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United States

SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

FORM 10-K

[ ] ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE
SECURITES EXCHANGE ACT OF 1934

FOR THE FISCAL YEAR ENDED DECEMBER 31, 1999

OR

[ ] TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE
SECURITIES EXCHANGE ACT OF 1934

For the transition period from ___________ to ___________

COMMISSION FILE NUMBER 1-14380

CITGO PETROLEUM CORPORATION
(Exact name of registrant as specified in its charter)


DELAWARE 73-1173881
(State or other jurisdiction of (I.R.S. Employer Identification No.)
incorporation or organization)

ONE WARREN PLACE, 6100 SOUTH YALE AVENUE, TULSA, OKLAHOMA 74136
(Address of principal executive office) (Zip Code)

(918) 495-4000
(Registrant's telephone number, including area code)

N.A.
(Former name, former address and former fiscal year, if changed
since last report)

Securities registered pursuant to Section 12(b) of the Act:

Title of Each Class Name of each Exchange on which registered
------------------- -----------------------------------------
7 7/8% SENIOR NOTES, DUE 2006 NEW YORK STOCK EXCHANGE, INC.

Securities registered pursuant to Section 12(g) of the Act: NONE

Indicate by check mark whether the registrant (1) has filed all reports required
to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during
the preceding 12 months (or for such shorter period that the registrant was
required to file such reports), and (2) has been subject to such filing
requirements for the past 90 days. Yes X No

The registrant meets the conditions set forth in General Instruction (I)(1)(a)
and (b) of Form 10-K and is therefore omitting (i) the information otherwise
required by Item 601 of Regulation S-K relating to a list of subsidiaries of the
registrant as permitted by General Instruction (I)(2)(b), (ii) certain
information otherwise required by Item 10 of Form 10-K relating to Directors and
Executive Officers as permitted by General Instruction (I)(2)(c) and (iii)
certain information otherwise required by Item 11 of Form 10-K relating to
executive compensation as permitted by General Instruction (I)(2)(c).

Disclosure of delinquent filers pursuant to Item 405
of Regulation S-K: NOT APPLICABLE

Aggregate market value of the voting stock held by non-affiliates
of the registrant: NOT APPLICABLE

Indicate the number of shares outstanding of each of the issuer's classes of
common stock, as of the latest practicable date.

COMMON STOCK, $1.00 PAR VALUE 1,000
----------------------------- -----
(Class) (outstanding at February 29, 2000)

DOCUMENTS INCORPORATED BY REFERENCE: None

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CITGO PETROLEUM CORPORATION

ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(D)
OF THE SECURITIES EXCHANGE ACT OF 1934
FOR THE FISCAL YEAR ENDED DECEMBER 31, 1999

TABLE OF CONTENTS
- --------------------------------------------------------------------------------




PAGE

FACTORS AFFECTING FORWARD LOOKING STATEMENTS.............................................................1

PART I.

Items 1. and 2. Business and Properties.................................................................2
Item 3. Legal Proceedings.........................................................................13
Item 4. Submission of Matters to a Vote of Security Holders.......................................14

PART II.

Item 5. Market for Registrant's Common Equity and Related Stockholder Matters.....................15
Item 6. Selected Financial Data...................................................................15
Item 7. Management's Discussion and Analysis of Financial Condition and
Results of Operations.....................................................................16
Item 7A. Quantitative and Qualitative Disclosures about Market Risk................................22
Item 8. Financial Statements and Supplementary Data...............................................24
Item 9. Changes in and Disagreements with Accountants on Accounting and Financial
Disclosure................................................................................24

PART III.

Item 10. Directors and Executive Officers of the Registrant........................................24
Item 11. Executive Compensation....................................................................24
Item 12. Security Ownership of Certain Beneficial Owners and Management............................24
Item 13. Certain Relationships and Related Transactions............................................24

PART IV.

Item 14. Exhibits, Financial Statements and Reports on Form 8-K....................................26




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FACTORS AFFECTING FORWARD LOOKING STATEMENTS

This Annual Report on Form 10-K contains certain "forward looking
statements" within the meaning of Section 27A of the Securities Act of 1933, as
amended, and Section 21E of the Securities Exchange Act of 1934, as amended.
Specifically, all statements under the captions "Items 1 and 2 - Business and
Properties" and "Item 7 - Management's Discussion and Analysis of Financial
Condition and Results of Operations" relating to Year 2000 matters, capital
expenditures and investments related to environmental compliance and strategic
planning, purchasing patterns of refined products and capital resources
available to the Company (as defined herein) are forward looking statements. In
addition, when used in this document, the words "anticipate", "estimate",
"prospect" and similar expressions are used to identify forward-looking
statements. Such statements are subject to certain risks and uncertainties, such
as increased inflation, continued access to capital markets and commercial bank
financing on favorable terms, increases in regulatory burdens, changes in prices
or demand for the Company's products as a result of competitive actions or
economic factors and changes in the cost of crude oil, feedstocks, blending
components or refined products. Such statements are also subject to the risks of
increased costs in related technologies and such technologies producing
anticipated results. Should one or more of these risks or uncertainties, among
others, materialize, actual results may vary materially from those estimated,
anticipated or projected. Although CITGO believes that the expectations
reflected by such forward looking statements are reasonable based on information
currently available to the Company, no assurances can be given that such
expectations will prove to have been correct.

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PART I

ITEMS 1. AND 2. BUSINESS AND PROPERTIES

OVERVIEW

CITGO Petroleum Corporation ("CITGO" or the "Company") is a direct
wholly-owned operating subsidiary of PDV America, Inc. ("PDV America"), a
wholly-owned subsidiary of PDV Holding, Inc. The Company's ultimate parent is
Petroleos de Venezuela, S.A. ("PDVSA", which may also be used herein to refer to
one or more of its subsidiaries), the national oil company of the Bolivarian
Republic of Venezuela. CITGO and its subsidiaries are engaged in the refining,
marketing and transportation of petroleum products including gasoline, diesel
fuel, jet fuel, petrochemicals, lubricants, asphalt and refined waxes, mainly
within the continental United States east of the Rocky Mountains.

CITGO's transportation fuel customers include primarily CITGO branded
wholesale marketers, convenience stores and airlines located mainly east of the
Rocky Mountains. Asphalt is principally marketed to independent paving
contractors on the East Coast of the United States. Lubricants are sold,
principally in the United States, to independent marketers, mass marketers and
industrial customers. Petrochemical feedstocks and industrial products are sold
to various manufacturers and industrial companies throughout the United States.
Petroleum coke is sold primarily in international markets.

COMPETITIVE NATURE OF THE PETROLEUM REFINING BUSINESS

The petroleum refining industry is cyclical and highly volatile,
reflecting capital intensity with high fixed and low variable costs. Petroleum
industry operations and profitability are influenced by a large number of
factors, over some of which individual petroleum refining and marketing
companies have little control. Governmental regulations and policies,
particularly in the areas of taxation, energy and the environment, have a
significant impact on petroleum activities, regulating how companies conduct
their operations and formulate their products. The U.S. petroleum refining
industry has entered a period of consolidation in which a number of former
competitors have combined their operations. Demand for crude oil and its
products is largely driven by the health of local and worldwide economies,
although weather patterns and taxation relative to other energy sources also
play significant parts. Generally, U.S. refiners compete for sales on the basis
of price and brand image and, in some areas, product quality.

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REFINING

CITGO's aggregate net interest in rated crude oil refining capacity is
691 thousand barrels per day ("MBPD"). The following table shows the capacity of
each U.S. refinery in which CITGO holds an interest and CITGO's share of such
capacity as of December 31, 1999.




TOTAL NET
RATED CITGO
CRUDE OWNERSHIP
CITGO REFINING IN REFINING
OWNER INTEREST CAPACITY CAPACITY
-------------- -------- -------- -----------
(%) (MBPD) (MBPD)
LOCATION

Lake Charles, LA CITGO 100 320 320
Corpus Christi, TX CITGO 100 150 150
Paulsboro, NJ CITGO 100 84 84
Savannah, GA CITGO 100 28 28
Houston, TX (1) LYONDELL-CITGO 41 265 109
------- ----------
Total Rated Refining Capacity as of
December 31, 1999 847 691
======= ==========


- ---------------------------
(1) Initial interest acquired on July 1, 1993. CITGO has a one-time option,
exercisable after January 1, 2000 but not later than September 30, 2000, to
increase for an additional investment, its participation interest up to a
maximum of 50%. See "CITGO--Refining--LYONDELL-CITGO". See also "Factors
Affecting Forward Looking Statements".

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The following table shows CITGO's aggregate interest in refining capacity,
refinery input and product yield for the three years in the period ended
December 31, 1999.

CITGO REFINERY PRODUCTION (1)




YEAR ENDED DECEMBER 31,
------------------------------------------------
1999(2) 1998 (2) 1997(3)
------------- ------------- ------------
(MBPD, EXCEPT AS OTHERWISE INDICATED)

RATED REFINING CAPACITY AT YEAR END 691 691 693
Refinery Input

Crude oil 607 82% 615 81% 548 79%
Other feedstocks 129 18% 144 19% 143 21%
--- --- --- --- --- ---
Total 736 100% 759 100% 691 100%
=== === === === === ===
Product Yield
Light fuels
Gasoline 317 43% 334 43% 309 44%
Jet fuel 70 9% 66 9% 66 9%
Diesel/#2 fuel 136 18% 134 17% 112 16%
Asphalt 42 6% 45 6% 42 6%
Petrochemicals and industrial products 179 24% 193 25% 174 25%
--- --- --- --- --- ---
Total 744 100% 772 100% 703 100%
=== === === === === ===
UTILIZATION OF RATED REFINING CAPACITY 88% 89% 79%


- -------------------------------
(1) Includes all of CITGO refinery production, except as otherwise noted.

(2) Includes a weighted average of 41.25% of the Houston refinery for 1999 and
1998.

(3) Includes a weighted average of 34.44% of the Houston refinery for 1997.

CITGO produces its light fuels and petrochemicals primarily through its
Lake Charles and Corpus Christi refineries. Asphalt refining operations are
carried out through CITGO's Paulsboro and Savannah refineries. CITGO also owns
an interest in and obtains refined products from a refinery in Houston.

Lake Charles, Louisiana Refinery. This refinery has a rated refining
capacity of 320 MBPD and is capable of processing large volumes of heavy crude
oil into a flexible slate of refined products, including significant quantities
of high-octane unleaded gasoline and reformulated gasoline. The Lake Charles
refinery has a Solomon Process Complexity Rating of 17.6 (as compared to an
average of 13.6 for U.S. refineries in the most recently available Solomon
Associates, Inc. survey). The Solomon Process Complexity Rating is an industry
measure of a refinery's ability to produce higher value products. A higher
Solomon Process Complexity Rating indicates a greater capability to produce such
products.

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The following table shows the rated refining capacity, refinery input and
product yield at the Lake Charles refinery for the three years in the period
ended December 31, 1999.

LAKE CHARLES REFINERY PRODUCTION




YEAR ENDED DECEMBER 31,
-------------------------------------------------
1999 1998 1997
------------ ------------ -------------
(MBPD, EXCEPT AS OTHERWISE INDICATED)

RATED REFINING CAPACITY AT YEAR END 320 320 320
Refinery Input
Crude oil 298 89% 288 84% 291 88%
Other feedstocks 36 11% 54 16% 40 12%
--- --- --- --- --- ---
Total 334 100% 342 100% 331 100%
=== === === === === ===

Product Yield
Light fuels
Gasoline 171 50% 187 54% 177 52%
Jet fuel 63 18% 59 17% 60 18%
Diesel/#2 fuel 53 16% 47 13% 45 13%
Petrochemicals and industrial products 54 16% 55 16% 56 17%
--- --- --- --- --- ---
Total 341 100% 348 100% 338 100%
=== === === === === ===
UTILIZATION OF RATED REFINING CAPACITY 93% 90% 91%


Approximately 33%, 66% and 63% of the total crude runs at the Lake
Charles refinery, in the years 1999, 1998 and 1997, respectively, consisted of
crude oil with an average API gravity of 24 degrees or less. Due to the complex
processing required to refine such crude oil, the Lake Charles refinery's
economic crude oil throughput capacity is approximately 290 MBPD, which is
approximately 91% of its rated capacity of 320 MBPD. The volume of heavy crude
oil available to CITGO in 1999 was less than in previous years. As a result, the
crude oil slate refined in 1999 was lighter. (See "Items 1. and 2. Business and
Properties--Crude Oil and Refined Product Purchases").

The Lake Charles refinery's Gulf Coast location provides it with access
to crude oil deliveries from multiple sources; imported crude oil and feedstock
supplies are delivered by ship directly to the Lake Charles refinery, while
domestic crude oil supplies are delivered by pipeline and barge. In addition,
the refinery is connected by pipelines to the Louisiana Offshore Oil Port and to
terminal facilities in the Houston area through which it can receive crude oil
deliveries if the Lake Charles docks are temporarily inaccessible. For delivery
of refined products, the refinery is connected through the Lake Charles Pipeline
directly to the Colonial and Explorer Pipelines, which are the major refined
product pipelines supplying the northeast and midwest regions of the United
States, respectively. The refinery also uses adjacent terminals and docks, which
provide access for ocean tankers and barges to load refined products for
shipment.

The Lake Charles refinery's main petrochemical products are propylene
and benzene. Industrial products include sulphur, residual fuels and petroleum
coke.

Located adjacent to the Lake Charles refinery is a lubricants refinery
operated by CITGO and owned by Cit-Con Oil Corporation ("Cit-Con"), which is

owned 65% by CITGO and 35% by Conoco, Inc. ("Conoco"). Primarily because of its
specific design, the Cit-Con refinery produces high quality oils and waxes, and
is one of the few in the industry designed as a stand-alone lubricants refinery.

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8


Feedstocks are supplied 65% from CITGO's Lake Charles refinery and 35% from
Conoco's Lake Charles refinery. Finished refined products are shared on the same
pro rata basis by CITGO and Conoco.

Corpus Christi, Texas Refinery. The Corpus Christi refinery is an
efficient and highly complex facility, capable of processing high volumes of
heavy crude oil into a flexible slate of refined products, with a Solomon
Process Complexity Rating of 16.7 (as compared to an average 13.6 for U.S.
refineries in the most recently available Solomon Associates, Inc. survey). This
refinery complex consists of the East and West Plants, located within five miles
of each other.

The following table shows rated refining capacity, refinery input and
product yield at the Corpus Christi refinery for the three years in the period
ended December 31, 1999.


CORPUS CHRISTI REFINERY PRODUCTION




YEAR ENDED DECEMBER 31,
-------------------------------------------------
1999 1998 1997
------------- ------------- -------------
(MBPD, EXCEPT AS OTHERWISE INDICATED)

RATED REFINING CAPACITY AT YEAR END 150 150 150
Refinery Input

Crude oil 148 70% 152 71% 115 59%
Other feedstocks 62 30% 61 29% 79 41%
--- --- --- --- --- ---
Total 210 100% 213 100% 194 100%
=== === === === === ===
Product Yield
Light fuels
Gasoline 96 46% 97 46% 93 48%
Diesel/#2 fuel 55 27% 58 27% 45 23%
Petrochemicals and industrial products 56 27% 57 27% 56 29%
--- --- --- --- --- ---
Total 207 100% 212 100% 194 100%
=== === === === === ===
UTILIZATION OF RATED REFINING CAPACITY 99% 101% 77%


Corpus Christi crude runs during 1999 and 1998 consisted of 81% and
100%, respectively, heavy sour Venezuelan crude. The average API gravity of the
composite crude slate run at the Corpus Christi refinery is approximately
24 degrees. Crude oil supplies are delivered directly to the Corpus Christi
refinery through the Port of Corpus Christi. The relatively low utilization of
rated refining capacity in 1997 is a result of a major turnaround in that year.

CITGO operates the West Plant under a sublease agreement (the
"Sublease") from Union Pacific Corporation ("Union Pacific"). The basic term of
the Sublease ends on January 1, 2004, but CITGO may renew the Sublease for
successive renewal terms through January 31, 2011. CITGO has the right to
purchase the West Plant from Union Pacific at the end of the basic term, the end
of any renewal term, or on January 31, 2011 at a nominal price.

The Corpus Christi refinery's main petrochemical products include
cumene, cyclohexane, methyl tertiary butyl ether ("MTBE") and aromatics
(including benzene, toluene and xylene). The Company produces a significant
quantity of cumene, an important petrochemical product used in the engineered
plastics industry.





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LYONDELL-CITGO Refining LP. Subsidiaries of CITGO and Lyondell Chemical
Company ("Lyondell") are partners in LYONDELL-CITGO Refining LP
("LYONDELL-CITGO"), which owns and operates a sophisticated 265 MBPD refinery
previously owned by Lyondell and located on the ship channel in Houston, Texas.
At December 31, 1999, CITGO's investment in LYONDELL-CITGO was $560 million. In
addition, at December 31, 1999, CITGO held notes receivable from LYONDELL-CITGO
of $28 million. (See Consolidated Financial Statements of CITGO -- Note 3 in
Item 14a). A substantial amount of the crude oil processed by this refinery is
supplied by PDVSA under a long-term crude oil supply agreement through the year
2017. CITGO purchases substantially all of the gasoline, diesel and jet fuel
produced at this refinery under a long-term contract. (See Consolidated
Financial Statements of CITGO -- Notes 3 and 4 in Item 14a).

CRUDE OIL AND REFINED PRODUCT PURCHASES

CITGO owns no crude oil reserves or production facilities, and must
therefore rely on purchases of crude oil and feedstocks for its refinery
operations. In addition, because CITGO's refinery operations do not produce
sufficient refined products to meet the demands of its branded marketers, CITGO
purchases refined products, primarily gasoline, from other refiners, including
LYONDELL-CITGO, PDV Midwest Refining, L.L.C. ("PDVMR"), Chalmette Refining,
L.L.C. ("Chalmette") and Hovensa, L.L.C. ("HOVENSA"). (See "Item 13. Certain
Relationships and Related Transactions").

Crude Oil Purchases. The following chart shows CITGO's purchases of
crude oil for the three years in the period ended December 31, 1999:


CITGO Crude Oil Purchases




LAKE CHARLES, LA CORPUS CHRISTI, TX PAULSBORO, NJ SAVANNAH, GA
-------------------- ------------------- -------------------- --------------------
1999 1998 1997 1999 1998 1997 1999 1998 1997 1999 1998 1997
---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ----
(MBPD) (MBPD) (MBPD) (MBPD)

SUPPLIERS
PDVSA 104 134 130 118 153 117 42 52 49 19 17 14
PEMEX 54 51 61 14 -- -- -- -- -- -- -- --
Occidental -- 20 40 -- -- -- -- -- -- -- -- --
Other sources 142 88 57 15 -- -- -- -- -- -- -- --
---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ----
Total 300 293 288 147 153 117 42 52 49 19 17 14
==== ==== ==== ==== ==== ==== ==== ==== ==== ==== ==== ====


CITGO's largest supplier of crude oil is PDVSA. CITGO has entered into
long-term crude oil supply agreements with PDVSA with respect to the crude oil
requirements for each of CITGO's refineries. The following table shows the base
and incremental volumes of crude oil contracted for delivery and the volumes of
crude oil actually delivered under these contracts in the three years ended
December 31, 1999.


