1 | 442 Operating La, LLC | | Oil & Gas Operator | Jun 2024 |
2 | Ada Oil Exploration Corp | | Oil & Gas Operator | Jan 1986 |
3 | Amalgamated Bonanza Petr. LTD. | | Oil & Gas Operator | Apr 1980 |
4 | Amerada Hess Corporation | Houston, TX 77252 | Oil & Gas Operator | Aug 2013 |
5 | Amerada Hess-Ethyl Corporation | | Oil & Gas Operator | Sep 1990 |
6 | American Explorer, Inc. | Lafayette, LA 70505 | Oil & Gas Operator | Jan 1999 |
7 | American Petrofina Co Of Texas | | Oil & Gas Operator | Jun 1985 |
8 | American Quasar-Southland Roy. | | Oil & Gas Operator | Oct 1980 |
9 | Amoco Production Co. | Houston, TX 77253 | Oil & Gas Operator | Jun 2015 |
10 | Anadarko Petroleum Corporation | Houston, TX 77251 | Oil & Gas Operator | Aug 2024 |
11 | Anderson Exploration Co., Inc. | | Oil & Gas Operator | Sep 2023 |
12 | Anr Pipeline Company | Houston, TX 77002 | Oil & Gas Operator | Jul 2024 |
13 | Anr Production Company | Houston, TX 77046 | Oil & Gas Operator | Aug 2017 |
14 | Apache Corporation | Houston, TX 77042 | Oil & Gas Operator | Nov 2024 |
15 | Apd Company | | Oil & Gas Operator | Apr 1987 |
16 | Apollo Energy, L.L.C. | | Oil & Gas Operator | Jul 2018 |
17 | Arco O & G Co-Div Atl Rich Co | | Oil & Gas Operator | Feb 1994 |
18 | Aroc (Texas) Inc | Houston, TX 77090 | Oil & Gas Operator | Dec 2014 |
19 | Array Operating, LLC | | Oil & Gas Operator | Mar 2017 |
20 | Ashland Exploration Inc | Houston, TX 77218 | Oil & Gas Operator | Nov 2000 |
21 | B K L Incorporated | Morton, TX 79346 | Oil & Gas Operator | Jun 2002 |
22 | B. & L. Oil Company | Seguin, TX 78155 | Oil & Gas Operator | Nov 2024 |
23 | B. M. Hester | | Oil & Gas Operator | Mar 1993 |
24 | Badger Energy LLC | | Oil & Gas Operator | Jul 2024 |
25 | Badger Oil Corporation | Lafayette, LA 70505 | Oil & Gas Operator | Nov 2011 |
26 | Bargo Energy Corporation | | Oil & Gas Operator | Apr 2000 |
27 | Barton Oil & Gas Co., Inc. | | Oil & Gas Operator | Sep 1993 |
28 | Baruch-Foster Corporation | Oklahoma City, OK 73126-6770 | Oil & Gas Operator | Feb 2001 |
29 | Bayou Bouillon Operating LLC | | Oil & Gas Operator | Jun 2024 |
30 | BCF Resources, LLC | | Oil Operator | Jun 2023 |
31 | Biglane Operating Company | | Oil & Gas Operator | Aug 2024 |
32 | BKV Ventures, LLC | | Oil & Gas Operator | Nov 2020 |
33 | Bopco, L.P. | Midland, TX 79701 | Oil & Gas Operator | Nov 2024 |
34 | Borden, Inc. | Columbus, OH 43215 | Oil & Gas Operator | Mar 1990 |
35 | BP Exploration Inc | | Oil & Gas Operator | May 1993 |
36 | Bridas Energy USA, Inc. | The Woodlands, TX 77380 | Oil & Gas Operator | Aug 2008 |
37 | Bristol Resources Corporation | Tulsa, OK 74170 | Oil & Gas Operator | Feb 2022 |
38 | Britlind Oil LLC | | Oil & Gas Operator | Dec 2020 |
39 | C & M Operating Company | Graham, TX 76450 | Oil & Gas Operator | Jul 2024 |
40 | C. D. Pierce | | Oil Operator | Mar 1991 |
41 | C.F. Braun & Company | | Oil & Gas Operator | Dec 1986 |
42 | Cabot Petroleum Corporation | Englewood, CO 80111-2529 | Oil & Gas Operator | Dec 2004 |
43 | Caddo Management, Inc | Shreveport, LA 71101 | Oil & Gas Operator | Jun 2024 |
44 | Cajun Minerals, Inc. | | Oil & Gas Operator | Mar 1997 |
45 | Callon Offshore Production, Inc. | Natchez, MS 39121 | Oil & Gas Operator | Dec 2005 |
46 | Callon Petroleum Company | Natchez, MS 39120 | Oil & Gas Operator | Oct 2002 |
47 | Callon Petroleum Operating Co | Houston, TX 77042 | Oil & Gas Operator | Jul 2024 |
48 | Calyx Exploration & Production | | Oil & Gas Operator | Jul 1991 |
49 | Campbell Energy Corp. | | Oil & Gas Operator | May 1992 |
50 | Cardinal Oil & Gas, Inc. | | Oil & Gas Operator | Jun 1995 |
