| 5401 | Smith Petroleum LLC | Barnsdall, OK 74002-0134 | Oil Operator | Feb 2026 |
| 5402 | Smith Production Co. | Wichita Falls, TX 76308 | Oil & Gas Operator | May 2026 |
| 5403 | Smith Resources, L.L.C. | Marshall, TX 75671 | Oil & Gas Operator | May 2026 |
| 5404 | Smith Richard L | Catoosa, OK 74015 | Oil & Gas Operator | Dec 2019 |
| 5405 | Smith Shirley C | Claremore, OK 74017-0060 | Oil & Gas Operator | Mar 2015 |
| 5406 | Smith Terry | Wewoka, OK 74884 | Oil & Gas Operator | Mar 2015 |
| 5407 | Smith Vernon C | Tulsa, OK 74104 | Oil & Gas Operator | Sep 2025 |
| 5408 | Smith VIcki L Palmer | Lawton, OK 73505-1701 | Oil & Gas Operator | Dec 2014 |
| 5409 | Smith, W.T. | Panhandle, TX 79068 | Oil & Gas Operator | Nov 2005 |
| 5410 | Smith, William M | | Oil & Gas Operator | Oct 2025 |
| 5411 | Smith-Clement Exploration Inc | Edmond, OK 73013 | Oil Operator | Jul 1997 |
| 5412 | Smither Energy Co LLC | Broken Arrow, OK 74011-7615 | Oil & Gas Operator | Nov 2020 |
| 5413 | Smiths Investment Inc | Sperry, OK 74073-4198 | Oil Operator | Aug 2025 |
| 5414 | Smokey Trail LLC | Thornton, CO 80241 | Oil & Gas Operator | Feb 2026 |
| 5415 | Snake Creek Oil & Gas Inc | Okmulgee, OK 74447-2041 | Oil & Gas Operator | Dec 2025 |
| 5416 | SND Operating, L.L.C. | Kilgore, TX 75663 | Oil & Gas Operator | May 2026 |
| 5417 | Sneed Drilling Company | Cleveland, OK 74020 | Oil & Gas Operator | Dec 2025 |
| 5418 | Sneed William A Bill | Cleveland, OK 74020-1007 | Oil & Gas Operator | Feb 2026 |
| 5419 | Snelgrooes Oil Company Inc | Maysville, OK 73057-0631 | Oil & Gas Operator | Nov 2014 |
| 5420 | Snelgrooes Well Service Inc | Elmore City, OK 73433 | Oil & Gas Operator | May 2003 |
| 5421 | SNR Central Oklahoma Operating LLC | Oklahoma City, OK 73116-7906 | Oil Operator | Feb 2026 |
| 5422 | SNR Operating, LLC | Nichols Hill, OK 73116 | Oil & Gas Operator | May 2026 |
| 5423 | Snuffy'S Oilfield Service Inc | Hennessey, OK 73742-6511 | Oil & Gas Operator | Nov 2014 |
| 5424 | Snyder Oil Company | Fort Worth, TX 76102 | Oil & Gas Operator | Mar 2015 |
| 5425 | Snyder Oil Corporation | Houston, TX 77024 | Oil & Gas Operator | Mar 2008 |
| 5426 | Snyder Partners | Cody, WY 82414 | Oil & Gas Operator | Jan 2026 |
| 5427 | Sogc, Inc. | Salt Lake Cty, UT 84131 | Oil & Gas Operator | Mar 2026 |
| 5428 | Sonata Oil & Gas Corp Inc | Stratford, OK 74812 | Oil & Gas Operator | Apr 2014 |
| 5429 | Song Production Company | Lindsay, OK 73052-0369 | Oil & Gas Operator | Jun 2015 |
| 5430 | Sonny'S Tank Trucks Inc | Ratliff City, OK 73481 | Oil Operator | Nov 2025 |
| 5431 | Sooner Acquisition Corp | Wichita, KS 67206 | Oil & Gas Operator | Sep 1993 |
| 5432 | Sooner Crude Inc | Tulsa, OK 74136-9107 | Oil & Gas Operator | Sep 2008 |
| 5433 | Sooner Drilling Inc | Shawnee, OK 74802-0037 | Oil & Gas Operator | Jan 2005 |
| 5434 | Sooner Energy LLC | Norman, OK 73069 | Oil & Gas Operator | Sep 2005 |
