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united STATES
SECURITIES AND EXCHANGE COMMISSION
WASHINGTON, D.C. 20549

FORM 10-Q

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

FOR THE QUARTERLY PERIOD ENDED JUNE 30, 2004

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 1-1098

COLUMBIA ENERGY GROUP
-----------------------------------------------------
(Exact name of registrant as specified in its charter)

Delaware 13-1594808
------------------------------- -------------------
(State or other jurisdiction of (I.R.S. Employer
incorporation or organization) Identification No.)

801 East 86th Avenue
Merrillville, Indiana 46410
---------------------------------------- ----------
(Address of principal executive offices) (Zip Code)

Registrant's telephone number, including area code (877) 647-5990

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 [ ]

Indicate by check mark whether the registrant is an accelerated filer (as
defined in Exchange Act Rule 12b-2).
Yes[ ] No[X]

The registrant meets the conditions set forth in General Instructions H(1)(a)
and (b) of Form 10-Q and is therefore filing this form with the reduced
disclosure format.



COLUMBIA ENERGY GROUP AND SUBSIDIARIES
FORM 10-Q QUARTERLY REPORT
FOR THE QUARTER ENDED JUNE 30, 2004

TABLE OF CONTENTS



Page
----

PART I FINANCIAL INFORMATION

Item 1. Financial Statements

Statements of Consolidated Income (Loss)................................ 3

Consolidated Balance Sheets............................................. 4

Statements of Consolidated Cash Flows................................... 6

Statements of Consolidated Comprehensive Income (Loss).................. 7

Notes to Consolidated Financial Statements.............................. 8

Item 2. Management's Narrative Analysis of Results of Operations................ 17

Item 3. Quantitative and Qualitative Disclosures About Market Risk.............. 23

Item 4. Controls and Procedures................................................. 23

PART II OTHER INFORMATION

Item 1. Legal Proceedings....................................................... 24

Item 2. Changes in Securities and Use of Proceeds............................... 25

Item 3. Defaults Upon Senior Securities......................................... 25

Item 4. Submission of Matters to a Vote of Security Holders..................... 25

Item 5. Other Information....................................................... 25

Item 6. Exhibits and Reports on Form 8-K........................................ 25

Signature........................................................................ 27


2



PART I

ITEM 1. FINANCIAL STATEMENTS

COLUMBIA ENERGY GROUP AND SUBSIDIARIES
STATEMENTS OF CONSOLIDATED INCOME (LOSS) (UNAUDITED)



Three Months Six Months
Ended June 30, Ended June 30,
-------------------- --------------------
(in millions) 2004 2003 2004 2003
- ------------------------------------------------------------- -------- -------- -------- --------

NET REVENUES
Gas Distribution $ 382.2 $ 314.1 $1,326.2 $1,317.4
Transmission and Storage 188.7 204.3 500.4 511.3
Other 22.3 16.4 47.5 37.2
Affiliated revenues 2.6 2.4 5.7 4.3
-------- -------- -------- --------
Gross Revenues 595.8 537.2 1,879.8 1,870.2
Cost of Sales 254.9 178.9 944.8 882.1
Cost of Sales - affiliated - - - 4.8
-------- -------- -------- --------
Total Net Revenues 340.9 358.3 935.0 983.3
-------- -------- -------- --------
OPERATING EXPENSES
Operation and maintenance 150.9 146.1 340.7 334.6
Depreciation and amortization 42.6 41.0 83.6 82.2
Loss on sale of assets 0.3 0.2 0.3 0.2
Other taxes 36.9 37.4 101.6 106.7
-------- -------- -------- --------
Total Operating Expenses 230.7 224.7 526.2 523.7
-------- -------- -------- --------
OPERATING INCOME 110.2 133.6 408.8 459.6
-------- -------- -------- --------
OTHER INCOME (DEDUCTIONS)
Interest expense (23.7) (20.7) (43.1) (42.4)
Interest expense - affiliated (0.2) (1.1) (1.2) (2.7)
Interest income 1.2 1.5 2.8 3.5
Interest income - affiliated 3.4 3.8 6.2 6.9
Other, net (0.2) - 0.9 0.2
-------- -------- -------- --------
Total Other Income (Deductions) (19.5) (16.5) (34.4) (34.5)
-------- -------- -------- --------
INCOME FROM CONTINUING OPERATIONS BEFORE INCOME TAXES 90.7 117.1 374.4 425.1
INCOME TAXES 34.2 46.0 140.4 161.7
-------- -------- -------- --------
INCOME FROM CONTINUING OPERATIONS 56.5 71.1 234.0 263.4
-------- -------- -------- --------
Loss from Discontinued Operations - net of taxes (0.7) (0.7) (3.7) (1.4)
Loss on Disposition of Discontinued Operations - net of taxes - (125.4) - (81.0)
Change in Accounting - net of taxes - - - (16.8)
-------- -------- -------- --------
NET INCOME (LOSS) $ 55.8 $ (55.0) $ 230.3 $ 164.2
======== ======== ======== ========


The accompanying Notes to Consolidated Financial Statements are an integral part
of these statements.

3



ITEM 1. FINANCIAL STATEMENTS (continued)

COLUMBIA ENERGY GROUP AND SUBSIDIARIES
CONSOLIDATED BALANCE SHEETS



JUNE 30, December 31,
(in millions) 2004 2003
- ------------------------------------------------------------------------- ----------- ------------
(unaudited)

ASSETS
PROPERTY, PLANT AND EQUIPMENT
Utility Plant $ 8,248.8 $ 8,248.9
Accumulated depreciation and amortization (3,687.5) (3,696.4)
--------- ---------
Net utility plant 4,561.3 4,552.5
--------- ---------
Other property, at cost, less accumulated depreciation 1.8 1.8
--------- ---------
Net Property, Plant and Equipment 4,563.1 4,554.3
--------- ---------
INVESTMENTS AND OTHER ASSETS
Assets of discontinued operations and assets held for sale 20.7 20.7
Unconsolidated affiliates 35.2 33.5
Other investments 45.1 40.9
--------- ---------
Total Investments 101.0 95.1
--------- ---------
CURRENT ASSETS
Cash and cash equivalents 4.8 13.7
Cash invested in the NiSource money pool 688.1 56.2
Restricted cash 0.8 3.6
Accounts receivable (less reserves of $26.2 and $15.5, respectively) 78.7 266.4
Affiliated accounts receivable 31.1 33.1
Unbilled revenue (less reserves of $0.4 and $2.1, respectively) 79.3 181.0
Gas inventory 138.2 246.3
Underrecovered gas and fuel costs 118.4 163.7
Materials and supplies, at average cost 21.2 22.2
Price risk management assets 46.0 35.2
Exchange gas receivable 127.6 145.1
Regulatory assets 96.6 92.0
Prepayments and other 50.7 75.8
--------- ---------
Total Current Assets 1,481.5 1,334.3
--------- ---------
OTHER ASSETS
Price risk management assets 108.7 110.5
Regulatory assets 350.3 338.7
Intangible assets, less accumulated amortization 0.9 0.9
Deferred charges and other 93.3 89.1
--------- ---------
Total Other Assets 553.2 539.2
--------- ---------
TOTAL ASSETS $ 6,698.8 $ 6,522.9
========= =========


The accompanying Notes to Consolidated Financial Statements are an integral part
of these statements.

4



ITEM 1. FINANCIAL STATEMENTS (continued)

COLUMBIA ENERGY GROUP AND SUBSIDIARIES
CONSOLIDATED BALANCE SHEETS (CONTINUED)



JUNE 30, December 31,
(in millions) 2004 2003
- --------------------------------------------------------------------- ----------- ------------
(unaudited)

CAPITALIZATION AND LIABILITIES
CAPITALIZATION
Common Stock Equity $ 2,813.5 $ 2,568.6
Long-term debt, excluding amounts due within one year 1,356.8 1,368.1
----------- ------------
Total Capitalization 4,170.3 3,936.7
----------- ------------
CURRENT LIABILITIES
Current portion of long-term debt 0.3 0.3
Accounts payable 226.6 206.9
Accounts payable - affiliated 19.8 25.8
Customer deposits 24.0 24.2
Taxes accrued 153.7 147.1
Interest accrued 10.9 13.6
Overrecovered gas and fuel costs 6.7 2.3
Price risk management liabilities 1.2 3.3
Exchange gas payable 248.2 288.4
Current deferred revenue 22.8 19.6
Regulatory liabilities 82.8 71.3
Accrued liability for postretirement and postemployment benefits 26.3 22.8
Other accruals 219.2 295.4
----------- ------------
Total Current Liabilities 1,042.5 1,121.0
----------- ------------
OTHER LIABILITIES AND DEFERRED CREDITS
Deferred income taxes 793.1 747.3
Deferred investment tax credits 26.2 26.9
Deferred credits 47.5 49.1
Noncurrent deferred revenue 92.4 112.9
Accrued liability for postretirement and postemployment benefits 96.8 103.1
Regulatory liabilities and other cost of removal 311.2 309.1
Other noncurrent liabilities 118.8 116.8
----------- ------------
Total Other 1,486.0 1,465.2
----------- ------------
COMMITMENTS AND CONTINGENCIES - -
----------- ------------
TOTAL CAPITALIZATION AND LIABILITIES $ 6,698.8 $ 6,522.9
=========== ============


The accompanying Notes to Consolidated Financial Statements are an integral part
of these statements.

