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TX Entergy Texas Inc. Electric First Energy MD Potomac Edison Electric OH Ohio Edison Electric The Illuminating Company Electric Toledo Edison Electric PA Met-Ed Electric PenElectric Electric Penn Power Electric West Penn Power Electric WV Mon Power Electric Potomac Edison Electric Iberdrola USA ME Maine Natural Gas Corp. Gas Central Maine Power Company Gas NH New Hampshire Gas Corp. Gas NY New York State Electric & Gas Corp. Both Rochester Gas & Electric Corp. Both Idaho Power ID Idaho Power Electric OR Idaho Power Electric Integrys IL North Shore Gas Gas Peoples Gas Gas MI Michigan Gas Utilities Gas MN Minnesota Energy Resources Gas WI Wisconsin Public Service Corp Both Kansas City Power & Light KS Kansas City Power & Light Co Electric MO Kansas City Power & Light Co Electric KCP&L Greater Missouri Operations Electric Laclede Gas Company AL Alabama Gas Corporation Gas MO Laclede Gas Company Gas Liberty Utilities CA Liberty Utilities Electric GA Liberty Utilities Gas IA Liberty Utilities Gas IL Liberty Utilities Gas MA Liberty Utilities Gas MO Liberty Utilities Gas