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CITGO CRUDE OIL SUPPLY CONTRACTS WITH PDVSA




VOLUMES OF
CRUDE OIL PURCHASED
CONTRACT CRUDE FOR THE YEAR ENDED
OIL VOLUME DECEMBER 31, CONTRACT
---------------------- --------------------- EXPIRATION
BASE INCREMENTAL (1) 1999 1998 1997 DATE
---- --------------- ---- ---- ---- ------
(MBPD) (MBPD) (YEAR)

LOCATION
Lake Charles, LA(2) 120 50 101(3) 121 115 2006
Corpus Christi, TX(2) 130 -- 108(3) 128 125 2012
Paulsboro, NJ(2) 30 -- 22(3) 35 35 2010
Savannah, GA(2) 12 -- 11(3) 12 12 2013
Houston, TX (4) 200 -- 173 223 216 2017



(1) The supply agreement for the Lake Charles refinery gives PDVSA the right to
sell to CITGO incremental volumes up to the maximum amount specified in the
table, subject to certain restrictions relating to the type of crude oil to
be supplied, refining capacity and other operational considerations at the
refinery.

(2) Volumes purchased as shown on this table do not equal purchases from
PDVSA (shown in the previous table) as a result of transfers between
refineries of contract crude purchases included here and spot purchases
which are included in the previous table.

(3) The crude supply contracts include force majeure clauses that have been
exercised. Exercise of these clauses requires that the Company locate
alternative sources of supply for its crude oil requirements, and such
action resulted in higher crude oil costs.

(4) CITGO acquired a participation interest in LYONDELL-CITGO, the owner of the
Houston refinery, on July 1, 1993. In connection with such transaction,
LYONDELL-CITGO entered into a long-term crude oil supply agreement with
PDVSA that provided for delivery volumes of 135 MBPD until the completion
of a refinery enhancement project at which time the delivery volumes
increased to a range that extends from 200 MBPD to 230 MBPD.

These crude oil supply agreements require PDVSA to supply minimum
quantities of crude oil and other feedstocks to CITGO for a fixed period,
usually 20 to 25 years. The supply agreements differ somewhat for each entity
and each CITGO refinery but generally incorporate formula prices based on the
market value of a slate of refined products deemed to be produced for each
particular grade of crude oil or feedstock, less (i) certain deemed refining
costs; (ii) certain actual costs, including transportation charges, import
duties and taxes; and (iii) a deemed margin, which varies according to the grade
of crude oil or feedstock delivered. Under each supply agreement, deemed margins
and deemed costs are adjusted periodically by a formula primarily based on the
rate of inflation. Because deemed operating costs and the slate of refined
products deemed to be produced for a given barrel of crude oil or other
feedstock do not necessarily reflect the actual costs and yields in any period,
the actual refining margin earned by a purchaser under the various supply
agreements will vary depending on, among other things the efficiency with which
such purchaser conducts its operations during such period.

These crude supply agreements contain force majeure provisions which
entitle the supplier to reduce the quantity of crude oil and feedstocks
delivered under the crude supply agreements under specified circumstances. As of
December 31, 1999, PDVSA deliveries of crude oil to CITGO were less than
contractual base volumes due to PDVSA declaration of force majeure pursuant to
all of the long-term crude oil supply contracts related to CITGO's refineries.
Therefore, the Company has been required to use alternative sources of crude
oil. As a result, CITGO estimates that crude oil costs for the year ended
December 31, 1999 were higher by $55 million from what would have otherwise been
the case. It is not possible to forecast the future financial impacts of these
reductions in crude oil deliveries on

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CITGO's costs because the correlation between crude oil and refined product
prices is not constant over time. Additionally, because of among other things,
changes in crude oil economics, the duration of force majeure cannot be
forecasted.

These contracts also contain provisions which entitle the supplier to
reduce the quantity of crude oil and feedstocks delivered under the crude supply
agreements and oblige the supplier to pay CITGO the deemed margin under that
contract for each barrel of reduced crude oil and feedstocks. During the second
half of 1999, PDVSA did not deliver naphtha pursuant to one of the contracts and
made contractually specified deemed margin payments in lieu thereof. The
financial effect was an increase in costs by $4 million from what would have
otherwise been the case.

Prior to 1995, certain costs were used in the CITGO supply agreement
formulas, aggregating approximately $70 million per year, which were to cease
being deductible after 1996. Commencing in the third quarter of 1995, a portion
of such deductions was deferred from 1995 and 1996 to the years 1997 through
1999. The effect of the adjustments to the original modifications was to reduce
the cost of crude oil purchased from PDVSA by approximately $21 million in 1999,
$25 million in 1998 and $25 million in 1997, as compared to the original
modification and without giving effect to any other factors that may affect the
amount payable for crude oil under these agreements.

Most of the crude oil and feedstocks purchased by CITGO from PDVSA are
delivered on tankers owned by PDV Marina, S.A., a wholly-owned subsidiary of
PDVSA. In 1999, 91% of the PDVSA contract crude oil delivered to the Lake
Charles and Corpus Christi refineries was delivered on tankers operated by this
PDVSA subsidiary.

CITGO purchases additional crude oil under a 90-day evergreen agreement
with an affiliate of Petroleos Mexicanos ("PEMEX"). CITGO's refineries are
particularly well suited to refine PEMEX's Maya heavy, sour crude oil, which is
similar in many respects to several types of Venezuelan crude oil.

CITGO was a party to a contract with an affiliate of Occidental
Petroleum Corporation ("Occidental") for the purchase of light, sweet crude oil
to produce lubricants. This contract expired on August 31, 1998. CITGO also
purchases sweet crude oil under long-standing relationships with numerous other
producers.

Refined Product Purchases. CITGO is required to purchase refined
products to supplement the production of the Lake Charles and Corpus Christi
refineries in order to meet demand of CITGO's marketing network. During 1999,
CITGO's shortage in gasoline production approximated 344 MBPD. However, due to
logistical needs, timing differences and product grade imbalances, CITGO
purchased approximately 691 MBPD of gasoline and sold into the spot market, or
to refined product traders or other refineries approximately 245 MBPD of
gasoline. The following table shows CITGO's purchases of refined products for
the three years in the period ended December 31, 1999.

CITGO REFINED PRODUCT PURCHASES




YEAR ENDED DECEMBER 31,
--------------------------
1999 1998 1997
----- ---- ----
(MBPD)

LIGHT FUELS
Gasoline 691 581 518
Jet fuel 77 69 74
Diesel/ #2 fuel 279 208 190
----- ---- ----
Total 1,047 858 782
===== ==== ====



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As of December 31, 1999, CITGO purchased substantially all of the
gasoline, diesel and jet fuel produced at the LYONDELL-CITGO refinery under a
long-term contract which extends through the year 2017. LYONDELL-CITGO was a
major supplier in 1999 providing CITGO with 117 MBPD of gasoline, 68 MBPD of
diesel/#2 fuel and 18 MBPD of jet fuel. See "--Refining--LYONDELL-CITGO".

As of May 1, 1997, CITGO began purchasing, under a contract with a
sixty-month term, substantially all of the refined products produced at the
PDVMR refinery. During the period ended December 31, 1999, the PDVMR refinery,
located in Lemont, Illinois, provided CITGO with 84 MBPD of gasoline, 38 MBPD of
diesel/#2 fuel and 2 MBPD of jet fuel.

An affiliate of PDVSA acquired a 50% equity interest in a refinery in
Chalmette, Louisiana ("Chalmette") in October 1997 and has assigned to CITGO its
option to purchase up to 50% of the refined products produced at the refinery
through December 31, 2000. CITGO acquired approximately 66 MBPD of refined
products from the refinery during 1999, approximately one-half of which was
gasoline.

In October 1998 an affiliate of PDVSA acquired a 50% equity interest in
HOVENSA (a joint venture that owns and operates a refinery in St. Croix, U.S.
Virgin Islands) and has the right under a product sales agreement to assign
periodically to CITGO, or other related parties, its option to purchase 50% of
the refined products produced by HOVENSA (less a certain portion of such
products that HOVENSA will market directly in the local and Caribbean markets).
In addition, under the product sales agreement, the PDVSA affiliate has
appointed CITGO as its agent in designating which of its affiliates shall from
time to time take deliveries of the refined products available to it. The
product sales agreement will be in effect for the life of the joint venture,
subject to termination events based on default or mutual agreement. Pursuant to
the above arrangement, CITGO acquired approximately 118 MBPD of refined products
from the refinery during 1999, approximately one-half of which was gasoline.

MARKETING

CITGO's major products are light fuels (including gasoline, jet fuel,
and diesel fuel), industrial products and petrochemicals, asphalt, lubricants
and waxes. The following table shows revenues and volumes of each of these
product categories for the three years in the period ended December 31, 1999.


CITGO REFINED PRODUCT SALES REVENUES AND VOLUMES





YEAR ENDED DECEMBER 31, YEAR ENDED DECEMBER 31,
------------------------------------ --------------------------------
1999 1998 1997 1999 1998 1997
---------- ---------- ---------- ------ ------ ------
($ IN MILLIONS) (MM GALLONS)

LIGHT FUELS
Gasoline $ 7,691 $ 6,252 $ 7,754 13,115 13,241 11,953
Jet fuel 1,129 828 1,183 2,198 1,919 2,000
Diesel / #2 fuel 2,501 1,945 2,439 5,057 4,795 4,288
ASPHALT 338 300 398 753 774 749
PETROCHEMICALS AND INDUSTRIAL PRODUCTS 1,024 937 1,172 2,063 2,440 1,940
LUBRICANTS AND WAXES 482 441 467 285 230 239
---------- ---------- ---------- ------ ------ ------
Total $ 13,165 $ 10,703 $ 13,413 23,471 23,399 21,169
========== ========== ========== ====== ====== ======


Light Fuels. Gasoline sales accounted for 58% of CITGO's refined
product sales in the years 1999, 1998 and 1997. CITGO markets CITGO branded
gasoline through approximately 13,500 independently owned and operated CITGO
branded retail outlets (including 11,471 branded retail outlets owned and
operated by approximately 816 independent marketers and 2,027 7-Eleven(TM)
convenience stores) located

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throughout the United States, primarily east of the Rocky Mountains. CITGO
purchases gasoline to supply its marketing network, as the gasoline production
from the Lake Charles and Corpus Christi refineries was only equivalent to
approximately 45%, 48% and 47% of the volume of CITGO branded gasoline sold in
1999, 1998 and 1997, respectively. See "--Crude Oil and Refined Product
Purchases -- Refined Product Purchases".

CITGO's strategy is to enhance the value of the CITGO brand in order to
obtain premium pricing for its products by appealing to consumer preference for
quality petroleum products and services. This is accomplished through a
commitment to quality, dependability and customer service to its independent
marketers, which constitute CITGO's primary distribution channel.

Sales to independent branded marketers typically are made under
contracts that range from three to seven years. Sales to 7-Eleven(TM)
convenience stores are made under a contract that extends through the year 2006.
Under this contract, CITGO arranges all transportation and delivery of motor
fuels and handles all product ordering. CITGO also acts as processing agent for
the purpose of facilitating and implementing orders and purchases from
third-party suppliers. CITGO receives a processing fee for such services.

CITGO markets jet fuel directly to airline customers at 27 airports,
including such major hub cities as Atlanta, Chicago, Dallas/Fort Worth, New York
and Miami.

CITGO's delivery of light fuels to its customers is accomplished in
part through 50 refined product terminals located throughout CITGO's primary
market territory. Of these terminals, 38 are wholly-owned by CITGO and 12 are
jointly owned. Fourteen of CITGO's product terminals have waterborne docking
facilities, which greatly enhance the flexibility of CITGO's logistical system.
In addition, CITGO operates and delivers refined products from seven terminals
owned by PDVMR in the Midwest. Refined product terminals owned or operated by
CITGO provide a total storage capacity of approximately 22 million barrels.
Also, CITGO has active exchange relationships with over 300 other refined
product terminals, providing flexibility and timely response capability to meet
distribution needs.

Petrochemicals and Industrial Products. CITGO sells petrochemicals in
bulk to a variety of U.S. manufacturers as raw material for finished goods. The
majority of CITGO's cumene production is sold to Mount Vernon Phenol Plant
Partnership ("MVPPP"), a joint venture phenol production plant in which CITGO is
a limited partner. The phenol plant produces phenol and acetone for sale
primarily to the principal partner in the phenol plant for the production of
plastics. Sulphur is sold to the U.S. and international fertilizer industries;
cycle oils are sold for feedstock processing and blending; natural gas liquids
are sold to the U.S. fuel and petrochemical industry; petroleum coke is sold
primarily in international markets, through a joint venture, for use as kiln and
boiler fuel; and residual fuel blendstocks are sold to a variety of fuel oil
blenders.

Asphalt. CITGO markets asphalt through 15 terminals located along the
East Coast, from Savannah, Georgia to Albany, New York. Asphalt is sold
primarily to independent contractors for use in the construction and resurfacing
of roadways. Demand for asphalt in the Northeastern U.S. peaks in the summer
months.

Lubricants and Waxes. CITGO markets many different types, grades and
container sizes of lubricants and wax products, with the bulk of sales
consisting of automotive oil and lubricants and industrial lubricants. Other
major lubricant products include 2-cycle engine oil and automatic transmission
fluid.

PIPELINE OPERATIONS

CITGO owns and operates 142 miles of crude oil pipeline systems and
approximately 1,021 miles of products pipeline systems. CITGO also has equity
interests in two crude oil pipeline companies with a total of approximately
1,929 miles of pipeline plus equity interests in five refined product pipeline
companies with a total

11

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of approximately 8,437 miles of pipeline. CITGO's pipeline interests provide it
with access to substantial refinery feedstocks and reliable transportation to
refined product markets, as well as cash flows from dividends. One of the
refined product pipelines in which CITGO has an interest, Colonial Pipeline, is
the largest refined product pipeline in the United States, transporting refined
products from the Gulf Coast to the mid-Atlantic and eastern seaboard states.

EMPLOYEES

CITGO and its subsidiaries have a total of approximately 4,200
employees, approximately 1,700 of who are covered by 15 union contracts.
Approximately 1,600 of the union employees are employed in refining operations.
The remaining union employees are located primarily at a lubricant plant and
various refined product terminals.

ENVIRONMENT AND SAFETY

Environment

Beginning in 1994, the U.S. refining industry was required to comply
with stringent product specifications under the 1990 Clean Air Act ("CAA")
Amendments for reformulated gasoline and low sulphur diesel fuel which
necessitated additional capital and operating expenditures, and altered
significantly the U.S. refining industry and the return realized on refinery
investments. In addition, numerous other factors affect the Company's plans with
respect to environmental compliance and related expenditures. See "Factors
Affecting Forward Looking Statements".

CITGO is subject to various federal, state and local environmental laws
and regulations which may require CITGO to take action to correct or improve the
effects on the environment of prior disposal or release of petroleum substances
by CITGO or other parties. Management believes the Company is in compliance with
these laws and regulations in all material aspects. Maintaining compliance with
environmental laws and regulations in the future could require significant
capital expenditures and additional operating costs.

In 1992, the Company reached an agreement with a state agency to cease
usage of certain surface impoundments at the Company's Lake Charles refinery by
1994. A mutually acceptable closure plan was filed with the state in 1993. The
Company and its former owner are participating in the closure and sharing the
related costs based on estimated contributions of waste and ownership periods.
The remediation commenced in December 1993. In 1997, the Company presented a
proposal to a state agency revising the 1993 closure plan. In 1998 and 2000, the
Company submitted further revisions as requested by the state agency. A ruling
on the proposal, as amended, is expected in 2000 with final closure to begin in
2002.

In 1992, an agreement was reached between the Company and its former
owner concerning a number of environmental issues. The agreement consisted, in
part, of payments to the Company totaling $46 million. The former owner will
continue to share the costs of certain specific environmental remediation and
certain tort liability actions based on ownership periods and specific terms of
the agreement.

The Texas Natural Resources Conservation Commission ("TNRCC") conducted
an environmental compliance review at the Corpus Christi refinery in the first
and second quarters of 1998. In January 1999, the TNRCC issued the Company a
Notice of Violation ("NOV") arising from this review and in October 1999
proposed fines of approximately $1.6 million related to the NOV. Most of the
alleged violations refer to recordkeeping and reporting issues, failure to meet
required emission levels, and failure to properly monitor emissions. TNRCC
issued the Company another NOV in December 1999 based on its 1999 audit which
cites items similar to those cited earlier and the agency has tentatively
suggested that the two audits should be combined for resolution. The Company
intends to vigorously protest the alleged violations and proposed fines.

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In June 1999, CITGO and numerous other industrial companies received
notice from the U.S. Environmental Protection Agency, ("EPA") that the EPA
believes these companies have contributed to contamination in the Calcasieu
Estuary, in the proximity of Lake Charles, Calcasieu Parish, Louisiana and are
Potentially Responsible Parties ("PRPs") under the Comprehensive Environmental
Response, Compensation, and Liability Act ("CERCLA"). The EPA made a demand for
payment of its past investigation costs from CITGO and other PRPs and advised it
intends to conduct a Remedial Investigation/Feasibility Study ("RI/FS") under
its CERCLA authority. CITGO and other PRPs may be potentially responsible for
the costs of the RI/FS. CITGO disagrees with the EPA's allegations and intends
to contest this matter.

In October 1999, the EPA issued a NOV to CITGO for violations of
federal regulations regarding reformulated gasoline found during a May 1998
inspection at CITGO's Braintree, Massachusetts terminal and recommended a
penalty of $218,500. The Company intends to vigorously contest the alleged
violations and proposed fines.

Based on currently available information, including the continuing
participation of former owners in remediation actions and indemnification
agreements with third parties, CITGO management believes that its accruals are
sufficient to address its environmental obligations. Conditions which require
additional expenditures may exist with respect to various Company sites
including, but not limited to, CITGO's operating refinery complexes, closed
refineries, service station sites and crude oil and petroleum product storage
terminals. The amount of such future expenditures, if any, is indeterminable.

Increasingly stringent regulatory provisions periodically require
additional capital expenditures. During 1999, CITGO spent approximately $81
million for environmental and regulatory capital improvements in its operations.
Management currently estimates that CITGO will spend approximately $350 million
for environmental and regulatory capital projects over the five-year period
2000-2004. These estimates may vary due to a variety of factors. See "Item 7 --
Management's Discussion and Analysis of Financial Condition and Results of
Operations -- Liquidity and Capital Resources". See also "Factors Affecting
Forward Looking Statements".

Safety

Due to the nature of petroleum refining and distribution, CITGO is
subject to stringent occupational health and safety laws and regulations. CITGO
maintains comprehensive safety, training and maintenance programs. CITGO
believes that it is in substantial compliance with occupational health and
safety laws.

ITEM 3. LEGAL PROCEEDINGS

Various lawsuits and claims arising in the ordinary course of business
are pending against the Company. The Company records accruals for potential
losses when, in management's opinion, such losses are probable and reasonably
estimable. If known lawsuits and claims were to be determined in a manner
adverse to the Company, and in amounts greater than the Company's accruals, then
such determinations could have a material adverse effect on the Company's
results of operations in a given reporting period. However, in management's
opinion the ultimate resolution of these lawsuits and claims will not exceed, by
a material amount, the amount of the accruals and the insurance coverage
available to the Company. This opinion is based upon management's and counsel's
current assessment of these lawsuits and claims. The most significant lawsuits
and claims are discussed below.

The case brought in the United States District Court for the Northern
District of Illinois by the Oil Chemical & Atomic Workers, Local 7-517 against
UNO-VEN, CITGO, PDVSA, PDV America, and UNOCAL pursuant to Section 301 of the
Labor Management Relations Act ("LMRA") resulted in the Court's ruling in favor
of all defendants on Motions for Summary Judgment in June 1998; this ruling was
affirmed on appeal and the case is now terminated.

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In May 1997, an explosion and fire occurred at CITGO's Corpus Christi
refinery. No serious personal injuries were reported. CITGO received
approximately 7,500 individual claims for personal injury and property damage
related to the above noted incident. Approximately 1,300 of these claims have
been resolved for amounts which individually and collectively were not material.
There are presently seventeen lawsuits filed on behalf of approximately 9,000
individuals arising out of this incident in federal and state courts in Corpus
Christi alleging property damages, personal injury and punitive damages. A trial
of one of the federal court lawsuits in October 1998 involving ten bellwether
plaintiffs, out of approximately 400 plaintiffs, resulted in a verdict for
CITGO. The remaining plaintiffs in this case have agreed to settle for an
immaterial amount.

