101 | CTR Petroleum, Inc. | Corpus Chrsti, TX 78414 | Oil & Gas Operator | Mar 2015 |
102 | Cummins & Walker Oil Co., Inc. | Austin, TX 78746 | Oil & Gas Operator | Jan 2021 |
103 | D. G. Oil Co. | Dennis, TX 76439 | Oil & Gas Operator | Dec 2024 |
104 | D90 Energy, LLC | Austin, TX 78746 | Oil & Gas Operator | Dec 2024 |
105 | Dalen Resources Oil & Gas Co. | Dallas, TX 75206 | Oil & Gas Operator | Jun 2010 |
106 | Dallas Petroleum Group, LLC | Dallas, TX 75379 | Oil & Gas Operator | Dec 2024 |
107 | Davis Petroleum Corp. | Houston, TX 77027 | Oil & Gas Operator | Dec 2024 |
108 | DCP Operating Co LP | Houston, TX 77042 | Oil & Gas Operator | Sep 2024 |
109 | Deguello Operating LLC | Kilgore, TX 75663 | Oil & Gas Operator | Dec 2024 |
110 | Delray Oil, Inc. | San Antonio, TX 78209 | Oil & Gas Operator | Dec 2024 |
111 | Denali Oil & Gas Management, LLC | Houston, TX 77060 | Oil & Gas Operator | Dec 2012 |
112 | Denovo Oil & Gas, Inc. | Houston, TX 77210 | Oil & Gas Operator | May 1995 |
113 | Devon Energy Operating Co., L.P. | Oklahoma City, OK 73102 | Oil & Gas Operator | Jun 2009 |
114 | Devon Energy Production Company LP | Oklahoma City, OK 73102 | Oil & Gas Operator | Dec 2024 |
115 | Devon Louisiana Corporation | Houston, TX 77002 | Oil & Gas Operator | Oct 2019 |
116 | Dewbre Petroleum Corporation | Corpus Chrsti, TX 78404 | Oil & Gas Operator | Dec 2024 |
117 | Digital Operating Company LLC | Boerne, TX 78006 | Oil & Gas Operator | Dec 2024 |
118 | Dimock Operating Company | Iowa Park, TX 76367 | Oil & Gas Operator | Dec 2024 |
119 | Dinero Oil Corporation | Corpus Chrsti, TX 78460 | Oil & Gas Operator | Nov 1999 |
120 | Discorbis Oil Company | San Antonio, TX 78217 | Oil & Gas Operator | Jul 2019 |
121 | Dominion Exploration & Production Inc | Houston, TX 77060 | Oil & Gas Operator | Apr 2015 |
122 | Dominion Oklahoma Texas E&P, Inc | Richmond, VA 23219 | Oil & Gas Operator | Sep 2018 |
123 | Dorado Drilling, Inc. | Gulfport, MS 39501 | Oil & Gas Operator | Dec 2024 |
124 | Dorado Oil Company | Corpus Chrsti, TX 78403 | Oil & Gas Operator | Dec 2014 |
125 | Double Play Oil & Gas, Inc | Portland, TX 78374 | Oil & Gas Operator | Dec 2024 |
126 | Dreyfus, Louis Natural Gas Corp | Oklahoma City, OK 73134 | Oil & Gas Operator | Nov 2001 |
127 | Eagle Oil & Gas Co. | Dallas, TX 75225 | Oil & Gas Operator | Dec 2024 |
128 | Edge Petroleum Oper. Co., Inc. | Houston, TX 77042 | Oil & Gas Operator | Nov 2010 |
129 | Eex Corporation | Houston, TX 77060 | Oil & Gas Operator | Feb 2000 |
130 | Eex E&P Company, L.P. | Houston, TX 77060 | Oil & Gas Operator | Jul 2003 |
131 | Eex Operating, L.P. | Houston, TX 77060 | Oil & Gas Operator | Jul 2003 |
132 | Egan Resources Inc. | Katy, TX 77494 | Oil & Gas Operator | Oct 2016 |
133 | El Paso E&P Company, L.P. | Houston, TX 77002 | Oil & Gas Operator | Mar 2013 |
