| 101 | Castle Exploration Company Inc | Blue Bell, PA 19422 | Oil & Gas Operator | May 2018 |
| 102 | Caza Operating, LLC | Midland, TX 79701 | Oil & Gas Operator | Apr 2024 |
| 103 | CBS Operating Corp | Midland, TX 79702 | Oil & Gas Operator | Aug 2012 |
| 104 | Celero Energy LP | Midland, TX 79701 | Oil & Gas Operator | May 2011 |
| 105 | Central Resources Inc | Denver, CO 80203 | Oil & Gas Operator | Dec 2023 |
| 106 | CFM Oil, LLC | Artesia, NM 88210 | Oil & Gas Operator | Feb 2024 |
| 107 | Chaparral Energy, L.L.C. | Oklahoma City, OK 73142 | Oil & Gas Operator | Apr 2024 |
| 108 | Charles B Gillespie Jr | Midland, TX 79701 | Oil & Gas Operator | Jun 2001 |
| 109 | Chesapeake Operating, Inc. | Oklahoma City, OK 73154 | Oil & Gas Operator | Dec 2023 |
| 110 | Chevron Midcontinent, L.P. | Midland, TX 79706 | Oil & Gas Operator | Apr 2024 |
| 111 | Chevron USA Inc | Midland, TX 79706 | Oil & Gas Operator | Apr 2024 |
| 112 | Chi Operating, Inc. | Midland, TX 79702 | Oil & Gas Operator | Apr 2024 |
| 113 | Chisholm Energy Operating, LLC | The Woodlands, TX 77380 | Oil & Gas Operator | Sep 2022 |
| 114 | Chisos, LTD | Houston, TX 77098 | Oil & Gas Operator | Apr 2024 |
| 115 | Chuza Operating | Midland, TX 79710 | Oil & Gas Operator | Sep 2006 |
| 116 | Cibola Energy Corp | Albuquerque, NM 87103 | Oil & Gas Operator | Oct 2017 |
| 117 | Cimarex Energy Co | Midland, TX 79706 | Oil & Gas Operator | Apr 2024 |
| 118 | Cimarex Energy Co. Of Colorado | Midland, TX 79706 | Oil & Gas Operator | Apr 2024 |
| 119 | Citation Oil & Gas Corp. | Houston, TX 77269 | Oil & Gas Operator | Apr 2024 |
| 120 | Civitas Permian Operating, LLC | Denver, CO 80202 | Oil & Gas Operator | Apr 2024 |
| 121 | Claco Oil Co | Artesia, NM 88210 | Oil & Gas Operator | Dec 2014 |
| 122 | Clayton Williams Energy, Inc. | Houston, TX 77070 | Oil & Gas Operator | Apr 2017 |
| 123 | CML Exploration, LLC | Austin, TX 78746 | Oil & Gas Operator | Apr 2024 |
| 124 | Coastal Management Corporation | Midland, TX 79702 | Oil & Gas Operator | Mar 2008 |
| 125 | COG Operating LLC | Midland, TX 79701 | Oil & Gas Operator | Apr 2024 |
| 126 | COG Production LLC | Midland, TX 79701 | Oil & Gas Operator | Feb 2024 |
| 127 | Colgate Operating, LLC | Midland, TX 79701 | Oil & Gas Operator | Jan 2024 |
| 128 | Collins & Ware, Inc. | Midland, TX 79701 | Oil & Gas Operator | Aug 2003 |
| 129 | Concho Exploration | Midland, TX 79701 | Oil & Gas Operator | Feb 2004 |
| 130 | Concho Resources Inc. | Oklahoma City, OK 73154 | Oil & Gas Operator | Mar 2004 |
| 131 | Conoco Inc. | Houston, TX 77252 | Oil & Gas Operator | Mar 2015 |
| 132 | ConocoPhillips Company | Midland, TX 79701 | Oil & Gas Operator | Apr 2024 |
| 133 | Contango Resources LLC | Houston, TX 77002 | Oil & Gas Operator | Apr 2024 |
