U.S. DEPARTMENT OF THE INTERIORBUREAU OF LAND MANAGEMENT
Wyoming
 
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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
Occidental Oil and Gas ( USA), Inc.

Cities Service Oil and Gas Corp 
    Amended Decision-Additional Lease

06/06/1986
06/12/1986

WY
WY

Ocean Energy IncDevon Louisiana Corp08/20/2003NM
Ocean Energy IncSeagull Energy Corporation02/12/2003NM
Ocean Energy Resources IncOcean Energy Inc
    (Amended Decision)
11/27/2001
02/12/2003
NM
Odessa Natural Corporation

EPX Company(Original Decision)

    Amended Decision-ROW

04/21/1981
08/12/1981
10/06/1981
NM
WY
WY
Ogle, Burdette A.Ogle Enterprises, LLC 03/10/2011WY
OGX Acreage Fund LP   COG Acreage LP02/26/2013
03/11/2013
NM
WY
Oil Devl Co of TXSanta Fe Energy Company05/04/1995WY
Oilix Industries, IncAdobe Oil and Gas Corporation02/28/1983WY
Okie Crude CompanyWOC Acqstn Company01/23/1995WY
Oklahoma Basic Energy CorporationPontotoc Production Company, Inc.05/05/2010
05/18/2010
NM
WY
Oklahoma Industrial Energies IncNew Cambridge Corp06/18/1985WY
Oklahoma Pacific LtdPosse Energy Ltd02/03/1997MT
Oliver, Daniel Estate of Daniel Oliver08/23/2012WY
Olson, Emil, Estate ofFern E Olson02/12/2003WY
Omni Resources, Inc.

Tresor Petroleum, Inc.

12/07/1981

WY

ONG Exploration, Inc.

ONEOK Exploration Company

06/20/1986

WY

OOGC America, Inc.  OOGC America, LLC

04/16/2014

WY

OPCO Production 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

Optigas, Inc.  Optigas LLC

02/09/2012

WY

Oregon Short Line Railroad CoUnion Pacific Railroad Co01/16/2004WY
Oryx Energy CompanyKerr-McGee O&G, Onshore LLC08/23/1999ES*
Osborn, William B., Estate ofRowena Simpson Osborn06/12/2003WY
Overland Trail & Cattle Co LLC, The

The Overland Trail Cattle Co LLC

01/12/2005

WY

Overthrust Pipeline Company

Questar Overthrust Pipeline Company 
    (Rights-of-Way Grants Only)

WithdrawnWY
Oxford Consolidated IncOxford Exploration Co10/18/1993WY
Oxoco Expl & Prod IncHawthorne Oil & Gas Corp04/04/1988WY
Oxtex IncHawthorne Oil & Gas Corp04/04/1988WY
OXY NM LP OXY USA WTP LP  08/05/2013
08/27/2013
NM
WY
Oxy Petroleum Inc.

Cities Service Oil and Gas Corp 

    Amended Decision-Additional Lease

02/10/1986
06/06/1986
06/12/1986

CA
WY
WY

Oxy Resources California LLCVintage Production California LLC  05/06/2011
05/11/2011
ES
WY
* Eastern States Office, Springfield VA

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Last updated: 05-20-2014