51 | Carl Oil & Gas Co. | Bakersfield, CA 93309 | Oil & Gas Operator | Dec 1995 |
52 | Caskids Operating Company | Houston, TX 77027 | Oil & Gas Operator | Nov 2024 |
53 | Celeron Oil & Gas Company | | Oil & Gas Operator | Dec 1987 |
54 | Cenergy Exploration Company | Dallas, TX 75231 | Oil & Gas Operator | Sep 2000 |
55 | Centura Inc | | Oil & Gas Operator | Feb 1985 |
56 | Chaparral Energy, Inc. | Oklahoma City, OK 73114 | Oil & Gas Operator | Dec 2009 |
57 | Chaparral Energy, L.L.C. | Oklahoma City, OK 73142 | Oil & Gas Operator | Nov 2024 |
58 | Charing Cross Properties | | Oil Operator | Aug 1995 |
59 | Chevron USA Inc | Midland, TX 79706 | Oil & Gas Operator | Nov 2024 |
60 | CNG Producing Company | New Orleans, LA 70112 | Oil & Gas Operator | Dec 2015 |
61 | Coalinga Corporation | Houston, TX 77002 | Oil & Gas Operator | May 1999 |
62 | Cody Energy, Inc. | Houston, TX 77077 | Oil & Gas Operator | Aug 2024 |
63 | Columbia Gas Dev. Corp. | | Oil & Gas Operator | Apr 1996 |
64 | Comstock Oil & Gas -- La, Inc. | | Oil & Gas Operator | Mar 2005 |
65 | Condor Petroleum Corporation | | Oil & Gas Operator | Aug 2020 |
66 | Conoco Inc. | Houston, TX 77252 | Oil & Gas Operator | Mar 2015 |
67 | Cox Oil & Gas, Inc. | Dallas, TX 75201 | Oil & Gas Operator | Mar 2014 |
68 | Creek Operating Company, Inc. | Dallas, TX 75205 | Oil & Gas Operator | Sep 1998 |
69 | Cygnus Producing Corporation | | Oil & Gas Operator | Feb 1990 |
70 | Cypress Oil Company, Inc. | | Oil & Gas Operator | Aug 2003 |
71 | Cypress Production, Inc. | Azle, TX 76020 | Oil & Gas Operator | Nov 2024 |
72 | D. B. McClinton | | Oil & Gas Operator | Jun 1992 |
73 | D. C. Bintliff-McCormick O&G | | Oil & Gas Operator | Oct 1983 |
74 | Dalnor Corporation | | Oil & Gas Operator | Nov 2010 |
75 | Daniel Oil Company | | Oil & Gas Operator | Jan 1983 |
76 | Darsey Operating Corporation | | Oil & Gas Operator | Sep 1990 |
77 | Davis Oil Company | Pawhuska, OK 74056 | Oil & Gas Operator | Jun 2018 |
78 | Deblin Oil & Gas, Inc | | Oil & Gas Operator | Aug 1995 |
79 | Denbury Management, Inc. | Dallas, TX 75252 | Oil & Gas Operator | Dec 1999 |
80 | Denbury Onshore, LLC | Plano, TX 75024 | Oil & Gas Operator | Nov 2024 |
81 | Denbury Resources Inc. | Plano, TX 75024 | Oil & Gas Operator | Dec 2003 |
82 | Dominion Exploration & Production Inc | Houston, TX 77060 | Oil & Gas Operator | Apr 2015 |
83 | Drew Cornell, Inc. | | Oil & Gas Operator | Jul 1992 |
84 | Drillmar Energy, Inc. | Houston, TX 77079 | Oil & Gas Operator | Nov 2014 |
85 | Drillmar Operating Company | Houston, TX 77019 | Oil & Gas Operator | Jun 2013 |
86 | Dune Operating Company | Dallas, TX 75201 | Oil & Gas Operator | Jun 2016 |
87 | Dynamic Exploration PTRS, LLC | | Oil & Gas Operator | Jul 2024 |
88 | E & E Production Company, Inc. | | Oil & Gas Operator | Dec 2004 |
89 | E. & S. Drilling Company | | Oil & Gas Operator | Feb 1995 |
90 | Ed I. Estis | | Oil & Gas Operator | Sep 1998 |
91 | Edwin L. Cox | | Oil & Gas Operator | May 1986 |
92 | Edwin L. Cox & Berry R. Cox | | Oil & Gas Operator | Jun 1986 |
93 | Eex Corporation | Houston, TX 77060 | Oil & Gas Operator | Feb 2000 |
94 | Elad Petroleum Corporation | | Oil Operator | Jun 2005 |
95 | Energy Corp. Of America, Inc. | | Oil & Gas Operator | Aug 1998 |
96 | Energy Development Corporation | Houston, TX 77067 | Oil & Gas Operator | Dec 2023 |
97 | Energy Research & Dev. Corp. | | Oil & Gas Operator | Feb 1998 |
98 | Energy Sources, Inc. | | Oil & Gas Operator | Nov 1990 |
99 | Enervest Operating LLC | Houston, TX 77002 | Oil & Gas Operator | Nov 2024 |
100 | Enserch Exploration Inc | Dallas, TX 75206 | Oil & Gas Operator | Apr 2015 |