A class action lawsuit is pending in Corpus Christi, Texas state court
against CITGO and other operators and owners of nearby industrial facilities
which claims damages for reduced value of residential properties located in the
vicinity of the industrial facilities as a result of air, soil and groundwater
contamination. CITGO has contracted to purchase all of the 275 properties
included in the lawsuit which are in an area adjacent to CITGO's Corpus Christi
refinery and settle the property damage claims relating to these properties.
Related to this purchase, $15.7 million was expensed in 1997. The trial judge
recently ruled, over CITGO's objections, that a settlement agreement CITGO
entered into in September 1997 and subsequently withdrew from, which provided
for settlement of the remaining property damage claims for $5 million is
enforceable. CITGO believes this ruling is erroneous and will appeal. The trial
against CITGO of these remaining claims has been postponed indefinitely. Two
related personal injury and wrongful death lawsuits were filed against the same
defendants in 1996, one of which is scheduled for trial in 2000. A trial date
for the other case has not been set.

Litigation is pending in federal court in Lake Charles, Louisiana,
against CITGO by a number of current and former Lake Charles refinery employees
and applicants asserting claims of racial discrimination in connection with
CITGO's employment practices. The first trial in this case, which involved two
plaintiffs, began in October 1999 and resulted in verdicts for the Company. The
Court granted the Company's motion for summary judgment with respect to another
group of claims; an appeal of this ruling is expected. Trials of the remaining
cases are currently stayed.

CITGO is among defendants to lawsuits in California, North Carolina and
New York alleging contamination of water supplies by methyl tertiary butyl ether
("MTBE"), a component of gasoline. The action in California was filed in
November 1998 by the South Tahoe Public Utility District and CITGO was added as
a defendant in February 1999. The North Carolina case, filed in January 1999,
and the New York case, filed in January 2000 are putative class actions on
behalf of owners of water wells and other drinking water supplies in the state.
All of these actions allege that MTBE poses public health risks. Both actions
seek damages as well as remediation of the alleged contamination. These matters
are in early stages of discovery. CITGO has denied all of the allegations and is
pursuing its defenses.

ITEM 4. SUBMISSION OF MATTERS TO A VOTE OF SECURITY HOLDERS

Not Applicable.

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PART II

ITEM 5. MARKET FOR REGISTRANT'S COMMON EQUITY AND RELATED STOCKHOLDER MATTERS

The Company's common stock is not publicly traded. All of the Company's
common stock is held by PDV America, a Delaware corporation whose ultimate
parent is PDVSA. In 1999, CITGO declared and paid dividends of $15 million to
PDV America.


ITEM 6. SELECTED FINANCIAL DATA

The following table sets forth certain selected historical consolidated
financial and operating data of CITGO as of the end of and for each of the five
years in the period ended December 31, 1999. The following table should be read
in conjunction with the consolidated financial statements of CITGO as of
December 31, 1999 and 1998, and for each of the three years in the period ended
December 31, 1999, included in "Item 8. Financial Statements and Supplementary
Data".





YEAR ENDED DECEMBER 31,
-----------------------------------------------------------------
1999 1998 1997 1996 1995(1)
---------- ---------- ---------- ---------- ------------
(DOLLARS IN MILLIONS)

INCOME STATEMENT DATA
Sales $ 13,317 $ 10,912 $ 13,591 $ 12,952 $ 10,522
Equity in earnings of affiliates 21 77 64 21 34
Net revenues 13,322 10,981 13,645 12,969 10,553
Income before extraordinary gain 146 194 207 127 136
Extraordinary gain(2) -- -- -- -- 4
Net income 146 194 207 127 140
Other comprehensive income (loss) (3) -- -- -- --
Comprehensive income 143 194 207 127 140
RATIO OF EARNINGS TO FIXED CHARGES (3) 3.47 X 3.92 X 3.21 X 2.45 X 2.71 X
BALANCE SHEET DATA
Total assets $ 5,907 $ 5,254 $ 5,412 $ 5,630 $ 4,924
Long-term debt (excluding current portion)(4) 1,478 1,361 1,275 1,599 1,301
Total debt (5) 1,557 1,460 1,386 1,759 1,432
Shareholder's equity 1,964 1,846 2,081 1,870 1,732


- ---------------------------

(1) Includes operations of Cato Oil & Grease since May 1, 1995.

(2) Represents extraordinary gain for the early extinguishment of debt (net of
related income tax provision of $2 million) in 1995.

(3) For the purpose of calculating the ratio of earnings to fixed charges,
"earnings" consist of income before income taxes and cumulative effect of
accounting changes plus fixed charges (excluding capitalized interest),
amortization of previously capitalized interest and certain adjustments to
equity in income of affiliates. "Fixed charges" include interest expense,
capitalized interest, amortization of debt issuance costs and a portion of
operating lease rent expense deemed to be representative of interest.

(4) Includes long-term debt to third parties and capital lease obligations.

(5) Includes short-term bank loans, current portion of capital lease
obligations and long-term debt, long-term debt and capital lease
obligations.


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ITEM 7. MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND
RESULTS OF OPERATIONS

OVERVIEW

The following discussion of the financial condition and results of
operations of CITGO should be read in conjunction with the consolidated
financial statements of CITGO included elsewhere herein.

Petroleum industry operations and profitability are influenced by a
large number of factors, some of which individual petroleum refining and
marketing companies cannot entirely control. Governmental regulations and
policies, particularly in the areas of taxation, energy and the environment,
have a significant impact on petroleum activities, regulating how companies
conduct their operations and formulate their products, and, in some cases,
limiting their profits directly. Demand for crude oil and refined products is
largely driven by the condition of local and worldwide economies, although
weather patterns and taxation relative to other energy sources also play a
significant part. CITGO's consolidated operating results are affected by these
industry-specific factors and by company-specific factors, such as the success
of marketing programs and refinery operations.

The earnings and cash flows of companies engaged in the refining and
marketing business in the United States are primarily dependent upon producing
and selling quantities of refined products at margins sufficient to cover fixed
and variable costs. The refining and marketing business is characterized by high
fixed costs resulting from the significant capital outlays associated with
refineries, terminals and related facilities. This business is also
characterized by substantial fluctuations in variable costs, particularly costs
of crude oil, feedstocks and blending components, and in the prices realized for
refined products. Crude oil and refined products are commodities whose price
levels are determined by market forces beyond the control of CITGO.

In general, prices for refined products are significantly influenced by
the price of crude oil, feedstocks and blending components. Although an increase
or decrease in the price for crude oil, feedstocks and blending components
generally results in a corresponding increase or decrease in prices for refined
products, generally there is a lag in the realization of the corresponding
increase or decrease in prices for refined products. The effect of changes in
crude oil prices on CITGO's consolidated operating results therefore depends in
part on how quickly refined product prices adjust to reflect these changes. A
substantial or prolonged increase in crude oil prices without a corresponding
increase in refined product prices, or a substantial or prolonged decrease in
refined product prices without a corresponding decrease in crude oil prices, or
a substantial or prolonged decrease in demand for refined products could have a
significant negative effect on the Company's earnings and cash flows. CITGO
purchases a significant amount of its crude oil requirements from PDVSA under
long-term supply agreements (expiring in the years 2006 through 2013). This
supply represented approximately 48% of the crude oil processed in refineries
operated by CITGO in the year ended December 31, 1999. The crude supply
contracts include force majeure clauses that have been exercised. The exercise
of these clauses requires that the Company use alternative sources of supply for
its crude oil requirements, and such action resulted in higher crude costs. (See
Items 1. and 2. Business and Properties--Crude Oil and Refined Product
Purchases). CITGO also purchases significant volumes of refined products to
supplement the production from its refineries to meet marketing demands and to
resolve logistical issues. CITGO's earnings and cash flows are also affected by
the cyclical nature of petrochemical prices. As a result of the factors
described above, the earnings and cash flows of CITGO may experience substantial
fluctuations. Inflation was not a significant factor in the operations of CITGO
during the three years ended December 31, 1999.

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The following table summarizes the sources of CITGO's sales revenues
and volumes.

CITGO SALES REVENUES AND VOLUMES




YEAR ENDED DECEMBER 31, YEAR ENDED DECEMBER 31,
------------------------------------ --------------------------------
1999 1998 1997 1999 1998 1997
---------- ---------- ---------- ------ ------ ------
($ IN MILLIONS) (MM GALLONS)

Gasoline $ 7,691 $ 6,252 $ 7,754 13,115 13,241 11,953
Jet fuel 1,129 828 1,183 2,198 1,919 2,000
Diesel / #2 fuel 2,501 1,945 2,439 5,057 4,795 4,288
Asphalt 338 300 398 753 774 749
Petrochemicals and industrial products 1,024 937 1,172 2,063 2,440 1,940
Lubricants and waxes 482 441 467 285 230 239
---------- ---------- ---------- ------ ------ ------
Total refined product sales $ 13,165 $ 10,703 $ 13,413 23,471 23,399 21,169
Other sales 152 209 178 -- -- --
---------- ---------- ---------- ------ ------ ------
Total sales $ 13,317 $ 10,912 $ 13,591 23,471 23,399 21,169
========== ========== ========== ====== ====== ======


The following table summarizes CITGO's cost of sales and operating
expenses.

CITGO COST OF SALES AND OPERATING EXPENSES




YEAR ENDED DECEMBER 31,
1999 1998 1997
------- ------- -------
($ IN MILLIONS)

Crude oil $ 2,855 $ 1,928 $ 2,917
Refined products 7,828 6,078 7,634
Intermediate feedstocks 883 826 1,152
Refining and manufacturing costs 816 767 793
Other operating costs and expenses and inventory changes 415 741 524
------- ------- -------
Total cost of sales and operating expenses $12,797 $10,340 $13,020
======= ======= =======


RESULTS OF OPERATIONS -- 1999 COMPARED TO 1998

Sales revenues and volumes. Sales increased $2,405 million,
representing a 22% increase from 1998 to 1999. This was due to an increase in
average sales price of 22% while sales volume remained flat. (See CITGO Sales
Revenues and Volumes table above.)

Equity in earnings of affiliates. Equity in earnings of affiliates
decreased by approximately $56 million, or 73% from $77 million in 1998 to $21
million in 1999. The decrease was primarily due to the change in the earnings of
LYONDELL-CITGO, CITGO's share of which decreased $58 million, from $59 million
in 1998 to $1 million in 1999. The decrease in LYONDELL-CITGO earnings was due
primarily to reduced processing of extra heavy crude oil as a result of lower
allocations and deliveries and a less favorable mix of extra heavy Venezuelan
crude oil by PDVSA, partially offset by increased processing of spot crude;
costs and lower operating rates related to outages of a coker unit and a fluid
catalytic cracker unit; and a charge related to LYONDELL-CITGO's renegotiated
labor agreement.

Other income (expense). Other income (expense) was $(17) million for
the year ended December 31, 1999 as compared to $(8) million for the same period
in 1998. The difference was primarily due to: (1) a $3

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million gain on the sale of Petro-Chemical Transport in 1998 and (2) in
September 1999, CITGO's interest in the Texas New Mexico Pipeline was sold for a
loss of $(2) million.

Cost of sales and operating expenses. Cost of sales and operating
expenses increased by $2,457 million, or 24%, from 1999 to 1998. (See CITGO Cost
of Sales and Operating Expenses table above.)

CITGO purchases refined products to supplement the production from its
refineries to meet marketing demands and resolve logistical issues. The refined
product purchases represented 61% and 59% of cost of sales for the years 1999
and 1998, respectively. These refined product purchases included purchases from
LYONDELL-CITGO, PDVMR, Chalmette and HOVENSA. CITGO estimates that margins on
purchased products, on average, are lower than margins on produced products due
to the fact that CITGO can only receive the marketing portion of the total
margin received on the produced refined products. However, purchased products
are not segregated from CITGO produced products and margins may vary due to
market conditions and other factors beyond the Company's control. As such, it is
difficult to measure the effects on profitability of changes in volumes of
purchased products. In the near term, other than normal refinery turnaround
maintenance, CITGO does not anticipate operational actions or market conditions
which might cause a material change in anticipated purchased product
requirements; however, there could be events beyond the control of CITGO which
impact the volume of refined products purchased. See also "Factors Affecting
Forward Looking Statements".

As a result of the invocation of the force majeure clause in its crude
oil supply contracts, CITGO estimates that the cost of crude oil purchased in
1999 increased by $55 million from what would have otherwise been the case.

Gross margin. The gross margin for 1999 was $520 million, or 3.9%,
compared to $572 million, or 5.2%, for 1998. In 1999, the revenue per gallon
component increased approximately 22% while the cost per gallon component
increased approximately 23%. As a result, the gross margin decreased
approximately two-tenths of a cent on a per gallon basis in 1999 compared to
1998.

Selling, general and administrative expenses. Selling, general and
administrative expenses decreased $22 million, or 9% in 1999, as a result of
the Company's efforts to reduce such expenses and to a reduction in employee
incentive compensation costs.

Income taxes. CITGO's provision for income taxes in 1999 was $62
million, representing an effective tax rate of 30%. In 1998, CITGO's provision
for income taxes was $103 million, representing an effective tax rate of 35%.
The effective tax rate for the current year is unusually low due to a favorable
resolution in the second quarter of 1999 of a significant tax issue in the last
Internal Revenue Service audit. During the years under audit, deferred taxes
were recorded for certain environmental expenses deducted in the tax returns
pending final determination by the Internal Revenue Service. The deductions
were allowed on audit and, accordingly, the deferred tax liability of
approximately $11 million was reversed with a corresponding benefit to tax
expense.

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21


RESULTS OF OPERATIONS -- 1998 COMPARED TO 1997

Sales revenues and volumes. Sales decreased by $2,679 million,
representing a 20% decrease from 1997 to 1998. This was due to a decrease in
average sales price of 28% partially offset by an increase in sales volumes of
11%. (See CITGO Sales Revenue and Volumes table above.)

Equity in earnings (losses) of affiliates. Equity in earnings of
affiliates increased by approximately $13 million, or 20% from $64 million in
1997 to $77 million in 1998. This increase was due primarily to a $14 million
increase in CITGO's equity in earnings of LYONDELL-CITGO as a result of the
change in CITGO's interest in LYONDELL-CITGO which increased from approximately
13% at December 31, 1996 to approximately 42% on April 1, 1997 and the
improvement in LYONDELL-CITGO's operations since completion of its refinery
enhancement project during the first quarter of 1997 (See Consolidated Financial
Statements of CITGO -- Note 3 in Item 14a).

Cost of sales and operating expenses. Cost of sales and operating
expenses decreased by $2,680 million, or 21% from 1997 to 1998. (See CITGO Cost
of Sales and Operating Expenses table above.)

CITGO purchases refined products to supplement the production from its
refineries to meet marketing demands and resolve logistical issues. The refined
product purchases represented 59% of cost of sales for the years 1998 and 1997.
These refined product purchases included purchases from LYONDELL-CITGO, PDVMR,
Chalmette and HOVENSA. CITGO estimates that margins on purchased products, on
average, are lower than margins on produced products due to the fact that CITGO
can only receive the marketing portion of the total margin received on the
produced refined products. However, purchased products are not segregated from
CITGO produced products and margins may vary due to market conditions and other
factors beyond the Company's control. As such, it is difficult to measure the
effects on profitability of changes in volumes of purchased products. (See also
"Factors Affecting Forward Looking Statements").

Gross margin. The gross margin in 1998 was $572 million, which was
essentially unchanged from 1997. This occurred because a sales volume increase
of approximately 11% was sufficient to offset the 9% erosion of gross margin on
a per gallon basis which included a lower of cost of market adjustment of $159
million.

Selling, general and administrative expenses. Selling, general and
administrative expenses increased $42 million, or 21% in 1998. The increase was
due primarily to salary and related burden allocations as well as increases in
advertising expense and depreciation.

Interest expense. Interest expense decreased $25.6 million from 1997 to
1998. The decrease was primarily due to the decrease in average debt outstanding
related to a decrease in working capital requirements and the deferral of a
significant 1998 excise tax payment. Also the average interest rate decreased
due to a decrease in key rates and replacement of higher rate debt with lower
rate debt.

Income taxes. CITGO's provision for income taxes in 1998 was $103
million, representing an effective tax rate of 35%. In 1997, CITGO's provision
for income taxes was $91 million, representing an effective tax rate of 31%. The
relatively low rate in 1997 was due primarily to the favorable resolution of a
significant tax issue with the Internal Revenue Service in the second quarter of
1997. The resolution resulted in the reduction of a tax accrual previously
established related to this matter. The decrease was partially offset by the
recording of a valuation allowance related to a capital loss carryforward. In
1998 the effective tax rate decreased slightly compared to the 1996 rate due to
a decrease in state taxes.

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22



LIQUIDITY AND CAPITAL RESOURCES

For the year ended December 31, 1999, CITGO's net cash provided by
operating activities totaled approximately $217 million, primarily reflecting
$146 million of net income, $234 million of depreciation and amortization and
the net effect of other items of $(163) million. The more significant changes in
other items included the increase in accounts receivable, including receivables
from affiliates, of approximately $483 million, the increase in inventories of
approximately $234 million, the increase in accounts payable and other current
liabilities, including payables to affiliates, of approximately $457 million and
the increase of other assets of approximately $59 million.

Net cash used in investing activities in 1999 totaled $234 million
consisting primarily of capital expenditures of $227 million and loans to
LYONDELL-CITGO of $25 million.

During the same period, consolidated net cash provided by financing
activities totaled approximately $82 million comprised primarily of $180 million
of proceeds from revolving bank loans, offset by net repayments of other debt of
$83 million and a $15 million dividend paid to PDV America.

CITGO currently estimates that its capital expenditures for the years
2000 through 2004 will total approximately $1.3 billion. These include:


CITGO ESTIMATED CAPITAL EXPENDITURES - 2000 THROUGH 2004 (1)





Strategic $ 598 million
Maintenance 388 million
Regulatory / Environmental 348 million
---------------
Total $ 1,334 million
===============


- ---------------

(1) These estimates may change as future regulatory events unfold. See "Factors
Affecting Forward Looking Statements".

As of December 31, 1999, the company and its subsidiaries had an
aggregate of $1,455 million of indebtedness outstanding that matures on various
dates through the year 2028. As of December 31, 1999, the Company's contractual
commitments to make principal payments on this indebtedness were $47 million,
$47 million and $36 million for 2000, 2001 and 2002, respectively. The Company's
bank credit facility consists of a $400 million, five year, revolving bank loan
and a $150 million, 364 day, revolving bank loan, both of which are unsecured
and have various borrowing maturities, of which $345 million was outstanding at
December 31, 1999. Cit-Con has a separate credit agreement under which $14
million was outstanding at December 31, 1999. The Company's other principal
indebtedness consists of (i) $200 million in senior notes issued in 1996, (ii)
$260 million in senior notes issued pursuant to a master shelf agreement with an
insurance company, (iii) $137 million in senior notes issued in 1991, (iv) $306
million in obligations related to tax exempt bonds issued by various
governmental units, and (v) $178 million in obligations related to taxable bonds
issued by a governmental unit. (See Consolidated Financial Statements of CITGO
- -- Note 9 and 10 in Item 14a.)

