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Corporate Name Change & Merger Index

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Company Name
(OLD NAME)
Changed or Merged To
(NEW NAME)
Date of
BLM WY
Decision or
Cover Memo
State
Office that
Issued
Decision
B&C Exploration CompanyRainbow Resources, Inc.05/19/1972WY
B.A. Duncan, IncJ Walter Duncan, Jr. Inc.01/20/1989WY
Bailey, Rosalind Lavonne  Estate of Rosalind Lavonne Bailey04/03/2014WY
Balcron Oil CoEquitable Res Ene Co06/25/1992WY
Baldwin Exploration CorporationBaldwin Lynch Energy Corp.08/17/2010WY
Ballard Ene 1992 Ltd PtnrshpBallard Ene (Delaware) LP
    (Amended Decision)
03/19/1997
06/21/2004
WY
WY
Ballard Ene (Delaware) LPBallard ENE (Delaware) LLC
    (Amended Decision)
03/19/1997
06/25/2004
WY
WY
Ballard Ene (Delaware) LLCBallard Petroleum LLC
    (Amended Decision)
03/20/1997
06/25/2004
WY
WY
Ballard Energy 1992 LPBallard Petroleum LLC04/17/1997WY
Ballard Petroleum LLCAEC Oil & Gas (USA) Inc02/13/2002WY
Ballard Petroleum LLCBallard Petroleum Holdings LLC03/13/2001WY
Barby Energy CorporationLatigo Oil & Gas Inc03/02/2005NM
Barfield Oil CorporationEvergreen Operating Corporation03/16/1990WY
Bargo Energy CompanyMission Resources Corporation08/28/2002CA
Barnes Barrett, LLCNorth Dallas Energy Holdings LLC 01/12/2010
01/26/2010
NM
WY
Barrett Energy IncPlains Petroleum Co.03/14/2001WY
Barrett Energy Company
(company dissolved)
Barrett Resources Corp
    (assets returned to parent company)
07/18/1995WY
Barrett Resources CorpWilliams Prod RMT Company09/18/2001WY
Basic Earth Science Systems, Inc. Earthstone Energy, Inc.06/14/2010
07/29/2010
CO
WY
Basin Energy IncSterling Energy Corporation04/19/1995WY
Basin Exploration IncStone Energy LLC02/28/2001WY
Basin Operating CompanyBasin Exploration Inc05/23/2001WY
Basin Sterling IncBasin Exploration Inc04/19/1995WY
Bass Brothers Enterprises IncBass Enterprises Production Company10/28/1985WY
Bass Enterprises Production CoBass Brothers Enterprises Inc03/01/1986WY
Bass Enterprise Production CompanyBEPCO, L.P.01/14/2006NM
Basura Oil CompanySimba Energy Corp04/23/2001NM
Bayou Resources, Inc.Patrick Bayou Corporation03/30/1989WY
Bayless Robert Lee (L) Estate ofEstate of Robert Lee Bayless, Sr.: Robert Lee Bayless, JR. and Price Murray Bayless personal representatives for the estate02/12/2008WY
BC Merger SUB, Inc.Evergreen Resources, Inc.02/10/2005MT
Beacon Exploration CompanyToklan Oil & Gas Corp

03/27/2002
04/24/2002

NM
WY
Beacon Holding CompanyBeacon Exploration Company03/07/1984WY
Beard Oil CompanyThe Beard Oil Company03/30/1987WY
Beard Oil Company, TheBeard Oil Company
    (Amended Decision)
03/30/1987
04/28/1987
WY
WY
Beard Oil Company, TheUPC Holding Corporation06/02/1989WY
Beaver Creek Hydrocarbons IncSimba Energy Corp04/23/2001NM
BEC Merger CorpThe Beard Company06/02/1989WY
Belco Development CorpEnron Oil & Gas Co11/16/1990WY
Belco Energy I LPWestport Oil & Gas Company Inc02/07/2002
02/25/2002

