| 5501 | Snuffy'S Oilfield Service Inc | Hennessey, OK 73742-6511 | Oil & Gas Operator | Nov 2014 |
| 5502 | Snyder Oil Company | Fort Worth, TX 76102 | Oil & Gas Operator | Mar 2015 |
| 5503 | Snyder Oil Corporation | Houston, TX 77024 | Oil & Gas Operator | Mar 2008 |
| 5504 | Snyder Partners | Cody, WY 82414 | Oil & Gas Operator | Feb 2024 |
| 5505 | Sogc, Inc. | Salt Lake Cty, UT 84131 | Oil & Gas Operator | Apr 2024 |
| 5506 | Sonata Oil & Gas Corp Inc | Stratford, OK 74812 | Oil & Gas Operator | Apr 2014 |
| 5507 | Song Production Company | Lindsay, OK 73052-0369 | Oil & Gas Operator | Jun 2015 |
| 5508 | Sonny'S Tank Trucks Inc | Velma, OK 73491-0129 | Oil Operator | Feb 2024 |
| 5509 | Sooner Crude Inc | Tulsa, OK 74136-9107 | Oil & Gas Operator | Sep 2008 |
| 5510 | Sooner Drilling Inc | Shawnee, OK 74802-0037 | Oil & Gas Operator | Jan 2005 |
| 5511 | Sooner Energy LLC | Norman, OK 73069 | Oil & Gas Operator | Sep 2005 |
| 5512 | Sooner Exploration & Development Co Inc | Enid, OK 73702-3525 | Oil & Gas Operator | Oct 2023 |
| 5513 | Sooner Oil & Gas | | Oil & Gas Operator | Jan 2024 |
| 5514 | Sooner Oil & Gas Management Inc | Guthrie, OK 73044-0639 | Oil & Gas Operator | Feb 2024 |
| 5515 | Sooner Oilfield Services Inc | Piedmont, OK 73078-0810 | Oil & Gas Operator | Feb 2024 |
| 5516 | Sooner Pipe & Supply Corp | | Oil & Gas Operator | Nov 2004 |
| 5517 | Sooner Trend Exploration Inc | Kingfisher, OK 73750-4752 | Oil & Gas Operator | Dec 2015 |
| 5518 | Sopac Exploration Inc | Drumright, OK 74030 | Oil & Gas Operator | Jun 1993 |
| 5519 | Sorrels J R Dba Cheyenne Oil Properties | Ponca City, OK 74602-0067 | Oil & Gas Operator | Jul 2022 |
| 5520 | South Burbank Petroleum Corporation | Midland, TX 79707-9027 | Oil Operator | Feb 2010 |
| 5521 | South Forty, The, Inc. | Laverne, OK 73848 | Oil & Gas Operator | Mar 2015 |
| 5522 | South Ranch Corporation | Austin, TX 78711-3062 | Oil Operator | Sep 2019 |
| 5523 | South Ranch Oil Company Inc | St. Louis, MO 63124 | Oil Operator | Sep 1996 |
| 5524 | South Sands Exploration LLC | Henryetta, OK 74437-4208 | Oil & Gas Operator | Jan 2024 |
| 5525 | Southbrook Energies Inc | Tulsa, OK 74153 | Oil Operator | Feb 2004 |
| 5526 | Southcreek Petroleum Co LLC | | Oil & Gas Operator | Oct 2023 |
| 5527 | Southerland Joe Don Dba Taylor Oil Co | Velma, OK 73491 | Oil & Gas Operator | Feb 2024 |
| 5528 | Southerland Marquieta Dba Keta Oil Company | Loco, OK 73442-1815 | Oil & Gas Operator | Feb 2024 |
| 5529 | Southern Int'L Inc | Oklahoma City, OK 73107 | Oil & Gas Operator | May 2007 |
| 5530 | Southern Management Inc | Camargo, OK 73835 | Oil Operator | Jun 1992 |
| 5531 | Southern Mineral Corporation | Houston, TX 77002 | Oil & Gas Operator | Oct 2001 |
| 5532 | Southern Oklahoma Production | | Oil Operator | Jan 2024 |
| 5533 | Southern Operating Corporation | Broken Arrow, OK 74014 | Oil & Gas Operator | May 2013 |
