Table 1 – Multi-State Utilities State (Alpha) Utilities AL - Alabama Alabama Gas Company (Owned by Laclede Gas) Alabama Power Company (Owned by Southern Company) Mobile Gas (Owned by Sempra Energy) AR - Arkansas Arkansas Oklahoma Gas Corporation Centerpoint Energy Entergy Oklahoma Gas & Electric Co. (Owned by OGE Energy Corp) Source Gas Southwest Gas Corporation Southwestern Electric Power co. (Owned by AEP) CA - California Liberty Utilities Pacific Power (Owned by PacifiCorp) San Gas & Electric (Owned by Sempra Energy) Southern California Gas Company (Owned by Sempra Energy) Southwest Gas Corporation CO – Colorado Atmos Energy Black Hills Energy (Owned by Black Hills Corp.) Source Gas Xcel Energy CT – Connecticut Connecticut Light & Power (Owned by Northeast Utilities) Connecticut Natural Gas Corp. (Owned by UIL Holdings Corp.) Southern Connecticut Gas Co. (Owned by UIL Holdings Corp.) Yankee Gas (Owned by Northeast Utilities) United Illuminating Co. (Owned by UIL Holdings Corp.) DC – District of Columbia Pepco Holdings, Inc. Washington Gas Light Company DE - Delaware Delmarva Power (Owned by Pepco Holdings, Inc.) FL – Florida Duke Energy Gulf Power (Owned by Southern Company) GA – Georgia Atmos Energy Liberty Utilities Georgia Power Company (Owned by Southern Company)
IA – Iowa Black Hills Energy (Owned by Black Hills Corp.) Liberty Utilities ID – Idaho Avista Utilities Power Intermountain Gas Company (Owned by MDU Resources) Pacific Power (Owned by PacifiCorp) Mountain Power (Owned by PacifiCorp) Questar Gas Company IL – Illinois Ameren (Illinois) Energy Liberty Utilities North Shore Gas (Owned by Integrys) Peoples Gas (Owned by Integrys) IN – Indiana Duke Energy Indiana Michigan Power Co (Owned by AEP) Northern Indiana Public Service Co. (Owned by NiSource) KS – Kansas Atmos Energy Black Hills Energy (Owned by Black Hills Corp.) Kansas City Power & Light KY – Kentucky Atmos Energy Columbia Gas (Owned by NiSource) Duke Energy Kentucky Power (Owned by AEP) LA – Louisiana Atmos Energy Centerpoint Energy Entergy Southwestern Electric Power Co. (Owned by AEP) MA – Massachusetts Berkshire Gas Co. (Owned by UIL Holdings Corp.) Columbia Gas (Owned by NiSource) Liberty Utilities National Grid NSTAR Electric and Gas (Owned by Northeast Utilities) Western Massachusetts Electric Co. (Owned by Northeast Utilities)
MD – Maryland Delmarva Power (Owned by Pepco Holdings, Inc.) Columbia Gas (Owned by NiSource) Pepco Holdings, Inc. Potomac Edison (Owned by First Energy) Washington Gas Light Company ME – Maine Maine Natural Gas Corp. (Owned by Iberdrola USA) Central Maine Power Co. (Owned by Iberdrola USA) MI – Michigan Indiana Michigan Power Co. (Owned by AEP) Michigan Gas Utilities (Owned by Integrys) Xcel Energy MN – Minnesota Centerpoint Energy Plains Natural Gas Co. (Owned by MDU Resources) Minnesota Energy Resources (Owned by Integrys) Otter Tail Corp Xcel Energy MO – Missouri Ameren (Missouri) Kansas City & Light Liberty Utilities Laclede Gas Company MS – Mississippi Atmos Energy Centerpoint Energy Entergy Mississippi Power Company (Owned by Southern Company) Willmut Gas (Owned by Sempra Energy) MT – Montana Avista Utilities Black Hills Power (Owned by Black Hills Corp.) MDU Resources Group, Inc. Northwestern Energy Pacific Power (Owned by PacifiCorp) NC – North Carolina Dominion Duke Energy Piedmont Natural Gas ND – North Dakota MDU Resources Group, Inc. Great Plains Natural Gas Co. (Owned by MDU Resources) Otter Tail Corp Xcel Energy