As of December 31, 1999, capital resources available to CITGO included
cash provided by operations, available borrowing capacity of $205 million under
CITGO's revolving credit facility and $184 million in unused availability under
uncommitted short-term borrowing facilities with various banks. Additionally,
the remaining $400 million from CITGO's shelf registration with the Securities
and Exchange Commission for $600 million of debt securities may be offered and
sold from time to time. CITGO believes that it has sufficient capital resources
to carry out planned capital spending programs, including regulatory

20

23


and environmental projects in the near term, and to meet currently anticipated
future obligations as they arise. CITGO periodically evaluates other sources of
capital in the marketplace and anticipates long-term capital requirements will
be satisfied with current capital resources and future financing arrangements,
including the issuance of debt securities. The Company's ability to obtain such
financing will depend on numerous factors, including market conditions and the
perceived creditworthiness of the Company at that time. See "Factors Affecting
Forward Looking Statements".

CITGO's debt instruments impose restrictions on CITGO's ability to
incur additional debt, place liens on property, sell or acquire fixed assets,
and make restricted payments, including dividends.

CITGO is a member of the PDV Holding, Inc. consolidated Federal income
tax return. CITGO has a tax allocation agreement with PDV America, which is
designed to provide PDV America with sufficient cash to pay its consolidated
income tax liabilities. (See Consolidated Financial Statements of CITGO -- Note
1 and Note 4 in Item 14a).

NEW ACCOUNTING STANDARD

In June 1998, the Financial Accounting Standards Board issued Statement
of Financial Accounting Standards No. 133, "Accounting for Derivative
Instruments and Hedging Activities" ("SFAS No. 133"). The statement establishes
accounting and reporting standards for derivative instruments and for hedging
activities. It requires that an entity recognize all derivatives, at fair value,
as either assets or liabilities in the statement of financial position with an
offset either to shareholder's equity and comprehensive income or income
depending upon the classification of the derivative. The company has not
determined the impact on its financial statements that may result from adoption
of SFAS No. 133, which is required no later than January 1, 2001.

IMPENDING ACCOUNTING CHANGE

The Securities and Exchange Commission ("SEC") has recently indicated
that they intend to issue a summary of their views regarding accounting for
planned major maintenance activities (See Consolidated Financial Statements of
CITGO - Note 1 in Item 14a). Such summary is expected, in part, to defer the
issuance of guidance related to certain aspects of accounting for major
maintenance activities pending completion of a project dealing with a cost
capitalization that will be conducted by the Accounting Standards Executive
Committee ("AcSEC") of the American Institute of Certified Public Accountants.
At December 31, 1999 CITGO had capitalized approximately $80 million of such
costs, all or a portion of which may be required to be written off through an
immediate charge to income as a result of the SEC and/or AcSEC conclusions.
Pending issuance of the SEC summary, CITGO plans to continue its policy of
deferring and amortizing such costs.

YEAR 2000 READINESS

The inability of computers, software and other equipment using
microprocessors to recognize and properly process data fields containing a
two-digit year is commonly referred to as the Year 2000 issue. Such systems may
be unable to accurately process certain date-based information. To mitigate any
adverse impact this may cause, CITGO established a company wide Year 2000
Project to address the issue of computer programs and embedded computer chips
which may be unable to correctly function with the Year 2000. In addition, CITGO
updated major elements of its information systems by implementing programs
purchased from Systems, Applications and Products in Data Processing ("SAP").
The first phase of SAP implementation, which included the financial reporting
and materials management modules, was brought into production on January 1,
1998. Additional SAP modules including plant maintenance work order and cost
tracking were implemented throughout 1998. The light oils product scheduling,
inventory and billing module and the human resources module were brought into
production on June 1 and July 1, 1999, respectively. The total cost of the SAP
implementation was approximately $125 million, which included software,
hardware, reengineering and change management. Management has determined that
SAP is an appropriate solution to the Year 2000 issue related to the systems for
which SAP was implemented. Such systems comprise approximately 80 percent of
CITGO's total information systems. Remaining business software systems were made
Year 2000 ready through the Year 2000 Project or they were replaced.

The Company did not experience any significant business disruptions or
malfunctions in its operating or business systems during the transition from
1999 to 2000. Based on operations since January 1, 2000, the Company does not
expect any significant impact to its ongoing business as a result of Year 2000
issues. It is possible, however, that the full impact of the date transition has
not been fully recognized. For example, it is possible that date-related issues
such as quarterly or year-end processing problems may occur. The Company
believes that any such problems are likely to be minor and correctable. In
addition, the Company could still be negatively affected if its customers or
suppliers are adversely affected

21

24

by similar date-related issues. The Company is currently not aware of any
significant Year 2000 or similar problems that have arisen for its customers and
suppliers.

Excluding SAP implementation, the Company expended $15 million on Year
2000 readiness efforts through year-end 1999. These expenditures included
identifying and remediating potential Year 2000 problems, and the associated
program administration and labor costs incurred.


ITEM 7 A. QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK

Introduction. CITGO has exposure to price fluctuations of crude oil and
refined products as well as fluctuations in interest rates. To manage these
exposures, management has defined certain benchmarks consistent with its
preferred risk profile for the environment in which the Company operates and
finances its assets. CITGO does not attempt to manage the price risk related to
all of its inventories of crude oil and refined products. As a result, at
December 31, 1999, CITGO was exposed to the risk of broad market price declines
with respect to a substantial portion of its crude oil and refined product
inventories. The following disclosures do not attempt to quantify the price risk
associated with such commodity inventories.

Commodity Instruments. CITGO balances its crude oil and petroleum
product supply / demand and manages a portion of its price risk by entering into
petroleum commodity derivatives. Generally, CITGO's risk management strategies
qualify as hedges, however, certain strategies that CITGO may use on commodity
positions do not qualify as hedges.

NON TRADING COMMODITY DERIVATIVES
OPEN POSITIONS AT DECEMBER 31, 1999




MATURITY NUMBER OF CONTRACT MARKET
COMMODITY DERIVATIVE DATE CONTRACTS VALUE (2) VALUE
--------- ---------- -------- --------- --------- ------
($ in millions)

No Lead Gasoline (1) Futures Purchased 2000 60 $ 1.7 $ 1.7
Futures Sold 2000 225 $ 6.1 $ 6.4
Swaps 2000 300 $ 8.1 $ 7.8


Heating Oil (1) Futures Purchased 2000 217 $ 5.7 $ 6.0
Futures Purchased 2001 6 $ 0.1 $ 0.1
Futures Sold 2000 450 $ 12.5 $ 12.8
Swaps 2000 336 $ 7.7 $ 7.7


Crude Oil (1) Swaps 2000 600 $ 13.4 $ 14.3


Natural Gas (3) Futures Purchased 2000 6 $ 0.1 $ 0.1


- ------------------------

(1) 1,000 barrels per contract
(2) Weighted average price
(3) 10,000 mmbtu per contract


NON TRADING COMMODITY DERIVATIVES
OPEN POSITIONS ON DECEMBER 31, 1998





MATURITY NUMBER OF CONTRACT MARKET
COMMODITY DERIVATIVE DATE CONTRACTS VALUE(2) VALUE
- --------- ---------- -------- --------- --------- -------
($ in millions)


No Lead Gasoline (1) Futures Purchased 1999 500 $ 8.0 $ 8.0



Heating Oil (1) Futures Purchased 1999 371 $ 7.0 $ 6.0
Futures Sold 1999 110 $ 2.0 $ 2.0

- --------------------
(1) 1,000 barrels per contract
(2) Weighted average price


Debt Related Instruments. CITGO has fixed and floating U.S. currency
denominated debt. CITGO uses interest rate swaps to manage its debt portfolio
toward a benchmark of 40 to 60 percent fixed rate debt to total fixed and
floating rate debt. These instruments have the effect of changing the interest
rate with the

22

25



objective of minimizing CITGO's long-term costs. At December 31, 1999, CITGO's
primary exposures were to U.S. dollar, LIBOR and U.S. Treasury rates.

For interest rate swaps, the table below presents notional amounts and
interest rates by expected (contractual) maturity dates. Notional amounts are
used to calculate the contractual payments to be exchanged under the contracts.

NON TRADING INTEREST RATE DERIVATIVES
OPEN POSITIONS AT DECEMBER 31, 1999 AND 1998




NOTIONAL
FIXED PRINCIPAL
VARIABLE RATE INDEX EXPIRATION DATE RATE PAID AMOUNT
- ------------------- --------------- --------- ------
($ in millions)

One-month LIBOR May 2000 6.28% $ 25
J.J. Kenny May 2000 4.72% 25
J.J. Kenny February 2005 5.30% 12
J.J. Kenny February 2005 5.27% 15
J.J. Kenny February 2005 5.49% 15
----------
$ 92
==========


The fair value of the interest rate swap agreements in place at
December 31, 1999, based on the estimated amount that CITGO would receive or pay
to terminate the agreements as of that date and taking into account current
interest rates, was an unrealized loss of $1.3 million.

For debt obligations, the table below presents principal cash flows and
related weighted average interest rates by expected maturity dates. Weighted
average variable rates are based on implied forward rates in the yield curve at
the reporting date.

DEBT OBLIGATIONS
AT DECEMBER 31, 1999




EXPECTED
EXPECTED FIXED AVERAGE FIXED VARIABLE AVERAGE VARIABLE
MATURITIES RATE DEBT INTEREST RATE RATE DEBT INTEREST RATE
---------- --------- ------------- --------- ----------------
($ in millions) ($ in millions)

2000 $ 40 9.11% $ 23 5.72%
2001 40 9.11% 7 6.11%
2002 36 8.78% -- 6.22%
2003 61 8.79% 345 6.25%
2004 31 8.02% 16 6.29%
Thereafter 391 8.02% 465 6.41%
------- ---- -------- ----
Total $ 599 8.29% $ 856 6.32%
======= ==== ======== ====
Fair Value $ 582 $ 856
========



DEBT OBLIGATIONS
AT DECEMBER 31, 1998



EXPECTED
EXPECTED FIXED AVERAGE FIXED VARIABLE AVERAGE VARIABLE
MATURITIES RATE DEBT INTEREST RATE RATE DEBT INTEREST RATE
---------- --------- ------------- --------- -----------------
($ in millions) ($ in millions)

1999 $ 40 9.11% $ 44 5.01%
2000 40 9.11% 7 5.09%
2001 40 9.11% 7 5.23%
2002 36 8.78% -- --
2003 61 8.79% 165 5.44%
Thereafter 422 8.02% 481 6.00%
------- ---- -------- ----
Total $ 639 8.34% $ 704 5.79%
======= ==== ======== ====
Fair Value $ 625 $ 704
======= ========













23

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ITEM 8. FINANCIAL STATEMENTS AND SUPPLEMENTARY DATA

The Consolidated Financial Statements, the Notes to Consolidated
Financial Statements and the Independent Auditors' Report are included in Item
14a of this report. The Quarterly results of Operations are reported in Note 16
of the Notes to Consolidated Financial Statements included in Item 14a.

ITEM 9. CHANGES IN AND DISAGREEMENTS WITH ACCOUNTANTS ON ACCOUNTING AND
FINANCIAL DISCLOSURE

None.

PART III

ITEM 10. DIRECTORS AND EXECUTIVE OFFICERS OF THE REGISTRANT

The registrant meets the conditions set forth in General Instructions
(I)(1)(a) and (b) of Form 10-K and is therefore omitting certain information
otherwise required by Item 10 of Form 10-K relating to Directors and Executive
Officers as permitted by General Instruction (I)(2)(c).

ITEM 11. EXECUTIVE COMPENSATION

The registrant meets the conditions set forth in General Instructions
(I)(1)(a) and (b) of Form 10-K and is therefore omitting certain information
otherwise required by Item 11 of Form 10-K relating to executive compensation as
permitted by General Instruction (I)(2)(c).

ITEM 12. SECURITY OWNERSHIP OF CERTAIN BENEFICIAL OWNERS AND MANAGEMENT

Not applicable.

ITEM 13. CERTAIN RELATIONSHIPS AND RELATED TRANSACTIONS

The majority of the Board of Directors of CITGO are also directors or
executive officers of PDVSA.

CITGO has entered into several transactions with PDVSA or other
affiliates of PDVSA, including crude oil and feedstock supply agreements,
agreements for the purchase of refined products and transportation agreements.
Under these agreements, CITGO purchased approximately $1.7 billion of crude oil,
feedstocks and refined products at market related prices from PDVSA in 1999. At
December 31, 1999, $178 million was included in CITGO's current payable to
affiliates as a result of its transactions with PDVSA. (See "Items 1. and 2.
Business and Properties -- Crude Oil and Refined Product Purchases").

LYONDELL-CITGO owns and operates a 265 MBPD refinery in Houston, Texas.
LYONDELL-CITGO was formed in 1993 by subsidiaries of CITGO and Lyondell,
referred to as the owners. CITGO contributed cash during the years 1993 through
1997 for a participation interest and other commitments related to
LYONDELL-CITGO's refinery enhancement project, and Lyondell contributed the
Houston refinery and related assets for the remaining participation interest.
The refinery enhancement project to increase the refinery's heavy crude oil high
conversion capacity was substantially completed at the end of 1996 with an
in-service date of March 1, 1997. The heavy crude oil processed by the Houston
refinery is supplied by PDVSA under a long-term crude oil supply agreement
through the year 2017. Under this agreement, LYONDELL-CITGO purchased
approximately $0.8 billion of crude oil and feedstocks at market related
prices from PDVSA in 1999. CITGO purchases substantially all of the gasoline,
diesel and jet fuel produced at the Houston refinery under a long-term contract.
(See Consolidated Financial Statements of CITGO -- Notes 3 and 4 in Item 14a).

24

27


CITGO's participation interest in LYONDELL-CITGO was approximately 41%
at December 31, 1999, in accordance with agreements between the owners
concerning such interest. CITGO has a one-time option exercisable after January
1, 2000 but before September 30, 2000, to increase, for an additional
investment, its participation interest to 50%.

CITGO loaned $24.6 million and $19.8 million to LYONDELL-CITGO during
1999 and 1998, respectively. The notes bear interest at market rates which were
approximately 6.7% at December 31, 1999 and 1998, and are due July 1, 2003.
Effective December 31, 1999, CITGO converted $32.7 million of these notes to
investments in LYONDELL-CITGO.

LYONDELL-CITGO has a $450 million credit facility that is due on May 5,
2000. The Owners are currently reviewing financing alternatives to address this
situation. However, there is no agreement on a definitive plan to replace this
facility and LYONDELL-CITGO does not have the funds available to repay the
facility when it becomes due. As a result of this circumstance, CITGO management
conducted a review to determine if its ability to realize the carrying value of
its investment in LYONDELL-CITGO has been impaired. Based upon this review,
CITGO management has determined that no such impairment has occurred.

CITGO accounts for its investment in LYONDELL-CITGO using the equity
method of accounting and records its share of the net earnings of LYONDELL-CITGO
based on allocations of income agreed to by the owners.

On May 1, 1997, PDV America and Union Oil Company of California
("Unocal") closed a transaction relating to The UNO-VEN Company ("UNO-VEN"). The
transaction transferred certain assets and liabilities to PDVMR, a subsidiary of
PDV America, in liquidation of PDV America's 50% ownership interest in UNO-VEN.
The assets include a refinery in Lemont, Illinois, as well as product
distribution terminals located in the Midwest. CITGO operates these facilities
and purchases the products produced at the refinery (See Consolidated Financial
Statements of CITGO -- Note 2 in Item 14a). A portion of the crude oil processed
by PDVMR is supplied by PDVSA under a long-term crude supply contract.

An affiliate of PDVSA acquired a 50% equity interest in Chalmette in
October 1997 and has assigned to CITGO its option to purchase up to 50% of the
refined products produced at the refinery through December 31, 2000 (See
Consolidated Financial Statements of CITGO -- Note 2 in Item 14a). CITGO
acquired approximately 66 MBPD of refined products from the refinery during
1999, approximately one-half of which was gasoline.

In October 1998 an affiliate of PDVSA acquired a 50% equity interest in
HOVENSA and has the right under a product sales agreement to assign periodically
to CITGO, or other related parties, its option to purchase 50% of the refined
products produced by HOVENSA (less a certain portion of such products that
HOVENSA will market directly in the local and Caribbean markets). In addition,
under the product sales agreement, the PDVSA affiliate has appointed CITGO as
its agent in designating which of its affiliates shall from time to time take
deliveries of the refined products available to it. The product sales agreement
will be in effect for the life of the joint venture, subject to termination
events based on default or mutual agreement (See Consolidated Financial
Statements of CITGO -- Note 2 in Item 14a). Pursuant to the above arrangement,
CITGO acquired approximately 118 MBPD of refined products from the refinery
during 1999, approximately one-half of which was gasoline.

The purchase agreements with LYONDELL-CITGO, PDVMR, Chalmette and
HOVENSA incorporate various formula prices based on published market prices and
other factors. Such purchases totaled $4.3 and $2.9 billion for 1999 and 1998,
respectively. At December 31, 1999 and 1998, $196 and $64 million, respectively,
were included in payables to affiliates as a result of these transactions.

25
28


CITGO had refined product, feedstock, crude oil and other product sales
of $190 and $164 million to affiliates, including LYONDELL-CITGO and MVPPP, in
1999 and 1998, respectively. At December 31, 1999 and 1998, $38 million and $34
million, respectively, were included in Due from affiliates as a result of these
transactions.

CITGO has guaranteed approximately $101 million of debt of certain
affiliates, including $50 million related to HOVENSA and $11 million related to
Nelson Industrial Steam Company. (See Consolidated Financial Statements of CITGO
- -- Note 13 in Item 14a.)

Under a separate guarantee of rent agreement, PDVSA has guaranteed
payment of rent, stipulated loss value and termination value due under the lease
of the Corpus Christi Refinery West Plant facilities. (See Consolidated
Financial Statements of CITGO -- Note 14 in Item 14a.)

The Company and PDV America are parties to a tax allocation agreement
that is designed to provide PDV America with sufficient cash to pay its
consolidated income tax liabilities. In 1997, $10 million due from PDV America
to CITGO under this tax allocation agreement for the 1996 tax year was
classified as a noncash dividend. In 1998, $8 million due from CITGO to PDV
America under this agreement for the 1997 tax year was classified as a noncash
contribution of capital. In 1999, $11 million due from PDV America to CITGO
under this agreement for the 1998 tax year was classified as a noncash dividend.
In the event that CITGO should cease to be part of the consolidated federal
income tax return, any amounts included in shareholder's equity under this
agreement are required to be settled between the parties in cash. At December
31, 1999, CITGO has income taxes payable of $24 million included in other
current liabilities. At December 31, 1998, CITGO had income taxes receivable of
$12 million included in prepaid expenses and a $5 million receivable from PDV
America included in due from affiliates.


PART IV

ITEM 14. EXHIBITS, FINANCIAL STATEMENTS AND REPORTS ON FORM 8-K

a. CERTAIN DOCUMENTS FILED AS PART OF THIS REPORT

(1) Financial Statements:



Page
----

Independent Auditors' Report F-1
Consolidated Balance Sheets at December 31, 1999 and 1998 F-2
Consolidated Statements of Income and Comprehensive Income for
the years ended December 31, 1999, 1998 and 1997 F-3
Consolidated Statements of Shareholder's Equity for the years
ended December 31, 1999, 1998 and 1997 F-4
Consolidated Statements of Cash Flows for the years ended
December 31, 1999, 1998 and 1997 F-5
Notes to Consolidated Financial Statements F-7


(2) Exhibits:

The Exhibit Index in part c. below lists the exhibits that are filed as
part of, or incorporated by reference into, this report.

b. REPORTS ON FORM 8-K

NONE.

26

29


c. EXHIBITS

Exhibit
Number
- -------

*3.1 Certificate of Incorporation, Certificate of Amendment of
Certificate of Incorporation and By-laws of CITGO Petroleum
Corporation.

*4.1 Indenture, dated as of May 1, 1996, between CITGO Petroleum
Corporation and the First National Bank of Chicago, relating
to the 7 7/8% Senior Notes due 2006 of CITGO Petroleum
Corporation.

