Defendant:	ORYX ENERGY COMPANY
:	In re: NATURAL GAS ROYALTIES QUI TAM LITIGATION
Plaintiff - Appellant:	JACK J. GRYNBERG, ex rel. United States
Defendant - Appellee:	PACIFIC INTERSTATE OFFSHORE COMPANY, a California corporation, PACIFIC OFFSHORE PIPELINE COMPANY, a California corporation, SOUTHERN CALIFORNIA GAS COMPANY, a California corporation, PACIFIC GAS AND ELECTRIC COMPANY, PACIFIC GAS TRANSMISSION COMPANY, n/k/a Gas Transmission Northwest Corporation, KN ENERGY, INC., ROCKY MOUNTAIN NATURAL GAS COMPANY, TCP GATHERING CO., KN INTERSTATE GAS TRANSMISSION CO., KN NATURAL GAS, INC., NORTHERN GAS COMPANY, WESTAR TRANSMISSION COMPANY, WILDHORSE ENERGY PARTNERS, L.L.C., QUESTAR PIPELINE COMPANY, WEXPRO COMPANY, QUESTAR GAS MANAGEMENT CO., QUESTAR CORP., QUESTAR GAS CO., UNIVERSAL RESOURCES CORPORATION, COASTAL STATES GAS TRANSMISSION COMPANY, COLORADO INTERSTATE GAS COMPANY, COASTAL CORPORATION, COASTAL OIL & GAS CORP., COASTAL GAS SERVICES COMPANY, GOASTAL GAS MARKETING COMPANY, COASTAL FIELD SERVICES COMPANY, GREAT DIVIDE GAS SERVICES, LLC, DAUGHIN ISLAND GATHERING PARTNERS, COASTAL CHEM, INC., GREELEY GAS COMPANY, ENRON CORPORATION, BLACK MARLIN PIPELINE CO., ENRON OIL & GAS COMPANY, HOUSTON PIPELINE COMPANY, n/k/a Houston Pipe Line Company LLC, LOUISIANA RESOURCES COMPANY, NORTHERN BORDER PIPELINE CO., NORTHERN NATURAL GAS COMPANY, NORTHERN NATURAL GAS PRODUCTION COMPANY, TRANSWESTERN PIPELINE COMPANY, ENRON GAS MARKETING, INC., EL PASO NATURAL GAS COMPANY, TENNESSEE GAS PIPELINE COMPANY, EAST TENNESSEE NATURAL GAS COMPANY, EL PASO ENERGY MARKETING COMPANY, EL PASO FIELD SERVICES COMPANY, CORNERSTONE NATURAL GAS, INC., EL PASO GAS MARKETING COMPANY, EL PASO TENNESSEE PIPELINE CO., PREMIER GAS COMPANY, TRANSCOLORADO GAS TRANSMISSION COMPANY, PANENERGY CORP., DAUGHIN ISLAND GATHERING COMPANY LP, PAN GAS STORAGE CO., PANHANDLE EASTERN PIPE LINE COMPANY, TEXAS EASTERN TRANSMISSION LP, TRUNKLINE GAS COMPANY, UTILICORP UNITED, INC., AQUILA ENERGY CORPORATION, AQUILA GAS PIPELINE CORPORATION, UTILICORP PIPELINE SYSTEMS, INC., UTILICORP ENERGY SOLUTIONS, INC., TRISTAR GAS INVESTMENTS CORP., PUBLIC SERVICE COMPANY OF COLORADO, MGTC, INC., MIGC, INC., KERN RIVER GAS TRANSMISSION COMPANY, NORTHWEST PIPELINE CORPORATION, WILLIAMS COMPANIES, INC., WILLIAMS INTERSTATE NATURAL GAS SYSTEMS, TEXAS GAS TRANSMISSION CORP., TRANSCONTINENTAL GAS PIPELINE CORP., TRANSCONTINENTAL GAS SUPPLY, TRANSCONTINENTAL OIL CORPORATION, WILLIAMS FIELD SERVICES COMPANY, WILLIAMS GAS MARKETING, WILLIAMS GAS SUPPLY, WILLIAMS PRODUCTION COMPANY, MESA OPERATING CO., MESA, INC., MESA TRANSMISSION CO, PIONEER NATURAL GAS COMPANY, GARY-WILLIAMS ENERGY CORPORATION, WESTERN SLOPE REFINING COMPANY, UTAH GAS SERVICE COMPANY, VESSELS ENERGY, INC., VESSELS HYDROCARBONS, INC., VESSELS OIL & GAS COMPANY, INC., VALERO ENERGY CORPORATION, VALERO NATURAL GAS COMPANY, VALERO HYDROCARBONS CO., VALERO NATURAL GAS PARNERS, LP, VALERO FIELD SERVICES COMPANY, CHANDELEUR PIPE LINE COMPANY, CHEVRON PIPE LINE COMPANY, BRIDGELINE GAS DISTRIBUTION COMPANY, LLC, SOUTHERN NATURAL GAS COMPANY, SEA ROBIN PIPELINE COMPANY, FLORIDA GAS