| 134 | Corinne Grace | Carlsbad, NM 88220 | Oil & Gas Operator | Jan 2011 |
| 135 | Corkran Energy, LP | Ignacio, CO 81137 | Oil & Gas Operator | May 2013 |
| 136 | Costilla Energy Inc | Midland, TX 79702 | Oil & Gas Operator | Mar 2008 |
| 137 | Crump Petroleum Corp | Midland, TX 79710 | Oil & Gas Operator | Feb 1999 |
| 138 | Curtis Hankamer | Houston, TX 77024 | Oil & Gas Operator | Jun 1997 |
| 139 | Dakota Resources, Inc | Midland, TX 79707 | Oil & Gas Operator | Nov 2023 |
| 140 | Dalen Resources Oil & Gas Co. | Dallas, TX 75206 | Oil & Gas Operator | Jun 2010 |
| 141 | David G Hammond | Artesia, NM 88211 | Oil Operator | May 2013 |
| 142 | David H Arrington Oil & Gas Inc | Midland, TX 79701 | Oil & Gas Operator | Feb 2024 |
| 143 | Delta Petroleum Corp | Denver, CO 80202 | Oil & Gas Operator | Dec 2023 |
| 144 | Dennis Langlitz | Carlsbad, NM 88220 | Oil Operator | Jul 2009 |
| 145 | Devon Energy Operating Co., L.P. | Oklahoma City, OK 73102 | Oil & Gas Operator | Jun 2009 |
| 146 | Devon Energy Operating Corp | Oklahoma City, OK 73102 | Oil & Gas Operator | Apr 2013 |
| 147 | Devon Energy Production Co | Oklahoma City, OK 73102 | Oil & Gas Operator | Jul 2015 |
| 148 | Devon Energy Production Company LP | Oklahoma City, OK 73102 | Oil & Gas Operator | Apr 2024 |
| 149 | Devon Louisiana Corporation | Houston, TX 77002 | Oil & Gas Operator | Oct 2019 |
| 150 | Devon SFS Operating Inc | Oklahoma City, OK 73102 | Oil & Gas Operator | Mar 2008 |
| 151 | Dickson Petroleum | Midland, TX 79710 | Oil & Gas Operator | Nov 1998 |
| 152 | Dinero Operating Co | Midland, TX 79702 | Oil & Gas Operator | Apr 2024 |
| 153 | Discovery Operating Inc | Midland, TX 79705 | Oil & Gas Operator | Apr 2024 |
| 154 | DMS Oil Company | Houston, TX 77042 | Oil & Gas Operator | Jan 2024 |
| 155 | Dominion Exploration & Production Inc | Houston, TX 77060 | Oil & Gas Operator | Apr 2015 |
| 156 | Dominion Oklahoma Texas Expl & Prod Inc | Oklahoma City, OK 73134 | Oil & Gas Operator | Aug 2013 |
| 157 | Doral Energy Corp. | Midland, TX 79708 | Oil & Gas Operator | Jun 2012 |
| 158 | Dorothy Boyce | Artesia, NM 88210 | Oil & Gas Operator | Sep 2000 |
| 159 | Douglas Oil & Gas LP | State College, PA 16803 | Oil & Gas Operator | Dec 2007 |
| 160 | Doyle Hartman | Midland, TX 79702 | Oil & Gas Operator | Nov 2005 |
| 161 | Durham, Inc. | Midland, TX 79701 | Oil & Gas Operator | Jul 2016 |
| 162 | Dwight A Tipton | Lovington, NM 88260 | Oil & Gas Operator | Aug 2023 |
| 163 | E.G.L. Resources, Inc. | Midland, TX 79702 | Oil & Gas Operator | Jan 2024 |
| 164 | Earnest Producing Corporation | Midland, TX 79704 | Oil & Gas Operator | Apr 2024 |
| 165 | Earthstone Operating, LLC | The Woodlands, TX 77380 | Oil & Gas Operator | Apr 2024 |
| 166 | Eastland Oil Company, The | Midland, TX 79702 | Oil & Gas Operator | Apr 2024 |
