Your search Colorado Interstate Gas Company, Petitioner, v. Federal Energy Regulatory Commission, Respondent,mobil Oil Corp., Northern Natural Gas Co., Ashlandexploration, Inc., Pennzoil Co., Phillips Petroleum Co., Etal., Tenneco Oil Co., Champlin Petroleum Co., Panhandleeastern Pipe Line Co., Truckline Gas Co., Texaco, Inc. Andtexaco Producing, Inc., Intervenors did not match any document.