5



ITEM 1. FINANCIAL STATEMENTS (continued)

COLUMBIA ENERGY GROUP AND SUBSIDIARIES
STATEMENTS OF CONSOLIDATED CASH FLOWS (UNAUDITED)



Six Months Ended June 30, (in millions) 2004 2003
- ----------------------------------------------------------------- -------- --------

OPERATING ACTIVITIES
Net Income $ 230.3 $ 164.2
Adjustments to reconcile net income to net cash from
continuing operations:
Depreciation and amortization 83.6 82.2
Net changes in price risk management assets and liabilities 0.9 (19.4)
Deferred income taxes and investment tax credits 34.6 59.9
Deferred revenue (17.2) (2.9)
Amortization of unearned compensation 0.4 0.2
Loss on sale of assets 0.3 0.2
Change in accounting - 16.8
Loss from sale of discontinued operations - 81.0
Loss from discontinued operations 3.7 1.4
Other 0.7 0.7
Changes in assets and liabilities:
Restricted cash 2.8 24.2
Accounts receivable, net 282.1 80.1
Inventories 109.1 91.1
Accounts payable (27.1) (62.2)
Customer deposits (0.2) (0.5)
Taxes accrued 6.4 (14.6)
Interest accrued (2.7) 12.2
(Under) Overrecovered gas and fuel costs 49.8 54.2
Exchange gas receivable/payable 27.5 (155.5)
Other accruals (78.4) (67.4)
Prepayments and other current assets 23.8 25.2
Regulatory assets/liabilities 2.3 (18.9)
Postretirement and postemployment benefits (2.9) (9.9)
Deferred credits (1.6) 5.8
Deferred charges and other noncurrent assets (4.8) (6.4)
Other noncurrent liabilities 1.7 (9.2)
-------- --------
Net Cash from Continuing Operations 725.1 332.5
-------- --------
Net Cash used for Discontinued Operations - (58.8)
-------- --------
Net Cash from Operating Activities 725.1 273.7
-------- --------
INVESTMENT ACTIVITIES
Capital expenditures (95.5) (74.4)
Proceeds from disposition of assets - 95.9
Other investing activities (6.6) (17.4)
-------- --------
Net Cash Flows (used for) or from Investment Activities (102.1) 4.1
-------- --------
FINANCING ACTIVITIES
Changes in short-term debt - (0.8)
-------- --------
Net Cash Flows used for Financing Activities - (0.8)
-------- --------
Increase in cash and cash equivalents 623.0 277.0
Cash and temporary cash investments at beginning of year 69.9 14.5
-------- --------
CASH AND CASH EQUIVALENTS AT END OF PERIOD $ 692.9 $ 291.5
======== ========
SUPPLEMENTAL DISCLOSURES OF CASH FLOW INFORMATION
Cash paid for interest 47.6 32.9
Interest capitalized 0.7 0.7
Cash paid for income taxes 73.4 101.6
-------- --------


The accompanying Notes to Consolidated Financial Statements are an integral part
of these statements.

6



ITEM 1. FINANCIAL STATEMENTS (continued)

COLUMBIA ENERGY GROUP AND SUBSIDIARIES
STATEMENTS OF CONSOLIDATED COMPREHENSIVE INCOME (LOSS) (UNAUDITED)



Three Months Six Months
Ended June 30, Ended June 30,
---------------- ----------------
(in millions) 2004 2003 2004 2003
- ------------------------------------------------- ------ ------ ------ ------

Net Income (Loss) $ 55.8 $(55.0) $230.3 $164.2
Other comprehensive income, net of tax
Foreign currency translation adjustment - 0.6 - 1.5
Net unrealized gains on cash flow hedges 1.9 20.5 13.0 29.3
Net loss on available for sale securities (0.8) - (0.5) -
------ ------ ------ ------
Total other comprehensive income, net of tax 1.1 21.1 12.5 30.8
------ ------ ------ ------
Total Comprehensive Income (Loss) $ 56.9 $(33.9) $242.8 $195.0
------ ------ ------ ------


The accompanying Notes to Consolidated Financial Statements are an integral part
of these statements.

7



ITEM 1. FINANCIAL STATEMENTS (continued)

COLUMBIA ENERGY GROUP AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED) (unaudited)

1. BASIS OF ACCOUNTING PRESENTATION

The accompanying unaudited consolidated financial statements for Columbia Energy
Group (Columbia) reflect all normal recurring adjustments that are necessary, in
the opinion of management, to present fairly the results of operations in
accordance with accounting principles generally accepted in the United States of
America.

The accompanying financial statements should be read in conjunction with the
consolidated financial statements and notes thereto included in Columbia's
Annual Report on Form 10-K for the fiscal year ended December 31, 2003. Income
for interim periods may not be indicative of results for the calendar year due
to weather variations and other factors. Certain reclassifications have been
made to the 2003 financial statements to conform to the 2004 presentation.

2. REGULATORY MATTERS

Through October 2004, Columbia Gas of Ohio, Inc. (Columbia of Ohio) is operating
under a regulatory stipulation approved by the Public Utilities Commission of
Ohio (PUCO). On October 9, 2003, Columbia of Ohio and other parties filed with
the PUCO an amended stipulation that would govern Columbia of Ohio's regulatory
framework from November 2004 through October 2010. The majority of Columbia of
Ohio's contracts with interstate pipelines expire in October 2004, and the
amended stipulation would permit Columbia of Ohio to renew those contracts for
firm capacity sufficient to meet up to 100% of the design peak day requirements
through October 31, 2005 and up to 95% of the design peak day requirements
through October 31, 2010. Among other things, the amended stipulation would
also: (1) extend Columbia of Ohio's CHOICE(R) program through October 2010; (2)
provide Columbia of Ohio with an opportunity to generate revenues sufficient to
cover the stranded costs associated with the CHOICE(R) program; and (3) allow
Columbia of Ohio to record post-in-service carrying charges on plant placed into
service after October 2004, and to defer the property taxes and depreciation
associated with such plant.

On March 11, 2004, the PUCO issued an order that adopted and modified the
stipulation from Columbia of Ohio and a collaborative of parties. The order
extended Columbia of Ohio's CHOICE(R) program. However, the order limited the
time period of the stipulation through December 31, 2007 and declined to
pre-approve the amount of interstate pipeline firm capacity for which Columbia
of Ohio could contract. In addition, the PUCO made other modifications which
would limit Columbia of Ohio's ability to generate additional revenues
sufficient to cover stranded costs, including declining to mandate that natural
gas marketers participating in the CHOICE(R) program obtain 75% of their
interstate capacity directly from Columbia of Ohio and changing the allocation
of revenues generated through off-system sales. The order allows Columbia of
Ohio to record post-in-service carrying charges on plant placed in service after
October 2004 and allows the deferral of property taxes and depreciation
associated with such plant.

On April 9, 2004, Columbia of Ohio and other signatory parties to the
stipulation, consistent with standard regulatory process, petitioned the PUCO
for rehearing on the components which have been modified. That same day the
Office of the Ohio Consumers' Counsel (OCC) also filed an application for
rehearing, and argued that the PUCO should not have permitted Columbia of Ohio
to record post-in-service carrying charges on plant placed into service after
October 2004, and to defer the property taxes and depreciation associated with
such plant. On April 19, 2004, the OCC filed a motion to dismiss the application
for rehearing filed by Columbia of Ohio and other parties.

On May 5, 2004 the PUCO issued an order on rehearing, in which it denied the
OCC's motion to dismiss and its application for rehearing. The PUCO granted, in
part, the joint application filed by Columbia of Ohio and others. In granting
the joint application for rehearing, in part, the PUCO did the following: (1)
revised the term of the stipulation so that it runs through October 31, 2008;
(2) restored the marketers' responsibility for 75% of CHOICE(R) costs; and (3)
revised the mechanism applicable to Columbia of Ohio's sharing of off-system
sales and capacity release revenue. Under the revised off-system sales/capacity
release revenue sharing mechanism, Columbia of Ohio must now begin sharing such
revenue equally with the customers when the annual revenue exceeds $25 million,
instead of $35 million as originally proposed by Columbia of Ohio and other
collaborative parties.

8



ITEM 1. FINANCIAL STATEMENTS (continued)

COLUMBIA ENERGY GROUP AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED) (unaudited)

In a letter docketed on May 12, 2004, Columbia of Ohio and the other signatory
parties to the stipulation accepted the PUCO's modifications. On May 14, 2004,
the OCC filed a Second Application for Rehearing. In the pleading, the OCC
argued that the joint applicants did not meet the statutory requirements for an
application for rehearing, and thus the PUCO's order on rehearing granting
rehearing was unlawful. The OCC also argued that the rehearing was the result of
exclusionary settlement negotiations. The OCC continued to disagree with the
PUCO's treatment of off-system sales and capacity release revenues, and
post-in-service carrying charges and related deferrals.

On June 3, 2004, Columbia of Ohio filed its proposed tariffs and accounting, as
required. On June 9, 2004, the PUCO denied the OCC's Second Application for
Rehearing. On July 29, 2004, the OCC filed an appeal with the Supreme Court of
Ohio, contesting the PUCO's May 5, 2004 order on rehearing, which granted in
part Columbia of Ohio's joint application for rehearing, and the PUCO's June 9,
2004 order, denying the OCC's Second Application for Rehearing.

On December 17, 2003, the PUCO approved an application by Columbia of Ohio and
other Ohio local distribution companies (LDCs) to establish a tracking mechanism
that will provide for recovery of current bad debt expense and for the recovery
over a five-year period of previously deferred uncollected accounts receivable.
As of June 30, 2004, Columbia of Ohio has $46.9 million of uncollected accounts
receivable pending future recovery.

On June 11, 2004, Columbia Gas of Pennsylvania, Inc. (Columbia of Pennsylvania)
signed a settlement agreement ("Settlement Agreement") in its annual gas cost
recovery proceeding with The Office of Consumer Advocate, The Office of Small
Business Advocate, The Office of Trial Staff, and Commercial & Industrial
Intervenors. Under the Settlement Agreement, the signatory parties agreed to
financial incentive mechanisms for off-system sales and capacity release
transactions performed by Columbia of Pennsylvania. Under the incentive
mechanism, customers receive 100% of the total combined proceeds from off-system
sales and capacity release transactions up to a benchmark of $6.0 million. After
the benchmark is reached, Columbia of Pennsylvania will retain 50% of proceeds
from the transactions; however, Columbia of Pennsylvania may never retain more
than 40% of the actual net proceeds generated from off-system sales and capacity
release transactions. The incentive mechanism begins October 1, 2004 and ends on
September 30, 2006.

