U.S. Silica Holdings is a prominent producer of high-quality silica products, including unground silica, ground silica, fine ground silica, calcined kaolin clay, and aplite. Established over a century ago, the company traces its origins to the discovery of the Oriskany sandstone deposit in West Virginia by Henry Harrison Hunter, who showcased silica sand at the 1893 Chicago World's Fair. Over the years, U.S. Silica has expanded its operations through acquisitions and the development of a diverse range of over 200 unique products. The company operates a comprehensive network of production plants and packaging facilities across the United States, facilitating reliable procurement of silica and other industrial minerals. A significant portion of its revenue is generated from its Oil and Gas Proppants segment, supporting hydraulic fracturing operations. U.S. Silica emphasizes collaboration with customers to innovate product applications while maintaining a commitment to health, safety, quality, and environmental integrity. In 2008, the company was acquired by Golden Gate Capital, a private equity firm based in San Francisco.
EP Minerals, LLC is a producer and supplier of industrial minerals, specializing in diatomaceous earth (DE), perlite, and calcium bentonite. Founded in 1945 and based in Reno, Nevada, the company serves a diverse array of industries, including food and beverage, biofuel, oil and gas, agriculture, and landscape, both in the United States and internationally. Its product offerings include filter aids, absorbents, functional additives, and aggregates. These materials are employed in applications such as water purification, arsenic remediation, filtration, agricultural enhancements, and sports turf management. EP Minerals also provides patented solutions for water treatment and operates through a global distribution network. The company is a subsidiary of U.S. Silica Holdings, Inc., having previously operated under the name Eagle Picher Filtration & Minerals Inc.
Mississippi Sand
Acquisition in 2017
Mississippi Sand, LLC is a manufacturer of high-quality natural sand proppants, primarily serving the oil and gas industry. Located in Festus, Missouri, the company boasts a significant reserve that complies with API standards. Mississippi Sand operates a sand mine and plant with an impressive production capacity of 1.2 million tonnes per year. The company focuses on enhancing logistics and operations, which includes five barge terminals and three rail terminals, to ensure efficient delivery of its products. By prioritizing quality control and customer service, Mississippi Sand has established itself as a leader in the industry, committed to innovation and excellence in all aspects of its business.
Sandbox Enterprises
Acquisition in 2016
Sandbox Enterprises is a provider of innovative logistics solutions and technology for the transportation of proppant used in hydraulic fracturing in the oil and gas industry. The privately-held company employees approximately 300 people at its six locations in the U.S. The company is active in all of the major shale plays including the Permian, the Eagle Ford, the Bakken, the DJ and the Marcellus basins. The company is headquartered in Houston, Texas.
NBR Sand
Acquisition in 2016
NBR Sand is a producer of silica sand, specifically focusing on fine-grade frac sand used in hydraulic fracturing operations. The company operates a sand mine and processing facility located in East Texas, which has the capacity to produce over two million tons of sand annually. NBR Sand specializes in 40/70 mesh and 100 mesh silica sand, catering primarily to customers involved in drilling and completing wells in nearby basins. The facility sells its products on a free on board (FOB) basis, emphasizing its commitment to supplying high-quality sand to meet the needs of the energy sector.
Cadre
Acquisition in 2014
Cadre Services is a major supplier of API/ISO-quality Premium Hickory® Sand to the oil and gas industry. Cadre produces four products: Cadre 16/30, Cadre 20/40, Cadre 30/50 and Cadre 40/70. With principal operations located in Voca, Texas, Cadre was recognized as the 2012 Outstanding Large Business in McCulloch County and was identified as one of the Houston Top 100 by the Houston Business Journal.
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