1 | 442 Operating La, LLC | | Oil & Gas Operator | Jun 2024 |
2 | Agip Petroleum Co., Inc. | | Oil & Gas Operator | Jan 2003 |
3 | Aldine Oil And Gas, LP | Houston, TX 77060 | Oil & Gas Operator | Dec 2024 |
4 | Alegre Energy, Inc. | San Antonio, TX 78216 | Oil & Gas Operator | Dec 2024 |
5 | Alliance Operating Corporation | | Oil & Gas Operator | Jan 1995 |
6 | Alltex Exploration, Inc. | Houston, TX 77056 | Oil & Gas Operator | Dec 2024 |
7 | Alpine Energy, Inc. | | Oil & Gas Operator | Dec 1999 |
8 | Alpine Expl. Companies, Inc. | | Oil & Gas Operator | Jan 2024 |
9 | Amax Petroleum Corporation | Houston, TX 77042 | Oil & Gas Operator | Dec 2012 |
10 | Amerada Hess Corporation | Houston, TX 77252 | Oil & Gas Operator | Aug 2013 |
11 | American Exploration Company | Houston, TX 77010 | Oil & Gas Operator | Jan 2000 |
12 | American Petrofina Co Of Texas | | Oil & Gas Operator | Jun 1985 |
13 | American Quasar Petroleum Co. | Fort Worth, TX 76102 | Oil & Gas Operator | Apr 2014 |
14 | Amoco Production Co. | Houston, TX 77253 | Oil & Gas Operator | Jun 2015 |
15 | Anadarko Petroleum Corporation | Houston, TX 77251 | Oil & Gas Operator | Sep 2024 |
16 | Anderson Exploration Co., Inc. | | Oil & Gas Operator | Sep 2023 |
17 | Anderson Producing, Inc. | Houston, TX 77057 | Oil & Gas Operator | Sep 2013 |
18 | Anglo Production Company | | Oil & Gas Operator | Nov 1983 |
19 | Anr Pipeline Company | Houston, TX 77002 | Oil & Gas Operator | Jul 2024 |
20 | Anr Production Company | Houston, TX 77046 | Oil & Gas Operator | Aug 2017 |
21 | Apache Corporation | Houston, TX 77042 | Oil & Gas Operator | Dec 2024 |
22 | Apache Shelf, Inc. | Houston, TX 77056 | Oil & Gas Operator | Jan 2014 |
23 | Apexco-McCormick-Coastal | | Oil & Gas Operator | Dec 1977 |
24 | Apollo Energy Operating Co, LP | Lake Charles, LA 70601 | Oil & Gas Operator | Jun 2024 |
25 | Apollo Energy Operating, LP | | Oil & Gas Operator | Mar 2011 |
26 | Araxas Exploration, Inc. | The Woodlands, TX 77380 | Oil & Gas Operator | Apr 1998 |
27 | Arco O & G Co-Div Atl Rich Co | | Oil & Gas Operator | Feb 1994 |
28 | Ashland Exploration Inc | Houston, TX 77218 | Oil & Gas Operator | Nov 2000 |
29 | Aspect Energy, LLC | Denver, CO 80202 | Oil & Gas Operator | Dec 2024 |
30 | Atlantic & Gulf Petroleum Co. | Houston, TX 77002 | Gas Operator | Mar 1991 |
31 | Auro USA, Inc. | | Oil Operator | Jun 2024 |
32 | Auster Oil And Gas, Inc. | | Oil & Gas Operator | Mar 1989 |
33 | Austral Oil Company Incorporated | Sulphur, LA 70663 | Oil & Gas Operator | Mar 2008 |
34 | Azimuth Energy, LLC | Denver, CO 80203 | Oil & Gas Operator | Sep 2006 |
35 | Badger Oil Corporation | Lafayette, LA 70505 | Oil & Gas Operator | Nov 2011 |
36 | Ballard Exploration Company,Inc. | Houston, TX 77002 | Oil & Gas Operator | Dec 2024 |
37 | Basf Corporation | Houston, TX 77027 | Oil & Gas Operator | Nov 1992 |
38 | Bean Resources, Inc. | | Oil & Gas Operator | Aug 2006 |
39 | Beem Oil & Gas Company | | Oil & Gas Operator | Dec 1994 |
40 | Bel Oil Corporation | Jenks, OK 74037 | Oil & Gas Operator | Jun 2005 |
41 | Bellwether Exploration Company | Houston, TX 77010 | Oil & Gas Operator | May 2001 |
42 | BHP Billiton Petro (KCS Resources), LLC | | Oil & Gas Operator | Jul 2019 |
43 | BHP Petroleum (Americas) Inc | Houston, TX 77056 | Oil & Gas Operator | Mar 2015 |
44 | Black Diamond Production Co. | | Oil & Gas Operator | Mar 2021 |
45 | Blakely Land & Exploration Co. | | Oil & Gas Operator | Apr 1991 |
46 | Boca Production Inc | | Oil & Gas Operator | Jun 2002 |
47 | Borden, Inc. | Columbus, OH 43215 | Oil & Gas Operator | Mar 1990 |
48 | BP America Production Company | Denver, CO 80202 | Oil & Gas Operator | Oct 2024 |
49 | BP Exploration Inc | | Oil & Gas Operator | May 1993 |
