William D. Waldrip

Flatrock Energy Advisors LLC (Flatrock Energy Advisors) is a private equity firm founded by William D. Waldrip, William Robert Lemmons and Dennis F. Jaggi in 2008. The firm is headquartered in San Antonio, Texas.

Rangeland Energy III LLC engages in developing, acquiring, and operating midstream infrastructure for crude oil, natural gas, liquids, and other petroleum products. The private company is based in Sugar Land, TX. The company was founded by Christopher W. Keene and he has been the CEO since incorporation.

Ironwood Midstream Energy Partners II LLC constructs crude and gas pipeline projects. The company was founded by Bill Waldrip and is headquartered in San Antonio, TX.

Crestwood Crude Logistics LLC develops, acquires, owns and operates infrastructure for crude oil, natural gas and liquids. The firm also offers rail, pipeline, truck transportation and storage infrastructure. The company was founded by Christopher W. Keene in 2009 and is headquartered in Sugar Land, TX.

Lewis Energy Group LP operates as an exploration and drilling company. It explores, drills, and produce natural gas The company was founded by Rodney R. Lewis in 1982 and is headquartered in San Antonio, TX.

Greenfield Midstream LLC engages in operation of an independent energy company. It focuses on the development of midstream assets across North America. The firm provides investment services for natural gas gathering, processing, treating & compression, crude oil gathering, transportation, water handling and product marketing. The company was founded in 2017 and is headquartered in Houston, TX.

US Infrastructure LP provided midstream industry services to oil and gas producers. The firm was engaged in the acquisition, development and operation of natural gas gathering and processing assets. It provided oil and gas producers with midstream infrastructure and services that connect wellhead to market. The company was founded on 14th October, 2008 and was headquartered in Austin, TX.