U.S. Silica's SandBox Unit Awarded Last-Mile Logistics Agreement with Chesapeake Energy

KATY, Texas, Jan. 8, 2019 /PRNewswire/ -- U.S. Silica Holdings, Inc. (NYSE: SLCA) announced today that SandBox Logistics™, its industry leading last-mile containerized solution, has been awarded a full-service agreement for multiple crews with Chesapeake Energy, starting this month. SandBox will provide equipment, trucking, wellsite labor and 5000+ ton mobile transload capabilities for Chesapeake's operations in South Texas.  Specific terms of the agreement were not disclosed.

Commenting on the transaction, SandBox President Daniel Miers said, "We're excited about this strategic partnership with Chesapeake. We know that the Eagle Ford is Chesapeake's largest and most critical region, so implementing SandBox's state-of-the-art, full-service model for their crews makes perfect sense. We look forward to working with Chesapeake in 2019 and beyond to make their proppant logistics operations cleaner, safer and more efficient."

SandBox ended 2018 with approximately 90 crews deployed and expects to have a significant number of new crew starts during 2019.

Forward-looking Statements

Certain statements in this press release are "forward-looking statements" made pursuant to the safe harbor provisions of the Private Securities Litigation Reform Act of 1995 and speak only as of this date. Forward-looking statements made include any statement that does not directly relate to any historical or current fact and may include, but are not limited to, statements regarding U.S. Silica's growth opportunities, strategy, future financial results, forecasts, projections, plans and capital expenditures, and the commercial silica industry. Forward-looking statements are based on our current expectations and assumptions, which may not prove to be accurate. These statements are not guarantees and are subject to risks, uncertainties and changes in circumstances that are difficult to predict. Many factors could cause actual results to differ materially and adversely from these forward-looking statements. Among these factors are: (1) fluctuations in demand for commercial silica; (2) the cyclical nature of our customers' businesses; (3) operating risks that are beyond our control; (4) federal, state and local legislative and regulatory initiatives relating to hydraulic fracturing; (5) our ability to integrate the acquired business; (6) loss of, or reduction in, business from our largest customers; (7) increasing costs or a lack of dependability or availability of transportation services or infrastructure; (8) our substantial indebtedness and pension obligations; (9) our ability to attract and retain key personnel; (10) silica-related health issues and corresponding litigation; (11) seasonal and severe weather conditions; and (12) extensive and evolving environmental, mining, health and safety, licensing, reclamation and other regulation (and changes in their enforcement or interpretation). Additional information concerning these and other factors can be found in U.S. Silica's filings with the Securities and Exchange Commission. We undertake no obligation to publicly update or revise any forward-looking statement as a result of new information, future events or otherwise, except as otherwise required by law.

About U.S. Silica

U.S. Silica Holdings, Inc. is a performance materials company and is a member of the Russell 2000. The Company is a leading producer of commercial silica used in the oil and gas industry, and in a wide range of industrial applications. Over its 119-year history, U.S. Silica has developed core competencies in mining, processing, logistics and materials science that enable it to produce and cost-effectively deliver over 1,500 diversified products to customers across our end markets. U.S. Silica's wholly-owned subsidiaries include EP Minerals and SandBox Logistics™. EP Minerals is an industry leader in the production of products derived from diatomaceous earth, perlite, engineered clays, and non-activated clays. SandBox Logistics™ is a state-of-the-art leader in proppant storage, handling and well-site delivery, dedicated to making proppant logistics cleaner, safer and more efficient. The Company currently operates over 25 mines and production facilities. The Company is headquartered in Katy, Texas and has offices in Frederick, Maryland and Chicago, Illinois.

U.S. Silica Holdings, Inc.

Michael Lawson
Vice President of Investor Relations and Corporate Communications
(301) 682-0304
lawsonm@ussilica.com

Nick Shaver
Investor Relations Manager
281-394-9630
shavern@ussilica.com   

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SOURCE U.S. Silica Holdings, Inc.