CO
WY

Belco Energy CorpWestport Oil & Gas Company Inc02/07/2002
02/25/2002
CO
WY
Belco Energy CorpWestport Oil & Gas Company Inc02/25/2002CO
Belco Energy LPBelco Energy I LP07/26/1999WY
Belco Oil & Gas CorpBelco Operating Corp11/14/2000WY
Belco Operating CorpBelco Energy Corp06/24/1999WY
Belco Petroleum North American, Inc.Enron Oil & Gas Company09/26/2005WY
Bell Atlantic CorpVodaphone Airtouch PLC02/24/2004WY
Bell Creek Petroleum CompanyGary-Williams Oil Producer Inc08/14/1985WY
Bell Western CorpVanderbilt Energy Corporation
    (Amended Decision)
05/04/1995
08/19/1986
WY
WY
Bellwether Exploration CompanyMission Resources Corporation08/28/2002CA
BelNorth Energy Corp

Enron O&G Company
Amended Decision-Added Lease

11/16/1990
04/14/1987
WY
WY
BelNorth Petro CorpEnron Oil & Gas Co11/16/1990WY
Bennett Petroleum CorpGarfield Coal Sales Inc05/31/1995WY
BEPCO Operating CompanyBOPCO, L.P. 
    (Oil and Gas Leases Only)
01/08/2007
01/23/2007
CO
WY
Berexco Inc. Manual Corporation05/25/2011
06/01/2011
NM
WY
Beta Exploration IncDietrich Resources Corp04/03/1995WY
BHP Petroleum (USA) IncBHP Petroleum (Americas) Inc12/03/1985WY
Big Piney Oil & GasNational Ene Group Inc10/25/1991WY
Bill Barrett CBM Corporation  Bill Barrett Corporation06/10/2014WY
Bill Barrett CBM, LLCBill Barrett CBM Corporation 09/24/2010WY
Bill Barrett Production CompanyBill Barrett Corporation 09/27/2010WY
Bill Barrett Properties Inc.Bill Barrett Corporation09/27/2010WY
Biller, OsiasEstate of Osias Biller, United Jewish Appeal is beneficiary of oil and gas properties03/18/2005WY
Bird Creek LLCChesapeake Exploration LP04/26/2005NM
Bison Energy CorpMiddle Bay Oil Co01/01/1998NM
Bison Production CoMiddle Bay Production02/15/1998NM
Blackfoot-Cherokee Energy IncBonanza Petroleum Inc12/12/1985WY
Black Hawk Resources CorpWedco Resources Corp10/07/1985WY
Black Ridge Oil & Gas, Inc.Ante5, Inc.

06/19/2012

08/29/2012

ES

WY
Blackstone Natural Resources II-B LPBlack Stone Minerals , L.L.C.03/21/2014WY
Blackstone Natural Resources II LP Black Stone Minerals , L.P.03/21/2014WY
Black Stone Natural Resources IV-B, L.P.Black Stone Minerals Company, L.P.

06/22/2012

08/31/2012

ES

WY
Blazer Energy Corp.EQT Production Company04/18/2011
04/21/2011
ES
WY
Blocker Exploraiton CompanyENSCO Resources Company06/02/1989WY
Bluerock Energy IncTika Energy Inc09/10/2004WY
Bluwater Oil & Gas CorpPrenalta Corp01/06/1988WY
BOAG O&G COBurmah O&G Co01/24/1975WY
BOC Group, Inc., The Linde, Inc. 06/08/2008
02/12/2014
CO
WY
BOG Wyoming LLCWestport Oil & Gas Company Inc