| 5534 | Southern Production Co | Healdton, OK 73438-0400 | Oil & Gas Operator | Feb 2024 |
| 5535 | Southern Resources Inc | Oklahoma City, OK 73118-4821 | Oil & Gas Operator | Feb 2024 |
| 5536 | Southern Star Central Gas Pipeline, Inc. | Owensboro, KY 42301 | Oil & Gas Operator | Dec 2023 |
| 5537 | Southern Star Operating LLC | | Oil & Gas Operator | Jun 2017 |
| 5538 | Southern Union Exploration Co. | Austin, TX 78701 | Oil & Gas Operator | Feb 2002 |
| 5539 | Southfourk Partners LLC | | Oil Operator | Jan 2024 |
| 5540 | Southland Energy Corporation | Houston, TX 77060 | Oil & Gas Operator | Aug 2022 |
| 5541 | Southland Royalty Company | Houston, TX 77210 | Oil & Gas Operator | Sep 2011 |
| 5542 | Southport Exploration Inc | Tulsa, OK 74103-4015 | Oil & Gas Operator | Nov 1998 |
| 5543 | Southstar Energy Corporation | Ardmore, OK 73401 | Gas Operator | Aug 1990 |
| 5544 | Southstar Oil And Gas Inc | Andover, KS 67002-0123 | Oil & Gas Operator | Jul 2020 |
| 5545 | Southwest Energy Development Inc | Waukomis, OK 73720-0022 | Oil & Gas Operator | Jan 2024 |
| 5546 | Southwest Energy LP | Houston, TX 77002 | Oil & Gas Operator | Sep 2022 |
| 5547 | Southwest Exploration Company | Oklahoma City, OK 73132-2230 | Oil & Gas Operator | Jun 2017 |
| 5548 | Southwest Petroleum Corp | Drumright, OK 74030-0552 | Oil & Gas Operator | Mar 2018 |
| 5549 | Southwest Petroleum Oil & Gas Explor LLC | San Bernardino, CA 92404-1010 | Oil & Gas Operator | Jun 2022 |
| 5550 | Southwest Royalties Inc | Midland, TX 79710 | Oil & Gas Operator | Apr 2024 |
| 5551 | Southwestern Exploration Consultants Inc | Oklahoma City, OK 73118-1116 | Oil & Gas Operator | Feb 2024 |
| 5552 | SP Energy Development Company | Seattle, WA 98101-3277 | Oil & Gas Operator | Mar 2015 |
| 5553 | Spark'S Energy Inc | Perry, OK 73077-0587 | Oil & Gas Operator | Nov 2014 |
| 5554 | Sparkman Rodger E | Jenks, OK 74037-0267 | Oil Operator | Sep 2018 |
| 5555 | Sparks Daniel M | Chickasha, OK 73023-1435 | Oil & Gas Operator | Apr 2014 |
| 5556 | Sparks Greg | Afton, OK 74331-3897 | Oil & Gas Operator | Jan 2024 |
| 5557 | Sparks Mick Oil Company Inc | Jennings, OK 74038-0250 | Oil & Gas Operator | Feb 2024 |
| 5558 | Sparks Petroleum Company | Oklahoma City, OK 73128 | Oil & Gas Operator | Mar 1998 |
| 5559 | Sparks Resources Inc | Bristow, OK 74010 | Oil & Gas Operator | Jan 2024 |
| 5560 | Sparlin J L | Oklahoma City, OK 73156-1446 | Oil Operator | Jan 2024 |
| 5561 | Sparrow Operating LLC | Comanche, OK 73529-9747 | Oil Operator | Feb 2024 |
| 5562 | Sparta Energy LLC | Edmond, OK 73083-8158 | Oil & Gas Operator | May 2020 |
| 5563 | Spartan Resources LLC | Oklahoma City, OK 73116 | Oil & Gas Operator | Feb 2024 |
| 5564 | Spearpoint Energy LLC | Seminole, OK 74818-1247 | Oil Operator | Jun 2015 |
| 5565 | Spears Terry | Osage, OK 74054 | Oil Operator | Nov 2023 |
| 5566 | Special Energy Corporation | Stillwater, OK 74076 | Oil & Gas Operator | Apr 2024 |
