1 | 3-M Energy Corporation | San Angelo, TX 76902 | Oil & Gas Operator | Jun 2017 |
2 | A.O.E. Operators, Inc. | Fulshear, TX 77441 | Oil & Gas Operator | Dec 2024 |
3 | Ac Exploration, LLC | Houston, TX 77024 | Oil & Gas Operator | Dec 2024 |
4 | Acock/Anaqua Operating Co., LC | Corpus Chrsti, TX 78401 | Oil & Gas Operator | Apr 2004 |
5 | Acock/Anaqua Operating Co., LP | Corpus Chrsti, TX 78401 | Oil & Gas Operator | Dec 2024 |
6 | Activa Resources, LLC | San Antonio, TX 78205 | Oil & Gas Operator | Dec 2024 |
7 | Algoa Operating Company, LLC | Houston, TX 77077 | Oil & Gas Operator | Sep 2002 |
8 | Alta Mesa Services, LP | Houston, TX 77084 | Oil & Gas Operator | Dec 2024 |
9 | Amend Energy Company | Houston, TX 77227 | Oil & Gas Operator | Apr 2002 |
10 | American Cometra, Inc. | Fort Worth, TX 76102 | Oil & Gas Operator | Mar 2008 |
11 | American Operating Company | Kilgore, TX 75663 | Oil & Gas Operator | Oct 2003 |
12 | American Resources, Inc. | Houston, TX 77079 | Oil & Gas Operator | Dec 2024 |
13 | Amoco Production Co. | Houston, TX 77253 | Oil & Gas Operator | Jun 2015 |
14 | Amx Energy, Inc. | Tyler, TX 75701 | Oil & Gas Operator | Dec 2024 |
15 | Antara Resources Inc | Houston, TX 77002 | Oil & Gas Operator | Apr 2004 |
16 | API Operating Co. | Houston, TX 77036 | Oil & Gas Operator | Dec 2024 |
17 | Arco Oil & Gas Company | Plano, TX 75086 | Oil & Gas Operator | Mar 2006 |
18 | Arkla Exploration Co. | Shreveport, LA 71151 | Oil & Gas Operator | Jan 1993 |
19 | Asher Resources | Boerne, TX 78006 | Oil & Gas Operator | May 2015 |
20 | Aspect Resources LLC | Denver, CO 80202 | Oil & Gas Operator | May 2002 |
21 | Atasca Resources Inc | Houston, TX 77219 | Oil & Gas Operator | Dec 2024 |
22 | Azimuth Energy, LLC | Denver, CO 80203 | Oil & Gas Operator | Sep 2006 |
23 | Ballard Exploration Company,Inc. | Houston, TX 77002 | Oil & Gas Operator | Dec 2024 |
24 | Baxter, Murphy H. | Houston, TX 77002 | Oil & Gas Operator | Sep 1998 |
25 | Bettis, Boyle & Stovall | Graham, TX 76450 | Oil & Gas Operator | Dec 2024 |
26 | Bishop Petroleum Inc. | Houston, TX 77007 | Oil & Gas Operator | Dec 2024 |
27 | Blue Ridge Operating Company,Inc | Ashland, OR 97520 | Oil & Gas Operator | Oct 1998 |
28 | BP America Production Company | Denver, CO 80202 | Oil & Gas Operator | Oct 2024 |
29 | BPX Operating Company | Denver, CO 80202 | Oil & Gas Operator | Dec 2024 |
30 | Bridge Oil Company LP | Midland, TX 79702 | Oil & Gas Operator | May 1999 |
31 | Bridge Oil Production Co., Inc. | Midland, TX 79702 | Oil & Gas Operator | Jun 1993 |
32 | Bristol Resources Corporation | Tulsa, OK 74170 | Oil & Gas Operator | Feb 2022 |
33 | Brown, George R. Partnership,The | Houston, TX 77002 | Oil & Gas Operator | May 2006 |
34 | Burlington Resources Oil And Gas Co. | Houston, TX 77210 | Oil & Gas Operator | Mar 2023 |
