| 27401 | Solatex Resources, LTD | Houston, TX 77257 | Oil & Gas Operator | May 2025 |
| 27402 | Soldier Creek Energy, LLC | Edmond, OK 73013 | Oil & Gas Operator | May 2025 |
| 27403 | Soldier Operating LLC | | Oil & Gas Operator | Dec 2024 |
| 27404 | Soles Larry - Fe | | Oil Operator | Nov 1986 |
| 27405 | Solid Rock Prod. | | Oil Operator | Nov 1994 |
| 27406 | Solimar Energy LLC | | Oil & Gas Operator | Feb 2025 |
| 27407 | Solis Partners, L.L.C. | Midland, TX 79707 | Oil & Gas Operator | Feb 2025 |
| 27408 | Sollohub Petro LLC | Von Ormy, TX 78073 | Oil Operator | May 2025 |
| 27409 | Solo Operating Services, LLC | Falfurrias, TX 78355 | Gas Operator | May 2025 |
| 27410 | Solomon Exploration Inc. | Havre, MT 59501 | Gas Operator | Feb 2025 |
| 27411 | Solomon Production Corporation | Pullman, WV 26421-0003 | Oil & Gas Operator | Dec 2021 |
| 27412 | Solutions Projects And Consulting, LLC | Houston, TX 77070 | Oil Operator | May 2025 |
| 27413 | Somerset Energy | | Oil Operator | Feb 1986 |
| 27414 | Somerset Energy, Inc. | Louisburg, KS 66053 | Oil Operator | Dec 2024 |
| 27415 | Somerset Oil & Gas Company | Portland, TX 78374 | Oil & Gas Operator | Dec 2006 |
| 27416 | Somerset Operating, LLC | Weatherford, TX 76086 | Gas Operator | May 2025 |
| 27417 | Somex Energy Company | San Antonio, TX 78230 | Oil & Gas Operator | Mar 2002 |
| 27418 | Sommer Oil LLC | Richmond, KS 66080 | Oil Operator | Dec 2024 |
| 27419 | Somoco Inc | | Oil & Gas Operator | Mar 2025 |
| 27420 | Somont Oil Co., Inc. | Spring, TX 77379 | Oil & Gas Operator | Mar 2025 |
| 27421 | Son-Dad Oil & Gas | | Oil & Gas Operator | Dec 1994 |
| 27422 | Sonat Exploration Co. | Houston, TX 77251 | Oil & Gas Operator | Dec 2021 |
| 27423 | Sonat Exploration Co. - Houston | Houston, TX 77251 | Oil & Gas Operator | Dec 1999 |
| 27424 | Sonat Exploration Co. - Midland | Houston, TX 77251 | Oil & Gas Operator | Mar 1999 |
| 27425 | Sonat Exploration Company -Tyler | Houston, TX 77251 | Oil & Gas Operator | Dec 1999 |
| 27426 | Sonat Exploration Company-MCR | Houston, TX 77251 | Oil & Gas Operator | Dec 1999 |
| 27427 | Sonat Exploration Gom Inc. | Houston, TX 77251 | Oil & Gas Operator | Dec 1999 |
| 27428 | Sonat Raton, L.L.C. | | Gas Operator | Sep 2005 |
| 27429 | Sonata Oil & Gas Corp Inc | Stratford, OK 74812 | Oil & Gas Operator | Apr 2014 |
| 27430 | Sone Energy Corporation | Plano, TX 75023 | Oil & Gas Operator | Sep 1995 |
| 27431 | Sonerra Resources Corporation | Nacogdoches, TX 75963 | Oil & Gas Operator | May 2025 |
| 27432 | Song Production Company | Lindsay, OK 73052-0369 | Oil & Gas Operator | Jun 2015 |
| 27433 | Songer Harriett R | Brookville, PA 15825-5367 | Oil & Gas Operator | Dec 2010 |
