Phillip D. Kramer

Plains Resources, Inc. engages in acquisition and exploitation of mature, underdeveloped oil properties, preferably an entire field in which a major integrated or large independent producer has controlling interest, simplifying the acquisition process. The company is headquartered in Houston, TX.

Plains All American GP LLC transports, markets, and stores crude oil, refined products and liquefied petroleum gas, and other natural gas related petroleum products. It also develops and operates natural gas storage facilities. The company was founded on June 28, 2001 and is headquartered in Houston, TX.

Crusader Energy Group, Inc. explores for oil and natural gas. The company was founded on July 3, 2008 and is headquartered in Oklahoma City, OK.

Vulcan Energy Corp. engages in the provision of upstream and midstream oil and gas services. It operates crude oil and natural gas wells. The company was founded in 1976 and is headquartered in Dallas, TX.

Petrologistics GP LLC manufactures chemical products. The private company is based in Houston, TX.

PetroLogistics LP engages in the production and sale of propylene and related by-products. It owns and operates the propane dehydrogenation facility that processes propane into propylene. The company was founded on June 9, 2011 and is headquartered in Dallas, TX.

PetroLogistics LLC provides oil distribution and storage services. It provides open access ethylene transportation services to substantially all of the producers and consumers of ethylene in Louisiana. The company is also a provider of underground storage for natural gas with connections to multiple natural gas pipelines. PetroLogistics is headquartered in Houston, Texas.

Part of Plains GP Holdings LP, PAA GP LLC provides investment services. The private company is based in Houston, TX. Willie C. W. Chiang has been the CEO of the company since 2018.