Greg Armstrong

PAA Natural Gas Storage LP provides natural gas storage services. The company owns and operates three natural gas storage facilities located in Louisiana, Mississippi and Michigan. It provides natural gas storage services to a broad mix of customers, including local gas distribution companies, or LDCs, electric utilities, pipelines, direct industrial users, electric power generators, marketers, producers, LNG importers and affiliates of such entities. The company was founded on January 15, 2010 and is headquartered in Houston, TX.

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.

Part of Plains All American Pipeline LP, PNGS GP LLC operates, develops and manages natural gas storage facilities. The private company is based in Houston, TX. The CEO of the company is Willie C. W. Chiang.

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.

Memorial Hermann Healthcare System is a not-for-profit organization that provces healthcare services. It specializes in cancer, children's health, digestive health, emergency services, heart and vascular care, neurosurgery, orthopedics, rehab and physical therapy, and sleep medicine. The firm also offer imaging and diagnostic services. The company was founded 1907 and is located in Houston, TX.

Part of Plains All American Pipeline LP, PAA/Vulcan Gas Storage LLC is an acquisition vehicle.

The National Petroleum Council operates as a council for national petroleum. The private company is based in Washington.

The Independent Petroleum Association of America manufactures oil and natural gas. The non-profit company is based in Washington. Barry Russell has been the CEO of the American company since 1980.

The Texas Business Hall of Fame Foundation engages in recognizing the accomplishments and contributions of Texas business leaders, to perpetuate and inspire the values of entrepreneurial spirit. The company was founded in 1982 and is headquartered in Houston, TX.

The Council on Alcohol & Drugs Houston provides drug and alcohol addiction treatment services. The private company is based in Houston, TX and has subsidiaries in United States.

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.

Memorial Hermann Health System operates as a non-profit organization that provides healthcare services. It specializes in back pain and spine care, cancer, children's health, digestive health, emergency services, heart and vascular care, neurosurgery, neurology, stroke, orthopedics, sports medicine, rehabilitation and physical therapy, sleep medicine, transplant center, weight loss, and women?s health and maternity. Its services include alcohol and drug rehabilitation, diabetes education, home care, hospice, and medical equipment. The organization was founded 1907 and is headquartered in Houston, TX.

PAA Natural Gas Storage LLC develops and operates natural gas storage facilities. It has offices in Michigan and South Louisiana. PAA Natural Gas Storage operates as a subsidiary of PAA/Vulcan Gas Storage LLC. The company was founded in 2005 and is headquartered in Houston, TX

Part of NOV, Inc., National Oilwell Varco Norway AS is a Norwegian company that manufactures and distributes oil and gas field machinery and equipment. The private company is based in Kristiansand, Norway. The CEO of the company is Clay C. Williams.

PAA GP Holdings LLC engages in the provision of transportation, storage, and marketing of crude oil and refined products. The company is headquartered in Houston, TX.