101 | D90 Energy, LLC | Austin, TX 78746 | Oil & Gas Operator | Apr 2024 |
102 | Dalen Resources Oil & Gas Co. | Dallas, TX 75206 | Oil & Gas Operator | Jun 2010 |
103 | Dallas Petroleum Group, LLC | Dallas, TX 75379 | Oil & Gas Operator | Apr 2024 |
104 | Davis Petroleum Corp. | Houston, TX 77027 | Oil & Gas Operator | Apr 2024 |
105 | DCP Operating Co LP | Houston, TX 77042 | Oil & Gas Operator | Jan 2024 |
106 | Deguello Operating LLC | Kilgore, TX 75663 | Oil & Gas Operator | Apr 2024 |
107 | Delray Oil, Inc. | San Antonio, TX 78209 | Oil & Gas Operator | Apr 2024 |
108 | Denali Oil & Gas Management, LLC | Houston, TX 77060 | Oil & Gas Operator | Dec 2012 |
109 | Denovo Oil & Gas, Inc. | Houston, TX 77210 | Oil & Gas Operator | May 1995 |
110 | Devon Energy Operating Co., L.P. | Oklahoma City, OK 73102 | Oil & Gas Operator | Jun 2009 |
111 | Devon Energy Production Company LP | Oklahoma City, OK 73102 | Oil & Gas Operator | Apr 2024 |
112 | Devon Louisiana Corporation | Houston, TX 77002 | Oil & Gas Operator | Oct 2019 |
113 | Dewbre Petroleum Corporation | Corpus Chrsti, TX 78401 | Oil & Gas Operator | Apr 2024 |
114 | Dimock Operating Company | Wichita Falls, TX 76308 | Oil & Gas Operator | Apr 2024 |
115 | Dinero Oil Corporation | Corpus Chrsti, TX 78460 | Oil & Gas Operator | Nov 1999 |
116 | Discorbis Oil Company | San Antonio, TX 78217 | Oil & Gas Operator | Jul 2019 |
117 | Dominion Exploration & Production Inc | Houston, TX 77060 | Oil & Gas Operator | Apr 2015 |
118 | Dominion Oklahoma Texas E&P, Inc | Richmond, VA 23219 | Oil & Gas Operator | Sep 2018 |
119 | Dorado Drilling, Inc. | Gulfport, MS 39501 | Oil & Gas Operator | Apr 2024 |
120 | Dorado Oil Company | Corpus Chrsti, TX 78403 | Oil & Gas Operator | Dec 2014 |
121 | Double Play Oil & Gas, Inc | Portland, TX 78374 | Oil & Gas Operator | Apr 2024 |
122 | Dreyfus, Louis Natural Gas Corp | Oklahoma City, OK 73134 | Oil & Gas Operator | Nov 2001 |
123 | Eagle Oil & Gas Co. | Dallas, TX 75225 | Oil & Gas Operator | Apr 2024 |
124 | Edge Petroleum Oper. Co., Inc. | Houston, TX 77042 | Oil & Gas Operator | Nov 2010 |
125 | Eex Corporation | Houston, TX 77060 | Oil & Gas Operator | Feb 2000 |
126 | Eex E&P Company, L.P. | Houston, TX 77060 | Oil & Gas Operator | Jul 2003 |
127 | Eex Operating, L.P. | Houston, TX 77060 | Oil & Gas Operator | Jul 2003 |
128 | Egan Resources Inc. | Katy, TX 77494 | Oil & Gas Operator | Oct 2016 |
129 | El Paso E&P Company, L.P. | Houston, TX 77002 | Oil & Gas Operator | Mar 2013 |
130 | El Paso Production Company | Houston, TX 77002 | Oil & Gas Operator | Mar 2016 |
131 | El Paso Production Oil & Gas Co. | Houston, TX 77252 | Oil & Gas Operator | Apr 2024 |
132 | El Reno Energy, LLC | Granbury, TX 76048 | Oil & Gas Operator | Apr 2024 |
133 | Energy + Savings, L.L.C. | Alamo, TX 78516 | Oil & Gas Operator | Jan 2008 |