35 | Buttes Resources Company | Houston, TX 77056 | Oil & Gas Operator | May 2007 |
36 | Callon Petroleum Operating Co | Houston, TX 77042 | Oil & Gas Operator | Jul 2024 |
37 | Capco Offshore Of Texas, Inc. | Houston, TX 77056 | Oil & Gas Operator | Dec 2024 |
38 | Capco Offshore, Inc. | Irving, TX 75063 | Oil & Gas Operator | May 2012 |
39 | Capco Resources Corporation | Irving, TX 75016 | Oil & Gas Operator | Mar 2004 |
40 | Caskids Operating Company | Houston, TX 77027 | Oil & Gas Operator | Dec 2024 |
41 | Cedar Point Oil Company | Baytown, TX 77520 | Oil & Gas Operator | Aug 2003 |
42 | Chain Oil & Gas, Inc. | Houston, TX 77024 | Oil & Gas Operator | Dec 2024 |
43 | Chaparral (USA) Energy, Inc. | Oklahoma City, OK 73114 | Oil & Gas Operator | Sep 2002 |
44 | Chaparral Energy, L.L.C. | Oklahoma City, OK 73142 | Oil & Gas Operator | Dec 2024 |
45 | Chapman Oil Company | Midland, TX 79702 | Oil & Gas Operator | Oct 2024 |
46 | Chilton Energy | Corpus Chrsti, TX 78401 | Oil & Gas Operator | Sep 2006 |
47 | Choice Exploration, Inc. | Irving, TX 75063 | Oil & Gas Operator | Dec 2024 |
48 | Christopher Oil & Gas Inc | Fulshear, TX 77441 | Oil & Gas Operator | Apr 2015 |
49 | Cimarex Energy Co | Midland, TX 79706 | Oil & Gas Operator | Dec 2024 |
50 | Cimarex Energy Co. Of Colorado | Midland, TX 79706 | Oil & Gas Operator | Dec 2024 |
51 | Cimarron Engineering Corp. | Kingsville, TX 78364 | Oil & Gas Operator | May 2015 |
52 | Claron Corporation | Houston, TX 77219 | Oil & Gas Operator | Dec 2024 |
53 | Clay Exploration, Inc. | Spring, TX 77387 | Oil & Gas Operator | Jun 2019 |
54 | Cliffwood Production Co. | Houston, TX 77090 | Oil & Gas Operator | Aug 2013 |
55 | Coastal Oil & Gas Corporation | Houston, TX 77252 | Oil & Gas Operator | Dec 2009 |
56 | Coastal Plains Energy Inc | Oklahoma City, OK 73112 | Oil & Gas Operator | Dec 2024 |
57 | Coastline Operating, L.L.C. | Houston, TX 77027 | Oil & Gas Operator | Dec 2006 |
58 | Cobra Oil & Gas Corporation | Wichita Falls, TX 76307 | Oil & Gas Operator | Dec 2024 |
59 | Cockburn Oil Corporation | Lubbock, TX 79493 | Oil & Gas Operator | Jul 2005 |
60 | Cologne Production Company | San Antonio, TX 78209 | Oil & Gas Operator | Nov 2014 |
61 | Columbia Gas Development Corp. | Houston, TX 77251 | Oil & Gas Operator | Jun 1996 |
62 | Columbus Energy, LLC | Houston, TX 77046 | Oil & Gas Operator | Dec 2024 |
63 | Comet Oil & Gas, Inc. | Conroe, TX 77305 | Oil & Gas Operator | Dec 2024 |
64 | Comet Production | Conroe, TX 77305 | Oil Operator | Dec 2024 |
65 | Cometra Oil And Gas, Inc. | Fort Worth, TX 76102 | Oil & Gas Operator | Feb 1997 |
66 | Conoco Inc. | Houston, TX 77252 | Oil & Gas Operator | Mar 2015 |
67 | Continental Operating Co. | Houston, TX 77024 | Oil & Gas Operator | Dec 2024 |
