| 1101 | Robert R Click | Dallas, TX 75231 | Oil & Gas Operator | Dec 1994 |
| 1102 | Robertson Resources, Inc. | Horseshoe Bay, TX 78657 | Oil & Gas Operator | Aug 2026 |
| 1103 | Robertson-Bryce Management, LLC | Tyler, TX 75701 | Oil & Gas Operator | Aug 2026 |
| 1104 | Robinson Oil Inc | Eunice, NM 88231 | Oil & Gas Operator | Jun 2015 |
| 1105 | Roc Energy, Inc. | Midland, TX 79710 | Oil & Gas Operator | Feb 2013 |
| 1106 | Roca Operating, Inc. | Midland, TX 79702 | Oil & Gas Operator | Aug 2026 |
| 1107 | Roca Production, Inc. | Fort Worth, TX 76107 | Oil & Gas Operator | Aug 2026 |
| 1108 | Rock Creek Resources LLC | Englewood, CO 80112 | Oil & Gas Operator | Dec 2021 |
| 1109 | Rockcliff Operating New Mexico LLC | Houston, TX 77002 | Oil & Gas Operator | Oct 2018 |
| 1110 | Roddy Production Company Inc | Farmington, NM 87401 | Oil & Gas Operator | Mar 2026 |
| 1111 | Roden Oil Company | Midland, TX 79702 | Oil & Gas Operator | Feb 2008 |
| 1112 | Rodney B Webb Dba Webb Oil Co | Artesia, NM 88210 | Oil & Gas Operator | Jun 2005 |
| 1113 | Roff Operating Company LLC | Houston, TX 77002 | Oil & Gas Operator | Aug 2026 |
| 1114 | Roger Slayton Dba Escudilla Oil Company | Roswell, NM 88202 | Oil Operator | Sep 2020 |
| 1115 | Rojo Grande LLC | Artesia, NM 882110248 | Oil Operator | Apr 2008 |
| 1116 | Roma Oil & Gas | San Antonio, TX 78217 | Oil & Gas Operator | Mar 1999 |
| 1117 | Ronadero Company Inc | Roswell, NM BAD ADDR | Oil & Gas Operator | Dec 1996 |
| 1118 | Ronald J Nelson | Hobbs, NM 88240 | Oil & Gas Operator | Feb 2006 |
| 1119 | Ronald L Hicks | Aztec, NM 87410 | Oil Operator | Sep 2009 |
| 1120 | Rosehill Operating Company, LLC | Houston, TX 77084 | Oil & Gas Operator | Sep 2021 |
| 1121 | Rosetta Resources Operating LP | San Antonio, TX 78216 | Oil & Gas Operator | Aug 2026 |
| 1122 | Roswell Operating, LLC | Midland, TX 79702 | Oil & Gas Operator | Oct 2019 |
| 1123 | Roughhouse Operating, LLC | Addison, TX 75001 | Oil & Gas Operator | Jun 2026 |
| 1124 | Rover Operating, LLC | Chicago, IL 60606 | Oil & Gas Operator | Jun 2026 |
| 1125 | Rover Operations Inc | Richardson, TX 75080 | Oil & Gas Operator | Sep 1998 |
| 1126 | Roy E Kimsey Jr | Midland, TX 79701 | Oil & Gas Operator | Jul 2018 |
| 1127 | Royal Oil LTD. Co. | Hobbs, NM 88241 | Oil & Gas Operator | Mar 1996 |
| 1128 | Royalty Resources, L.L.C. | Midland, TX 79702 | Oil & Gas Operator | Aug 2026 |
| 1129 | RSC Resources Limited Partnership | Midland, TX 79707 | Oil & Gas Operator | Apr 2013 |
| 1130 | Rubicon Oil & Gas, LLC | Midland, TX 79701 | Oil & Gas Operator | Aug 2026 |
| 1131 | Running Horse Production Co. | Ignacio, CO 81137 | Gas Operator | Jun 2016 |
| 1132 | Rust Oil Corp. | Fort Worth, TX 76121 | Oil & Gas Operator | Aug 2026 |
| 1133 | Ruth Oil Co, LLC | Eunice, NM 88231 | Oil Operator | Mar 2015 |
