Exhibit 99.1

CARBO® Announces Fourth Quarter and Fiscal Year 2018 Results

Conference Call Scheduled for Today, 10:30 a.m. Central Time

HOUSTON, TX (January 31, 2019) – CARBO Ceramics Inc. (NYSE: CRR) today reported financial results for the fourth quarter and fiscal year 2018.

CEO Gary Kolstad commented, “Our transformation strategy continued to show solid progress during 2018.  Gross loss was reduced by $31 million year-on-year and Adjusted EBITDA improved $20 million year-on-year with a $22 million increase in revenue.  These improvements were the result of focusing on growing our technology products and services, as well as continued cost reductions.  In addition, excluding the sale of the Millen Plant, we maintained cash neutrality in the second half of 2018 during a period of lower oilfield activity.  Maintaining healthy cash balances is our highest priority.

Oilfield sector revenue for 2018 increased 14% year-on-year, and comprised approximately 78% of total consolidated revenue.

“Our oilfield technology related products revenue increased 15% year-on-year led by growth in CARBOAIR®, CARBONRT®, and the KRYPTOSPHERE® family of products.

“STRATAGEN® consulting revenue increased 38% year-on-year, and FRACPRO® fracture simulation software business revenue increased 22% year-on-year.  This revenue increase was primarily driven by new client growth and an increase in industry activity.  

“Base ceramic revenue for 2018 increased 3% year-on-year while frac sand related revenue increased 21% year-on-year.  The decline in the industry’s demand for frac sand, seen in the second half of 2018, impacted our sand sales volumes resulting in a decline relative to the first half of 2018.  

Industrial sector revenue for 2018 increased 24% year-on-year, and comprised approximately 7% of total consolidated revenue.

“We continue to execute on our transformation strategy by growing sales in the industrial market.  The grinding market was strong in 2018, and we continued to expand our product portfolio to open up new markets during the year.  For foundry, our ceramic media also found success through full sand-to-ceramic media conversions at multiple client plants.

CARBO Ceramics Inc.

Energy Center II, 575 N. Dairy Ashford, Suite 300, Houston, Texas 77079  |  +1 281 921 6400  |   carboceramics.com

Page 2

“Identifying different ways our manufacturing expertise and assets can be utilized continued to be a key objective in 2018, and one that drove high incremental margins for us year-over-year as we increased our contract manufacturing revenue.  In addition, we are excited about our partnership with PicOnyx, Inc., developer of M-Tone^TM, a new family of functional pigments for the plastics, paints, ink, coatings and adhesives markets.

Environmental sector revenue for 2018 increased 39% year-on-year, and comprised approximately 15% of total consolidated revenue.

“ASSETGUARD^TM revenue growth was driven by client gains and the expansion of product sales outside the oilfield.  Our exceptional year for our Environmental sector was led by a 69% increase in sales of GROUNDGUARD®, our impermeable liner technology that protects any industrial, agricultural or commercial site against leaks or spills of fluids.  Our product sales growth continues to drive profitability improvement in a competitive market,” Mr. Kolstad said.

Fourth Quarter 2018 Results

Cash and cash equivalents and restricted cash grew sequentially by approximately $24 million to $83 million.  Excluding proceeds from the sale of Millen, cash and cash equivalents and restricted cash grew sequentially by approximately $1 million to $60 million.

Revenues for the fourth quarter of $49.6 million decreased 18%, or $10.7 million, compared to revenue of $60.3 million in the same period of 2017.  The largest contributors to this decrease were the declines in sales of base ceramic and sand products.

Operating loss for the fourth quarter of 2018 increased to $18.9 million as compared to $17.3 million in the same period of 2017, primarily due to the loss on the sale of our Millen plant.  Approximately 55% of the operating loss for the fourth quarter of 2018 consisted of non-cash expenses.

Full Year Results

Cash and cash equivalents and restricted cash grew year-on-year by approximately $5 million to $83 million.

Revenues for the year of $210.7 million increased 12%, or $21.9 million, compared to revenue of $188.8 million in the same period of 2017, resulting from solid revenue growth in environmental, industrial, and oilfield technology products and services.  

Technology and Business Highlights

Page 3

Page 4

Outlook

CEO Gary Kolstad commented on the outlook for CARBO stating, “Our transformation strategy is working.  We are very pleased with the profitable growth in our Industrial and Environmental business sectors.  The growth of these two sectors should result in a balanced portfolio that is less susceptible to swings in oil and gas commodity prices.  We are also pleased with the oilfield technology products and services profitable growth, and expect to retain our leadership position in those products and services.  