02/07/2002
02/25/2002

CO
WY
Bogert Oil CompanyLouis Dreyfus Natural Gas Corp12/01/1993WY
Bolack, TomThomas Felix Bolack Revocable Trust11/14/2001WY
Bold Energy LPOXY NM LP08/05/2013 
08/27/2013 
NM
WY
Bomac Exploration CompanyW.R. Grace and Company08/11/1976WY
Bonanza Petroleum IncTri-Power Petroleum Inc10/10/1986WY
Bonneville Fuels CorpCarbon Energy Corp (USA) 08/19/2002
08/19/2002
08/26/2002
WY
CO
WY
Borcuk, Peter John (J.)Estate of Peter John (J.) Borcuk, Cecilia J. Borcuk, Independent Executrix and Beneficiary10/23/2006WY
Bordeaux Trading CompanyBordeaux Petroleum Company02/26/1981WY
Borgerding, James HJames H Borgerding Trust01/12/1999WY
Bow Valley O&G IncGreat WTN Oil & Gas Inc11/14/1988WY
Bow Valley O&G IncGreat WTN Onshore Inc02/23/1990WY
Bow Valley Petroleum, IncGW Petroleum, Inc10/28/1988WY
BP Exploration Inc
    (Vacated)
TEX/CON Company
    (Vacated)
04/12/1990
07/16/1990
WY
Bradley Producing CorpTriton O&G Corp03/07/1989WY
Bran Oil CorpBranex Res Inc11/22/1989WY
Branch Oil and GasLaMarsa Corp. 02/17/2011
02/25/2011
MT
WY
Brazos Young CorpTenkay Resources, Inc.12/18/1989WY
Breck Energy (Nevada), LLC  Grant Canyon Oil & Gas, LLC 07/23/2013
08/27/2013
NV
WY
Brek Petroleum, IncGasco Production Company10/21/2008WY
Breitburn Ene CoBreitburn Ene Co LLC07/15/1998WY
Breitburn Energy CO LLCBrietburn Energy Co LP11/20/2004WY
BreitBurn WyomingBreitburn Energy Company LP 
    (oil & gas leases) 
    (rights-of-way grants)

02/15/2007
03/20/2007

WY
WY
Bridge Oil PNG IncParker & Parsley; Prod LP12/27/1996MT
Bridge Oil PhilippinesParker & Parsley; Prod LP12/27/1994MT
Bridge Oil Pipeline CoParker & Parsley; Prod LP12/27/1996MT
Bridge Oil Co LPParker & Parsley; Devel LP08/31/1994
06/15/1995
MT
WY
Bridger Exploration IncAntoco Inc08/01/1984WY
Bridger Petroleum CorporationHome Petroleum Corporation
    Amended Decision
02/07/1980
06/02/1980
WY
WY
BRG Petroleum CorporationChesapeake Exploration LP04/26/2005NM
Briggs, William C.WCB Investments LLC 
    NM Notice (Oil & Gas Leases Only) 
    WY Cover Memo. (No leases)

03/10/2008
03/18/2008

NM
WY
Brigham Oil & Gas, LPStatoil Oil & Gas, LP05/30/2013 
08/26/2013 
CO
WY
Bright & Company LP   Bright & Company I, Ltd01/30/2012
03/28/2012
NM
WY
Bright & Company I, LtdHarvard Petroleum Company, LLC

01/30/2012

03/28/2012
NM
WY
Britoil Ventures IncNinian Oil Co11/05/1987WY
Brock Expl CorpKey Production Company Inc10/08/2002WY
Brock Oil & Gas CorporationKey Production DC Company Inc10/08/2002WY
Brown Ranger Properties, LLC EnCana Oil & Gas (USA), Inc.

07/30/2012

08/22/2012
NM
WY
Bryson Operating CoCaspen Operating Co06/23/1989WY
BSAP II, Inc. Black Stone Energy Company, LLC02/11/2014
03/17/2014
NM
CO
BSNR III
Working Interest GP LLC 
Black Stone Energy Company, LLC03/21/2014WY
BSNR IV GP, L.L.C.Black Stone Minerals Company, L.P.06/22/2012
08/31/2012
ES
WY
BTA Oil ProducersBTA Oil Producers, LLC03/31/2009
06/08/2009
MT
WY
Buckhorn Petroleum CoHarper Oil Company
    Amended Decision-Additional Lease
03/15/1985
10/23/1984
WY
WY
Bucksbaum, MartinMartin Bucksbaum Revocable Trust &
Martin Bucksbaum Marital GST Trust
09/11/2001WY
Buffalo Operating LLCBuffalo Operating Corp09/27/2000WY
Butschli, JacobJacob Butschli 1983 Tr07/13/1992WY
Burlington Northern IncBurlington Northern Railroad Company04/23/1982WY
Burlington Northern Transportation CompanyBurlington Northern Inc04/23/1982WY
Burlington Res O&G, COBurlington Res O&G Co LP06/28/2001WY
Burmah Oil and Gas CoAminoil USA Inc01/06/1977WY
Burton/Hawks, Inc.Hawks Industries, Inc.11/30/1989WY
Buttes Resources CoReunion Energy Co11/29/1994WY

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