| 5567 | Spectrum Energy Inc | Scottsdale, AZ 85257 | Oil & Gas Operator | Oct 2003 |
| 5568 | Spectrum Field Services Inc | Tulsa, OK 74136-3400 | Oil & Gas Operator | Jan 2004 |
| 5569 | Spectrum Oil Company | Irving, TX 75063 | Oil & Gas Operator | May 2013 |
| 5570 | Spectrum Resources LLC | Charlotte, NC 28211-4081 | Oil Operator | Oct 2009 |
| 5571 | Speed James F | Ada, OK 74821-1221 | Oil & Gas Operator | Nov 2009 |
| 5572 | Speer Kenneth G | Seminole, OK 74818-1202 | Oil & Gas Operator | Dec 2001 |
| 5573 | Speir R M Operating Company | Jacksonville, TX 75766-8155 | Oil Operator | Jan 2024 |
| 5574 | Speller Oil Corporation | Oklahoma City, OK 73112 | Oil & Gas Operator | Jan 2024 |
| 5575 | Spencer Kevin LLC | Drumright, OK 74030-5825 | Oil & Gas Operator | Sep 2019 |
| 5576 | Spencer Oil Company | Borger, TX 79007 | Oil & Gas Operator | Jan 2024 |
| 5577 | Spencer Oil Company LLC | Dewey, OK 74029-0416 | Oil Operator | Jan 2015 |
| 5578 | Sperry R J | Dallas, TX 75254-8647 | Oil & Gas Operator | Aug 2013 |
| 5579 | Spess Oil Company Inc | Cleveland, OK 74020-4617 | Oil & Gas Operator | Feb 2024 |
| 5580 | Spicer Oil Company, Inc. | Dallas, TX 75225 | Oil & Gas Operator | Dec 2008 |
| 5581 | Spindletop Oil & Gas Co. | Dallas, TX 75230 | Oil & Gas Operator | Apr 2024 |
| 5582 | Spirit Energy Inc | Edmond, OK 73034 | Oil & Gas Operator | Apr 1999 |
| 5583 | Spitfire Energy Group LLC | | Oil Operator | Apr 2023 |
| 5584 | Splawn & Splawn | Saint Louis, OK 74866-0098 | Oil & Gas Operator | Aug 2023 |
| 5585 | Spragins Ed S | Wichita Falls, TX 76308-0670 | Oil & Gas Operator | Feb 2024 |
| 5586 | Spring Operating Company | Edmond, OK 73083-2048 | Oil & Gas Operator | Feb 2024 |
| 5587 | Spring Resources, Inc. | Oklahoma City, OK 73102 | Oil & Gas Operator | Jul 2007 |
| 5588 | Spring Tide Petroleum Inc | Broken Arrow, OK 74011-6651 | Oil & Gas Operator | Jan 2024 |
| 5589 | Spring Valley Oil & Gas Inc | Drummond, OK 73735-0175 | Oil & Gas Operator | Feb 2024 |
| 5590 | Spruiell Drilling Co., Inc. | Holliday, TX 76366 | Oil & Gas Operator | Apr 2024 |
| 5591 | Spur Operating Co. | Austin, TX 78701 | Oil & Gas Operator | Apr 2024 |
| 5592 | Spurgeon William Allan | Nowata, OK 74048-9713 | Oil Operator | Feb 2010 |
| 5593 | Spurgeon William C & Tammy D | Hominy, OK 74035 | Oil & Gas Operator | Jan 2024 |
| 5594 | Squirrel Oil & Gas Inc | Blackwell, OK 74631-0248 | Oil & Gas Operator | Mar 2022 |
| 5595 | SRW Operating LLC | Duncan, OK 73534-2087 | Oil & Gas Operator | Sep 2014 |
| 5596 | SSB Production LC | Ardmore, OK 73402-0998 | Oil & Gas Operator | Feb 2024 |
| 5597 | St Oil Company LLC | | Oil Operator | Feb 2024 |
| 5598 | St. Johns Operating #1 L.P. | Houston, TX 77060 | Oil & Gas Operator | Aug 2023 |
| 5599 | St. Mary Operating Company | Denver, CO 80203 | Oil & Gas Operator | Mar 2019 |
| 5600 | Staab Alan R | Tulsa, OK 74114-4213 | Oil & Gas Operator | Sep 2010 |