| 5501 | Slone, VIctor R | | Oil Operator | Dec 2025 |
| 5502 | SLS Operating LLC | Seminole, OK 74868-5876 | Oil & Gas Operator | Dec 2025 |
| 5503 | SLT Dakota Operating, Inc. | Yukon, OK 73099 | Oil & Gas Operator | Mar 2026 |
| 5504 | SM Energy Company | Midland, TX 79707 | Oil & Gas Operator | Mar 2026 |
| 5505 | SM Oil & Gas Inc | Skiatook, OK 74070 | Oil & Gas Operator | Dec 2025 |
| 5506 | Smart Jr T J | Ryan, OK 73565 | Oil Operator | Sep 1994 |
| 5507 | Smart Service & Equipment LLC | Muskogee, OK 74401-5262 | Oil Operator | Aug 2013 |
| 5508 | Smiley Drilling Co | Oklahoma City, OK 73156-0773 | Oil & Gas Operator | Apr 1999 |
| 5509 | Smith & Smith Petroleum Corp | | Oil & Gas Operator | Sep 2025 |
| 5510 | Smith Al | Duncan, OK 73534-0037 | Oil Operator | Dec 1998 |
| 5511 | Smith Alfred Dba A-S Oil | Walters, OK 73572 | Oil Operator | Dec 2025 |
| 5512 | Smith Bart Oil & Gas Expl Inc | Council Hill, OK 74428-9603 | Oil & Gas Operator | Apr 2015 |
| 5513 | Smith Bob W | Ardmore, OK 73403-5214 | Oil & Gas Operator | Sep 2014 |
| 5514 | Smith Bradley D & Paul C | Pawhuska, OK 74056 | Oil Operator | Oct 2025 |
| 5515 | Smith Brothers Enterprises | Ardmore, OK 73402 | Oil Operator | Jul 1998 |
| 5516 | Smith C W & Associates Inc | Oklahoma City, OK 73178-0105 | Oil & Gas Operator | Aug 2013 |
| 5517 | Smith Cheryl A | Copan, OK 74022 | Oil Operator | Nov 2025 |
| 5518 | Smith Claude W | Henryetta, OK 74437-7553 | Oil Operator | May 2008 |
| 5519 | Smith Conley P Operating Co | Eglewood, CO 80112-3640 | Oil & Gas Operator | Jun 2000 |
| 5520 | Smith Connie M & Sheryle | Chelsea, OK 74016-1959 | Oil Operator | Feb 2017 |
| 5521 | Smith Doug | Tulsa, OK 74107 | Oil & Gas Operator | Feb 2016 |
| 5522 | Smith Edward F | Avant, OK 74001-0024 | Oil & Gas Operator | Nov 2014 |
| 5523 | Smith Energy Company LLC | Purcell, OK 73080-4772 | Oil & Gas Operator | May 2015 |
| 5524 | Smith Harmon K | Wewoka, OK 74884 | Oil & Gas Operator | Jan 2013 |
| 5525 | Smith J S Production | Seminole, OK 74868 | Oil & Gas Operator | Dec 2025 |
| 5526 | Smith Jack Boyd | Elkhart, IN 46515-1968 | Oil & Gas Operator | Oct 2011 |
| 5527 | Smith Joyce | Okmulgee, OK 74447-6074 | Oil Operator | Mar 2025 |
| 5528 | Smith Manus L MFG Inc | Oklahoma City, OK 73147 | Oil & Gas Operator | Nov 1998 |
| 5529 | Smith Max Dean | Wewoka, OK 74884 | Oil & Gas Operator | Oct 2025 |
| 5530 | Smith Mike D | Stillwater, OK 74074 | Oil & Gas Operator | Apr 2015 |
| 5531 | Smith Oil And Gas Co | Wichita Falls, TX 76310 | Oil Operator | Dec 2010 |
| 5532 | Smith Patrica\Judith Miller | Collinsville, OK 74021-6307 | Oil Operator | Jun 2010 |
| 5533 | Smith Petroleum Company | Spring, TX 77389 | Oil & Gas Operator | Mar 2026 |
| 5534 | Smith Petroleum LLC | Barnsdall, OK 74002-0134 | Oil Operator | Dec 2025 |
| 5535 | Smith Production Co. | Wichita Falls, TX 76308 | Oil & Gas Operator | Mar 2026 |
