3. 2020 Company Merger and
Acquisitions Handbook
NADOA Officers and Board 2020
President……….……...…….….……….……..…Luanne Johnson
1st Vice President…….........…….…..............………Lewis Box
2nd Vice President………..……….…….…..... Michele Lawton
Treasurer………………….….…….…....…........Jennifer Kegans
Corresponding Secretary…….….….…....……..Michelle Harris
Recording Secretary……………..….…...…….. Vicki Danielson
Board Advisor………….….……………..…...……..…... Liz Fajen
Director-CAPDOA………………....…...……….....Valerie Wibble
Director-DALWORTH.....................................Kimberly Ginter
Director-DADOA.................................................Stan Vargas
Director-HADOA................................................Victoria Frey
Director-PBADOA........................................... Jennifer Oden
Director-SADOA..............................................Joe Anderson
4. Handbook Information
The Royalty Owner Relations section of this
handbook lists names, addresses & telephone
numbers for participating companies.
The back section of the handbook lists all
companies in alphabetical order in the left
column of the page. The current company to
contact is in the right column
an asterisk (*) following a company name in-
dicates a property sale rather than a merger
or reorganization.
Update Process
Please furnish a complete listing of any new
name or address changes applicable to your
company. Complete the form on the previous
page and return to the email address listed.
5. Please email completed form to administrator@nadoa.org
Date: ___________________________
From: _______________________________________________
Name Title Company
___________________________________________________
Address City State Zip
Phone: ____ - _____ - ______ ext. __________
Fax: ____ - _____ - ______ Email: ________________________
Updates will be made exactly as they appear on this form. Attach additional sheet if necessary.
Company Contacts
Name Title Contact Information
__________________________________________________
__________________________________________________
__________________________________________________
Mergers & Acquisitions and/or Old Company Name & New Company Name
Past Contact (lower case) PRESENT COMPANY (UPPER CASE)
Old Company (lower case) NEW COMPANY NAME (UPPER CASE)
___________________________________________
___________________________________________
___________________________________________
UPDATES
NADOA Company Mergers and Acquisitions
TYPE OF UPDATE
[ ] Personal Change [ ] Address Change [ ] Phone/Fax Update [ ] Other
[ ] Merger [ ] Acquisition [ ] Company Name change
7. Lower Case—Past Contact UPPER CASE—CURRENT CONTACT
6
1400 Corporation AMERICAN EXPLORATION COMPANY
3 TEC Energy Corp PLAINS E & P CO.
3300 Corporation AMERICAN EXPLORATION COMPANY
3 TECH Energy Corp PXP GULF COAST, INC.
44 Canyon, LLC CHEVRON MIDCONTINENT, LP
4700 Corp AMERICAN EXPLORATION COMPANY
500 Corporation 1987 AMERICAN EXPLORATION COMPANY
820 Management Trust 820 MT O&G TX (WY)(LA)(MULTI-STATE)
A & J Oil Co. NELSON R THOMAS
A & K Petroleum 1957 KERR-MCGEE CORP
A & K Petroleum 1957 DEVON ENERGY
A.E. Acquistion Corp. see Dominion Exploration & Production
AA Development Corp. 1984 AA ENERGY CORP (AMR ENERGY
Abaca Oil Co. 1963* see Dominion Exploration & Production
Abbeville Operating Corp. D.C. BINTLIFF
ABCO Energy Corp. 1983 TEJAS OIL & GAS CO
ABEL & BANCROFT
Aberdeen Petroleum 1975 DEVON ENERGY
Aberdeen Petroleum Corp. 1976 DEVON ENERGY
Abney Oil Co. 1980 P. & O. FALCO, INC
ABARTA Oil & Gas Co TALISMAN ENERGY USA INC
ABTEC Chemical Company 1980 TOTAL E&P USA INC
Acadia Petroleum Corp. FOUNTAIN OIL & GAS, INC.
Access Energy Corp YAHKEE GAS CO.
Acrol Oil Co. 1966 JAMES DONOGHUE
Ada Oil Corporation 1983* TOTAL E&P USA INC
ADA Resources 1979 ADAMS RESOURCES & ENERGY, INC.
ADAMS RESOURCES & ENERGY, INC.
Adams Resources Exploration Corp. ADAMS RESOURCES & ENERGY, INC.
Addington Brothers Mining Co. 1976 ASHLAND OIL INC.
Adena Exploration Inc. WASHITA PRODUCTION CO.
Adobe Gas Cos. APACHE CORP
Adobe Gas Pipeline APACHE CORP
Adobe Oil & Gas Corp. 1985 DEVON ENERGY
Adobe Oil Co. 1977 DEVON ENERGY
Adobe Resources Corp. DEVON ENERGY
Adobe Royalty, Inc. DEVON ENERGY
ADVANTAGE OIL & GAS, LTD.
AEC (Alberta Energy Co., Ltd) ENCANA CORP.
AEC Gas Company see Dominion Exploration & Production
AEC Gathering Services (USA), Inc. ENCANA GATHERING SERVICES (USA)
8. Lower Case—Past Contact UPPER CASE—CURRENT CONTACT
7
AEC Gulf of Mexico, Inc. ENCANA GULF OF MEXICO, INC.
AEC International (USA) Inc. ENCANA INTERNATIONAL (USA) INC.
AEC Marketing (USA) Inc. ENCANA MARKETING (USA) INC.
AEC Oil & Gas (USA) Inc. ENCANA OIL & GAS (USA) INC.
AEC Oil & Gas Co. Partnership ENCANA OIL & GAS PARTNERSHIP
AEC Oil & Gas Co., Ltd. ENCANA OIL & GAS CO. LTD
AEC Pipelines (USA) Inc. ENCANA PIPELINES (USA) INC
AEC Pipelines, Ltd ENCANA PIPELINES, LTD
AEC Storage & Hub Services, Inc. ENCANA GAS STORAGE INC.
AEC West Ltd. ENCANA WEST LTD
AERA ENERGY, LLC
Aetna Oil Co. 1950 STATOIL ENERGY INC
Agate Petroleum Inc. ST. MARY LAND & EXLORATION CO.
AGM Incorporated MAXUS EXPLORATION
AGS INVESTMENTS LLC managed by AVIVA
AGS LIMITED PARTNERSHIP managed by AVIVA
Aikman Brothers, TX Partnership Aikman Brothers, LLC
Aikman Petroleum, Inc 1983 * ENERTEC CORP.
Air Pilot Oil HESS COMPANIES
AJA Resources ADAMS RESOURCES & ENERGY
Alamco, Inc. CHESAPEAKE ENERGY CORP.
Alameda Energy, Inc. SLAWSON EXPLORATION COMPANY,
Alamo Oil & Gas, Ltd. GLOBAL NATURAL RESOURCES CORP.
Alamo Petroleum FARMLAND INDUSTRIES, INC.
Alamo Petroleum Co. ANADARKO E&P COMPANY, LP
Alaska Interstate Co. 1982 UNIMAR CORP.
Alberta Energy Co., Ltd. (AEC, Ltd.) ENCANA CORP.
Alco Oil & Gas 1969 ANADARKO E&P COMPANY, LP
Alcorn Oil Co 1929 CONOCOPHILLIPS
Alder Oil Co. 1946 NEWMONT OIL CO.
Alene Oil Co. 1989 TENKAY RESOURCES, INC.
Alexander Energy Corp. SANDRIDGE ENERGY, INC.
Allegheny Land & Mineral 1983 ALAMCO INC.
Allegro Petroleum, Inc. NORTHSTAR RESOURCES, INC.
Allen Oil Co. ANADARKO E&P COMPANY, LP
ALLIANCE PETROLEUM CORP.
Allied Ashland STATOIL ENERGY INC
Allied Chemical CONOCOPHILLIPS
Allied Chemical Corp CONOCOPHILLIPS
Allied Oil Co. ASHLAND OIL INC.
Allied Oil Co. 1948 ASHLAND OIL & REFINING CO.
9. Lower Case—Past Contact UPPER CASE—CURRENT CONTACT
8
Alma Oil Co. 1915 Shell Oil Co.
Alminex LTD CANADIAN SUPERIOR
Alpar Resources PLAINS EXPLORATION & PRODUCTION
Alpar Resources Inc. 1981 ANADARKO E&P COMPANY, LP
Alta Energy Corp. DEVON ENERGY CORP.
Alta Natural Resources, LLC SILVER CREEK RESOURCES, LLC
Altair Oil & Gas Co. 1964 PIONEER NATURAL RESOURCES USA,
Altura Energy OCCIDENTAL PERMIAN, LP
Amalgamated Bonanza Petro 1979 CHEVRON CORP
Amarex, Inc. CALPINE NATURAL GAS, LP
Amarex, Inc. 1985 TGX CORP. (Templeton Energy)
Amarillo Minerals, Inc. 1970 PIONEER NUCLEAR, INC.
Amarillo Oil Co. PIONEER NATURAL RESOURCES USA,
Amarillo Oil Co. 1986 PIONEER NATURAL RESOURCES USA,
Amax Oil & Gas, Inc. ANADARKO E & P CO.
Amax Petroleum Corp. ANADARKO E & P CO.
Ambassador Oil Corp. 1965 ANADARKO PETROLEUM CORPORA-
AMBRIT ENERGY CORP.
Amcan Oil Corp 1970 CONOCOPHILLIPS
Amcan Oil Corp. 1952 LARIO OIL & GAS CO.
Amcog Acquisition Corp. see Dominion Exploration & Production
Amdel Inc. 1977 TOTAL E&P USA INC
Amerac Energy Corp. UNIT CORP.
Amerada Hess Corp. HESS CORPORATION
Amerada Petroleum Corp. 1969 HESS CORPORATION
American Agricultural Chemical CONOCOPHILLIPS
American Cometra Inc. RANGE RESOURCES INC.
American Corporate Resources, Inc. CONOCOPHILLIPS
AMERICAN ENERGY EXPLORATION
American Exploration Acquisition Co. see Dominion Exploration & Production
American Exploration Acquisition - VI Corp. see Dominion Exploration & Production
American Exploration Co. (Houston) see Dominion Exploration & Production
American Exploration Gas Systems Corp. see Dominion Exploration & Production
American Exploration Operating Co. see Dominion Exploration & Production
American Exploration Production Co. see Dominion Exploration & Production
American Independent Oil Co. 1970 CONOCOPHILLIPS
American Liberty Oil Co. TOTAL E&P USA INC
American Liberty Oil Co. 1957 TOTAL E&P USA INC
American Maracaibo FELMONT OIL CORP.
American Maracaibo Co. 1958 FELMONT OIL CORP.
American Metal Co. (LTD) ANADARKO E & P CO.
10. Lower Case—Past Contact UPPER CASE—CURRENT CONTACT
9
American Monertra, Inc. AVENEG, INC
American National Petroleum Company PATRICK PETROLEUM CO.
American Nat'l Gas Production SANDRIDGE ENERGY, INC.
American Natural Energy Corp. SANDRIDGE ENERGY, INC.
American Natural Gas Production Co. EL PASO E&P COMPANY, LP
American Net Profits Partnership - VII Ltd. see Dominion Exploration & Production
American Oil Co 1961 BP AMERICA
American Oil Co. of Texas 1952 EXXON MOBIL CORP.
American Pacific International 1979 PETRO LEWIS CORP.
American Pacific, Int'l (API) HESS CORPORATION
American Petrofina Co. of Texas 1985 TOTAL E&P USA INC
American Petrofina Expl. Co. 1994 TOTAL E&P USA INC
American Petrofina Foundation 1990 TOTAL E&P USA INC
American Petrofina Marketing Inc. 1985 TOTAL E&P USA INC
American Petrofina Pipeline Company ALON USA LP
American Petrofina, Inc. 1991 TOTAL E&P USA INC
American Petroleum HESS CORPORATION
American Producing Properties Co. see Dominion Exploration & Production
American Production Partnership LTD II, etc see Dominion Exploration & Production
American Quasar Petroleum Co. 1987 UNIT CORP. CO.
American Republic Corp. 1954 BP AMERICA
American Reserve Corporation see Dominion Exploration & Production
AMERICAN RESOURCES INC.
American Royalty Trust 1987 FREEPORT-MCMORAN ENERGY PTNRS
Ameriplor Corp. see Dominion Exploration & Production
Ameritrus Petroleum Corporation JP MORGAN CHASE & CO
Ameritrust Texas, N.A. JP MORGAN CHASE & CO
Amerox Acquisition Corp. see Dominion Exploration & Production
Amex 1980, Ltd. see Dominion Exploration & Production
Amex 1981, Ltd. see Dominion Exploration & Production
Amex 1982, Ltd. see Dominion Exploration & Production
Amex 1983, Ltd. see Dominion Exploration & Production
Amex Oil Company see Dominion Exploration & Production
Amex Production Partnership Ltd. see Dominion Exploration & Production
Amherst Coal Co. 1981 MAXUS ENERGY CO.
Aminoil Dev. Inc. BURMAH OIL & GAS CO.
Aminoil USA Inc. 1984 CONOCOPHILLIPS
Amkam Acquistion Corp. see Dominion Exploration & Production
Amoco Canada Petro Co. Ltd. BP CANADA
Amoco Corp. BP AMERICA
Amoco Production Co. MIDWEST OIL CORP & PANAM PET
11. Lower Case—Past Contact UPPER CASE—CURRENT CONTACT
10
Amoco Production Co. BP AMERICA
AMPCO Corporation 1977 TOTAL E&P USA INC
Ampeco 1976-1 Ltd. BROCK EXPLORATION CORPORATION
Ampeco 1980-1 Ltd. BROCK EXPLORATION CORPORATION
Amquest Corp. 1985 BROCK EXPLORATION CORPORATION
Amtane, Inc. BURMAH LP GAS INC.
Amtexas (Natural Gasoline) WARREN AMERICAN OIL CO.
ANADARKO E&P COMPANY, LP OCCIDENTAL PETROLEUM COMPANY
ANADARKO PETROLEUM CORPORATION OCCIDENTAL PETROLEUM COMPANY
Anadarko Production Corp. 1985 ANADARKO PETROLEUM CORPORA-
Anchor Exploration Co. KERR-MCGEE CORP
Anchor Oil & Gas Co. 1917 CONOCOPHILLIPS
Ancon Partnership, Ltd. see Dominion Exploration & Production
ANDERMAN OPERATING CO., INC.
Anderman/Smith Operating Co. ST. MARY LAND & EXLORATION CO.
Anderson & Kerr KERR-MCGEE CORP
Anderson Exploration, Ltd (Canada) DEVON ENERGY CORP.
Anderson Oil Co. CHESAPEAKE ORC, LLC
Anderson Summit Inc. 1986 DERRICK PETROLEUM INC.
Anderson-Prichard BURLINGTON RESOURCES
Andover Oil Co. 1982 SANTA FE MINERALS, INC.
Anderson Oil & Gas, Inc ANDERSON FEAZEL MANAGEMENT,
ANDREW OIL AND GA PARTNERSHIP
Andrew Oil and Gas Royalties, Inc. ANDREW OIL AND GAS PARTNERSHIP
Andrews Petroleum Corp. 1924 FOREST OIL CORP.
ANDREWS PRODUCTION CO.
Anglo Energy Ltd. 1983 ROSEWOOD RESOURCES INC.
ANM Services Corp. see Dominion Exploration & Production
Annie R. Bass Grandson's Trust fbo Sid ARBGT (SRB) O&G TX (WY)(LA)(MULTI-
Annie R. Bass Grandson's Trust fbo Lee ARBGT (LMB) O&G TX (WY)(LA)(MULTI-
Annie R. Bass Grandson's Trust fbo Rob ARBGT (RMB) O&G TX (WY)(LA)(MULTI-
ANR Production Co. 1985 EL PASO E&P COMPANY, LP
Anschutz Oil Co. Inc. 1970 ANSCHUTZ CORP., INC.
Anson Corporation CHESAPEAKE EXPLORATION LLC
Anson Production Corporation CHESAPEAKE EXPLORATION LLC
Antares Oil 1986 OXFORD CONSOLIDATED, INC.
Antero Resources I, LP XTO ENERGY INC.
Antioch Gathering Company 1992 ANADARKO PETROLEUM CORPORA-
Antioch Texas Gathering Co. 1992 ANADARKO PETROLEUM CORPORA-
ANVIL PETROLEUM CORP.
AOL Holdings, Inc. CHESAPEAKE ORC, LLC
12. Lower Case—Past Contact UPPER CASE—CURRENT CONTACT
11
APACHE CORP.
Apache Corporation 1985 DAVIS OIL CO. (DAVIS PETRO CORP.)
Apache Oil & Gas Corp. DOW CHEMICAL
APCOT_FINADEL Joint Venture 1986 TOTAL E&P USA INC
APD Company 1989 APACHE CORP
APEX OIL CO.
Appalachian Expl. Inc. GREAT LAKES ENERGY PTRS, LLC
APX Corporation 1992 ANADARKO PETROLEUM CORPORA-
APX Western Corporation 1992 ANADARKO PETROLEUM CORPORA-
Aquilla Energy Resources BLACK HILLS ENERGY
Arcadia Resources, LP DORCHESTER RESOURCES, LP
Arch Mineral Corp. 1969 ASHLAND OIL INC.
Arch Oil & Gas Company 1993 WAGNER & BROWN, LTD.
Arch Petroleum, Inc. PLAINS EXPLORATION & PRODUCTION
ARCO Oil & Gas Co. BP AMERICA
Arco Permian Basin BP AMERICA
Ardmore Oil Co. 1917 EXXON CORPORATION
Argent Energy, Inc. 1990 EL PASO E&P COMPANY, LP
Argo Oil Corp. 1961 BP AMERICA
Argo Petroleum 1987 * NATIONAL FUEL GAS CO.
Argonaut Energy Corporation BROCK EXPLORATION CORPORATION
Argus Production Co. HESS CORPORATION
Arkansas Fuel Oil Corp. OCCIDENTAL OIL & GAS CORPORATION
Arkla Exploration 1993 DEVON ENERGY
Arkla Inc. CENTERPOINT ENERGY, INC.
Arkoma Holding LLC XTO ENERGY INC.