134 | Energy Development Corporation | Houston, TX 77067 | Oil & Gas Operator | Dec 2023 |
135 | Enron Oil & Gas Company | Houston, TX 77210 | Oil & Gas Operator | Dec 1999 |
136 | Enserch Exploration Inc | Dallas, TX 75206 | Oil & Gas Operator | Apr 2015 |
137 | EOG Resources Inc | Midland, TX 79702 | Oil & Gas Operator | Apr 2024 |
138 | EP Energy E&P Company, LP | Houston, TX 77210 | Oil & Gas Operator | May 2022 |
139 | Erskine Energy, LLC | H SPG NTL PK, AR 71909 | Oil & Gas Operator | Apr 2024 |
140 | Erskine Operating LLC | Houston, TX 77079 | Oil & Gas Operator | Dec 2007 |
141 | Escudo Oil & Gas, LLC | Houston, TX 77006 | Oil & Gas Operator | Apr 2024 |
142 | Esenjay Petroleum Corp. | Corpus Chrsti, TX 78471 | Oil & Gas Operator | Jul 1998 |
143 | Export Petroleum Corporation | Fort Worth, TX 76147 | Oil & Gas Operator | Apr 2024 |
144 | Extenergy, L.P. | The Woodlands, TX 77380 | Oil & Gas Operator | Dec 2014 |
145 | Exxon Corporation | Houston, TX 77210 | Oil & Gas Operator | Dec 2023 |
146 | Exxon Mobil Corporation | Spring, TX 77389 | Oil & Gas Operator | Apr 2024 |
147 | Falcon Production Co. | Floresville, TX 78114 | Oil & Gas Operator | Apr 2024 |
148 | Fargo Oil & Gas, LLC | McAllen, TX 78504 | Oil & Gas Operator | Apr 2024 |
149 | Faulconer Energy, LLC | Tyler, TX 75711 | Oil & Gas Operator | Apr 2024 |
150 | Faulconer Vernon E Inc | Tyler, TX 75711 | Oil & Gas Operator | Feb 2024 |
151 | Fidelity Explor. & Prod. Co. | Denver, CO 80202 | Oil & Gas Operator | Nov 2015 |
152 | Fields Exploration, Inc. | Corpus Chrsti, TX 78401 | Oil & Gas Operator | Aug 2015 |
153 | Fina Oil And Chemical Company | Dallas, TX 75221 | Oil & Gas Operator | May 2019 |
154 | Firstrike Energy Corporation | Cleburne, TX 76033 | Oil & Gas Operator | Apr 2024 |
155 | Five-Jab, Inc. | Tomball, TX 77377 | Oil & Gas Operator | Apr 2024 |
156 | Flairtex Resources, Inc. | Houston, TX 77040 | Oil & Gas Operator | Oct 1998 |
157 | Fletcher Operating, LLC | Fairhope, AL 36533 | Oil & Gas Operator | Apr 2024 |
158 | Flournoy Production Co. | Alice, TX 78333 | Oil & Gas Operator | Dec 2002 |
159 | Fordyce Oil & Gas | Sullivan City, TX 78595 | Oil & Gas Operator | Jul 2022 |
160 | Forest Oil Corporation | Houston, TX 77002 | Oil & Gas Operator | Mar 2015 |
161 | Fortune Resources LLC | Longview, TX 75604 | Oil & Gas Operator | Apr 2024 |
162 | Foundation Energy Management, LLC | Addison, TX 75001 | Oil & Gas Operator | Apr 2024 |
163 | Fox, Hewitt B., Inc. | Corpus Chrsti, TX 78411 | Oil & Gas Operator | Apr 2024 |
164 | Franklin, J.W. Oil Operator | | Oil & Gas Operator | Nov 2001 |
165 | Frisco Oil Corporation | Tyler, TX 75701 | Oil & Gas Operator | Mar 2000 |
166 | Galilee Oil Investments LLC | San Antonio, TX 78205 | Oil & Gas Operator | Apr 2024 |