| 5536 | Smith Resources, L.L.C. | Marshall, TX 75671 | Oil & Gas Operator | Mar 2026 |
| 5537 | Smith Richard L | Catoosa, OK 74015 | Oil & Gas Operator | Dec 2019 |
| 5538 | Smith Shirley C | Claremore, OK 74017-0060 | Oil & Gas Operator | Mar 2015 |
| 5539 | Smith Terry | Wewoka, OK 74884 | Oil & Gas Operator | Mar 2015 |
| 5540 | Smith Vernon C | Tulsa, OK 74104 | Oil & Gas Operator | Sep 2025 |
| 5541 | Smith VIcki L Palmer | Lawton, OK 73505-1701 | Oil & Gas Operator | Dec 2014 |
| 5542 | Smith, W.T. | Panhandle, TX 79068 | Oil & Gas Operator | Nov 2005 |
| 5543 | Smith, William M | | Oil & Gas Operator | Oct 2025 |
| 5544 | Smith-Clement Exploration Inc | Edmond, OK 73013 | Oil Operator | Jul 1997 |
| 5545 | Smither Energy Co LLC | Broken Arrow, OK 74011-7615 | Oil & Gas Operator | Nov 2020 |
| 5546 | Smiths Investment Inc | Sperry, OK 74073-4198 | Oil Operator | Aug 2025 |
| 5547 | Smokey Trail LLC | Thornton, CO 80241 | Oil & Gas Operator | Jan 2026 |
| 5548 | Snake Creek Oil & Gas Inc | Okmulgee, OK 74447-2041 | Oil & Gas Operator | Dec 2025 |
| 5549 | SND Operating, L.L.C. | Kilgore, TX 75663 | Oil & Gas Operator | Mar 2026 |
| 5550 | Sneed Drilling Company | Cleveland, OK 74020 | Oil & Gas Operator | Dec 2025 |
| 5551 | Sneed William A Bill | Cleveland, OK 74020-1007 | Oil & Gas Operator | Dec 2025 |
| 5552 | Snelgrooes Oil Company Inc | Maysville, OK 73057-0631 | Oil & Gas Operator | Nov 2014 |
| 5553 | Snelgrooes Well Service Inc | Elmore City, OK 73433 | Oil & Gas Operator | May 2003 |
| 5554 | SNR Central Oklahoma Operating LLC | Oklahoma City, OK 73116-7906 | Oil Operator | Jan 2026 |
| 5555 | SNR Operating, LLC | Nichols Hill, OK 73116 | Oil & Gas Operator | Mar 2026 |
| 5556 | Snuffy'S Oilfield Service Inc | Hennessey, OK 73742-6511 | Oil & Gas Operator | Nov 2014 |
| 5557 | Snyder Oil Company | Fort Worth, TX 76102 | Oil & Gas Operator | Mar 2015 |
| 5558 | Snyder Oil Corporation | Houston, TX 77024 | Oil & Gas Operator | Mar 2008 |
| 5559 | Snyder Partners | Cody, WY 82414 | Oil & Gas Operator | Dec 2025 |
| 5560 | Sogc, Inc. | Salt Lake Cty, UT 84131 | Oil & Gas Operator | Jan 2026 |
| 5561 | Sonata Oil & Gas Corp Inc | Stratford, OK 74812 | Oil & Gas Operator | Apr 2014 |
| 5562 | Song Production Company | Lindsay, OK 73052-0369 | Oil & Gas Operator | Jun 2015 |
| 5563 | Sonny'S Tank Trucks Inc | Ratliff City, OK 73481 | Oil Operator | Nov 2025 |
| 5564 | Sooner Acquisition Corp | Wichita, KS 67206 | Oil & Gas Operator | Sep 1993 |
| 5565 | Sooner Crude Inc | Tulsa, OK 74136-9107 | Oil & Gas Operator | Sep 2008 |
| 5566 | Sooner Drilling Inc | Shawnee, OK 74802-0037 | Oil & Gas Operator | Jan 2005 |
| 5567 | Sooner Energy LLC | Norman, OK 73069 | Oil & Gas Operator | Sep 2005 |
| 5568 | Sooner Exploration & Development Co Inc | Enid, OK 73702-3525 | Oil & Gas Operator | Oct 2023 |
| 5569 | Sooner Oil & Gas LLC | Fairview, OK 73737-1806 | Oil & Gas Operator | Dec 2025 |