“In the Oilfield sector, E&P operators’ focus on free cash flow, coupled with recent oil price volatility, creates a less than certain environment with regard to drilling and completion spend in 2019.  Current expectations by some industry analysts are predicting 2019 drilling and completion spend to be down high single digits on a percentage basis compared to 2018.  However, we are seeing positive signs internationally that should bode well for our oilfield sector products.  

“The Industrial sectors provide a very large, multi-year growth opportunity for CARBO.  In the mining sector, more companies have started increasing their operating and capital spend, which supports our CARBOGRIND product growth.  In the foundry industry, the value our products bring to improve our client’s end-product quality, along with the need to comply with OSHA Permissible Exposure Limits (PEL) silicosis regulations, supports our CARBOACCUCAST product growth.  In both these sectors, and in numerous other Industrial sectors, our ceramic technology products are seeing market share growth.

“The Environmental sector continues to see growth, as companies in various industry sectors continue to be more environmentally conscious.  This provides us with a multi-year growth opportunity, in which we will put a strong focus on growing at high rates in Industrial sectors.

“Based on the above and our expectations for profitable growth in the industrial and environmental sectors, and oilfield technology products, we anticipate our 2019 revenue to be similar to 2018 and lead to another year of significant EBITDA fall-through.

Oilfield Sector:

“We expect continued strong growth for our international ceramic technology sales in 2019.  Demand for our technology continues to increase in South America, along with Europe, Africa and the Middle East.  In North America, the opportunity set for our ceramic technology sales remains strong, with KRYPTOSPHERE HD projects currently weighted more to the second half of the year.

“On the fracture technology design and analysis front, demand for our STRATAGEN consultants, and our FRACPRO software, is expected to remain strong as our clients utilize these offerings to optimize their completion designs and return economics.

“At this time, we anticipate base ceramic sales and frac sand sales to decrease single digits on a percentage basis, similar to the lower industry expectations for drilling and completion spend.  For base ceramics, we continue to drive business model changes towards production on demand, along with upfront cash commitments.  For frac sand, a high percentage of our sand capacity is under contract, from which we are also benefiting from the use of our rail cars and distribution center.

Page 5

Industrial Sector:

“We expect strong double digit growth in industrial revenues in 2019 through continued growth of our ceramic media in both the grinding and foundry markets.   Our industrial ceramic client list is expanding globally, and should lead to improved market share for our technology products.  We are also developing new markets while expanding the existing markets we sell into through a broader range of technology product offerings.

“Our PicOnyx Inc. investment is off to a great start.  We recently initiated the first phase of the manufacturing process.  M-Tone pigment should be in the market during the first half of 2019, and we expect production to ramp over the course of the year.

“CARBO has world class manufacturing expertise.  This manufacturing expertise is used to develop solutions for our clients.  There are a number of contract manufacturing opportunities in the queue.  We expect to grow both in revenue, and by expanding the types of products we produce.  Their benefit has the potential to be significant as these projects take idled assets and turn them from cash consumers to cash producers.

Environmental Sector:

“Growth in product sales and expanding our reach outside the oilfield should result in revenue growth for ASSETGUARD in 2019.  We are increasing resources specifically dedicated to growing industrial and other end market sales.  ASSETGUARD continues to lead the industry in developing technology products for our clients to address their ongoing challenges.

“Progress on our transformation strategy will continue in 2019 as we continue to focus on diversifying our revenue streams, maximizing profitability across the businesses, and maintaining healthy cash levels.  We expect to be cash neutral in 2019, excluding planned debt repayments,” Mr. Kolstad concluded.

Conference Call

As previously announced, a conference call to discuss CARBO’s fourth quarter and full year 2018 results is scheduled for today at 10:30 a.m. Central Time (11:30 a.m. Eastern).  Due to historical high call volume, CARBO is offering participants the opportunity to register in advance for the conference by accessing the following website:

http://dpregister.com/10127480

Registered participants will immediately receive an email with a calendar reminder and a dial-in number and PIN that will allow them immediate access to the call.

Participants who do not wish to pre-register for the call may dial in using (877) 232-2832 (for U.S. callers), (855) 669-9657 (for Canadian callers) or (412) 542-4138 (for international callers) and ask for the “CARBO Ceramics” call.  The conference call also can be accessed through CARBO’s website, www.carboceramics.com.