TRANSMISSION COMPANY, SONAT, INC., SONAT EXPLORATION COMPANY, SONAT ENERGY SERVICES, SONAT MARKETING COMPANY, L.P., CITRUS CORP., BEAR CREEK STORAGE COMPANY, CORAL ENERGY, L.P., EVANGELINE GAS PIPELINE COMPANY LP, EVANGELINE GAS CORPORATION, TEJAS GAS, LLC, TEJAS GAS OPERATING, LLC, ACADIAN GAS LLC, TEJAS NATURAL GAS, LLC, TRANSOK, LLC, GULF COAST NATURAL GAS COMPANY, TEJAS-MAGNOLIA ENERGY, LLC, GULF ENERGY PIPELINE, LLC, CONSOLIDATED NATURAL GAS COMPANY, CNG TRANSMISSION CORPORATION, CNG PRODUCING COMPANY, EAST OHIO GAS COMPANY, CNG ENERGY SERVICES CORPORATION, COLUMBIA GULF TRANSMISSION COMPANY, COLUMBIA GAS SYSTEM, INC., COLUMBIA GAS SYSTEM SERVICE CORPORATION, COLUMBIA LNG CORPORATION, COLUMBIA GAS TRANSMISSION CORPORATION, COLUMBIA NATURAL RESOURCES, INC., COLUMBIA ENERGY SERVICES CORPORATION, COLUMBIA GAS OF KENTUCKY, INC., COLUMBIA GAS OF OHIO, INC., COLUMBIA GAS OF MARYLAND, INC., COLUMBIA GAS OF PENNSYLVANIA, INC., COMMONWEALTH GAS SERVICES, INC., AVIARA ENERGY CORPORATION, LOUISIANA INTRASTATE GAS COMPANY, LLC, EQUITABLE RESOURCES, INC., EQUITRANS, LP, JEFFERSON ISLAND STORAGE & HUB LLC, DYNEGY, INC., VENICE ENERGY SERVICES COMPANY, L.L.C., ONEOK, INC., ONEOK RESOURCES COMPANY, OKLAHOMA NATURAL GAS COMPANY, CONTINENTAL NATURAL GAS, INC., CONTINENTAL GAS GATHERING, LLC, CONTINENTAL GAS PROCESSING, L.L.C., LG & E NATURAL MKTG, LG&E NATURAL GATHERING AND PROCESSING CO., LG&E NATURAL PIPELINE CO., PUBLIC SERVICE COMPANY OF OKLAHOMA, TRANSOK, INC., predecessor to Transok LLC, k/n/a Enogex Inc., ENOGEX, INC., ENOGEX SERVICES CORPORATION, k/n/a OGE Energy Resources, Inc., OKLAHOMA GAS & ELECTRIC COMPANY, CADDO GAS GATHERING COMPANY, WOODWARD PIPELINE, INC., NORAM USA, INC., NORAM ENERGY CORPORATION, NORMAN GAS TRANSMISSION COMPANY,, NORAM ENERGY SERVICES, INC., NORAM FIELD SERVICES CORP., MISSISSIPPI RIVER TRANSMISSION CORPORATION, ARKANSAS LOUISIANA GAS COMPANY, ARKLA, INC., ARKLA ENERGY RESOURCES, MINNEGASCO AND LOUISIANA INTRASTATE GAS CORPORATION, DELHI GAS PIPELINE CORPORATION, MARATHON OIL COMPANY, MARATHON PIPE LINE COMPANY, KERR-MCGEE CORPORATION, KERR-MCGEE REFINING CORPORATION, CHESAPEAKE ENERGY MARKETING, INC., CONTINENTAL/OKLAHOMA NATURAL GAS GATHERING, LLC, MITCO PIPELINE COMPANY, MITCHELL ENERGY CORPORATION, LEVIATHAN GAS PIPELINE PARTNERS, L.P., VIOSCA KNOLL GATHERING COMPANY, MANTA RAY GATHERING COMPANY, LLC, BLUE DOLPHIN PIPE LINE COMPANY, SEAGULL ENERGY CORPORATION, SEAGULL PIPELINE COMPANY, SEAGULL ENERGY E&P INC., SEAGULL MARKETING SERVICES, SEAGULL MID-SOUTH INC., ENSTAR NATURAL GAS COMPANY, ALASKA PIPELINE COMPANY, WILLISTON BASIN INTERSTATE PIPELINE COMPANY, MONTANA-DAKOTA UTILITIES COMPANY, OVERLAND TRAIL TRANSMISSION LLC, MONTANA POWER COMPANY, NORTH AMERICAN RESOURCES COMPANY, INC., FMC CORPORATION, FMC WYOMING CORPORATION, BURLINGTON RESOURCES OIL & GAS COMPANY, BURLINGTON RESOURCES, INC., BURLINGTON RESOURCES TRADING, INC., LOUISIANA LAND AND EXPLORATION COMPANY, INEXCO OIL COMPANY, INEXCO GAS TRANSMISSION COMPANY, UNOCAL CORPORATION, UNION OIL COMPANY OF CALIFORNIA, SNYDER OIL CORPORATION, SNYDER GAS MARKETING, INC., SOCO OFFSHORE, INC., KAISER-FRANCIS