| 24501 | Roberts Oil Corp. | | Oil & Gas Operator | Sep 1982 |
| 24502 | Roberts Resources, Inc. | Wichita, KS 67275 | Oil & Gas Operator | Feb 2026 |
| 24503 | Roberts Zetau J Fisk | Moore, OK 73160 | Oil & Gas Operator | Sep 1993 |
| 24504 | Roberts, Charles J. | Alden, NY 14004 | Gas Operator | Dec 2024 |
| 24505 | Roberts, Harry S &/Or McKinley Ray | Paintsville, KY 41240 | Oil & Gas Operator | Dec 2019 |
| 24506 | Roberts, Oliver M | | Oil & Gas Operator | Dec 2021 |
| 24507 | Roberts, Randy | Sedan, KS 67361 | Oil & Gas Operator | Feb 2026 |
| 24508 | Robertson Energy, LLC | | Oil & Gas Operator | Dec 2024 |
| 24509 | Robertson Jay Estate | Tulsa, OK 74127-3029 | Oil & Gas Operator | Jul 2013 |
| 24510 | Robertson Johnie J | Okmulgee, OK 74447-8765 | Oil & Gas Operator | Feb 2026 |
| 24511 | Robertson Resources, Inc. | Horseshoe Bay, TX 78657 | Oil & Gas Operator | Jun 2026 |
| 24512 | Robertson, French M. Oil Co. | Abilene, TX 79608 | Oil & Gas Operator | Mar 1995 |
| 24513 | Robertson, Gene Oil Co. | Burkburnett, TX 76354 | Oil & Gas Operator | Jul 1998 |
| 24514 | Robertson, Richard | Tulsa, OK 74127 | Gas Operator | Feb 2026 |
| 24515 | Robertson, T. L. Operating Co. | Cross Plains, TX 76443 | Oil & Gas Operator | May 2004 |
| 24516 | Robertson-Bryce Management, LLC | Tyler, TX 75701 | Oil & Gas Operator | Jun 2026 |
| 24517 | Robie A. Bridges III | | Oil Operator | Aug 1993 |
| 24518 | Robin Of Perryton Corporation | Perryton, TX 79070 | Oil & Gas Operator | Jun 2026 |
| 24519 | Robin Of Perryton, Inc. | Perryton, TX 79070 | Oil & Gas Operator | Dec 1995 |
| 24520 | Robin, Jack, Co. | Corpus Christ, TX 78410 | Oil & Gas Operator | Dec 2017 |
| 24521 | Robinett Resources Inc. | Longview, TX 75601 | Oil & Gas Operator | Dec 1999 |
| 24522 | Robinette Oil Company LLC | Chanute, KS 66720 | Oil Operator | Sep 2025 |
| 24523 | Robinowitz Oil C | | Oil Operator | Dec 1996 |
| 24524 | Robinowitz Oil Company | Tulsa, OK 74136-1429 | Oil & Gas Operator | Feb 2023 |
| 24525 | Robinowitz Oil Company, A General Partnership | Tulsa, OK 74136 | Oil & Gas Operator | Feb 2023 |
| 24526 | Robinson Brothers Drilling Co | | Oil & Gas Operator | Jul 2002 |
| 24527 | Robinson Drilling Of Texas | Big Spring, TX 79721 | Oil & Gas Operator | Oct 1996 |
| 24528 | Robinson Energy & Exploration, Inc. | Wichita, KS 67202 | Oil & Gas Operator | Aug 2008 |
| 24529 | Robinson Engineering & Oil Company, Inc | Evansville, IN 47716 | Oil & Gas Operator | Dec 2024 |
| 24530 | Robinson Oil & Gas, Inc. | Chico, TX 76431 | Oil & Gas Operator | Aug 2003 |
| 24531 | Robinson Oil Co. | Graham, TX 76450 | Oil & Gas Operator | Jun 2026 |
| 24532 | Robinson Oil Com | | Oil & Gas Operator | Feb 1995 |
| 24533 | Robinson Oil Company, LLC | Billings, MT 59103 | Gas Operator | Dec 2015 |