| 1134 | Ruthco Oil, LLC | Eunice, NM 88231 | Oil Operator | May 2008 |
| 1135 | RW Oil Co | Lovington, NM BAD ADDR | Oil Operator | Nov 1994 |
| 1136 | S & D Partnership | Eunice, NM 88231 | Oil Operator | Nov 2025 |
| 1137 | S & J Oil & Gas Co | Aztec, NM 87410 | Gas Operator | Aug 2022 |
| 1138 | Saba Energy Inc | Midland, TX BAD ADDR | Oil & Gas Operator | Nov 1994 |
| 1139 | Saba Energy Of Texas Inc | Houston, TX 77042 | Oil & Gas Operator | Jul 2007 |
| 1140 | Saber Oil & Gas Ventures, LLC | Midland, TX 79701 | Oil & Gas Operator | Aug 2026 |
| 1141 | Saber Resources, LLC | Midland, TX 79701 | Oil & Gas Operator | Aug 2008 |
| 1142 | Sabinal Energy Operating, LLC | Houston, TX 77002 | Oil & Gas Operator | Sep 2025 |
| 1143 | Sabre Op Inc | Wichita Falls, TX 76308 | Oil & Gas Operator | Aug 2025 |
| 1144 | Saga Petroleum Limited Liability Co. | Midland, TX 79701 | Oil & Gas Operator | Apr 2008 |
| 1145 | Sage Energy Company | San Antonio, TX 78215 | Oil & Gas Operator | Aug 2026 |
| 1146 | Sagebrush Oil Inc. | Deming, NM 88030 | Oil Operator | Jul 2026 |
| 1147 | Saguaro Petroleum, LLC | Eastland, TX 76448 | Oil & Gas Operator | Aug 2026 |
| 1148 | Sahara Operating Company | Midland, TX 79704 | Oil & Gas Operator | Aug 2026 |
| 1149 | Sam K VIersen | Okmulgee, OK 74447 | Oil & Gas Operator | Jun 1996 |
| 1150 | Samedan Oil Corporation | Houston, TX 77067 | Oil & Gas Operator | Dec 2019 |
| 1151 | Samson Hydrocarbons Company | Tulsa, OK 74103 | Oil & Gas Operator | Nov 2016 |
| 1152 | Samson Resources Company | Tulsa, OK 74103 | Oil & Gas Operator | May 2026 |
| 1153 | Samuel Dale Hughes Dba Hughes Drilling Co. | Artesia, NM 88211026 | Oil Operator | Jun 2026 |
| 1154 | San Juan Resources, Inc. | Denver, CO 80202 | Oil & Gas Operator | Jun 2026 |
| 1155 | San Juan Services, Inc. | Farmington, NM 87402 | Oil Operator | Dec 2011 |
| 1156 | San Marco Petroleum Inc | Denver, CO 80293 | Oil & Gas Operator | Apr 2026 |
| 1157 | Sandel Energy, Inc. | Huntsville, TX 77342 | Oil & Gas Operator | Apr 2004 |
| 1158 | Sandel Operating Company | Huntsville, TX 77340 | Oil & Gas Operator | Aug 2026 |
| 1159 | Sanders & Smith, L.C. | Amarillo, TX 79110 | Oil & Gas Operator | Mar 2004 |
| 1160 | Sanders Oil & Gas Co | Tyler, TX 75711 | Gas Operator | Aug 2017 |
| 1161 | Sanders Petroleum Corp | Roswell, NM 88201 | Gas Operator | Oct 1996 |
| 1162 | Sandlott Energy (Jackie Brewer Dba) | Lovington, NM 88260 | Oil & Gas Operator | Dec 2024 |
| 1163 | Sandridge Exploration And Production LLC | Oklahoma City, OK 73104 | Oil & Gas Operator | Aug 2026 |
| 1164 | Santa Fe Energy Operating Partners L P | Houston, TX 77057 | Oil & Gas Operator | Dec 1994 |
| 1165 | Santa Fe Exploration Company | Lubbock, TX 79408 | Oil & Gas Operator | Nov 1997 |
| 1166 | Santo Operating LLC | Houston, TX 77002 | Oil & Gas Operator | Aug 2026 |