50 | BPX (KCS Resources), LLC | | Oil & Gas Operator | Feb 2022 |
51 | BPX Operating Company | Denver, CO 80202 | Oil & Gas Operator | Dec 2024 |
52 | Brammer Engineering, Inc. | Shreveport, LA 71101 | Oil & Gas Operator | Dec 2024 |
53 | Breakthrough Ventures, LLC | | Oil Operator | Jun 2024 |
54 | Brechtel Energy Corporation | | Oil & Gas Operator | Sep 2008 |
55 | Breton Sound Holdings, LLC | | Oil & Gas Operator | May 2024 |
56 | Bristol Resources Corporation | Tulsa, OK 74170 | Oil & Gas Operator | Feb 2022 |
57 | British-Borneo Exploration Inc | | Oil & Gas Operator | Dec 1999 |
58 | Burlington Res Offshore Inc | | Oil & Gas Operator | Oct 2002 |
59 | Burlington Res Oil & Gas Co | | Oil & Gas Operator | Dec 2000 |
60 | Burlington Res Oil & Gas LP | Houston, TX 77079 | Oil & Gas Operator | Sep 2024 |
61 | Burton-Sutton Oil Co., Inc. | | Oil & Gas Operator | Apr 1988 |
62 | C & F Petroleum | | Oil & Gas Operator | Apr 1991 |
63 | C & K Offshore Company | | Oil & Gas Operator | Oct 1980 |
64 | C & K Petroleum Inc | Denver, CO 80202 | Oil & Gas Operator | Apr 1984 |
65 | C.F. Braun & Company | | Oil & Gas Operator | Dec 1986 |
66 | Callon Petroleum Company | Natchez, MS 39120 | Oil & Gas Operator | Oct 2002 |
67 | Callon Petroleum Operating Co | Houston, TX 77042 | Oil & Gas Operator | Jul 2024 |
68 | Cameron Development Co., Inc. | | Oil & Gas Operator | Mar 1988 |
69 | Cameron LNG, LLC | | Oil Operator | Jun 2024 |
70 | Camex Operating Company | | Oil & Gas Operator | Jun 2024 |
71 | Camex, Inc. | | Oil & Gas Operator | Jun 1992 |
72 | Campbell Energy Corp. | | Oil & Gas Operator | May 1992 |
73 | Cardinal Oil & Gas, Inc. | | Oil & Gas Operator | Jun 1995 |
74 | Caroline Hunt Schoellkopf | | Oil & Gas Operator | Aug 1987 |
75 | Carter-Langham, Inc. | Dallas, TX 75205 | Oil & Gas Operator | Dec 2024 |
76 | Caskids Operating Company | Houston, TX 77027 | Oil & Gas Operator | Dec 2024 |
77 | Castex Energy, Inc. | Houston, TX 77002 | Oil & Gas Operator | Dec 2024 |
78 | Catlett & Ferguson-Carl O & G | | Oil & Gas Operator | Jun 1978 |
79 | Cenco, Inc. | | Oil & Gas Operator | Mar 2022 |
80 | Central Crude, Inc. | | Oil & Gas Operator | Jul 2014 |
81 | Central Resources Inc | Denver, CO 80203 | Oil & Gas Operator | Dec 2019 |
82 | Centurion Exploration Company | Houston, TX 77042 | Oil & Gas Operator | May 2009 |
83 | Chaparral Energy, Inc. | Oklahoma City, OK 73114 | Oil & Gas Operator | Dec 2009 |
84 | Chaparral Energy, L.L.C. | Oklahoma City, OK 73142 | Oil & Gas Operator | Dec 2024 |
85 | Charles F. Word & Associates | | Oil Operator | Dec 1978 |
86 | Charleston Oil & Gas, Inc. | | Oil & Gas Operator | Mar 1997 |
87 | Chevron Pipe Line Company | Houston, TX 77001 | Oil Operator | Feb 2015 |
88 | Chevron USA Inc | Midland, TX 79706 | Oil & Gas Operator | Dec 2024 |
89 | Christeve Oil Company, Inc. | Houston, TX 77068 | Oil & Gas Operator | Dec 2022 |
90 | Chroma Operating, Inc. | Washington, DC 20036 | Oil & Gas Operator | Jun 2016 |
91 | Clayton W. Williams, Jr., Inc. | | Oil & Gas Operator | May 1993 |
92 | Clayton Williams Energy, Inc. | Houston, TX 77070 | Oil & Gas Operator | Apr 2017 |
93 | Cliffs Oil And Gas Company | | Oil & Gas Operator | Oct 1997 |
94 | Cliffwood Production Co. | Houston, TX 77090 | Oil & Gas Operator | Aug 2013 |
95 | CMS Nomeco Oil & Gas Co. | Jackson, MI 49201 | Oil & Gas Operator | Jan 2015 |
96 | Coastal Minerals, Inc. | | Oil Operator | Aug 1991 |
97 | Coastal Oil & Gas Corporation | Houston, TX 77252 | Oil & Gas Operator | Dec 2009 |
98 | Coastal States Gas Prod. Co. | | Oil & Gas Operator | Jun 1996 |
99 | Cockrell Oil Corporation | Houston, TX 77002-7348 | Oil & Gas Operator | Feb 2001 |
100 | Cody Energy LLC | Houston, TX 77024 | Oil & Gas Operator | Jun 2020 |