A telephonic replay of the earnings conference call will be available through February 7, 2019 at 9:00 a.m. Eastern Time.  To access the replay, please dial (877)-344-7529 (for U.S. callers), (855) 669-9658 (for Canadian callers) or (412) 317-0088 (for international callers).  Please reference conference number 10127480.  Interested parties may also access the archived webcast of the earnings teleconference through CARBO’s website approximately two hours after the end of the call.

About CARBO

CARBO (NYSE: CRR) is a global technology company that provides products and services to the oil and gas and industrial markets to enhance value for its clients.  The Company has two reportable operating segments: 1) oilfield and industrial technologies and services and 2) environmental technologies and services.

Page 6

CARBO Oilfield Technologies – is a leading provider of market-leading technologies to create engineered production enhancements solutions that help E&P operators to design, build and optimize the frac – increasing well production and estimated ultimate recovery, and lower finding and development cost per barrel of oil equivalent.

CARBO Industrial Technologies - is a leading provider of high-performance ceramic media and industrial technologies engineered to increase process efficiency, improve end-product quality and reduce operating cost.  CARBO has world class manufacturing expertise.  We bring new products to market faster to meet customer demands.

CARBO Environmental Technologies – is a leading provider of spill prevention and containment solutions that provide the highest level of protection for clients’ assets and the environment in oil and gas and industrial applications. Our range of innovative products feature a proprietary polyurea coating technology that creates a seamless, impermeable, maintenance-free layer of protection.

For more information, please visit www.carboceramics.com.

Page 7

Forward-Looking Statements

The statements in this news release that are not historical statements, including statements regarding our future financial and operating performance and liquidity and capital resources, are forward-looking statements within the meaning of the U.S. Private Securities Litigation Reform Act of 1995.  Forward-looking statements describe future expectations, plans, results or strategies and can often be identified by the use of terminology such as “may”, “will”, “estimate”, “intend”, “continue”, “believe”, “expect”, “anticipate”, “should”, “could”, “potential”, “opportunity”, or other similar terminology.  All forward-looking statements are based on management’s current expectations and estimates, which involve risks and uncertainties that could cause actual results to differ materially from those expressed in forward-looking statements.  Among these factors are changes in overall economic conditions, changes in the demand for, or price of, oil and natural gas, changes in the cost of raw materials and natural gas used in manufacturing our products, risks related to our ability to access needed cash and capital, our ability to meet our current and future debt service obligations, including our ability to maintain compliance with our debt covenants, our ability to manage distribution costs effectively, changes in demand and prices charged for our products, risks of increased competition, technological, manufacturing and product development risks, our dependence on and loss of key customers and end users, changes in foreign and domestic government regulations, including environmental restrictions on operations and regulation of hydraulic fracturing, changes in foreign and domestic political and legislative risks, risks of war and international and domestic terrorism, risks associated with foreign operations and foreign currency exchange rates and controls, weather-related risks, risks associated with the successful implementation of our transformation strategy, and other risks and uncertainties.  Additional factors that could affect our future results or events are described from time to time in our reports filed with the Securities and Exchange Commission (the “SEC”).  Please see the discussion set forth under the caption “Risk Factors” in our most recent annual report on Form 10-K, and similar disclosures in subsequently filed reports with the SEC.  We assume no obligation to update forward-looking statements, except as required by law.

Note on Non-GAAP Financial Measures

This press release includes unaudited non-GAAP financial measures, including EBITDA and Adjusted EBITDA.  We present non-GAAP measures when our management believes that the additional information provides useful information about our operating performance.  Non-GAAP financial measures do not have any standardized meaning and are therefore unlikely to be comparable to similar measures presented by other companies.  The presentation of non-GAAP financial measures is not intended to be a substitute for, and should not be considered in isolation from, the financial measures reported in accordance with GAAP.  See the table entitled "Reconciliation of Reported Net Loss to EBITDA and Adjusted EBITDA" below and the accompanying text for an explanation of the non-GAAP financial measures and a reconciliation of the non-GAAP financial measures to the comparable GAAP measures.

-tables follow –

Page 8

Page 9

Adjusted EBITDA is used by management to evaluate and assess our operational results, and we believe that Adjusted EBITDA allows investors to evaluate and assess our operational results.

Page 10

Balance Sheet Information

FOR MORE INFORMATION:

Investors:

Mark Thomas, Director, Investor Relations

+1 281-921-6400

Media:

Jamie Efurd, Marketing Director

+1 281-921-6400