Lowell A. Barto

Apache Corp. operates as an energy company, which engages in the exploration, development, and production of natural gas, crude oil, and natural gas liquids. The company was founded by Truman Anderson, Raymond Plank, and Charles Arnao on December 6, 1954 and is headquartered in Houston, TX.

LE GP LLC provides natural gas pipeline transportation and transmission services. The private company is based in Dallas, TX. The CEOs of the company are Marshall S. McCrea, Thomas E. Long.

EPCO Holdings, Inc. engages in the provision of financing and business administration services. The company 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.

Engineered Products Co. manufactures filter monitoring devices. It offers gauges, indicators, switches, and sensors. The products and services to a variety of industries such as automotive, truck, construction, agriculture, compressors, blowers, hydraulics, lawn and garden, irrigation, and other industries. The company was founded by Joseph N. Nelson in 1977 and is headquartered in Waterloo, IA.

Texas Heart Institute provides an avenue for exchange of ideas relating to the clinical and research activities. It provide an avenue for exchange of ideas relating to the clinical and research activities among the present and former Cardiology fellows, trainees, and teaching staff of the Texas Heart Institute. The company was founded by Denton A. Cooley in 1989 and is headquartered in Houston, TX.

Oklahoma Hall of Fame, Inc. engages in providing education services. The company was founded by Anna B. Korn in1927 and is headquartered in Oklahoma City, OK.

The Oklahoma Hospital Association provides health services.

Part of Dan Duncan LLC, Enterprise Products Holdings LLC is a company that functions as an investment holding company. The company is based in Houston, TX. The CEOs of the company are A. James Teague, W. Randall Fowler.

Tecumseh Health Attorney-in-Fact, Inc. provides insurance services. The private company is based in Burlington, VT.