All of the Columbia distribution companies presently hold long-term contracts
for pipeline and storage services with its affiliate pipelines, Columbia Gas
Transmission Corporation (Columbia Transmission) and Columbia Gulf Transmission
Company (Columbia Gulf), and a majority of those contracts expire on October 31,
2004. The Columbia distribution companies are comprised of Columbia Gas of
Kentucky, Inc. (Columbia of Kentucky), Columbia Gas of Maryland, Inc. (Columbia
of Maryland), Columbia of Ohio, Columbia of Pennsylvania, and Columbia Gas of
Virginia, Inc. (Columbia of Virginia). Each distribution company continues to
discuss its plan to renew pipeline and storage contracts with industry
stakeholders to ensure the continued ability to serve the requirements of firm
customers in a tightening capacity market. All contract negotiations between the
distribution companies and Columbia Transmission and Columbia Gulf are expected
to be resolved prior to the contracts expiring. In addition, certain contracts
will be subject to the approval of the respective state regulatory agencies. On
April 29, 2004, the Pennsylvania Public Utility Commission approved a request by
Columbia of Pennsylvania to renew its pipeline and storage contracts with
Columbia Transmission and Columbia Gulf. Pursuant to this approval, Columbia of
Pennsylvania's storage contracts and approximately half of its pipeline
contracts will be renewed for terms of fifteen years, while the remaining
pipeline contracts will be renewed on a tiered basis for terms ranging from five
or ten years. Columbia of Pennsylvania will also acquire additional capacity to
meet customer requirements on peak days. In addition, on August 3, 2004, the
Virginia State Corporation Commission approved a request by Columbia of
Virginia, Inc. to renew its pipeline and storage contracts with Columbia
Transmission and Columbia Gulf. Pursuant to this approval, Columbia of
Virginia's storage and pipeline contracts with Columbia Transmission and
Columbia Gulf will be renewed for terms of fifteen years.

9



ITEM 1. FINANCIAL STATEMENTS (continued)

COLUMBIA ENERGY GROUP AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED) (unaudited)

On February 28, 2003, Columbia Transmission filed with Federal Energy Regulatory
Commission (FERC) certain scheduled annual rate adjustments, designated as the
Transportation Costs Rate Adjustment (TCRA), Retainage Adjustment Mechanism
(RAM), and Electric Power Cost Adjustment (EPCA). These filings sought recovery,
during the period April 1, 2003 through March 31, 2004, of certain expenses
relating to transportation costs incurred by Columbia Transmission on
interconnecting pipelines and electric costs incurred in the operation of
certain compressors (TCRA and EPCA, respectively), as well as quantities of gas
required by Columbia Transmission to operate its pipeline system RAM. The
recovery of each of these costs occurs through a "tracker" which ensures full
recovery of actual expenses. Each of the three filings was conditionally
accepted by FERC subject to refund and the filing of additional data by Columbia
Transmission. On October 1, 2003, FERC issued an order accepting Columbia
Transmission's TCRA filing, and accepting the full recovery of upstream
transportation costs. On February 11, 2004, FERC issued an order regarding the
annual EPCA filing, which upheld Columbia Transmission's ability to fully
recover its electric costs, but required Columbia Transmission to implement a
separate EPCA rate to recover electric power costs incurred by a newly expanded
electric-powered compressor station from specific customers. The order also
limits Columbia Transmission's ability to prospectively discount its EPCA rates.
Management does not believe this order will have a material financial impact. On
April 14, 2004 the FERC issued an order accepting Columbia Transmission's RAM
filing and approving the full recovery of gas required in system operations.
FERC will permit parties to pursue certain issues raised in the 2003 filing in
connection with consideration of Columbia Transmission's 2004 RAM filing, which
became effective April 1, 2004, and is currently pending.

3. RESTRUCTURING ACTIVITIES

Since 2000, Columbia has implemented restructuring initiatives to streamline its
operations and realize efficiencies from the acquisition of Columbia by NiSource
Inc. (NiSource). The restructuring activities were primarily associated with
reductions in headcount and facility exit costs.

For all of the restructuring plans, a total of approximately 915 management,
professional, administrative and technical positions have been identified for
elimination. As of June 30, 2004, approximately 900 employees were terminated,
of whom 1 employee and 3 employees were terminated during the quarter and six
months ended June 30, 2004, respectively. As of June 30, 2004 and December 31,
2003, the consolidated balance sheets reflected liabilities of $15.3 million and
$17.2 million related to the restructuring plans, respectively. During the
quarter and six months ended June 30, 2004, $1.2 million and $2.6 million in
payments were made, respectively, in association with the restructuring plans
and a $0.6 million net decrease and $0.7 million net increase, respectively, to
the restructuring liability was recorded mainly to adjust for facility exit
costs. Of the remaining restructuring liability, $13.0 million is related to
facility exit costs.

4. ASSETS HELD FOR SALE AND DISCONTINUED OPERATIONS

In May 2004, Columbia Transmission identified certain facilities as being
non-core to the operation of the pipeline system. As a result, Columbia
Transmission is in the process of selling these facilities to third parties.
Columbia has accounted for the assets of these facilities, with a net book value
of approximately $14.2 million, as assets held for sale.

On August 29, 2003, Columbia sold its exploration and production subsidiary,
Columbia Energy Resources, Inc. (CER), to a subsidiary of Triana Energy Holdings
(Triana). Under the CER sales agreement, Triana, an affiliate of Morgan Stanley
Dean Witter Capital Partners IV, L.P. (MSCP), purchased all of the stock of CER
for $330.0 million, plus the assumption of obligations to deliver approximately
94.0 billion cubic feet of natural gas pursuant to existing forward sales
contracts. The sale transferred 1.1 trillion cubic feet of natural gas reserves.
Approximately $220.0 million of after-tax cash proceeds from the sale were used
to reduce NiSource's debt. In addition, a $213.0 million liability related to
the forward sales contracts was removed from the balance sheet. On January 28,
2003, Columbia's former subsidiary Columbia Natural Resources, Inc. sold its
interest in certain natural gas exploration and production assets in New York
for approximately $95.0 million. Columbia has accounted for CER as discontinued
operations and has adjusted all periods presented accordingly.

10



ITEM 1. FINANCIAL STATEMENTS (continued)

COLUMBIA ENERGY GROUP AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED) (unaudited)

During 2002, Columbia decided to exit the telecommunications business. The
results of operations related to Columbia Transmission Communications
Corporation (Transcom) were displayed as discontinued operations on Columbia's
consolidated income statement and its assets and liabilities were separately
aggregated and reflected as assets and liabilities of discontinued operations on
the consolidated balance sheets. On September 15, 2003, Columbia sold 100% of
its shares in Transcom.

Results from discontinued operations of CER (including the New York State
properties) and Transcom are provided in the following table:



Three Months Six Months
Ended June 30, Ended June 30,
---------------- ----------------
(in millions) 2004 2003 2004 2003
- ---------------------------------------- ------ ------ ------ ------

REVENUES FROM DISCONTINUED OPERATIONS $ - $ 35.5 $ - $ 78.0
(Loss) Gain from discontinued operations (0.7) 1.7 (5.7) 5.2
Income tax (benefit) - 2.4 (2.0) 6.6
------ ------ ------ ------
NET LOSS FROM DISCONTINUED OPERATIONS $ (0.7) $ (0.7) $ (3.7) $ (1.4)
------ ------ ------ ------


The assets held for sale and assets of discontinued operations were net
property, plant, and equipment of $20.7 million at June 30, 2004 and December
31, 2003.

5. RISK MANAGEMENT ACTIVITIES

Columbia uses commodity-based derivative financial instruments to manage certain
risks in its business. Columbia accounts for its derivatives under Statement of
Financial Accounting Standards (SFAS) No. 133, "Accounting for Derivative
Instruments and Hedging Activities", as amended, (SFAS No. 133.)

HEDGING ACTIVITIES. The activity for the second quarter and six months ended
June 30, 2004 and June 30, 2003 affecting accumulated other comprehensive
income, with respect to cash flow hedges included the following:



Three Months Six Months
Ended June 30, Ended June 30,
---------------- ----------------
(in millions, net of tax) 2004 2003 2004 2003
- ----------------------------------------------------------- ------ ------ ------ ------

Net unrealized gains on derivatives qualifying as cash flow
hedges at the beginning of the period $ 98.7 $ 73.8 $ 87.6 $ 65.0

Unrealized hedging gains arising during the period on
derivatives qualifying as cash flow hedges 8.0 23.9 26.3 34.7

Reclassification adjustment for net loss included
in net income (6.1) (3.4) (13.3) (5.4)
------ ------ ------ ------
Net unrealized gains on derivatives qualifying as cash flow
hedges at the end of the period $100.6 $ 94.3 $100.6 $ 94.3
------ ------ ------ ------


11



ITEM 1. FINANCIAL STATEMENTS (continued)

COLUMBIA ENERGY GROUP AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED) (unaudited)

Unrealized gains and losses on Columbia's hedges were recorded as price risk
management assets and liabilities. The accompanying consolidated balance sheets
reflected price risk management assets related to unrealized gains on hedges of
$154.7 million and $145.7 million at June 30, 2004 and December 31, 2003,
respectively, of which $46.0 million and $35.2 million were included in "Current
Assets" and $108.7 million and $110.5 million were included in "Other Assets."

