1 | Acadiana Gas Systems, Inc. | | Oil & Gas Operator | Jan 1999 |
2 | Acadienergy, Inc. | | Oil & Gas Operator | Jun 1988 |
3 | Addison Resources Inc. | | Oil & Gas Operator | Jul 1998 |
4 | Alliance Resources (USA), Inc. | | Oil & Gas Operator | Oct 2002 |
5 | Alta Mesa Services, LP | Houston, TX 77084 | Oil & Gas Operator | Nov 2024 |
6 | Amerada Hess Corporation | Houston, TX 77252 | Oil & Gas Operator | Aug 2013 |
7 | American Exploration Company | Houston, TX 77010 | Oil & Gas Operator | Jan 2000 |
8 | American Exploration Oper. Co. | | Oil & Gas Operator | May 1990 |
9 | American National Petroleum Co. | Houston, TX 77057 | Oil & Gas Operator | Aug 1995 |
10 | Amoco Production Co. | Houston, TX 77253 | Oil & Gas Operator | Jun 2015 |
11 | An-Son Corporation | Oklahoma City, OK 73124 | Oil & Gas Operator | Jan 2006 |
12 | Apache Corporation | Houston, TX 77042 | Oil & Gas Operator | Nov 2024 |
13 | Aquila Energy Resources Corp. | Houston, TX 77042 | Oil & Gas Operator | Nov 2013 |
14 | Argos Properties, Inc. | | Oil & Gas Operator | Apr 1992 |
15 | Aroc (Texas) Inc | Houston, TX 77090 | Oil & Gas Operator | Dec 2014 |
16 | Ashland Exploration Inc | Houston, TX 77218 | Oil & Gas Operator | Nov 2000 |
17 | Ashland Oil, Inc | | Oil & Gas Operator | Dec 2022 |
18 | Aspen Exploration, Inc. | Houston, TX 77002 | Oil & Gas Operator | Dec 2012 |
19 | Badger Energy LLC | | Oil & Gas Operator | Jul 2024 |
20 | Badger Oil Corporation | Lafayette, LA 70505 | Oil & Gas Operator | Nov 2011 |
21 | Badger Oil/Clovelly Oil | | Oil & Gas Operator | Oct 2004 |
22 | Bandera Oil & Gas Inc | Fulshear, TX 77441 | Oil & Gas Operator | Nov 2024 |
23 | BCF Resources, LLC | | Oil Operator | Jun 2023 |
24 | Bean Energy, Inc. | | Oil & Gas Operator | Dec 1986 |
25 | Bean Resources, Inc. | | Oil & Gas Operator | Aug 2006 |
26 | Beta Operating, Inc | | Oil & Gas Operator | May 2001 |
27 | BHP Petroleum (Americas) Inc | Houston, TX 77056 | Oil & Gas Operator | Mar 2015 |
28 | Bintliff Props. LTD. PRTNRSHP. | | Oil & Gas Operator | Dec 1987 |
29 | Bois D'Arc Operating Corporation | Houston, TX 77040 | Oil & Gas Operator | Jan 2000 |
30 | Brammer Engineering, Inc. | Shreveport, LA 71101 | Oil & Gas Operator | Nov 2024 |
31 | Brigham Oil & Gas, L.P. | Austin, TX 78730 | Oil & Gas Operator | Oct 2015 |
32 | Brock Energy Corporation | Houston, TX 77002 | Oil & Gas Operator | Jun 1986 |
33 | Brock Petroleum Corporation | | Oil & Gas Operator | Sep 1984 |
34 | Burk Royalty Company | Wichita Falls, TX 76308 | Oil & Gas Operator | Jan 2002 |
35 | C & K Petroleum Inc | Denver, CO 80202 | Oil & Gas Operator | Apr 1984 |
36 | Cajun Minerals, Inc. | | Oil & Gas Operator | Mar 1997 |
37 | Cajun Operating, Inc. | | Oil & Gas Operator | Jun 2011 |
38 | Callon Offshore Production, Inc. | Natchez, MS 39121 | Oil & Gas Operator | Dec 2005 |
39 | Calyx Exploration & Production | | Oil & Gas Operator | Jul 1991 |
40 | Camex, Inc. | | Oil & Gas Operator | Jun 1992 |
41 | Carrollton Resources Corp. | | Oil & Gas Operator | Sep 2000 |
42 | Cashco Oil Company | Houston, TX 77024 | Oil & Gas Operator | Aug 2003 |
43 | Caskids Operating Company | Houston, TX 77027 | Oil & Gas Operator | Nov 2024 |
44 | Castex Energy, Inc. | Houston, TX 77002 | Oil & Gas Operator | Nov 2024 |
45 | Century Exploration Houston, Inc | The Woodlands, TX 77380 | Oil & Gas Operator | Oct 2011 |
46 | Century Exploration Houston, LLC | Austin, TX 78702 | Oil & Gas Operator | Jan 2016 |
47 | Century Exploration N.O., Inc. | | Oil & Gas Operator | Sep 2011 |
48 | Chesapeake Operating, Inc. | Oklahoma City, OK 73154 | Oil & Gas Operator | Jul 2024 |
49 | Chevron USA Inc | Midland, TX 79706 | Oil & Gas Operator | Nov 2024 |
