| 25201 | Roberts & Hammack, Inc. | Dallas, TX 75206 | Oil & Gas Operator | Dec 2025 |
| 25202 | Roberts & Murphy | | Oil & Gas Operator | Sep 1995 |
| 25203 | Roberts & Murphy, Inc. | Shreveport, LA 71137 | Oil & Gas Operator | Apr 2016 |
| 25204 | Roberts & Roberts Enterprise,Inc | Levelland, TX 79336 | Oil & Gas Operator | Jun 1996 |
| 25205 | Roberts Brothers | | Oil Operator | Oct 1993 |
| 25206 | Roberts Herman | Henderson, NV 89014 | Oil Operator | Jul 2023 |
| 25207 | Roberts Oil Corp. | | Oil & Gas Operator | Sep 1982 |
| 25208 | Roberts Resources, Inc. | Wichita, KS 67275 | Oil & Gas Operator | Jun 2025 |
| 25209 | Roberts Zetau J Fisk | Moore, OK 73160 | Oil & Gas Operator | Sep 1993 |
| 25210 | Roberts, Charles J. | Alden, NY 14004 | Gas Operator | Dec 2024 |
| 25211 | Roberts, Harry S &/Or McKinley Ray | Paintsville, KY 41240 | Oil & Gas Operator | Dec 2019 |
| 25212 | Roberts, Oliver M | | Oil & Gas Operator | Dec 2021 |
| 25213 | Roberts, Randy | Sedan, KS 67361 | Oil & Gas Operator | Jun 2025 |
| 25214 | Roberts, Robert S. Dba K & R Operating Co. | | Gas Operator | Dec 2021 |
| 25215 | Robertson Energy, LLC | | Oil & Gas Operator | Dec 2024 |
| 25216 | Robertson Farms, LLC | Calhoun, KY 42327 | Oil Operator | Dec 2023 |
| 25217 | Robertson Jay Estate | Tulsa, OK 74127-3029 | Oil & Gas Operator | Jul 2013 |
| 25218 | Robertson Johnie J | Okmulgee, OK 74447-8765 | Oil & Gas Operator | Aug 2025 |
| 25219 | Robertson Resources, Inc. | Horseshoe Bay, TX 78657 | Oil & Gas Operator | Dec 2025 |
| 25220 | Robertson* Dexter | | Gas Operator | Dec 2018 |
| 25221 | Robertson, David | Bowling Green, KY 42103 | Oil Operator | Dec 2023 |
| 25222 | Robertson, French M. Oil Co. | Abilene, TX 79608 | Oil & Gas Operator | Mar 1995 |
| 25223 | Robertson, Gene Oil Co. | Burkburnett, TX 76354 | Oil & Gas Operator | Jul 1998 |
| 25224 | Robertson, Richard | Tulsa, OK 74127 | Gas Operator | Jun 2025 |
| 25225 | Robertson, T. L. Operating Co. | Cross Plains, TX 76443 | Oil & Gas Operator | May 2004 |
| 25226 | Robertson-Bryce Management, LLC | Tyler, TX 75701 | Oil & Gas Operator | Dec 2025 |
| 25227 | Robie A. Bridges III | | Oil Operator | Aug 1993 |
| 25228 | Robin Of Perryton Corporation | Perryton, TX 79070 | Oil & Gas Operator | Dec 2025 |
| 25229 | Robin Of Perryton, Inc. | Perryton, TX 79070 | Oil & Gas Operator | Dec 1995 |
| 25230 | Robin, Jack, Co. | Corpus Chrsti, TX 78410 | Oil & Gas Operator | Dec 2017 |
| 25231 | Robinett Resources Inc. | Longview, TX 75601 | Oil & Gas Operator | Dec 1999 |
| 25232 | Robinette Oil Company LLC | Chanute, KS 66720 | Oil Operator | Jun 2025 |
| 25233 | Robinowitz Oil C | | Oil Operator | Dec 1996 |
| 25234 | Robinowitz Oil Company | Tulsa, OK 74136-1429 | Oil & Gas Operator | Feb 2023 |