For regulatory incentive purposes, the Columbia distribution companies,
comprised of Columbia of Kentucky, Columbia of Maryland, Columbia of Ohio,
Columbia of Pennsylvania., and Columbia of Virginia enter into contracts that
allow counterparties the option to sell gas to Columbia LDCs at first of the
month prices for a particular month of delivery. Columbia LDCs charge the
counterparties a fee for this option. The changes in the fair value of the
options are primarily due to the changing expectations of the future intra-month
volatility of gas prices. Columbia LDCs defer a portion of the change in the
fair value of the options as either a regulatory asset or liability in
accordance with SFAS No. 71. The remaining change is recognized currently in
earnings. The consolidated balance sheets reflected $1.2 million and $3.3
million of price risk management liabilities associated with the programs at
June 30, 2004 and December 31, 2003, respectively.

During the second quarter 2004, no amounts were recognized in earnings due to
the change in value of certain derivative instruments, and there were no
components of the derivatives' fair values excluded in the assessment of hedge
effectiveness. Also, during the second quarter, Columbia reclassified no amounts
from other comprehensive income to earnings, due to the probability that certain
forecasted transactions would not occur. It is anticipated that during the next
twelve months the expiration and settlement of cash flow hedge contracts will
result in income recognition of amounts currently classified in other
comprehensive income of approximately $23.9 million, net of tax.

On May 12, 2004, Columbia terminated fixed-to-variable interest rate swap
agreements in a notional amount of $663.0 million with five counterparties.
Columbia received an aggregate settlement payment of $1.8 million, which is
being amortized as a reduction to interest expense over the remaining term of
the underlying debt.

6. RECENTLY ISSUED ACCOUNTING PRONOUNCEMENTS

FINANCIAL ACCOUNTING STANDARDS BOARD (FASB) INTERPRETATION NO. 46 (REVISED
DECEMBER 2003) -- CONSOLIDATION OF VARIABLE INTEREST ENTITIES. On January 17,
2003, the FASB issued Interpretation No. 46, "Consolidation of Variable Interest
Entities" (FIN 46R). FIN 46R requires a variable interest entity to be
consolidated by a company if that company is subject to a majority of the risk
of loss from the variable interest entity's activities or is entitled to receive
a majority of the entity's residual returns. A company that consolidates a
variable interest entity is called the primary beneficiary of that entity. In
general, a variable interest entity is a corporation, partnership, trust, or any
other legal structure used for business purposes that either (a) does not have
equity investors with voting rights, or (b) has equity investors that do not
provide sufficient financial resources for the entity to support its activities.
FIN 46R also requires various disclosures about variable interest entities that
a company is not required to consolidate but in which it has a significant
variable interest. On December 18, 2003, the FASB deferred the implementation of
FIN 46R to the first quarter of 2004. The adoption of FIN 46R on January 1, 2004
did not have an effect on Columbia's financial position or results of
operations.

FASB STAFF POSITION (FSP) NO. FAS 106-2 -- ACCOUNTING AND DISCLOSURE
REQUIREMENTS RELATED TO THE MEDICARE PRESCRIPTION DRUG, IMPROVEMENT AND
MODERNIZATION ACT OF 2003 (FSP 106-2). (SUPERSEDES FSP 106-1-- ACCOUNTING AND
DISCLOSURE REQUIREMENTS RELATED TO THE MEDICARE PRESCRIPTION DRUG, IMPROVEMENT
AND MODERNIZATION ACT OF 2003.) On December 8, 2003, the President of the United
States signed the Medicare Prescription Drug, Improvement and Modernization Act
into law. The Act introduces a prescription drug benefit under Medicare
(Medicare Part D) as well as a federal subsidy to sponsors of retiree health
care benefit plans that provide a benefit that is at least actuarially
equivalent to Medicare Part D. FASB Statement No. 106, "Employers' Accounting
for Postretirement Benefits Other Than Pensions," requires presently enacted
changes in relevant laws to be considered in current period measurements of
postretirement benefit costs and the Accumulated Projected Benefit Obligation.
FSP 106-2 is effective for fiscal interims beginning after June 15, 2004.
Columbia previously elected to defer accounting for the effects of this
pronouncement, as allowed by FSP 106-2, and will adopt FSP 106-

12



ITEM 1. FINANCIAL STATEMENTS (continued)

COLUMBIA ENERGY GROUP AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED) (unaudited)

2 in the third quarter of 2004. Columbia is currently evaluating the impact of
FSP 106-2 and believes the impact will not be significant, since Columbia has a
restrictive cap on its retiree post age 65drug coverage Plans.

7. LEGAL PROCEEDINGS

In the normal course of its business, Columbia and its subsidiaries have been
named as defendants in various legal proceedings. In the opinion of management,
the ultimate disposition of these currently asserted claims will not have a
material adverse impact on Columbia's consolidated financial position. Please
see Item 1, Part II, "Legal Proceedings," contained herein for more specific
information regarding current legal matters.

8. ACCUMULATED OTHER COMPREHENSIVE INCOME

The following table displays the components of Accumulated Other Comprehensive
Income, which is included in "Common Stock Equity," on the consolidated balance
sheets.



JUNE 30, December 31,
(in millions) 2004 2003
- ------------------------------------------------- -------- ------------

Net unrealized gains on cash flow hedges $ 100.6 $ 87.7
Net Gain on available for sale securities - 0.4
-------- --------
TOTAL ACCUMULATED OTHER COMPREHENSIVE INCOME, NET $ 100.6 $ 88.1
-------- --------


9. GUARANTEES AND INDEMNITIES

As a part of normal business, Columbia and certain subsidiaries enter into
various agreements providing financial or performance assurance to third parties
on behalf of other subsidiaries. Such agreements include guarantees. These
agreements are entered into primarily to support or enhance the creditworthiness
otherwise attributed to a subsidiary on a stand-alone basis, thereby
facilitating the extension of sufficient credit to accomplish the subsidiaries'
intended commercial purposes. The total commercial commitments in existence at
June 30, 2004 and the years in which they expire are:



(in millions) Total 2004 2005 2006 2007 2008 After
- ------------------------------- ------ ------ ------ ------ ------ ------ ------

Guarantees supporting commodity
transactions of subsidiaries $842.7 $ - $ 50.0 $607.2 $ 35.1 $ 54.0 $ 96.4
Other guarantees 154.9 - 50.7 - - - 104.2
------ ----- ------ ------ ------ ------ ------
Total commercial commitments $997.6 $ - $100.7 $607.2 $ 35.1 $ 54.0 $200.6
------ ----- ------ ------ ------ ------ ------


Columbia has issued guarantees, which support up to approximately $842.7 million
in commodity-related payments of forward gas sales agreements of a current
subsidiary and a former subsidiary and other commodity based guarantees. These
guarantees were provided to counterparties in order to facilitate physical and
financial transactions involving natural gas. To the extent liabilities exist
under the commodity-related contracts subject to these guarantees, such
liabilities are included in the consolidated balance sheets.

Columbia also has purchase and sales agreement guarantees totaling $137.5
million, which guarantee performance of the seller's covenants, agreements,
obligations, liabilities, representations and warranties under the agreements.
No amounts related to the purchase and sales agreement guarantees are reflected
in the consolidated balance sheet.

Management believes that the likelihood Columbia would be required to perform or
otherwise incur any significant losses associated with any of the aforementioned
guarantees is remote.

13



ITEM 1. FINANCIAL STATEMENTS (continued)

COLUMBIA ENERGY GROUP AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED) (unaudited)

Columbia has retained liabilities related to the CER forward gas sales
agreements with Mahonia II Limited (Mahonia) for guarantees of the forward sales
and for indemnity agreements with respect to surety bonds backing the forward
sales. The guarantees, surety bonds and associated indemnity agreements remain
in place subsequent to the closing of the CER sale and decline over time as
volumes are delivered in satisfaction of the contractual obligations, ending in
February 2006. Columbia will be indemnified by Triana, and MSCP will fund up to
a maximum of $221.0 million of additional equity to Triana to support Triana's
indemnity, for Triana's gas delivery and related obligations to Mahonia. The
MSCP commitment declines over time in concert with the surety bonds and the
guaranteed obligation to deliver gas to Mahonia.

Immediately after the closing of the sale, Triana owned approximately 1.1 Tcf of
proved reserves, and was capitalized with $330.0 million, approximately $200.0
million of which was provided as initial equity by MSCP and the remainder of
which is provided as part of a $500.0 million revolving credit facility.
Columbia believes that the combination of Triana's proved reserves, sufficient
capitalization, and access to the credit facility, combined with the Triana
indemnity and the $221.0 million of further commitments to Triana from MSCP,
adequately offset any risk of losses that may be incurred by Columbia due to
Triana's non-performance under the Mahonia agreements. Accordingly, Columbia has
not recognized a liability related to the retention of the Mahonia guarantees.

10. PENSION AND OTHER POSTRETIREMENT BENEFITS

Columbia used a measurement date of September 30, 2003 for the calculation of
its obligations under the pension and other postretirement benefit plans.
Columbia expects to make contributions of $14.9 million to its pension plans and
$27.4 million to its postretirement medical and life plans in 2004.