Arkoma Pittsburg Holding Corporation CHESAPEAKE EXPLORATION LLC
Arkoma Production Co. 1994 DEVON ENERGY
Arrowhead 1969 APACHE CORP.
Arrowhead Energy Corp. RELIANCE ENTERPRISES, INC.
ARROWSTONE PETROLEUM CORP.
ARS CONTROL ACCOUNT LP managed by AVIVA
Artex Exploration Company DEVON ENERGY
Asamera, Inc. 1988 GULF CANADA RESOURCES LTD.
ASCA LTD. managed by AVIVA
Ashland Exploration Company ASHLAND OIL, INC.
Ashland Oil & Refining Co. ASHLAND OIL, INC.
ASHLAND OIL INC.
Ashland Oil, Inc. 1979 * PIONEER NATURAL RESOURCES USA,
Associated Natural Gas Corp. DUKE ENERGY FIELD SERVICES
Aswell Inc. 1970 TOTAL E&P USA INC
13. Lower Case—Past Contact UPPER CASE—CURRENT CONTACT
12
Atapaz Petroleum, Inc. 1979 WAINOCO OIL CORP.
Atlantic Refining Co. 1966 BP AMERICA
Atlantic Richfield Co. BP AMERICA
Atlas Corporation 1958 TOTAL E&P USA INC
Auora Gasoline Co. 1959 MARATHON OIL COMPANY
Aus-Tex Oil & Royalty Corp. 1975 HOUSTON OIL & ENERGY, INC.
Austral Oil Co. 1978 * EXXON MOBIL CORP.
Austral Oil Co., Inc. 1982 see Dominion Exploration & Production
Avance Oil & Gas Co. ANADARKO E&P COMPANY, LP
Avanti CHESAPEAKE
AVEN GAS & OIL, INC.
Aviara Energy Corporation XTO ENERGY INC.
AVIVA, INC.
AX Acquisition Corp. see Dominion Exploration & Production
Axcon Corp. see Dominion Exploration & Production
Axem Energy Co. KERR-MCGEE CORP
Axem Resources Incorporated KERR-MCGEE CORP
Axem-Blackbird LLC KERR-MCGEE CORP
Axem-Bluebell LLC KERR-MCGEE CORP
Axem-JCEC LLC KERR-MCGEE CORP
Axem-Production LLC KERR-MCGEE CORP
Axroyalty, Inc. KERR-MCGEE CORP
AZL Resources 1983 TOSCO CORP.
Aztec Energy Corp. 1984 WICHITA RIVER OIL CO.
Aztec Oil and Gas Co. 1976 CONOCOPHILLIPS
Aztec Resources Corp. 1985 WEPCO ENERGY CO.
B & A Pipe Line Company 1941, The Henderson Clay Products, Inc.
B & B Drilling 1965 EXXON MOBIL CORP.
B & N Petroleum, Inc. 1988 ANADARKO E&P COMPANY, LP
B.E. Oil and Gas Company BROCK EXPLORATION CORPORATION
BALBOA EXPLORATION CO.
Balco Energy PLAINS RESOURCES, INC.
Baldridge & King ANADARKO E&P COMPANY, LP
Ballard & Cordell PLAINS RESOURCES, INC.
Bankline Oil Co. 1959 CONOCOPHILLIPS
Barber Oil Exploration Corp. 1981 FREEPORT-MCMORAN ENERGY PTNRS
Barber Oil Reserves 1965 BP AMERICA
Barfield Oil Corp. 1989 EVERGREEN OPERATING CORP.
Bargo Energy Corp. PETROHAWK PROPERTIES, LP
Barnsdall Oil Co. 1949 SUNOCO PARTNERS MKTG & TERM-
Barnett Resources Corp WILLIAMS PRODUCTION RMT. CO.
14. Lower Case—Past Contact UPPER CASE—CURRENT CONTACT
13
Baron Minerals LP LINN ENERGY HOLDINGS LLC
Baron Minerals Management LLC LINN ENERGY HOLDINGS LLC
Barron Surface Estates LLC LINN ENERGY HOLDINGS LLC
BARTELL EXPLORATION
Baruch-Foster Corp. APACHE CORP.
Basics Oil & Gas Inc. LONGVIEW ENERGY COMPANY
Basin Oil Company THE WISER OIL CO.
Basin Petroleum Corp. 1980 CHEVRON CORP
Bass Enterprises Production Company BEPCO, L.P.
BASS PARTNERSHIP
Bates Oil Corp. LASMO ENERGY CORP.
Bay Petroleum 1955 see Tenneco Inc
Bayard Drilling Technologies, Inc. NABORS DRILLING USA, LP
Bayard Drilling, LLC NABORS DRILLING USA, LP
Bayou Resources, Inc. 1987 NEWFIELD EXPLORATION MID-
Bayou Resources, Inc. 1987 UNIT PETROLEUM CORP. (50%)
Bayview Petroleum EXXON MOBIL CORP.
BBX Oil Corporation GLADSTONE ROYALTIES LLC
Beacon Exploration Co. TOKLAN OIL AND GAS CORPORATION
Beacon Oil Co. 1981 ENERGY SOURCES INC.
Bear State Oil Co. 1928 MARATHON PETROLEUM CO.
Beard & Hammond JGM COMPANY
Beard Oil Co. 1988 ANADARKO E&P COMPANY, LP
Beard Oil Company SENSOR OIL & GAS, INC.
Beardmore Oil Inc. 1973 CONOCOPHILLIPS
Beau Coup Oil & Gas Corp. 1986 GREAT RIVER OIL & GAS CORP.
Belcher Oil Co. 1977 EL PASO E&P COMPANY, LP
Belco Development Co 1983 EOG RESOURCES, INC.
Belco Energy Corp. 2001 KERR-MCGEE OIL & GAS ONSHORE, LP
Belco Energy I, LP KERR-MCGEE OIL & GAS ONSHORE, LP
Belco Oil & Gas 1983 EOG RESOURCES, INC.
Belco Oil & Gas 2001 (different company) KERR-MCGEE OIL & GAS ONSHORE, LP
Belco Petroleum Co. 1983 EOG RESOURCES, INC.
Belco Petroleum North America, Inc. EOG RESOURCES, INC.
Belco Wyoming Corporation EOG RESOURCES, INC.
Belcor, Inc SILVER ASSETS, INC
BELDEN & BLAKE ENERGY CO.
Bell Petroleum Co. 1975 * PACIFIC ENTERPRISES OIL CO. (USA)
Bellwether Exporation Co. PETROHAWK PROPERTIES, LP
BelNorth Energy Corporation EOG RESOURCES, INC.
BelNorth Petroleum Co. 1986 EOG RESOURCES, INC.
15. Lower Case—Past Contact UPPER CASE—CURRENT CONTACT
14
Belridge Oil Co. 1979 Shell Oil Co.
Benedum-Trees Oil Co. 1982 KERR-MCGEE CORP.
BeneTex 88, Ltd. KERRCO INC.
BeneTex Oil and Gas Ltd. KERRCO INC.
BENGAL OIL & GAS
Benjamin F. Hackett, P.C. BENJAMIN F. HACKETT & ASSOCIATES
Berea Oil & Gas Corp. 1985 ENERVEST MANAGEMENT PARTNERS
Berkshire Oil Co. 1961 FRANKEL OIL & GAS CO.
Berexco Inc. MANUEL CORPORATION
Beta Operating Co., LLC PETROHAWK PROPERTIES, LP
BHP PETROLEU (AMERICAS) INC.
Big Dipper Oil Co. 1919 ASHLAND OIL INC.
Big Five Oil Corp. 1985 ARROWSTONE PETROLEUM CORP.
Big Piney Oil & Gas Co. SANDRIDGE ENERGY, INC.
Big Piney Oil & Refining Co. 1955 SANDRIDGE ENERGY, INC.
Bigheart Pipeline Company (see Koch Oil)
Bishop Oil Co. 1961 Shell Oil Co.
Bison Energy Corp PLAINS EXPLORATION & PRODUCTION
Bison Production Company PLAINS EXPLORATION & PRODUCTION
BK Energy Company BK EXPLORTION CORP.
B-L ASSOCIATES
BLACK BEAR LP managed by AVIVA
Black Hawk Resources Corp OXFORD CONSILIDATED, INC.
BLACK HILLS GAS RESOURCES, INC.
Black Jack Resources, Inc. ANADARKO E&P COMPANY, LP
BLACK TYPE LP managed by AVIVA
Blackbird Co. (DISSOLVED) KERR-MCGEE CORP
Blackfoot-Cherokee Energy, Inc. 1981 PLAINS PETROLEUM CO.
Blackgold Energy Resources Inc. 1987 SNYDER OIL PARTNERS LP
Blackhawk Drilling Co. 1931 KERR-MCGEE CORP.
Blackhawk Oil Co. PETROHAWK PROPERTIES, LP
BLACKSTONE MINERALS CORP.
Blaffer & Farish 1917 EXXON MOBIL CORP.
BlaMaCa Resources, Ltd. KERRCO INC.
Blanco Oil Co. DALEN RESOURCES OIL & GAS CO.
Bloomfield Royalty Corp. TEXON ENERGY CORP.
BLUE FOX ROYALTY LP managed by AVIVA
Bluebird Investment Company 1948 TOTAL E&P USA INC
BMC Development #1, LP PETROHAWK PROPERTIES, LP
BN Financial Services, Inc.
BN Geothermal, Inc CONOCOPHILLIPS
16. Lower Case—Past Contact UPPER CASE—CURRENT CONTACT
15
BN Leasing, Inc CONOCOPHILLIPS
BNI Energy CONOCOPHILLIPS
BNL Development Corp. CONOCOPHILLIPS
Bodcaw Oil Properties 1979 PLACID OIL CO.
Bogert Oil Co. DOMINION OKLA TEXAS EXPL & PROD.
Bois D'Arc Energy Inc STONE ENERGY CORPORATION
Bolero Energy Corp. 6/89 KAISER-FRANSIS OIL COMPANY
BOLTEX OIL & GAS CO.
Bomac Exploration Co. 1975 SAMSON PROD SERVICES COMPANY
BONANZA PETROLEUM, INC.
Bonanza Resources, Inc. 1984 PLAINS PETROLEUM CO.
Bonnville Fuels Corp. EVERGREEN RESOURCES, INC.
Bonray Driling Corp. NABORS DRILLING USA, LP
Boomer Marketing Corp. SANDRIDGE ENERGY, INC.
BORDER EXPLORATION CO.
Boston-Wyoming Oil Co. 1928 CONOCOPHILLIPS
Boswell Corp. SAMSON PROD SERVICES COMPANY
Boundary Acquisition, Inc. see Dominion Exploration & Production
Boundry Oil Co. see Dominion Exploration & Production
Boundry Properties, Inc. see Dominion Exploration & Production
BOUNTY PRODUCTION CO.
Boyd Oil Corp. 1924 FOREST OIL CORP.
BP AMERICA
BP Exploration & Production Inc. BP AMERICA
BP Exploration 1990 TEXICON OIL & GAS CO.
Bracell Petroleum MURPHY OIL CORP.
Bracken Exploration DIVERSIFIED ENERGIES, INC.
Bradco Oil & Gas Co. NIKLOS OIL & GAS CO.
Bradley Producing Corp. 1984 HESS CORPORATION
Bradley Resources HESS CORPORATION
Bradmar Petroleum Corp. SANDRIDGE ENERGY, INC.
Brammer Supply (O&G Div) HEP OIL CO LTD
Brandywine Oil BP AMERICA
Brayton Land 1989 AMAX Coal Company
Bravo Natural Resources Inc. CHESAPEAKE EXPLORATION LLC
Brazos Coal, Ltd. THOUSAND OAKS DEV. CO. JT. VEN.
Brazos Exploration Co. GOLIAD OPERATING COMPANY
Brazos Oil & Gas Co. DOW CHEMICAL CO.
Brazos Production Co. GOLIAD OPERATING COMPANY
Brazos Young Corp. 1989 TENKAY RESOURCES INC.
BRECKENRIDGE OPERATING CO.
17. Lower Case—Past Contact UPPER CASE—CURRENT CONTACT
16
Brewer Oil & Gas Co. HESS CORPORATION
BRG Petroleum Inc. 1998 DEVON ENERGY PROD. CO, LP
BRG Petroleum Corp. 2005 CHESAPEAKE ENERGY CORP.
BRG ENERGY INC.
Bridewill & Darsey DARSEY OIL CO.
Bridge Oil (USA) Inc. PARKER & PARSLEY DEVELOPMENT
Bridge Oil Company PARKER & PARSLEY DEVELOPMENT
Bridge Oil Company, L.P. PARKER & PARSLEY DEVELOPMENT
Bridge Oil Production Company PARKER & PARSLEY DEVELOPMENT
Bridger Exploration Inc 1984 OXFORD CONSILIDATED, INC.
Bridger Petroleum Corp 1978 PRESDIO OIL CO.
Brigham Exploration STATOIL
Brighton Acquisitions Company LLC CHESAPEAKE EXPLORATION LLC
Brinson & Colline UNITED PRODUCTION
British American Oil Producing Co. 1956 DALEN RESOURCES OIL & GAS CO.
BRITISH PETROLEUM CO. PLC
Britoil PLC 1987 * see Dominion Exploration & Production
Britoil PLC 1988 BRITISH PETROLEUM CO. PLC
Britoil U.S. Holdings Inc. see Dominion Exploration & Production
Britoil Ventures, Inc. HIGHMOUNT EXPLORATION & PRODUC-
Brittany Petroleum Ltd Company CHESAPEAKE EXPLORATION LLC
BROCK EXPLORATION CORPORATION
Brock Gas Systems, Inc. BROCK EXPLORATION CORPORATION
Brock Hydrocarbons, Inc. BROCK EXPLORATION CORPORATION
Brock Oil and Gas Corporation BROCK EXPLORATION CORPORATION
Brock Oil Corporation BROCK EXPLORATION CORPORATION
Brock Production Corporation BROCK EXPLORATION CORPORATION
Brock Resources, Inc. BROCK EXPLORATION CORPORATION
Broken Arrow Royalty Co TOKLAN OIL AND GAS CORPORATION
Brookhaven ENERGEN RESOURCES CORP.
Brookhaven Oil Co. 1979 DALEN RESOURCES OIL & GAS CO.
Brooks Hail Oil Co. 1984 SANDRIDGE ENERGY, INC.
Brown Seal Oil Corp. 1924 FOREST OIL CORP.
Brunner ENGELKE
Bryson Oil & Gas Corp. 1988 CASPEN OIL, INC.
BTU Operating Co. 1986 ENEX RESOURCES CORP.
Buckhorn Petroleum Co. 1984 MCN EXPLORATION
Buckhorn Petroleum Co. 1986 APACHE CORP.
Buffalo Oil Co. 1958 CONOCOPHILLIPS
Buffalo Oilfield Ser. Inc. GREAT LAKES ENERGY PARTNERS LLC
Bunker Exploration, Inc. 1984 CHAPMAN ENERGY INC.
18. Lower Case—Past Contact UPPER CASE—CURRENT CONTACT
17
Burkhard Petroleum Corp. 1987 ZG ENERGY CORP.
Burlington Northern Oil & Gas Div. CONOCOPHILLIPS
Burlington Northern Petroleum Inc. CONOCOPHILLIPS
Burlington Resources Oil & Gas Co, LP CONOCOPHILLIPS
Burmah Oil & Gas Co. 1976 * CONOCOPHILLIPS
Bush Exploration 1982A-Ltd. CABOT OIL & GAS CORP.
BUTTES OIL & GAS CO.
Byrd Oil Corp. EXXON MOBIL CORP.
C & K Petroleum, Inc. 1980 UNIMAR CORP.
C.F. Braun Co. 1980 SANTA FE MINERALS, INC.
C.J. Wrightsman W.A. MONCRIEF
C.U. Bay see Tenneco Inc
C.V. Lyman Shell Oil Co.
C.J. Wrightsman W.A. MONCRIEF, JR.
Calco 1961 CHEVRON CORP
California Co. 1961 CHEVRON CORP
California Oil Co. 1977 CHEVRON CORP
California Oilfields, Ltd. 1913 Shell Oil Co.
California Petroleum Corp. 1928 CHEVRON CORP
CALLON PETROLEUM CO.
Calpine Corporation ROSETTA RESOURCES INC
Calpine Natural Gas Co. ROSETTA RESOURCES INC
Calplans Oil & Gas Corp. MISSION RESOURCES PARTNERS LP
CALUMET LUBRICANTS CO.
Calumet Oil Co. CHAPARRAL ENERGY INC.
Calvert Exploration Co. 1975 SUNOCO PARTNERS MKTG & TERM-
Calvin Petroleum Corp. 1985 ENERGY OIL, INC.
Cambridge Related Assets, Inc. GLOBAL NATURAL RESOURCES CORP.
Cambridge Royalty Co. 1986 GLOBAL NATURAL RESOURCES CORP.
Cameron Meadows Land Co. 1978 SANTA FE MINERALS, INC.
Camroy Acquisition Corporation GLOBAL RESOURCES CORP
Camroy Acquisition, Inc. GLOBAL RESOURCES CORP
Canaan CHESAPEAKE KNAN ACQUISITION, LLC
Canterra Energy Ltd. HUSKY OIL LTD.
Canterra Petroleum, Inc. 1988 DANOV CORPORATION
Canterra Petroleum, Inc. 1988 DABROS PROPERTIES, INC.
Canusa Energy, Inc. 1984 PLAINS PETROLEUM CO.
Canyon Energy, Inc. 1993 WAGNER & BROWN, LTD.
Capital Fina Oil Company Inc. 1979 TOTAL E&P USA INC
Capitan, Inc. E.E. NEARBURG
Capitol Fina Pipeline Company 1985 TOTAL E&P USA INC
19. Lower Case—Past Contact UPPER CASE—CURRENT CONTACT
18
Carbon Energy Corp. USA PIONEER NATURAL RESOURCES USA,
Cardinal Petroleum Co. CONOCOPHILLIPS
Caribou Four Corners 1984 HEADINGTON INVESTMENTS, INC.
Carl Oil & Gas 1988 MCFARLAND ENERGY, INC.