| 25235 | Robinowitz Oil Company, A General Partnership | Tulsa, OK 74136 | Oil & Gas Operator | Feb 2023 |
| 25236 | Robinson Brothers Drilling Co | | Oil & Gas Operator | Jul 2002 |
| 25237 | Robinson Drilling Of Texas | Big Spring, TX 79721 | Oil & Gas Operator | Oct 1996 |
| 25238 | Robinson Energy & Exploration, Inc. | Wichita, KS 67202 | Oil & Gas Operator | Aug 2008 |
| 25239 | Robinson Engineering & Oil Company, Inc | Evansville, IN 47716 | Oil & Gas Operator | Dec 2022 |
| 25240 | Robinson Oil & Gas, Inc. | Chico, TX 76431 | Oil & Gas Operator | Aug 2003 |
| 25241 | Robinson Oil Co. | Graham, TX 76450 | Oil & Gas Operator | Dec 2025 |
| 25242 | Robinson Oil Com | | Oil & Gas Operator | Feb 1995 |
| 25243 | Robinson Oil Company, LLC | Billings, MT 59103 | Gas Operator | Dec 2015 |
| 25244 | Robinson Oil Inc | Eunice, NM 88231 | Oil & Gas Operator | Jun 2015 |
| 25245 | Robinson Operating Company | Abilene, TX 79604 | Oil & Gas Operator | Aug 2012 |
| 25246 | Robinson Resource Dev. Co.Inc. | | Oil & Gas Operator | Oct 1982 |
| 25247 | Robinson Tracy D | Duncan, OK 73534 | Oil Operator | Oct 2018 |
| 25248 | Robinson, Beryl A. | Peru, KS 67360 | Oil & Gas Operator | Mar 2012 |
| 25249 | Robinson, Gary D | | Oil Operator | Aug 2025 |
| 25250 | Robinson, Irvin | Abilene, TX 79608 | Oil & Gas Operator | May 1999 |
| 25251 | Robison, J. H. & Assoc. LTD. | Corpus Chrsti, TX 78413 | Oil & Gas Operator | Apr 1996 |
| 25252 | Robison, L. E. Oil | Yates Center, KS 66783 | Oil Operator | Sep 2001 |
| 25253 | Robl-Six, Inc. | Ellinwood, KS 67526 | Oil Operator | Dec 2019 |
| 25254 | Roblyn Oil Inc | Allen, OK 74825-6933 | Oil & Gas Operator | Apr 2025 |
| 25255 | Roblyn Petroleum Corp. | | Oil & Gas Operator | May 1983 |
| 25256 | Robson & Shults Prod Corp | Mannford, OK 74044 | Oil & Gas Operator | Jun 1995 |
| 25257 | Robson Petroleum Company | Tulsa, OK 74104 | Oil & Gas Operator | Jan 1995 |
| 25258 | Robson Resources Inc | Tulsa, OK 74104 | Oil & Gas Operator | May 1998 |
| 25259 | Robuck Petroleum, LLC | Nacogdoches, TX 75965 | Oil & Gas Operator | Dec 2025 |
| 25260 | Roc Energy, Inc. | Midland, TX 79710 | Oil & Gas Operator | Feb 2013 |
| 25261 | Roc Operating, Inc. | Plano, TX 75093 | Oil & Gas Operator | Oct 2008 |
| 25262 | Roca Operating, Inc. | Midland, TX 79702 | Oil & Gas Operator | Dec 2025 |
| 25263 | Roca Production, Inc. | Fort Worth, TX 76107 | Oil & Gas Operator | Dec 2025 |
| 25264 | Roca Resource Company, Inc. | Midland, TX 79702 | Oil & Gas Operator | Mar 2008 |
| 25265 | Rocanville Corporation | Dallas, TX 75225 | Oil & Gas Operator | Dec 2016 |
| 25266 | Rocc Oil & Gas, L.P. | Houston, TX 77084 | Oil & Gas Operator | Apr 2024 |
| 25267 | Rocc Operating, LLC | Houston, TX 77084 | Oil & Gas Operator | Dec 2025 |
