| 25401 | Romaxsco Exploration Co., Inc. | | Oil & Gas Operator | Aug 1993 |
| 25402 | Romco | Muenster, TX 76252 | Oil & Gas Operator | Mar 2015 |
| 25403 | Rome Oil, LLC | Lakewood, CO 80232 | Oil Operator | Dec 2024 |
| 25404 | Romine Oil & Gas LTD | Shawnee, OK 74802-3425 | Oil & Gas Operator | Jan 2013 |
| 25405 | Romine Oil & Gas, LLC | Midland, TX 79710 | Oil & Gas Operator | May 2025 |
| 25406 | Romines & Warner | Pampa, TX 79065 | Oil & Gas Operator | Jan 2002 |
| 25407 | Romines Operating Group | Pampa, TX 79066 | Oil & Gas Operator | Nov 2022 |
| 25408 | Rominger, R.L. | Wichita Falls, TX 76307 | Oil & Gas Operator | Jan 2015 |
| 25409 | Romo Corp | Farmington, NM 87499 | Gas Operator | Dec 1993 |
| 25410 | Roms Co., Inc. | | Oil Operator | Jun 1983 |
| 25411 | Ron & Dan'S Oil LTD | Barnsdall, OK 74002-0628 | Oil & Gas Operator | May 2011 |
| 25412 | Ron Brooks Corp | | Oil Operator | Sep 1995 |
| 25413 | Ron Knott & Associates,Inc. | | Oil & Gas Operator | Aug 1989 |
| 25414 | Ron'S Oil Oper I | | Oil Operator | Nov 1994 |
| 25415 | Ron'S Oil Operations Inc | Penokee, KS 67659 | Oil Operator | Dec 2018 |
| 25416 | Ron-Bob Oil LLC | Neosho Falls, KS 66758 | Oil Operator | Jan 2025 |
| 25417 | Ronadero Company Inc | Roswell, NM BAD ADDR | Oil & Gas Operator | Dec 1996 |
| 25418 | Ronald A Gibson & Assoc Inc | Avon Lake, OH 44012 | Oil & Gas Operator | Dec 2024 |
| 25419 | Ronald E. Hall | | Oil Operator | Nov 1991 |
| 25420 | Ronald J Nelson | Hobbs, NM 88240 | Oil & Gas Operator | Feb 2006 |
| 25421 | Ronald L Hicks | Aztec, NM 87410 | Oil Operator | Sep 2009 |
| 25422 | Ronald L Nick | Lucinda, PA 16235-3006 | Gas Operator | Dec 2023 |
| 25423 | Ronald M. Sannes | | Oil & Gas Operator | Oct 2016 |
| 25424 | Ronald Russ Prater, Inc. | Eastborough, KS 67207 | Gas Operator | Nov 2024 |
| 25425 | Ronan Company | Springfield, MO 65704 | Oil & Gas Operator | Aug 2013 |
| 25426 | Ronco Energy Resources Inc | Norman, OK 73072 | Oil & Gas Operator | Apr 2015 |
| 25427 | Ronco Incorporat | | Oil Operator | Sep 1988 |
| 25428 | Ronde Operating, LLC | Houston, TX 77006 | Oil & Gas Operator | Mar 2021 |
| 25429 | Rongey Ira E | Sapulpa, OK 74066-9317 | Oil & Gas Operator | May 2013 |
| 25430 | Rongey Oil | Jenks, OK 74037-3621 | Oil & Gas Operator | Jan 2013 |
| 25431 | Ronmar Engineering & Expl Inc | Ada, OK 74820-1402 | Oil Operator | Aug 2013 |
| 25432 | Ronning Gas And Oil LLC | Mesa, AZ 85203 | Oil & Gas Operator | May 2025 |
| 25433 | Ronny N. Davis | | Oil Operator | Jan 2025 |
| 25434 | Roof Carl | Indiana, PA 15701 | Gas Operator | Dec 2024 |
| 25435 | Rookstool, William A. | Edmond, OK 73034 | Gas Operator | Jan 1999 |
