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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
BLM State
Office that
Issued
Decision
Dakota Gas Company LLCSignal Hill Company LLC04/05/2012

WY

Dalco Oil Company

Sabine Production Company 

    Amended Decision-Additional Lease

03/09/1977
03/25/1977
05/23/1977
10/21/1977

WY
CO
WY
NM

DALEN Res O&G CoEnserch Expl Inc02/15/1996MT
Damson Resources CorpDamson Oil Corp04/03/1978WY
Dart IncLR Company
Amended Decision
11/15/1979
04/23/1980
WY
WY
Davis, Bobby JAm-West Petro12/12/1989WY

Davis, Walter G (Gray) 

Estate of Walter G. (Gray) Davis, Robbie Elizabeth Davis successor-in-interest to the Estate.

08/02/1984

WY

DC Dudley & AssocDudley & Assoc LLC07/29/1997WY
Decker Energy Investments LLCDecker Energy Investments, LP

10/10/2006
10/23/2006

MT
WY

Deemar, Irving. R.Estate of Irving R. Deemar, Sharon Deemar Szachowicz & Ira Deemar, independent executors for the estate10/21/2005WY
Deines, Gloria JeanThe Gloria Jean Deines Family (Bypass) Trust & the Gloria Jean Deines Living Trust01/29/2007WY
DeKalb CorpDeKalb Energy Co10/21/1988WY
DeKalb Energy CoDEK Energy Co12/29/1998CO
Delaware Inter-American Petro LtdKenai Oil Company Inc
    Amended Decision-Additional Lease
07/14/1978
08/02/1978
10/25/1978
WY
WY
NV
Del Mar Petroleum, Inc.Shenandoah Oil Corp03/03/1977NM
Delta Exploration CompanyPar Petroleum Corporation  05/09/2013
08/27/2013
OR
WY
Delta Petroleum CorporationPar Petroleum Corporation05/09/2013
08/27/2013
 OR
WY
Deminex U.S. Oil CoSouthwest Royalties Inc06/29/2004WY
Denbury Resources, Inc  Denbury Resources Onshore LLC10/31/2011 
01/23/2012 
ES
WY
DeSmet Richard PRichard P DeSmet and Thelma F. DeSmet 1971 Trust05/26/1976WY
DeSmet Thelma FRichard P DeSmet and Thelma F. DeSmet 1971 Trust05/26/1976WY
Destry Gas Co LtdPosse Energy Ltd02/03/1997MT
Detex Oil CorpDeminex U.S. Oil Co03/27/1980WY
Devlan Expl Co LtdDevlan Exploration Inc03/09/1999WY
Devon CorporationDevon Energy Corp09/11/1981WY
Devon Acqstn CorpDevon Permian Corp07/24/2001
07/24/2001
WY
CO
Devon Ene CorpDevon Ene Corp (Nevada)09/28/1980WY
Devon Ene CorpDevon Ene Corp (Delaware)09/28/1980WY
Devon Ene Corp NevadaDeven Energy Corp (NV)09/28/1990
11/22/2000
WY
CO
Devon Energy Corp (NV)Devon Energy Prod CO LP11/09/2001
12/20/2000
WY
Devon Energy Operating Company LPDevon Energy Production Company09/08/2004
08/14/2006
CO
WY
Devon Energy Oper CorpDevon Energy Corp (NV)02/14/1997WY
Devon Louisiana CorporationDevon Energy Production Co LP 
    (Oil & Gas Leases Only)
Devon Energy Production Co LP 
    (Rights-of-Way Grants Only)

03/27/2006

05/25/2006

CO

WY

Devon Merger CompanySanta Fe Snyder Corp10/11/2000
11/13/2004
UT
WY
Devon Permian CorpDevon Energy Prod Co LP07/24/2001
07/24/2001
WY
CO
Devon SFS Operating IncDevon Energy Production Company LP12/09/2002
11/22/2000
WY
CO
Diablo Oil Company

Wichita River Oil Corp 
    Amended Decision—Additional Lease 
    Amended Decision—Additional Lease

05/13/1988
10/13/1988
11/04/1988

WY
WY
WY

Diamond Alkali CompanyDiamond Shamrock Corp01/16/1968
02/01/1968
UT
WY
Diamond Shamrock Corp

