Stephen J. Hadden

Berry Petroleum Co. LLC engages in the acquisition, exploration, development, and production of domestic oil and natural gas reserves. The company is headquartered in Bakersfield, CA.

LinnCo. LLC develops gas and oil properties. The Company was founded by Michael C. Linn on April 30, 2012 and is headquartered in Houston, TX.

Linn Energy, LLC engages in development, exploitation and acquisition of natural gas and oil. It seeks to be the operator of its properties so that it can develop drilling programs and projects. The company was founded by Michael C. Linn on March 14, 2003 and is headquartered in Houston, TX.

Texaco, Inc. explores and produces oil and natural gas. It engages in the worldwide exploration, production and marketing of crude oil, natural gas, and petroleum products. The company was founded in 1902 and is headquartered in San Ramon, CA.

Bison Merger Sub I LLC engages in the provision and supply of proppants and sand products. It operates through the Proppant Solutions; and Industrial & Recreational Products (I&R) segments. The Proppant Solutions predominantly provides sand-based proppants for use in hydraulic fracturing operations through the U.S. and Canada, Argentina, Mexico, China, and northern Europe. The I&R segment provides raw, coated, and custom blended sands to foundry, buildings products, glass, turf and landscape, and filtration industry in North America. The company was founded in 1986 and is headquartered in Chesterland, OH.

Fairmount Santrol, Inc. engages in the production of sand and sand-based products used by oil and gas exploration. The firm also provides foundry, building products, water filtration, and oil and gas solutions. The company was founded by William E. Conway in 1978 and is headquartered in Chesterland, OH.

Covia Holdings LLC. engages in the provision of diversified mineral-based and material solutions. It offers custom toll blending, micronization, bagging and packaging, and logistics. The company was founded in 1970 and is headquartered in Independence, OH.

Ulterra Drilling Technologies LP designs, manufactures, and supplies polycrystalline diamond compact drill bits to the oil and gas industry. Its products include SplitBlade, CounterForce, FastBack, XP, AirRaid™, Heavy Oil Gauge, OneShot, Omega™, and TorkBuster. The company was founded in 1927 and is headquartered in Fort Worth, TX.