1 | 3tec Energy Corporation | Houston, TX 77002 | Oil & Gas Operator | Dec 2019 |
2 | 4J Energy LLC | Houston, TX 77079 | Oil & Gas Operator | Aug 2022 |
3 | 7711 Corporation, The | Houston, TX 77002 | Oil & Gas Operator | Dec 2024 |
4 | Acock Engineering & Assoc., Inc. | Corpus Chrsti, TX 78401 | Oil & Gas Operator | Jul 2002 |
5 | Acock/Anaqua Operating Co., LC | Corpus Chrsti, TX 78401 | Oil & Gas Operator | Apr 2004 |
6 | Activa Resources, LLC | San Antonio, TX 78205 | Oil & Gas Operator | Dec 2024 |
7 | Activa Resources, LTD. | San Antonio, TX 78205 | Oil & Gas Operator | Mar 2008 |
8 | Alamo Operating Company, L. C. | San Antonio, TX 78278 | Oil & Gas Operator | Aug 2023 |
9 | Alegre Energy Operating, LP | San Antonio, TX 78216 | Oil & Gas Operator | Sep 2005 |
10 | Alegre Energy, Inc. | San Antonio, TX 78216 | Oil & Gas Operator | Dec 2024 |
11 | Alexander Energy Corporation | Dallas, TX 75206 | Oil & Gas Operator | Apr 2015 |
12 | Allegiant Resources, LLC | Lafayette, LA 70503 | Oil & Gas Operator | Dec 2024 |
13 | American Delta Corporation | Portland, TX 78374 | Oil & Gas Operator | Jun 2013 |
14 | Amoco Production Co. | Houston, TX 77253 | Oil & Gas Operator | Jun 2015 |
15 | Anadarko Austin Chalk Company | Houston, TX 77251 | Oil & Gas Operator | Feb 2006 |
16 | Anadarko E&P Company LP | Houston, TX 77251 | Oil & Gas Operator | Aug 2014 |
17 | Anadarko E&P Onshore LLC | Houston, TX 77046 | Oil & Gas Operator | Dec 2024 |
18 | Anchor Oil Company | Gruver, TX 79040 | Gas Operator | Dec 2024 |
19 | Anchor Operating Co. | Houston, TX 77055 | Oil & Gas Operator | Dec 2024 |
20 | Aop Operating Corporation | Dallas, TX 75313 | Oil & Gas Operator | Aug 2003 |
21 | Apache Corporation | Houston, TX 77042 | Oil & Gas Operator | Dec 2024 |
22 | Arcturus Operating Company | Addison, TX 75001 | Oil & Gas Operator | Dec 2024 |
23 | Argent Energy (Us) Holdings Inc | Sugar Land, TX 77479 | Oil & Gas Operator | Sep 2021 |
24 | Arkoma Prod Co Of Texas, Inc. | Dallas, TX 75225 | Oil Operator | May 2004 |
25 | Arpel, Inc. | Oklahoma City, OK 73102 | Oil & Gas Operator | Apr 2014 |
26 | Arrow Exploration Company | Plano, TX 75075 | Oil & Gas Operator | Dec 2004 |
27 | Arrowhead Operating Inc. | Argyle, TX 76226 | Oil & Gas Operator | Dec 2024 |
28 | Asm Oil & Gas Company, Inc. | Dallas, TX 75367 | Oil & Gas Operator | May 2020 |
29 | Atasca Resources Inc | Houston, TX 77219 | Oil & Gas Operator | Dec 2024 |
30 | Atkinson Energy Corporation | Giddings, TX 78942 | Oil & Gas Operator | Jan 2010 |
31 | B & B Drilling Co. | Milano, TX 76556 | Oil & Gas Operator | Jul 2015 |
32 | Bagley, Roy | Magnolia, TX 77354 | Oil & Gas Operator | Dec 2024 |
33 | Bargo Energy Company | Houston, TX 77010 | Oil & Gas Operator | May 2001 |