134 | El Paso Production Company | Houston, TX 77002 | Oil & Gas Operator | Mar 2016 |
135 | El Paso Production Oil & Gas Co. | Houston, TX 77252 | Oil & Gas Operator | Dec 2024 |
136 | El Reno Energy, LLC | Granbury, TX 76048 | Oil & Gas Operator | Dec 2024 |
137 | Energy + Savings, L.L.C. | Alamo, TX 78516 | Oil & Gas Operator | Jan 2008 |
138 | Energy Development Corporation | Houston, TX 77067 | Oil & Gas Operator | Dec 2023 |
139 | Enron Oil & Gas Company | Houston, TX 77210 | Oil & Gas Operator | Dec 1999 |
140 | Enserch Exploration Inc | Dallas, TX 75206 | Oil & Gas Operator | Apr 2015 |
141 | EOG Resources Inc | Midland, TX 79702 | Oil & Gas Operator | Dec 2024 |
142 | EP Energy E&P Company, LP | Houston, TX 77210 | Oil & Gas Operator | May 2022 |
143 | Erskine Energy, LLC | H SPG NTL PK, AR 71909 | Oil & Gas Operator | Dec 2024 |
144 | Erskine Operating LLC | Houston, TX 77079 | Oil & Gas Operator | Dec 2007 |
145 | Escudo Oil & Gas, LLC | Houston, TX 77006 | Oil & Gas Operator | Dec 2024 |
146 | Esenjay Petroleum Corp. | Corpus Chrsti, TX 78471 | Oil & Gas Operator | Jul 1998 |
147 | Export Petroleum Corporation | Fort Worth, TX 76147 | Oil & Gas Operator | Dec 2024 |
148 | Extenergy, L.P. | The Woodlands, TX 77380 | Oil & Gas Operator | Dec 2014 |
149 | Exxon Corporation | Houston, TX 77210 | Oil & Gas Operator | Jun 2024 |
150 | Exxon Mobil Corporation | Spring, TX 77389 | Oil & Gas Operator | Dec 2024 |
151 | Falcon Production Co. | Floresville, TX 78114 | Oil & Gas Operator | Dec 2024 |
152 | Fargo Oil & Gas, LLC | Corpus Chrsti, TX 78415 | Oil & Gas Operator | Dec 2024 |
153 | Faulconer Energy, LLC | Tyler, TX 75711 | Oil & Gas Operator | Dec 2024 |
154 | Faulconer Vernon E Inc | Tyler, TX 75711 | Oil & Gas Operator | Oct 2024 |
155 | Fidelity Explor. & Prod. Co. | Denver, CO 80202 | Oil & Gas Operator | Nov 2015 |
156 | Fields Exploration, Inc. | Corpus Chrsti, TX 78401 | Oil & Gas Operator | Aug 2015 |
157 | Fina Oil And Chemical Company | Dallas, TX 75221 | Oil & Gas Operator | May 2019 |
158 | Firstrike Energy Corporation | Cleburne, TX 76033 | Oil & Gas Operator | Jun 2024 |
159 | Five-Jab, Inc. | Tomball, TX 77377 | Oil & Gas Operator | Dec 2024 |
160 | Flairtex Resources, Inc. | Houston, TX 77040 | Oil & Gas Operator | Oct 1998 |
161 | Fletcher Operating, LLC | Fairhope, AL 36533 | Oil & Gas Operator | Dec 2024 |
162 | Flournoy Production Co. | Alice, TX 78333 | Oil & Gas Operator | Dec 2002 |
163 | Fordyce Oil & Gas | Sullivan City, TX 78595 | Oil & Gas Operator | Jul 2022 |
164 | Forest Oil Corporation | Houston, TX 77002 | Oil & Gas Operator | Mar 2015 |
165 | Fortune Resources LLC | Longview, TX 75604 | Oil & Gas Operator | Dec 2024 |
166 | Foundation Energy Management, LLC | Addison, TX 75001 | Oil & Gas Operator | Dec 2024 |