| 27434 | Sonkar, Inc. | Sunburst, MT 59482 | Oil Operator | Apr 2025 |
| 27435 | Sonny King | | Oil & Gas Operator | Jan 2025 |
| 27436 | Sonny King Production | | Oil & Gas Operator | Jan 2025 |
| 27437 | Sonny'S Tank Trucks Inc | Ratliff City, OK 73481 | Oil Operator | Mar 2025 |
| 27438 | Sonoble Operating, Inc. | Dallas, TX 75240 | Oil & Gas Operator | Jun 2003 |
| 27439 | Sonoma Energy Corporation | Park City, UT 84068 | Oil & Gas Operator | Feb 2010 |
| 27440 | Sonoma Resources LLC | Andover, KS 67002 | Oil & Gas Operator | Jan 2025 |
| 27441 | Sonora Petroleum Corp. | Austin, TX 78734 | Oil & Gas Operator | May 2025 |
| 27442 | Sonora Producing, Inc. | | Oil & Gas Operator | May 2006 |
| 27443 | Sonoran Energy Inc. | Addison, TX 75001 | Oil & Gas Operator | May 2025 |
| 27444 | Sonterra Energy LLC | Wichita, KS 67226 | Oil & Gas Operator | Jul 2022 |
| 27445 | Sonterra Oil & Gas, Inc. | Wichita, KS 67217 | Oil & Gas Operator | May 2025 |
| 27446 | Sonterra Operating, Inc. | Houston, TX 77060 | Oil & Gas Operator | May 2025 |
| 27447 | Sooner Acquisition Corp | Wichita, KS 67206 | Oil & Gas Operator | Sep 1993 |
| 27448 | Sooner Corporation | | Oil & Gas Operator | Oct 1990 |
| 27449 | Sooner Crude Inc | Tulsa, OK 74136-9107 | Oil & Gas Operator | Sep 2008 |
| 27450 | Sooner Drilling Inc | Shawnee, OK 74802-0037 | Oil & Gas Operator | Jan 2005 |
| 27451 | Sooner Energy LLC | Norman, OK 73069 | Oil & Gas Operator | Sep 2005 |
| 27452 | Sooner Exploration & Development Co Inc | Enid, OK 73702-3525 | Oil & Gas Operator | Oct 2023 |
| 27453 | Sooner Oil & Gas LLC | Fairview, OK 73737-1806 | Oil & Gas Operator | Mar 2025 |
| 27454 | Sooner Oil & Gas Management Inc | Crescent, OK 73028 | Oil & Gas Operator | Mar 2025 |
| 27455 | Sooner Oilfield Services Inc | Piedmont, OK 73078-0810 | Oil & Gas Operator | May 2024 |
| 27456 | Sooner Operating Co Inc | Casper, WY 83602 | Oil Operator | Apr 2025 |
| 27457 | Sooner Pipe & Supply Corp | | Oil & Gas Operator | Nov 2004 |
| 27458 | Sooner Resources, Inc. | | Oil & Gas Operator | Mar 1987 |
| 27459 | Sooner Trend Exploration Inc | Kingfisher, OK 73750-4752 | Oil & Gas Operator | Dec 2015 |
| 27460 | Sopac Exploration Inc | Drumright, OK 74030 | Oil & Gas Operator | Jun 1993 |
| 27461 | Soper Production | | Oil & Gas Operator | Dec 2011 |
| 27462 | Sorensen, Kim A. | Abbyville, KS 67510 | Oil Operator | Oct 2024 |
| 27463 | Sorrels J R Dba Cheyenne Oil Properties | Ponca City, OK 74601 | Oil & Gas Operator | Jul 2022 |
| 27464 | Sorto, Peters God | Somerset, TX 78069 | Oil Operator | May 2025 |
| 27465 | Soto Inc. | Ozona, TX 76943 | Oil & Gas Operator | Aug 2020 |
| 27466 | Sotol Energy, Inc. | Magnolia, TX 77354 | Oil & Gas Operator | May 2025 |