| 25436 | Roome Exploration Company | Bartlett, TX 76511 | Oil & Gas Operator | Mar 2008 |
| 25437 | Roome Oil Co. | Bartlett, TX 76511 | Oil & Gas Operator | May 2025 |
| 25438 | Roon Energy, Inc. | Dickinson, TX 77539 | Oil Operator | May 2025 |
| 25439 | Roosevelt Operating Co. | | Oil Operator | Sep 2023 |
| 25440 | Roosevelt Resources LP | Dallas, TX 75225 | Oil & Gas Operator | May 2025 |
| 25441 | Rooster Petroleum, LLC | | Oil & Gas Operator | Feb 2011 |
| 25442 | Rooster Production, LLC | Oil City, LA 71061 | Oil Operator | Jan 2025 |
| 25443 | Roosth & Genecov Production Co. | Tyler, TX 75710 | Oil & Gas Operator | Aug 2003 |
| 25444 | Roosth Production Co. | Tyler, TX 75711 | Oil & Gas Operator | May 2025 |
| 25445 | Ropa Exploration Corp. | Fort Worth, TX 76102 | Oil & Gas Operator | Apr 2011 |
| 25446 | Ropar Operating Co. | Wichita Falls, TX 76301 | Oil & Gas Operator | May 2025 |
| 25447 | Roppolo Petro/Sun Explor& Prod | | Oil & Gas Operator | Sep 1988 |
| 25448 | Roppolo Petroleum Co. | | Oil & Gas Operator | Jan 2000 |
| 25449 | Rorico Oil Company | Argyle, TX 76226 | Oil & Gas Operator | May 2025 |
| 25450 | Roring Jr Roy W | Duncan, OK 73533-3048 | Oil & Gas Operator | Aug 2022 |
| 25451 | Roring Roy W | Ardmore, OK 73401 | Oil & Gas Operator | Dec 1998 |
| 25452 | Roring Steven A | Ratliff City, OK 73481-0206 | Oil Operator | Feb 2018 |
| 25453 | Rosa Petroleum | Evansville, WY 82636 | Oil Operator | Dec 1995 |
| 25454 | Rosamond Drilling Co., Inc. | | Gas Operator | Nov 1984 |
| 25455 | Rosbottom Petroleum | | Oil & Gas Operator | Aug 1988 |
| 25456 | Rosbottom Production Corp | Shreveport, LA 71134 | Oil & Gas Operator | Dec 2017 |
| 25457 | Roscoe Gas & Oil Co | Dover, OH 44622 | Oil & Gas Operator | Dec 1991 |
| 25458 | Rose City Resources, LLC | Tyler, TX 75703 | Oil & Gas Operator | May 2025 |
| 25459 | Rose Dan And Bill | Henryetta, OK 74437-1450 | Oil & Gas Operator | Feb 2025 |
| 25460 | Rose Exploration, Inc. | Dallas, TX 75231 | Oil & Gas Operator | Feb 2002 |
| 25461 | Rose Katherine Stone | | Oil & Gas Operator | Dec 2025 |
| 25462 | Rose Operating Company | Tulsa, OK 74101-2391 | Oil & Gas Operator | Dec 2014 |
| 25463 | Rose Pass Mines, Inc. | | Oil Operator | Oct 1982 |
| 25464 | Rose Petroleum (Us), LLC | Parker, CO 80134 | Oil & Gas Operator | Jul 2016 |
| 25465 | Rose Petroleum (Utah) LLC | Annapolis, MD 21401 | Oil & Gas Operator | Mar 2025 |
| 25466 | Rose Petroleum Corp | Oklahoma City, OK 73146 | Oil & Gas Operator | Feb 2015 |
| 25467 | Rose Rock Resources Inc | Wagoner, OK 74467-8362 | Oil & Gas Operator | Feb 2025 |