| 5570 | Sooner Oil & Gas Management Inc | Crescent, OK 73028 | Oil & Gas Operator | Jan 2026 |
| 5571 | Sooner Oilfield Services Inc | Piedmont, OK 73078-0810 | Oil & Gas Operator | May 2024 |
| 5572 | Sooner Pipe & Supply Corp | | Oil & Gas Operator | Nov 2004 |
| 5573 | Sooner Trend Exploration Inc | Kingfisher, OK 73750-4752 | Oil & Gas Operator | Dec 2015 |
| 5574 | Sopac Exploration Inc | Drumright, OK 74030 | Oil & Gas Operator | Jun 1993 |
| 5575 | Sorrels J R Dba Cheyenne Oil Properties | Ponca City, OK 74601 | Oil & Gas Operator | Jul 2022 |
| 5576 | South Burbank Petroleum Corporation | Midland, TX 79707-9027 | Oil Operator | Feb 2010 |
| 5577 | South Forty Inc (The) | Laverne, OK 73848 | Oil & Gas Operator | Mar 2015 |
| 5578 | South Ranch Corporation | Midland, TX 79707 | Oil Operator | Sep 2019 |
| 5579 | South Ranch Oil Company Inc | St. Louis, MO 63124 | Oil Operator | Sep 1996 |
| 5580 | South Sands Exploration LLC | Henryetta, OK 74437-4208 | Oil & Gas Operator | Dec 2025 |
| 5581 | Southbrook Energies Inc | Tulsa, OK 74153 | Oil Operator | Feb 2004 |
| 5582 | Southcreek Petroleum Co LLC | Blanchard, OK 73010-4911 | Oil & Gas Operator | Dec 2025 |
| 5583 | Southerland Jackie Dale Dba Skyden Oil | Duncan, OK 73533-5392 | Oil & Gas Operator | Dec 2025 |
| 5584 | Southerland Joe Don Dba Taylor Oil Co | Duncan, OK 73533 | Oil & Gas Operator | Dec 2025 |
| 5585 | Southerland Marquieta Dba Keta Oil Company | Loco, OK 73442 | Oil & Gas Operator | Dec 2025 |
| 5586 | Southern Int'L Inc | Oklahoma City, OK 73107 | Oil & Gas Operator | May 2007 |
| 5587 | Southern Management Inc | Camargo, OK 73835 | Oil Operator | Jun 1992 |
| 5588 | Southern Mineral Corporation | Houston, TX 77002 | Oil & Gas Operator | Oct 2001 |
| 5589 | Southern Oklahoma Production | Wilson, OK 73463-6537 | Oil & Gas Operator | Dec 2025 |
| 5590 | Southern Operating Corporation | Broken Arrow, OK 74014 | Oil & Gas Operator | May 2013 |
| 5591 | Southern Production Co Inc | Madill, OK 73446 | Oil & Gas Operator | Nov 2025 |
| 5592 | Southern Resources Inc | Oklahoma City, OK 73118-4821 | Oil & Gas Operator | Jan 2026 |
| 5593 | Southern Star Central Gas Pipeline Inc | Owensboro, KY 42301 | Oil & Gas Operator | Nov 2025 |
| 5594 | Southern Star Operating LLC | Provo, UT 84604-7714 | Oil & Gas Operator | Jun 2017 |
| 5595 | Southern Union Exploration Co. | Austin, TX 78701 | Oil & Gas Operator | Feb 2002 |
| 5596 | Southfourk Partners LLC | Blanchard, OK 73010-7209 | Oil Operator | Dec 2025 |
| 5597 | Southland Energy Corporation | Houston, TX 77060 | Oil & Gas Operator | Aug 2022 |
| 5598 | Southland Royalty Company | Houston, TX 77210 | Oil & Gas Operator | Sep 2011 |
| 5599 | Southport Exploration Inc | Tulsa, OK 74103-4015 | Oil & Gas Operator | Nov 1998 |
| 5600 | Southstar Energy Corporation | Ardmore, OK 73401 | Gas Operator | Aug 1990 |