*4.2 Form of Senior Note (included in Exhibit 4.1).

**10.1 Crude Supply Agreement between CITGO Petroleum Corporation and
Petroleos de Venezuela, S.A., dated as of September 30, 1986.

**10.2 Supplemental Crude Supply Agreement dated as of September 30,
1986 between CITGO Petroleum Corporation and Petroleos de
Venezuela, S.A.

**10.3 Crude Oil and Feedstock Supply Agreement dated as of March 31,
1987 between Champlin Refining Company and Petroleos de
Venezuela, S.A.

**10.4 Supplemental Crude Oil and Feedstock Supply Agreement dated as
of March 31, 1987 between Champlin Refining Company and
Petroleos de Venezuela, S.A.

**10.5 Contract for the Purchase/Sale of Boscan Crude Oil dated as of
June 2, 1993 between Tradecal, S.A. and CITGO Asphalt Refining
Company.

**10.6 Restated Contract for the Purchase/Sale of Heavy/Extra Heavy
Crude Oil dated December 28, 1990 among Maraven, S.A.,
Lagoven, S.A. and Seaview Oil Company.

**10.7 Sublease Agreement dated as of March 31, 1987 between Champlin
Petroleum Company, Sublessor, and Champlin Refining Company,
Sublessee.

**10.8 Operating Agreement dated as of May 1, 1984 among Cit-Con Oil
Corporation, CITGO Petroleum Corporation and Conoco, Inc.

**10.9 Amended and Restated Limited Liability Company Regulations of
LYONDELL-CITGO Refining Company, Ltd., dated July 1, 1993.

**10.10 Contribution Agreement between Lyondell Petrochemical Company
and LYONDELL-CITGO Refining Company, Ltd. and Petroleos de
Venezuela, S.A.

**10.11 Crude Oil Supply Agreement between LYONDELL-CITGO Refining
Company, Ltd. and Lagoven, S.A. dated as of May 5, 1993.

**10.12 Supplemental Supply Agreement dated as of May 5, 1993 between
LYONDELL-CITGO Refining Company, Ltd. and Petroleos de
Venezuela, S.A.

**10.13 Tax Allocation Agreement dated as of June 24, 1993 among PDV
America, Inc., VPHI Midwest, Inc., CITGO Petroleum Corporation
and PDV USA, Inc., as amended.

**10.14 CITGO Credit Facility.

*10.15(i) First Amendment to the Second Amended and Restated Senior Term
Loan Agreement, by and between CITGO Petroleum Corporation and
Bank of America National Trust and Savings Association et al,
dated as of February 15, 1994.


27

30


*10.15(ii) Second Amendment to Second Amended and Restated Senior Term
Loan Agreement by and among CITGO Petroleum Corporation and
Bank of America Illinois et al, dated as of October 21, 1994.

*10.15(iii) First Amendment to the Second Amended and Restated Senior
Revolving Credit Facility Agreement by and among CITGO
Petroleum Corporation and Bank of America National Trust and
Savings Association et al, dated as of February 15, 1994.

*10.15(iv) Second Amendment to Second Amended and Restated Senior
Revolving Credit Facility Agreement by and among CITGO
Petroleum Corporation and Bank of America Illinois et al,
dated as of October 21, 1994.

*10.16 Master Shelf Agreement (1994) by and between Prudential
Insurance Company of America and CITGO Petroleum Corporation
($100,000,000), dated March 4, 1994.

*10.17(i) Letter Agreement by and between the Company and Prudential
Insurance Company of America, dated March 4, 1994.

*10.17(ii) Letter Amendment No. 1 to Master Shelf Agreement with
Prudential Insurance company of America, dated November 14,
1994.

**10.18 CITGO Senior Debt Securities (1991) Agreement.

*10.19 CITCON Credit Agreement between CITCON Oil Corporation and The
Chase Manhattan Bank N.A., as Agent, dated as of April 30,
1992.

*10.20(i) First Amendment to the CITCON Credit Agreement, between CITCON
Oil Corporation and The Chase Manhattan Bank (National
Association), dated as of June 30, 1992.

*10.20(ii) Second Amendment to the CITCON Credit Agreement, between
CITCON Oil Corporation and The Chase Manhattan Bank (National
Association), dated as of March 31, 1994.

*10.20(iii) Third Amendment to the CITCON Credit Agreement, between CITCON
Oil Corporation and The Chase Manhattan Bank (National
Association), dated as of June 10, 1994.

***10.21 Selling Agency Agreement dated as of October 28, 1997 among
CITGO Petroleum Corporation, Salomon Brothers Inc. and Chase
Securities Inc.

****10.22 $150,000,000 Credit Agreement dated May 13, 1998.

****10.23 $400,000,000 Credit Agreement dated May 13, 1998.

****10.24 Limited Partnership Agreement of LYONDELL-CITGO Refining LP,
dated December 31, 1998.

12.1 Computation of Ratio of Earnings to Fixed Charges.

23.1 Consent of Independent Auditors.

27 Financial Data Schedule (filed electronically only).
- -------------
* Previously filed in connection with the Registrant's Report on Form 10,
Registration No. 333-3226.

** Incorporated by reference to the Registration Statement on Form F-1 of
PDV America, Inc. (No. 33-63742).

*** Incorporated by reference to the Registrant's Report on Form 8-K filed
with the Commission on November 18, 1997.

**** Incorporated by reference to the Registrant's Report on Form 10-K filed
with the Commission on March 17, 1999.

28

31


SIGNATURES

Pursuant to the requirements of Section 13 or 15(d) of the Securities Exchange
Act of 1934, the Registrant has duly caused this report to be signed on its
behalf by the undersigned, thereunto duly authorized.


CITGO PETROLEUM CORPORATION


/s/ R. M. Bright
-------------------------------------
R. M. Bright
Controller (Chief Accounting Officer)

Date: March 24, 2000


Pursuant to the requirements of the Securities Exchange Act of 1934, this report
has been signed below by the following persons on behalf of the Registrant in
the capacities and on the dates indicated.




Signatures Title Date
---------- ----- ----

By /s/ CARLOS JORDA Chairman of the Board and March 24, 2000
------------------------------------------ Director
Carlos Jorda


By /s/ AIRES BARRETO Director March 24, 2000
------------------------------------------
Aires Barreto


By /s/ ALEX CARDENAS Director March 24, 2000
------------------------------------------
Alex Cardenas


By /s/ LUIS CENTENO Director March 24, 2000
------------------------------------------
Luis Centeno


By /s/ DAVID J. TIPPECONNIC President, Chief Executive March 24, 2000
------------------------------------------ Officer and Director
David J. Tippeconnic


By /s/ EZRA C. HUNT Senior Vice President and March 24, 2000
------------------------------------------ Chief Financial Officer
Ezra C. Hunt


29

32





INDEPENDENT AUDITORS' REPORT


To the Board of Directors and Shareholder of
CITGO Petroleum Corporation:

We have audited the accompanying consolidated balance sheets of CITGO Petroleum
Corporation and subsidiaries as of December 31, 1999 and 1998, and the related
consolidated statements of income and comprehensive income, shareholder's equity
and cash flows for each of the three years in the period ended December 31,
1999. These financial statements are the responsibility of the Company's
management. Our responsibility is to express an opinion on these financial
statements based on our audits.

We conducted our audits in accordance with generally accepted auditing
standards. Those standards require that we plan and perform the audit to obtain
reasonable assurance about whether the financial statements are free of material
misstatement. An audit includes examining, on a test basis, evidence supporting
the amounts and disclosures in the financial statements. An audit also includes
assessing the accounting principles used and significant estimates made by
management, as well as evaluating the overall financial statement presentation.
We believe that our audits provide a reasonable basis for our opinion.

In our opinion, such consolidated financial statements present fairly, in all
material respects, the financial position of CITGO Petroleum Corporation and
subsidiaries at December 31, 1999 and 1998, and the results of their operations
and their cash flows for each of the three years in the period ended December
31, 1999 in conformity with generally accepted accounting principles.



Deloitte & Touche LLP

Tulsa, Oklahoma
February 11, 2000




F-1
33



CITGO PETROLEUM CORPORATION

CONSOLIDATED BALANCE SHEETS
(DOLLARS IN THOUSANDS)
- --------------------------------------------------------------------------------



DECEMBER 31,
-------------------------------
1999 1998

ASSETS

CURRENT ASSETS:
Cash and cash equivalents $ 95,780 $ 30,338
Accounts receivable, net 1,004,268 540,501
Due from affiliates 37,860 33,780
Inventories 953,153 719,625
Deferred income taxes -- 65,234
Prepaid expenses and other 7,136 18,317
------------- -------------
Total current assets 2,098,197 1,407,795

PROPERTY, PLANT AND EQUIPMENT - Net 2,877,305 2,860,427

RESTRICTED CASH 3,015 9,436

INVESTMENTS IN AFFILIATES 734,822 781,481

OTHER ASSETS 193,946 195,113
------------- -------------

$ 5,907,285 $ 5,254,252
============= =============

LIABILITIES AND SHAREHOLDER'S EQUITY

CURRENT LIABILITIES:
Short-term bank loans $ 16,000 $ 37,000
Accounts payable 632,295 384,532
Payables to affiliates 381,404 141,607
Taxes other than income 218,503 219,642
Other 192,579 209,327
Current portion of long-term debt 47,078 47,078
Current portion of capital lease obligation 16,356 14,660
------------- -------------
Total current liabilities 1,504,215 1,053,846

LONG-TERM DEBT 1,392,222 1,259,270

CAPITAL LEASE OBLIGATION 85,570 101,926

POSTRETIREMENT BENEFITS OTHER THAN PENSIONS 212,871 200,281

OTHER NONCURRENT LIABILITIES 197,024 219,466

DEFERRED INCOME TAXES 521,751 543,464

MINORITY INTEREST 29,710 29,559

COMMITMENTS AND CONTINGENCIES (NOTE 13)

SHAREHOLDER'S EQUITY:
Common stock - $1.00 par value, 1,000 shares authorized, issued and outstanding 1 1
Additional capital 1,312,616 1,312,616
Retained earnings 654,519 533,823
Accumulated other comprehensive income (3,214) --
------------- -------------
Total shareholder's equity 1,963,922 1,846,440
------------- -------------

$ 5,907,285 $ 5,254,252
============= =============



See notes to consolidated financial statements.





F-2
34



CITGO PETROLEUM CORPORATION

CONSOLIDATED STATEMENTS OF INCOME AND COMPREHENSIVE INCOME
EACH OF THE THREE YEARS IN THE PERIOD ENDED DECEMBER 31, 1999
(DOLLARS IN THOUSANDS)
- --------------------------------------------------------------------------------



1999 1998 1997

REVENUES:
Net sales $ 13,127,443 $ 10,747,577 $ 13,369,808
Sales to affiliates 189,778 164,144 221,495
------------- ------------- -------------
13,317,221 10,911,721 13,591,303

Equity in earnings (losses) of affiliates 21,348 77,105 64,460
Other income (expense), net (16,511) (8,185) (10,535)
------------- ------------- -------------
13,322,058 10,980,641 13,645,228
------------- ------------- -------------

COST OF SALES AND EXPENSES:
Cost of sales and operating expenses (including
purchases of $5,947,449, $4,318,958 and
$4,791,307 from affiliates) 12,796,596 10,340,219 13,019,754
Selling, general and administrative expenses 220,489 242,496 200,777
Interest expense, excluding capital lease 83,933 85,691 109,895
Capital lease interest charge 12,715 14,235 15,597
Minority interest 151 1,223 1,706
------------- ------------- -------------
13,113,884 10,683,864 13,347,729
------------- ------------- -------------

INCOME BEFORE INCOME TAXES 208,174 296,777 297,499

INCOME TAXES 61,690 102,787 90,955
------------- ------------- -------------

NET INCOME 146,484 193,990 206,544

OTHER COMPREHENSIVE INCOME -
Minimum pension liability adjustment, net of deferred
tax benefit of $2,012 (3,214) -- --
------------- ------------- -------------

COMPREHENSIVE INCOME $ 143,270 $ 193,990 $ 206,544
============= ============= =============



See notes to consolidated financial statements.






F-3
35


CITGO PETROLEUM CORPORATION

CONSOLIDATED STATEMENTS OF SHAREHOLDER'S EQUITY
EACH OF THE THREE YEARS IN THE PERIOD ENDED DECEMBER 31, 1999
(AMOUNTS IN THOUSANDS)
- --------------------------------------------------------------------------------



Accumulated
Common Stock Other Total
-------------- Additional Retained Comprehensive Shareholder's
Shares Amount Capital Earnings Income Equity


BALANCE, JANUARY 1, 1997 1 $ 1 $ 1,235,009 $ 635,326 $ -- $ 1,870,336

Net income -- -- -- 206,544 -- 206,544

Capital contributions received -- -- 20,000 -- -- 20,000

Noncash dividend paid -- -- -- (10,037) -- (10,037)

Dividend paid -- -- -- (6,000) (6,000)
----- ----- ----------- ----------- ----------- -----------

BALANCE, DECEMBER 31, 1997 1 1 1,255,009 825,833 -- 2,080,843

Net income -- -- -- 193,990 -- 193,990

Capital contributions received -- -- 50,000 -- -- 50,000

Noncash capital contributions
received -- -- 7,607 -- -- 7,607

Dividends paid -- -- -- (486,000) -- (486,000)
----- ----- ----------- ----------- ----------- -----------

BALANCE, DECEMBER 31, 1998 1 1 1,312,616 533,823 -- 1,846,440

Net income -- -- -- 146,484 -- 146,484

Other comprehensive income -
Minimum pension
liability adjustment -- -- -- -- (3,214) (3,214)

Noncash dividend paid -- -- -- (10,788) -- (10,788)

Dividend paid -- -- -- (15,000) -- (15,000)
----- ----- ----------- ----------- ----------- -----------

BALANCE, DECEMBER 31, 1999 1 $ 1 $ 1,312,616 $ 654,519 $ (3,214) $ 1,963,922
===== ===== =========== =========== =========== ===========



See notes to consolidated financial statements.






F-4
36



CITGO PETROLEUM CORPORATION

CONSOLIDATED STATEMENTS OF CASH FLOWS
EACH OF THE THREE YEARS IN THE PERIOD ENDED DECEMBER 31, 1999
(DOLLARS IN THOUSANDS)
- --------------------------------------------------------------------------------



1999 1998 1997

CASH FLOWS FROM OPERATING ACTIVITIES:
Net income $ 146,484 $ 193,990 $ 206,544
Adjustments to reconcile net income to net cash provided by
operating activities:
Depreciation and amortization 233,747 222,191 210,790
Provision for losses on accounts receivable 15,110 13,826 17,827
Loss (gain) on sale of investments 1,616 (2,590) --
Deferred income taxes 49,349 59,421 60,617
Distributions in excess of equity in earnings of affiliates 80,660 44,939 27,282
Inventory adjustment to market -- 159,000 --
Other adjustments 12,662 2,062 7,997
Changes in operating assets and liabilities:
Accounts receivable and due from affiliates (482,957) 93,611 332,240
Inventories (233,528) (21,216) (24,407)
Prepaid expenses and other current assets 11,182 (10,481) 4,477
Accounts payable and other current liabilities 456,568 (126,290) (148,608)
Other assets (58,759) (51,879) (74,709)
Other liabilities (14,931) 6,910 27,158
----------- ----------- -----------
Total adjustments 70,719 389,504 440,664
----------- ----------- -----------
Net cash provided by operating activities 217,203 583,494 647,208
----------- ----------- -----------

CASH FLOWS FROM INVESTING ACTIVITIES:
Capital expenditures (227,167) (199,988) (243,875)
Proceeds from sales of property, plant and equipment 10,524 3,432 12,295
Decrease (increase) in restricted cash 6,421 (2,516) 2,449
Investments in LYONDELL-CITGO Refining LP -- -- (45,635)
Loans to LYONDELL-CITGO Refining LP (24,600) (19,800) (16,509)
Proceeds from sale of investments 4,980 7,160 --
Investments in and advances to other affiliates (4,212) (3,247) (2,442)
----------- ----------- -----------
Net cash used in investing activities (234,054) (214,959) (293,717)
----------- ----------- -----------

CASH FLOWS FROM FINANCING ACTIVITIES:
Net (repayments of) proceeds from short-term bank loans (21,000) 34,000 (50,000)
Net proceeds from (repayments of) revolving bank loans 180,000 30,000 (215,000)
Payments on term bank loan -- (58,823) (29,412)
Payments on private placement senior notes (39,935) (58,686) (58,685)
(Payments on) proceeds from taxable bonds (25,000) 100,000 --
Proceeds from issuance of tax-exempt bonds 25,000 47,200 --
Payments of capital lease obligations (14,660) (13,140) (11,778)
Repayments of other debt (7,112) (7,111) (5,109)
Capital contributions received -- 50,000 20,000
Dividends paid (15,000) (486,000) (6,000)
----------- ----------- -----------
Net cash provided by (used in) financing activities 82,293 (362,560) (355,984)
----------- ----------- -----------

(Continued)








F-5
37



CITGO PETROLEUM CORPORATION

CONSOLIDATED STATEMENTS OF CASH FLOWS
EACH OF THE THREE YEARS IN THE PERIOD ENDED DECEMBER 31, 1999
(DOLLARS IN THOUSANDS)
- --------------------------------------------------------------------------------



1999 1998 1997


INCREASE (DECREASE) IN CASH AND CASH EQUIVALENTS $ 65,442 $ 5,975 $ (2,493)

CASH AND CASH EQUIVALENTS, BEGINNING OF PERIOD 30,338 24,363 26,856
----------- ----------- -----------

CASH AND CASH EQUIVALENTS, END OF PERIOD $ 95,780 $ 30,338 $ 24,363
=========== =========== ===========

SUPPLEMENTAL DISCLOSURE OF CASH FLOW
INFORMATION:
Cash paid during the period for:
Interest, net of amounts capitalized $ 94,907 $ 99,872 $ 126,879
=========== =========== ===========

Income taxes, net of refund of $30,488 in 1999 $ (16,428) $ 60,360 $ 41,807
=========== =========== ===========

SUPPLEMENTAL SCHEDULE OF NONCASH INVESTING
ACTIVITIES -
Investment in LYONDELL-CITGO Refining LP (Note 3) $ (32,654) $ -- $ --
=========== =========== ===========

SUPPLEMENTAL SCHEDULE OF NONCASH FINANCING
ACTIVITIES:
Noncash capital contribution $ -- $ 7,607 $ --
=========== =========== ===========
Noncash dividend $ (10,788) $ -- $ (10,037)
=========== =========== ===========

(Concluded)



See notes to consolidated financial statements.





F-6
38




CITGO PETROLEUM CORPORATION

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
EACH OF THE THREE YEARS IN THE PERIOD ENDED DECEMBER 31, 1999
- --------------------------------------------------------------------------------


1. SIGNIFICANT ACCOUNTING POLICIES

DESCRIPTION OF BUSINESS - CITGO Petroleum Corporation ("CITGO" or the
"Company") is a subsidiary of PDV America, Inc. ("PDV America"), an
indirect wholly owned subsidiary of Petroleos de Venezuela, S.A. ("PDVSA"),
the national oil company of the Bolivarian Republic of Venezuela.