| 25468 | Rose, Lonnie | Troy, WV 26443 | Gas Operator | Dec 2021 |
| 25469 | Rose, Verl | Spring Creek, NV 89815 | Oil & Gas Operator | Feb 2011 |
| 25470 | Roseclare Oil Co | | Oil Operator | Dec 2016 |
| 25471 | Rosehill Operating Company, LLC | Houston, TX 77084 | Oil & Gas Operator | Sep 2021 |
| 25472 | Rosekrans Janet A Dba J Oil Co | | Oil & Gas Operator | Jan 2003 |
| 25473 | Rosel Energy, Inc. | Liberal, KS 67901 | Oil & Gas Operator | Jul 2004 |
| 25474 | Roseland Oil & Gas Inc | Rockwall, TX 75087 | Oil & Gas Operator | Feb 2003 |
| 25475 | Rosemain 031 LLC | | Oil & Gas Operator | Feb 2025 |
| 25476 | Rosenthal Henry & Co | | Oil Operator | Feb 1994 |
| 25477 | Rosenthal, Stanley H. | Bay City, TX 77404 | Oil & Gas Operator | Dec 2020 |
| 25478 | Rosestone Operating Company, LLC | | Oil & Gas Operator | Dec 2024 |
| 25479 | Rosetta Energy Partners, L P | Dallas, TX 75219 | Oil & Gas Operator | Jul 2009 |
| 25480 | Rosetta Resources Operating LP | San Antonio, TX 78216 | Oil & Gas Operator | May 2025 |
| 25481 | Rosewood Resources (HPC), Inc. | | Gas Operator | Dec 1984 |
| 25482 | Rosewood Resources (Poc), Inc. | | Oil & Gas Operator | Dec 1984 |
| 25483 | Rosewood Resources, Inc. | Dallas, TX 75201 | Oil & Gas Operator | May 2025 |
| 25484 | Roskydal, Laverne | La Vernia, TX 78121 | Oil Operator | May 2025 |
| 25485 | Rosner, S. | San Antonio, TX 78216 | Oil & Gas Operator | Aug 1996 |
| 25486 | Ross & Glenn Petroleum Inc. | | Oil & Gas Operator | Aug 1984 |
| 25487 | Ross & Wharton Gas Co Inc | Buckhannon, WV 26201 | Oil & Gas Operator | Dec 2021 |
| 25488 | Ross Bobby L | Okmulgee, OK 74447-8802 | Oil & Gas Operator | Apr 2020 |
| 25489 | Ross Curtis | Ada, OK 74820-1354 | Oil & Gas Operator | Feb 2012 |
| 25490 | Ross Engineering, Inc. | Abilene, TX 79601 | Oil & Gas Operator | May 2025 |
| 25491 | Ross Exploration,Inc. | Fort Worth, TX 76102 | Oil & Gas Operator | Jul 2013 |
| 25492 | Ross Explorations, Inc | Fort Smith, AR 72903 | Gas Operator | Jan 2025 |
| 25493 | Ross Gas And Oil, LTD. Co. | Dripping SPGS, TX 78620 | Oil & Gas Operator | May 2025 |
| 25494 | Ross Operating Company | Shreveport, LA 71163 | Oil & Gas Operator | May 1996 |
| 25495 | Ross Prod. - Zwahlen & Raish | | Oil & Gas Operator | Sep 1998 |
| 25496 | Ross Production Co. | Shreveport, LA 71101 | Oil & Gas Operator | Mar 2000 |
| 25497 | Ross, Dwight M. DRLG. Co., Inc. | Wichita Falls, TX 76301 | Oil & Gas Operator | May 2025 |
| 25498 | Ross, Mike Inc. | Coalton, WV 26257 | Oil & Gas Operator | Dec 2021 |
| 25499 | Ross-A. J. Hodges Ind. | | Oil & Gas Operator | Dec 1980 |
| 25500 | Ross-Rippy | Tyler, TX 75702 | Oil & Gas Operator | Oct 2002 |