167 | Fox, Hewitt B., Inc. | Corpus Chrsti, TX 78411 | Oil & Gas Operator | Dec 2024 |
168 | Franklin, J.W. Oil Operator | | Oil & Gas Operator | Nov 2001 |
169 | Frisco Oil Corporation | Tyler, TX 75701 | Oil & Gas Operator | Mar 2000 |
170 | Galilee Oil Investments LLC | San Antonio, TX 78205 | Oil & Gas Operator | Dec 2024 |
171 | Gardner Energy Corporation | Houston, TX 77024 | Oil & Gas Operator | Mar 1999 |
172 | Genesis Crude Oil LP | Houston, TX 77002 | Oil & Gas Operator | Apr 2000 |
173 | Gennesaret Investments, LLC | Burleson, TX 76028 | Oil & Gas Operator | Aug 2024 |
174 | Gillring Oil Company | Fort Worth, TX 76102 | Oil & Gas Operator | May 1994 |
175 | Goldking Prod. Co. | Houston, TX 77002 | Oil & Gas Operator | Apr 1998 |
176 | Graham Royalty LTD | Covington, LA 70434 | Oil & Gas Operator | Jul 2007 |
177 | Greehey And Company LTD | San Antonio, TX 78216 | Oil & Gas Operator | May 2020 |
178 | Green Exploration Company | Austin, TX 78711 | Oil & Gas Operator | Dec 2024 |
179 | Greenbriar Energy Inc. | Houston, TX 77098 | Oil & Gas Operator | Feb 2004 |
180 | Greenbrier Oper. Co. | Dallas, TX 75229 | Oil & Gas Operator | Feb 2001 |
181 | Grizzly Op Of Delaware, LLC | Houston, TX 77057 | Oil & Gas Operator | Mar 2021 |
182 | Gruy Petroleum Management Co. | Irving, TX 75014 | Oil & Gas Operator | Nov 2014 |
183 | Gulfmark Energy Inc | Houston, TX 77027 | Gas Operator | Apr 2023 |
184 | Hamilton Brothers Oil Co. | Houston, TX 77057 | Oil & Gas Operator | Mar 2015 |
185 | Hampton Resources Corporation | Houston, TX 77010 | Oil & Gas Operator | Mar 1996 |
186 | Hanson Minerals Co. | Houston, TX 77042 | Oil & Gas Operator | Oct 1993 |
187 | Hanson Production Company | Cuero, TX 77954 | Oil & Gas Operator | Jul 2009 |
188 | Hardwick Oil Company | Sugar Land, TX 77478 | Oil & Gas Operator | Nov 2014 |
189 | Hawn Brothers | Corpus Chrsti, TX 78401 | Oil & Gas Operator | Apr 2003 |
190 | Hawn Brothers Company | Corpus Chrsti, TX 78401 | Oil & Gas Operator | Jan 2003 |
191 | Headington Energy Partners, LLC | Corpus Chrsti, TX 78401 | Oil & Gas Operator | Dec 2024 |
192 | Headington Oil Company | Dallas, TX 75231 | Oil & Gas Operator | Dec 2016 |
193 | Headington Oil Company LLC | Dallas, TX 75204 | Oil & Gas Operator | Apr 2016 |
194 | Headington Oil Company, L.P. | Dallas, TX 75231 | Oil & Gas Operator | Mar 2008 |
195 | Heritage Operating Co., Inc. The | Stafford, TX 77497 | Oil & Gas Operator | May 1997 |
196 | Hibbard Energy, LP | Whitehouse, TX 75791 | Oil & Gas Operator | Dec 2024 |
197 | Hilcorp Energy Company | Houston, TX 77208 | Oil & Gas Operator | Dec 2024 |
198 | Hope Production, Inc. | Edinburg, TX 78540 | Oil & Gas Operator | Jan 2000 |
199 | Houston Oil & Minerals Corp. | Houston, TX 77002 | Oil & Gas Operator | Aug 1996 |
200 | Houston Resources Corp. | Houston, TX 77002 | Oil & Gas Operator | Apr 2003 |