Your search Walker Operating Corporation, et al., Petitioners, v. Federal Energy Regulatory Commission, Respondent,phillips Petroleum Company; Northern States Powercompanies; Lake Superior District Power Company; Naturalgas Pipeline Company of America; Iowa Public Servicecompany; Anadarko Production Company; Pan Easternexploration Company; Inter-city Gas; the Energy Issuesintervention Office of the Minnesota Department of Publicservice; Northern Natural Gas Company, Division of Enroncorp.; Colorado Interstate Gas Company; Dorchester Masterlimited Partnership; Mobil Producing Texas & New Mexicoinc.; Williams Natural Gas Company; Texaco Producing Inc.;conoco, Inc., Intervenors did not match any document.