Carlin Oil & Gas Co. KAISER-FRANCIS OIL COMPANY
Carolina Oil & Gas OCCIDENTAL OIL & GAS CORPORATION
Carper Drilling MCFARLAND ENERGY, INC.
Carr Oil Co. SUNOCO PARTNERS MKTG & TERM-
Cartel Inc. 1988 WASHITA PRODUCTION CO.
Carter Oil Co. 1959 EXXON MOBIL CORP.
Cascade CHEVRON CORP
Case-Pomeroy Oil Corp. 1952 * FELMONT OIL CORP.
Casex Co. HESS CORPORATION
CASTLE ENERGY CORP. 1985
CATAMOUNT ROYALTY PARTNERS, LTD. managed by AVIVA
CAVENHAM ENERGY RESOURCES
Cayman Corporation CAYMAN RESOURCES CORPORATION
Cayman Exploration Corporation CAYMAN RESOURCES CORPORATION
CAYMAN RESOURCES CORP.
CDC Ada, Inc. SUNDOWN ENERGY INC.
CEI Bristol Aquisitions CHAPARRAL ENERGY INC.
Celeron Corp. 1987 CHEVRON CORP
Celeron Corp. 1987 EXXON MOBIL CORP.
Celsius Energy Company QUESTAR EXPLORATION AND PRO-
Cenaro Oil & Gas CHEVRON CORP
Cenergy Corporation see Dominion Exploration & Production
Cenergy Exploration Co. see Dominion Exploration & Production
Cenergy Financial Corporation see Dominion Exploration & Production
Cenergy International Company see Dominion Exploration & Production
Cenergy Midwest Company see Dominion Exploration & Production
Cenergy Transmission Company see Dominion Exploration & Production
CENEX, INC.
Centex Oil & Gas, Inc. CONQUEST EXPLORATION CO.
Central Louisiana Energy Corp. 1982 EXXON MOBIL CORP.
Central Oil & Gas, Inc. ANADARKO E&P COMPANY, LP
Central-Del Rio Oils Ltd. PANCANADIAN PETROLEUM CO.
Centura Energy Corp. 1983 CASTLE ENERGY CORP.
Century Oil & Gas 1987 CHARTERHALL PLC
Century Production, Inc. 1986 HESS CORPORATION
CF Industries, Inc. 1987 * KELLEY OIL CORP.
Chalaco, Ltd. (Dissolved) KERR-MCGEE CORP
20. Lower Case—Past Contact UPPER CASE—CURRENT CONTACT
19
Chambers & Kennedy UNIMAR CORP.
Champlin Oil & Refining Co. 1964 ANADARKO E&P COMPANY, LP
Champlin Petroleum Co. 1987 ANADARKO E&P COMPANY, LP
Chanslor Western Oil/Dvlpmt. Co. 1978 DEVON ENERGY
Chanslor-Canfield 1953 DEVON ENERGY
Chaparral Energy Development Corp. 1980 NUGGET OIL CORP.
CHAPARRAL ENERGY, LLC
Chaparral Oil Inc. CHAPARRAL ENERGY INC.
Chapman Energy Inc. CODA ENERGY CORP.
CHAPMAN RESOURCES
CHARLIE BARTON
Charter Exploration & Production 1977 CRYSTAL OIL CO.
CHARTERHALL PLC
Chase Petroleum Co 1968 APACHE CORP.
Cheniere Petroleum Corp. DEVON ENERGY
Cherokee Resources, Inc. PETROHAWK PROPERTIES, LP
Cherryville Corp. TEXAS INTERNATIONAL PETROLEUM
Chesapeake BNR Corp CHESAPEAKE EXPLORATION LLC
Chesapeake Cratex Corp CHESAPEAKE EXPLORATION LLC
Chesapeake Cratex LLC CHESAPEAKE EXPLORATION LLC
CHESAPEAKE ENERGY CORP.
Chesapeake ENO Acquisitions LLC CHESAPEAKE EXPLORATION LLC
Chesapeake EP LLC CHESAPEAKE EXPLORATION LLC
Chesapeake Focus LLC CHESAPEAKE EXPLORATION LLC
Chesapeake GH Corp CHESAPEAKE EXPLORATION LLC
Chesapeake Investments ARCADIA RESOURCES, L.P.
Chesapeake KNAN Acquisitions LLC CHESAPEAKE EXPLORATION LLC
Chesapeake LNG LP CHESAPEAKE EXPLORATION LLC
Chesapeake Mid- Continent Corp. CHESAPEAKE EXPLORATION LLC
Chesapeake Mountain Front LLC CHESAPEAKE EXPLORATION LLC
Chesapeake ORC, LLC CHESAPEAKE EXPLORATION LLC
Chesapeake PEP Corp. CHESAPEAKE EXPLORATION LLC
Chesapeake PRH Corp CHESAPEAKE EXPLORATION LLC
Chesapeake Permian LP CHESAPEAKE EXPLORATION LLC
Chesapeake RS Corp. CHESAPEAKE EXPLORATION LLC
Chesapeake Sigma LP CHESAPEAKE EXPLORATION LLC
Chesapeake Zapata LP CHESAPEAKE EXPLORATION LLC
CHK Cratex LLC CHESAPEAKE EXPLORATION LLC
CHK Louisiana LLC CHESAPEAKE EXPLORATION LLC
Chessie Resources, Inc. Minerals Only ENERGEN RESOURCES CORP.
Chevron Midcontinent CHEVRON CORP
21. Lower Case—Past Contact UPPER CASE—CURRENT CONTACT
20
Chevron Production Company CHEVRON CORP
Chevron USA CHEVRON CORP
Chevron-Texaco CHEVRON CORP
Chicago Corp. 1954 ANADARKO E&P COMPANY, LP
Chief Holdings, LLC DEVON ENERGY
Chief Oil & Gas LLC DEVON ENERGY
Chieftain Petroleum, Inc. 1986 UMC PETROLEUM CORP.
Chinook Resources BRIDGE OIL COMPANY, L.P.
Chipola Oil Corp. 1982 TERRAPET ENERGY CORP.
Chisos Trading Co. KAISER-FRANCIS OIL CO.
Christie, Mitchell & Mitchell Co. DEVON ENERGY
CIG Exploration, Inc. EL PASO E&P COMPANY, LP
CIMA Energy, Ltd. CIMA ENERGY, LP
Cimarron Operating Company RANGE RESOURCES - APPALACHIA,
CINCO GENERAL PARTNERSHIP
Circle X Oil and Gas LLC CHESAPEAKE EXPLORATION LLC
Cisneros Oil Corporation 1967 TOTAL E&P USA INC
Citation 1987 Investment LP CITATION 2002 INVESTMENT LP
Citation 1989 Investment LP CITATION 2002 INVESTMENT LP
Citation 1998 Investment LP CITATION 2002 INVESTMENT LP
CITATION 2002 INVESTMENT LP
Citation 1994 Investment LP CITATION 2002 INVESMENT LP
Citgo Petroleum Corp. Pre 9/83 OCCIDENTAL OIL & GAS CORPORATION
CITGO PETROLEUM CORPORATION
Cities Service Oil & Gas Corp. OCCIDENTAL OIL & GAS CORPORATION
Cities Services Oil Co. 1982 OCCIDENTAL OIL & GAS CORPORATION
Citrus County Land Bureau, Inc. HESS CORPORATION
Clark Oil & Refining Co. APEX OIL CO.
Clark Resources, Inc. 1989 BRG PRODUCTION CO.
Clarkland Royalty, Inc. CONOCOPHILLIPS
Clarkland, Inc. CONOCOPHILLIPS
Classic Oil & Gas, Inc. XTO ENERGY INC.
Classic Petroleum, Inc. XTO ENERGY INC.
Clayton Williams Energy, Inc. (CWI) NBL PERMIAN LLC
Clusde R Lambe KOCH EXPLORATION COMPANY, LLC
Clephane Oil Co. 1912 Shell Oil Co.
Cliffwood Energy Co. 1988 CHEVRON
CLINTON GAS SYSTEMS, INC.
Clinton Oil Co. 1976 BHP PETROLEUM (AMERICAS) INC.
Clymore Petroleum Corp. 1968 TESORO PETROLEUM CORP.
CMS ENEGY, INC.
22. Lower Case—Past Contact UPPER CASE—CURRENT CONTACT
21
CMS Nomeco Oil & Gas NEWFIELD EXPL MID-CONTINENT INC.
CNG Producing Co. see Dominion Exploration & Production
COAL CREEK EXPLORATION COMPANY managed by AVIVA
Coastal Derby Refining Company EL PASO MARKETING, INC.
Coastal Oil & Gas Corp. EL PASO E&P COMPANY, LP
Coastal Oil & Gas Gathering, LP EL PASO E&P COMPANY, LP
Coastal Oil & Gas USA, LP EL PASO E&P COMPANY, LP
Coastal Oil Co. 1958 CONOCOPHILLIPS
Coastal Production Co. EOG RESOURCES, INC.
Coastal Refining and Marketing EL PASO MARKETING
Coastal States Crude Gathering Co. EL PASO MARKETING
Coastal States Gas Production Co. EL PASO E&P CO., LP
Coastal States Trading, Inc. EL PASO MARKETING
Cobo & Co, Inc. TOKLAN OIL AND GAS CORPORATION
Coda Energy EOG RESOURCES, INC.
CoEnergy Anadarko, Inc. SUNDOWN ENERGY INC.
CoEnergy Central Expl. Inc. SUNDOWN ENERGY INC.
CoEnergy Enhanced Prod. Co. SUNDOWN ENERGY INC.
CoEnergy Midcontinent, Inc. SUNDOWN ENERGY INC.
CoEnergy Operating Co. SUNDOWN ENERGY INC.
CoEnergy Ventures, Inc. SUNDOWN ENERGY INC.
COFFEYVILLE RESOURCES, LLC
Coline Gasoline Corp. 1977 DEVON ENERGY
Coline Oil Corp. 1977 DEVON ENERGY
Colonial Oil Productions Co. 1966 TOTAL E&P USA INC
Colorado Oil & Gas Corp. 1973 EL PASO E&P CO., LP
Colorado Oil Co., Inc. EL PASO E&P CO., LP
Colorado Western Exploration, Inc. 1958 CONSILIDATED OIL & GAS, INC.
Colt Intermodal Inc. CONOCOPHILLIPS
Coltexo Corp. OCCIDENTAL OIL & GAS CORPORATION
Columbia Gas Development Corp. HUNT ENERGY (AEC), INC.
COLUMBIA NATURAL RESOURCES LLC
Columbian Carbon Co. 1963 OCCIDENTAL OIL & GAS CORPORATION
COLUMBINE I LP managed by AVIVA
COLUMBINE II LP managed by AVIVA
Cometra Oil & Gas Co. RANGE RESOURCES INC.
Commodore Estates, Inc. GREAT LAKES ENERGY PARTNERS LLC
Common Parent Corporation CONOCOPHILLIPS
Commonwealth Oil Co. 1961 JUPITER CORP.
Commonwealth Petroleum Co. 1922 Shell Oil Co.
Comprehensive Resources Corp. 1984 DEVON ENERGY
23. Lower Case—Past Contact UPPER CASE—CURRENT CONTACT
22
COMSTOCK RESOURCES, INC.
Concho Oil Co. CHESAPEAKE ORC, LLC
CONDER
Conoco, Inc. CONOCOPHILLIPS
Conquest Associates see Dominion Exploration & Production
Conquest Associates 1983 see Dominion Exploration & Production
Conquest Associates 1985 see Dominion Exploration & Production
Conquest Associates II see Dominion Exploration & Production
Conquest Associates-I Limited see Dominion Exploration & Production
Conquest Associates-II Limited see Dominion Exploration & Production
Conquest Exploration Company see Dominion Exploration & Production
Conquest Texas, Inc. see Dominion Exploration & Production
Conquest Transmission Company see Dominion Exploration & Production
Conquest/N 1982 Limited Partnership see Dominion Exploration & Production
Conquest/N 1985 Limited Partnership see Dominion Exploration & Production
Conquest/N Matagorda LP see Dominion Exploration & Production
Conquest/NM Matagorda LP see Dominion Exploration & Production
Conquest/NWM 1982 Texas Oil & Gas LP see Dominion Exploration & Production
Conquest/NWM Texas Oil & Gas see Dominion Exploration & Production
Conquest/P 1982 Limited Partnership see Dominion Exploration & Production
Conquest/P 1985 Limited Partnership see Dominion Exploration & Production
Conquest/P Matagorda Limited Partnership see Dominion Exploration & Production
Consolidated Gas Supply Corp. see Dominion Exploration & Production
Consolidated Natural Gas see Dominion Exploration & Production
Consilidated Oil & Gas Inc HUGOTON ENERGY CORP.
Consolidated Oil Corp. 1943 BP AMERICA
Consolidated Oil/Gas Acquisition Co. 1990 CONSILIDATED OIL & GAS, INC.
Consolidated Production FREEPORT-MCMORAN ENERGY PTNRS
Consolidated Rimrock Oil Corp. 1958 CONSOLIDATED OIL & GAS, INC.
Continental Eastern Corp. CHEVRON CORP
Continental Oil Co. CONOCOPHILLIPS
Continental Resources Corp. CHAPMAN ENERGY INC.
Continental Western Corp. CHEVRON CORP U.S.A. INC.
CONVEST ENERGY CORP.
Cook & Hackett, ttorneys BENJAMIN F. HACKETT & ASSOCIATES
Coquina Oil FREEPORT-MCMORAN ENERGY PTNRS
Coquina Oil Corp. PRIMARY FUELS, INC.
Coquina Oil Corp. 1993 AMERICAN NATIONAL PETROLEUM CO.
Coral Reserves Natural Gas Income Fund CHESAPEAKE KNAN ACQUISITION, LLC
Cornet Oil * CONDER
Coronado Corp. 1941 BP AMERICA
24. Lower Case—Past Contact UPPER CASE—CURRENT CONTACT
23
Corpus Christi Oil & Gas Co. DALEN RESOURCES OIL & GAS CO.
CORTEX OPERATING CO.
Cortez Operating Co. ENCORE OPERATING, LP
Cosden Oil & Chemical Co. 1985 TOTAL E&P USA INC
Cosden Oil Co. 1932 CONOCOPHILLIPS
Cosden Petroleum Corp. 1963 TOTAL E&P USA INC
Cosden Pipe Line Company 1994 FINA PIPE LINE CO.
COSDEN, INC.
Coseka Resources (USA) Limited WAGNER & BROWN, LTD.
Cotton Petroleum 1986 APACHE CORP.
Cotton Petroleum Corp. 1987 MORAINE PRODUCTION LTD.
Coty LARIO OIL & GAS CO.
Covey Park COMSTOCK RESOURCES
Cow Gulch Oil Co. 1973 K.R.M. PETROLEUM CORP.
COX & PERKINS EXPLORATION, INC.
COX OIL & GAS, INC.
CPC Exploration Co. 1985 COX & PERKINS EXPLORATION, INC.
CRA Inc FARMLAND INDUSTRIES, INC.
CRA International, Ltd. GLOBAL NATURAL RESOURCES CORP.
Crainfill & Reynolds 1933 EXXON MOBIL CORP.
Cravens Oil Co. XTO ENERGY INC.
CREDO PETROLEUM CORP.
CRESCENT OIL & GAS CORP.
Crescent Petroleum Corp. CRESCENT OIL & GAS CORP.
Crescent Royalty Co. 1931 CONOCOPHILLIPS
Creslenn Oil Co. 1979 SOUTHWEST ROYALTIES, INC. U.S. OIL
Crestmont Oil & Gas Co. 1981 OCCIDENTAL OIL & GAS CORPORATION
Crimson Energy J-M HUBER CORP.
CRIMSON EXPLORATION INC
Cross Bell Company HAMPTON RESOURCES
Cross Timbers Oil Company XTO ENERGY INC.
Cross Timbers Oil Company LP XTO ENERGY INC.
Cross Timbers Operating Co. XTO ENERGY INC.
Cross Timbers Production XTO ENERGY INC.
Crow Creek Energy, LLC PENN VIRGINIA CORP.
Crow Creek Energy II, LLC EAGLE ROCK MID-CONTINENT ASSET,
CROWN CENTRAL PETROLEUM CORP.
Crown Zellerbach (Energy Div.) 1985 CAVENHAM ENERGY RESOURCES
Crusader Energy Corporation ENCORE OPERATING, LP
CRYSTAL OIL CO.
CSX Oil & Gas Corp. 1988 ENERGEN RESOURCES CORP.
25. Lower Case—Past Contact UPPER CASE—CURRENT CONTACT
24
Cudahy Refining Co. BP AMERICA
Cuervo Resources, Inc. CUERVO, INC.
CUERVO, INC.
Cullen BURLINGTON RESOURCES
Cummins & Walker Oil Co., Inc. DALEN RESOURCES OIL & GAS CO.
CXY Energy Inc. NEXEN PETROLEUM U.S.A. INC.
Cycle Oil & Gas Corp. FRONTIER ENERGY CORP.
Cyclops Corp. 1987 * ROSCOE GAS & OIL CO.
Cypher Energy Corp. ALLIANCE EXPLORATION CORP.
D.C. BINTLIFF
D & D Oil and Gas LLC CHESAPEAKE EXPLORATION LLC
D.D.I., INC 1989
Dabb Energy Company DIAMOND S ENERGY COMPANY
Dabros Properties 1988 JN EXPLORATION & PRODUCTION
DABROS PROPERTIES 1988
Dacresa ENERGEN RESOURCES CORP.
Dakota Resources, Inc. 1983 VALEX PETROLEUM, INC.
Dalco Oil Co. 1976 PACIFIC ENTERPRISES OIL CO. (USA)
Dalen Resources Oil & Gas Co. NEWFIELD EXPLORATION GULF COAST
Dallas Oil & Minerals Inc. RANGE PROD. CO.
Dallas Sunbelt Energy, Inc. 1982 CHAPMAN ENERGY, INC.
Dal-Oil Inc. GREAT LAKE ENERGY PARTNERS LLC
Damson Oil Corp PIONEER NATURAL RESOURCES USA,
Danciger Oil & Refining Co. 1948 BP AMERICA
Daniel Oil Co. PARTNERS OIL CO.