50 | Cities Service Company | | Oil & Gas Operator | Mar 1983 |
51 | Cities Service Oil & Gas Corp | | Oil & Gas Operator | Mar 1988 |
52 | Cities Service Oil Co. | | Oil & Gas Operator | Dec 1986 |
53 | Clovelly DRLG & Dev Co Inc | | Oil & Gas Operator | Oct 1983 |
54 | Clovelly Oil Co., Inc. | | Oil & Gas Operator | Dec 2008 |
55 | Cockrell Oil Corporation | Houston, TX 77002-7348 | Oil & Gas Operator | Feb 2001 |
56 | Cody Energy LLC | Houston, TX 77024 | Oil & Gas Operator | Jun 2020 |
57 | Cody Energy, Inc. | Houston, TX 77077 | Oil & Gas Operator | Aug 2024 |
58 | Columbia Gas Dev. Corp. | | Oil & Gas Operator | Apr 1996 |
59 | Comstock Oil & Gas -- La, Inc. | | Oil & Gas Operator | Mar 2005 |
60 | Conoco Inc. | Houston, TX 77252 | Oil & Gas Operator | Mar 2015 |
61 | Consolidated Resources Inc | | Oil & Gas Operator | May 2004 |
62 | Contango Operators, Inc. | Houston, TX 77098 | Oil & Gas Operator | Dec 2022 |
63 | Contango Operators, LLC | | Oil & Gas Operator | May 2024 |
64 | Contango Resources Company | | Oil & Gas Operator | Mar 2009 |
65 | Continental Resources, Inc. | Oklahoma City, OK 73126 | Oil & Gas Operator | Nov 2024 |
66 | Cotton Petroleum Corporation | Tulsa, OK 74102 | Oil & Gas Operator | Jan 2005 |
67 | Cox Oil & Gas, Inc. | Dallas, TX 75201 | Oil & Gas Operator | Mar 2014 |
68 | Cox Operating, L.L.C. | | Oil & Gas Operator | Jan 2024 |
69 | Cra International, LTD | | Oil & Gas Operator | Mar 1983 |
70 | Crescent DRLG & DVLPMNT, Inc. | | Oil & Gas Operator | Oct 1992 |
71 | Crosstex Lig, LLC | | Oil Operator | Mar 2014 |
72 | Cuatro Petro Corp. | Richardson, TX 75080 | Oil & Gas Operator | Nov 2024 |
73 | Cypress Production, Inc. | Azle, TX 76020 | Oil & Gas Operator | Nov 2024 |
74 | D. C. Bintliff Et Al | | Oil & Gas Operator | Feb 1987 |
75 | Damson Oil Corporation | Houston, TX 77210 | Oil & Gas Operator | Mar 2005 |
76 | Daniel Oil Company | | Oil & Gas Operator | Jan 1983 |
77 | Darsey Operating Corporation | | Oil & Gas Operator | Sep 1990 |
78 | Denbury Management, Inc. | Dallas, TX 75252 | Oil & Gas Operator | Dec 1999 |
79 | Denbury Onshore, LLC | Plano, TX 75024 | Oil & Gas Operator | Nov 2024 |
80 | Denbury Resources Inc. | Plano, TX 75024 | Oil & Gas Operator | Dec 2003 |
81 | Devon Louisiana Corporation | Houston, TX 77002 | Oil & Gas Operator | Oct 2019 |
82 | DLB Oil & Gas, Inc. | Big Lake, TX 76932 | Oil & Gas Operator | Nov 2024 |
83 | DRD Operating Company | | Oil & Gas Operator | Feb 2014 |
84 | Duer Wagner & Company | Fort Worth, TX 76102 | Oil & Gas Operator | Dec 1998 |
85 | Dynamic Exploration, Inc. | | Oil & Gas Operator | Oct 2003 |
86 | Dynamic Offshore Resources, LLC | Houston, TX 77042 | Oil & Gas Operator | Nov 2024 |
87 | Ed I. Estis | | Oil & Gas Operator | Sep 1998 |
88 | Ed Shea | | Oil Operator | Sep 1990 |
89 | Edwin L Cox-Michael Halbouty | | Oil & Gas Operator | Jun 1986 |
90 | Edwin L. Cox & Berry R. Cox | | Oil & Gas Operator | Jun 1986 |
91 | El Paso Production Company | Houston, TX 77002 | Oil & Gas Operator | Mar 2016 |
92 | Elysium Energy, L.L.C. | Denver, CO 80202 | Oil & Gas Operator | Jun 2019 |
93 | Energy Corp. Of America, Inc. | | Oil & Gas Operator | Aug 1998 |
94 | Energy Recovery Group, LLC | | Oil & Gas Operator | Jul 2008 |
95 | Energy Reserves Group | Houston, TX 770563020 | Oil & Gas Operator | Apr 1996 |
96 | Energy Xxi Gulf Coast, Inc. | | Oil & Gas Operator | Dec 2008 |
97 | Energy Xxi Onshore, LLC | | Oil & Gas Operator | Dec 2023 |
98 | Enervest Operating LLC | Houston, TX 77002 | Oil & Gas Operator | Nov 2024 |
99 | Enex Resources Corporation | Houston, TX 77002 | Oil & Gas Operator | Dec 2009 |
100 | Enlink Lig, LLC | | Oil Operator | Jul 2024 |