| 25268 | Roche, E. Michael | Elma, NY 14059 | Gas Operator | Dec 2024 |
| 25269 | Rochelle Oil & Gas | Gillette, WY 82717 | Oil & Gas Operator | Mar 2024 |
| 25270 | Rochez, Mary B. | East Amherst, NY 14051 | Gas Operator | Dec 2024 |
| 25271 | Rocinante | Houston, TX 77058 | Oil Operator | Dec 2025 |
| 25272 | Rock Bottom Oil LLC | | Oil Operator | Dec 2024 |
| 25273 | Rock Bottom Oil, GP, L.L.C. | Nacogdoches, TX 75963 | Oil & Gas Operator | Dec 2025 |
| 25274 | Rock Creek Crude, LLC | Morrill, KS 66515 | Oil Operator | Jun 2025 |
| 25275 | Rock Creek Energy Co | Ada, OK 74820-5725 | Oil Operator | Jul 2022 |
| 25276 | Rock Creek Oil Co. | Iowa Park, TX 76367 | Oil Operator | Mar 2008 |
| 25277 | Rock Creek Oil, Inc. | Dallas, TX 75225 | Oil & Gas Operator | Nov 2019 |
| 25278 | Rock Creek Resources LLC | Englewood, CO 80112 | Oil & Gas Operator | Dec 2021 |
| 25279 | Rock Energy Operating Company | | Oil & Gas Operator | Nov 2008 |
| 25280 | Rock Energy Resources, Inc. | Houston, TX 77056 | Oil & Gas Operator | Dec 2025 |
| 25281 | Rock Energy, Inc. | | Oil & Gas Operator | Sep 1992 |
| 25282 | Rock Fish Operating LLC | McKinney, TX 75070 | Oil & Gas Operator | Dec 2025 |
| 25283 | Rock Hill Operating | Burkburnett, TX 76354 | Oil & Gas Operator | Dec 2025 |
| 25284 | Rock Oil Company | Broken Arrow, OK 74014-6106 | Oil & Gas Operator | Aug 2025 |
| 25285 | Rock Oil Corporation | Lawrence, KS 66046 | Oil Operator | Oct 2004 |
| 25286 | Rock Oil, Inc. | | Oil Operator | Nov 1989 |
| 25287 | Rock Operating | Abilene, TX 79608 | Oil & Gas Operator | Dec 2025 |
| 25288 | Rock Petroleum, LLC | Fort Worth, TX 76102 | Oil & Gas Operator | Aug 2024 |
| 25289 | Rock Resources, Inc. | Corpus Chrsti, TX 78414 | Oil & Gas Operator | Dec 2025 |
| 25290 | Rock River Operating Inc | Laramie, WY 82070 | Oil & Gas Operator | Sep 2025 |
| 25291 | Rock Solid Operating, LLC | Southlake, TX 76092 | Oil Operator | Sep 2021 |
| 25292 | Rock Well Petroleum (U.S.), Inc. | Canada, 00100 | Oil & Gas Operator | Sep 2014 |
| 25293 | Rockbridge Oil & Gas | Houston, TX 77027 | Oil & Gas Operator | Mar 1990 |
| 25294 | Rockbridge Oil And Gas, Inc. | Houston, TX 77227 | Oil & Gas Operator | Nov 1997 |
| 25295 | Rockcliff Energy Operating LLC | Houston, TX 77002 | Oil & Gas Operator | Dec 2025 |
| 25296 | Rockcliff Operating La LLC | | Oil & Gas Operator | Jul 2022 |
| 25297 | Rockcliff Operating New Mexico LLC | Houston, TX 77002 | Oil & Gas Operator | Oct 2018 |
| 25298 | Rockdale Energy, LLC | Houston, TX 77024 | Oil & Gas Operator | Dec 2020 |
| 25299 | Rockdale Marcellus LLC | Canonsburg, PA 15317 | Gas Operator | Apr 2022 |
| 25300 | Rockdale Resources Corporation | Houston, TX 77024 | Oil Operator | Jul 2016 |