| 167 | Echo Production Inc | Graham, TX 76450 | Oil & Gas Operator | Apr 2024 |
| 168 | Edge Petroleum Oper. Co., Inc. | Houston, TX 77042 | Oil & Gas Operator | Nov 2010 |
| 169 | Edmar Company, L.L.C. | Midland, TX 79702 | Oil & Gas Operator | Feb 2020 |
| 170 | El Ran, Inc. | Lubbock, TX 79408 | Oil & Gas Operator | Apr 2024 |
| 171 | Elliott Oil Co | Roswell, NM 88202 | Oil & Gas Operator | Nov 2001 |
| 172 | Emkey Companies, LLC | Dallas, TX 75251 | Oil & Gas Operator | May 2016 |
| 173 | Encore Operating LP | Plano, TX 75024 | Oil & Gas Operator | Jan 2024 |
| 174 | Endeavor Energy Resources, LP | Midland, TX 79701 | Oil & Gas Operator | Apr 2024 |
| 175 | Endurance Resources LLC | Addison, TX 75001 | Oil & Gas Operator | Apr 2017 |
| 176 | Energy Reserves Group | Houston, TX 770563020 | Oil & Gas Operator | Apr 1996 |
| 177 | Energyquest II, LLC | The Woodlands, TX 77381 | Oil & Gas Operator | Dec 2023 |
| 178 | Enerstar Resources LTD Co. | Midland, TX 79701 | Oil & Gas Operator | Jun 2000 |
| 179 | Enervest Operating LLC | Houston, TX 77002 | Oil & Gas Operator | Apr 2024 |
| 180 | Enserch Exploration Inc | Dallas, TX 75206 | Oil & Gas Operator | Apr 2015 |
| 181 | EOG A Resources, Inc. | Artesia, NM 88210 | Oil & Gas Operator | Dec 2018 |
| 182 | EOG M Resources, Inc. | Artesia, NM 88211 | Oil & Gas Operator | Dec 2018 |
| 183 | EOG Resources Inc | Midland, TX 79702 | Oil & Gas Operator | Apr 2024 |
| 184 | EOG Y Resources Inc | Artesia, NM 88210 | Oil & Gas Operator | Feb 2019 |
| 185 | Ers Resources, LLC | Irving, TX 75038 | Oil Operator | Sep 2010 |
| 186 | Evergreen Operating Corp | Denver, CO 80202 | Oil & Gas Operator | Dec 2019 |
| 187 | Exco Resources Inc | Dallas, TX 75251 | Oil & Gas Operator | Dec 2023 |
| 188 | Extex Operating Company | Houston, TX 77057 | Oil & Gas Operator | Apr 2024 |
| 189 | Exxon Mobil Corporation | Spring, TX 77389 | Oil & Gas Operator | Apr 2024 |
| 190 | Fae II Operating LLC | Houston, TX 77079 | Oil & Gas Operator | Feb 2024 |
| 191 | Fair Oil, LTD. | Tyler, TX 75710 | Oil & Gas Operator | Apr 2024 |
| 192 | Fairway Resources Operating, LLC | Southlake, TX 76092 | Oil & Gas Operator | Aug 2022 |
| 193 | Famcor Oil, Inc. | Scottsdale, AZ 85260 | Oil & Gas Operator | Sep 2020 |
| 194 | Fasken Oil And Ranch, LTD. | Midland, TX 79707 | Oil & Gas Operator | Apr 2024 |
| 195 | Fe-NM, LLC | Tyler, TX 75711 | Oil & Gas Operator | Feb 2024 |
| 196 | Fi-Ro Corporation | Natchez, MS BADADDR | Oil & Gas Operator | Nov 2001 |
| 197 | Fina Oil & Chemical | Midland, TX 797022455 | Oil & Gas Operator | Apr 1999 |
| 198 | Finaly Resources LLC | Sunset Beach, CA 90742 | Oil & Gas Operator | Apr 2024 |
| 199 | Finley Resources Inc | Fort Worth, TX 76113 | Oil & Gas Operator | Apr 2024 |
| 200 | Flare Oil Inc | Rockport, TX 78382 | Oil & Gas Operator | Apr 2024 |