Michael F Henson

Natural Gas Partners LLC (NGP) is a private equity firm, a subsidiary of NGP Energy Capital Management, LLC founded in 1988 by David Russell Albin and Kenneth Alfredo Hersh. The firm is headquartered in Dallas, Texas.

Tudor, Pickering, Holt & Co. Securities LLC (TPH) is a broker/dealer headquartered in Houston, Texas. The firm was founded in 2007 by Robert Tudor III. They are a subsidiary of Perella Weinberg Partners Group LP, which is ultimately owned by Perella Weinberg Partners (NASDAQ: PWP). TPH provides a full array of trading and execution services for their institutional and corporate clients in the energy sector. They focus on the upstream, midstream and oilfield service sectors.

Part of PHI Group, Inc., Holt & Collins provides retail brokerage and custodial services to investors. The company is based in San Francisco, CA. Holt & Collins was acquired by PHI Group, Inc. on October 26, 2000.

Lime Rock Management LP (Lime Rock Management) is Private Equity firm founded in 1998 by Jonathan Clark Farber and John T. Reynolds. The firm is headquartered in Westport with additional office in London.