CITGO manufactures or refines and markets quality transportation fuels as
well as lubricants, refined waxes, petrochemicals, asphalt and other
industrial products. CITGO owns and operates two modern, highly complex
crude oil refineries (Lake Charles, Louisiana, and Corpus Christi, Texas)
and two asphalt refineries (Paulsboro, New Jersey, and Savannah, Georgia)
with a combined aggregate rated crude oil refining capacity of 582 thousand
barrels per day ("MBPD"). CITGO also owns a minority interest in
LYONDELL-CITGO Refining LP, a limited partnership (formerly a limited
liability company) that owns and operates a refinery in Houston, Texas,
with a rated crude oil refining capacity of 265 MBPD. CITGO also operates a
167 MBPD refinery in Lemont, Illinois, owned by PDV Midwest Refining L.L.C.
("PDVMR"), a wholly owned subsidiary of PDV America. CITGO's consolidated
financial statements also include accounts relating to a 65 percent owned
lubricant and wax plant, pipelines, and equity interests in pipeline
companies and petroleum storage terminals.

CITGO's transportation fuel customers include primarily CITGO branded
wholesale marketers, convenience stores and airlines located mainly east of
the Rocky Mountains. Asphalt is generally marketed to independent paving
contractors on the East Coast of the United States. Lubricants are sold to
independent marketers, mass marketers and industrial customers.
Petrochemical feedstocks and industrial products are sold to various
manufacturers and industrial companies throughout the United States.
Petroleum coke is sold primarily in international markets.

PRINCIPLES OF CONSOLIDATION - The consolidated financial statements include
the accounts of CITGO and its subsidiaries (collectively referred to as the
"Company"). All subsidiaries are wholly owned except for Cit-Con Oil
Corporation ("Cit-Con"), which is 65 percent owned. All material
intercompany transactions and accounts have been eliminated.

The Company's investments in less than majority-owned affiliates are
accounted for by the equity method. The excess of the carrying value of the
investments over the equity in the underlying net assets of the affiliates
is amortized on a straight-line basis over 40 years, which is based upon
the estimated useful lives of the affiliates' assets.

ESTIMATES, RISKS AND UNCERTAINTIES - The preparation of financial
statements in conformity with generally accepted accounting principles
requires management to make estimates and assumptions that affect the
reported amounts of assets and liabilities and disclosure of contingent
assets and liabilities at the date of the financial statements and the
reported amounts of revenues and expenses during the reporting period.
Actual results could differ from those estimates.

CITGO's operations can be influenced by domestic and international
political, legislative, regulatory and legal environments. In addition,
significant changes in the prices or availability of crude oil and refined
products could have a significant impact on CITGO's results of operations
for any particular year.







F-7
39


IMPAIRMENT OF LONG-LIVED ASSETS - The Company periodically evaluates the
carrying value of long-lived assets to be held and used when events and
circumstances warrant such a review. The carrying value of a long-lived
asset is considered impaired when the separately identifiable anticipated
undiscounted net cash flow from such asset is less than its carrying value.
In that event, a loss is recognized based on the amount by which the
carrying value exceeds the fair value of the long-lived asset. Fair value
is determined primarily using the anticipated net cash flows discounted at
a rate commensurate with the risk involved. Losses on long-lived assets to
be disposed of are determined in a similar manner, except that fair values
are reduced for disposal costs.

REVENUE RECOGNITION - Revenue from sales of products is recognized upon
transfer of title, based upon the terms of delivery.

SUPPLY AND MARKETING ACTIVITIES - The Company engages in the buying and
selling of crude oil to supply its refineries. The net results of this
activity are recorded in cost of sales. The Company also engages in the
buying and selling of refined products to facilitate the marketing of its
refined products. The results of this activity are recorded in cost of
sales and sales.

Refined product exchange transactions that do not involve the payment or
receipt of cash are not accounted for as purchases or sales. Any resulting
volumetric exchange balances are accounted for as inventory in accordance
with the Company's last-in, first-out ("LIFO") inventory method. Exchanges
that are settled through payment or receipt of cash are accounted for as
purchases or sales.

EXCISE TAXES - The Company collects excise taxes on sales of gasoline and
other motor fuels. Excise taxes of approximately $3.1 billion, $3 billion,
and $3.2 billion were collected from customers and paid to various
governmental entities in 1999, 1998, and 1997, respectively. Excise taxes
are not included in sales.

CASH AND CASH EQUIVALENTS - Cash and cash equivalents consist of
highly-liquid short-term investments and bank deposits with initial
maturities of three months or less.

RESTRICTED CASH - Restricted cash represents highly-liquid, short-term
investments held in trust accounts in accordance with a tax-exempt bond
agreement. Funds are released solely for financing construction of
environmental facilities as defined in the bond agreements.

INVENTORIES - Crude oil and refined product inventories are stated at the
lower of cost or market and cost is determined using the LIFO method.
Materials and supplies are valued using the average cost method.

PROPERTY, PLANT AND EQUIPMENT - Property, plant and equipment is reported
at cost, less accumulated depreciation. Depreciation is based upon the
estimated useful lives of the related assets using the straight-line
method. Depreciable lives are generally as follows: buildings and
leaseholds - 10 to 24 years; machinery and equipment - 5 to 24 years; and
vehicles - 3 to 10 years.

Upon disposal or retirement of property, plant and equipment, the cost and
related accumulated depreciation are removed from the accounts and any
resulting gain or loss is recognized in income.

The Company capitalizes interest on projects when construction entails
major expenditures over extended time periods. Such interest is allocated
to property, plant and equipment and amortized over the estimated useful
lives of the related assets. Interest capitalized totaled $7 million, $5
million, and $7 million during 1999, 1998, and 1997, respectively.






F-8
40




COMMODITY AND INTEREST RATE DERIVATIVES - The Company uses commodity and
financial instrument derivatives to manage defined commodity price and
interest rate risks arising out of the Company's core business activities.
The Company has only limited involvement with other derivative financial
instruments and does not use them for trading purposes.

The Company enters into petroleum futures contracts, options and other over
the counter commodity derivatives, primarily to hedge a portion of the
price risk associated with crude oil and refined products. In order for a
transaction to qualify for hedge accounting, the Company requires that the
item to be hedged exposes the Company to price risk and that the commodity
contract reduces that risk and is designated as a hedge. The high
correlation between price movements of a product and the commodity contract
in that product is well demonstrated in the petroleum industry and,
generally, the Company relies on those historical relationships and on
periodic comparisons of market price changes to price changes of futures
and options contracts accounted for as hedges. Gains or losses on contracts
which qualify as hedges are recognized when the related inventory is sold
or the hedged transaction is consummated. Changes in the market value of
commodity derivatives which are not hedges are recorded as gains or losses
in the period in which they occur.

The Company also enters into various interest rate swap agreements to
manage its risk related to interest rate changes on its debt. Premiums paid
for purchased interest rate swap agreements are amortized to interest
expense over the terms of the agreements. Unamortized premiums are included
in other assets. The interest rate differentials received or paid by the
Company related to these agreements are recognized as adjustments to
interest expense over the term of the agreements. Gains or losses on
terminated swap agreements are either amortized over the original term of
the swap agreement if the hedged borrowings remain in place, or are
recognized immediately if the hedged borrowings are no longer held.

In June 1998, the Financial Accounting Standards Board issued Statement of
Financial Accounting Standards No. 133, "Accounting for Derivative
Instruments and Hedging Activities" ("SFAS No. 133"). The statement
establishes accounting and reporting standards for derivative instruments
and for hedging activities. It requires that an entity recognize all
derivatives, at fair value, as either assets or liabilities in the
statement of financial position with an offset either to shareholder's
equity and comprehensive income or income depending upon the classification
of the derivative. The Company has not determined the impact on its
financial statements that may result from adoption of SFAS No. 133, which
is required no later than January 1, 2001.

REFINERY MAINTENANCE - Costs of major refinery turnaround maintenance are
charged to operations over the estimated period between turnarounds.
Turnaround periods range approximately from one to seven years. Unamortized
costs are included in other assets. Amortization of refinery turnaround
costs is included in depreciation and amortization expense. Amortization
was $47 million, $47 million, and $49 million for 1999, 1998, and 1997,
respectively. Ordinary maintenance is expensed as incurred.

The Securities and Exchange Commission is considering issuing a notice
which will require companies to expense the non-capital portion of major
maintenance costs as incurred. The notice will require that any existing
unamortized non-capital maintenance costs be expensed immediately. The
Company estimates that the pre-tax charge to income from this change will
be approximately $80 million. It is likely that this change will be
required by June 30, 2000 and will be reported as a cumulative effect of an
accounting change in the consolidated statement of income.

ENVIRONMENTAL EXPENDITURES - Environmental expenditures that relate to
current or future revenues are expensed or capitalized as appropriate.
Expenditures that relate to an existing condition caused by past operations
and that do not contribute to current or future revenue generation are
expensed. Liabilities




F-9
41




are recorded when environmental assessments and/or cleanups are probable
and the costs can be reasonably estimated. Environmental liabilities are
not discounted to their present value. Subsequent adjustments to estimates,
to the extent required, may be made as more refined information becomes
available.

INCOME TAXES - The Company is included in the consolidated U.S. federal
income tax return filed by PDV Holding, Inc., the direct parent of PDV
America. The Company's current and deferred income tax expense has been
computed on a stand-alone basis using an asset and liability approach.

2. REFINERY AGREEMENTS

Effective May 1, 1997, CITGO became the operator of a refinery owned by
PDVMR, a subsidiary of PDV America. CITGO also purchases the products
produced at the refinery (Note 4).

An affiliate of PDVSA acquired a 50 percent equity interest in a refinery
in Chalmette, Louisiana ("Chalmette") in October 1997, and has assigned to
CITGO its option to purchase up to 50 percent of the refined products
produced at the refinery through December 31, 2000 (Note 4). CITGO
exercised this option on November 1, 1997, and acquired approximately 66
MBPD and 65 MBPD of refined products from the refinery during 1999 and
1998, respectively, approximately one-half of which was gasoline.

In October 1998, an affiliate of PDVSA acquired a 50 percent equity
interest in a joint venture that owns and operates a refinery in St. Croix,
U.S. Virgin Islands ("HOVENSA") and has the right under a product sales
agreement to assign periodically to CITGO, or other related parties, its
option to purchase 50% of the refined products produced by HOVENSA (less a
certain portion of such products that HOVENSA will market directly in the
local and Caribbean markets). In addition, under the product sales
agreement, the PDVSA affiliate has appointed CITGO as its agent in
designating which of its affiliates shall from time to time take deliveries
of the refined products available to it. The product sales agreement will
be in effect for the life of the joint venture, subject to termination
events based on default or mutual agreement (Note 4). Pursuant to the above
arrangement, CITGO acquired approximately 118 MBPD and 120 MBPD of refined
products from HOVENSA during 1999 and 1998, respectively, approximately
one-half of which was gasoline.

3. INVESTMENT IN LYONDELL-CITGO REFINING LP

LYONDELL-CITGO Refining LP ("LYONDELL-CITGO") owns and operates a 265 MBPD
refinery in Houston, Texas. LYONDELL-CITGO was formed in 1993 by
subsidiaries of CITGO and Lyondell Chemical Company ("Lyondell"), referred
to as the Owners. CITGO contributed cash for a participation interest and
other commitments related to LYONDELL-CITGO's refinery enhancement project
and Lyondell contributed the Houston refinery and related assets for the
remaining participation interest. The refinery enhancement project to
increase the refinery's heavy crude oil high conversion capacity was
substantially completed at the end of 1996 with an in-service date of March
1, 1997. The heavy crude oil processed by the Houston refinery is supplied
by a subsidiary of PDVSA under a long-term crude oil supply contract that
expires in 2017. In April 1998, the crude oil supplier exercised its
contractual rights and reduced deliveries of crude oil to LYONDELL-CITGO.
LYONDELL-CITGO has been required to obtain alternative sources of crude oil
supply in replacement which has resulted in lower operating margins. CITGO
purchases substantially all of the refined products produced at the Houston
refinery under a long-term contract (Note 4).

CITGO's participation interest in LYONDELL-CITGO was approximately 41% at
December 31, 1999. CITGO has a one-time option to increase, for an
additional investment, its participation interest to 50 percent. This
option may be exercised after January 1, 2000 but not later than September
30, 2000.




F-10
42




CITGO loaned $24.6 million, $19.8 million and $16.5 million to
LYONDELL-CITGO during 1999, 1998 and 1997, respectively. The notes bear
interest at market rates which were approximately 6.7%, 5.9% and 5.9% at
December 31, 1999, 1998 and 1997, and are due July 1, 2003. These notes are
included in other assets in the accompanying consolidated balance sheets.
Effective December 31, 1999, CITGO converted $32.7 million of these notes
to investments in LYONDELL-CITGO.

CITGO accounts for its investment in LYONDELL-CITGO using the equity method
of accounting and records its share of the net earnings of LYONDELL-CITGO
based on allocations of income agreed to by the Owners. Information on
CITGO's investment in LYONDELL-CITGO follows:



DECEMBER 31,
---------------------------------------
1999 1998 1997
(000's OMITTED)

Carrying value of investment $ 560,227 $ 597,373 $ 630,060
Notes receivable 28,255 36,309 16,509
Participation interest 41% 41% 42%
Equity in net income $ 924 $ 58,827 $ 44,429
Cash distributions received 70,724 91,763 64,734

Summary of financial position:
Current assets $ 219,000 $ 197,000 $ 243,000
Noncurrent assets 1,406,000 1,440,000 1,438,000
Current liabilities 697,000 203,000 293,000
Noncurrent liabilities 316,000 785,000 715,000
Member's equity 612,000 649,000 673,000

Summary of operating results:
Revenue $ 2,571,000 $ 2,055,000 $ 2,697,000
Gross profit 133,000 291,000 255,000
Net income 24,000 169,000 147,000



LYONDELL-CITGO has a $450 million credit facility that is due on May 5,
2000. The Owners are currently reviewing financing alternatives to address
this situation. However, there is no agreement on a definitive plan to
replace this facility and LYONDELL-CITGO does not have the funds available
to repay the facility when it becomes due. As a result of this
circumstance, CITGO management conducted a review to determine if its
ability to realize the carrying value of its investment in LYONDELL-CITGO
has been impaired. Based upon this review, CITGO management has determined
that no such impairment has occurred.

4. RELATED PARTY TRANSACTIONS

The Company purchases approximately one-half of the crude oil processed in
its refineries from subsidiaries of PDVSA under long-term supply
agreements. These supply agreements extend through the year 2006 for the
Lake Charles refinery, 2010 for the Paulsboro refinery, 2012 for the Corpus
Christi refinery and 2013 for the Savannah refinery. The Company purchased
$1.7 billion, $1.4 billion, and $2 billion of crude oil, feedstocks and
other products from wholly owned subsidiaries of PDVSA in 1999, 1998, and
1997, respectively, under these and other purchase agreements. During 1999,
PDVSA deliveries of crude oil to CITGO were less than contractual base
volumes due to the PDVSA declaration of force majeure pursuant to all four
long-term crude oil supply contracts described above. As a result, the
Company has been required to obtain alternative sources of crude oil, which
has resulted in lower operating margins. It is not possible to forecast the
future financial impacts of these reductions in crude





F-11
43


oil deliveries on CITGO's margins because the correlation between crude oil
and refined product prices is not constant over time and the duration of
force majeure cannot be predicted.

Additionally, during the second half of 1999, PDVSA did not deliver naptha
pursuant to one of the contracts and has made contractually specified
payments in lieu thereof.

The crude oil supply contracts incorporate formula prices based on the
market value of a number of refined products deemed to be produced from
each particular crude oil, less (i) certain deemed refining costs
adjustable for inflation, (ii) certain actual costs, including
transportation charges, import duties and taxes and (iii) a deemed margin,
which varies according to the grade of crude oil. At December 31, 1999 and
1998, $178 million and $74 million, respectively, were included in payables
to affiliates as a result of these transactions.

The Company also purchases refined products from various other affiliates
including LYONDELL-CITGO, PDVMR, HOVENSA and Chalmette, under long-term
contracts. These agreements incorporate various formula prices based on
published market prices and other factors. Such purchases totaled $4.3
billion, $2.9 billion, and $2.8 billion for 1999, 1998, and 1997,
respectively. At December 31, 1999 and 1998, $196 million and $64 million,
respectively, were included in payables to affiliates as a result of these
transactions.

The Company had refined product, feedstock, and other product sales to
affiliates of $190 million, $164 million, and $221 million, in 1999, 1998,
and 1997, respectively. The Company's sales of crude oil to affiliates were
$37 million, $18 million, and $3 million in 1999, 1998, and 1997,
respectively. At December 31, 1999 and 1998, $38 million and $34 million,
respectively, were included in due from affiliates as a result of these and
related transactions.

Pursuant to the PDVMR operating agreement (Note 2), on May 1, 1997, CITGO
became the operator of the PDVMR refinery and employed a substantial number
of employees previously employed by UNO-VEN and as a result, CITGO assumed
a liability for postretirement benefits other than pensions (Note 11) of
approximately $27 million related to those employees. A corresponding
amount due from PDVMR is included in other assets at December 31, 1999 and
1998, pending final determination of the method of settlement by PDV
America. CITGO charges PDVMR a management fee which covers various support
services ($7 million and $8 million in 1999 and 1998, respectively) which
is included in other income. PDVMR reimburses CITGO for all payroll
expenses, including pension and benefit costs, related to CITGO employees
engaged in the operation of the refinery. Such employee costs and the
related reimbursements ($55 million and $52 million in 1999 and 1998,
respectively) are not included in CITGO's cost of sales or revenues.

Under a separate guarantee of rent agreement, PDVSA has guaranteed payment
of rent, stipulated loss value and terminating value due under the lease of
the Corpus Christi refinery facilities described in Note 14. The Company
has also guaranteed debt of certain affiliates (Note 13).

The Company and PDV America are parties to a tax allocation agreement that
is designed to provide PDV America with sufficient cash to pay its
consolidated income tax liabilities. In 1997, $10 million due from PDV
America to CITGO under this tax allocation agreement for the 1996 tax year
was classified as a noncash dividend. In 1998, $7.6 million due from CITGO
to PDV America under this agreement for the 1997 tax year was classified as
a noncash contribution of capital. In 1999, $10.8 million due from PDV
America to CITGO under this agreement for the 1998 tax year was classified
as a noncash dividend. In the event that CITGO should cease to be part of
the consolidated federal income tax return, any amounts included in
shareholder's equity under this agreement are required to be settled
between the parties in cash. At December 31, 1999, CITGO has income taxes
payable of $24 million included in other current liabilities. At December
31, 1998, CITGO had income






F-12
44


taxes receivable of $12 million included in prepaid expenses and a $5
million receivable from PDV America included in due from affiliates.

5. ACCOUNTS RECEIVABLE



1999 1998
(000'S OMITTED)


Trade $ 905,875 $ 487,627
Credit card 93,132 47,096
Other 20,808 22,491
----------- -----------
1,019,815 557,214
Allowance for uncollectible accounts (15,547) (16,713)
----------- -----------
$ 1,004,268 $ 540,501
=========== ===========




Sales are made on account, based on pre-approved unsecured credit terms
established by CITGO management. The Company also has a proprietary credit
card program which allows retail consumers to purchase fuel and convenience
items at CITGO branded outlets. Allowances for uncollectible accounts are
established based on several factors that include, but are not limited to,
analysis of specific customers, historical trends, current economic
conditions and other information.

The Company has two limited purpose subsidiaries, CITGO Funding Corporation
and CITGO Funding Corporation II, which have non-recourse agreements to
sell trade accounts and credit card receivables. Under the terms of the
agreements, new receivables are added to the pool as collections reduce
previously sold receivables. The amounts sold at any one time are limited
to a maximum of $125 million of trade accounts receivable and $150 million
of credit card receivables. These agreements expire on June 22, 2000 and
May 8, 2000, respectively, and are renewable for successive one-year terms
by mutual agreement. Fees and expenses of $15.2 million, $16.1 million and
$5.8 million related to the agreements were recorded as other expense
during the years ended December 31, 1999, 1998 and 1997, respectively.