| 24534 | Robinson Oil Inc | Eunice, NM 88231 | Oil & Gas Operator | Jun 2015 |
| 24535 | Robinson Operating Company | Abilene, TX 79604 | Oil & Gas Operator | Aug 2012 |
| 24536 | Robinson Resource Dev. Co.Inc. | | Oil & Gas Operator | Oct 1982 |
| 24537 | Robinson Tracy D | Duncan, OK 73534 | Oil Operator | Oct 2018 |
| 24538 | Robinson, Beryl A. | Peru, KS 67360 | Oil & Gas Operator | Mar 2012 |
| 24539 | Robinson, Gary D | | Oil Operator | Jan 2026 |
| 24540 | Robinson, Irvin | Abilene, TX 79608 | Oil & Gas Operator | May 1999 |
| 24541 | Robison, L. E. Oil | Yates Center, KS 66783 | Oil Operator | Sep 2001 |
| 24542 | Robl-Six, Inc. | Ellinwood, KS 67526 | Oil Operator | Dec 2019 |
| 24543 | Roblyn Oil Inc | Allen, OK 74825-6933 | Oil & Gas Operator | Dec 2025 |
| 24544 | Roblyn Petroleum Corp. | | Oil & Gas Operator | May 1983 |
| 24545 | Robson & Shults Prod Corp | Mannford, OK 74044 | Oil & Gas Operator | Jun 1995 |
| 24546 | Robson Petroleum Company | Tulsa, OK 74104 | Oil & Gas Operator | Jan 1995 |
| 24547 | Robson Resources Inc | Tulsa, OK 74104 | Oil & Gas Operator | May 1998 |
| 24548 | Robuck Petroleum, LLC | Nacogdoches, TX 75965 | Oil & Gas Operator | Jun 2026 |
| 24549 | Roc Energy, Inc. | Midland, TX 79710 | Oil & Gas Operator | Feb 2013 |
| 24550 | Roc Operating, Inc. | Plano, TX 75093 | Oil & Gas Operator | Oct 2008 |
| 24551 | Roca Operating, Inc. | Midland, TX 79702 | Oil & Gas Operator | Jun 2026 |
| 24552 | Roca Production, Inc. | Fort Worth, TX 76107 | Oil & Gas Operator | Jun 2026 |
| 24553 | Roca Resource Company, Inc. | Midland, TX 79702 | Oil & Gas Operator | Mar 2008 |
| 24554 | Rocanville Corporation | Dallas, TX 75225 | Oil & Gas Operator | Dec 2016 |
| 24555 | Rocc Oil & Gas, L.P. | Houston, TX 77084 | Oil & Gas Operator | Apr 2024 |
| 24556 | Rocc Operating, LLC | Houston, TX 77084 | Oil & Gas Operator | Jun 2026 |
| 24557 | Roche, E. Michael | Elma, NY 14059 | Gas Operator | Dec 2024 |
| 24558 | Rochelle Oil & Gas | Gillette, WY 82717 | Oil & Gas Operator | Mar 2024 |
| 24559 | Rochez, Mary B. | East Amherst, NY 14051 | Gas Operator | Dec 2024 |
| 24560 | Rocinante | Houston, TX 77058 | Oil Operator | Jun 2026 |
| 24561 | Rock Bottom Oil LLC | | Oil Operator | Dec 2025 |
| 24562 | Rock Bottom Oil, GP, L.L.C. | Nacogdoches, TX 75963 | Oil & Gas Operator | Jun 2026 |
| 24563 | Rock Creek Crude, LLC | Morrill, KS 66515 | Oil Operator | Jan 2026 |
| 24564 | Rock Creek Energy Co | Ada, OK 74820-5725 | Oil Operator | Jul 2022 |
| 24565 | Rock Creek Oil Co. | Iowa Park, TX 76367 | Oil Operator | Mar 2008 |
| 24566 | Rock Creek Oil, Inc. | Dallas, TX 75225 | Oil & Gas Operator | Nov 2019 |
| 24567 | Rock Creek Resources LLC | Englewood, CO 80112 | Oil & Gas Operator | Dec 2021 |
| 24568 | Rock Energy Operating Company | | Oil & Gas Operator | Nov 2008 |