| 27467 | Sotrana-Texas Corp. | | Oil & Gas Operator | Oct 1984 |
| 27468 | Sotta, Donald E. | McCune, KS 66753 | Oil Operator | Dec 2024 |
| 27469 | Soule, Gilbert A. | Madison, KS 66860 | Oil Operator | Jan 2002 |
| 27470 | Soule, Richard A. | Eureka, KS 67045 | Oil Operator | Sep 2019 |
| 27471 | Sound Energy Co Inc | Dover, OH 44622 | Oil & Gas Operator | Dec 2024 |
| 27472 | Sound Resources Corporation | | Oil & Gas Operator | Dec 2003 |
| 27473 | Sounion Petroleum Incorporated | Baltimore, MD 21218 | Oil & Gas Operator | Aug 1994 |
| 27474 | Source Energy Corp. | | Gas Operator | Aug 2022 |
| 27475 | Source Energy Midcon LLC | Highlands Ranch, CO 80129 | Oil Operator | Jul 2015 |
| 27476 | Source Petroleum | Wichita, KS 67202 | Oil & Gas Operator | Oct 1993 |
| 27477 | Source Petroleum Inc. | San Antonio, TX 78265 | Oil & Gas Operator | May 2025 |
| 27478 | Sourcegas Energy Services Co | Golden, CO 80401 | Gas Operator | Jun 2015 |
| 27479 | Sours Thomas J | Sharon Center, OH 44274 | Oil & Gas Operator | Dec 2022 |
| 27480 | South Bay Oil Corporation | Wichita, KS 67202 | Oil Operator | Dec 2019 |
| 27481 | South Bay Resources, L.L.C. | San Antonio, TX 78209 | Oil & Gas Operator | May 2025 |
| 27482 | South Burbank Petroleum Corporation | Midland, TX 79707-9027 | Oil Operator | Feb 2010 |
| 27483 | South Carlton Operating Company, LLC | Natchez, MS 39121 | Oil Operator | Feb 2025 |
| 27484 | South Central Oil And Gas | | Oil & Gas Operator | Feb 2014 |
| 27485 | South Central Petroleum, Inc. | | Oil & Gas Operator | Dec 1988 |
| 27486 | South Central Texas Oil & Gas Co | Houston, TX 77060 | Oil & Gas Operator | May 2025 |
| 27487 | South Coast Oil Corporation | Boulder, CO 80302 | Oil & Gas Operator | Oct 2015 |
| 27488 | South Coast Oil, Inc. | | Oil & Gas Operator | Jul 1989 |
| 27489 | South Florida Investment Company | Pampa, TX 79066 | Oil & Gas Operator | Jun 1997 |
| 27490 | South Fork Energy, LLC - (Ca) | | Oil Operator | Dec 2020 |
| 27491 | South Fork Ranch | | Oil & Gas Operator | Feb 2013 |
| 27492 | South Forty Energy, Inc. | Giddings, TX 78942 | Oil & Gas Operator | Oct 1993 |
| 27493 | South Forty, The, Inc. | Laverne, OK 73848 | Oil & Gas Operator | Mar 2015 |
| 27494 | South Heart Company | | Oil Operator | Aug 2010 |
| 27495 | South Houston Production Company | Muenster, TX 76252 | Oil & Gas Operator | May 2025 |
| 27496 | South La. Production Co., Inc. | | Oil & Gas Operator | Jun 1982 |
| 27497 | South Leeville, LLC | Houston, TX 77069 | Oil & Gas Operator | Oct 2022 |
| 27498 | South Loop Operating, L.C. | San Antonio, TX 78279 | Oil & Gas Operator | Apr 2009 |
| 27499 | South Oak Production Company | | Oil & Gas Operator | Jun 2010 |
| 27500 | South Of Briles | | Oil Operator | Aug 1989 |