1 | 3tec Energy Corporation | Houston, TX 77002 | Oil & Gas Operator | Dec 2019 |
2 | Acadian Gas Pipeline System | | Oil Operator | Jul 2024 |
3 | Ada Oil Exploration Corp | | Oil & Gas Operator | Jan 1986 |
4 | Adams Resources Expl. Corp. | Houston, TX 77001 | Oil & Gas Operator | Apr 2020 |
5 | Addison Resources Inc. | | Oil & Gas Operator | Jul 1998 |
6 | Alfred C. Glassell, Jr. | | Oil & Gas Operator | Apr 2007 |
7 | Alliance Exploration Corp. | | Oil & Gas Operator | Mar 1983 |
8 | Alliance Resources (USA), Inc. | | Oil & Gas Operator | Oct 2002 |
9 | Alpine Expl. Companies, Inc. | | Oil & Gas Operator | Jan 2024 |
10 | Amax Oil & Gas Inc | Fort Worth, TX 76107 | Oil & Gas Operator | Nov 2014 |
11 | Amerada Hess Corporation | Houston, TX 77252 | Oil & Gas Operator | Aug 2013 |
12 | American Exploration Company | Houston, TX 77010 | Oil & Gas Operator | Jan 2000 |
13 | American Exploration Oper. Co. | | Oil & Gas Operator | May 1990 |
14 | American Explorer, Inc. | Lafayette, LA 70505 | Oil & Gas Operator | Jan 1999 |
15 | American Petrofina Co Of Texas | | Oil & Gas Operator | Jun 1985 |
16 | Americus Resources, Inc. | | Oil & Gas Operator | Feb 1993 |
17 | Aminoil Of Louisiana, Inc. | | Oil & Gas Operator | Dec 1981 |
18 | Aminoil USA Inc | | Oil & Gas Operator | Jan 1985 |
19 | Amoco Production Co. | Houston, TX 77253 | Oil & Gas Operator | Jun 2015 |
20 | Apache Corporation | Houston, TX 77042 | Oil & Gas Operator | Nov 2024 |
21 | Araxas Exploration, Inc. | The Woodlands, TX 77380 | Oil & Gas Operator | Apr 1998 |
22 | Arco O & G Co-Div Atl Rich Co | | Oil & Gas Operator | Feb 1994 |
23 | Aroc (Texas) Inc | Houston, TX 77090 | Oil & Gas Operator | Dec 2014 |
24 | Arrowhead Energy Expl, LLC | | Oil & Gas Operator | May 2013 |
25 | Arrowhead Enterprises, Inc. | Baton Rouge, LA 70816 | Oil & Gas Operator | Apr 2001 |
26 | Ascent Energy, Inc | McKinney, TX 75069 | Oil & Gas Operator | Nov 2008 |
27 | Ashlawn Corporation | | Oil & Gas Operator | Dec 2008 |
28 | Aspect Energy, LLC | Denver, CO 80202 | Oil & Gas Operator | Nov 2024 |
29 | Aspen Exploration | | Oil & Gas Operator | Jan 1983 |
30 | Atc Realty Eight, Inc. | | Oil & Gas Operator | Nov 1988 |
31 | Atinum Operating, Inc. | Houston, TX 77002 | Oil & Gas Operator | Nov 2024 |
32 | Azimuth Energy, LLC | Denver, CO 80203 | Oil & Gas Operator | Sep 2006 |
33 | Aztec Oil & Gas Company | | Oil & Gas Operator | Mar 1978 |
34 | Baby Oil, Inc. | | Oil & Gas Operator | Oct 2017 |
35 | Badger Energy LLC | | Oil & Gas Operator | Jul 2024 |
36 | Badger Oil Corporation | Lafayette, LA 70505 | Oil & Gas Operator | Nov 2011 |
37 | Ballard Exploration Company,Inc. | Houston, TX 77002 | Oil & Gas Operator | Nov 2024 |
38 | Bargo Energy Company | Houston, TX 77010 | Oil & Gas Operator | May 2001 |
39 | Bass Enterprises Production Co | Fort Worth, TX 76102 | Oil & Gas Operator | Dec 2006 |
40 | Bay Coquille, Inc. | | Oil & Gas Operator | Jun 2023 |
41 | Bean Energy, Inc. | | Oil & Gas Operator | Dec 1986 |
42 | Bean Resources, Inc. | | Oil & Gas Operator | Aug 2006 |
43 | Bechtel Energy PTNR LTD PRTNRS | | Oil & Gas Operator | Jan 1996 |
44 | Bechtel Energy Resources Corp. | Houston, TX 77210 | Oil & Gas Operator | Jun 1996 |
45 | Beem Oil & Gas Company | | Oil & Gas Operator | Dec 1994 |
46 | Bellwether Exploration Company | Houston, TX 77010 | Oil & Gas Operator | May 2001 |
47 | Black Diamond Energy, LLC | | Oil & Gas Operator | Nov 2008 |
48 | Block "T" Petroleum, Inc. | Tyler, TX 75707 | Oil & Gas Operator | Nov 2024 |
49 | Bois D'Arc Offshore LTD. | Houston, TX 77002 | Oil & Gas Operator | Aug 2008 |
50 | Bon Oil Company, Inc. | | Oil & Gas Operator | Nov 1993 |
51 | Borden, Inc. | Columbus, OH 43215 | Oil & Gas Operator | Mar 1990 |
