| 1301 | Roberts, Robert S. Dba K & R Operating Co. | | Gas Operator | Dec 2021 |
| 1302 | Roberts, Wayne & Janet | | Oil & Gas Operator | Dec 2021 |
| 1303 | Robertson Energy, LLC | | Oil & Gas Operator | Dec 2023 |
| 1304 | Robertson Farms, LLC | Calhoun, KY 42327 | Oil Operator | Dec 2022 |
| 1305 | Robertson Jay Estate | Tulsa, OK 74127-3029 | Oil & Gas Operator | Jul 2013 |
| 1306 | Robertson Johnie J | Okmulgee, OK 74447-8765 | Oil & Gas Operator | Jan 2024 |
| 1307 | Robertson Resources, Inc. | Midland, TX 79708 | Oil & Gas Operator | Apr 2024 |
| 1308 | Robertson Wayne H | Elkhart, KS 67590 | Oil Operator | Dec 2012 |
| 1309 | Robertson, David | Bowling Green, KY 42103 | Oil Operator | Dec 2022 |
| 1310 | Robertson, French M. Oil Co. | Abilene, TX 79608 | Oil & Gas Operator | Mar 1995 |
| 1311 | Robertson, Gene Oil Co. | Burkburnett, TX 76354 | Oil & Gas Operator | Jul 1998 |
| 1312 | Robertson, Richard | Tulsa, OK 74127 | Gas Operator | Dec 2023 |
| 1313 | Robertson, T. L. Operating Co. | Cross Plains, TX 76443 | Oil & Gas Operator | May 2004 |
| 1314 | Robertson-Bryce Management, LLC | Tyler, TX 75701 | Oil & Gas Operator | Apr 2024 |
| 1315 | Robie A. Bridges III | | Oil Operator | Aug 1993 |
| 1316 | Robin Of Perryton Corporation | Perryton, TX 79070 | Oil & Gas Operator | Apr 2024 |
| 1317 | Robin Of Perryton, Inc. | Perryton, TX 79070 | Oil & Gas Operator | Dec 1995 |
| 1318 | Robin, Jack, Co. | Corpus Chrsti, TX 78410 | Oil & Gas Operator | Dec 2017 |
| 1319 | Robinett Resources Inc. | Longview, TX 75601 | Oil & Gas Operator | Dec 1999 |
| 1320 | Robinette Oil Company LLC | Chanute, KS 66720 | Oil Operator | Dec 2023 |
| 1321 | Robinowitz Oil C | | Oil Operator | Dec 1996 |
| 1322 | Robinowitz Oil Company | Tulsa, OK 74136-1429 | Oil & Gas Operator | Feb 2023 |
| 1323 | Robinowitz Oil Company, A General Partnership | Tulsa, OK 74136 | Oil & Gas Operator | Feb 2023 |
| 1324 | Robinson Brothers Drilling Co | | Oil & Gas Operator | Jul 2002 |
| 1325 | Robinson Drilling Of Texas | Big Spring, TX 79721 | Oil & Gas Operator | Oct 1996 |
| 1326 | Robinson Energy & Exploration, Inc. | Wichita, KS 67202 | Oil & Gas Operator | Aug 2008 |
| 1327 | Robinson Engineering & Oil Company, Inc | Evansville, IN 47716 | Oil & Gas Operator | Dec 2022 |
| 1328 | Robinson Gary | Wynona, OK 74084 | Oil Operator | Oct 2023 |
| 1329 | Robinson Home Products, Inc. | Williamsville, NY 14221 | Gas Operator | Dec 2022 |
| 1330 | Robinson Oil & Gas, Inc. | Chico, TX 76431 | Oil & Gas Operator | Aug 2003 |
| 1331 | Robinson Oil Co. | Graham, TX 76450 | Oil & Gas Operator | Apr 2024 |
| 1332 | Robinson Oil Com | | Oil & Gas Operator | Feb 1995 |
| 1333 | Robinson Oil Company, LLC | Billings, MT 59103 | Gas Operator | Dec 2015 |