| 5435 | Sooner Exploration & Development Co Inc | Enid, OK 73702-3525 | Oil & Gas Operator | Oct 2023 |
| 5436 | Sooner Oil & Gas LLC | Fairview, OK 73737-1806 | Oil & Gas Operator | Feb 2026 |
| 5437 | Sooner Oil & Gas Management Inc | Crescent, OK 73028 | Oil & Gas Operator | Feb 2026 |
| 5438 | Sooner Oilfield Services Inc | Piedmont, OK 73078-0810 | Oil & Gas Operator | May 2024 |
| 5439 | Sooner Pipe & Supply Corp | | Oil & Gas Operator | Nov 2004 |
| 5440 | Sooner Trend Exploration Inc | Kingfisher, OK 73750-4752 | Oil & Gas Operator | Dec 2015 |
| 5441 | Sopac Exploration Inc | Drumright, OK 74030 | Oil & Gas Operator | Jun 1993 |
| 5442 | Sorrels J R Dba Cheyenne Oil Properties | Ponca City, OK 74601 | Oil & Gas Operator | Jul 2022 |
| 5443 | South Burbank Petroleum Corporation | Midland, TX 79707-9027 | Oil Operator | Feb 2010 |
| 5444 | South Forty Inc (The) | Laverne, OK 73848 | Oil & Gas Operator | Mar 2015 |
| 5445 | South Ranch Corporation | Midland, TX 79707 | Oil Operator | Sep 2019 |
| 5446 | South Ranch Oil Company Inc | St. Louis, MO 63124 | Oil Operator | Sep 1996 |
| 5447 | South Sands Exploration LLC | Henryetta, OK 74437-4208 | Oil & Gas Operator | Jan 2026 |
| 5448 | Southbrook Energies Inc | Tulsa, OK 74153 | Oil Operator | Feb 2004 |
| 5449 | Southcreek Petroleum Co LLC | Blanchard, OK 73010-4911 | Oil & Gas Operator | Feb 2026 |
| 5450 | Southerland Jackie Dale Dba Skyden Oil | Duncan, OK 73533-5392 | Oil & Gas Operator | Jan 2026 |
| 5451 | Southerland Joe Don Dba Taylor Oil Co | Duncan, OK 73533 | Oil & Gas Operator | Jan 2026 |
| 5452 | Southerland Marquieta Dba Keta Oil Company | Loco, OK 73442 | Oil & Gas Operator | Jan 2026 |
| 5453 | Southern Int'L Inc | Oklahoma City, OK 73107 | Oil & Gas Operator | May 2007 |
| 5454 | Southern Management Inc | Camargo, OK 73835 | Oil Operator | Jun 1992 |
| 5455 | Southern Mineral Corporation | Houston, TX 77002 | Oil & Gas Operator | Oct 2001 |
| 5456 | Southern Oklahoma Production | Wilson, OK 73463-6537 | Oil & Gas Operator | Jan 2026 |
| 5457 | Southern Operating Corporation | Broken Arrow, OK 74014 | Oil & Gas Operator | May 2013 |
| 5458 | Southern Production Co Inc | Madill, OK 73446 | Oil & Gas Operator | Jan 2026 |
| 5459 | Southern Resources Inc | Oklahoma City, OK 73120 | Oil & Gas Operator | Jan 2026 |
| 5460 | Southern Star Central Gas Pipeline Inc | Owensboro, KY 42301 | Oil & Gas Operator | Jan 2026 |
| 5461 | Southern Star Operating LLC | Provo, UT 84604-7714 | Oil & Gas Operator | Jun 2017 |
| 5462 | Southern Union Exploration Co. | Austin, TX 78701 | Oil & Gas Operator | Feb 2002 |
| 5463 | Southfourk Partners LLC | Blanchard, OK 73010-7209 | Oil Operator | Jan 2026 |
| 5464 | Southland Energy Corporation | Houston, TX 77060 | Oil & Gas Operator | Aug 2022 |
| 5465 | Southland Royalty Company | Houston, TX 77210 | Oil & Gas Operator | Sep 2011 |
| 5466 | Southport Exploration Inc | Tulsa, OK 74103-4015 | Oil & Gas Operator | Nov 1998 |
