101 | Caspen Operating Company | Somerset, TX 78069 | Oil & Gas Operator | Mar 2008 |
102 | Century Resources, Inc. | Houston, TX 77056 | Oil & Gas Operator | Apr 2024 |
103 | Chaparral Natural Resources,Inc. | Austin, TX 78746 | Oil & Gas Operator | Apr 2024 |
104 | Chesapeake Operating, Inc. | Oklahoma City, OK 73154 | Oil & Gas Operator | Dec 2023 |
105 | Chesapeake Operating, LLC | Oklahoma City, OK 73154 | Oil & Gas Operator | Apr 2024 |
106 | Chevron USA Inc | Midland, TX 79706 | Oil & Gas Operator | Apr 2024 |
107 | Cheyenne Petroleum Company | Oklahoma City, OK 73134 | Oil & Gas Operator | Apr 2024 |
108 | Chmelar, Eugene Oil & Gas | Caldwell, TX 77836 | Oil & Gas Operator | Apr 2024 |
109 | Christico Petroleum Company | San Antonio, TX 78216 | Oil & Gas Operator | Apr 2024 |
110 | Cico Oil & Gas Company | Houston, TX 77057 | Oil & Gas Operator | Aug 2019 |
111 | Cinco Natural Resources Corp | La Grange, TX 78945 | Oil & Gas Operator | Apr 2024 |
112 | Cinco Oil & Gas, LLC | Dallas, TX 75204 | Oil & Gas Operator | Apr 2024 |
113 | Civron Petroleum Res., LLC | San Antonio, TX 78229 | Oil & Gas Operator | Apr 2024 |
114 | Clamp Operating | San Antonio, TX 78264 | Oil & Gas Operator | Apr 2002 |
115 | Clamp Operating Incorporated | San Antonio, TX 78264 | Oil & Gas Operator | Mar 2011 |
116 | Clark, G. A., Trustee | San Antonio, TX 78210 | Oil & Gas Operator | Nov 2017 |
117 | Clipper Operating Co., Inc. | San Antonio, TX 78209 | Oil & Gas Operator | Jan 2000 |
118 | CM TX Production, LLC | Lakewood, CO 80228 | Oil & Gas Operator | Feb 2023 |
119 | Cody Energy LLC | Houston, TX 77024 | Oil & Gas Operator | Jun 2020 |
120 | Cody Energy, Inc. | Houston, TX 77077 | Oil & Gas Operator | Feb 2024 |
121 | Cole, Frank W Engineering | Dallas, TX 75254 | Oil & Gas Operator | Mar 2006 |
122 | Cologne Production Company | San Antonio, TX 78209 | Oil & Gas Operator | Nov 2014 |
123 | Columbia Energy Properties, Inc. | Baytown, TX 77521 | Oil & Gas Operator | Jul 2004 |
124 | Comanche Well Service Corp. | Plano, TX 75093 | Oil & Gas Operator | Apr 2024 |
125 | Comstock Oil & Gas, LP | Frisco, TX 75034 | Oil & Gas Operator | Aug 2019 |
126 | Conoco Inc. | Houston, TX 77252 | Oil & Gas Operator | Mar 2015 |
127 | Core E & P Corp. | Victoria, TX 77902 | Oil & Gas Operator | Apr 2024 |
128 | Corpus Christi Leaseholds, Inc. | Corpus Chrsti, TX 78403 | Oil & Gas Operator | Sep 1996 |
129 | Corsicana Field Fund | Corsicana, TX 75110 | Oil & Gas Operator | Dec 1993 |
130 | Cottonwood Resources, Inc. | Kilgore, TX 75663 | Oil & Gas Operator | Aug 2003 |
131 | Creative Oil And Gas Op II, LLC | Giddings, TX 78942 | Oil Operator | Apr 2024 |
132 | Cummins & Walker Oil Co., Inc. | Austin, TX 78746 | Oil & Gas Operator | Jan 2021 |
133 | D.C. Oil | Natalia, TX 78059 | Oil Operator | Apr 2024 |