6. INVENTORIES



1999 1998
(000'S OMITTED)


Refined product $ 747,620 $ 539,675
Crude oil 150,092 123,927
Materials and supplies 55,441 56,023
--------- ---------
$ 953,153 $ 719,625
========= =========


Inventories at December 31, 1998, were carried at estimated net market
value which was $159 million lower than historical cost. At December 31,
1999, estimated net market values exceeded historical cost by approximately
$350 million, and accordingly, no write-down was necessary.








F-13
45


7. PROPERTY, PLANT AND EQUIPMENT



1999 1998
(000'S OMITTED)


Land $ 112,266 $ 107,961
Buildings and leaseholds 489,394 490,780
Machinery and equipment 3,203,953 2,972,646
Vehicles 24,468 28,913
Construction in process 107,599 163,845
------------ ------------
3,937,680 3,764,145
Accumulated depreciation and amortization (1,060,375) (903,718)
------------ ------------

$ 2,877,305 $ 2,860,427
============ ============




Depreciation expense for 1999, 1998, and 1997 was $187 million, $176
million, and $161 million, respectively.

In 1997, the Company incurred property damages from a fire at its Corpus
Christi, Texas, refinery (Note 13). Other income (expense) for the year
ended December 31, 1997 includes $9.4 million of gains from insurance
recoveries related to this event.

Other income (expense) includes gains and losses on disposals and
retirements of property, plant and equipment. Such net losses were
approximately $13 million, $2 million, and $14 million in 1999, 1998, and
1997, respectively.

8. INVESTMENTS IN AFFILIATES

In addition to LYONDELL-CITGO, the Company's investments in affiliates
consist of equity interests of 6.8 to 50 percent in joint interest
pipelines and terminals, including a 13.98 percent interest in Colonial
Pipeline Company; a 49.5 percent partnership interest in Nelson Industrial
Steam Company ("NISCO"), which is a qualified cogeneration facility; and a
49 percent partnership interest in Mount Vernon Phenol Plant. The carrying
value of these investments exceeded the Company's equity in the underlying
net assets by approximately $143 million and $151 million at December 31,
1999 and 1998, respectively.

At December 31, 1999 and 1998, NISCO had a partnership deficit. CITGO's
share of this deficit, as a general partner, was $60.3 million and $56.5
million at December 31, 1999 and 1998, respectively, which is included in
other noncurrent liabilities in the accompanying consolidated balance
sheets.

Information on the Company's investments, including LYONDELL-CITGO,
follows:



December 31,
-----------------------
1999 1998
(000's OMITTED)


Company's investments in affiliates (excluding NISCO) $ 734,822 $ 781,481
Company's equity in net income of affiliates 21,348 77,105
Dividends and distributions received from affiliates 102,339 122,044






F-14
46





Selected financial information for the affiliates is summarized as
follows:



December 31,
---------------------------------------------
1999 1998 1997
(000's OMITTED)

Summary of financial position:
Current assets $ 469,101 $ 464,047 $ 511,848
Noncurrent assets 2,853,786 2,817,165 2,830,568
Current liabilities 1,034,181 670,045 627,296
Noncurrent liabilities 1,681,558 1,934,378 2,025,709

Summary of operating results:
Revenues $3,559,451 $3,337,449 $4,076,429
Gross profit 567,749 757,678 628,559
Net income 237,906 384,810 371,006



9. SHORT-TERM BANK LOANS

As of December 31, 1999, the Company has established $184 million of
uncommitted, unsecured, short-term borrowing facilities with various banks.
Interest rates on these facilities are determined daily based upon the
federal funds' interest rates, and maturity options vary up to 30 days. The
weighted average interest rates actually incurred in 1999, 1998, and 1997
were 5.5 percent, 5.8 percent, and 5.9 percent, respectively. The Company
had $16 million and $37 million of borrowings outstanding under these
facilities at December 31, 1999 and 1998, respectively.

10. LONG-TERM DEBT



1999 1998
(000's OMITTED)


Revolving bank loan $ 345,000 $ 165,000

Senior Notes $200 million face amount, due 2006 with
interest rate of 7.875% 199,806 199,776

Private Placement Senior Notes, due 2000 to 2006 with
interest rates from 9.03% to 9.30% 136,688 176,623

Master Shelf Agreement Senior Notes, due 2002 to
2009 with interest rates from 7.17% to 8.94% 260,000 260,000

Tax Exempt Bonds, due 2004 to 2029 with variable
and fixed interest rates 305,520 275,520

Taxable Bonds, due 2026 to 2028 with variable interest rates 178,000 208,000

Cit-Con bank credit agreement 14,286 21,429
------------- -------------
1,439,300 1,306,348
Current portion of long-term debt (47,078) (47,078)
------------- -------------
$ 1,392,222 $ 1,259,270
============= =============






F-15
47
On April 15, 1999, CITGO issued $25 million of tax exempt revenue bonds,
which are due 2029. The proceeds were used to redeem $25 million of the
taxable Gulf Coast environmental facilities revenue bonds due 2028.

REVOLVING BANK LOANS - The Company's credit agreement with various banks
consists of (i) a $400 million, five-year, revolving bank loan maturing in
May 2003 and (ii) a $150 million, 364-day, revolving bank loan, both of
which are unsecured and have various borrowing maturities and interest
rate options. Interest rates on the revolving bank loans were 7.8 percent
and 7.5 percent at December 31, 1999 and 1998, respectively.

SHELF REGISTRATION - In April 1996, the Company filed a registration
statement with the Securities and Exchange Commission relating to the
shelf registration of $600 million of debt securities that may be offered
and sold from time to time. In May 1996, the registration became effective
and CITGO sold a tranche of debt securities with an aggregate offering
price of $200 million. On October 28, 1997, the Company entered into a
Selling Agency Agreement with Salomon Brothers Inc. and Chase Securities
Inc. providing for the sale of up to an additional $235 million in
aggregate principal amount of notes in tranches from time to time by the
Company under the shelf registration. No amounts were sold under this
agreement as of December 31, 1999.

PRIVATE PLACEMENT - At December 31, 1999, the Company has outstanding
approximately $137 million of privately placed, unsecured Senior Notes.
Principal amounts are payable in annual installments in November and
interest is payable semi-annually in May and November.

MASTER SHELF AGREEMENT - At December 31, 1999, the Company has outstanding
$260 million of privately-placed senior notes under an unsecured Master
Shelf Agreement with an insurance company. The notes have various fixed
interest rates and maturities.

COVENANTS - The various agreements above contain certain covenants that,
depending upon the level of the Company's capitalization and earnings,
could impose limitations on the Company's ability to pay dividends, incur
additional debt, place liens on property, and sell fixed assets. The
Company was in compliance with the debt covenants at December 31, 1999.

TAX-EXEMPT BONDS - Through state entities, the Company has issued $74.8
million of industrial development bonds for certain Lake Charles port
facilities and pollution control equipment and $231 million of
environmental revenue bonds to finance a portion of the Company's
environmental facilities at its Lake Charles and Corpus Christi refineries
and at the LYONDELL-CITGO refinery. Additional credit support for these
bonds is provided through letters of credit. The bonds bear interest at
various floating rates which ranged from 4.5 percent to 6.0 percent at
December 31, 1999, and 4.1 percent to 6.0 percent at December 31, 1998.

TAXABLE BONDS - Through state entities, the Company has issued and
currently outstanding $178 million of taxable environmental revenue bonds
to finance a portion of the Company's environmental facilities at its Lake
Charles refinery and at the LYONDELL-CITGO refinery. Such bonds are
secured by letters of credit and have floating interest rates (6.1 percent
at December 31, 1999 and 5.3 percent at December 31, 1998). At the option
of the Company and upon the occurrence of certain specified conditions,
all or any portion of such taxable bonds may be converted to tax-exempt
bonds. As of December 31, 1999, $17 million of originally issued taxable
bonds had been converted to tax exempt bonds.


F-16
48



CIT-CON BANK CREDIT AGREEMENT - The Cit-Con bank credit agreement consists
of a term loan collateralized by throughput agreements of the owner
companies. The loan contains various interest rate options (weighted
average effective rates of 7.5 percent and 6.7 percent at December 31,
1999 and 1998, respectively), and requires quarterly principal payments
through December 2001.

DEBT MATURITIES - Future maturities of long-term debt as of December 31,
1999, are: 2000 - $47.1 million, 2001 - $47.1 million, 2002 - $36.4
million, 2003 - $406.4 million, 2004 - $47.2 million and $855.1 million
thereafter.

INTEREST RATE SWAP AGREEMENTS - The Company has entered into the following
interest rate swap agreements to reduce the impact of interest rate
changes on its variable interest rate debt:



NOTIONAL PRINCIPAL AMOUNT
--------------------------------
EXPIRATION FIXED RATE 1999 1998
VARIABLE RATE INDEX DATE PAID (000'S OMITTED)


One-month LIBOR May 2000 6.28% $ 25,000 $ 25,000
J. J. Kenny May 2000 4.72% 25,000 25,000
J. J. Kenny February 2005 5.30% 12,000 12,000
J. J. Kenny February 2005 5.27% 15,000 15,000
J. J. Kenny February 2005 5.49% 15,000 15,000
------------- --------------
$ 92,000 $ 92,000
============= ==============




Interest expense includes $1.5 million, $1.0 million, and $0.8 million, in
1999, 1998, and 1997, respectively, related to the net settlements on
these agreements.

11. EMPLOYEE BENEFIT PLANS

EMPLOYEE SAVINGS - The Company sponsors three qualified defined
contribution retirement and savings plans covering substantially all
eligible salaried and hourly employees. Participants make voluntary
contributions to the plans and the Company makes contributions, including
matching of employee contributions, based on plan provisions. The Company
expensed $18 million, $19 million, and $19 million, related to its
contributions to these plans for the years 1999, 1998, and 1997,
respectively.

PENSION BENEFITS - The Company sponsors three qualified noncontributory
defined benefit pension plans, two covering eligible hourly employees and
one covering eligible salaried employees. The Company also sponsors three
nonqualified defined benefit plans for certain eligible employees. The
qualified plans' assets include corporate securities and shares in a fixed
income mutual fund, two collective funds and a short-term investment fund.
The nonqualified plans are not funded.

The Company's policy is to fund the qualified pension plans in accordance
with applicable laws and regulations and not to exceed the tax-deductible
limits. The nonqualified plans are funded as necessary to pay retiree
benefits. The plan benefits for each of the qualified pension plans are
primarily based on an employee's years of plan service and compensation as
defined by each plan.

POSTRETIREMENT BENEFITS OTHER THAN PENSIONS - In addition to pension
benefits, the Company also provides certain health care and life insurance
benefits for eligible salaried and hourly employees at retirement. These
benefits are subject to deductibles, copayment provisions and other
limitations and are primarily funded on a pay as you go basis. The Company
reserves the right to change or to terminate the benefits at any time.


F-17
49

The following sets forth the changes in benefit obligations and plan
assets for the pension and postretirement plans for the years ended
December 31, 1999 and 1998, and the funded status of such plans reconciled
with amounts reported in the Company's consolidated balance sheets:




PENSION BENEFITS OTHER BENEFITS
---------------------- ----------------------
1999 1998 1999 1998
(000'S OMITTED) (000'S OMITTED)

CHANGE IN BENEFIT OBLIGATION:
Benefit obligation at beginning of year $ 270,382 $ 233,486 $ 195,928 $ 180,406
Service cost 19,554 17,742 6,922 6,610
Interest cost 17,899 16,058 13,040 12,770
Actuarial (gain) loss (39,996) 11,958 (19,540) 1,631
Benefits paid (9,136) (8,862) (7,318) (5,489)
--------- --------- --------- ---------
Benefit obligation at end of year 258,703 270,382 189,032 195,928
--------- --------- --------- ---------

Change in plan assets:
Fair value of plan assets at
beginning of year 254,648 221,261 939 889
Actual return on plan assets 28,644 38,139 52 50
Employer contribution 1,226 4,110 7,318 5,489
Benefits paid (9,136) (8,862) (7,318) (5,489)
--------- --------- --------- ---------
Fair value of plan assets at end of year 275,382 254,648 991 939
--------- --------- --------- ---------

Funded status 16,679 (15,734) (188,041) (194,989)
Unrecognized net actuarial gain (85,606) (41,146) (31,431) (11,896)
Unrecognized prior service cost 107 147 -- --
Net gain at date of adoption (1,012) (1,280) -- --
-------- -------- -------- --------

Net amount recognized $ (69,832) $ (58,013) $(219,472) $(206,885)
======== ======== ======== ========

Amounts recognized in the Company's
consolidated balance sheets consist of:
Accrued benefit liability $ (76,303) $ (61,991) $(219,472) $(206,885)
Intangible asset 1,245 3,978 -- --
Accumulated other comprehensive
income 5,226 -- -- --
--------- -------- --------- --------

Net amount recognized $ (69,832) $ (58,013) $(219,472) $(206,885)
========= ========= ========= =========






PENSION BENEFITS OTHER BENEFITS
------------------------- --------------------
1999 1998 1999 1998

WEIGHTED-AVERAGE ASSUMPTIONS
AS OF DECEMBER 31:
Discount rate 7.75% 6.75% 7.75% 6.75%
Expected return on plan assets 9.0 % 9.0 % 6.0 % 6.0%
Rate of compensation increase 5.0 % 5.0 % -- --





F-18

50



For measurement purposes, a 7.0 percent annual rate of increase in the per
capita cost of covered health care benefits was assumed for 1999. The rate
was assumed to decrease gradually to 5.5 percent for 2002 and remain at
that level thereafter.




PENSION BENEFITS OTHER BENEFITS
---------------------------------- -----------------------------------
1999 1998 1997 1999 1998 1997
(000'S OMITTED) (000'S OMITTED)

Components of net periodic
benefit cost:
Service cost $ 19,554 $ 17,742 $ 15,759 $ 6,922 $ 6,610 $ 6,786
Interest cost 17,899 16,058 14,246 13,040 12,770 12,359
Expected return on plan assets (22,531) (19,660) (15,453) (57) (53) (47)
Amortization of prior service cost 40 40 40 -- -- --
Amortization of net gain at date
of adoption (268) (268) (268) -- -- --
Recognized net actuarial gain (1,649) (1,625) (1,228) -- (8,823) (27,581)
------- ------- -------- -------- -------- --------

Net periodic benefit cost (credit) $ 13,045 $ 12,287 $ 13,096 $ 19,905 $ 10,504 $ (8,483)
======== ======== ======== ======== ======== ========



Actuarial gains (or losses) related to the postretirement benefit
obligation are recognized as a component of net postretirement benefit
cost by the amount the beginning of year unrecognized net gain (or loss)
exceeds 7.5 percent of the accumulated postretirement benefit obligation.

The projected benefit obligation, accumulated benefit obligation, and fair
value of plan assets for the pension plan with accumulated benefit
obligations in excess of plan assets were $23.4 million, $22.8 million and
$-0-, respectively, as of December 31, 1999 and $18.2 million, $17.5
million and $-0-, respectively, as of December 31, 1998.

Assumed health care cost trend rates have a significant effect on the
amounts reported for the health care plans. A one-percentage-point change
in assumed health care cost trend rates would have the following effects:





1-PERCENTAGE- 1-PERCENTAGE-
POINT INCREASE POINT DECREASE

Increase (decrease) in total of service and interest cost
components $ 4,252,000 $ (3,505,000)
Increase (decrease) in postretirement benefit obligation 34,215,000 (28,971,000)




EMPLOYEE SEPARATION PROGRAMS - During 1997, the Company's senior management
implemented a Transformation Program that resulted in certain personnel
reductions (the "Separation Programs"). The Company expensed approximately
$7 million, $8 million and $22 million for the years ended December 31,
1999, 1998 and 1997, respectively, relating to the Separation Programs.


F-19
51


12. INCOME TAXES

The provisions for income taxes are comprised of the following:




1999 1998 1997
(000'S OMITTED)

Current:
Federal $ 11,781 $ 40,040 $28,277
State 560 3,326 2,061
-------- -------- -------
12,341 43,366 30,338
Deferred 49,349 59,421 60,617
-------- -------- -------

$ 61,690 $102,787 $90,955
======== ======== =======



The federal statutory tax rate differs from the effective tax rate due to
the following:




1999 1998 1997


Federal statutory tax rate 35.0 % 35.0 % 35.0 %
State taxes, net of federal benefit 2.4 % 1.2 % 2.2 %
Dividend exclusions (3.8)% (2.5)% (2.6)%
Tax settlement (5.4)% - % (5.4)%
Other 1.4 % 0.9 % 1.4 %
---- ---- ----

Effective tax rate 29.6 % 34.6 % 30.6 %
==== ==== ====




The effective tax rates for 1999 and 1997 were unusually low due primarily
to the favorable resolution in each of these years with the Internal
Revenue Service of significant tax issues related to environmental
expenditures.




F-20
52


Deferred income taxes reflect the net tax effects of (i) temporary
differences between the financial and tax bases of assets and liabilities,
and (ii) loss and tax credit carryforwards. The tax effects of significant
items comprising the Company's net deferred tax liability as of December
31, 1999 and 1998, are as follows:




1999 1998
(000'S OMITTED)

Deferred tax liabilities:
Property, plant and equipment $562,818 $533,432
Inventories (including, in 1998, the effect of adjustment to market) 87,085 22,638
Investments in affiliates 121,002 110,192
Other 43,055 41,097
-------- --------
813,960 707,359
-------- --------

Deferred tax assets:
Postretirement benefit obligations 77,371 74,331
Employee benefit accruals 38,893 34,029
Alternative minimum tax credit carryforwards 41,809 31,376
Net operating loss carryforwards 40,914 --
Marketing and promotional accruals 9,271 12,773
Other 81,634 76,620
-------- --------
289,892 229,129
-------- --------

Net deferred tax liability (of which $2,317 is included in current liabilities
and $65,234 is included in current assets at
December 31, 1999 and 1998, respectively) $524,068 $478,230
======== ========





At December 31, 1998, the Company had capital loss carryforwards of $6.7
million. At December 31, 1998, a valuation allowance of $1.0 million was
established related to that portion of the carryforwards for which it was
considered more likely than not that the related tax benefits would not be
realized before expiration.

During 1999, the Company filed a claim with the IRS to reclassify certain
losses from capital to ordinary. The Company was successful and was able
to utilize all capital loss carryforwards in its 1998 tax return.
Therefore, at December 31, 1999, no capital loss carryforwards exist.

At December 31, 1999, the Company has a net operating loss carryforward of
$114.8 million which will expire in 2019.

The Company's alternative minimum tax credit carryforwards are available
to offset regular federal income taxes in future years without expiration,
subject to certain alternative minimum tax limitations.

13. COMMITMENTS AND CONTINGENCIES

LITIGATION AND INJURY CLAIMS - Various lawsuits and claims arising in the
ordinary course of business are pending against the Company. The Company
records accruals for potential losses when, in management's opinion, such
losses are probable and reasonably estimable. If known lawsuits and claims
were to be determined in a manner adverse to the Company, and in amounts
greater than the Company's accruals, then such determinations could have a
material adverse effect on the Company's results of operations in a given
reporting period. However, in management's opinion the ultimate


F-21

53



resolution of these lawsuits and claims will not exceed, by a material
amount, the amount of the accruals and the insurance coverage available to
the Company. This opinion is based upon management's and counsel's current
assessment of these lawsuits and claims. The most significant lawsuits and
claims are discussed below.

The case brought in the United States District Court for the Northern
District of Illinois by the Oil Chemical & Atomic Workers, Local 7-517
against UNO-VEN, CITGO, PDVSA, PDV America, and UNOCAL pursuant to Section
301 of the Labor Management Relations Act ("LMRA") resulted in the court's
ruling in favor of all defendants on Motions for Summary Judgment in June,
1998; this ruling was affirmed on appeal and the case is now terminated.

