Robert Firth

Part of Shell Plc, Tejas Gas Corp. is a company that processes and markets natural gas. The company is based in Houston, TX. Tejas Gas was acquired by Shell Oil Co. on January 31, 1998 for $1,265.06 million.

Copano Energy/Rocky Mountains LLC provides services to natural gas producers, including natural gas gathering, intrastate transmission, processing, conditioning and treating. The company is headquartered in Englewood, CO.

Part of Kinder Morgan, Inc., Copano Energy/Mid-Continent LLC processes and transmits natural gas. The company is based in New Castle, DE.

EMG Fund IV PAA Holdings LLC operates as an investment fund. The company is headquartered in Dallas, TX.

Emg Ae Woodford Holdings LLC specializes in banking and financial services. The company is headquartered in Houston, TX.

American Heart Association, Inc. operates a voluntary health organization funded by private contributions. The organization offers services for coronary heart diseases and strokes, high blood cholesterol & physical inactivity, obesity, and diabetes. The company was founded in 1924 and is headquartered in Dallas, TX.

White Star Petroleum LLC operates as an independent oil and natural gas company. It focuses on the acquisition, development, operation and production of unconventional oil and natural gas properties. The company was founded by Aubrey Kerr McClendon in 2013 and is headquartered in Oklahoma City, OK.

Pres Holdings LLC is an investment holding American company. The private company is based in New York.

Lodestar Energy Group, LLC is an energy company that specializes in developing and operating supply chain infrastructure for the hydrocarbon midstream and downstream environments. The private company is based in Houston, TX. The CEO of the company is Bradley N. Howell.

Ascent Resources Equity Holdings LLC engages in oil and gas production. The company was founded in 2015 and is headquartered in Oklahoma City, OK.

Ferus Natural Gas Fuels GP LLC explores natural gas. The private company is based in Dallas, TX. The CEO of the company is Richard Brown.

Ferus GP LLC manufactures basic chemicals. The private company is based in Denver, CO.

Coronado Group LLC engages in the provision of coal mining services. The company was founded on April 1, 2015 and is headquartered in Coppell, TX.

NGL Crude Logistics LLC provides physical distribution, merchandising and trading services. The company was founded on April 24, 2002 and is headquartered in Houston, TX.

Lighthouse Oil & Gas LP engages in the exploration and production of crude oil and natural gas. It focuses on exploiting oil-bearing reservoirs in the Anadarko Basin of western Oklahoma with multistage, fracture stimulated, horizontal wells. The company was founded in September 2013 and is headquartered in Oklahoma City, OK.

Tallgrass Energy Holdings LLC engages in business services industry. The company is headquartered in Overland Park, KS.

Part of Tallgrass Energy LP, Tallgrass Management LLC operates as a midstream energy firm. The company is based in Lakewood, CO. The company was founded in 2012. The CEO is William R. Moler.

Ascent Resources LLC engages in oil and gas exploration and production services. It explores, acquires, develops and produces oil and natural gas in prominent American shale plays. The company was founded in 2014 and is headquartered in Oklahoma, OK.

Part of Duke Energy Corp., Grand Valley Gas Co. is a natural gas distribution company. The company is based in Salt Lake City, UT. Grand Valley Gas was acquired by Associated Natural Gas Corp., part of Duke Energy Corp. from December 16, 1994 on July 01, 1994 for $50.70 million.

Part of Duke Energy Corp., Associated Natural Gas Corp. is a company that specializes in energy resource development and is a holding company. The company is based in Houston, TX. Associated Natural Gas was acquired by PanEnergy Corp. on December 16, 1994 for $591 million.

Part of CMS Energy Corp., Heritage Gas Services LLC is a company that gathers, processes, and markets natural gas and natural gas liquids. The company is based in Enid, OK. Heritage Gas Services was acquired by CMS Energy Corp. on October 26, 1998. The company was founded by Dave Presley.

Frontier Energy Services LLC operates a midstream energy firm. Its services include gathering, compression, processing, and treating facilities, and the marketing of natural gas and natural gas liquids. The company was founded by Dave Presley in 2002 and is headquartered in Tulsa, OK.

The University of Texas M.D. Anderson Cancer Center provides cancer patient care, research, and prevention for cancer. The firm also provides education for undergraduate and graduate students, trainees, professionals, employees and the publics. The company was founded in 1941 and is headquartered in Houston, TX.

Part of EMG Fund II Management LP, EMG PRES Equity LP acts as a private equity fund. The company is based in Dallas, TX. The CEO of the company is John T. Raymond.

Flat River Minerals LLC engages in oil and gas related business activities. The company is headquartered in Broomfield, CO.

Catahoula Resources LLC engages in extraction of oil and gas. The company is headquartered in Houston, TX.

EMG Fund IV Sable Holdings LLC provides pooled investment services. The company is headquartered in Dallas, TX.

EMG Fund V Spur Holdings LLC provides pooled investment fund services. The company was founded in 2019 and is headquartered in Dallas, TX.

EMG Fund IV Spur Holdings LLC operates as an investment fund. The company is headquartered in Dallas, TX.

NGL Water Pipelines LLC engages in the operation of propane and other natural gas businesses. The company is headquartered in Tulsa, OK.

Sable Permian Resources LLC engages in oil exploration and production. The company was founded in April 2014 and is headquartered in Oklahoma City, OK.

EMG Utica LLC operates as holding company. The company is headquartered in Dallas, TX.

Medallion Midstream LLC provides oil and gas producers with a full array of midstream services. Its core services include engineering, permits, procurement, construction, interconnects, gathering, treating, dehydration, scheduling, nominating, marketing and accounting. The company was founded by Randy N. Lentz and is headquartered in Irving, TX.

MarkWest Utica EMG LLC owns and operates a natural gas liquids pipeline and natural gas gathering systems. The company is headquartered in Denver, CO.

Ferus, Inc. is a Canadian company that offers customized supply-chain solutions for liquid CO2, liquid N2, and sand. The private company also provides logistical solutions for 24/7 supply. The company started as a cryogenics well site solutions provider and has expanded to offer a range of completions products, including CO2, N2, and frac sand. The company's team provides customized technical services to maximize Net Present Value (NPV) by optimizing fracturing and fluid designs. N2 has been used in hydraulic fracturing operations for over 50 years, and Ferus delivers energized fluids and sand with their integrated approach, reliable supply chain, and technical expertise to fully optimize production.

Iron Ore Holdings LP operates as a mining company. The company is headquartered in Delaware City, DE.

Cities Service Co. explores for and produces oil and gas. The company is based in Tulsa, OK. Cities Service was acquired by Occidental Petroleum Corp. on December 31, 1982 for $4,115.60 million.