134 | Dale Operating Company | Dallas, TX 75201 | Oil & Gas Operator | Feb 2019 |
135 | Dawsey Operating Company | Georgetown, TX 78628 | Oil & Gas Operator | Mar 2016 |
136 | Daylight Petroleum LLC | Houston, TX 77052 | Oil & Gas Operator | Apr 2024 |
137 | DCP Operating Co LP | Houston, TX 77042 | Oil & Gas Operator | Jan 2024 |
138 | Deep Rock Resources, Inc. | Dallas, TX 75206 | Oil & Gas Operator | Apr 2024 |
139 | Delcar, Inc. | San Antonio, TX 78209 | Oil & Gas Operator | Oct 1995 |
140 | Delgado, Emil A | San Antonio, TX 78223 | Oil & Gas Operator | Sep 2016 |
141 | Delray Oil, Inc. | San Antonio, TX 78209 | Oil & Gas Operator | Apr 2024 |
142 | Delta Exploration Company Inc | Denver, CO 80202 | Oil & Gas Operator | Apr 2024 |
143 | Devon Energy Corp (Nevada) | Oklahoma City, OK 73102 | Oil & Gas Operator | Feb 2017 |
144 | Dewbre Petroleum Corporation | Corpus Chrsti, TX 78401 | Oil & Gas Operator | Apr 2024 |
145 | Diamond Energy Services, LP | Tulsa, OK 74103 | Oil Operator | Apr 2024 |
146 | Dickson Petroleum, Inc. | Midland, TX 79710 | Oil & Gas Operator | May 2000 |
147 | Dirnett, Inc. | Tuleta, TX 78162 | Oil & Gas Operator | Apr 2024 |
148 | Discorbis Oil Company | San Antonio, TX 78217 | Oil & Gas Operator | Jul 2019 |
149 | Discovery Petroleum, L.L.C. | Alice, TX 78333 | Oil & Gas Operator | Apr 2024 |
150 | DKW Energy, Inc. | Sherman Oaks, CA 91403 | Oil & Gas Operator | Apr 2024 |
151 | Dodson, Inc. | San Antonio, TX 78232 | Oil & Gas Operator | Oct 1998 |
152 | Dorado Oil Company | Corpus Chrsti, TX 78403 | Oil & Gas Operator | Dec 2014 |
153 | Dorchester Operating Company LLC | Refugio, TX 78377 | Oil & Gas Operator | Apr 2024 |
154 | Double Play Oil & Gas, Inc | Portland, TX 78374 | Oil & Gas Operator | Apr 2024 |
155 | Drachen Oil Company | San Antonio, TX 78258 | Oil & Gas Operator | Apr 2024 |
156 | Duplantis Energy, LLC | Pleasanton, TX 78064 | Oil Operator | Apr 2024 |
157 | Dynamic Production, Inc. | Fort Worth, TX 76106 | Oil & Gas Operator | Apr 2024 |
158 | E P C Oil & Gas, Inc. | Caldwell, TX 77836 | Oil & Gas Operator | Apr 2024 |
159 | E.A.T.E. Operating | Natalia, TX 78059 | Oil & Gas Operator | Apr 2024 |
160 | Eagle Ford Hunter Resources,Inc. | Houston, TX 77024 | Oil & Gas Operator | Apr 2013 |
161 | Eagle Ford Oil Co., Inc. | Houston, TX 77057 | Oil & Gas Operator | Apr 2024 |
162 | Eagle Rock Operating Company,LLC | Houston, TX 77252 | Oil & Gas Operator | Oct 2015 |
163 | Earthstone Operating, LLC | The Woodlands, TX 77380 | Oil & Gas Operator | Apr 2024 |
164 | Eei Operating Inc | Plano, TX 75093 | Oil & Gas Operator | May 2015 |
165 | Eex Corporation | Houston, TX 77060 | Oil & Gas Operator | Feb 2000 |
166 | Eex Operating, L.P. | Houston, TX 77060 | Oil & Gas Operator | Jul 2003 |
167 | Ef Energy, L.L.C. | Houston, TX 77084 | Oil & Gas Operator | Jun 2015 |
