John B. Brock

St. Luke's Episcopal Hospital provides medical and healthcare services. Its services include home health care, outpatient, surgical, cancer care, pulmonary care, rehabilitation therapy, and other health care services. The company was founded in 1954 and is headquartered in Houston, TX

Ocean Energy, Inc. explores and produces crude oil and natural gas. Its operations are focused in the shelf and deepwater areas of the Gulf of Mexico, the Rocky Mountains, Permian Basin, Anadarko, East Texas, North Louisiana and Gulf Coast regions. The company also conducts operations in Egypt, the Russian Republic of Tatarstan, Brazil, and Indonesia. Ocean Energy is located in Houston, TX.

Amegy Bank NA offers banking products and services. It specializes in small business banking; treasury management and investment services for companies, small businesses, private financial management and trust services for families and individuals. The firm also offers retail and mortgage banking services, payables and receivables solutions, and risk and wealth management services. The company was founded by Ernest H. Cockrell in 1990 and is headquartered in Houston, TX.

St. Luke's Episcopal Health Systems Corp. operated hospitals and clinics. The firm also operated a community teaching hospital and a tertiary referral center. It offered emergency services, heart failure program, blood donor center and many other related services. The company was founded in 1954 and was headquartered in Houston, TX.

Amegy Corp. provides banking services. It offers commercial and personal banking services such as deposit accounts, loans, and trust services. The company also provides brokerage, insurance, and wealth management services. Amegy was founded in 1996 and is located in Houston. TX.