68 | Convest Energy Corporation | Houston, TX 77057 | Oil & Gas Operator | Sep 2014 |
69 | Coronado Energy E&P Company, LLC | Houston, TX 77252 | Oil & Gas Operator | Dec 2010 |
70 | Cortex Energy, Inc. | Wichita, KS 67217 | Oil & Gas Operator | Jun 2024 |
71 | Corum Production Company | Houston, TX 77002 | Oil & Gas Operator | Dec 2024 |
72 | Cox & Perkins Exploration, Inc. | Houston, TX 77057 | Oil & Gas Operator | Dec 2024 |
73 | Crest Resources & Expl. Corp. | Houston, TX 77079 | Oil & Gas Operator | Dec 1998 |
74 | Cross Timbers Operating Co | Fort Worth, TX 76102 | Oil & Gas Operator | Aug 2024 |
75 | Crossroads Energy L.P. | Houston, TX 77064 | Oil & Gas Operator | Jun 2011 |
76 | Crossroads Energy Partners, LLC | Houston, TX 77070 | Oil & Gas Operator | Mar 2018 |
77 | Cwoc | Big Spring, TX 79721 | Oil & Gas Operator | Dec 2024 |
78 | Cxy Energy, Inc. | Dallas, TX 75251 | Oil & Gas Operator | Nov 2000 |
79 | D. G. Oil Co. | Dennis, TX 76439 | Oil & Gas Operator | Dec 2024 |
80 | Daniels Corporation, The | Seabrook, TX 77586 | Oil & Gas Operator | Dec 2024 |
81 | Dartex Energy Corporation | Austin, TX 78746 | Oil & Gas Operator | Dec 2024 |
82 | Davis Bros. Oil Producers, Inc. | Tulsa, OK 74119 | Oil & Gas Operator | Apr 2020 |
83 | Davis Petroleum Corp. | Houston, TX 77027 | Oil & Gas Operator | Dec 2024 |
84 | Daystar Operating Company, LLC | Austin, TX 78750 | Oil & Gas Operator | Apr 2008 |
85 | Delaware Davis Petroleum Corp. | Houston, TX 77056 | Oil & Gas Operator | Jan 2000 |
86 | Denbury Onshore, LLC | Plano, TX 75024 | Oil & Gas Operator | Dec 2024 |
87 | Devon Energy Operating Co., L.P. | Oklahoma City, OK 73102 | Oil & Gas Operator | Jun 2009 |
88 | Devon Energy Production Company LP | Oklahoma City, OK 73102 | Oil & Gas Operator | Dec 2024 |
89 | Devon Louisiana Corporation | Houston, TX 77002 | Oil & Gas Operator | Oct 2019 |
90 | Doggy Oil Corp | Decatur, GA 30031 | Oil & Gas Operator | Dec 2024 |
91 | Drillmar Energy, Inc. | Houston, TX 77079 | Oil & Gas Operator | Nov 2014 |
92 | Dune Operating Company | Dallas, TX 75201 | Oil & Gas Operator | Jun 2016 |
93 | Dynamic Production, Inc. | Fort Worth, TX 76106 | Oil & Gas Operator | Dec 2024 |
94 | El Paso E&P Company, L.P. | Houston, TX 77002 | Oil & Gas Operator | Mar 2013 |
95 | El Tres Exploration | Houston, TX 77098 | Oil & Gas Operator | Mar 2008 |
96 | Elliott Oil & Gas Company | The Woodlands, TX 77380 | Oil & Gas Operator | Sep 2006 |
97 | Elliott Oil & Gas Operating Co. | Magnolia, TX 77354 | Oil & Gas Operator | Dec 2024 |
98 | Energy Reserves Group LLC | Houston, TX 77002 | Oil & Gas Operator | Mar 2018 |
99 | Enron Oil & Gas Company | Houston, TX 77210 | Oil & Gas Operator | Dec 1999 |
100 | Enserch Exploration Inc | Dallas, TX 75206 | Oil & Gas Operator | Apr 2015 |