| 5401 | S & W Engine Supply Inc | Oklahoma City, OK 73143 | Oil Operator | Jan 2000 |
| 5402 | S & W Transports Inc | Velma, OK 73491 | Oil Operator | Dec 2024 |
| 5403 | S A C Operating Inc | Woodward, OK 73802-1749 | Oil & Gas Operator | Jan 1999 |
| 5404 | S H Production LLC | Tulsa, OK 74130-1418 | Oil & Gas Operator | Nov 2024 |
| 5405 | S J Oil Co. | Ellinwood, KS 67526 | Oil Operator | Jun 2000 |
| 5406 | S M Brothers Investments LLC | Denver, CO 80210-6059 | Oil Operator | Dec 2024 |
| 5407 | S N D Energy Company, Inc. | Kilgore, TX 75662 | Oil & Gas Operator | Mar 2025 |
| 5408 | S O S Recovery Inc | Enid, OK 73703-2403 | Oil & Gas Operator | Jul 2023 |
| 5409 | S R W Oil | Laverne, OK 73848 | Oil & Gas Operator | Sep 2024 |
| 5410 | S T Industries Inc | Drumright, OK 74030 | Oil & Gas Operator | Mar 2011 |
| 5411 | S/H Petroleum Corporation | Hennessey, OK 73742-0477 | Oil & Gas Operator | Feb 2016 |
| 5412 | Sabco Operating Company, LLC | Houston, TX 77056 | Oil & Gas Operator | Jun 2018 |
| 5413 | Saber Industries LP | Dallas, TX 75254 | Oil Operator | Dec 2024 |
| 5414 | Sabine Oil & Gas Corporation | Houston, TX 77002 | Oil & Gas Operator | Mar 2025 |
| 5415 | Sabine Oil & Gas LLC | Houston, TX 77002 | Oil & Gas Operator | Dec 2017 |
| 5416 | Sabine Production Company | | Oil & Gas Operator | Oct 1990 |
| 5417 | Sabos George U | Tulsa, OK 74170 | Oil & Gas Operator | Jan 2013 |
| 5418 | Sabre Operating, Inc. | Wichita Falls, TX 76308 | Oil & Gas Operator | Mar 2025 |
| 5419 | Sac & Fox Nation | Stroud, OK 74079 | Oil & Gas Operator | Nov 2024 |
| 5420 | Safe Earth Management Inc. | Hammond, OK 73650 | Oil Operator | Nov 2021 |
| 5421 | Safe Earth Management LLC | Hammon, OK 73650 | Oil Operator | Sep 2024 |
| 5422 | Safire Resources LLC | Bartlesville, OK 74005 | Oil & Gas Operator | Dec 2024 |
| 5423 | Sage Drilling Co | Wichita, KS 67202 | Oil & Gas Operator | Nov 1998 |
| 5424 | Sage Energy Company | San Antonio, TX 78215 | Oil & Gas Operator | Mar 2025 |
| 5425 | Sage NR Ok LLC | Tulsa, OK 74136 | Oil & Gas Operator | Jan 2025 |
| 5426 | Sagely, Floyd E Properties, LTD | Fort Smith, AR 72917-0308 | Gas Operator | Jan 2015 |
| 5427 | Saiber Michael L & Lora L | Saxonburg, PA 16056 | Oil Operator | Mar 1997 |
| 5428 | Sajac Energy Company LLC | Duncan, OK 73533 | Oil & Gas Operator | Jan 2025 |
| 5429 | Sallee Oil Corporation | Collinsville, OK 74021 | Oil & Gas Operator | Dec 2024 |
| 5430 | Salt Creek Energy Company LLC | Shawnee, OK 74802-1505 | Oil & Gas Operator | Dec 2024 |
| 5431 | Salt Creek Production, Inc. | Big Spring, TX 79721 | Oil & Gas Operator | Mar 2025 |
| 5432 | Salt Fork Producers Inc | Pond Creek, OK 73766 | Oil & Gas Operator | Jan 1995 |
| 5433 | Salt Plain Pipeline Corp | Edmond, OK 73013 | Oil & Gas Operator | Jun 2010 |
| 5434 | Salty Dog Disposal LLC | Cement, OK 73017 | Oil Operator | Feb 2025 |