DANOV CORPORATION 1988
Darby Petroleum Co. 1944 SUNOCO PARTNERS MKTG & TERM-
DARSEY OIL CO.
Davis Oil Co. DAVIS PETROLEUM CORP.
Davis Oil Co. (Davis Petroleum Corp.) QUINOCO CO. 1988
Davis Oil Co. 1981 PRESDIO OIL CO.
Dawn Energy Co. 1986 ONEOK EXPLORATION CO.
Dean Brothers BP AMERICA
Deca Energy Corp. 1985 K.R.M. PETROLEUM CORP.
Deep Gas Exploration Inc. 1985 RATEX RESOURCES INC.
Deep Rock Oil Co. 1954 * CONOCOPHILLIPS
Deep Rock Oil Corp. 1955 KERR-MCGEE CORP
DEKALB ENERGY CO.
DeKalb Petroleum Co. 7/92 (Depco) DOMINION OKLA TEXAS EXPL & PROD.
Del Mar Petroleum, Inc. SAMSON PROD SERVICES COMPANY
Del mar Production CONOCOPHILLIPS
26. Lower Case—Past Contact UPPER CASE—CURRENT CONTACT
25
Del Ray Petrouelm Co. 1952 see Tenneco Inc
Delhi Oil Corp. 1955 see Tenneco Inc
Delhi-Taylor Oil Corp. 1964 see Tenneco Inc
Delta Drilling Company KERR-MCGEE CORP
Delta Drilling USA, LP NABORS DRILLING USA, LP
Deltaus Corp. NABORS DRILLING USA, LP
Delwood 1964 APACHE CORP.
Deminex U.S. Oil Co SOUTHWEST ROYALTIES, INC.
DENOVO OIL & GAS CO.
Depco, Inc. DEKALB ENERGY CO.
Derby Refining Company EL PASO MARKETING, INC.
DERRICK PETROLEUM INC.
Desert American Agency, Inc. CONOCOPHILLIPS
Desert Magic Inc. CONOCOPHILLIPS
Desert Royalty Corp (1992) MARIENFELD ROYALTY CORP.
Destry Gas Co., Ltd. PETER PAUL PETROLEUM CO., DEN.
Devex Resources KERR-MCGEE CORP
DEVON ENERGY CORP.
DEVON ENERGY PROD. CO, LP
Devon Louisiana Corp DEVON ENERGY PROD. CO, LP
Devon SFS Operating Inc. DEVON ENERGY CORP.
Devonian Gas & Oil Co. CHEVRON CORP
Devx Energy, Inc. COMSTOCK RESOURCES
DI INDUSTRIES INC.
Diablo Oil Co. 1987 WICHITA RIVER OIL CO.
Daimex Co. ANADARKO E&P COMPANY, LP
Diamond Alkali MAXUS EXPLORATION
Diamond Shamrock Corp. 1987 MAXUS EXPLORATION
Diamond Shamrock Offshore Partners LP CONOCOPHILLIPS
Dickson Oil Company 1949 KAISER-FRANCIS OIL CO.
Dietrich Resources Corp. 1987 SANDRIDGE ENERGY, INC.
Discovery Oil, Ltd. 1986 SEAHAWK OIL INTERNATIONAL, INC.
Diversa, Inc. MAYNARD OIL COMPANY
Diverse Energy Investments FORTUNE NATURAL RESOURCES COR-
Diverse GP FORTUNE NATURAL RESOURCES COR-
Diverse GP III FORTUNE NATURAL RESOURCES COR-
Diverse Operating Company DIVERSE ENERGY INVESTMENTS
DIVERSIFIED ENERGIES, INC.
Dixel Resources, Inc. ANADARKO E&P COMPANY, LP
Dixie Oil Co. 1919 BP AMERICA
DKM Energy Inc. INTERCOAST OIL & GAS CO.
27. Lower Case—Past Contact UPPER CASE—CURRENT CONTACT
26
DKM Offshore Energy, Inc. MEDALLION CALIFORNIA PROPERTIES
DKM Resources, Inc. KCS RESOURCES, INC.
Dodson Prod., LLC PENT ENERGY, LLC
Dolphin Energy LLC NEWFIELD EXPLORATION MID-
Domain Energy Corp RANGE ENERGY CORP.
Domain Energy Finance Corp RANGE ENERGY FINANCE CORP.
Domain Energy Guarantor Corp RANGE ENERGY GUARANTOR CORP.
Domain Energy Prod. Co. RANGE ENERGY VENTURE CORP.
Domain Energy Ventures Corp. RANGE ENERGY VENTURE CORP.
Dome Petr. Corp. (U.S. Assets) 1983 * CHEVRON CORP
Dome Petroleum Ltd. 1988 AMOCO CANADA PETRO CO. LTD
Dominion (offshore) ENI PETROLEUM CO INC.
Dominion Black Warrior Basin, Inc. HIGHMOUNT BLACK WARRIOR BASIN,
Dominion Exploration & Production HIGHMOUNT EXPL AND PROD LLC
Dominion Exploration & Production, Michigan LINN ENERGY, LLC
Dominion Midwest Energy, Inc. HIGHMOUNT EXPL & PROD MICHIGAN
Dominion Midwest Energy, Inc. XTO ENERGY, INC. (all but Michigan)
Dominion Offshore TX & LA ENI PETROLEUM CO INC.
Dominion Oklahoma Texas Exploration & LINN ENERGY, LLC
Dominion Permian, TX HIGHMOUNT EXP & PROD LLC
Dominion Resources, Inc. CONSOL ENERGY INC.
Domionion Rocky Mountian XTO ENERGY
DON FRANTZEN
Don L. Mount BOUNTY PRODUCTION CO.
Donald Slawson Oil Producer SLAWSON EXPLORATION CO., INC.
Dorchester Exploration, Inc. 1984 DAMSON OIL CORP.
Dorfman Production W.H. HEISLER, JR.
Dorothy Corp. 1984 DEVON ENERGY
Dorrance FRAZIER
Double Eagle Exploration, Inc. MKI ENERGY, INC.
DOW CHEMICAL CO.
Dowdle Oil Corp. 1981 WESTERN NATURAL GAS CO.
DPI-GP, Inc. CONOCOPHILLIPS
Drel Petroleum 1979 ORIGINALA PETROLEUM CORP.
DREW CORNELL, INC.
Dreyer Bros., Inc. CONOCOPHILLIPS
Drillers, Inc. 1985 DI INDUSTRIES, INC.
Drillexco 1962 BP AMERICA
Drilling & Exploration Co. 1962 BP AMERICA
DUKE ENERGY FIELD SERVICES
Duke Energy T & T Co. TEPPCO CRUDE OIL LP
28. Lower Case—Past Contact UPPER CASE—CURRENT CONTACT
27
Dundee Petroleum Co. 1915 Shell Oil Co.
Duran Energy Corp. 1984 WENTEX INTERNATIONAL, INC.
DX Oil Co. 1962 SUNOCO PARTNERS MKTG & TERM-
Dyco Petroleum Corp. 1985 DIVERSIFIED ENERGIES, INC.
Dynamar Energy Inc. 1986 KERR-MCGEE CORP
Dynamic of Texas, Inc. 1979 CONOCOPHILLIPS
Dynasty Oil & Minerals, Inc. 1984 RANGE PRODUCTION CO. MINERALS,
E.E. Fogelson 1964 Shell Oil Co.
E.E. NEARBURG
E.H. McDermott J.D. WRATHER, JR.
E.L. Hilliard II Interests 1988 COMSTOCK RESOURCES, INC.
E.L. Hilliard III Interests 1988 COMSTOCK RESOURCES, INC.
E.G. Operating SUNDOWN ENERGY, INC.
Eagle Energy Inc. HIGHMOUNT EXPLORATION & PRODUC-
EAGLE EXPLORATION CO.
EAGLE OIL & GAS CO.
Eagle Oil Co. 1978 see Dominion Exploration & Production
Eagle Rock Mid-Continent Asset, LLC EAGLE ROCK ENERGY PARTNERS, L.P.
Earlsboro Oil & Gas 12/90 DOMINION OKLA TEXAS EXPLOR. &
Earnest H. Lambert GLOBAL NATURAL RESOURCES CORP.
Earth Resources Co. 1981 see Dominion Exploration & Production
Eason Oil Co. 1985 EL PASO E&P COMPANY, LP
East Resources Inc. (West Virginia NOT TALISMAN ENERGY USA INC
East Timbers Oil, LP XTO ENERGY, INC.
Eastern Petroleum Co. GREAT LAKES ENERGY PARTNERS LLC
Eastland Oil BP AMERICA
Eastwash Corp. GREAT LAKES ENERGY PARTNERS LLC
Easy Wind Oil Co. 1986 DERRICK PETROLEUM INC.
Echo Oil Corp. 1979 FOREST OIL PERMIAN CORP.
ECOS Corporation CONOCOPHILLIPS
Edson Petroleum Co. 1970 OCCIDENTAL OIL & GAS CORPORATION
Edward P. Bass
Edwards & Leach Oil Co. 1984 SANDRIDGE ENERGY, INC.
Edwin L. & Berry R. Cox COX OIL & GAS INC.
EEX Corp. NEWFIELD EXPLORATION GULF COAST
EGRET ENERGY CORP.
El Can Petroleum Company CONOCOPHILLIPS
El Paso Company CONOCOPHILLIPS (through Burlington
EL PASO E&P CO., LP
El Paso Exploration Co. 1985 CONOCOPHILLIPS
El Paso Frontera Corporation CONOCOPHILLIPS
29. Lower Case—Past Contact UPPER CASE—CURRENT CONTACT
28
El Paso Gas Marketing Co. CONOCOPHILLIPS
El Paso Gas Transportation Company CONOCOPHILLIPS
El Paso Hydrocarbons Co. CONOCOPHILLIPS
El Paso Hydorcarbons Gas Processing Co. CONOCOPHILLIPS
El Paso Hydrocarbons Pipeline Co. CONOCOPHILLIPS
El Paso Hydrocarbons Service Co. CONOCOPHILLIPS
El Paso Hydrocarbons Transportation Co. CONOCOPHILLIPS
El Paso Natural Gas Clearinghouse Co. CONOCOPHILLIPS
El Paso Natural Gas Company CONOCOPHILLIPS
El Paso Production Company CONOCOPHILLIPS
El Paso Production Oil & Gas USA, LP EL PASO E&P COMPANY, LP
El Paso Products Company CONOCOPHILLIPS
El Paso Storage Company CONOCOPHILLIPS
El Rey Petroleum, Inc. JOHN P. MCHAUGHTON
El Toro Exploration ROLAND LIBERDA
Eland Energy, Inc. SUNDOWN ENERGY INC.
Eldorado Refining Company 1968 AMERICAN PETROFINA PIPELINE CO.
Elf Acquitaine Inc. TOTAL E&P USA INC
Elf Exploration, Inc. TOTAL E&P USA INC
Elk Basin Petroleum Co. 1928 CONOCOPHILLIPS
Elk River Resources SUNCO PARTNERS MKTG & TERMINALS
Elysium Energy, LLC NOBLE ENERGY, INC
EMCOR PETROLEUM CO.
Emejota Engineering Corporation TOTAL E&P USA INC
Empire Energy 1980 BP AMERICA
Empire Oil Company OCCIDENTAL OIL & GAS CORPORATION
Empire Southern Production Co. ANDREWS PRODUCTION CO.
Encana Corp OVINTIV INC.
ENCINO ENERGY & DEVELOPMENT CORP.
ENCORE OPERATING, LP
ENDEAVOR NATURAL GAS, LP
ENERGEN RESOURCES
Energen Resources MAQ, Inc. ENERGEN RESOURCES CORP.
Energy Corp. of America, Inc. EQUITABLE PETROLEUM CORP.
ENERGY DEVELOPMENT CORP.
ENERGY DEVELOPMENT PARTNERS LTD.
Energy Methods Corp. EMCOR PETROLEUM CO.
Energy Oil & Gas Corp. 1978 OIL CITY PETROLEUM, INC.
ENERGY OIL INC.
Energy Oil Inc. of Colorado SNYDER OIL PARTNERS
Energy Reserves Group Inc. 1985 BHP PETROLEUM (AMERICAS) INC.
30. Lower Case—Past Contact UPPER CASE—CURRENT CONTACT
29
Energy Resources Corp. 1984 * RIO PETROLEUM INC.
ENERGY SOURCES INC.
Enertec Corp. RIO PETROLEUM INC.
ENEX RESOURCES CORP.
Enfield Energy 81-A DOMINION EXPL & PROD INC.
Enfield Energy 84-A see Dominion Exploration & Production
ENGELKE
Enhanced Energy Resources ANADARKO E&P COMPANY, LP
Enopco, Inc. 1989 UMC PETROLEUM CORP.
Enpal, Inc. 1989 UMC PETROLEUM CORP.
EnRe, LP (Texas Properties) J-W OPERATING CO.
Enron Corp., E&P Division EOG RESOURCES, INC.
Enron Exploration Company EOG RESOURCES, INC.
Enron Oil & Gas Co. EOG RESOURCES, INC.
Enron Oil & Gas Marketing, Inc. EOG RESOURCES, INC.
Enron Producing Company EOG RESOURCES, INC.
Enserch Corporation NEWFIELD EXPLORATION GULF COAST
Enserch Energy, inc. NEWFIELD EXPLORATION GULF COAST
Enserch Exploration, inc. NEWFIELD EXPLORATION GULF COAST
Enserch Oil Company NEWFIELD EXPLORATION GULF COAST
Enserch Sacroc, Inc. NEWFIELD EXPLORATION GULF COAST
Ensign Oil Co. KERR-MCGEE CORP
Ensource, Inc 1989 UMC PETROLEUM CORP.
Enstar Petroleum Corp. 1985 UNIMAR CORP.
Entech Gas Ventures ENCANA ENERGY
Enterprises Energy Corp. 1986 BELDEN & BLAKE ENERGY CO.
Enterprise Gas Co. ENTERPRISE RESOURCES INC.
ENTERPRISE RESOURCES INC.
Entex Energy Operations Ltd. 1987 UMC PETROLEUM CORP.
Entex Petroleum Inc. 1987 UMC PETROLEUM CORP.
EOG RESOURCES, INC.
EOTT Company PLAINS ALL AMERICAN PIPELINE, LP
EP Operating Ltd. Partnership NEWFIELD EXPLORATION GULF COAST
EPCO, Inc. ENTERPRISE PRODUCTS COMPANY
EPX Co. CONOCOPHILLIPS
Equatorial Energy, Inc. RESOLUTE ENERGY, INC.
Equitable Gas Co. 1985 EQUITABLE RESOURCES INC.
EQUITABLE PETROLEUM CORP.
EQUITBLE RESOURCES INC.
EQUITY OIL CO.
Equiva Trading Co. SHELL TRADING (U.S.) CO,
31. Lower Case—Past Contact UPPER CASE—CURRENT CONTACT
30
ESKEY INC.
Espero Energy SOUTHWEST ROYALTIES INC.
Essex Exploration, Inc. 1983 see Dominion Exploration & Production
Ethyl Oil & Gas Corp. 1989 TREDEGAR OIL & GAS CORP.
Ethyl Petroleum Corp. 1989 TREDEGAR PETROLEUM CORP.
Ethyl Properties, Inc 1989 TREDEGAR PROPERTIES, INC.
EuroTex Resources, Inc. KERRCO INC.
EVERGREEN OPERATING CORP.
Evergreen Resources, Inc. PIONEER NATURAL RESOURCES USA,
Excalibur Ventures Inc. 1987 BALBOA EXPLORATION CO.
Exchange Oil & Gas Corp. 1985 TRANSCO EXPLORATION PARTNERS
Exchange Oil & Gas Corp. 1986 * TOTAL E&P USA INC
Exeter Exploration 1986 APACHE CORP.
Exeter Exploration Co. MCN EXPLORATION
Ex-Mission Ranches, Inc. CONOCOPHILLIPS
Exploration Co. of Louisiana Inc. 1987 * FINA OIL & CHEMICAL CO.
EXXON MOBIL CORP.
F.E. HARPER
F.K. Johnson ANADARKO PETROLEUM CORPORA-
F.P. Kendall Oil Co. 1958 CONOCOPHILLIPS
F.T. JOHNSON, JR.
F. W. Merrick, Inc. 1943 CONOCOPHILLIPS
Fabco Oil Co., Inc. (Merger) IMPERIAL OIL COMPANY
Fadsin Production, Inc. 1984 DEVON ENERGY
Fair Oil Company 1975* TOTAL E&P USA INC
Falcon Seaboard Inc. 1979 MAXUS ENERGY CORP.
Fargo Oils Ltd. CHEVRON CORP
FARMERS OIL COMPANY
Farmer's Union Central Exchng, Inc 12/93 CENEX, INC.
Farmland Industries, Inc. COFFEYVILLE RESOURCES, LLC
Faulkner Corporation CHESAPEAKE EXPLORATION LLC
FCD Oil Corp. 11/86 DOMINION EXPL & PROD INC.
FEC offshore Inventory Company EOG RESOURCES, INC.
Federated Energy 1985 FEDERATED NAT RESOURCES CORP.
FEDERATED NATURAL RESOURCES
FELL & WOLFE OIL CO.
Felmont Oil & Gas Co. 1990 TORCH OIL & GAS CO.
FGL, Inc. SUNDOWN ENERGY, INC.
FIDELITY OIL CO.
Fifteen Oil Co. 1960 see Tenneco Inc
Filon Exploration Co. 1979 see Dominion Exploration & Production
32. Lower Case—Past Contact UPPER CASE—CURRENT CONTACT
31
Fina Exploration, Inc. 1989 TOTAL E&P USA INC
Fina LaTerre, Inc. TOTAL E&P USA INC
Fina Oil & Chemical Co. TOTAL E&P USA INC
Fina Oil and Gas, Inc. 1988 TOTAL E&P USA INC
Fina Supply, Inc. 1985 TOTAL E&P USA INC
Fina, Inc. TOTAL E&P USA INC
Finadel Exploration, Inc. 1987 TOTAL E&P USA INC
Finadel Pipe Line Company 1984 TOTAL E&P USA INC
Finadel, Incorperated 1982 TOTAL E&P USA INC
Financial Technology Inc. 1975 TEXON ENERGY CORP.
