A. Teague

The Dow Chemical Co. engages in the manufacture and distribution of chemicals, plastics, industrial and agricultural products. It serves agriculture, automotive, building and construction, consumer, electronic materials, infrastructure, packaging, product finder and product safety industries. The company was founded by Herbert Henry Dow in 1897 and is headquartered in Midland, MI.

Enterprise GP Holdings LP explores and produces natural gas and provides other energy related services. It offers offshore pipelines and services, onshore natural gas pipelines and services, natural gas liquid pipelines and services and petrochemical services. Enterprise GP Holdings is headquartered in Houston, TX.

Duncan Energy Partners LP acquires, owns, and operates a diversified portfolio of midstream energy assets. It engages in the businesses of natural gas liquids, transportation, petrochemical and refined products, and fractionation and marketing. The company was founded by Dan L. Duncan in September 2006 and is headquartered in Dallas, TX.

Enterprise Products Operating LLC engages in the provision of processing and transportation services to producers and consumers of natural gas liquids. It operates pipelines, fractionation, processing, and octane enhancement. The company was founded in 1998 and is headquartered in Houston, TX.

Part of Enterprise Products Partners LP, Tejas Natural Gas Liquids LLC is an American company that processes, stores, and transports natural gas liquids. Tejas Natural Gas Liquids was acquired by Enterprise Products Partners LP from Tejas Energy Co. on September 20, 1999 for $166 million.

Enterprise Products GP LLC is a provider of oil-refining services. The company provides energy services to producers and consumers of natural gas, natural gas liquids, crude oil, refined products and petrochemicals. The company was incorporated in 1998 and is based in Houston, Texas.