| 5435 | Sam W Mays Jr LLC | Eureka, KS 67045 | Oil & Gas Operator | Apr 2018 |
| 5436 | Samedan Oil Corporation | Houston, TX 77067 | Oil & Gas Operator | Dec 2019 |
| 5437 | Samhill LLC | Tonkawa, OK 74653-5533 | Oil & Gas Operator | Dec 2024 |
| 5438 | Samis Oil Company, Inc. | Oklahoma City, OK 73156 | Oil & Gas Operator | Sep 2000 |
| 5439 | Samson Exploration LLC | Tulsa, OK 74101 | Oil & Gas Operator | Jan 2025 |
| 5440 | Samson Gas Producing Company | Tulsa, OK 74103 | Oil & Gas Operator | May 2001 |
| 5441 | Samson Hydrocarbons Company | Tulsa, OK 74103 | Oil & Gas Operator | Nov 2016 |
| 5442 | Samson Oil Company | | Oil & Gas Operator | Feb 2001 |
| 5443 | Samson Resources Company | Tulsa, OK 74103 | Oil & Gas Operator | Dec 2024 |
| 5444 | Samuel Joe L | Tulsa, OK 74135-7805 | Oil & Gas Operator | Jan 2001 |
| 5445 | San Francisco-Okla Pet Ex Inc | | Oil & Gas Operator | Apr 2014 |
| 5446 | San Marco Petroleum Inc | Denver, CO 80293 | Oil & Gas Operator | Feb 2025 |
| 5447 | Sananco Energy Corp | Naples, FL 33941 | Oil & Gas Operator | Jul 2013 |
| 5448 | Sanchez-O'Brien Oil & Gas Corp | Houston, TX 77057 | Oil & Gas Operator | May 1998 |
| 5449 | Sand Boy Production Company | Bartlesville, OK 74003-9273 | Oil & Gas Operator | Sep 2024 |
| 5450 | Sand Creek Resources LLC | Woodward, OK 73801-5222 | Oil & Gas Operator | Jan 2025 |
| 5451 | Sand Point LLC | Oklahoma City, OK 73132 | Oil & Gas Operator | Dec 2020 |
| 5452 | Sand Point Production Inc | Oklahoma City, OK 73172 | Oil & Gas Operator | Dec 2024 |
| 5453 | Sand Resources LLC | Norman, OK 73072-4805 | Oil & Gas Operator | Aug 2012 |
| 5454 | Sand Springs Oil & Gas Co. | Tulsa, OK 74136 | Oil & Gas Operator | Mar 2025 |
| 5455 | Sandia Operating Corp. | San Antonio, TX 78270 | Oil & Gas Operator | May 2010 |
| 5456 | Sandler Raymond C | Los Angeles, CA 90067 | Oil Operator | Dec 1999 |
| 5457 | Sandlot Oil & Gas LLC | Gruver, TX 79040 | Oil & Gas Operator | Mar 2025 |
| 5458 | Sandpoint Operating, LLC | San Antonio, TX 78209 | Oil & Gas Operator | Dec 2024 |
| 5459 | Sandra Corporation (The) | Pampa, TX 79066-2474 | Gas Operator | Oct 1996 |
| 5460 | Sandridge Energy, Inc. | Oklahoma City, OK 73102 | Oil & Gas Operator | May 2018 |
| 5461 | Sandridge Exploration And Production LLC | Oklahoma City, OK 73104 | Oil & Gas Operator | Mar 2025 |
| 5462 | Sandrock Energy LLC | Oklahoma City, OK 73112 | Oil & Gas Operator | Dec 2024 |
| 5463 | Sandstone Hills Energy Inc | Seminole, OK 74818-1938 | Oil & Gas Operator | Sep 2014 |
| 5464 | Sandstone Resources, Inc. | Houston, TX 77043 | Oil & Gas Operator | Mar 2025 |
| 5465 | Sandy Petroleum Inc | Shawnee, OK 74801-5634 | Oil & Gas Operator | Nov 2024 |
| 5466 | Sanford & Jenkins | Henryetta, OK 74437-1411 | Oil & Gas Operator | Mar 2015 |