Diamond Chemicals Co
    (Amended Decision-Additional Leases)

04/26/1984
06/13/1984
06/29/1984

WY
WY
WY
Diamond Shamrock Exploration CoAGM Corp03/18/1987WY
Diamond Shamrock Exploration CoMaxus Exploration Co07/01/1987WY
Dietrich Exploration Co IncDietrich Resources Corp07/23/1981WY
Dietrich Resources CorpDRX Inc01/28/1994WY
Diverse Energy InvestmentsFNRC DEI GP05/20/2009WY
Diverse GP IIIFNRC DIII GP05/20/2009WY
DKM Resources IncMedallion Production Co03/24/1994WY
DLB Oil & Gas, Inc.Chesapeake Mid-Continent Corp.08/12/1998
 05/22/2008
NM
WY
DOC Production Services CoDamson Holding Corp07/21/1986WY
Dolphin Drilling COMorsey-Wells Oil and Gas corp11/25/1977WY
Dome 1980 Institutional Investors Ltd,
a Limited Partnership

Company Dissolved
Assets go to Texaco Producing Inc

07/11/1994WY
Dominion Black Warrior Basin, Inc.HighMount Black Warrior Basin, LLC05/04/2010
05/17/2010
ES
WY
Dominion Exploration & Production, Inc.Consol Gas Company12/17/2013WY
Dominion Midwest Energy, Inc.HighMount Midwest Energy, LLC05/04/2010
05/17/2010
ES
WY
Doornbos, Gene A, Estate ofKaren D. Davis & Steven M Doornbos10/21/1989WY
Doral Acquisition Corp  Doral Energy Corp07/23/2012
08/29/2012
NM
WY
Doral Energy Corp Cross Border Resources, Inc.07/23/2012
08/29/2012
NM
WY
Dos Ninos Oil & Gas IncSimba Energy Corp04/23/2001NM
Double Eagle Petroleum & Mining CompanyDouble Eagle Petroleum Company07/03/2001WY
Double Oil & Gas IncThe Drexel Burnham Lambert Group Ltd08/19/1992WY
Dow Chemical Company of DE, The
Dow Chemical Company of MI, The
Dow Chemical Company of MI, The
    (Remove Certificate Only Statement)
09/10/2004WY
Drexel Burnham Lambert Group LtdThe Drexel Burnham Lambert Group Ltd08/19/1992WY
Drill and Pump PartnershipCorporate Dissolution, assets divided between partners; Roger J Mayott,
John F Sinclair & Joseph Stevens
11/22/2005WY
Drumheller, Lida RLida R Drumheller Trust,
Gene L Boles, Personal Representative
03/24/1989WY
Drwenski, RemauEstate of Remau Drwenski, Vernon R. Drwenski, Personal Representative12/05/2008WY
Drwenski, Vernon R.
Estate of Vernon R. Drwenski
12/05/2008
WY
Du Pont Holdings IncConoco Inc
    (Amended Decision)
11/10/1981
03/22/1982
WY
Duer Wagner & CompanyWagner Oil Company09/17/2004WY
Duke Energy Field Services, LPDCP Midstream LP 
    (rights-of-way only)
02/28/2007 WY
Duncan Enterprises IncDEI Enterprises Inc10/17/1996WY
Duncan Oil PartnersDuncan Oil Partners LLC09/20/2013
10/28/2013 
MT
WY
Duncan, Velma M, Estate ofWalter Duncan07/31/1974WY
Duncan, Walter, Estate ofRaymond T. Duncan10/25/1983WY
Dusty Mac Resources IncTransGlobe O&G Corp07/18/1997WY
Duzik, Martha AnneMartha Anne Duzik Trust,
Lee Anne Briscoe & Trudy Burtoft, successor trustees
12/03/2004WY
DWG & CompanyDWG LLC07/25/2004WY
Dyne Exploration CompanyPontotoc Production Company, Inc.05/05/2010
05/18/2010
NM
WY
Dynegy Energy Res LPDynegy Midstream Services LP07/12/1999WY
Dynegy Midstream Services LPTarga Midstream Services LP 
    (rights-of-way only)
PendingWY


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