1 | 3tec Energy Corporation | Houston, TX 77002 | Oil & Gas Operator | Dec 2019 |
2 | Alta Mesa Services, LP | Houston, TX 77084 | Oil & Gas Operator | Dec 2024 |
3 | Amerada Hess Corporation | Houston, TX 77252 | Oil & Gas Operator | Aug 2013 |
4 | Ampolex (Texas), Inc. | | Oil & Gas Operator | May 1993 |
5 | Anderson Oil Company | Burkburnett, TX 76354 | Oil & Gas Operator | Dec 2015 |
6 | Apache Corporation | Houston, TX 77042 | Oil & Gas Operator | Dec 2024 |
7 | Aquila Energy Resources Corp. | Houston, TX 77042 | Oil & Gas Operator | Nov 2013 |
8 | Arco O & G Co-Div Atl Rich Co | | Oil & Gas Operator | Feb 1994 |
9 | Aroc (Texas) Inc | Houston, TX 77090 | Oil & Gas Operator | Dec 2014 |
10 | Aspect Energy, LLC | Denver, CO 80202 | Oil & Gas Operator | Dec 2024 |
11 | Atc Realty Eight, Inc. | | Oil & Gas Operator | Nov 1988 |
12 | B & T Operating Co. | Dawson, TX 76639 | Oil & Gas Operator | Dec 2024 |
13 | B&L Exploration, L.L.C. | Metairie, LA 70001 | Oil & Gas Operator | Dec 2024 |
14 | Barcoo Exploration Inc. | | Gas Operator | Jan 1993 |
15 | Bellwether Exploration Company | Houston, TX 77010 | Oil & Gas Operator | May 2001 |
16 | Bke-A, L L C | | Oil & Gas Operator | Jul 1999 |
17 | Brigham Oil & Gas, L.P. | Austin, TX 78730 | Oil & Gas Operator | Oct 2015 |
18 | Callon Offshore Production, Inc. | Natchez, MS 39121 | Oil & Gas Operator | Dec 2005 |
19 | Calyx Exploration & Production | | Oil & Gas Operator | Jul 1991 |
20 | Carl Oil & Gas Co.-CNG | | Oil & Gas Operator | Dec 1995 |
21 | Chevron Pipe Line Company | Houston, TX 77001 | Oil Operator | Feb 2015 |
22 | Chevron USA Inc | Midland, TX 79706 | Oil & Gas Operator | Dec 2024 |
23 | Clayton Williams Energy, Inc. | Houston, TX 77070 | Oil & Gas Operator | Apr 2017 |
24 | Cliffs Drilling Company | | Oil & Gas Operator | Dec 1984 |
25 | Cliffwood Production Co. | Houston, TX 77090 | Oil & Gas Operator | Aug 2013 |
26 | Clovelly Oil Co., Inc. | | Oil & Gas Operator | Dec 2008 |
27 | Clovelly Oil Co., Inc. - Ripco | | Oil & Gas Operator | Nov 1991 |
28 | CMS Nomeco Oil & Gas Co. | Jackson, MI 49201 | Oil & Gas Operator | Jan 2015 |
29 | CMS Oil And Gas Company | Jackson, MI 49201 | Oil & Gas Operator | Oct 2002 |
30 | Cockrell Oil Corporation | Houston, TX 77002-7348 | Oil & Gas Operator | Feb 2001 |
31 | Colorado Oil Co., Inc. | | Oil & Gas Operator | Dec 1977 |
32 | Columbia Minerals Corp., Inc. | | Oil & Gas Operator | May 1996 |
33 | Costilla Petroleum Corporation | Midland, TX 79702 | Oil & Gas Operator | Mar 2015 |
34 | Cox Operating, L.L.C. | | Oil & Gas Operator | Jan 2024 |
35 | Crescent Energy Company | | Oil Operator | May 1993 |
36 | Crosstex Lig, LLC | | Oil Operator | Mar 2014 |
37 | Cxy Energy, Inc. | Dallas, TX 75251 | Oil & Gas Operator | Nov 2000 |
38 | Delta Development Co. Inc. | | Oil & Gas Operator | Dec 1988 |
39 | Denbury Management, Inc. | Dallas, TX 75252 | Oil & Gas Operator | Dec 1999 |
40 | Denbury Offshore, Inc. | | Oil & Gas Operator | Nov 2004 |
41 | Denbury Resources Inc. | Plano, TX 75024 | Oil & Gas Operator | Dec 2003 |
42 | Denovo Oil & Gas, Inc. | Houston, TX 77210 | Oil & Gas Operator | May 1995 |
43 | Despot Exploration, Inc. | | Oil & Gas Operator | Apr 1990 |
44 | Devon Energy Corporation | Oklahoma City, OK 73102 | Oil & Gas Operator | Dec 2009 |
45 | Dixie Well Service, Inc. | | Oil & Gas Operator | Jul 1995 |
46 | DKM Resources, Inc. | Tulsa, OK 74136 | Oil & Gas Operator | Sep 2011 |
47 | Enbridge P/LS (La Intra.)L.L.C. | | Oil Operator | Oct 2009 |
48 | Energen Resources Maq Inc | Birmingham, AL 35203 | Oil & Gas Operator | Sep 2000 |
49 | Energy Development Corporation | Houston, TX 77067 | Oil & Gas Operator | Dec 2023 |
50 | Energy Xxi Gom, LLC | | Oil & Gas Operator | Dec 2023 |