168 | Eise Oil, Inc. | San Antonio, TX 78213 | Oil Operator | Apr 2024 |
169 | El Paso E&P Company, L.P. | Houston, TX 77002 | Oil & Gas Operator | Mar 2013 |
170 | Ellsworth, H. P. O&G Properties | Corpus Chrsti, TX 78413 | Oil & Gas Operator | Apr 2024 |
171 | Emerald Bay Energy, Inc. | San Antonio, TX 78230 | Oil Operator | Apr 2024 |
172 | Emerson Oil Company | Rindge, NH 03461 | Oil & Gas Operator | Feb 2008 |
173 | Encana Oil & Gas (USA) Inc. | Denver, CO 80202 | Oil & Gas Operator | Oct 2020 |
174 | Endeavor Natural Gas, LP | Houston, TX 77002 | Oil & Gas Operator | Apr 2024 |
175 | Energy Equity Company | Columbus, MT 59019 | Oil & Gas Operator | Feb 2024 |
176 | Energy Resources Oil & Gas Corp. | Amarillo, TX 79102 | Oil & Gas Operator | Jun 1994 |
177 | Energy Transfer Fuel, LP | Houston, TX 77002 | Oil & Gas Operator | Apr 2005 |
178 | Energypro, Inc. | Magnolia, TX 77354 | Oil & Gas Operator | Apr 2024 |
179 | Enervest Operating LLC | Houston, TX 77002 | Oil & Gas Operator | Apr 2024 |
180 | Enhanced Energy Partners Corp | Tomball, TX 77377 | Oil & Gas Operator | Apr 2024 |
181 | Enron Oil & Gas Company | Houston, TX 77210 | Oil & Gas Operator | Dec 1999 |
182 | Enserch Exploration Inc | Dallas, TX 75206 | Oil & Gas Operator | Apr 2015 |
183 | Enterprise Crude Oil LLC | Oklahoma City, OK 73102 | Oil Operator | Aug 2011 |
184 | EOG Resources Inc | Midland, TX 79702 | Oil & Gas Operator | Apr 2024 |
185 | EP Energy E&P Company, LLC | Houston, TX 77210 | Oil & Gas Operator | Apr 2024 |
186 | EP Energy E&P Company, LP | Houston, TX 77210 | Oil & Gas Operator | May 2022 |
187 | EP Operating Limited Partnership | Dallas, TX 75201 | Oil & Gas Operator | Feb 1995 |
188 | Escondido Operating, Inc. | Carrollton, TX 75011 | Oil & Gas Operator | Jun 2013 |
189 | Esenjay Petroleum Corp. | Corpus Chrsti, TX 78471 | Oil & Gas Operator | Jul 1998 |
190 | Etc Field Services LLC | San Antonio, TX 78258 | Oil Operator | Jun 2018 |
191 | Etc Texas Pipeline, LTD. | San Antonio, TX 78258 | Oil Operator | Sep 2023 |
192 | Everett Oil | San Antonio, TX 78258 | Oil & Gas Operator | Apr 2015 |
193 | Everett Oil, Inc. | San Antonio, TX 78258 | Oil Operator | Apr 2024 |
194 | Excalibur E & P, LLC | Johnson City, TX 78636 | Oil & Gas Operator | Apr 2024 |
195 | Export Petroleum Corporation | Fort Worth, TX 76147 | Oil & Gas Operator | Apr 2024 |
196 | Exxon Corporation | Houston, TX 77210 | Oil & Gas Operator | Dec 2023 |
197 | Exxon Mobil Corporation | Spring, TX 77389 | Oil & Gas Operator | Apr 2024 |
198 | Fina Oil And Chemical Company | Dallas, TX 75221 | Oil & Gas Operator | May 2019 |
199 | Finger Oil & Gas, Inc. | Castroville, TX 78009 | Oil & Gas Operator | May 2021 |
200 | First Rock, Inc. | Corpus Chrsti, TX 78401 | Oil & Gas Operator | Apr 2024 |