Oliver Richard

Part of Enron Dissolution Corp., Enron North America Corp gathers, transports, and markets natural gas. The company is based in Houston, TX.

Columbia Energy Group explores, produces, stores and distributes natural gas. The company engages in the transmission and distribution of natural gas in the United States. The company was founded in 1926 and is located in Merrillville, IN.

MainLine Management LLC provides transportation, terminal and storage services. It engages in the transportation, terminal, and storage of refined petroleum products for integrated oil companies, refined marketing companies, and end users of petroleum. The company is headquartered in Emmaus, PA.

Buckeye GP Holdings LP provides petroleum products. The company was founded in 1886 and is headquartered in Austin, TX.

Buckeye Partners LP owns and operates a network of assets providing midstream logistic solutions, which consists of the transportation, storage, processing and marketing of liquid petroleum products. It operates its business through the following segments: Domestic Pipelines and Terminals, Global Marine Terminals, and Merchant Services. The Domestic Pipelines and Terminals segment transports liquid petroleum products from refineries, connecting pipelines, vessels, and bulk and marine terminals. The Global Marine Terminals segment provides marine accessible bulk storage and blending services, and rail and truck rack loading or unloading along with petroleum processing services. The Merchant Services segment is a wholesale distributor of refined petroleum products. The company was founded in March 1886 and is headquartered in Houston, TX.

CleanFUEL USA, Inc. manufactures alternative fuel equipment for propane autogas. It offers vehicles, stations, and dispensers that comply with environmental regulations. The company was founded by Curtis Donaldson and Peter Martin Peterson in 1993 and is headquartered in Georgetown, TX.