James E. Bertelsmeyer

Maxum Enterprises LLC operates as an energy logistics company. It provides fuel, lubricants and chemicals to the energy, marine, mining and industrial markets. The company was founded in 1946 and is headquartered in Fort Worth, TX.

ETP Legacy LP produces and sells propane and natural gas. It owns and operates a diversified portfolio of energy assets. The company was founded by Kelcy Warren in 1995 and is headquartered in Dallas, TX.

National Propane Gas Association engages in the retail marketing of propane gas and appliances. It produces and wholesales of propane equipment. The firm offers gas cylinders, tanks, and propane transporters. The company was founded in 1931 and is headquartered Nicholasville, KY.

Propane Education & Research Council provides research, safety, and consumer initiatives services. It promotes the safe, efficient use of odorized propane gas as a preferred energy resource through consumer and employee education and technology development and commercialization. The company was founded in 1999 and is headquartered in Washington, DC.

Heritage Operating, LP distributes propane through a nationwide retail distribution network. The company was founded in 1996 and was headquartered in Tulsa, OK.