OIL COMPANY, NATURAL GAS PROCESSING COMPANY, WYOMING GAS COMPANY, KCS MOUNTAIN RESOURCES, INC., KCS ENERGY, INC., KCS PIPELINE SYSTEMS, INC., KCS ENERGY MARKETING, INC., MEDALLION GAS SERVICES, INC., GED ENERGY SERVICES, INC., ENERGY WEST INC, CODY GAS COMPANY, ENERGY WEST RESOURCES, INC., CASCADE GAS COMPANY, CONOCO, INC., LOUISIANA GAS SYSTEMS, INC., BARGATH, INC., WILLIAMS PRODUCTION RMT COMPANY, TRANSMONTAIGNE OIL COMPANY, BEAR PAW ENERGY, INC., SOUTHWESTERN ENERGY COMPANY, SOUTHWESTERN ENERGY PRODUCTION COMPANY, SOUTHWESTERN ENERGY SERVICES COMPANY, SOUTHWESTERN ENERGY PIPELINE COMPANY, ARKANSAS WESTERN GAS COMPANY, ASSOCIATED NATURAL GAS COMPANY, ARKANSAS WESTERN PIPELINE COMPANY, SEECO, INC., ARKANSAS OKLAHOME GAS CORP., STEPHENS GROUP, INC., STEPHENS PRODUCTION COMPANY, DOW CHEMICAL COMPANY, DOW CHEMICAL USA, ANR PIPELINE COMPANY, ANR PRODUCTION COMPANY, ANR STORAGE COMPANY, HIGH ISLAND OFFSHORE SYSTEM, U-T OFFSHORE SYSTEM, BLUE LAKE GAS STORAGE COMPANY, CONSUMERS ENERGY, CONSUMERS POWER, MICHIGAN GAS STORAGE COMPANY, CMS ENTERPRISES COMPANY, CMS GAS TRANSMISSION AND STORAGE COMPANY, CMS GAS CO., CMS GAS MARKETING, CMS NOMECO OIL & GAS CO., TERRA ENERGY LTD., MICHIGAN CONSOLIDATED GAS COMPANY, MICHCON PIPELINE COMPANY, AGAVE ENERGY CO., PUBLIC SERVICE COMPANY OF NEW MEXICO, GAS COMPANY OF NEW MEXICO, PNM GAS SERVICES OF NEW MEXICO, SUNTERRA GAS GATHERING COMPANY, SUNTERRA GAS PROCESSING COMPANY, PHILLIPS PIPE LINE COMPANY, APACHE CORPORATION, MOBIL NATURAL GAS, INC., SUPERIOR OIL COMPANY, MOBIL EXPLORATION & PRODUCING U.S., INC., EXXON COMPANY, USA, SHELL OIL COMPANY, SHELL OFFSHORE, INC., SHELL PIPELINE CORPORATION, AMERADA HESS CORPORATION, ATLANTIC RICHFIELD COMPANY, VASTAR RESOURCES, INC., ARCO OIL AND GAS COMPANY, VASTAR GAS MARKETING, INC., ARCO PIPE LINE COMPANY, ARCO PERMIAN, DBA Atlantic Richfield Company, NATURAL GAS PIPELINE COMPANY OF AMERICA, STINGRAY PIPELINE COMPANY, OCCIDENTAL OIL AND GAS CORPORATION, MIDCON CORP., MIDCON GAS SERVICES CORP., OCCIDENTAL ENERGY VENTURES CORP., MIDCON TEXAS PIPELINE OPERATOR, INC., PLACID OIL COMPANY, OXY USA INC., MIDCON MARKETING CORP., CROSS TIMBERS OIL COMPANY, k/n/a XTO Energy Inc., CROSS TIMBERS OPERATING COMPANY, CROSS TIMBERS ENERGY SERVICES, INC., RINGWOOD GATHERING COMPANY, TIMBERLAND GATHERING & PROCESSING COMPANY, COVE POINT LNG LIMITED PARTNERSHIP, ENTEX, INC., CMS NATURAL GAS GATHERING, LLC, SHELL LAND & ENERGY COMPANY, SHELL WESTERN E&P INC., SOUTHERN STAR CENTRAL GAS PIPELINE, INC., f/k/a Williams Natural Gas Company, HUNT PETROLEUM CORPORATION, ATMOS ENERGY CORPORATION, DBA Greeley Gas Company, DCP MIDSTREAM, LP, DUKE ENERGY SERVICES, INC., BARRETT RESOURCES CORPORATION, PLAINS PETROLEUM COMPANY, CITRUS INTERSTATE PIPELINE COMPANY, n/k/a Citrus Energy Services, Inc., EQUITABLE STORAGE COMPANY, n/k/a Jefferson Island Storage & Hub LLC and PONTCHARTRAIN NATURAL GAS SYSTEM, assignee of Louisiana Industrial Gas Supply Systems
Case Number:	06-8099
Filed:	December 5, 2006
Court:	U.S. Court of Appeals, Tenth Circuit
Nature of Suit:	Other Statutory Actions

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