FINATERRE, INC.
Fine Line Diversified Ventures, Inc. FINE LINE O&G TX (WY)(LA)(MULTI-
Fin-Oil, Inc. 1988 TOTAL E&P USA INC
FIN-TEX PIPELINE COMPANY
FIRST ENERGY CORP.
First Mississippi Corp. FIRST ENERGY CORP.
First Permian, LP ENERGEN RESOURCES CORP.
FIVE STAR ROYALTY PARTNERS, LTD. managed by AVIVA
Flag Oil Corp. 1970 KERR-MCGEE CORP
Flag-Redfern Oil Co. 1988 KERR-MCGEE CORP
Flagstone Petroleum Corp. MAP RESOURCES, INC.
Florida Exploration Co. 1984 EOG RESOURCES, INC.
Florida Gas Exploration Co. 1979 EOG RESOURCES, INC.
Floyd Karsten CHEVRON CORP
Fluor Oil & Gas Corp. PRIMARY FUELS, INC.
FMP Operating Co. A Ltd. Partnership 1990 FREEPORT-MCMORAN OIL & GAS
Focus Energy LLC CHESAPEAKE EXPLORATION LLC
Fohs Oil Co. 1946 BP AMERICA
FORCHALL OIL
Forest Oil Co., Inc. 1924 FOREST OIL CORP.
Forest Oil Corporation SABINE OIL & GAS CORPORATION
Forest Oil Corp. 1974 * SUNCO PARTNERS MKTG & TERMINALS
FOREST OIL PERMAIN CORP.
Fortuna Energy TALISMAN ENERGY USA INC
Fountain Oil & Gas Inc. WICHITA RIVER OIL CO.
Four Queens Petroleum Corp. FELL & WOLF OIL CO.
FP, Inc RANGE RESOURCES - APPALACHIA,
FPCO Oil & Gas Co. 1987 FREEPORT-MCMORAN OIL & GAS
Franco Petroleum Co. 1913 BP AMERICA
Franco Western CONOCOPHILLIPS
Franco Wyoming Oil CONOCOPHILLIPS
33. Lower Case—Past Contact UPPER CASE—CURRENT CONTACT
32
Frankel Oil Co. FRANKEL OIL & GAS CO.
Frankfort Oil Co. SUNCO PARTNERS MKTG & TERMINALS
Frantz Corp. 1928 CONOCOPHILLIPS
FRAZIER
Fred Olson Inc. VOLVO PETROLEUM, INC.
Freedom Energy, Inc. SEDNA ENERGY, INC.
Freeport Oil Co. FREEPORT-MCMORAN INC.
Freeport-McMoRan Energy Partners 1990 FREEPORT-MCMORAN OIL & GAS
FREEPORT-MCMORAN OIL & GAS
FREMONT ENERGY CORP.
French Petroleum Corporation RANGE RESOURCES - APPALACHIA,
Frio Drilling Co. 1982 FRIO EXPLORATION CO.
FRIO EXPLORATION CO.
Frontier Acquisition Corp. RATEX RESOURCES INC.
FRONTIER ENERGY CORP.
FRONTIER OIL CORPORATION
Fuhrman Petroleum Corp. CONOCOPHILLIPS
Fullerton Oil 1953 EXXON MOBIL CORP.
Funk Exploration 1985 ANADARKO E&P COMPANY, LP
Future Acquisition 1995, Ltd. PETROHAWK PROPERTIES, LP
Future Energy Corp. PETROHAWK PROPERTIES, LP
Future Petroleum Corp. PETROHAWK PROPERTIES, LP
Future Resources 1981 BOGART OIL CO./LOUIS DREYFUS GAS
G.O.C. Corp. 1984 DEVON ENERGY
G.P. Livemore, Inc. GREAT WESTERN OIL
G/O INTERNATIONAL, INC.
Galaxy Oil Co. 1987* GLOBAL NATURAL RESOURCES CORP.
Galena-Signal Oil Co. 1928 CHEVRON CORP
Gamble-Daniel Operating Co. PARTNERS OIL CO.
Garfield County Exploration CHEVRON CORP U.S.A. INC.
Gas Anadarko, Ltd Successors, The AVEN GAS & OIL, INC.
Gas Producing Enterprices, Inc. BORDER EXPLORATION CO.
GASOLINE PRODUCTION CORP.
GBK LLC Holdings GBK Investments, LLC
GCO Minerals Company CHEVRON CORP.
Gem Oil, Inc. see Dominion Exploration & Production
Gemini Corp. 1986 ANADARKO E&P COMPANY, LP
General American Oil Co. 1983 CONOCOPHILLIPS
General Atlantic Energy Corp. UMC PETROLEUM CORP.
General Atlantic Gulf Coast Inc. UMC PETROLEUM CORP.
General Atlantic Resources Inc. UMC PETROLEUM CORP.
34. Lower Case—Past Contact UPPER CASE—CURRENT CONTACT
33
General Crude Oil Co. 1979 EXXON MOBIL CORPORATION
GENERAL ENERGY OPERATIONS LTD.
GENERAL ENERGY RESOURCES & TECH-
General Hydrocarbons Inc. 1985 ENCANA ENERGY
General LP Acquisition Inc. 1989 UMC PETROLEUM CORP.
General Petroleum Corp. 1926 EXXON MOBIL CORP.
General Producing Co. 1988 UMC PETROLEUM CORP.
General Production Co., Inc. 1983 ZAPATA EXPLORATION CO.
Genesis Petroleum Corp. 1986 * DEVON SFS OPERATING, INC.
GeoDynamics Oil & Gas, Inc. 1984 DEVON ENERGY
Geodyne Resources 1993 SAMSON PROD SERVICES COMPANY
GeoResources Management Corp. 1984 DEVON ENERGY
George J. Greer Trustee 1957 see Dominion Exploration & Production
George M. Shanor 1969 F.T. JOHNSON, JR.
George Mitchell & Associates DEVON ENERGY
George R. Brown, Oil & Gas Div. HIGHLAND RESOURCES, INC.
George Rodman Inc. 1984 CHAPMAN ENERGY INC.
Gerber Energy International 1987 GOLD KING CONSOLIDATED, INC.
Getty Oil Co. 1984 CHEVRON CORP.
GHK CO.
GHR Energy Corp. 1986 TRANSAMERICAN NATURAL GAS CORP.
GIBRALTAR EXPLORATION LTD.
Gilcrease Oil Co. VENUS OIL CO.
Gilliland Producting & Refining 1936 CONOCOPHILLIPS
Gillring Oil Co. RANGE PROD. CO.
Gillring Prod. Co. RANGE PROD. CO.
GKM Inc. 1987 PETROMARK RESOURCES CO.
Glacier Arizona Company CONOCOPHILLIPS
Glacier Park Boulder Company CONOCOPHILLIPS
Glacier Park Company CONOCOPHILLIPS
Glacier Park Denver Company CONOCOPHILLIPS
Glacier Park Gateway Company CONOCOPHILLIPS
Glacier Park Kent Industrial Co.
Glacier Park King Street Co. CONOCOPHILLIPS
Glacier Park Liquidating Co. CONOCOPHILLIPS
Glacier Park Naperville Co. CONOCOPHILLIPS
Glacier Park Northwest CONOCOPHILLIPS
Glacier Park Orillia Company 1 CONOCOPHILLIPS
Glacier Park Riverpoint Company CONOCOPHILLIPS
Glacier Park South Lander Co. CONOCOPHILLIPS
Glacier Park Wayzata Co. CONOCOPHILLIPS
35. Lower Case—Past Contact UPPER CASE—CURRENT CONTACT
34
Glacier Production Co. 1944 CHEVRON CORP
Gladstone Royalties LLC LINN ENERGY HOLDINGS, LLC
Glen McCarthy 1957 * EOG RESOURCES, INC.
GLOBAL NATURAL RESOURCES CORP.
Global Natural Resources Corp. of Maryland GLOBAL NATURAL RESOURCES CORP.
Global Natural Resources Corp. of Texas GLOBAL NATURAL RESOURCES CORP.
Global Nevada-Galaxy I Ltd. GLOBAL NATURAL RESOURCES CORP.
Global Nevada-Galaxy, Inc. GLOBAL NATURAL RESOURCES CORP.
Globe Oil & Refining Co. LARIO OIL & GAS CO.
Glorieta Oil Co. KERR-MCGEE CORP
Glover Hefner Kennedy Oil Co. GHK CO.
GOLD KING CONSOLIDATED, INC.
Golden Exploration & Production Corp. LONGVIEW PRODUCTION COMPANY
GoldKing Production Co. 1985 DENOVO OIL & GAS CO.
GOLIAD OPERATING COMPANY
Goliad Partners, LP GOLIAD O&G TX (WY)(LA)(MULTI-
Good Hope Refineries Inc. TRANSAMERICAN NATURAL GAS CORP.
Gordon Exploration Co. GOLIAD OPERATING COMPANY
Gordon Street, Inc. 1969 NORTH AMERICAN ROYALTIES, INC.
Gothic Energy Corp. CHESAPEAKE
Grace Petroleum Corp. 1993 SAMSON PROD SERVICES COMPANY
GRAHAM EXPLORATION
GRAHAM RESOURCES INC.
Graham Royalty Ltd. 11/93 DOMININ OKLA TEXAS EXPL & PROD,
Graham-McCormick Oil/Gas Ptnrshp 1988 * SNYDER OIL PARTNERS LP
Grand Banks Corp. RANGE PROD. CO.
Grand Isle Oil & Gas XTO ENERGY
Granite Falls Rock, Inc. CONOCOPHILLIPS
Granite Operating Co. APACHE CORP.
Graridge Crop. 1966 * TOTAL E&P USA INC
Grayhawk Energy Inc CHESAPEAKE EXPLORATION LLC
Grayhill Exploration Co. 1986 U.S. MINERALS EXPLORATION CO.
GREAT AMERICAN RESOURCES, INC.
Great Basins Petroleum Co. HESS CORPORATION
Great Expectations Oil Co. 1984 BP AMERICA
Great Lakes Energy Development, Inc. HIGHMOUNT EXPLORATION & PRODUC-
Great Lakes Energy Partners LLC RANGE RESOURCES - APPALACHIA,
Great Plains Development CONOCOPHILLIPS
GREAT RIVER OIL & GAS CORP.
Great Western Exploration GREAT WESTERN ONSHORE INC.
GREAT WESTERN OFFSHORE INC.
36. Lower Case—Past Contact UPPER CASE—CURRENT CONTACT
35
Great Western Oil & Gas Inc. 1989 GREAT WESTERN OFFSHORE INC.
Great Western Oil & Gas Inc. 1989 GREAT WESTERN ONSHORE INC.
Greenwood Holdings Inc. 10/93 HEADINGTON INVESTMENTS, INC.
Greystone Sligo Holsings Inc CHESAPEAKE EXPLORATION LLC
Greystone Petroleum LLC CHESAPEAKE EXPLORATION LLC
Griffin Petroleum Corp. 1982 KAISER-FRANCIS OIL CO.
GROVE OIL & GAS
GS Oil & Gas Co. 1985 see Dominion Exploration & Production
Guardian Oil Co. 1916 Shell Oil Co.
Guardian Oil Co. 1983 * PATRICK PETROLEUM CO,
GULF CANADA RESOURCES LTD.
Gulf Coast Acquisition Properties SUNDOWN ENERGY INC.
Gulf Energy & Minerals Co. CHEVRON CORP
Gulf Energy Development Corp. 1988 TEJAS GAS CORP.
GULF EXPLORATION CONSULTING, INC.
Gulf Oil Co. 1984 CHEVRON CORP.
Gulf Oil Exploration & Production Co. CHEVRON CORP.
Gulf States WESTERN
Gulf States Production Company YUMA EXPL AND PROD CO., INC.
Gulfstar Energy Inc. RANGE ENERGY CORP.
Gulftex Oil Company (Merger) IMPERIAL OIL COMPANY
Gunsmoke Enegy DIAMOND S ENERGY COMPANY
GW Petroleum Inc. 1989 GREAT WESTERN ONSHORE INC.
GWP Inc. 1989 GREAT WESTERN ONSHORE INC.
GWR Operating Co. 1989 GREAT WESTERN ONSHORE INC.
Gypsy Oil Co. CHEVRON CORP
H.B. Zachry GASOLINE PRODUCTION CORP.
H. Conquat LONGHORN OIL & GAS CO.
H.R. Smith WESTERN
H.W. Bass & Sons, Inc. GOLIAD OIL & GAS CO.
HADSON CORPORATION
Hadson Gas Co. APACHE CORP.
Hallwood Energy Co. CHEVRON CORP.
Hallwood Operating Co. CHEVRON CORP.
Hallwood Petroleum Inc. CHEVRON CORP.
Hamilton Bros. Oil Co. BHP PETROLEUM (AMERICAS) INC.
Hamilton Oil 1928 CONOCOPHILLIPS
Hampton Operating Company HAMPTON RESOURCES CORP.
Hampton Resources Corporation HAMPTON RESOURCES CORP.
Hancock il & Gas 1958 CONOCOPHILLIPS
Hanlon-Boyle Inc. 1962 see Dominion Exploration & Production
37. Lower Case—Past Contact UPPER CASE—CURRENT CONTACT
36
HANNA PETROLEUM CO.
Hanover Management Co. HESS CORPORATION
Hanover Pet Inc. 1987 Rocky Mtn Prop Only ENERGEN RESOURCES CORP.
Harbour Gas & Oil Inc. 1988 PETROHAWK PROPERTIES, LP
HarCor Exporation, Inc. (HCX) 1989 HARCOR ENERGY, INC.
HARDY OIL & GAS USA, INC.
HARKEN ENERGY CORP.
Harken Oil & Gas Inc. CABOT OIL & GAS CORP.
Harkins & Company (Acq.) ANADARKO E&P COMPANY, LP
Harp Ltd. 1986 TRITON MINERALS & ROYALTY, INC.
Harper Oil Co. MCN EXPLORATION
Harper Oil Co. 1986 APACHE CORP.
Harris-Bianchi-Hewitt H-B-H EXPLORATION CO.
Harrison J.S. ABERCROMBIE MINERAL CO.
Hartex-Anadarko Permian Basin Partnership EOG RESOURCES, INC.
HASSIE HUNT EXPLORATION COMPANY
Hastings Resources 1987 PETROHAWK PROPERTIES, LP
Hathaway Co. PYRAMID OIL CO.
Hawkins & Co. ANADARKO E&P COMPANY, LP
Hawthorne Oil & Gas Corp. 1988 AMERICAN NATIONAL PETROLEUM CO.
H-B-H EXPLORATION CO.
HCG ENERGY CORP.
HCW Inc. 1985 NRM ENERGY LIMITED PARTNERSHIP
HCW Oil & Gas Co. NRM ENERGY LIMITED PARTNERSHIP
HEADINGTON INVESTMENTS, INC.
Healdton Oil & Gas Co. 1929 EL PASO E&P COMPANY, LP
HEC La Plata, LLC CHEVRON CORP
HEC Peru, LLC CHEVRON CORP
HEC Petroleum, Inc. CHEVRON CORP
Hef-Lin Energy L L & B COMPANIES
HelmericH & Payne, Inc. CIMAREX ENERGY CO.
Helmick Oil Co. 1912 Shell Oil Co.
Hemingway, Bartell & Associates BARTELL EXPLORATION
Henderson Petroleum Corp. 1986 ZG ENERGY CORP.
Henry Energy Corp. 1987 KIMCO ENERGY CORP.
Henry Equity LLC LINN ENERGY HOLDINGS, LLC
Henry Savings LP LINN ENERGY HOLDINGS, LLC
Henry Savings Management LLC LINN ENERGY HOLDINGS, LLC
HEP OIL CO LTD SILVER CREEK RESOURCES, LLC
HEP OPERATING PARTNERS, L.P.
HEP Partners, LP CHEVRON CORP
38. Lower Case—Past Contact UPPER CASE—CURRENT CONTACT
37
HEP Pure Acquisitions, LLC CHEVRON CORP
HEP San Juan, LLC CHEVRON CORP
Heritage Glacier Park Company CONOCOPHILLIPS
Heritage Resources CO, LLC HIGHMOUNT EXPLORATION & PRODUC-
Herman G. Kaiser KAISER-FRANCIS OIL CO.
Hershy Oil Corp. (US Properties) see Dominion Exploration & Production
HESS CORPORATION
Hess Oil & Chemical 1969 HESS CORPORATION
Hexagon Oil & Gas, Inc. DABB ENERGY CO.
Heyser & Heard EXXON MOBIL CORP. L.P.
Hiawatha Oil & Gas Corp. 1987 * CASTLE ENERGY CORP.
Hiawatha Oil Co., Inc. 1983 PLAINS RESOURCES, INC.
Hickory Creek Oil Co. 1984 HANNA PETROLEUM CO.
Hickory Timbers Oil LP XTO ENERGY INC.
Hiland Energy Partners, LLC HILAND PARTNERS HOLDINGS LLC
Hiland Operating, LLC HILAND PARTNERS HOLDINGS LLC
Hiland Partners, LLC HILAND PARTNERS HOLDINGS LLC
High Crest Oils, Inc. BP AMERICA
High Plains Oil Corp. 1985 DEVON ENERGY
Highland Energy Co. CALPINE PRODUCER SER., LP
HIGHLAND RESOURCES, INC.
Highmount Black Warrior Basin LLC WALTER BLACK WARRIOR BASIN LLC
HighMount Midwest Energy LLC LINN OPERATING, INC.
HighMount Exploration and Production Michi- ENERVEST LTD
Hightower Oil & Gas OLIX ENERGY
Hilliard Oil & Gas Inc. 1985 GRAHAM RESOURCES INC.
Hingeline-A1162Overthrust Oil/Gas, Inc. WHITING PETROLEUM CORP.
HiPoint Petroleum Corp. 1981 GIBRALTAR EXPLORATION LTD.
