Corporate Name Change & Merger Index Current As Of: March 12, 2020 Issuing Original or Previous Company Name Current Company Name Date of Memo State Office 08/08/2018 1986 STEA Ltd Partnership I Program Acquisition Company 05/21/2001 WY 1986 STEA Ltd Partnership II Program Acquisition Company 05/21/2001 WY 1987-STEA Ltd Partnership Program Acquisition Company 05/21/2001 WY 1987-II STEA Ltd Partnership Program Acquisition Company 05/21/2001 WY 1987III STEA Ltd Partnership Program Acquisition Company 05/21/2001 WY 1987-IV STEA Ltd Partnership Program Acquisition Company 05/21/2001 WY 1987-VI STEA Ltd Partnership Program Acquisition Company 05/21/2001 WY 1988-I TEAI Ltd Partnership Program Acquisition Company 05/21/2001 WY 1988III TEAI Ltd Partnership Program Acquisition Company 05/21/2001 WY 1988IV TEAI Ltd Partnership Program Acquisition Company 05/21/2001 WY 1988-V TEAI Ltd Partnership Program Acquisition Company 05/21/2001 WY 1988-VI TEAI Ltd Partnership Program Acquisition Company 05/21/2001 WY 1988VII TEAI Ltd Partnership Program Acquisition Company 05/21/2001 WY 1989III TEAI Ltd Partnership Program Acquisition Company 05/21/2001 WY 3TECH Energy Corp PXP Gulf 07/17/2003 NM 44 Canyon, L.L.C. Pure Resources, LP 06/08/2006 NM A 1 Corporate Name Change & Merger Index Current As Of: March 12, 2020 Issuing Original or Previous Company Name Current Company Name Date of Memo State Office AA Development Corporation AA Energy Corp 02/11/1985 WY Amended Decision-Additional Lease 10/29/1985 WY AA Energy Corp AMR Energy Corp 02/11/1985 WY Amended Decision-Additional Lease 10/29/1985 WY Aberdeen American Petro Aberdeen Petro (USA) Inc 04/10/1990 WY 05/14/2013 CO Abraxas Operating, LLC Abraxax Petroleum Corporation 08/26/2013 WY Abraxas Production Co Abraxas Petroleum Corp 11/30/1999 WY ABO Petroleum Corporation EOG A Resources Inc. 12/01/2016 NM 12/14/2016 WY Ackerman, R.J Ackerman, Phyllis L 10/23/1991 WY Adobe Oil & Gas Corp Adobe Resources Corp 03/06/1986 WY (Amended Decision) 05/09/1986 WY (Amended Decision) 12/10/1986 WY Adobe Petroleum Corp Adobe Resources Corp 05/15/1987 WY (Amended Decision) 05/04/1995 WY Adolph Coors Brewing Company Molson Coors Brewing Company 08/27/2007 CO (Wyoming Decision) 12/19/2007 WY Adobe Resources Corp Santa Fe Energy Resources Inc 05/04/1995 WY AEC Gathering Services (USA) Inc EnCana Gathering Services (USA) Inc 05/23/2002 MT AEC Gulf of Mexico Inc EnCana Gulf of Mexico Inc 05/23/2002 MT AEC International (USA) Inc EnCana International (USA) Inc 05/23/2002 MT AEC Marketing (USA) Inc EnCana Marketing (USA) Inc 05/23/2002 MT 2 Corporate Name Change & Merger Index Current As Of: March 12, 2020 Issuing Original or Previous Company Name Current Company Name Date of Memo State Office AEC Oil & Gas (USA) Inc EnCana Oil & Gas (USA) Inc 05/23/2002 MT AEC Oil & Gas Co Ltd EnCana Oil & Gas Co Ltd 05/23/2002 MT AEC Oil & Gas Partnership EnCana Oil & Gas Partnership 05/23/2002 MT