51 | Equitable Petroleum Corp. | | Oil & Gas Operator | Jan 1999 |
52 | Felmont Oil Corporation | Walnut Creek, CA 94596-3568 | Oil & Gas Operator | Feb 1990 |
53 | FMP Operating Co., LTD. PTN. | | Oil & Gas Operator | Mar 1990 |
54 | Forest Oil Corporation | Houston, TX 77002 | Oil & Gas Operator | Mar 2015 |
55 | Fpco Oil & Gas Co. | New Orleans, LA 70160 | Oil & Gas Operator | Aug 2024 |
56 | Gas Producing Enterprises Inc. | | Oil & Gas Operator | Oct 1985 |
57 | Goldking Prod. Co. | Houston, TX 77002 | Oil & Gas Operator | Apr 1998 |
58 | Graham Royalty LTD | Covington, LA 70434 | Oil & Gas Operator | Jul 2007 |
59 | Gulf Oil Corp. | Denver, CO 80201-0599 | Oil & Gas Operator | Dec 2014 |
60 | Gulf Outlet Resources, L.L.C. | | Oil & Gas Operator | Apr 2008 |
61 | Gulf Production Company, Inc. | | Oil & Gas Operator | Jul 2024 |
62 | Gulf South Pipeline Company, LP | Houston, TX 77046 | Oil & Gas Operator | Dec 2020 |
63 | Gulf States Production Company | Houston, TX 77027 | Oil & Gas Operator | Aug 1997 |
64 | Hall-Houston Oil Company | Houston, TX 77002 | Oil & Gas Operator | Oct 2002 |
65 | Hess Corporation, A De Corp. | | Oil & Gas Operator | Oct 2006 |
66 | Houston Energy & Dev. Inc. | | Oil & Gas Operator | Mar 1994 |
67 | Huffco Petroleum Corporation | | Oil & Gas Operator | Jul 1988 |
68 | Integrated Exploration & Production LLC | | Oil & Gas Operator | May 2024 |
69 | Intercoast Oil And Gas Company | Tulsa, OK 74136 | Oil & Gas Operator | Jun 1997 |
70 | Ip Petroleum Company, Inc. | Houston, TX 77210 | Oil & Gas Operator | Mar 2008 |
71 | KCS Medallion Resources, Inc. | Tulsa, OK 74136 | Oil & Gas Operator | Nov 2018 |
72 | KCS Resources, Inc. | Houston, TX 77002 | Oil & Gas Operator | May 2010 |
73 | Kestrel Resources, Inc. | Dallas, TX 75204 | Oil & Gas Operator | Jan 2017 |
74 | Key Operating Co., Inc. | Duncan, OK 73534-1284 | Oil & Gas Operator | Jun 2024 |
75 | Koch Exploration Company | Houston, TX 77046 | Oil & Gas Operator | Aug 2024 |
76 | Koch Gateway Pipeline Company | | Oil & Gas Operator | Feb 2001 |
77 | La Intrastate Gas Co LLC | | Oil Operator | Apr 2004 |
78 | La. Land & Expl. Co. | | Oil & Gas Operator | Dec 2010 |
79 | Lake A, LTD. | | Oil Operator | May 1998 |
80 | Legacy Operating Company | | Oil & Gas Operator | Aug 1992 |
81 | Linder Oil Company,A Partnership | Shreveport, LA 71136 | Oil & Gas Operator | Dec 2024 |
82 | Llog Expl. Co. | Metairie, LA 70005 | Oil & Gas Operator | Jan 2003 |
83 | Llog Exploration Company, L.L.C. | | Oil & Gas Operator | Sep 2024 |
84 | Lobo Operating, Inc. | Houston, TX 77077 | Oil & Gas Operator | Jun 2024 |
85 | Louisiana Intrastate Gas Corp. | | Oil Operator | Feb 1994 |
86 | M P O'Meara, Jr. Inc. | | Oil & Gas Operator | Sep 2000 |
87 | M. P. O'Meara Oil Co. | | Oil & Gas Operator | Apr 1991 |
88 | Manti Exploration Operating LLC | Corpus Chrsti, TX 78403 | Oil & Gas Operator | Feb 2015 |
89 | Manti Operating Company | Covington, LA 70435 | Oil & Gas Operator | Dec 2024 |
90 | Maritech Resources, LLC | | Oil & Gas Operator | May 2011 |
91 | Martin Exploration Co. | | Oil & Gas Operator | Apr 1986 |
92 | McCormick-Bintliff | | Oil & Gas Operator | Feb 1984 |
93 | McMoran Exploration Company | | Oil & Gas Operator | May 1985 |
94 | McMoran Production Co. | | Oil & Gas Operator | May 1985 |
95 | Medallion Production Company | Tulsa, OK 74103 | Oil & Gas Operator | May 1997 |
96 | Milagro Exploration, LLC | Houston, TX 77010 | Oil & Gas Operator | Aug 2018 |
97 | Mobley Oil Company, Inc. | | Oil & Gas Operator | Feb 1990 |
98 | Mullen Exploration Inc | | Oil & Gas Operator | Dec 2002 |
99 | Natomas North America Inc | | Oil & Gas Operator | Aug 1993 |
100 | Natural Resource MGMT. Corp. | | Oil & Gas Operator | Jun 1989 |