HLP Operating Co. 1986 HPC OPERATING CO.
HMG Associates NATURAL RESOURCE MGMT CORP.
HNG Fossil Fuels Co. 1983 EOG RESOURCES, INC.
HNG Offshore Properties, Inc. EOG RESOURCES, INC.
HNG Oil Co. 1985 EOG RESOURCES, INC.
HNG/InterNorth Exploration Co. 1986 EOG RESOURCES, INC.
HOC 1982 Rockies Oil Program see Dominion Exploration & Production
Hold Oil Corp. 1989 HCG ENERGY CORP.
Holding Company, Ltd. GLOBAL NATURAL RESOURCES CORP.
Holly Energy, Inc. 1984 EOG RESOURCES, INC.
Homa Oil and Gas Company Inc. FOREST OIL PERMIAN CORP.
Home Petroleum Corp. 1989 PRESIDIO OIL CO.
Home-Stake O&G Co. ENCORE OPERATING, LP
39. Lower Case—Past Contact UPPER CASE—CURRENT CONTACT
38
Home-Stake Royalty Corp. ENCORE OPERATING, LP
Hondo Oil & Gas Co. 1963 BP AMERICA
Hondo Oil & Gas Co. 1992 DEVON ENERGY
Honolulu Oil Corp. 1961 * BP AMERICA
Hoover & Bracken Energies, Inc. DIVERSIFIED ENERGIES INC.
Houston Drilling & Energy Corp. 1977 HOUSTON OIL & ENERGIES INC.
Houston Natural Gas Production Co. 1972 EOG RESOURCES, INC.
HOUSTON OIL & ENERGY, INC.
Houston Oil & Minerals 1981 DEVON ENERGY
Houston Oil Co. 1956 BP AMERICA
Houston Oil Fields Co. 1987 * PLAINS RESOURCES, INC.
Houston Oil Royalty Trust DEVON ENERGY
Houston Oil Trust DEVON ENERGY
Howell Petroleum Co. ANADARKO E&P ONSHORE LLC
HPC OPERATING CO.
HPC, INC. See PRESDIO OIL CO.
HS Resources Inc. - 2001 KERR-MCGEE ROCKY MOUNTAIN
HS Royalty Ltd ENCORE OPERATING, LP
Hudson Gas & Oil EXXON MOBIL CORP. LP
Hudson Oil Co. BP AMERICA
Hudson's Bay Oil & Gas Co. DOME PETROLEUM
Huffco Gas & Oil Inc. 1988 TOTAL E&P USA INC
Huffco Oil Programs Inc. 1988 TOTAL E&P USA INC
Huffco Petroleum Corp. 1988 TOTAL E&P USA INC
Huffington Exploration Corp. 1988 TOTAL E&P USA INC
Hughes Eastern Producing, Inc. UNION OIL CO. OF CALIFORNIA
Hughes Oil & Gas Inc. 1989 TEXAS MERIDIAN RESOURCES LTD
Hugoton Capitol Limited Partnership PIONEER NATURAL RESOURCES USA,
HUGOTON ENERGY CORPORATION
Hugoton Exploration Corporation CHESAPEAKE EXPLORATION LLC
Hugoton Production Co. 1969 PIONEER NATURAL RESOURCES USA,
Huisache Operating Co. 1977 PENINSULA RESOURCES CORP.
Humble Oil & Refining Co. 1972 EXXON MOBIL CORP L.P.
Humble Oil Co. 1917 EXXON MOBIL CORP L.P.
Humphreys Corp. 1931 BP AMERICA
Hunnicutt & Camp Co. 1981 see Tenneco Inc
HUNT OIL COMPANY
Hunt Petroleum (AEC) Inc XTO ENERGY INC.
Hunt Petroleum Corporation XTO ENERGY INC.
HUNTER RESOURCES, INC.
Huntington Beach Company CHEVRON U.S.A. INC.
40. Lower Case—Past Contact UPPER CASE—CURRENT CONTACT
39
Huntley & Huntley Energy Exploration LLC OLYMPUS ENERGY, LLC
Husky Oil Co. 1984 MARATHON OIL COMPANY
HUSKY OIL LTD
HYDRO GULF OF MEXICO, LLC
Hytech Energy Corp. 1979 ANADARKO E&P COMPANY, LP
I.W. Lovelady 1978 * DEVON ENERGY
Ibex Inc. BRECKENRIDGE OPERATING CO.
IEC Oil & Gas Corp. 1987 HEADINGTON INVESTMENTS, INC.
Ike Lovelady, Inc. 1986 PETROHAWK RESOURCES CO.
ILEX OIL CORP.
Illinois Industries Inc. 1985 TRANS ATLANTIC RESOURCES CORP.
Imperial American Energy 1977 * FREEPORT-MCMORAN ENERGY PTNRS
Imperial Oil Company of California IMPERIAL OIL COMPANY
Imperial Petroleum MOSS PETROLEUM
Incomare Resources, Inc. KERRCO INC.
Independent Exploartion Co. 1952 TESORO PETROLEUM CORP.
Independent Oil & Gas Co. 1927 CONOCOPHILLIPS
Independent Resources, Inc. ACCESS ENERGY CORP
Indian Oil Company CANAAN ENERGY CORPORATION
Indian Territory Illuminating Oil Co. OCCIDENTAL OIL & GAS CORPORATION
Indian Valley Oil Co. (Merger) IMPERIAL OIL COMPANY
Indian Wells Oil Co. 1979 * ANADARKO E&P COMPANY, LP OIL &
Indian Wells Oil Co. 1987 PARKER & PARSLEY PETROLEUM CO.
Industrial Gas Supply Corp. ENTERPRISE RESOURCES INC.
Inexco Oil Company CONOCOPHILLIPS
Ingram Oil & Refining Co. 1961 MURPHY OIL CORP.
Integral Petroleum Corp. 1976 BUTTES OIL & GAS CO.
Integrated Energy, Inc. MCO RESOURCES CORP.
Inter-American Petroleum Corp. 1978 GRAHAM RESOURCES INC.
InterCoast Oil & Gas Co. KCS RESOURCES, INC.
Intercoastal Operating Co. IOC EXPLORATION, INC.
International Min. & Chemical Corp. 1986 BASF CORP/WINTERSHALL CORP.
International Nuclear Corp. INEXCO OIL CO.
International Paper Co. CHEVRON MIDCONTINENT, LP
International Paper Gas Pipeline Co. CHEVRON MIDCONTINENT, LP
International Petr. Resources Corp. 1972 PACIFIC ENERPRISES OIL CO. (USA)
InterNorth Inc., E&P Division EOG RESOURCES, INC.
Intex Oil Co. 1968 TESORO PETROLEUM CORP.
Intratex Gas Co. EOG RESOURCES, INC.
Inveco Holding, Inc. KERRCO INC.
Investors Royalty Co., Inc. 1973 PACIFIC ENERPRISES OIL CO. (USA)
41. Lower Case—Past Contact UPPER CASE—CURRENT CONTACT
40
IOC EXPLORATION, INC.
Iowa/Illinois Gas & Electric Co. MID-AMERICA ENERGY CO.
IP Petroleum Co., Inc. CHEVRON MIDCONTINENT, LP
IRION MOUNTAIN OIL CO.
Iron Sights Operating Inc CHESAPEAKE EXPLORATION LLC
Island Oil & Exploration Co., Inc. PENROSE PRODUCTION
ITR Petroleum, Inc. 1987 GENERAL ATLANTIC ENERGY CORP.
IWG Co 5 KCS RESOURCES, INC.
J M HUBER CORP.
J. C. Trahan Drilling Co. TEXAS INTERNATIONAL PETROLEUM
J. D. WRATHER, JR.
J.E. Crosbie, Inc. 1951 KERR-MCGEE CORP
J.M. Guffey Petroleum Co. 1907 CHEVRON
J.P. Owen 1963 CONOCOPHILLIPS
J.R. Parten Estate FARMERS OIL COMPANY
J.S. ABERCROMBIE MINERAL CO.
J & D Petro, Inc. WILHELM RESOURCES, INC.
Jade Resources, Inc. 1991 CONSOLIDATED OIL & GAS, INC.
Jaeger Energy Corp. 1984 U.S. RESOURCES INC.
Jay Oil Company FOREST OIL PERMIAN CORP.
Jay Petroleum Inc CHESAPEAKE EXPLORATION LLC
Jefferson Lake Sulphur Co. OCCIDENTAL OIL & GAS CORPORATION
JEM Petroleum Corp. 1985 PATRICK PETROLEUM CO,
Jeremiah Corp. OCTOBER OIL CO.
Jergins Oil Co. EXXON MOBIL CORP.
Jerry Chambers Exploration Co. KERR-MCGEE CORP
Jerry Chambers Exploration Co. AXEM RESOURCES, INC.
Jet Oil Co. SOUTHWEST ROYALTIES INC. US OIL
JMG Oil & Gas CHAPARRAL ENERGY INC.
J-O'B OPERATING CO.
Jocelyn-Varn Oil Co. VARN OIL CO.
John A. Bell, Jr. 1917 BP AMERICA
John A. Taylor Co. 1983 PLAINS RESOURCES, INC.
John G. Hammons Inc. JGM COMPANY
JOHN P. MCNAUGHTON
Johnson Oil & Refining Co. 1956 CONOCOPHILLIPS
Johnson Oil & Gas Co. CHEVRON CORP.
Johnston Ranch Royalty Co. HESS CORPORATION
Jonell Gas MCO RESOURCES, INC.
Jones & Pellow Oil Co. 1987 * BOGERT OIL CO./LOUIS DREYFUS GAS
Jones-O'Brian J-O'B OPERATING CO.
42. Lower Case—Past Contact UPPER CASE—CURRENT CONTACT
41
JOSEPH B. SINGER OIL COMPANY managed by AVIVA
Journey Oil and Gas JETTA APPLACHIAN COMPANY
JR Operating Inc. GREAT LAKES ENERGY PARTNERS LLC
Julian Potter Estate 1969 ILEX OIL CORP.
Juniper Oil & Gas 1967 DAMSON OIL CORP.
JUPITER CORP.
J-W OPERATING CO.
K. Jain & Associates VENEX CORP.
K.R.M. Exploration, Inc. 1973 K.R.M. PETROLEUM CORP.
K.R.M. PETROLEUM CORP.
K. Stewart Petroleum CHESAPEAKE EXPLORATION LLC
Kaiser Energy Inc. 1987 PRESIDIO OIL CO.
Kaiser Oil (U.S.) Lrd. 1984 PLAINS PETROLEUM CO.
Kaiser-Francis Anadarko Limited Partnership GBK INVESTMENTS, LLC
Kaiser-Francis Anadarko, LLC GBK INVESTMENTS, LLC
Kaiser-Francis Gulf Coast, Ltd GBK INVESTMENTS, LLC
Kaiser-Francis Gulf Coast, LLC GBK INVESTMENTS, LLC
Kaiser-Francis Mid-Continent, LLC GBK INVESTMENTS, LLC
Kaiser-Francis Mid-Continent Limited Part- GBK INVESTMENTS, LLC
Kalispell Glacier Park Company CONOCOPHILLIPS
KANATA EXPLORATION OF WESTERN
Kaneb Oil & Gas Co. ANADARKO E&P COMPANY, LP
Keneb Operating Co., Ltd. 1988 * ANADARKO E&P COMPANY, LP
Kanex, Ltd. KERRCO INC.
Kansas-Nebraska Natural Gas 1983 PLAINS PETROLEUM CO.
Kathol Petroleum, Inc. ANADARKO E&P COMPANY, LP
Katz Oil DALEN RESOURCES OIL & GAS CO.
Kaycee Exploration Ltd. 1974 PACIFIC ENERPRICES OIL CO. (USA)
KCS Medallion Resources, Inc. KCS RESOURCES, INC.
KCS Michigan Resources, Inc. KCS RESOURCES, INC.
KCS Mountain Resources, Inc. KCS RESOURCES, INC.
KCS RESOURCES, INC.
Keaton Oil & Gas Co. 1929 ASHLAND OIL CO.
Keba Oil & Gas Co. 1983 WHITING PETROLEUM CORP.
KEC Acquisition Corp. see Dominion Exploration & Production
Kee Exploration Inc. 1986 WICHITA RIVER OIL CO.
Keith Collins Petroleum Corp. 1985 GOLD KING CONSOLIDATED, INC.
Keith Oil Co. c1920 BP AMERICA
Kelley Oil Corp SAMSON
Kellogg Oil Co. 1915 BP AMERICA
Kelso Fund 81 Trust GLOBAL NATURAL RESOURCES CORP.
43. Lower Case—Past Contact UPPER CASE—CURRENT CONTACT
42
Kelso Funs 83-A Trust GLOBAL NATURAL RESOURCES CORP.
Kelso-Lambert Royalty Co., Inc. GLOBAL NATURAL RESOURCES CORP.
Kelso-Lambert Royalty Fund 1981 GLOBAL NATURAL RESOURCES CORP.
Kelso-Lambert Royalty Pool 1983-A GLOBAL NATURAL RESOURCES CORP.
Kenai Oil & Gas Inc. 1984 GRAHAM RESOURCES INC.
Kennedy Mitchel, Inc. 1986 HARKEN OIL & GAS INC.
Keoghan-Hurst Drilling Co. 1928 CONOCOPHILLIPS
Kerlyn Oil Co. 1946 KERR-MCGEE CORP.
Kern County Land Co. 1967 see Tenneco Inc
Kerr, Jain & Associates VENEX CORP.
KERRCO INC.
Kerrco, Ltd. KERRCO INC.
KERR-MCGEE CORP. ANADARKO PETROLEUM CORPORA-
Kerr-McGee North Am. Onshore Corp.-1996 DEVON ENERGY CORP.
KERR-MCGEE OIL & GAS ONSHORE, LP
Kerr-McGee Oil Industries 1965 KERR-MCGEE CORP.
Kerr-McGee Refining Corporation CALUMET LUBRICANTS
Kerr-McGee Refining Coporation (Oklahoma NATURAL GAS CLEARINGSHOUSE
KERR-MCGEE ROCKY MOUNTAIN CORP. ANADARKO PETROLEUM CORPORA-
Kewanee Industries 1977 CHEVRON
Key Oil Company 1976 TOTAL E&P USA INC
KEY PRODUCTION COMPANY
Keystone, Inc. KEYSTONE O&G TX (WY)(LA)(MULTI-
KFOC, INC.
KIMCO ENERGY CORP.
Kimmerer Oil CHEVRON
King Ranch Oil & Gas, Inc. 1988 * PRESIDIO OIL CO.
King Ranch, Inc. ST. MARY LAND & EXPLORATION, INC.
King Resources Co. 1978 TEXAS INTERNATIONAL PETROLEUM
Kingbell Oil Co. 1912 Shell Oil Co.
King-Stevenson Gas & Oil Co. 1965 TEXAS INTERNATIONAL PETROLEUM
Kingwood Oil Co. 1971 ANADARKO E&P COMPANY, LP
Kirby Exploration Company of Texas see Dominion Exploration & Production
Kirby Fletcher Stamford see Dominion Exploration & Production
Kirby Oil & Gas Co. 1957 see Dominion Exploration & Production
Kirby Petroleum Co. 1943 * CONOCOPHILLIPS
Kirby Petroleum Co. 1988 * see Dominion Exploration & Production
KISKA OIL CO.
KLS Holdings KERRCO INC.
KN Energy Inc. 1985 PLAINS PETROLEUM CO.
Koch Hydrocarbons ONEOK
44. Lower Case—Past Contact UPPER CASE—CURRENT CONTACT
43
Koch Oil Co. (50%) FLINT HILLS REOURCES LP
Koch Oil Co. (50%) KOCH INDUSTRIES INC.
Koch, Fred C. KOCH EXPLORATION COMPANY, LLC
Koch, Mary R. KOCH EXPLORATION COMPANY, LLC
Koch Development Corporation KOCH EXPLORATION COMPANY, LLC
Kodiak Oil & Gas (USA) Inc WHITING OIL AND GAS CORPORATION
KP Exploration Inc. 1993 UMC PETROLEUM CORP.
KSA Industries 1974 ADAMS RESOURCES & ENERGY, INC.
K-T Oil Corporation 1982 TOTAL E&P USA INC
L & G Oil & Royalty Co. HESS CORPORATION
L L & B COMPANIES
L L & B Resources L L & B COMPANIES
L. G. Williams Oil Co. 1984 MATRIX ENERGY INC.
L. Noble NOBLE ENERGY, INC. OIL CORP.
LaClare Petroleum Inc. 1985 THE MERIDIAN RESOURCES CORPORA-
Ladd Petroleum Corp. (Merger) ANADARKO E&P COMPANY, LP
LAE Energy, Inc. PETROHAWK RESOURCES CO.
LaGloria Oil & Gas 1957 NOBLE ENERGY, INC.
Lagorce Oil Co. 1969 APACHE CORP.
Laguna Petroleum OXY USA WTP
Laird Oil & Gas, Inc. 1972 WAINOCO OIL CORP.
Lambert Exploration, Inc. GLOBAL NATURAL RESOURCES CORP.
Lamson & Bennett LAMSON/ONSHORE PETROLEUM CORP.
LAMSON/ONSHORE PETROLEUM CORP.
Landa Oil Co. HESS CORPORATION
LANTERN PETROLEUM CORPORATION
LaPlata Associates, LLC CHEVRON MIDCONTINENT, LP
Larcon Oil Co. HESS CORPORATION
Largo Drilling & Exploration Corp. 1972 TRANSCONTINENTAL OIL CO.
Lariat Petroleum NEWFIELD EXPL MID-CONTINENT INC.
LARIO OIL & GAS CO.
Laser Oil Co. KERR-MCGEE CORP
LASMO ENERGY CORP.
LATERRE DEVELOPMENT CORP.
Latigo Petroleum., Inc. (wholly owned subsid- PLAINS EXPLORATION & PRODUCTION
Laurel Royalty Co. 1972 PACIFIC ENERPRISES OIL CO. (USA)
LAVINO OIL & GAS CO.