AEC Pipelines (USA) Inc EnCana Pipelines (USA) Inc 05/23/2002 MT AEC Storage & Hub Services Inc EnCana Gas Storage Inc 05/23/2002 MT AEC West Ltd Encana Pipelines Ltd 05/23/2002 MT AEC Pipelines Ltd EnCana Pipelines Ltd 05/23/2002 MT 12/28/2010 MT Agate Petroleum, Inc. St Mary Land & Exploration Company 01/04/2011 WY AGM Corp Diamond Shamrock 03/18/1987 WY 03/17/2010 NM Aguasal Holdings LLC Henry Petroleum LP 03/24/2010 WY Ahrens, Oma B Oma B. Ahrens Estate to Bart Patrick Yates as successor- 03/03/2006 WY in-interest CO AIRCO, Inc. The BOC Group, Inc. 06/06/2008 WY 02/12/2014 06/06/2008 CO AIRCO Delaware, Inc. AIRCO, Inc. 02/12/2014 WY Airtouch Communications Inc Vodaphone Airtouch PLC 02/24/2004 WY Airtouch Communications Inc Vodaphone America Asia Inc 02/24/2004 WY AKI Oil and Gas Corporation C&K Petroleum Inc 02/18/1981 NM 3 Corporate Name Change & Merger Index Current As Of: March 12, 2020 Issuing Original or Previous Company Name Current Company Name Date of Memo State Office Akin Beene Resources LLC Blackbeard Operating East LLC 08/15/2016 NM 08/23/2016 WY Alberta Energy Co Ltd PanCanadian Energy Corp 05/23/2002 MT Alenco Oil & Gas ND Inc AEC Oil & Gas USA Inc 11/16/2001 WY Alliance Real Estate, Inc. Kimmeridge Real Estate, Inc. 12/09/2014 WY Alene Oil Co Tenkay Resources, Inc. 12/18/1989 WY Alliance Exploration & Prod Co Allco Exploration Company 08/04/1982 WY Alpetco Inc McAlester Fuel Co 04/29/1977 MT 07/08/1977 WY Alta Energy Corp Devon Energy Operating Corp 04/10/1995 WY Altex Resources Company Altex Energy Corporation (New Mexico Decision, oil & gas leases only) 02/20/2008 NM (Wyoming cover memorandum, oil & gas leases only) 03/10/2008 WY Amacan Resources Corp Spire International Corp 01/02/1997 MT Amax Oil & Gas Inc Union Pacific O&G Co 01/18/1995 WY 03/30/1995 NM Amax Petroleum Corp Nemidco, Inc. 12/29/1994 WY Bond Decision—Rider Added 01/12/1995 WY Amber America Resources Inc American Banner Res Inc 06/18/1980 WY Ambrose Lee, Jr. Estate of Ambrose Lee, Jr., Austin R. Lee, Se. Executor 07/11/2008 WY Amcana Oil Corporation I.C. Gas Amcana 12/12/1984 WY Amended Decision-Additional Lease 02/13/1985 WY Amco Oil Corporation Associated Royalty Company 08/16/1973 WY 4 Corporate Name Change & Merger Index Current As Of: March 12, 2020 Issuing Original or Previous Company Name Current Company Name Date of Memo State Office Amaricen General Partnership Amaricen Holdings, L.P. 10/12/2007 WY Southern Minerals Corporation Montana Notice (Oil and Gas Leases Only) 05/06/2008 MT Wyoming Cover Memorandum America Energy Corporation (Oil & Gas Leases Only) 05/12/2008 WY Amerada Hess Corporation Hess Corporation (Oil & Gas Leases Only) 07/11/2006 MT (Rights-of-Way Grants Only) Pending WY Ameriada Petroleum Corp Amerada Hess Corp 10/20/1969 WY American Cometra, Inc Pearlstone Energy Partners LLC 10/21/2005 MT 06/18/2013 NM American Energies Corporation Trex AEC, LLC 08/26/2013 WY American Exploration