34 | Bass Petroleum Inc | Austin, TX 78716 | Oil & Gas Operator | Dec 2024 |
35 | Baxter, Kelly H. | Austin, TX 78767 | Oil & Gas Operator | Mar 2008 |
36 | Bay Rock Operating Company | San Antonio, TX 78212 | Oil & Gas Operator | Dec 2024 |
37 | Baytex Energy USA, Inc. | Houston, TX 77084 | Oil & Gas Operator | Dec 2024 |
38 | BCL Operating, LLC | Houston, TX 77269 | Oil & Gas Operator | Dec 2024 |
39 | Beaver Oil Company Inc | New Matamoras, OH 45767 | Oil & Gas Operator | Dec 2020 |
40 | Belco Energy Corp. | Dallas, TX 75231 | Oil & Gas Operator | Mar 2015 |
41 | Belco Operating Corp. | Dallas, TX 75231 | Oil & Gas Operator | Aug 1998 |
42 | Bellwether Exploration Company | Houston, TX 77010 | Oil & Gas Operator | May 2001 |
43 | Benson Mineral Group Inc | Denver, CO 80202 | Oil & Gas Operator | Apr 2022 |
44 | Berenergy Corporation | Denver, CO 80217 | Oil & Gas Operator | Nov 2024 |
45 | Beta Oil Corporation | San Antonio, TX 78232 | Oil & Gas Operator | Dec 2024 |
46 | Big "6" Drilling Company | Houston, TX 77063 | Oil & Gas Operator | Mar 2019 |
47 | Bledsoe Petro Corporation | Dallas, TX 75201 | Oil & Gas Operator | Dec 2000 |
48 | Blessing Energy, Inc. | Giddings, TX 78942 | Oil & Gas Operator | Dec 2024 |
49 | Bluebonnet Land & Cattle Co. | Graham, TX 76450 | Oil & Gas Operator | Dec 2024 |
50 | Bommer Engineering Co. | San Antonio, TX 78260 | Oil & Gas Operator | Dec 2024 |
51 | Bowman, Fred Inc. | Dallas, TX 75225 | Oil & Gas Operator | Feb 2014 |
52 | BP America Production Company | Denver, CO 80202 | Oil & Gas Operator | Oct 2024 |
53 | Brammer Supply Inc | Gainesville, TX 76240 | Oil & Gas Operator | Nov 2014 |
54 | Brazos Resources, Inc. | College Sta, TX 77840 | Oil & Gas Operator | Dec 1998 |
55 | BRG Petroleum Corporation | Tulsa, OK 74136 | Oil & Gas Operator | Mar 2020 |
56 | Bridge Oil Company LP | Midland, TX 79702 | Oil & Gas Operator | May 1999 |
57 | Brittany Drilling Co. | Abilene, TX 79604 | Oil & Gas Operator | Dec 2000 |
58 | Browning Oil Company, Inc. | Dallas, TX 75251 | Oil & Gas Operator | Dec 2024 |
59 | Bull Operating, LLC | Houston, TX 77010 | Oil & Gas Operator | Dec 2024 |
60 | Burro Bluff Corporation | Houston, TX 77024 | Oil & Gas Operator | Dec 2024 |
61 | BXP Operating, LLC | Houston, TX 77079 | Oil & Gas Operator | Dec 2024 |
62 | Byng Energy Group Inc | Enid, OK 73703 | Oil & Gas Operator | Dec 2024 |
63 | C&P Resources Operating Co,LLC | Houston, TX 77056 | Oil & Gas Operator | Dec 2024 |
64 | Cabeza Oil And Gas, LLC | Austin, CO 81410 | Oil & Gas Operator | Mar 2022 |
65 | Cag Petroleum Corp. | Dallas, TX 75382 | Oil & Gas Operator | Dec 2024 |
66 | Cago, Inc. | College Sta, TX 77845 | Oil & Gas Operator | Dec 2024 |
67 | Central Plains Oil&Gas Corp. (A) | Bryan, TX 77802 | Oil & Gas Operator | Mar 2003 |
