S. Tyler Crabtree

Denham Capital Management LP (Denham Capital) is a private equity firm founded in 2004 by Stuart Denham Porter, Riaz Qamar Siddiqi and Carl John Tricoli. The firm is headquartered in Boston, Massachusetts.

El Paso Interim Corp. provides natural gas and related energy products in a safe, efficient and dependable manner. The company owns North America's interstate natural gas pipeline systems, which provides a stable base of earnings and cash flow and has a backlog of committed expansion projects. The company operates through three segments: Pipelines, Exploration and Production & Marketing. The Pipelines segment provides natural gas transmission, storage, and related services, primarily in the USA primarily through eight wholly or majority owned interstate pipeline systems and equity interests in two transmission systems. The Exploration and Production segment is engaged in the exploration for and the acquisition, development and production of oil, natural gas and NGL, in the US, Brazil and Egypt. The Marketing segment markets on behalf of its Exploration and Production segment and manages the price risks associated with its oil and natural gas production as well as manages remaining legacy trading portfolio. The company was founded by Paul Kayser in 1928 and is headquartered in Houston, TX.

Randall & Dewey is a M&A advisor in the global oil and gas industries. It provides oil and gas companies with the knowledge base for generating maximum value from petroleum assets. The company was founded in 1989 and is headquartered in Houston, TX.

Ursa Resources Group LLC engages in the exploration, acquisition, development and production of oil resources. It focuses on the development of the Bakken Shale in the Williston Basin of North Dakota and Montana. The company was founded by Matthew B. Steele on February 19, 2010 and is headquartered in Austin, TX.

Ursa Resources Group II LLC engages in the exploration and production of oil and natural gas properties. It develops oil rich unconventional plays as well as the acquisition of conventional oil and gas producing properties. The company was founded by Stephen E. Skinner in 2011 and is headquartered in Denver, CO.

MS Directional LLC operates as a directional drilling service company. It provides down-hole surveying, measurement while drilling, down-hole motors, horizontal drilling, and steering tool services. The company was founded in 1980 and is headquartered in Conroe, TX.

Part of U.S. Silica Holdings, Inc., Cadre Services, Inc. is a company that provides oilfield, pipeline, pump, and fabrication services. The company is based in Houston, TX. Cadre Services was acquired by U.S. Silica Holdings, Inc. from Cadre Material Products LLC on July 31, 2014 for $98.30 million.

Greene's Energy Group LLC provides integrated testing, rentals and specialty services to the oil and gas industry. It specializes in abandonment and decommissioning, offshore pipeline services, water treatment and filtration, wellhead and valve sales and services, nitrogen services, consulting services, and specialty pumping services and rentals. The company was founded in 1953 and is headquartered in Houston, TX.