Lawton Oil EL PASO E&P CO., LP
Le Norman Loco, Inc NOBLE ENERGY, INC
Le Norman Partners, LLC NOBLE ENERGY, INC
Leader Development Corp. 1987 CLINTON GAS SYSTEMS, INC.
45. Lower Case—Past Contact UPPER CASE—CURRENT CONTACT
44
Lear Petroleum Corp. 1988 DALEN RESOURCES OIL & GAS CO.
Lear Petroleum Prtnrs Operating Co. 1986 ENERGEN RESOURCES CORP.
Leben Oil Corp. KAISER-FRANCIS OIL CO.
LeCuno Oil Corp. HESS CORPORATION
Lee M. Bass, Inc. LMBI O&G TX (WY)(LA)(MULTI-STATE)
Leede Exploration Co. 1978 CONOCOPHILLIPS
Leidy Prospecting Co. 1953 CHEVRON
LENORMAN ENERGY CORP.
Leonard Oil see Tenneco Inc
Lewcinda Oil & Gas Co. 1917 CONOCOPHILLIPS
Lewis Production CHEVRON
Liberty North America, Inc. 1988 PRESIDIO OIL CO.
Liberty Oil & Gas Corp. 1988 * PRESIDIO OIL CO.
Limark Corporation NORTHSTAR OPERATING CO.
Limited Oil Co. 1936 EXXON MOBIL CORP.
Limpia Royalty 1962 CHEVRON
Lindenmuth and Associates L L & B COMPANIES
Lind Oil & Gas Company COMANCHE RESOURCES COMPANY
Lindy Petroleum Co. 1982 PATHFINDER PETROLEUM CORP.
LINGEN OIL & GAS INC.
Link Energy, LLC PLAINS ALL AMERICAN PIPELINE, LP
Linn Energy Holdings, LLC RIVIERA UPSTREAM, LLC
Linn Operating, LLC RIVIERA OPERATING, LLC
Lion Oil Co. 1955 LION OIL TRADING & TRANSPORTA-
Lion Oil Company LION OIL TRADING & TRANSPORTA-
Lion Oil Refining Company 1945 LION OIL TRADING & TRANSPORTA-
LION OIL TRADING & TRANSPORTATION,
Lipan Oil Co. ENCANA ENERGY
Logan & Barton CHARLIE BARTON
Lomak Energy Co. RANGE ENERGY I, INC.
Lomak Energy Services Co. RANGE ENERGY SERVICES CO
Lomak Gas Co. RANGE GAS CO
Lomak Gathering & Pros. Co. RANGE GATHERING & PROS. CO
Lomak Offshore LP RANGE OFFSHORE LP
Lomak Operating Co. GREAT LAKES ENERGY PARTNERS LLC
Lomak Petro. (Ohio) Inc. GREAT LAKES ENERGY PARTNERS LLC
Lomak Petroleum Inc. RANGE RESOURCES CORP.
Lomak Pipeline Systems LP RANGE PIPELINE SYSTEMS LP
Lomak Production Co. RANGE PRODUCTION CO.
Lomak Production I LP RANGE PRODUCTION I LP
Lomak Resources Co. GREAT LAKES ENERGY PARTNERS LLC
46. Lower Case—Past Contact UPPER CASE—CURRENT CONTACT
45
Lomak Resources LLC RANGE RESOURCES LLC
Lomita Gasoline Company CHEVRON U.S.A. INC.
Lone Star Production Co. NEWFIELD EXPLORATION GULF
Long-Bell Petroleum Company, Inc. CHEVRON MIDCONTINENT, LP
Longhorn Oil & Gas WAGNER & BROWN, LTD.
Longview Energy General Partners Inc. LONGVIEW ENERGY COMPANY
Longview Gas Company LONGVIEW ENERGY COMPANY
Longview Production Company LONGVIEW ENERGY COMPANY
Lorena Oil Co. CHEVRON
Los Angeles Oil & Refining Co. 1915 BP AMERICA
Los Nietos Co. 1959 CHEVRON CORP.
Lou-Can Oil & Gas, Inc. FRONTIER ENERGY CORP.
Louis Dreyfus Natural Gas Corp. DOMINION EXPLOR. & PROD., INC.
Louisiana Land & Exploration Co CONOCOPHILLIPS
Louisiana Minerals, Ltd. PETER PAUL PETROLEUM CO., GEN.
Louisiana-Hunt Petroleum HUNT PETROLEUM CORPORATION
Love Petroleum Co. SOUTHWEST ROYALTIES, INC.
LPI Acquisition Inc. RANGE ACQUISITION INC.
LPI Operating Co RRC OPERATING CO
LRF Corp RANGE RESOURCES - APPALACHIA,
LUCK PETROLEUM CORP.
LVO Corp. 1974 ANADARKO E&P COMPANY, LP
Lyco Energy Corporation ENERPLUS RESOURCES (USA) CORP.
M & M Production see Tenneco Inc
M.R. YOUNG
MacDonald Oil Corp. 1975 DEVON ENERGY
Madison Pipe Line Company FARMERS OIL COMPANY
Madiion Resources 1985 DEVON ENERGY
MAGIC CIRCLE ENERGY CORP.
Magic Circle Oil Co. 1980 MAGIC CIRCLE ENERGY CORP.
Magna Oil Corp. HESS CORPORATION
Magness Petroleum Co. SAMSON PROD SERVICES COMPANY
Magnolia Petroleum Co. 1959 EXXON MOBIL CORP.
Magnum-Hunter Production, Inc. CIMAREX ENERGY CO
Maguire Energy Company MAGUIRE OIL COMPANY
MAGUIRE OIL COMPANY
Mainland Oil & Minerals, Inc. MAINLAND RESOURCES, INC.
MAINLAND RESOURCES, INC.
Majestic Resources, Inc. 1981 ALTA ENERGY CORP.
Malco Refining BP AMERICA
Malka Production Co. 1978 CONOCOPHILLIPS
47. Lower Case—Past Contact UPPER CASE—CURRENT CONTACT
46
Mallon Oil Co. BLACK HILLS GAS RESOURCES, INC.
MAPCO, Inc. 1985 see Dominion Exploration & Production
Maplewood Glacier Park Company CONOCOPHILLIPS
MAPP Exploration Inc. 1983 BELCOR, INC.
Marathon Oil Co. 1982 MARATHON OIL COMPANY
MARATHON OIL COMPANY
Marathon Petroleum Co. MARATHON OIL COMPANY
MARINE PROPERTIES, INC.
MARINER ENERGY, INC APACHE CORP.
Marion Corp. 1987 * DEVON SFS OPERATING, INC.
Mark Resources Corp. RANGE RESOURCES CORP.
Marland Oil Co. 1929 CONOCOPHILLIPS
Marline Petroleum Corp. 1985 DEVON ENERGY
Marrs McLean 1931 * BP AMERICA
MARTIN EXPLORATION CORP.
Maryland Oil Corp. see Tenneco Inc
Masai Minerals, Ltd. HESS CORPORATION
Masters Energy Corp. 1986 HARKEN OIL & GAS INC.
Matador Petroleum Co. 1922 Shell Oil Co.
Matador Petroleum Corp. ENCANA OIL & GAS USA, INC.
MATADOR RESOURCES CO.
Matagorda Bay Pipeline, Inc. see Dominion Exploration & Production
Matagorda Drilling & Expl. Co. 1982 CONVEST ENERGY CORP.
Matagorda Island Development Corp. 1992 ANADARKO PETROLEUM CORPORA-
Matagorda Island Exploration Corp. 1992 ANADARKO PETROLEUM CORPORA-
Matagorda Pipeline Partnership see Dominion Exploration & Production
MATRIX ENERGY INC.
Maverick Consulting Co. KFOC, INC.
Maxus Energy Company MIDGARD ENERGY COMPANY
Maxus Exploration Company MIDGARD ENERGY COMPANY
May Energy Partners 1987 QUINOCO CO.
May Petroleum Inc. 1987 * ENERGY DEVELOPMENT PARTNERS
Mayfair Minerals, Inc. see Tenneco Inc
Maynard Oil Co. FOREST OIL CORP.
Maynard Oil Co. - Southern Oklahoma Prop- LAMAMCO DRILLING CO.
Mayo FRAZIER
Maze Energy Corporation see Dominion Exploration & Production
Maze Exploration, Inc. see Dominion Exploration & Production
Maze-A 1983 Limited see Dominion Exploration & Production
MB Operating Co Inc. GREAT LAKES ENERGY PARTNERS LLC
McAlester Fuel Co. 1983 UNIMAR CORP.
48. Lower Case—Past Contact UPPER CASE—CURRENT CONTACT
47
McClure Oil 1960 MARATHON OIL COMPANY
McColl-Frontenac Oil Co., Ltd. 1948 CHEVRON
McCollum Exploration Co. WESTERN GEOPHYSICAL
MCCRARY, AN OKLAHOMA LP mangaged by AVIVA
McCulloch Energy, Inc. HARKEN ENERGY COMPANY
McCulloch Oil & Gas Corp. UMC PETROLEUM CORP.
McCulloch Oil Corp. of Texas UMC PETROLEUM CORP.
MCFARLAND ENERGY INC.
McFarlane Oil Co., Inc. GLOBAL NATURAL RESOURCES CORP.
McGowen Exploration Co. 1984 PLAINS PETROLEUM CO.
McGrath & Smith See Smith & McGrath
McKee Petroleum Corp. 1976 EXXON MOBIL CORP.
McMan Oil & Gas Co. 1931 BP AMERICA
McMoRan Oil & Gas Co. 1981 FREEPORT-MCMORAN INC.
MCN Energy Enterprises SUNDOWN ENERGY INC.
MCN EXPLORATION
MCN Investment Corp SUNDOWN ENERGY INC.
MCN Oil & Gas Co. SUNDOWN ENERGY INC.
MCNIC Enhanced Prod SUNDOWN ENERGY INC.
MCNIC Midcontinent Properties SUNDOWN ENERGY INC.
MCNIC Oil & Gas Midcontinent, Inc. SUNDOWN ENERGY INC.
MCNIC Oil & Gas Properties SUNDOWN ENERGY INC.
MCNIC Oil and Gas Company SUNDOWN ENERGY INC.
MCO Resources, Inc. UMC PETROLEUM CORP.
MCOR Oil & Gas Corp. 1980 UMC PETROLEUM CORP.
MC Panhandle Inc. CHESAPEAKE EXPLORATION LLC
McPet 1971 APACHE CORP.
MCR Oil Corp. of Texas 1980 UMC PETROLEUM CORP.
McRae Consolidated Oil & Gas, Inc. 1983 DALEN RESOURCES OIL & GAS CO.
McRae Oil & Gas CHEVRON
MDF Technology, Inc. CONOCOPHILLIPS
MDU Resources Group Inc. FIDELITY OIL CO.
Meadowview, Inc. see Dominion Exploration & Production
Medallion TRANSAMERICAN NATURAL GAS CORP.
MEDALLION CALIFORNIA PROPERTIES
Medallion Gas Services, Inc. KCS RESOURCES, INC.
Medallion Production Co. KCS RESOURCES, INC.
Medicine Bow Operating Co. EL PASO E&P COMPANY, LP
Memorial Resource Development Corp RANGE RESOURCES LOUISIANA, INC
Mendota Oil Co. 1969 APACHE CORP.
Merger Corporation 1948 Henderson Clay Products
49. Lower Case—Past Contact UPPER CASE—CURRENT CONTACT
48
Meridian Aggregates Company CONOCOPHILLIPS
Meridian Gold Company CONOCOPHILLIPS
Meridian Industrial Minerals Co. CONOCOPHILLIPS
Meridian Minerals Company CONOCOPHILLIPS
Meridian Oil Co CONOCOPHILLIPS
Meridian Oil Frontera CONOCOPHILLIPS
Meridian Oil Gathering Inc. CONOCOPHILLIPS
Meridian Oil Inc. (Wisconsin) CONOCOPHILLIPS
Meridian Oil Marketing CONOCOPHILLIPS
Meridian Oil Offshore Acquisition Co. CONOCOPHILLIPS
Meridian Oil Offshore Inc. CONOCOPHILLIPS
Meridian Oil Pipeline Inc. CONOCOPHILLIPS
Meridian Oil Production Inc. CONOCOPHILLIPS
Meridian Oil Production Inc. (Wisconsin) CONOCOPHILLIPS
Meridian Oil Services Inc. CONOCOPHILLIPS
Meridian Oil Storage CONOCOPHILLIPS
Meridian Oil Trading Inc. CONOCOPHILLIPS
Meridian Oil Transportation Inc. CONOCOPHILLIPS
Meridian Petroleum Holding Inc. CONOCOPHILLIPS
Meridian Power Inc. CONOCOPHILLIPS
Merlin Petroleum Co. 1989 * GULF EXPL CONSULTANTS INC.
Merrico Acquisition 1987-NYL
Merrit Oil 1928 CONOCOPHILLIPS
Mesa Limited Partnership * PIONEER NATURAL RESOURCES USA,
Mesa Operating Co. PIONEER NATURAL RESOURCES USA,
Mesa Petroleum Co. PIONEER NATURAL RESOURCES USA,
MGF Drilling Co. KAISER-FRANCIS OIL CO.
MGF Mansfield, Inc. KAISER-FRANCIS OIL CO.
MGF Oil Corp. 1/94 KAISER-FRANCIS OIL CO.
MGF Production Co. KAISER-FRANCIS OIL CO.
MGF Supply Co. KAISER-FRANCIS OIL CO.
MGS Development Co. SUNDOWN ENERGY INC.
Mid Louisiana Gas Company 1987 BASF CORP/WINTERSHALL ENERGY
MID-AMERICA ENERGY CO.
Mid-American Investment Corporation see Dominion Exploration & Production
Mid-American Petroleum, Inc 1986 HUNTER RESOURCES, INC.
MidCon Exploration Co.-Gulf Coast 1986 DAVIS OIL CO. (DAVIS PETRO CORP.)
MidCon Exploration Co.-Gulf Coast 1986 APACHE CORP.
Midcontinent Acquisition Properties SUNDOWN ENERGY INC.
Mid-Continent Petroleum Corp. 1955 SUNOCO PARTNERS MKTG & TERMI-
Middle Bay Oil Co., Inc. PXP GULF COAST, INC.
50. Lower Case—Past Contact UPPER CASE—CURRENT CONTACT
49
Middle States Petroleum 1958 see Tenneco Inc
MIDGARD ENERGY COMPANY
Mid-Gulf Drilling Corp. RANGE ENERGY CORP.
Midhurst Oil Corp. ASHLAND OIL CO.
Mid-Kansas Oil & Gas Co. 1916 MARATHON PETROLEUM CO.
Midland Oil Company 1961 CONSOLIDATED OIL & GAS, INC.
Midlands Energy Co. 1984 FREEPORT-MCMORAN INC.
Mid-Tex Oil & Gas GROVE OIL & GAS
Midway Oil Co. 1905 DEVON SFS OPERATING, INC.
Midway Six Oil Co. 1910 BP AMERICA
Midwest Exploration Co. 1930 BP AMERICA
Midwest Oil Co. 1974 BP AMERICA
Midwest Production Co. 1958 see Dominion Exploration & Production
Midwest Refining Co. 1921 BP AMERICA
Midwest Resources, Inc. MID-AMERICA ENERGY CO.
MILAGRO EXPLORATION
Mile High Properties Inc. LONGVIEW ENERGY COMPANY
Miles Petroleum Inc OXFORD CONSOLIDATED, INC.
Milestone Petroleum, Inc. 1985 CONOCOPHILLIPS
Millane, Inc. (Assets) IMPERIAL OIL COMPANY OF CALIFOR-
Millican Oil Co. ANADARKO E&P COMPANY, LP
Minatome Corp. 1987 Name Change Only ENERGEN RESOURCES CORP.
Minden Oil & Gas Inc. 1985 CASTLE ENERGY CORP.
Minnehoff Oil Co. 1912 Shell Oil Co.
Minnehoma Oil Co. CHEVRON
Mission Development CHEVRON
Mission E & P, LP PETROHAWK PROPERTIES, LP
Mission Holdings, LLC PETROHAWK PROPERTIES, LP
MISSION RESOURCES PARTNERS LP
Mission Resources Corp. PETROHAWK PROPERTIES, LP
Mission Resources Inc. 1987 MISSION RESOURCE PTNR LP
Mississippi River Corp. NATURAL GAS & OIL
MISSOURI RIVER LP managed by AVIVA
Mistal, Inc. TOTAL E&P USA INC
Mitchell & Mitchell Gas & Oil Corp. 1971 DEVON ENERGY
Mitchell Energy DEVON ENERGY
MKI ENERGY, INC.
Mobil Oil Corporation EXXON MOBIL CORPORATION
Mobil Seeligson SUNOCO PARTNERS MKTG & TERM-
Mobil-GC EXXON MOBIL CORPORATION
Moha Petroleum Okla., Inc. CHESAPEAKE ORC, LLC
51. Lower Case—Past Contact UPPER CASE—CURRENT CONTACT
50
Mohawk Petroleum PETER BOSCH
Monarch Royalty Corp. 1959 DEVON ENERGY
MONCRIEF OIL INTERESTS
Monday Oil Co. 1946 CHEVRON
Monsanto Company 1972 LION OIL TRADING & TRANSPORTA-
Monsanto Oil Co. 1986 BHP PETROLEUM (AMERICAS) INC.
Montana Power Co. ENCANA ENERGY
Montara Petroleum Co. NORD-MONTARA PETROLEUM CO.
Monte Carlo Exploration Inc. REBEL EXPLORATION INC.
Montecito Corp. FORCHALL OIL
Montejas Energy Resources, Inc. 1984 SEAHAWK OIL INTERNATIONAL, INC.
Monterey Oil Co. 1960 EXXON MOBIL CORP.
Montex Exploration Co. 1957 see Dominion Exploration & Production
Montoya Oil Co. 1952 FELMONT OIL CORP.
Moore McCormack Energy, Inc. 1988 NEXEN PETROLEUM U.S.A. INC.
MORAINE PRODUCTION LTD.
Moran Energy Inc. 1984 ANADARKO E&P COMPANY, LP
Morgan Development, Inc. KERR-MCGEE CORP.