167 | Gardner Energy Corporation | Houston, TX 77024 | Oil & Gas Operator | Mar 1999 |
168 | Genesis Crude Oil LP | Houston, TX 77002 | Oil & Gas Operator | Apr 2000 |
169 | Gennesaret Investments, LLC | Burleson, TX 76028 | Oil & Gas Operator | Apr 2024 |
170 | Gillring Oil Company | Fort Worth, TX 76102 | Oil & Gas Operator | May 1994 |
171 | Goldking Prod. Co. | Houston, TX 77002 | Oil & Gas Operator | Apr 1998 |
172 | Graham Royalty LTD | Covington, LA 70434 | Oil & Gas Operator | Jul 2007 |
173 | Greehey And Company LTD | San Antonio, TX 78216 | Oil & Gas Operator | May 2020 |
174 | Green Exploration Company | Austin, TX 78711 | Oil & Gas Operator | Apr 2024 |
175 | Greenbriar Energy Inc. | Houston, TX 77098 | Oil & Gas Operator | Feb 2004 |
176 | Greenbrier Oper. Co. | Dallas, TX 75229 | Oil & Gas Operator | Feb 2001 |
177 | Grizzly Op Of Delaware, LLC | Houston, TX 77057 | Oil & Gas Operator | Mar 2021 |
178 | Gruy Petroleum Management Co. | Irving, TX 75014 | Oil & Gas Operator | Nov 2014 |
179 | Gulfmark Energy Inc | Houston, TX 77001 | Gas Operator | Apr 2023 |
180 | Hamilton Brothers Oil Co. | Houston, TX 77057 | Oil & Gas Operator | Mar 2015 |
181 | Hampton Resources Corporation | Houston, TX 77010 | Oil & Gas Operator | Mar 1996 |
182 | Hanna Oil And Gas Company | Fort Smith, AR 72901 | Oil & Gas Operator | Feb 2024 |
183 | Hanson Minerals Co. | Houston, TX 77042 | Oil & Gas Operator | Oct 1993 |
184 | Hanson Production Company | Cuero, TX 77954 | Oil & Gas Operator | Jul 2009 |
185 | Hardwick Oil Company | Sugar Land, TX 77478 | Oil & Gas Operator | Nov 2014 |
186 | Hawn Brothers | Corpus Chrsti, TX 78401 | Oil & Gas Operator | Apr 2003 |
187 | Hawn Brothers Company | Corpus Chrsti, TX 78401 | Oil & Gas Operator | Jan 2003 |
188 | Headington Energy Partners, LLC | Corpus Chrsti, TX 78401 | Oil & Gas Operator | Apr 2024 |
189 | Headington Oil Company | Dallas, TX 75231 | Oil & Gas Operator | Dec 2016 |
190 | Headington Oil Company LLC | Dallas, TX 75204 | Oil & Gas Operator | Apr 2016 |
191 | Headington Oil Company, L.P. | Dallas, TX 75231 | Oil & Gas Operator | Mar 2008 |
192 | Heritage Operating Co., Inc. The | Stafford, TX 77497 | Oil & Gas Operator | May 1997 |
193 | Hibbard Energy, LP | Whitehouse, TX 75791 | Oil & Gas Operator | Apr 2024 |
194 | Hilcorp Energy Company | Houston, TX 77208 | Oil & Gas Operator | Apr 2024 |
195 | Hope Production, Inc. | Edinburg, TX 78540 | Oil & Gas Operator | Jan 2000 |
196 | Houston Oil & Minerals Corp. | Houston, TX 77002 | Oil & Gas Operator | Aug 1996 |
197 | Houston Resources Corp. | Houston, TX 77002 | Oil & Gas Operator | Apr 2003 |
198 | Howard Exploration, Inc. | Houston, TX 77069 | Oil & Gas Operator | Apr 2024 |
199 | Huber J M Corp | Edison, NJ 08837 | Oil & Gas Operator | Apr 2024 |
200 | Hughes, Dan A. Company | Beeville, TX 78104 | Oil & Gas Operator | May 2006 |