| 1334 | Robinson Oil Inc | Eunice, NM 88231 | Oil & Gas Operator | Jun 2015 |
| 1335 | Robinson Operating Company | Abilene, TX 79604 | Oil & Gas Operator | Aug 2012 |
| 1336 | Robinson Resource Dev. Co.Inc. | | Oil & Gas Operator | Oct 1982 |
| 1337 | Robinson Tracy D | Duncan, OK 73534-0442 | Oil Operator | Oct 2018 |
| 1338 | Robinson'S Oil Inc. | Alfred Station, NY 14803 | Oil & Gas Operator | Dec 2022 |
| 1339 | Robinson, Beryl A. | Peru, KS 67360 | Oil & Gas Operator | Mar 2012 |
| 1340 | Robinson, Irvin | Abilene, TX 79608 | Oil & Gas Operator | May 1999 |
| 1341 | Robison, L. E. Oil | Yates Center, KS 66783 | Oil Operator | Sep 2001 |
| 1342 | Robl-Six, Inc. | Ellinwood, KS 67526 | Oil Operator | Dec 2019 |
| 1343 | Roblyn Oil Inc | Allen, OK 74825-6933 | Oil & Gas Operator | Jan 2024 |
| 1344 | Roblyn Petroleum Corp. | | Oil & Gas Operator | May 1983 |
| 1345 | Robson & Shults Prod Corp | Mannford, OK 74044 | Oil & Gas Operator | Jun 1995 |
| 1346 | Robson Petroleum Company | Tulsa, OK 74104 | Oil & Gas Operator | Jan 1995 |
| 1347 | Robson Resources Inc | Tulsa, OK 74104 | Oil & Gas Operator | May 1998 |
| 1348 | Robuck Petroleum, LLC | Nacogdoches, TX 75965 | Oil & Gas Operator | Apr 2024 |
| 1349 | Roc Energy, Inc. | Midland, TX 79710 | Oil & Gas Operator | Feb 2013 |
| 1350 | Roc Operating, Inc. | Plano, TX 75093 | Oil & Gas Operator | Oct 2008 |
| 1351 | Roca Operating, Inc. | Midland, TX 79702 | Oil & Gas Operator | Apr 2024 |
| 1352 | Roca Production, Inc. | Fort Worth, TX 76107 | Oil & Gas Operator | Apr 2024 |
| 1353 | Roca Resource Company, Inc. | Midland, TX 79702 | Oil & Gas Operator | Mar 2008 |
| 1354 | Rocanville Corporation | Dallas, TX 75225 | Oil & Gas Operator | Dec 2016 |
| 1355 | Rocc Oil & Gas, L.P. | Houston, TX 77084 | Oil & Gas Operator | Apr 2024 |
| 1356 | Rocc Operating, LLC | Houston, TX 77084 | Oil & Gas Operator | Apr 2024 |
| 1357 | Roche, E. Michael | Elma, NY 14059 | Gas Operator | Dec 2022 |
| 1358 | Rochelle Oil & Gas | Gillette, WY 82717 | Oil & Gas Operator | Jan 2024 |
| 1359 | Rochez, Mary B. | East Amherst, NY 14051 | Gas Operator | Dec 2022 |
| 1360 | Rocinante | Houston, TX 77058 | Oil Operator | Apr 2024 |
| 1361 | Rock Bottom Oil LLC | | Oil Operator | Dec 2023 |
| 1362 | Rock Bottom Oil, GP, L.L.C. | Austin, TX 78747 | Oil & Gas Operator | Apr 2024 |
| 1363 | Rock Creek Crude, LLC | Morrill, KS 66515 | Oil Operator | Dec 2023 |
| 1364 | Rock Creek Energy Co | Ada, OK 74820-5725 | Oil Operator | Jul 2022 |
| 1365 | Rock Creek Energy, LLC | Fort Smith, AR 72901 | Gas Operator | Jan 2024 |
| 1366 | Rock Creek Oil Co. | Iowa Park, TX 76367 | Oil Operator | Mar 2008 |
| 1367 | Rock Creek Oil, Inc. | Dallas, TX 75225 | Oil & Gas Operator | Nov 2019 |