68 | Champlin Exploration, Inc. | Enid, OK 73702 | Oil & Gas Operator | Oct 2024 |
69 | Chaparral Energy, L.L.C. | Oklahoma City, OK 73142 | Oil & Gas Operator | Dec 2024 |
70 | Chapman Oil Company | Midland, TX 79702 | Oil & Gas Operator | Oct 2024 |
71 | Chemily Management Company | Cypress, TX 77429 | Oil & Gas Operator | Apr 2023 |
72 | Chesapeake Operating, Inc. | Oklahoma City, OK 73154 | Oil & Gas Operator | Aug 2024 |
73 | Chesapeake Operating, LLC | Oklahoma City, OK 73154 | Oil & Gas Operator | Dec 2024 |
74 | Chisos, LTD | Houston, TX 77098 | Oil & Gas Operator | Dec 2024 |
75 | Christensen & Matthews | Houston, TX 77040 | Oil & Gas Operator | Dec 2024 |
76 | Cibolo Energy Operating, Inc. | Bulverde, TX 78163 | Oil & Gas Operator | Dec 2024 |
77 | Cico Oil & Gas Company | Houston, TX 77057 | Oil & Gas Operator | Aug 2019 |
78 | Cimarron Engineering, LLC | Kingsville, TX 78364 | Oil & Gas Operator | Dec 2024 |
79 | Cinco Natural Resources Corp | La Grange, TX 78945 | Oil & Gas Operator | Dec 2024 |
80 | Cirrus Production Company | Enid, OK 73702 | Oil & Gas Operator | Sep 2024 |
81 | Clayton Williams Energy, Inc. | Houston, TX 77070 | Oil & Gas Operator | Apr 2017 |
82 | CML Exploration, LLC | Austin, TX 78746 | Oil & Gas Operator | Dec 2024 |
83 | Coastal Oil & Gas Corporation | Houston, TX 77252 | Oil & Gas Operator | Dec 2009 |
84 | Cobra Oil & Gas Corporation | Wichita Falls, TX 76307 | Oil & Gas Operator | Dec 2024 |
85 | Coda Energy, Inc. | Dallas, TX 75231 | Oil & Gas Operator | Aug 1998 |
86 | Cody Energy, Inc. | Houston, TX 77077 | Oil & Gas Operator | Oct 2024 |
87 | Cole, Frank W Engineering | Dallas, TX 75254 | Oil & Gas Operator | Mar 2006 |
88 | Columbia Gas Development Corp. | Houston, TX 77251 | Oil & Gas Operator | Jun 1996 |
89 | Conoco Inc. | Houston, TX 77252 | Oil & Gas Operator | Mar 2015 |
90 | Costilla Energy Inc | Midland, TX 79702 | Oil & Gas Operator | Mar 2008 |
91 | Costilla Petroleum Corporation | Midland, TX 79702 | Oil & Gas Operator | Mar 2015 |
92 | County Management, Inc. | Houston, TX 77055 | Oil & Gas Operator | Apr 1993 |
93 | Cox & Perkins Exploration, Inc. | Houston, TX 77057 | Oil & Gas Operator | Dec 2024 |
94 | Crawford Energy, Incorporated | Houston, TX 77056 | Oil & Gas Operator | Mar 2008 |
95 | Crawford Hughes Operating Co. | The Woodlands, TX 77380 | Oil & Gas Operator | Dec 2024 |
96 | Creative Oil & Gas Operating,LLC | Giddings, TX 78942 | Oil & Gas Operator | May 2024 |
97 | Credo Petroleum Corporation | Denver, CO 80202 | Oil & Gas Operator | Jan 2013 |
98 | Crimson Energy Company, LC | Fort Worth, TX 76102 | Oil & Gas Operator | Mar 2004 |
99 | Crimson Exploration Oper., Inc. | Houston, TX 77002 | Oil & Gas Operator | Dec 2019 |
100 | CRM Energy, Inc. | Oklahoma City, OK 73101 | Oil & Gas Operator | Dec 2024 |