The following table provides the components of the plans' net periodic benefits
cost (benefit) for the second quarter and six months ended June 30, 2004 and
June 30, 2003:



PENSION BENEFITS OTHER BENEFITS
---------------- ----------------
Three months ended June 31, (in millions) 2004 2003 2004 2003
- ----------------------------------------- ------ ------ ------ ------

NET PERIODIC COST
Service cost $ 4.8 $ 4.3 $ 1.1 $ 0.9
Interest cost 12.5 12.9 5.2 4.9
Expected return on assets (15.8) (14.2) (3.2) (2.2)
Amortization of prior service cost 0.2 0.1 0.1 (0.1)
Recognized actuarial loss 0.3 0.8 0.5 0.2
------ ------ ------ ------
NET PERIODIC BENEFITS COST $ 2.0 $ 3.9 $ 3.7 $ 3.7
------ ------ ------ ------




PENSION BENEFITS OTHER BENEFITS
---------------- ----------------
Six months ended June 30, (in millions) 2004 2003 2004 2003
- ---------------------------------------- ------ ------ ------ ------

NET PERIODIC COST
Service cost $ 9.6 $ 8.6 $ 2.2 $ 1.8
Interest cost 25.0 25.8 10.4 9.8
Expected return on assets (31.6) (28.4) (6.4) (4.4)
Amortization of prior service cost 0.4 0.2 0.2 (0.2)
Recognized actuarial loss 0.6 1.6 1.0 0.4
------ ------ ------ ------
NET PERIODIC BENEFITS COST $ 4.0 $ 7.8 $ 7.4 $ 7.4
------ ------ ------ ------


14



ITEM 1. FINANCIAL STATEMENTS (continued)

COLUMBIA ENERGY GROUP AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED) (unaudited)

11. SALE OF TRADE RECEIVABLES

On May 14, 2004, Columbia of Ohio entered into an agreement to sell, without
recourse, substantially all of its trade receivables, as they originate, to
Columbia of Ohio Receivables Corporation (CORC), a wholly-owned subsidiary of
Columbia of Ohio. CORC, in turn, is party to an agreement, also dated May 14,
2004, in which it sells an undivided percentage ownership interest in the
accounts receivable to a commercial paper conduit sponsored by Dresdner
Kleinwort Wasserstein. The conduit can purchase up to $300.0 million of accounts
receivable under the agreement. The agreements, which replaced prior similar
agreements, expire in May 2005, but can be automatically renewed if mutually
agreed to by both parties. As of June 30, 2004, $164.8 million of accounts
receivable had been sold by CORC.

12. BUSINESS SEGMENT INFORMATION

Operating segments are components of an enterprise for which separate financial
information is available that is evaluated regularly by the chief operating
decision maker in deciding how to allocate resources and in assessing
performance.

During the second quarter 2003, Columbia re-aligned its reportable segments to
reflect the announced sale of its exploration and production operations. As of
the second quarter 2003, Columbia no longer reported an Exploration and
Production Operations segment. All periods have been adjusted to conform with
the realignment.

Columbia's operations are divided into three primary business segments. The Gas
Distribution Operations segment provides natural gas service and transportation
for residential, commercial and industrial customers in Ohio, Pennsylvania,
Virginia, Kentucky and Maryland. The Gas Transmission and Storage Operations
segment offers gas transportation and storage services for local distribution
companies, marketers and industrial and commercial customers located in
northeastern, mid-Atlantic, midwestern and southern states and the District of
Columbia. The Other Operations segment primarily includes ventures focused on
energy-related services.

15


ITEM 1. FINANCIAL STATEMENTS (continued)

COLUMBIA ENERGY GROUP AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED) (unaudited)

The following tables provide information about Columbia's business segments.
Columbia uses operating income (loss) as its primary measurement for each of the
reporting segments. Segment revenues include intersegment sales to affiliated
subsidiaries, which are eliminated in consolidation. Affiliated sales are
recognized on the basis of prevailing market prices, regulated prices or at
levels provided for under contractual agreements. Operating income is derived
from revenues and expenses directly associated with each segment.



Three Months Six Months
Ended June 30, Ended June 30,
-------------------- --------------------
(in millions) 2004 2003 2004 2003
- ------------------------------- -------- -------- -------- --------

REVENUES
GAS DISTRIBUTION
Unaffiliated $ 443.8 $ 387.2 $1,541.1 $1,548.5
Intersegment and affiliates - - - -
-------- -------- -------- --------
Total 443.8 387.2 1,541.1 1,548.5
-------- -------- -------- --------
TRANSMISSION AND STORAGE
Unaffiliated 132.0 140.8 297.6 302.8
Intersegment and affiliates 53.9 50.1 118.4 117.6
-------- -------- -------- --------
Total 185.9 190.9 416.0 420.4
-------- -------- -------- --------
OTHER
Unaffiliated 17.0 6.7 34.8 14.1
Intersegment and affiliates - 0.1 0.1 0.1
-------- -------- -------- --------
Total 17.0 6.8 34.9 14.2
-------- -------- -------- --------
Adjustments and eliminations (50.9) (47.7) (112.2) (112.9)
-------- -------- -------- --------
CONSOLIDATED REVENUES $ 595.8 $ 537.2 $1,879.8 $1,870.2
-------- -------- -------- --------

OPERATING INCOME (LOSS)
Gas Distribution $ 32.0 $ 47.8 $ 215.5 $ 253.9
Transmission and Storage 72.9 87.4 183.4 198.3
Other (0.1) (0.5) (0.6) (0.7)
Corporate 5.4 (1.1) 10.5 8.1
-------- -------- -------- --------
OPERATING INCOME $ 110.2 $ 133.6 $ 408.8 $ 459.6
-------- -------- -------- --------


16



ITEM 2. MANAGEMENT'S NARRATIVE ANALYSIS OF RESULTS OF OPERATIONS

COLUMBIA ENERGY GROUP AND SUBSIDIARIES

Columbia Energy Group (Columbia) meets the conditions specified in General
Instruction H(1)(a) and (b) to Form 10-Q and is permitted to use the reduced
disclosure format for wholly-owned subsidiaries of companies, such as NiSource
Inc. (NiSource), that are reporting companies under the Securities Exchange Act
of 1934. Accordingly, this Columbia Management's Narrative Analysis of Results
of Operations is included in this report, and Columbia has omitted from this
report the information called for by Part I. Item 2 (Management's Discussion and
Analysis of Financial Condition and Results of Operations).

NOTE REGARDING FORWARD-LOOKING STATEMENTS

The Management's Narrative Analysis of Results of Operations, including
statements regarding market risk sensitive instruments, contains
"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. Investors and prospective investors should understand that many
factors govern whether any forward-looking statement contained herein will be or
can be realized. Any one of those factors could cause actual results to differ
materially from those projected. These forward-looking statements include, but
are not limited to, statements concerning Columbia's plans, objectives, expected
performance, expenditures and recovery of expenditures through rates, stated on
either a consolidated or segment basis, and any and all underlying assumptions
and other statements that are other than statements of historical fact. From
time to time, Columbia may publish or otherwise make available forward-looking
statements of this nature. All such subsequent forward-looking statements,
whether written or oral and whether made by or on behalf of Columbia, are also
expressly qualified by these cautionary statements. All forward-looking
statements are based on assumptions that management believes to be reasonable;
however, there can be no assurance that actual results will not differ
materially.

Realization of Columbia's objectives and expected performance is subject to a
wide range of risks and can be adversely affected by, among other things,
weather, fluctuations in supply and demand for energy commodities, growth
opportunities for Columbia's businesses, increased competition in deregulated
energy markets, dealings with third parties over whom Columbia has no control,
actual operating experience of acquired assets, the regulatory process,
regulatory and legislative changes, changes in general economic, capital and
commodity market conditions, and counter-party credit risk, many of which risks
are beyond the control of Columbia. In addition, the relative contributions to
profitability by each segment, and the assumptions underlying the
forward-looking statements relating thereto, may change over time.

The following Management's Narrative Analysis should be read in conjunction with
the Columbia Annual Report on Form 10-K for the fiscal year ended December 31,
2003.

RESULTS OF OPERATIONS
THE QUARTER ENDED JUNE 30, 2004

Net Income

Columbia reported net income of $55.8 million for the three months ended June
30, 2004, compared to a net loss of $55.0 million for the second quarter 2003.
Operating income was $110.2 million, a decrease of $23.4 million from the same
period in 2003. Columbia's net income reflects the impact of the discontinued
operations, a $126.1 million loss in the second quarter of 2003, which included
the sale of Columbia Energy Resources (CER).

Net Revenues

Total consolidated net revenues (gross revenues less cost of sales) for the
three months ended June 30, 2004, were $340.9 million, a $17.4 million decrease
from the same period last year. Transmission and storage net revenues decreased
by $5.1 million due to a reduction in interruptible service revenues primarily
due to lower throughput, which were partially offset by an increase in demand
charge revenues. In addition, distribution net revenues decreased due to lower
non-traditional revenue amounting to $3.1 million, lower gross receipt taxes of
$2.4 million generally offset in operating expenses, and warmer weather of
approximately $1.1 million during the second quarter of 2004 compared with the
same period in 2003. The comparable 2003 period was also favorably impacted by
adjustments for gas costs associated with certain customers of $3.8 million.

17



ITEM 2. MANAGEMENT'S NARRATIVE ANALYSIS OF RESULTS OF OPERATIONS (continued)

COLUMBIA ENERGY GROUP AND SUBSIDIARIES

Expenses

Operating expenses for the second quarter 2004 were $230.7 million, an increase
of $6.0 million from the 2003 period. The increase in operating expenses was
mostly offset by a favorable impact of litigation settlements totaling $4.3
million, an adjustment of insurance reserves of $4.8 million and lower
uncollectible receivables expense of $4.1 million in the 2004 period. The
increase in operating expenses was a result of insurance refunds and reserve
adjustments of $9.6 million, the reversal of a litigation reserve upon
settlement amounting to $6.6 million and a revised allocation methodology of
corporate employee and administrative cost of $4.4 million in the 2003 period.

Other Income (Deductions)

Interest expense, net was $23.9 million for the quarter, an increase of $2.1
million compared to the second quarter 2003. The increase was due to the
termination of certain interest rate swap agreements partly offset by a
quarter-over-quarter reduction in short-term debt balances.

Income Taxes

Income tax expense for the second quarter of 2004 was $34.2 million, a decrease
of $11.8 million compared to the 2003 period, due to lower pre-tax income.

Discontinued Operations

The after-tax loss from discontinued operations was $0.7 million for the second
quarter 2004 versus an after-tax loss from discontinued operations of
$126.1 million in the second quarter of 2003. The current quarter after-tax loss
from discontinued operations is a result of residual liabilities associated with
the sale of Columbia's exploration and production subsidiary, CER, in August
2003. For the comparable quarter in 2003, the after-tax loss of $125.4 million
was related to the sale of CER. Columbia accounted for the CER as discontinued
operations as of June 30, 2003.