| 24569 | Rock Energy, Inc. | | Oil & Gas Operator | Sep 1992 |
| 24570 | Rock Fish Operating LLC | McKinney, TX 75070 | Oil & Gas Operator | Jun 2026 |
| 24571 | Rock Hill Operating | Burkburnett, TX 76354 | Oil & Gas Operator | Jun 2026 |
| 24572 | Rock Oil Company | Broken Arrow, OK 74014-6106 | Oil & Gas Operator | Mar 2026 |
| 24573 | Rock Oil Corporation | Lawrence, KS 66046 | Oil Operator | Oct 2004 |
| 24574 | Rock Oil Resources LLC | Titusville, PA 16354 | Oil Operator | Dec 2025 |
| 24575 | Rock Oil, Inc. | | Oil Operator | Nov 1989 |
| 24576 | Rock Operating | Abilene, TX 79608 | Oil & Gas Operator | Jun 2026 |
| 24577 | Rock Petroleum, LLC | Fort Worth, TX 76102 | Oil & Gas Operator | Jul 2025 |
| 24578 | Rock Resources, Inc. | Corpus Chrsti, TX 78414 | Oil & Gas Operator | Jun 2026 |
| 24579 | Rock River Operating Inc | Laramie, WY 82070 | Oil & Gas Operator | Apr 2026 |
| 24580 | Rock Solid Operating, LLC | Southlake, TX 76092 | Oil Operator | Sep 2021 |
| 24581 | Rock Well Petroleum (U.S.), Inc. | Canada, 00100 | Oil & Gas Operator | Sep 2014 |
| 24582 | Rockbridge Oil & Gas | Houston, TX 77027 | Oil & Gas Operator | Mar 1990 |
| 24583 | Rockbridge Oil And Gas, Inc. | Houston, TX 77227 | Oil & Gas Operator | Nov 1997 |
| 24584 | Rockcliff Energy Operating III LLC | Houston, TX 77002 | Oil & Gas Operator | Jun 2026 |
| 24585 | Rockcliff Energy Operating LLC | Houston, TX 77002 | Oil & Gas Operator | Jun 2026 |
| 24586 | Rockcliff Operating La LLC | | Oil & Gas Operator | Jul 2022 |
| 24587 | Rockcliff Operating New Mexico LLC | Houston, TX 77002 | Oil & Gas Operator | Oct 2018 |
| 24588 | Rockdale Energy, LLC | Houston, TX 77024 | Oil & Gas Operator | Dec 2020 |
| 24589 | Rockdale Marcellus LLC | Canonsburg, PA 15317 | Gas Operator | Apr 2022 |
| 24590 | Rockdale Resources Corporation | Houston, TX 77024 | Oil Operator | Jul 2016 |
| 24591 | Rockefeller Hughes (USA) LLC | Houston, TX 77027 | Oil & Gas Operator | Jul 2015 |
| 24592 | Rocker A Operating Company | Post, TX 79356 | Oil & Gas Operator | Aug 2022 |
| 24593 | Rocker B Production, L.L.C. | Graham, TX 76450 | Gas Operator | Aug 2025 |
| 24594 | Rocket Energy Corporation | Muskogee, OK 74402-1665 | Oil & Gas Operator | Dec 2003 |
| 24595 | Rocket Oil Company | Duncan, OK 73534 | Oil & Gas Operator | Apr 2015 |
| 24596 | Rockford CBM LLC | Tulsa, OK 74103-4335 | Oil & Gas Operator | Jan 2013 |
| 24597 | Rockford Energy Partners II, LLC | Tulsa, OK 74103 | Oil & Gas Operator | Sep 2007 |
| 24598 | Rockford Energy Partners III,LLC | Tulsa, OK 74103 | Oil & Gas Operator | Sep 2012 |
| 24599 | Rockford Panhandle, LLC | Tulsa, OK 74105 | Oil & Gas Operator | Sep 2008 |
| 24600 | Rockhound Petroleum, LLC | St. John, KS 67576 | Oil & Gas Operator | Feb 2026 |