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Natural Gas Transmission and Distribution

Natural Gas Transmission and Distribution

   Pauls Valley Pipeline Corp

   Southwestern Gas Pipeline, Inc

   Ward Petroleum Corporation

   East Central Oklahoma Gas

   Energy Choska

   US Gas Service LLC

   Dcp Midstream LLC

   Oneok Energy Service CO Lp

   Oneok, Inc

   Northeast Oklahoma Public Fac

   Centerpoint Energy Resources Corp

   Northeast Oklahoma Public Facilities Authority

   Enerfin Resources CO

   Natural Gas Pipeline Company Of America LLC

   Williams Energy Services, LLC

   Cotton Valley Compression Inc

   Oklahoma Natural Gas CO

   Seminole Energy Services, L L C

   Southern Oklahoma Devmnt

   Duke Energy Natural Gas Corporation

   Dorchester Minerals Operating

   Jennings-Hallett Gas Authority

   Hawkins Filtration

   Minco Gas Authority

   Noram Gas Transmission

   Duke Energy Natural Gas Corporation

   Plains All American Olp

   Scissor Tail Energy

   Oneok, Inc

   W D Carter Lp Gas Inc

   Cbm Gas CO

   Sem Gas Lp

   Northeast Oklahoma Public Fac

   Oklahoma Natural Gas CO

   Southern Star Central Gas Pipe

   Enogex Inc

   Exoko Gas Technologies Inc

   Oneok, Inc

   Leann Gas & Water Inc

   Entex Information Service

   Enterprise Products

   Duke Energy

   Hughes Gas System LLC

   Targa Resources

   Mid-America Pipeline CO

   Speller Oil Corp

   Chelsea Gas Authority

   Depew Storage

   Centerpoint Energy Houston Electric LLC

   Semgas Gathering, L L C

   Enogex LLC

   Geary Energy, L L C

   Oneok Inc

   Scissor Tail Energy LLC

   Jerry L Azlin Company

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