Morgan Gulf Co. BP AMERICA
Morgan Resources, Inc. KERR-MCGEE CORP.
Mormac Energy Corp. 1983 ENCINO ENERGY & DEV CORP.
Moseley Petroleum Co. HESS CORPORATION
MOSS PETROLEUM
Mound Co. 1963 * BHP PETROLEUM (AMERICAS) INC.
Mountain & Plains Oil Co. 1980 DEVON ENERGY
Mountain Front RANGE RESOURCES
Mountain Fuel Supply 1985 QUESTAR CORP.
Mountain States Oil Co. 1919 CONOCOPHILLIPS
Moxa Energy Corp. 1984 ILEX OIL CORP.
M-R Holdings Acquisition Company CONOCOPHILLIPS
M-R Holdings Inc. CONOCOPHILLIPS
M-R Holdings Inc. No 1 CONOCOPHILLIPS
M-R Holdings Inc. No 2 CONOCOPHILLIPS
M-R Holdings Inc. No 3 CONOCOPHILLIPS
M-R Holdings Inc. No 4 CONOCOPHILLIPS
M-R Holdings Inc. No 5 CONOCOPHILLIPS
M-R Holdings Inc. No 6 CONOCOPHILLIPS
M-R Holdings Inc. No 7 CONOCOPHILLIPS
MRD Operating LLC RANGE LOUISIANA OPERATING, LLC
MRT Exploration Co. 1983 ANADARKO E&P COMPANY, LP
Mt. Diable Corp. 1964 CHEVRON
52. Lower Case—Past Contact UPPER CASE—CURRENT CONTACT
51
MTrust Corp., N.A. AMERITRUST TEXAS, N.A.
Multistates Oil Properties PIONEER NATURAL RESOURCES USA,
Murchison Trusts 1957 see Dominion Exploration & Production
Murphy Oil Company CHEVRON U.S.A. INC.
MURPHY OIL CORP.
Murvale Company/Murvale Oil Company CHEVRON U.S.A. INC.
Muskeg Oil Co. BP AMERICA
Mutual Oil Co. 1928 CONOCOPHILLIPS
MW Petroleum Corp. APACHE CORP.
MWJ Producing Co. OCOTILLO
MWJR Petroleum Corp. APACHE CORP.
N.G. Penrose PENROSE PRODUCTION CO.
NABORS DRILLING USA, LP
NAFCO Oil & Gas, Inc. CHEVRON
NANCE PETROLEUM CORPORATION
Nanome Aggregates Inc. CONOCOPHILLIPS
NARECO Corporation GLOBAL NATURAL RESOURCES CORP.
Nat Hunter Producing Co. 1931 BP AMERICA
National Energy Group, Inc. SANDRIDGE ENERGY, INC.
National Exchange, Inc. CONOCOPHILLIPS
NATIONAL FUEL GAS CO.
National Oil Co. 1974 Shell Oil Co.
National Oil Co. 1985 FREEMONT ENERGY CORP.
National Petroleum Co. 1915 BP AMERICA
National Petroleum Corp. of Tampa 1960 MURPHY OIL CORP.
Natol Petroleum Corp. DAMSON OIL CORP.
Natomas Co. 1983 MAXUS ENERGY CORP.
Natomas North America MAXUS EXPLORATION
Natomas North America APACHE CORP.
NATURAL GAS & OIL
Natural Gas and Oil Corporation * TOTAL E&P USA INC
Natural Gas Clearinghouse TARGA RESOURCES
Natural Gas Producing Co. 1983 EXXON MOBIL CORP.
Natural Reserves Inc. 1984 AMERICAN RESOURCES INC.
Natural Resource Management Corp Sandridge Energy
Natural Resources Corp. of Texas GLOBAL NATURAL RESOURCES CORP.
Natural Resources Corporation GLOBAL NATURAL RESOURCES CORP.
Navarro Oil Co. CONOCOPHILLIPS
Navidad Oil & Gas Co. BOLTEX OIL & GAS CO.
NCI-Shawnee, LP PETROHAWK PROPERTIES, LP
Neely & Neely IRION MOUNTAIN OIL CO.
53. Lower Case—Past Contact UPPER CASE—CURRENT CONTACT
52
NEG Oil & Gas LLC SANDRIDGE ENERGY, INC.
Nelson Petroleum Co. SAMSON PROD SERVICES COMPANY
NELSON R. THOMAS
NERCO OIL & GAS
NEUMIN PRODUCTION CO.
New Britain, Ltd PETER PAUL PETROLEUM CO., GEN.
New York Life Oil & Gas Production Partner- see Dominion Exploration & Production
Newfield Exploration Mid-continent Inc. ENCANA COPORATION
Newfield Exploration, INC. ENCANA COPORATION
Newmark Resources 1977 TRINITY RESOURCES, INC.
NEWMONT OIL CO.
Newmont Oil Co. 1988 * EXXON MOBIL CORP.
NFC Petroleum Corp. KAISER-FRANCIS OIL CO.
NGC Energy Company 1989 DALEN RESOURCES OIL & GAS CO.
NIKLOS OIL & GAS CO.
Niklos Oil & Gas Co. 1987 see Dominion Exploration & Production
Ninian Oil Co. 1989 see Dominion Exploration & Production
Ninian Oil Finance Corp. HIGHMOUNT EXPLORATION & PRODUC-
Ninian Oil Holding Company see Dominion Exploration & Production
Noarko Resources Inc. 1986 WICHITA RIVER OIL CO.
Noble Energy Production, Inc. NOBLE ENERGY, INC.
Nor-Am Exploration Corp. RED EAGLE RESOURCES CORP.
Noram Petroleum, L.L.C. CHAPARRAL ENERGY, L.L.C.
NORD-MONTARA PETROLEUM CO.
Nordon Oil Corp. 1969 TEXAS INTERNATIONAL PETROLEUM
Norfitt FINA OIL & CHEMICAL CO.
Norfolk Energy Inc. 1993 UMC PETROLEUM CORP.
NORMANDY OIL & GAS CO.
Nortex Gas & Oil Co. 1983 EOG RESOURCES, INC.
North American Oils Consolidated 1950 CONOCOPHILLIPS
North American Resources Corp. ENCANA ENERGY
NORTH AMERICAN ROYALTIES, INC.
North Block Gas AVEN GAS & OIL, INC.
North Central Oil Corp. PLAINS EXPLORATION & PRODUCTION
North Star JOHN P. MCNAUGHTON
North Timbers Oil, LP XTO ENERGY INC.
Northeast Energy Development Corp. GREAT AMERICAN RESOURCES, INC.
Northern Michigan Exploration Co. NEWFIELD EXLP MID-CONTINENT INC.
Northern Natural Gas Co., E&P Division EOG RESOURCES, INC.
Northern Plains Railroad Company CONOCOPHILLIPS
Northern Rockies Pipe Line Co. CONOCOPHILLIPS
54. Lower Case—Past Contact UPPER CASE—CURRENT CONTACT
53
Northlander Oil Company 1974 TOTAL E&P USA INC
NORTHSTAR OPERATING CO.
NORTHSTAR RESOURCES, INC.
Northwest Energy 1983 WILLIAMS EXPLORATION CO.
Northwest Exploration Company 1986 * TOTAL E&P USA INC (50%)
Northwest Production Corporation CONOCOPHILLIPS
Norwalk Oil Co. 1950 CONOCOPHILLIPS
Nova Petroleum Corp. 1985 NOVA RESOURCE, INC.
NOVA RESOURCE, INC.
Noyly Development Co. 1953 CHEVRON
NRM ENERGY LIMITED PARTNERSHIP
NRM Operating Company, L.P. NATURAL RESOURCE MGMT CORP.
NRM Petroleum Corp. NATURAL RESOURCE MGMT CORP.
Nucorp Energy Inc. BRIDGE OIL COMPANY, L.P.
Nuevo Energy Corp. PLAINS E & P CO.
NUGGET OIL CORP.
NUMAC RESOURCES
Nu-West Dvlpmt. (U.S. Assets) 1984 * FREEPORT-MCMORAN
Nu-West Dvlpmt. (U.S. Assets) 1984 * TRANSCO EXPLORATION PARTNERS
Nylife Resources Inc. see Dominion Exploration & Production
O'Connell Holdings, LLC BLACK STONE ENERGY COMPANY, LLC
O.A. Sutton 1962 CHEVRON
O.G.I. Oil & Gas, Inc. 1984 DEVON ENERGY
OCCIDENTAL OIL & GAS CORP.
OCCIDENTAL PERMIAN LP (SEE OXY)
OCCIDENTAL TRANSACTION 1, LLC
OCEAN DRILLING & EXPLORATION CO.
Ocean Energy Inc. (Houston) DEVON ENERGY PROD. CO, LP
Ocean Oil & Gas OCEAN DRILLING & EXPLORATION CO.
Oceana Exploration Co LC VICTORY ENERGY PARTNERS LLC
Oceanic Oil PRODUCING PROPERTIES
Ocelot Oil Co. EOG RESOURCES, INC.
OCOTILLO
OCTOBER OIL CO.
Odessa Natural Corp. CONOCOPHILLIPS
Odessa Natural Gasoline Company CONOCOPHILLIPS
Odessa Pipeline Company CONOCOPHILLIPS
Odyssey Energy Inc. 1984 TRAFALGAR HOUSE OIL & GAS INC.
Odyssey Petroleum Co. PETROHAWK PROPERTIES, LP
Odyssey Petroleum Company HAMPTON RESOURCES CORP.
Offshore Exploration Oil Co. OXOCO INC.
55. Lower Case—Past Contact UPPER CASE—CURRENT CONTACT
54
Ohio L & M Co., Inc. 1988 ALLIANCE PETROLEUM CORP.
Ohio Oil Co. 1962 MARATHON PETROLEUM CO.
Oil & Gas Properties CHEVRON
Oil Center Operating Inc. PENT ENERGY, LLC
OIL CITY PETROLEUM INC.
Oil Development Co. of Texas 1978 DEVON SFS OPERATING, INC.
Oil Development Co. of Utah 1978 DEVON SFS OPERATING, INC.
Oil Drilling, Inc 1963 DEVON ENERGY
Oil State Petroleum Co. 1922 EL PASO E&P COMPANY, LP
Oilman's Properties, Inc. ALAMEDA ENERGY, INC.
Oklahoma Natural Gas Co. ONEOK EXPLORATION CO.
Oklahoma Pacific, Ltd. PETER PAUL PETROLEUM CO., GEN.
Old Dominion Oil Corp. 1983 RATEX RESOURCES INC.
Old Maynard Corporation FOREST OIL PERMIAN CORP.
Old Ocean Oil Co. 1954 BP AMERICA
Oleum Incorporated MAXUS EXPLORATION
Olin Oil & Gas Corp. 1962 EXXON MOBIL CORP.
OLIX ENERGY
Olix Industries, Inc. 1981 DEVON ENERGY
Olsen & Jal SUNOCO PARTNERS MKTG & TERM-
Olympia Drilling Programs 1980 MAGIC CIRCLE ENERGY CORP.
One Liberty Oil Co. 1988 PIONEER NATURAL RESOURCES USA,
ONEOK Beta Co. TXOK ENERGY RESOURCES CO.
ONEOK Energy Resources Co. TXOK ENERGY RESOURCES CO.
ONEOK Exploration Co. CHESAPEAKE ORC, LLC
ONEOK Resources Co. CHESAPEAKE ORC, LLC
ONEOK Exploration Co. 1980 ONEOK EXPLORATION CO.
Onshore Exploration LAMSON/ONSHORE PETROLEUM CORP.
Onyx Oil Co. 1981 DEVON ENERGY
Orbit Energy, Inc. ORBIT PETROLEUM, INC.
ORIGINALA PETROLEUM CORP.
Orion 1981 Royalty Fund, Ltd. GLOBAL NATURAL RESOURCES CORP.
Orion Louisiana Royalty Fund GLOBAL NATURAL RESOURCES CORP.
Orion Petroleum, Inc. GLOBAL NATURAL RESOURCES CORP.
Orion Petroleum, Ltd. GLOBAL NATURAL RESOURCES CORP.
ORS CORP.
Oryx Energy Company KERR-MCGEE CORP. ONSHORE LP
Osage Milestone Petroleum CONOCOPHILLIPS
Osage Oil Co. CONOCOPHILLIPS
Osage Oil Co. 1901 OCCIDENTAL OIL & GAS CORPORATION
Osmond Oil Company 1968 Dissolved TOTAL E&P USA INC
56. Lower Case—Past Contact UPPER CASE—CURRENT CONTACT
55
Overland Energy, Inc. 1983 EAGLE EXPLORATION CO.
Overthrust Resources, Ltd. 1986 POLARIS RESOURCES, INC.
Owl Petroleum Co. 1986 ANADARKO E&P COMPANY, LP
OXFORD CONSOLIDATED, INC.
Oxley Petroleum CHESAPEAKE ORC, LLC
OXOCO INC.
OXY RESOURCES CALIFORNIA, LLC
OXY USA INC.
OXY USA WTP, LP
P & O Oil Corp. 1980 CONOCOPHILLIPS
Pacific Energy Investments, Inc. KERR-MCGEE CORP.
Pacific Energy Investments, N.V. KERR-MCGEE CORP.
Pacific Energy Ventures KERR-MCGEE CORP.
Pacific Enterprises ABC Corp. PEC MINERALS, LP
Pacific Enterprises Oil & Gas HUNT OIL COMPANY
Pacific Enterprises Oil Co. (USA) HUNT OIL COMPANY
Pacific Enterprises Roy. Co. 1990 PACIFIC ENTERPRISES OIL CO. (USA)
Pacific Enterprises Royalty Company SABINE ROYALTY TRUST
Pacific Federal Ventures KERR-MCGEE CORP.
Pacific Lighting Oil & Gas 1987 PACIFIC ENTERPRISES OIL & GAS
Pacific Oil & Gas Development Corp. CALLON PETROLEUM CO.
Pacific Union TEXAS AMERICAN OIL CORP.
Pacific Western Oil Corp. 1956 CHEVRON
Packaging Research Corporation 10/93 HEADINGTON INVESTMENTS, INC.
Paladin Petroleum Corp. 1987 * ENERGY DEVELOPMENT PARTNERS
Palm Petroleum Corp. DAMSON OIL CORP.
Palmer Oil Co. see Tenneco Inc
Pan American Petroleum Corp. BP AMERICA
Pan Ocean Oil Corp. 1976 MARATHON PETROLEUM CO.
Pan Oil Co. 1972 DAMSON OIL CORP.
PanCanadian Energy Corp. ENCANA CORP.
PanCanadian Energy Holdings, Inc. ENCANA ENERGY HOLDINGS, INC.
PanCanadian Energy Resources, Inc. ENCANA ENERGY RESOURCES, INC.
Pan Canadian Energy Services Inc. ENCANA ENERGY SERVICES INC.
PanCanadian Gulf of Mexico, Inc. ENCANA GULF OF MEXICO
PanCanadian Heritage Lands ENCANA HERITAGE LANDS
PanCanadian Midstream, Inc. ENCANA MIDSTREAM INC.
PanCanadian Midstream, Ltd. ENCANA MIDSTREAM, LTD
PANCANADIAN PETROLEUM CO.
PanCanadian Resources ENCANA RESOURCES
PanEnergy Field Services, Inc. DUKE ENERGY FIELD SERVICES, INC.
57. Lower Case—Past Contact UPPER CASE—CURRENT CONTACT
56
Pan Energy Transport and Trading Co. TEPPCO CRUDE OIL LP
Pangea Petroleum Co. 1987 HARCOR ENERGY, INC.
Panhandle Eastern Exploration Co. 1987 ANADARKO PETROLEUM CORPORA-
Panhandle Oil Corp. 1956 TOTAL E&P USA INC
Pantano WESTERN
Panterra Petroleum NANCE PETROLEUM CORP.
panther energy company EAGLE ENERGY ACQUISITIONS LP/
Paova Oil Co. 1912 Shell Oil Co.
Paraffine Oil Co. EXXON MOBIL CORP.
Paraffine Oil Corp. 1981 WILLIAMS EXPLORATION CO.
Parallel Petroleum Corporation PARALLEL PETROLEUM LLC
Park Oil & Gas Inc. MARTIN EXPLORATION CORP.
Parker & Parsley Petroleum Co. PIONEER NATURAL RESOURCES USA,
Parker Oil ANADARKO E&P COMPANY, LP
Parrent Oil & Gas 1983 QUADRANT RESOURCES INC.
Parris Oil Co. 1912 Shell Oil Co.
Parten Operating Inc. FARMERS OIL COMPANY
PARTNERS OIL CO.
Pasco Oil Properties 1975 BP AMERICA
Pate Oil Co. 1959 EXXON MOBIL CORP.
PATHFINDER PETROLEUM CORP.
Patina BNR Corporation NOBLE ENERGY, INC.
Patina Oil & Gas Corporation NOBLE ENERGY, INC.
Patina Oklahoma Corp. NOBLE ENERGY, INC.
Patina San Juan Incorporated NOBLE ENERGY, INC.
PATRICK PETROLEUM CO.
Patrick Petroleum Co. 1984 * ANADARKO E&P COMPANY, LP
Patrick Petroleum Corp. UNIT PETROLEUM CORP.
Patrick-Bayou Resources UNIT PETROLEUM CORP. (50%)
Patrick-Bayou Resources NEWFIELD EXPL MID-CONTINENT INC.
Pauley Petroleum Inc. 1987 HONDO OIL & GAS CO.
Pauline P Lambe KOCH EXPLORATION COMPANY, LLC
Pax Investment Corp. HESS CORPORATION
P'Bell Energy Co. SUNDOWN ENERGY INC.
PCTC - Oregon, Inc. CONOCOPHILLIPS
PCTC - Skykomish, Inc. CONOCOPHILLIPS
PCTC, Inc. CONOCOPHILLIPS
PCU Inc. of Texas 1985 LUCK PETROLEUM CORP.
Peachtree Production Co. PLAINS RESOURCES, INC.
Peake Petroleum Co. 1964 EL PASO E&P COMPANY, LP
Pecos Company CONOCOPHILLIPS