In May 1997, an explosion and fire occurred at CITGO's Corpus Christi
refinery. No serious personal injuries were reported. CITGO received
approximately 7,500 individual claims for personal injury and property
damage related to the above noted incident. Approximately 1,300 of these
claims have been resolved for amounts which individually and collectively
were not material. There are presently seventeen lawsuits filed on behalf
of approximately 9,000 individuals arising out of this incident in federal
and state courts in Corpus Christi alleging property damages, personal
injury and punitive damages. A trial of one of the federal court lawsuits
in October 1998 involving ten bellwether plaintiffs, out of approximately
400 plaintiffs, resulted in a verdict for CITGO. The remaining plaintiffs
in this case have agreed to settle for an immaterial amount.

A class action lawsuit is pending in Corpus Christi, Texas state court
against CITGO and other operators and owners of nearby industrial
facilities which claims damages for reduced value of residential
properties located in the vicinity of the industrial facilities as a
result of air, soil and groundwater contamination. CITGO has contracted to
purchase all of the 275 properties included in the lawsuit which are in an
area adjacent to CITGO's Corpus Christi refinery and settle the property
damage claims relating to these properties. Related to this purchase,
$15.7 million was expensed in 1997. The trial judge recently ruled, over
CITGO's objections, that a settlement agreement CITGO entered into in
September 1997 and subsequently withdrew from, which provided for
settlement of the remaining property damage claims for $5 million is
enforceable. CITGO believes this ruling is erroneous and will appeal. The
trial against CITGO of these remaining claims will be postponed
indefinitely. Two related personal injury and wrongful death lawsuits were
filed against the same defendants in 1996, one of which is scheduled for
trial in 2000. A trial date for the other case has not been set.

Litigation is pending in federal court in Lake Charles, Louisiana, against
CITGO by a number of current and former Lake Charles refinery employees
and applicants asserting claims of racial discrimination in connection
with CITGO's employment practices. The first trial in this case, which
involved two plaintiffs, began in October 1999 and resulted in verdicts
for the Company. The Court granted the Company's motion for summary
judgment with respect to another group of claims; an appeal of this ruling
is expected. Trials of the remaining cases are currently stayed.

CITGO is among defendants to lawsuits in California, North Carolina and
New York alleging contamination of water supplies by methyl tertiary butyl
ether ("MTBE"), a component of gasoline. The action in California was
filed in November 1998 by the South Tahoe Public Utility District and
CITGO was added as a defendant in February 1999. The North Carolina case,
filed in January 1999, and the New York case, filed in January 2000 are
putative class actions on behalf of owners of water wells and other
drinking water supplies in the states. All of these actions allege that
MTBE poses public health risks. These matters are in early stages of
discovery. CITGO has denied all of the allegations and is pursuing its
defenses.

F-22

54



ENVIRONMENTAL COMPLIANCE AND REMEDIATION - CITGO is subject to various
federal, state and local environmental laws and regulations which may
require CITGO to take action to correct or improve the effects on the
environment of prior disposal or release of petroleum substances by CITGO
or other parties. Management believes the Company is in compliance with
these laws and regulations in all material aspects. Maintaining compliance
with environmental laws and regulations in the future could require
significant capital expenditures and additional operating costs.

In 1992, the Company reached an agreement with a state agency to cease
usage of certain surface impoundments at the Company's Lake Charles
refinery by 1994. A mutually acceptable closure plan was filed with the
state in 1993. The Company and its former owner are participating in the
closure and sharing the related costs based on estimated contributions of
waste and ownership periods. The remediation commenced in December 1993.
In 1997, the Company presented a proposal to a state agency revising the
1993 closure plan. In 1998, the Company amended its 1997 proposal as
requested by the state agency. A ruling on the proposal, as amended, is
expected in 2000 with final closure to begin in 2002.

In 1992, an agreement was reached between the Company and its former owner
concerning a number of environmental issues. The agreement consisted, in
part, of payments to the Company totaling $46 million. The former owner
will continue to share the costs of certain specific environmental
remediation and certain tort liability actions based on ownership periods
and specific terms of the agreement.

The Texas Natural Resources Conservation Commission ("TNRCC") conducted an
environmental compliance review at the Corpus Christi refinery in the
first and second quarters of 1998. In January 1999, the TNRCC issued the
Company a Notice of Violation ("NOV") arising from this review and in
October 1999 proposed fines of approximately $1.6 million related to the
NOV. Most of the alleged violations refer to recordkeeping and reporting
issues, failure to keep proper records, failure to meet required emission
levels, and failure to properly monitor emissions. TNRCC issued the
Company another NOV in December 1999 based on its 1999 audits which cites
items similar to items cited earlier and the agency has tentatively
suggested that the two audits should be combined for resolution. The
Company intends to vigorously protest the alleged violations and proposed
fines.

In June 1999, CITGO and numerous other industrial companies received
notice from the U.S. Environmental Protection Agency ("EPA") that the EPA
believes these companies have contributed to contamination in the
Calcasieu Estuary, in the proximity of Lake Charles, Calcasieu Parish,
Louisiana and are Potentially Responsible Parties ("PRPs") under the
Comprehensive Environmental Response, Compensation, and Liability Act
("CERCLA"). The EPA made a demand for payment of its past investigation
costs from CITGO and other PRPs and advised it intends to conduct a
Remedial Investigation/Feasibility Study ("RI/FS") under its CERCLA
authority. CITGO and other PRPs may be potentially responsible for the
costs of the RI/FS. CITGO disagrees with the EPA's allegations and intends
to contest this matter.

In October 1999, the EPA issued a NOV to CITGO for violations of federal
regulations regarding reformulated gasoline found during a May 1998
inspection at CITGO's Braintree, Massachusetts terminal and recommended a
penalty of $218,500. The Company intends to vigorously contest the
proposed fines and allegations.

Based on currently available information, including the continuing
participation of the former owner in remediation actions, management
believes its accruals for potential environmental liabilities are
adequate. Conditions which require additional expenditures may exist with
respect to various Company


F-23
55



sites including, but not limited to, CITGO's operating refinery complexes,
closed refineries, service station sites and crude oil and petroleum
product storage terminals. The amount of such future expenditures, if any,
is indeterminable.

SUPPLY AGREEMENTS - CITGO purchases the crude oil processed at its
refineries and also purchases refined products to supplement the
production from its refineries to meet marketing demands and resolve
logistical issues. In addition to supply agreements with various
affiliates (Notes 2 and 4), the Company has various other crude oil,
refined product and feedstock purchase agreements with unaffiliated
entities with terms ranging from monthly to annual renewal. The Company
believes these sources of supply are reliable and adequate for its current
requirements.

THROUGHPUT AGREEMENTS - The Company has throughput agreements with certain
pipeline affiliates (Note 8). These throughput agreements may be used to
secure obligations of the pipeline affiliates. Under these agreements, the
Company may be required to provide its pipeline affiliates with additional
funds through advances against future charges for the shipping of
petroleum products. The Company currently ships on these pipelines and has
not been required to advance funds in the past. At December 31, 1999, the
Company has no fixed and determinable, unconditional purchase obligations
under these agreements.

COMMODITY DERIVATIVE ACTIVITY - The Company's commodity derivatives are
generally entered into through major brokerage houses and traded on
national exchanges and can be settled in cash or through delivery of the
commodity. Such contracts generally qualify for hedge accounting and
correlate to market price movements of crude oil and refined products.
Resulting gains and losses, therefore, will generally be offset by gains
and losses on the Company's hedged inventory or future purchases and
sales. The Company's derivative commodity activity is closely monitored by
management and contract periods are generally less than 30 days.
Unrealized and deferred gains and losses on these contracts at December
31, 1999 and 1998 and the effects of realized gains and losses on cost of
sales and pretax earnings for 1999, 1998, and 1997 were not material. At
times during 1998, CITGO entered into commodity derivatives activities
that were not related to the hedging program discussed above. This
activity and resulting gains and losses were not material in 1998. There
was no non-hedging activity in 1999 or 1997.

OTHER CREDIT AND OFF-BALANCE SHEET RISK INFORMATION AS OF DECEMBER 31,
1999 - The Company has guaranteed approximately $14 million of debt of
certain CITGO marketers. Such debt is substantially collateralized by
assets of these entities. The Company has also guaranteed approximately
$101 million of debt of certain affiliates, including $50 million related
to HOVENSA (Note 2) and $11 million related to NISCO (Note 8). The Company
has outstanding letters of credit totaling approximately $545 million,
which includes $525 million related to the Company's tax-exempt and
taxable revenue bonds (Note 10). The Company has also acquired surety
bonds totaling $40 million primarily due to requirements of various
government entities. The Company does not expect liabilities to be
incurred related to such guarantees, letters of credit or surety bonds.

Neither the Company nor the counterparties are required to collateralize
their obligations under interest rate swaps or over-the-counter derivative
commodity agreements. The Company is exposed to credit loss in the event
of nonperformance by the counterparties to these agreements, but has no
off-balance sheet risk of accounting loss for the notional amounts. The
Company does not anticipate nonperformance by the counterparties, which
consist primarily of major financial institutions.

Management considers the market risk to the Company related to its
commodity and interest rate derivatives to be insignificant during the
periods presented.


F-24
56



14. LEASES

The Company leases certain of its Corpus Christi refinery facilities under
a capital lease. The basic term of the lease expires on January 1, 2004;
however, the Company may renew the lease until January 31, 2011, the date
of its option to purchase the facilities for a nominal amount. Capitalized
costs included in property, plant and equipment related to the leased
assets were approximately $209 million at December 31, 1999 and 1998.
Accumulated amortization related to the leased assets was approximately
$110 million and $102 million at December 31, 1999 and 1998, respectively.
Amortization is included in depreciation expense.

The Company also has various noncancelable operating leases, primarily for
product storage facilities, office space, computer equipment and vehicles.
Rent expense on all operating leases totaled $35 million in 1999, $34
million in 1998, and $39 million in 1997. Future minimum lease payments
for the capital lease and noncancelable operating leases are as follows:





CAPITAL OPERATING
LEASE LEASES TOTAL
YEAR (000'S OMITTED)


2000 $ 27,375 $ 34,586 $ 61,961
2001 27,375 30,833 58,208
2002 27,375 25,311 52,686
2003 27,375 18,665 46,040
2004 5,000 15,238 20,238
Thereafter 31,000 26,077 57,077
-------- --------- --------
Total minimum lease payments 145,500 $150,710 $296,210
Amount representing interest (43,574) ========= ========
--------
Present value of minimum lease payments 101,926
Current portion 16,356
--------

$ 85,570
========


15. FAIR VALUE INFORMATION

The following estimated fair value amounts have been determined by the
Company, using available market information and appropriate valuation
methodologies. However, considerable judgment is necessarily required in
interpreting market data to develop the estimates of fair value.
Accordingly, the estimates presented herein are not necessarily indicative
of the amounts that the Company could realize in a current market
exchange. The use of different market assumptions and/or estimation
methodologies may have a material effect on the estimated fair value
amounts.


F-25
57

The carrying amounts of cash equivalents, restricted cash and
variable-rate debt approximate fair values. The carrying amounts and
estimated fair values of the Company's other financial instruments are as
follows:




1999 1998
-------------------------------- ---------------------------------
CARRYING FAIR CARRYING FAIR
AMOUNT VALUE AMOUNT VALUE
(000'S OMITTED) (000'S OMITTED)

LIABILITIES:
Short-term bank loans $ 16,000 $ 16,000 $ 37,000 $ 37,000
Long-term debt 1,439,300 1,421,702 1,306,348 1,292,050

DERIVATIVE AND OFF-BALANCE
SHEET FINANCIAL INSTRUMENTS -
UNREALIZED LOSSES:
Interest rate swap agreements -- (1,281) -- (2,983)
Guarantees of debt -- (898) -- (601)
Letters of credit -- (4,284) -- (2,896)
Surety bonds -- (159) -- (147)



SHORT-TERM BANK LOANS AND LONG-TERM DEBT - The fair value of short-term
bank loans and long-term debt is based on interest rates that are
currently available to the Company for issuance of debt with similar terms
and remaining maturities.

INTEREST RATE SWAP AGREEMENTS - The fair value of these agreements is
based on the estimated amount that the Company would receive or pay to
terminate the agreements at the reporting dates, taking into account
current interest rates and the current creditworthiness of the
counterparties.

GUARANTEES, LETTERS OF CREDIT AND SURETY BONDS - The estimated fair value
of contingent guarantees of third-party debt, letters of credit and surety
bonds is based on fees currently charged for similar one-year agreements
or on the estimated cost to terminate them or otherwise settle the
obligations with the counterparties at the reporting dates.

The fair value estimates presented herein are based on pertinent
information available to management as of the reporting dates. Although
management is not aware of any factors that would significantly affect the
estimated fair value amounts, such amounts have not been comprehensively
revalued for purposes of these financial statements since that date, and
current estimates of fair value may differ significantly from the amounts
presented herein.

F-26
58

16. QUARTERLY RESULTS OF OPERATIONS - UNAUDITED

The following is a summary of the quarterly results of operations for the
years ended December 31, 1999 and 1998:



1ST QTR. 2ND QTR. 3RD QTR. 4TH QTR.
(000'S OMITTED)
1999


Sales $ 2,256,466 $ 3,153,238 $ 3,671,547 $ 4,235,970
=========== =========== =========== ===========
Cost of sales and operating expenses $ 2,048,612 $ 3,037,583 $ 3,554,336 $ 4,156,065
=========== =========== =========== ===========

Net income $ 86,219 $ 24,893 $ 32,588 $ 2,784
=========== =========== =========== ===========
1998

Sales $ 2,741,694 $ 2,935,889 $ 2,718,308 $ 2,515,830
=========== =========== =========== ===========
Cost of sales and operating expenses $ 2,555,147 $ 2,773,602 $ 2,540,806 $ 2,470,664
=========== =========== =========== ===========

Net income (loss) $ 83,396 $ 56,480 $ 71,310 $ (17,196)
=========== =========== =========== ===========




******
F-27
59

EXHIBIT INDEX



EXHIBIT
NUMBER DESCRIPTION
- ------- ------------

*3.1 Certificate of Incorporation, Certificate of Amendment of
Certificate of Incorporation and By-laws of CITGO Petroleum
Corporation.

*4.1 Indenture, dated as of May 1, 1996, between CITGO Petroleum
Corporation and the First National Bank of Chicago, relating
to the 7 7/8% Senior Notes due 2006 of CITGO Petroleum
Corporation.

*4.2 Form of Senior Note (included in Exhibit 4.1).

**10.1 Crude Supply Agreement between CITGO Petroleum Corporation and
Petroleos de Venezuela, S.A., dated as of September 30, 1986.

**10.2 Supplemental Crude Supply Agreement dated as of September 30,
1986 between CITGO Petroleum Corporation and Petroleos de
Venezuela, S.A.

**10.3 Crude Oil and Feedstock Supply Agreement dated as of March 31,
1987 between Champlin Refining Company and Petroleos de
Venezuela, S.A.

**10.4 Supplemental Crude Oil and Feedstock Supply Agreement dated as
of March 31, 1987 between Champlin Refining Company and
Petroleos de Venezuela, S.A.

**10.5 Contract for the Purchase/Sale of Boscan Crude Oil dated as of
June 2, 1993 between Tradecal, S.A. and CITGO Asphalt Refining
Company.

**10.6 Restated Contract for the Purchase/Sale of Heavy/Extra Heavy
Crude Oil dated December 28, 1990 among Maraven, S.A.,
Lagoven, S.A. and Seaview Oil Company.

**10.7 Sublease Agreement dated as of March 31, 1987 between Champlin
Petroleum Company, Sublessor, and Champlin Refining Company,
Sublessee.

**10.8 Operating Agreement dated as of May 1, 1984 among Cit-Con Oil
Corporation, CITGO Petroleum Corporation and Conoco, Inc.

**10.9 Amended and Restated Limited Liability Company Regulations of
LYONDELL-CITGO Refining Company, Ltd., dated July 1, 1993.

**10.10 Contribution Agreement between Lyondell Petrochemical Company
and LYONDELL-CITGO Refining Company, Ltd. and Petroleos de
Venezuela, S.A.

**10.11 Crude Oil Supply Agreement between LYONDELL-CITGO Refining
Company, Ltd. and Lagoven, S.A. dated as of May 5, 1993.

**10.12 Supplemental Supply Agreement dated as of May 5, 1993 between
LYONDELL-CITGO Refining Company, Ltd. and Petroleos de
Venezuela, S.A.

**10.13 Tax Allocation Agreement dated as of June 24, 1993 among PDV
America, Inc., VPHI Midwest, Inc., CITGO Petroleum Corporation
and PDV USA, Inc., as amended.

**10.14 CITGO Credit Facility.

*10.15(i) First Amendment to the Second Amended and Restated Senior Term
Loan Agreement, by and between CITGO Petroleum Corporation and
Bank of America National Trust and Savings Association et al,
dated as of February 15, 1994.



60




*10.15(ii) Second Amendment to Second Amended and Restated Senior Term
Loan Agreement by and among CITGO Petroleum Corporation and
Bank of America Illinois et al, dated as of October 21, 1994.

*10.15(iii) First Amendment to the Second Amended and Restated Senior
Revolving Credit Facility Agreement by and among CITGO
Petroleum Corporation and Bank of America National Trust and
Savings Association et al, dated as of February 15, 1994.

*10.15(iv) Second Amendment to Second Amended and Restated Senior
Revolving Credit Facility Agreement by and among CITGO
Petroleum Corporation and Bank of America Illinois et al,
dated as of October 21, 1994.

*10.16 Master Shelf Agreement (1994) by and between Prudential
Insurance Company of America and CITGO Petroleum Corporation
($100,000,000), dated March 4, 1994.

*10.17(i) Letter Agreement by and between the Company and Prudential
Insurance Company of America, dated March 4, 1994.

*10.17(ii) Letter Amendment No. 1 to Master Shelf Agreement with
Prudential Insurance company of America, dated November 14,
1994.

**10.18 CITGO Senior Debt Securities (1991) Agreement.

*10.19 CITCON Credit Agreement between CITCON Oil Corporation and The
Chase Manhattan Bank N.A., as Agent, dated as of April 30,
1992.

*10.20(i) First Amendment to the CITCON Credit Agreement, between CITCON
Oil Corporation and The Chase Manhattan Bank (National
Association), dated as of June 30, 1992.

*10.20(ii) Second Amendment to the CITCON Credit Agreement, between
CITCON Oil Corporation and The Chase Manhattan Bank (National
Association), dated as of March 31, 1994.

*10.20(iii) Third Amendment to the CITCON Credit Agreement, between CITCON
Oil Corporation and The Chase Manhattan Bank (National
Association), dated as of June 10, 1994.

***10.21 Selling Agency Agreement dated as of October 28, 1997 among
CITGO Petroleum Corporation, Salomon Brothers Inc. and Chase
Securities Inc.

****10.22 $150,000,000 Credit Agreement dated May 13, 1998.

****10.23 $400,000,000 Credit Agreement dated May 13, 1998.

****10.24 Limited Partnership Agreement of LYONDELL-CITGO Refining LP,
dated December 31, 1998.

12.1 Computation of Ratio of Earnings to Fixed Charges.

23.1 Consent of Independent Auditors.

27 Financial Data Schedule (filed electronically only).
- -------------


* Previously filed in connection with the Registrant's Report on Form 10,
Registration No. 333-3226.

** Incorporated by reference to the Registration Statement on Form F-1 of
PDV America, Inc. (No. 33-63742).

*** Incorporated by reference to the Registrant's Report on Form 8-K filed
with the Commission on November 18, 1997.

**** Incorporated by reference to the Registrant's Report on Form 10-K filed
with the Commission on March 17, 1999.