RESULTS OF OPERATIONS
SIX MONTHS ENDED JUNE 30, 2004

Net Income

Columbia reported net income of $230.3 million for the six months ended June 30,
2004, compared to net income of $164.2 million for the six months ended June 30,
2003. Operating income was $408.8 million, a decrease of $50.8 million from the
same period in 2003. Columbia's net income reflects the impact of the
discontinued operations, a $82.4 million loss in the first half of 2003, which
included the sale of CER and a change in accounting of $16.8 million from the
cumulative effect of adopting the Financial Accounting Standards Board statement
on asset retirement obligations.

Net Revenues

Total consolidated net revenues (gross revenues less cost of sales) for the six
months ended June 30, 2004, were $935.0 million, a $48.3 million decrease from
the same period last year. The decrease in net revenues was primarily a result
of reduced residential and commercial natural gas sales and deliveries due to
warmer weather of approximately $11.3 million, lower gross receipt taxes of $6.5
million generally offset in operating expenses, and lower non-traditional
revenue amounting to $4.5 million during the first half of 2004 compared with
the same period in 2003. Both the six-months ended June 30, 2004, and the
six-months ended June 30, 2003, reflect lower interruptible transmission service
revenues than those that have been historically realized. Management has
evaluated operational and market conditions, and anticipates that there will be
fewer opportunities for interruptible revenue on an ongoing basis. The
comparable 2003 period was also favorably impacted by adjustments for gas costs
associated with certain customers of $3.8 million.

Expenses

Operating expenses for the first six months of 2004 were $526.2 million, an
increase of $2.5 million from the 2003 period. Operation and maintenance
expenses for the first half of 2004 were $6.1 million higher than they were in
first half of 2003 primarily due to a reversal of a litigation reserve relating
to a lawsuit that was settled in the second quarter of 2003. Other taxes expense
for the first half of 2004 was $5.1 million lower than the first half of 2003
mainly as a result of lower gross receipt taxes, generally offset in net revues.

18



ITEM 2. MANAGEMENT'S NARRATIVE ANALYSIS OF RESULTS OF OPERATIONS (continued)

COLUMBIA ENERGY GROUP AND SUBSIDIARIES

Other Income (Deductions)

Interest expense, net was $44.3 million for the first half of 2004, a decrease
of $0.8 million compared to same period in 2003. The decrease was due to a
reduction in short-term debt balances partly offset by the termination of
certain interest rate swap agreements.

Income Taxes

Income tax expense for the first six months of 2004 was $140.4 million, a
decrease of $21.3 million compared to the 2003 period, due to lower pre-tax
income.

Discontinued Operations

The after-tax loss from discontinued operations was $3.7 million for the six
months ended June 30, 2004 versus an after-tax loss from discontinued operations
of $82.4 million for the comparable 2003 period. The current period's after-tax
loss from discontinued operations is a result of residual liabilities associated
with the sale of CER in August 2003. For the six months ended June 30, 2003 the
after-tax loss of $81.1 million was related to the sale of CER.

Change in Accounting

The change in accounting in the first half of 2003 of $16.8 million, net-of-tax,
resulted from the cumulative effect of adopting the Financial Accounting
Standards Board statement on asset retirement obligations.

LIQUIDITY AND CAPITAL RESOURCES

Generally, cash flow from operations has provided sufficient liquidity to meet
operating requirements. A significant portion of Columbia's operations, most
notably in the gas distribution and gas transportation businesses, is subject to
seasonal fluctuations in cash flow. During the heating season, which is
primarily from November through March, cash receipts from gas sales and
transportation services typically exceed cash requirements. Conversely, during
the remainder of the year, cash on hand together with external short-term
financing, is used to purchase gas to place in storage for heating season
deliveries, perform necessary maintenance of facilities, make capital
improvements in plant and expand service into new areas.

Net cash from continuing operations for the six months ended June 30, 2004 was
$725.1 million. Cash flow from working capital was $393.1 million, principally
driven by increased factoring of accounts receivable through an expanded
accounts receivable sales agreement and decreased gas inventories.

Columbia subsidiaries satisfy their liquidity requirements primarily through
internally generated funds and through intercompany borrowings from the NiSource
Money Pool. These subsidiaries may borrow, on an intercompany basis, a
cumulative maximum of $1.13 billion through the NiSource Money Pool as approved
by the Securities and Exchange Commission under the Public Utility Holding
Company Act of 1935. NiSource Finance Corp. provides funding to the NiSource
Money Pool from external borrowing sources and maintains an aggregate $1.25
billion revolving credit facility with a syndicate of banks. The credit facility
is guaranteed by NiSource. As of June 30, 2004, Columbia had $688.1 million in
the NiSource Money Pool.

Management believes that its sources of funding are sufficient to meet the
short-term and long-term liquidity needs of Columbia.

Sale of Trade Receivables

On May 14, 2004, Columbia Gas of Ohio, Inc. (Columbia of Ohio) entered into an
agreement to sell, without recourse, substantially all of its trade receivables,
as they originate, to Columbia of Ohio Receivables Corporation (CORC), a
wholly-owned subsidiary of Columbia of Ohio. CORC, in turn, is party to an
agreement, also dated May 14, 2004, in which it sells an undivided percentage
ownership interest in the accounts receivable to a commercial paper conduit
sponsored by Dresdner Kleinwort Wasserstein. The conduit can purchase up to
$300.0 million of accounts receivable under the agreement. The agreements, which
replaced prior similar agreements, expire in May 2005, but can be automatically
renewed if mutually agreed to by both parties. As of June 30, 2004, $164.8
million of accounts receivable had been sold by CORC.

19



ITEM 2. MANAGEMENT'S NARRATIVE ANALYSIS OF RESULTS OF OPERATIONS (continued)

COLUMBIA ENERGY GROUP AND SUBSIDIARIES

Non-Trading Risks

Commodity price risk resulting from non-trading activities at Columbia's
rate-regulated subsidiaries is limited, since current regulations allow recovery
of prudently incurred gas costs through the rate-making process. As states
experiment with regulatory reform, these subsidiaries may begin providing
services without the benefit of the traditional rate-making process and may be
more exposed to commodity price risk.

On May 12, 2004, Columbia terminated fixed-to-variable interest rate swap
agreements in a notional amount of $663.0 million with five counterparties.
Columbia received an aggregate settlement payment of $1.8 million, which is
being amortized as a reduction to interest expense over the remaining term of
the underlying debt.

OFF BALANCE SHEET ARRANGEMENTS

Columbia has issued guarantees that support up to approximately $842.7 million
of commodity-related payments to satisfy requirements under forward gas sales
agreements of a current subsidiary and a former subsidiary. These guarantees
were provided to counterparties to facilitate physical and financial
transactions involving natural gas. To the extent liabilities exist under the
commodity-related contracts subject to these guarantees, such liabilities are
included in the consolidated balance sheets. In addition, Columbia has other
guarantees, purchase commitments and operating leases. Refer to Note 5, Risk
Management Activities, and Note 9, Guarantees and Indemnities, of the Notes to
Consolidated Financial Statements for further discussion of Columbia's off
balance sheet arrangements.

In addition, Columbia has sold certain accounts receivable. Columbia's accounts
receivable program qualifies for sale accounting because it meets the conditions
specified in the Statement of Financial Accounting Standards (SFAS) No. 140
"Accounting for Transfers and Servicing of Financial Asset and Extinguishments
of Liabilities." In the agreements, all transferred assets have been isolated
from the transferor and put presumptively beyond the reach of the transferor and
its creditors, even in bankruptcy or other receivership. Columbia does not
retain any interest in the receivables under these programs.

OTHER INFORMATION

Regulatory Matters

Through October 2004, Columbia of Ohio is operating under a regulatory
stipulation approved by the Public Utilities Commission of Ohio (PUCO). On
October 9, 2003, Columbia of Ohio and other parties filed with the PUCO an
amended stipulation that would govern Columbia of Ohio's regulatory framework
from November 2004 through October 2010. The majority of Columbia of Ohio's
contracts with interstate pipelines expire in October 2004, and the amended
stipulation would permit Columbia of Ohio to renew those contracts for firm
capacity sufficient to meet up to 100% of the design peak day requirements
through October 31, 2005 and up to 95% of the design peak day requirements
through October 31, 2010. Among other things, the amended stipulation would
also: (1) extend Columbia of Ohio's CHOICE(R) program through October 2010; (2)
provide Columbia of Ohio with an opportunity to generate revenues sufficient to
cover the stranded costs associated with the CHOICE(R) program; and (3) allow
Columbia of Ohio to record post-in-service carrying charges on plant placed into
service after October 2004, and to defer the property taxes and depreciation
associated with such plant.

On March 11, 2004, the PUCO issued an order that adopted and modified the
stipulation from Columbia of Ohio and a collaborative of parties. The order
extended Columbia of Ohio's CHOICE(R) program. However, the order limited the
time period of the stipulation through December 31, 2007 and declined to
pre-approve the amount of interstate pipeline firm capacity for which Columbia
of Ohio could contract. In addition, the PUCO made other modifications which
would limit Columbia of Ohio's ability to generate additional revenues
sufficient to cover stranded costs, including declining to mandate that natural
gas marketers participating in the CHOICE(R) program obtain 75% of their
interstate capacity directly from Columbia of Ohio and changing the allocation
of revenues generated through off-system sales. The order allows Columbia of
Ohio to record post-in-service carrying charges on plant placed in service after
October 2004 and allows the deferral of property taxes and depreciation
associated with such plant.