Co Louis Dreyfus Natural Gas Corp 07/29/1998 WY (Amended Decision) 08/06/1998 WY (Amended Decision) 01/10/2007 MT (Amended Decision) 01/23/2007 WY American Energy Co Meahger O&G, Prop Inc 03/14/1998 WY American Minerals Mgmt Inc American Res Mgmt Corp 03/10/1975 WY (Amended Decision) 01/23/1976 WY (CO State Office Decision) 04/04/1977 CO American National Petroleum Company Goodrich Petroleum of LA 11/04/1999 WY American Natural Gas Prod Co ANR Production Co 10/14/1980 WY 07/13/2011 MT American Oil & Gas, Inc. Hess Bakken Investments I Corporation 07/22/2011 WY 5 Corporate Name Change & Merger Index Current As Of: March 12, 2020 Issuing Original or Previous Company Name Current Company Name Date of Memo State Office American Petrofina Company of Texas Fina Oil & Chemical Co 06/24/1986 WY 05/11/1987 WY 10/11/1990 WY American Petrofina Inc Fina Inc 05/07/2002 MT American Petrofina Marketing Inc American Petrofina Company of Texas 06/28/1985 WY (Certificate Only) American Prod Partnership Ltd-III American Prod Partnership III-Ltd 06/21/1991 WY American Prod Partnership Ltd IV American Prod Partnership-IV Ltd 06/21/1994 WY American Quasar Petro Co of NM Wolverine Exploration Co of Delaware 10/16/1987 WY American Trading & Production Corporation Tema Oil and Gas LLC 09/4/2012 NM 10/30/2012 WY Americomm Resources Corp Empire Petro Corp 10/25/2001 WY Austral Oil Company 01/10/2007 MT Amerox Acquisition Corp (Oil and Gas Leases Only) 01/23/2007 WY Aminoil Inc Phillips Oil Company 06/04/1985 WY Aminoil Resources Inc Aminoil USA Inc 02/15/1977 WY Aminoil Inc 02/07/1984 WY Aminoil USA Inc (Amended Decision) 08/22/1985 WY 08/05/2008 NM Amistad Land & Cattle Co., Inc. Spike Box Land & Cattle Company, Inc. 08/22/2008 WY Amoco Production Company BP America Production Co 01/16/2002 WY AMR Energy Corp TOGA Petroleum Company 08/27/1986 WY Anadarko E&P Company LP Anadarko E&P Company LLC 02/13/2013 WY 6 Corporate Name Change & Merger Index Current As Of: March 12, 2020 Issuing Original or Previous Company Name Current Company Name Date of Memo State Office Corrected Notice 02/25/2013 WY Anadarko LOGC Company LLC Anadarko E&P Onshore, LLC 04/30/2013 WY Anadarko Titleholder 1, LLC Anadarko E&P Onshore, LLC 05/08/2014 WY Anderman Oils Ltd 10/10/1997 WY Anderman Oils LLC (Amended Decision) 07/02/1998 WY Anderman Oils Wyoming, Inc. Heritage Energy Resources, Inc 10/21/2005 WY Anderman Operating Company Anderman/Smith Operating Co 01/20/1988 WY Anderson, Ada A. Estate of Ada A. Anderson 01/13/2014 WY Estate of Donald B. Anderson, Jr., Rebecca Jo Gregg Anderson, Donald B. Jr. Anderson sole heir to the estate. 08/16/2013 WY Anderson, Evelyn B. Estate of Evelyn B. Anderson 01/10/2014 WY Anderson, Georgia, Estate of Georgia F. Anderson Trust, James H. Anderson, trustee 06/25/2003 WY Anderson, Paul D. Estate of Paul D. Anderson 09/20/2012 WY Anderson, Payton V. Estate of Payton V. Anderson 09/24/2012 WY Anderson, Warren D.