| 5467 | Sanford Casondra | Ada, OK 74820-4460 | Oil & Gas Operator | May 2013 |
| 5468 | Sanguine Gas Exploration, LLC | Tulsa, OK 74119 | Oil & Gas Operator | Mar 2025 |
| 5469 | Sanguine Gathering Company | Tulsa, OK 74170 | Oil & Gas Operator | Jul 2018 |
| 5470 | Sanner Gail B & Gayle | Duncan, OK 73533-9407 | Oil & Gas Operator | Jul 2012 |
| 5471 | Sanner Jeffrey B Dba Bryant Lyn Production | Velma, OK 73491 | Oil Operator | Oct 2024 |
| 5472 | Sanner Oil Co LLC | Duncan, OK 73533 | Oil Operator | Dec 2024 |
| 5473 | Sanner Oil Company | Velma, OK 73491-0550 | Oil & Gas Operator | Jan 2014 |
| 5474 | Sanook Inc | Oklahoma City, OK 73156-0548 | Oil & Gas Operator | Jan 2007 |
| 5475 | Sanquip LLC | Oklahoma City, OK 73106 | Oil & Gas Operator | Sep 2024 |
| 5476 | Santa Fe Braun, Inc | Dallas, TX 75240-6620 | Oil & Gas Operator | Mar 1995 |
| 5477 | Santa Fe Energy Company | Midland, TX 79701 | Oil & Gas Operator | Dec 2015 |
| 5478 | Santa Fe Energy Operating Partner LP | Midland, TX 79701 | Oil & Gas Operator | Sep 2004 |
| 5479 | Santa Fe Minerals, Inc. | Dallas, TX 75240 | Oil & Gas Operator | Sep 2013 |
| 5480 | Santa Fe-Andover Oil Co | Tulsa, OK 74172 | Oil & Gas Operator | Sep 2000 |
| 5481 | Santa Rita Resources Inc & Subs | | Oil & Gas Operator | Mar 2015 |
| 5482 | Santo Resources Inc | Oklahoma City, OK 73154 | Oil & Gas Operator | Nov 1998 |
| 5483 | Saqus Oil Co | Oklahoma City, OK 73107 | Oil & Gas Operator | May 2001 |
| 5484 | Sarkeys Inc | | Oil & Gas Operator | Dec 1998 |
| 5485 | Sasakwa Operating LLC | Oklahoma City, OK 73179-1902 | Oil & Gas Operator | Nov 2024 |
| 5486 | Sasser Company Inc (The) | Perkins, OK 74059 | Oil & Gas Operator | Oct 2024 |
| 5487 | Saucier Oil & Gas LLC | Cement, OK 73017 | Oil Operator | Jan 2025 |
| 5488 | Savage Exploration, Inc. | San Marcos, TX 78666 | Oil & Gas Operator | Mar 2025 |
| 5489 | Savoy Energy LP | Traverse City, MI 49685-1560-1560 | Oil & Gas Operator | Dec 2024 |
| 5490 | Saylor Weldon W | Tulsa, OK 74105-5325 | Gas Operator | Dec 1994 |
| 5491 | Sboc LLC | Hallett, OK 74034 | Oil Operator | Dec 2024 |
| 5492 | SBR Oil LLC | Ada, OK 74820 | Oil Operator | Nov 2024 |
| 5493 | Scambler Energy Group LTD Co | Colony, OK 73021 | Oil & Gas Operator | Jan 2025 |
| 5494 | Scana Exploration Company | Houston, TX 77002 | Oil & Gas Operator | Dec 1999 |
| 5495 | Scana Petroleum Resources Inc | Houston, TX 77002 | Oil & Gas Operator | Jun 2013 |
| 5496 | Scana Production Company | Houston, TX 77002 | Oil & Gas Operator | Mar 2005 |
| 5497 | Scarth Oil & Gas Co | Amarillo, TX 79101 | Oil & Gas Operator | Feb 1999 |
| 5498 | Scavenger Oil Co., Inc. | Englewood, CO 80111 | Oil & Gas Operator | Mar 2000 |
| 5499 | Schad Jeffrey M | Mannford, OK 74044-0995 | Oil Operator | Sep 2021 |
| 5500 | Schell Sam H | Barnsdall, OK 74002 | Oil & Gas Operator | Aug 1999 |