ARB Inc.
BHP Hawaii Refinery
Brown & Root Braun
Central California Association of Power Producers
Destec Operating Company
Frito-Lay, Inc.
Harbor Cogeneration Company
Hawaii Electric Light Company
Industrial Risk Insurers
L.A. County Sanitation District
Maui Electric Company, LTD.
Mobile Oil Company
Nevada Power Company
Ogden Geothermal Operations, Inc.
Pacific Coast Energy Corp.
Pillsbury, Madison & Sutra
Southern California Gas Company
Stewart & Stevenson Operations
Thums Long Beach Company
Tidelands Oil Production Company
Unocal Corp.
Watson Cogeneration Company