| 5467 | Southstar Energy Corporation | Ardmore, OK 73401 | Gas Operator | Aug 1990 |
| 5468 | Southstar Oil And Gas Inc | Andover, KS 67002-0123 | Oil & Gas Operator | Jul 2020 |
| 5469 | Southwest Energy Development Inc | Bison, OK 73720 | Oil & Gas Operator | Feb 2026 |
| 5470 | Southwest Energy LP | Tulsa, OK 74136 | Oil & Gas Operator | Dec 2025 |
| 5471 | Southwest Exploration Company | Oklahoma City, OK 73132-2230 | Oil & Gas Operator | Jun 2017 |
| 5472 | Southwest Petroleum Corp | Drumright, OK 74030 | Oil & Gas Operator | Mar 2018 |
| 5473 | Southwest Petroleum Oil & Gas Explor LLC | San Bernardino, CA 92404-1010 | Oil & Gas Operator | Jun 2022 |
| 5474 | Southwest Royalties, Inc. | Midland, TX 79710 | Oil & Gas Operator | May 2026 |
| 5475 | Southwestern Exploration Consultants Inc | Oklahoma City, OK 73118-1116 | Oil & Gas Operator | Feb 2026 |
| 5476 | Southwestern Oil Corporation | Oklahoma City, OK 73106 | Oil & Gas Operator | Jan 2026 |
| 5477 | SP Energy Development Company | Seattle, WA 98101-3277 | Oil & Gas Operator | Mar 2015 |
| 5478 | Spark'S Energy Inc | Perry, OK 73077 | Oil & Gas Operator | Nov 2014 |
| 5479 | Sparkman Rodger E | Jenks, OK 74037-0267 | Oil Operator | Sep 2018 |
| 5480 | Sparks Daniel M | Chickasha, OK 73023-1435 | Oil & Gas Operator | Apr 2014 |
| 5481 | Sparks Greg | Afton, OK 74331 | Oil & Gas Operator | Jan 2026 |
| 5482 | Sparks Mick Oil Company Inc | Jennings, OK 74038-0250 | Oil & Gas Operator | Jan 2026 |
| 5483 | Sparks Petroleum Company | Oklahoma City, OK 73128 | Oil & Gas Operator | Mar 1998 |
| 5484 | Sparks Resources Inc | Bristow, OK 74010 | Oil & Gas Operator | Feb 2026 |
| 5485 | Sparlin J L | Oklahoma City, OK 73156-1446 | Oil Operator | Feb 2026 |
| 5486 | Sparrow Operating LLC | Comanche, OK 73529-9747 | Oil Operator | Jan 2026 |
| 5487 | Spartan Resources LLC | Oklahoma City, OK 73116 | Oil & Gas Operator | Feb 2026 |
| 5488 | Spearpoint Energy LLC | Seminole, OK 74818-1247 | Oil Operator | Jun 2015 |
| 5489 | Spears Terry | Osage, OK 74054 | Oil Operator | Dec 2025 |
| 5490 | Special Energy Corp. | Stillwater, OK 74076 | Oil & Gas Operator | May 2026 |
| 5491 | Spectrum Energy Inc | Scottsdale, AZ 85257 | Oil & Gas Operator | Oct 2003 |
| 5492 | Spectrum Field Services Inc | Tulsa, OK 74136-3400 | Oil & Gas Operator | Jan 2004 |
| 5493 | Spectrum Oil Company | Irving, TX 75063 | Oil & Gas Operator | May 2013 |
| 5494 | Speed James F | Ada, OK 74821-1221 | Oil & Gas Operator | Nov 2009 |
| 5495 | Speer Kenneth G | Seminole, OK 74818-1202 | Oil & Gas Operator | Dec 2001 |
| 5496 | Speir R M Operating Company | Walters, OK 73572-3933 | Oil Operator | Jan 2026 |
| 5497 | Speller Oil Corporation | Oklahoma City, OK 73112 | Oil & Gas Operator | Feb 2026 |
| 5498 | Spencer Oil Company | Borger, TX 79007 | Oil & Gas Operator | Feb 2026 |
| 5499 | Spencer Oil Company LLC | Bartlesville, OK 74006 | Oil Operator | Jan 2015 |
| 5500 | Sperry R J | Dallas, TX 75254-8647 | Oil & Gas Operator | Aug 2013 |