AGIP Petroleum Company, Inc.
Alief Independent School District
American Multi-Cinema Inc.
Arco Chemical Company
AT&T
Belleville Township High School District
CenterPoint Energy
Chevron USA, Inc.
Children’s World Learning Centers
Cinemark, USA
City of Conroe
City of Houston
Cleveland Independent School District
Coastal Gas Gathering & Processing Company
Columbia Healthcare
Crescent Petroleum
Duke Energy
Duval Research and Development Authority
Enserch Exploration, Inc.
Equilon Pipeline Co.
Exxon Ventures (CIS)
Gulf Chemical Corporation
Hankins Lumber Company, Inc.
Houston Housing Authority
HOVENSA, LLC
Hurst Euless Bedford Independent School District
International Petroleum Corporation
Kehl River Boats
Liquid Air Engineering Corporation
Loews Miami Beach Hotel
Lowe’s Companies, Inc.
Lyondell-Citgo Refining Co., Ltd.
Mallard Crossing, Ltd.
Marathon Oil Company
Marathon Power Company
Marek Brothers Systems, Inc.
Mariner Health Care, Inc.
Merey Sweeny
Metropolitan Transit Authority of Harris County, Texas
Occidental Chemical Corporation
Offshore Energy Development Corporation
PanEnergy Corporation
Panhandle Eastern Corporation
PDVSA
Pearland Independent School District
Petrozuata (JV Conoco/PDVSA)
Phillips 66 Company
Reliant Energy (HL&P)
Shell Offshore, Inc.
Sheraton Hotels
Sisters of Mercy Health Center
Spring Branch Independent School District
Temple-Inland Forest Products Corp.
TEPPCO
Texaco Pipelines, Inc.
Texaco, Inc.
The Woodlands Commercial Properties Company, LP
Timex Corporation
Torch, Inc.
Transco Energy Company
Trunkline Energy LNG Company, LLC
Trunkline Gas Company
Valero Energy Corporation