52 | Bradco Oil & Gas Company | | Oil & Gas Operator | Dec 1980 |
53 | Brammer Engineering, Inc. | Shreveport, LA 71101 | Oil & Gas Operator | Nov 2024 |
54 | Brechtel Energy Corporation | | Oil & Gas Operator | Sep 2008 |
55 | Bridge Oil Company LP | Midland, TX 79702 | Oil & Gas Operator | May 1999 |
56 | Bridwell Oil Management, LLC | Wichita Falls, TX 76307 | Oil & Gas Operator | Nov 2024 |
57 | Bridwell Oil MGMT Of Al, LLC | | Oil & Gas Operator | Apr 2006 |
58 | Bristol Resources Corporation | Tulsa, OK 74170 | Oil & Gas Operator | Feb 2022 |
59 | Brock Exploration Corporation | New Orleans, LA 70112-1707 | Oil & Gas Operator | Jan 1999 |
60 | Brock Oil & Gas Corporation | Tulsa, OK 74103 | Oil & Gas Operator | Jun 2019 |
61 | Brooklyn Union Expl. Co., Inc. | | Oil & Gas Operator | Jul 1994 |
62 | Browning Oil Company, Inc. | Dallas, TX 75251 | Oil & Gas Operator | Nov 2024 |
63 | Bta Oil Producers | Midland, TX 79701 | Oil & Gas Operator | Sep 2009 |
64 | Burlington Res Offshore Inc | | Oil & Gas Operator | Oct 2002 |
65 | Burlington Res Oil & Gas Co | | Oil & Gas Operator | Dec 2000 |
66 | Burlington Res Oil & Gas LP | Houston, TX 77079 | Oil & Gas Operator | Sep 2024 |
67 | Cabot Oil & Gas Corporation | Houston, TX 77024 | Oil & Gas Operator | Aug 2024 |
68 | Campbell Wells Corporation | | Oil Operator | Dec 1995 |
69 | Canada Crown Inv Corporation | | Oil & Gas Operator | Apr 1998 |
70 | Canlan Oil Company | | Oil & Gas Operator | Mar 1992 |
71 | Cantium, LLC | | Oil & Gas Operator | Jul 2024 |
72 | Carl Oil & Gas Co. | Bakersfield, CA 93309 | Oil & Gas Operator | Dec 1995 |
73 | Carrizo Oil & Gas, Inc. | Houston, TX 77002 | Oil & Gas Operator | Nov 2024 |
74 | Castex Energy, Inc. | Houston, TX 77002 | Oil & Gas Operator | Nov 2024 |
75 | Castlerock Oil Company, Inc. | Addison, TX 75001 | Oil & Gas Operator | Feb 2006 |
76 | Cedyco Corporation | Houston, TX 77227 | Oil & Gas Operator | Nov 2008 |
77 | Century Mineral Corporation | | Oil & Gas Operator | Dec 1990 |
78 | Chaparral Energy, L.L.C. | Oklahoma City, OK 73142 | Oil & Gas Operator | Nov 2024 |
79 | Charles A. O'Niell, Jr. | | Oil & Gas Operator | Apr 2001 |
80 | Chesapeake Operating, Inc. | Oklahoma City, OK 73154 | Oil & Gas Operator | Jul 2024 |
81 | Chesapeake Operating, LLC | Oklahoma City, OK 73154 | Oil & Gas Operator | Nov 2024 |
82 | Chevron USA Inc | Midland, TX 79706 | Oil & Gas Operator | Nov 2024 |
83 | Christeve Oil Company, Inc. | Houston, TX 77068 | Oil & Gas Operator | Dec 2022 |
84 | Chroma Operating, Inc. | Washington, DC 20036 | Oil & Gas Operator | Jun 2016 |
85 | Clayton Williams Energy, Inc. | Houston, TX 77070 | Oil & Gas Operator | Apr 2017 |
86 | Clovelly Oil Co., Inc. | | Oil & Gas Operator | Dec 2008 |
87 | CMS Nomeco Oil & Gas Co. | Jackson, MI 49201 | Oil & Gas Operator | Jan 2015 |
88 | CMS Oil And Gas Company | Jackson, MI 49201 | Oil & Gas Operator | Oct 2002 |
89 | Coastal Oil & Gas Corporation | Houston, TX 77252 | Oil & Gas Operator | Dec 2009 |
90 | Cockrell Oil Corporation | Houston, TX 77002-7348 | Oil & Gas Operator | Feb 2001 |
91 | Cody Energy, Inc. | Houston, TX 77077 | Oil & Gas Operator | Sep 2024 |
92 | Collet Oil Ventures, Inc. | Denver, CO 80217 | Oil & Gas Operator | Jun 2004 |
93 | Colt Production Corp. Inc. | | Oil & Gas Operator | Jul 1996 |
94 | Columbia Gulf Transmission Co. | | Oil Operator | Dec 2014 |
95 | Columbia Gulf Transmission Company, LLC | | Oil Operator | Jul 2024 |
96 | Comstock Oil & Gas -- La, Inc. | | Oil & Gas Operator | Mar 2005 |
97 | Concord Resources, LLC | | Oil & Gas Operator | Nov 2000 |
98 | Conquest Exploration Co. | | Oil & Gas Operator | Mar 1992 |
99 | Consolidated Resources Inc | | Oil & Gas Operator | May 2004 |
100 | Corum Production Company | Houston, TX 77002 | Oil & Gas Operator | Nov 2024 |