| 1368 | Rock Creek Resources LLC | Englewood, CO 80112 | Oil & Gas Operator | Dec 2021 |
| 1369 | Rock Energy Operating Company | | Oil & Gas Operator | Nov 2008 |
| 1370 | Rock Energy Resources, LLC | Dallas, TX 75251 | Oil Operator | Apr 2024 |
| 1371 | Rock Energy, Inc. | | Oil & Gas Operator | Sep 1992 |
| 1372 | Rock Fish Operating LLC | McKinney, TX 75070 | Oil & Gas Operator | Apr 2024 |
| 1373 | Rock Hill Operating | Burkburnett, TX 76354 | Oil & Gas Operator | Apr 2024 |
| 1374 | Rock Oil Company | Broken Arrow, OK 74014-6106 | Oil & Gas Operator | Dec 2023 |
| 1375 | Rock Oil Corporation | Lawrence, KS 66046 | Oil Operator | Oct 2004 |
| 1376 | Rock Oil, Inc. | | Oil Operator | Nov 1989 |
| 1377 | Rock Operating | Abilene, TX 79608 | Oil & Gas Operator | Apr 2024 |
| 1378 | Rock Petroleum, LLC | Fort Worth, TX 76102 | Oil & Gas Operator | Sep 2023 |
| 1379 | Rock Resources, Inc. | Corpus Chrsti, TX 78414 | Oil & Gas Operator | Apr 2024 |
| 1380 | Rock River Operating Inc | Laramie, WY 82070 | Oil & Gas Operator | Feb 2024 |
| 1381 | Rock Solid Operating, LLC | Southlake, TX 76092 | Oil Operator | Sep 2021 |
| 1382 | Rock Well Petroleum (U.S.), Inc. | Canada, 00100 | Oil & Gas Operator | Sep 2014 |
| 1383 | Rockbridge Oil & Gas | Houston, TX 77027 | Oil & Gas Operator | Mar 1990 |
| 1384 | Rockbridge Oil And Gas, Inc. | Houston, TX 77227 | Oil & Gas Operator | Nov 1997 |
| 1385 | Rockbridge Petroleum LLC | Houston, TX 77057 | Oil & Gas Operator | Dec 2009 |
| 1386 | Rockcliff Energy Operating LLC | Houston, TX 77002 | Oil & Gas Operator | Apr 2024 |
| 1387 | Rockcliff Operating La LLC | | Oil & Gas Operator | Jul 2022 |
| 1388 | Rockcliff Operating New Mexico LLC | Houston, TX 77002 | Oil & Gas Operator | Oct 2018 |
| 1389 | Rockdale Energy, LLC | Houston, TX 77024 | Oil & Gas Operator | Dec 2020 |
| 1390 | Rockdale Marcellus LLC | Canonsburg, PA 15317 | Gas Operator | Apr 2022 |
| 1391 | Rockdale Resources Corporation | Houston, TX 77024 | Oil Operator | Jul 2016 |
| 1392 | Rockefeller Hughes (USA) LLC | Houston, TX 77027 | Oil & Gas Operator | Jul 2015 |
| 1393 | Rocker A Operating Company | Post, TX 79356 | Oil & Gas Operator | Aug 2022 |
| 1394 | Rocker B Production, L.L.C. | Graham, TX 76450 | Gas Operator | Apr 2024 |
| 1395 | Rocket Energy Corp | Muskogee, OK 74402-1665 | Oil & Gas Operator | Dec 2003 |
| 1396 | Rocket Oil Company | Duncan, OK 73534 | Oil & Gas Operator | Apr 2015 |
| 1397 | Rocket Petroleum Company | | Oil & Gas Operator | Aug 2005 |
| 1398 | Rockford CBM LLC | Tulsa, OK 74103-4335 | Oil & Gas Operator | Jan 2013 |
| 1399 | Rockford Energy Partners II, LLC | Tulsa, OK 74103 | Oil & Gas Operator | Sep 2007 |
| 1400 | Rockford Energy Partners III,LLC | Tulsa, OK 74103 | Oil & Gas Operator | Sep 2012 |