| 1167 | Santo Petroleum LLC | Artesia, NM 88211 | Oil & Gas Operator | Sep 2024 |
| 1168 | Sarvis Permian Land Fund I SC, LLC | Denver, CO 80202 | Oil & Gas Operator | Jun 2026 |
| 1169 | Saxet Oil Corporation | Midland, TX 79708 | Oil & Gas Operator | Aug 2026 |
| 1170 | SBKF, LLC | Smithfield, RI 02917 | Oil & Gas Operator | Mar 2026 |
| 1171 | Schalk Development Co | Albuquerque, NM 87125 | Oil & Gas Operator | Jun 2026 |
| 1172 | Schmidt Production | Rocky Comfort, MT 64861 | Oil Operator | Sep 2015 |
| 1173 | Sco Permian, LLC | Oklahoma City, OK 73142 | Oil & Gas Operator | Jul 2026 |
| 1174 | Scorpion Oil & Gas, LLC | Houston, TX 77036 | Oil & Gas Operator | May 2026 |
| 1175 | Scott Branson | Carlsbad, NM 88221 | Oil & Gas Operator | Oct 2017 |
| 1176 | Scout Energy Management LLC | Dallas, TX 75240 | Oil & Gas Operator | Aug 2026 |
| 1177 | Scythian, LTD. | Midland, TX 79701 | Oil & Gas Operator | Dec 2020 |
| 1178 | SDG Resources L.P. | Montrose, CO 81402 | Oil & Gas Operator | May 2006 |
| 1179 | SDX Resources, Inc. | Midland, TX 79704 | Oil & Gas Operator | Aug 2026 |
| 1180 | Sea Sand Oil Company | Fort Worth, TX 76185 | Oil & Gas Operator | Jun 1995 |
| 1181 | Seattle'S Best Consulting LLC | Austin, TX 78731 | Oil & Gas Operator | Aug 2026 |
| 1182 | Seay Exploration, Inc. | Midland, TX 79704 | Oil & Gas Operator | Mar 2008 |
| 1183 | Seely Oil Company | Fort Worth, TX 76102 | Oil & Gas Operator | Aug 2026 |
| 1184 | Seguro Oil And Gas, LLC | Midland, TX 79702 | Oil & Gas Operator | Jul 2024 |
| 1185 | Sellers&Fulton Oil LLC | Artesia, NM 88210 | Oil & Gas Operator | Jun 2021 |
| 1186 | Sensor Oil & Gas, Inc. | Duncan, OK 73534 | Oil & Gas Operator | May 2013 |
| 1187 | Sep Legacy LLC | Houston, TX 77024 | Oil & Gas Operator | Jun 2026 |
| 1188 | SG Interests I LTD | Houston, TX 77007 | Oil & Gas Operator | May 2026 |
| 1189 | Shackelford Oil Co | Midland, TX 79707 | Oil & Gas Operator | Jun 2026 |
| 1190 | Shahara Oil LLC | Carlsbad, NM 88220 | Oil & Gas Operator | Oct 2000 |
| 1191 | Shell Western E&P Inc. | Houston, TX 77001 | Oil & Gas Operator | May 2011 |
| 1192 | Shenandoah Petroleum Corporation | Midland, TX 79705 | Oil & Gas Operator | Aug 2026 |
| 1193 | Sheridan Production Company, LLC | Houston, TX 77056 | Oil & Gas Operator | May 2026 |
| 1194 | Sherman F Wagenseller | Denver, CO 80210 | Gas Operator | Apr 2016 |
| 1195 | Shifflett Operating Company | Snyder, TX 79550 | Oil & Gas Operator | Aug 2026 |
| 1196 | Shinnery Oil Company, Inc. | Midland, TX 79701 | Oil & Gas Operator | Aug 2026 |
| 1197 | Shoreline Oil & Gas Company | Farmington, NM 87402 | Gas Operator | Oct 2019 |
| 1198 | Siana Operating LLC | Conroe, TX 77305224 | Oil & Gas Operator | May 2017 |
| 1199 | Sidney Lanier | Midland, TX BADADDR | Oil & Gas Operator | Jan 1996 |
| 1200 | Sierra Blanca Operating Company | Cleburne, TX BADADDR | Oil & Gas Operator | May 1999 |