20



ITEM 2. MANAGEMENT'S NARRATIVE ANALYSIS OF RESULTS OF OPERATIONS (continued)

COLUMBIA ENERGY GROUP AND SUBSIDIARIES

On April 9, 2004, Columbia of Ohio and other signatory parties to the
stipulation, consistent with standard regulatory process, petitioned the PUCO
for rehearing on the components which have been modified. That same day the
Office of the Ohio Consumers' Counsel (OCC) also filed an application for
rehearing, and argued that the PUCO should not have permitted Columbia of Ohio
to record post-in-service carrying charges on plant placed into service after
October 2004, and to defer the property taxes and depreciation associated with
such plant. On April 19, 2004, the OCC filed a motion to dismiss the application
for rehearing filed by Columbia of Ohio and other parties.

On May 5, 2004 the PUCO issued an order on rehearing, in which it denied the
OCC's motion to dismiss and its application for rehearing. The PUCO granted, in
part, the joint application filed by Columbia of Ohio and others. In granting
the joint application for rehearing, in part, the PUCO did the following: (1)
revised the term of the stipulation so that it runs through October 31, 2008;
(2) restored the marketers' responsibility for 75% of CHOICE(R) costs; and (3)
revised the mechanism applicable to Columbia of Ohio's sharing of off-system
sales and capacity release revenue. Under the revised off-system sales/capacity
release revenue sharing mechanism, Columbia of Ohio must now begin sharing such
revenue equally with the customers when the annual revenue exceeds $25 million,
instead of $35 million as originally proposed by Columbia of Ohio and other
collaborative parties.

In a letter docketed on May 12, 2004, Columbia of Ohio and the other signatory
parties to the stipulation accepted the PUCO's modifications. On May 14, 2004,
the OCC filed a Second Application for Rehearing. In the pleading, the OCC
argued that the joint applicants did not meet the statutory requirements for an
application for rehearing, and thus the PUCO's order on rehearing granting
rehearing was unlawful. The OCC also argued that the rehearing was the result of
exclusionary settlement negotiations. The OCC continued to disagree with the
PUCO's treatment of off-system sales and capacity release revenues, and
post-in-service carrying charges and related deferrals.

On June 3, 2004, Columbia of Ohio filed its proposed tariffs and accounting, as
required. On June 9, 2004, the PUCO denied the OCC's Second Application for
Rehearing. On July 29, 2004, the OCC filed an appeal with the Supreme Court of
Ohio, contesting the PUCO's May 5, 2004 order on rehearing, which granted in
part Columbia of Ohio's joint application for rehearing, and the PUCO's June 9,
2004 order, denying the OCC's Second Application for Rehearing.

On December 17, 2003, the PUCO approved an application by Columbia of Ohio and
other Ohio local distribution companies to establish a tracking mechanism that
will provide for recovery of current bad debt expense and for the recovery over
a five-year period of previously deferred uncollected accounts receivable. As of
June 30, 2004, Columbia of Ohio has $46.9 million of uncollected accounts
receivable pending future recovery.

On June 11, 2004, Columbia Gas of Pennsylvania, Inc. (Columbia of Pennsylvania)
signed a settlement agreement ("Settlement Agreement") in its annual gas cost
recovery proceeding with The Office of Consumer Advocate, The Office of Small
Business Advocate, The Office of Trial Staff, and Commercial & Industrial
Intervenors. Under the Settlement Agreement, the signatory parties agreed to
financial incentive mechanisms for off-system sales and capacity release
transactions performed by Columbia of Pennsylvania. Under the incentive
mechanism, customers receive 100% of the total combined proceeds from off-system
sales and capacity release transactions up to a benchmark of $6.0 million. After
the benchmark is reached, Columbia of Pennsylvania will retain 50% of proceeds
from the transactions; however, Columbia of Pennsylvania may never retain more
than 40% of the actual net proceeds generated from off-system sales and capacity
release transactions. The incentive mechanism begins October 1, 2004 and ends on
September 30, 2006.

All of the Columbia distribution companies presently hold long-term contracts
for pipeline and storage services with its affiliate pipelines, Columbia Gas
Transmission Corporation (Columbia Transmission) and Columbia Gulf Transmission
Company (Columbia Gulf), and a majority of those contracts expire on October 31,
2004. The Columbia distribution companies are comprised of Columbia Gas of
Kentucky, Inc. (Columbia of Kentucky), Columbia Gas of Maryland, Inc. (Columbia
of Maryland), Columbia of Ohio, Columbia of Pennsylvania, and Columbia Gas of
Virginia, Inc. (Columbia of Virginia). Each distribution company continues to
discuss its plan to renew pipeline and storage contracts with industry
stakeholders to ensure the continued ability to serve the requirements of firm
customers in a tightening capacity market. All contract negotiations between the
distribution companies and Columbia Transmission and Columbia Gulf are expected
to be resolved prior to the contracts expiring. In addition, certain contracts
will be subject to the approval of the respective state regulatory agencies. On
April 29, 2004, the Pennsylvania Public Utility Commission approved a request by
Columbia of Pennsylvania to

21



ITEM 2. MANAGEMENT'S NARRATIVE ANALYSIS OF RESULTS OF OPERATIONS (continued)

COLUMBIA ENERGY GROUP AND SUBSIDIARIES

renew its pipeline and storage contracts with Columbia Transmission and Columbia
Gulf. Pursuant to this approval, Columbia of Pennsylvania's storage contracts
and approximately half of its pipeline contracts will be renewed for terms of
fifteen years, while the remaining pipeline contracts will be renewed on a
tiered basis for terms ranging from five or ten years. Columbia of Pennsylvania
will also acquire additional capacity to meet customer requirements on peak
days. In addition, on August 3, 2004, the Virginia State Corporation Commission
approved a request by Columbia of Virginia, Inc. to renew its pipeline and
storage contracts with Columbia Transmission and Columbia Gulf. Pursuant to this
approval, Columbia of Virginia's storage and pipeline contracts with Columbia
Transmission and Columbia Gulf will be renewed for terms of fifteen years.

On February 28, 2003, Columbia Transmission filed with Federal Energy Regulatory
Commission (FERC) certain scheduled annual rate adjustments, designated as the
Transportation Costs Rate Adjustment (TCRA), Retainage Adjustment Mechanism
(RAM), and Electric Power Cost Adjustment (EPCA). These filings sought recovery,
during the period April 1, 2003 through March 31, 2004, of certain expenses
relating to transportation costs incurred by Columbia Transmission on
interconnecting pipelines and electric costs incurred in the operation of
certain compressors (TCRA and EPCA, respectively), as well as quantities of gas
required by Columbia Transmission to operate its pipeline system RAM. The
recovery of each of these costs occurs through a "tracker" which ensures full
recovery of actual expenses. Each of the three filings was conditionally
accepted by FERC subject to refund and the filing of additional data by Columbia
Transmission. On October 1, 2003, FERC issued an order accepting Columbia
Transmission's TCRA filing, and accepting the full recovery of upstream
transportation costs. On February 11, 2004, FERC issued an order regarding the
annual EPCA filing, which upheld Columbia Transmission's ability to fully
recover its electric costs, but required Columbia Transmission to implement a
separate EPCA rate to recover electric power costs incurred by a newly expanded
electric-powered compressor station from specific customers. The order also
limits Columbia Transmission's ability to prospectively discount its EPCA rates.
Management does not believe this order will have a material financial impact. On
April 14, 2004 the FERC issued an order accepting Columbia Transmission's RAM
filing and approving the full recovery of gas required in system operations.
FERC will permit parties to pursue certain issues raised in the 2003 filing in
connection with consideration of Columbia Transmission's 2004 RAM filing, which
became effective April 1, 2004, and is currently pending.

Environmental Matters

On April 1, 2004, U.S. Environmental Protection Agency (EPA) issued its final
Phase II nitrogen oxide (NOx) regulation establishing NOx budgets for states.
States will be developing State Implementation Plans (SIPs) which may impact
certain compressor station engines/turbines owned by Columbia Transmission and
Columbia Gulf. Columbia Transmission and Columbia Gulf will continue to closely
monitor the development of SIPs, but anticipates that the cost will not be
material.

The EPA has issued maximum achievable control technology (MACT) standards for
hazardous air pollutants for stationary combustion turbines and reciprocating
internal combustion engines. The final standards for turbines do not impose any
compliance costs. The MACT for internal reciprocating internal combustion
engines will only impact one Columbia Transmission facility and the estimated
cost of compliance is expected to be immaterial.

On April 15, 2004 EPA finalized the 8-hour ozone non-attainment area
designations. Following designation of the 8-hour ozone non-attainment areas,
the Clean Air Act provides for a process for promulgation of rules specifying a
compliance level, compliance deadline, and necessary controls to be implemented
within designated areas. Resulting state rules could require additional
reductions in NOx. Columbia Transmission and Columbia Gulf will closely monitor
implementation of the rules. While the outcome of such rulemakings is uncertain,
the cost could be significant.

Proposed Millennium Pipeline Project

The proposed Millennium Pipeline Project (Millennium), in which Columbia
Transmission is participating and will serve as developer and operator, will
provide access to a number of supply and storage basins and the Dawn, Ontario
trading hub. The project is now being marketed in two phases. Phase 1 of the
project is an expansion of the Algonquin Pipeline extending from Ramapo, N.Y and
connecting to the Empire State Pipeline (Empire), an existing pipeline that
originates at the Canadian border and extends easterly to near Syracuse. Empire
will construct a lateral pipeline southward to connect with Millennium near
Corning, N.Y. Phase 2 would cross the Hudson River, linking to the New York City
metropolitan market.

22



ITEM 2. MANAGEMENT'S NARRATIVE ANALYSIS OF RESULTS OF OPERATIONS (continued)

COLUMBIA ENERGY GROUP AND SUBSIDIARIES

On September 19, 2002, the FERC issued its order granting final certificate
authority for the original Millennium project and specified that Millennium may
not begin construction until certain environmental and other conditions are met.
One such condition, impacting Phase 2 of the project, is compliance with the
Coastal Zone Management Act, which is administered by the State of New York's
Department of State (NYDOS). NYDOS has determined that the Hudson River crossing
plan is not consistent with the Act. Millennium's appeal of that decision to the
United States Department of Commerce was denied. Millennium filed an appeal of
the U.S. Department of Commerce ruling relating to the project's Hudson River
crossing plan in the U.S. Federal District Court on February 13, 2004. The
procedural schedule calls for all briefings to be completed by January 14, 2005.

During the second quarter of 2004, a Columbia affiliate purchased an additional
interest in the project. Columbia intends to find another sponsor by the end of
2004 to purchase this interest. The other sponsors remain the same and they are
Columbia Transmission, Westcoast Energy, Inc. (subsidiary of Duke Energy Corp.)
and MCN Energy Group, Inc. (subsidiary of DTE Energy Co.).

ITEM 3. QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK

Omitted pursuant to General Instruction H(2)(c).

ITEM 4. CONTROLS AND PROCEDURES

Evaluation of Disclosure Controls and Procedures

Columbia's president and chief executive officer and its principal financial
officer, after evaluating the effectiveness of Columbia's disclosure controls
and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)), have
concluded based on the evaluation required by paragraph (b) of Exchange Act
Rules 13a-15 and 15d-15 that, as of the end of the period covered by this
report, Columbia's disclosure controls and procedures were adequate and
effective to ensure that material information relating to Columbia and its
consolidated subsidiaries would be made known to them by others within those
entities.

Changes in Internal Controls

There was no change in Columbia's internal control over financial reporting
during the fiscal quarter covered by this report that has materially affected,
or is reasonably likely to materially affect, Columbia's internal control over
financial reporting.

23



PART II

ITEM 1. LEGAL PROCEEDINGS

COLUMBIA ENERGY GROUP AND SUBSIDIARIES

1. VIRGINIA NATURAL GAS, INC. V. COLUMBIA GAS TRANSMISSION CORP., FEDERAL
ENERGY REGULATORY COMMISSION (FERC)

On January 13, 2004, Virginia Natural Gas, Inc. (VNG) filed with FERC a
"Complaint Seeking Compliance with the Natural Gas Act and with Regulations and
Certificate Orders of the Federal Energy Regulatory Commission and Seeking
Remedies" in Docket No. RP04-139. VNG alleged various violations during the
Winter of 2002-2003 by Columbia Transmission of its firm service obligations to
VNG. VNG sought monetary damages and remedies (exceeding $37 million), and also
sought certain prospective remedies. On July 29, 2004, FERC issued an order in
which it refused to grant VNG any monetary damages and said such claims are best
determined by a court of law. FERC also agreed with Columbia Transmission, that
Columbia Transmission had not abandoned its obligation to provide service and
that it had not inappropriately continued interruptible service to the detriment
of firm service. However, FERC did find that Columbia Transmission had failed to
exercise sufficient due diligence in its modifications to or its operation of
vaporization equipment at its Chesapeake LNG facility and that Columbia
Transmission had failed to deliver gas to VNG at 250 psig as called for by the
agreement between VNG and Columbia Transmission. FERC declined VNG's request to
award damages in this case and, as noted above, stated that any claim for
damages could best be determined by a court of law.

2. STAND ENERGY CORPORATION, ET AL. V. COLUMBIA GAS TRANSMISSION CORPORATION,
ET AL KANAWHA COUNTY COURT, WEST VIRGINIA, ATLANTIGAS CORPORATION V. NISOURCE,
ET AL, U.S. DISTRICT COURT, NORTHERN DISTRICT OF MARYLAND AND TRIAD ENERGY
RESOURCES, ET AL. V. NISOURCE, ET AL

In June 2002, Atlantigas Corporation filed a complaint in the U.S. District
Court, District of Columbia. In March 2003, Triad Energy Resources filed a
similar complaint in the U.S. District Court, District of Columbia. On September
29, 2003, the Atlantigas complaint was dismissed for lack of personal
jurisdiction and Atlantigas filed a new complaint in the U.S. District Court of
Northern Maryland on October 27, 2003. Based on the Court's decision on personal
jurisdiction in Atlantigas, the plaintiffs in the Triad case dismissed that case
on October 31, 2003 from the District of Columbia and indicated that the case
would be refiled in another jurisdiction. On July 14, 2004, Stand Energy
Corporation filed a complaint in Kanawha County Court in West Virginia and on or
about July 22, Atlantigas filed a voluntary notice of dismissal without
prejudice in the case in the U.S. District Court of Northern Maryland, citing
its joinder as a plaintiff in the Stand Energy case. All of these complaints
contain allegations against various NiSource companies, including Columbia
Transmission and Columbia Gulf, and assert that those companies and certain
"select shippers" engaged in an "illegal gas scheme" that violated federal
anti-trust and state law. The "illegal gas scheme" complained of by the
plaintiffs relates to the Columbia Transmission and Columbia Gulf gas imbalance
transactions that were the subject of the FERC enforcement staff investigation
and subsequent settlement approved in October 2000. An answer in the Stand
Energy case is due on August 14, 2004.

3. UNITED STATES OF AMERICA EX REL. JACK J. GRYNBERG V. COLUMBIA GAS
TRANSMISSION CORP., ET AL., U.S. DISTRICT COURT, E.D. LOUISIANA

The plaintiff filed a complaint in 1997, under the False Claims Act, on behalf
of the United States of America, against approximately seventy pipelines,
including Columbia Gulf and Columbia Transmission. The plaintiff claimed that
the defendants had submitted false royalty reports to the government (or caused
others to do so) by mis-measuring the volume and heating content of natural gas
produced on Federal land and Indian lands. The Plaintiff's original complaint
was dismissed without prejudice for misjoinder of parties and for failing to
plead fraud with specificity. The plaintiff then filed over sixty-five new False
Claims Act complaints against over 330 defendants in numerous Federal courts.
One of those complaints was filed in the Federal District Court for the Eastern
District of Louisiana against Columbia and thirteen affiliated entities.

Plaintiff's second complaint, filed in 1997, repeats the mis-measurement claims
previously made and adds valuation claims alleging that the defendants have
undervalued natural gas for royalty purposes in various ways, including sales to
affiliated entities at artificially low prices. Most of the Grynberg cases were
transferred to Federal court in Wyoming in 1999.

24



ITEM 1. LEGAL PROCEEDINGS (continued)

COLUMBIA ENERGY GROUP AND SUBSIDIARIES

The defendants, including the Columbia defendants, have filed motions to dismiss
for lack of subject matter jurisdiction in this case.

4. TAWNEY, ET AL. V. COLUMBIA NATURAL RESOURCES, INC., ROANE COUNTY, WV
CIRCUIT COURT

The Plaintiffs, who are royalty owners, filed a lawsuit in early 2003 against
Columbia Natural Resources alleging that Columbia Natural Resources underpaid
royalties by improperly deducting post-production costs and not paying a fair
value for the gas produced from their leases. Plaintiffs seek the alleged
royalty underpayment and punitive damages claiming that Columbia Natural
Resources fraudulently concealed the deduction of post-production charges. In
February 2004, the court certified the case as a class action that includes any
person who, after January 1, 1980, received or is due royalties from Columbia
Natural Resources (and its predecessors or successors) on lands lying within the
boundary of the State of West Virginia. All individuals, corporations, agencies,
departments or instrumentalities of the United States of America are excepted
from the class. Although NiSource sold Columbia Natural Resources in 2003, it
remains obligated to manage this litigation and also remains at least partly
liable for any damages awarded to the plaintiffs. Columbia Natural Resources
appealed the decision certifying the class and the Supreme Court of West
Virginia denied the appeal. Trial is scheduled for July 5, 2005.

ITEM 2. CHANGES IN SECURITIES AND USE OF PROCEEDS

Omitted pursuant to General Instruction H(2)(b)

ITEM 3. DEFAULTS UPON SENIOR SECURITIES

Omitted pursuant to General Instruction H(2)(b)

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

Omitted pursuant to General Instruction H(2)(b)

ITEM 5. OTHER INFORMATION

None

ITEM 6. EXHIBITS AND REPORTS ON FORM 8-K

(a) Exhibits

(10.1) Receivables Sale Agreement, dated as of May 14, 2004,
between Columbia Gas Of Ohio, Inc., as Seller, and
Columbia Of Ohio Receivables Corporation, as Purchaser.

(10.2) Receivables Purchase Agreement, dated as of May 14,
2004, among Columbia Of Ohio Receivables Corporation, as
Seller, Beethoven Funding Corporation, as Purchaser,
Dresdner Bank Ag, New York Branch, as Agent, and
Columbia Gas Of Ohio, Inc., as Servicer.

(12) Statements of Ratio of Earnings to Fixed Charges.

(31.1) Certification of Michael W. O'Donnell, Chief Executive
Officer, pursuant to Section 302 of the Sarbanes-Oxley
Act of 2002.

(31.2) Certification of David J. Vajda Principal Financial
Officer, pursuant to Section 302 of the Sarbanes-Oxley
Act of 2002.

25



ITEM 6. EXHIBITS AND REPORTS ON FORM 8-K (continued)

COLUMBIA ENERGY GROUP AND SUBSIDIARIES

(32.1) Certification of Michael W. O'Donnell, Chief Executive Officer,
pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.

(32.2) Certification of David J. Vajda, Principal Financial Officer,
pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.

(b) Reports on Form 8-K

There were no reports on Form 8-K filed during the second quarter of 2004.

26



Pursuant to the requirements 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.

Columbia Energy Group
--------------------------------
(Registrant)

Date: August 6, 2004 By: /s/ Jeffrey W. Grossman
--------------------------------
Jeffrey W. Grossman
Vice President
(Principal Accounting Officer
and Duly Authorized Officer)

27