| 28201 | Sonora Petroleum Corp. | Austin, TX 78734 | Oil & Gas Operator | Feb 2026 |
| 28202 | Sonora Producing, Inc. | | Oil & Gas Operator | May 2006 |
| 28203 | Sonoran Energy Inc. | Addison, TX 75001 | Oil & Gas Operator | Feb 2026 |
| 28204 | Sonriver Energy LLC | Morris, OK 74445-2054 | Oil & Gas Operator | Jun 2023 |
| 28205 | Sonterra Energy LLC | Wichita, KS 67226 | Oil & Gas Operator | Jul 2022 |
| 28206 | Sonterra Oil & Gas, Inc. | Wichita, KS 67217 | Oil & Gas Operator | Feb 2026 |
| 28207 | Sonterra Operating, Inc. | Houston, TX 77060 | Oil & Gas Operator | Feb 2026 |
| 28208 | Sooner Acquisition Corp | Wichita, KS 67206 | Oil & Gas Operator | Sep 1993 |
| 28209 | Sooner Corp | | Oil & Gas Operator | Oct 1990 |
| 28210 | Sooner Crude Inc | Tulsa, OK 74136-9107 | Oil & Gas Operator | Sep 2008 |
| 28211 | Sooner Drilling Inc | Shawnee, OK 74802-0037 | Oil & Gas Operator | Jan 2005 |
| 28212 | Sooner Energy LLC | Norman, OK 73069 | Oil & Gas Operator | Sep 2005 |
| 28213 | Sooner Exploration & Development Co Inc | Enid, OK 73702-3525 | Oil & Gas Operator | Oct 2023 |
| 28214 | Sooner Oil & Gas LLC | Fairview, OK 73737-1806 | Oil & Gas Operator | Nov 2025 |
| 28215 | Sooner Oil & Gas Management Inc | Crescent, OK 73028 | Oil & Gas Operator | Dec 2025 |
| 28216 | Sooner Oilfield Services Inc | Piedmont, OK 73078-0810 | Oil & Gas Operator | May 2024 |
| 28217 | Sooner Operating Co Inc | Casper, WY 83602 | Oil Operator | Dec 2025 |
| 28218 | Sooner Pipe & Supply Corp | | Oil & Gas Operator | Nov 2004 |
| 28219 | Sooner Resources, Inc. | | Oil & Gas Operator | Mar 1987 |
| 28220 | Sooner Trend Exploration Inc | Kingfisher, OK 73750-4752 | Oil & Gas Operator | Dec 2015 |
| 28221 | Sopac Exploration Inc | Drumright, OK 74030 | Oil & Gas Operator | Jun 1993 |
| 28222 | Soper Production | | Oil & Gas Operator | Dec 2011 |
| 28223 | Sorensen, Kim A. | Abbyville, KS 67510 | Oil Operator | Mar 2025 |
| 28224 | Sorrels J R Dba Cheyenne Oil Properties | Ponca City, OK 74601 | Oil & Gas Operator | Jul 2022 |
| 28225 | Sorto, Peters God | Somerset, TX 78069 | Oil Operator | Feb 2026 |
| 28226 | Soto Inc. | Ozona, TX 76943 | Oil & Gas Operator | Aug 2020 |
| 28227 | Sotol Energy, Inc. | Magnolia, TX 77354 | Oil & Gas Operator | Apr 2025 |
| 28228 | Sotrana-Texas Corp. | | Oil & Gas Operator | Oct 1984 |
| 28229 | Sotta, Donald E. | McCune, KS 66753 | Oil Operator | Jul 2025 |
| 28230 | Soule, Gilbert A. | Madison, KS 66860 | Oil Operator | Jan 2002 |
| 28231 | Soule, Richard A. | Eureka, KS 67045 | Oil Operator | Sep 2019 |
| 28232 | Sound Energy Co Inc | Dover, OH 44622 | Oil & Gas Operator | Sep 2025 |
| 28233 | Sound Resources Corporation | | Oil & Gas Operator | Dec 2003 |
| 28234 | Sounion Petroleum Incorporated | Baltimore, MD 21218 | Oil & Gas Operator | Aug 1994 |
| 28235 | Source Energy Corp. | | Gas Operator | Aug 2022 |
| 28236 | Source Energy Midcon LLC | Highlands Ranch, CO 80129 | Oil Operator | Jul 2015 |
| 28237 | Source Petroleum | Wichita, KS 67202 | Oil & Gas Operator | Oct 1993 |
| 28238 | Source Petroleum Inc. | San Antonio, TX 78265 | Oil & Gas Operator | Feb 2026 |
| 28239 | Sourcegas Energy Services Co | Golden, CO 80401 | Gas Operator | Jun 2015 |
| 28240 | Sours Thomas J | Sharon Center, OH 44274 | Oil & Gas Operator | Dec 2022 |
| 28241 | South Bay Oil Corporation | Wichita, KS 67202 | Oil Operator | Dec 2019 |
| 28242 | South Bay Resources, L.L.C. | San Antonio, TX 78209 | Oil & Gas Operator | Feb 2026 |
| 28243 | South Burbank Petroleum Corporation | Midland, TX 79707-9027 | Oil Operator | Feb 2010 |
| 28244 | South Carlton Operating Company, LLC | | Oil Operator | Sep 2025 |
| 28245 | South Central Oil And Gas | | Oil & Gas Operator | Feb 2014 |
| 28246 | South Central Petroleum, Inc. | | Oil & Gas Operator | Dec 1988 |
| 28247 | South Central Texas Oil & Gas Co | Houston, TX 77060 | Oil & Gas Operator | Feb 2026 |
| 28248 | South Coast Oil Corporation | Boulder, CO 80302 | Oil & Gas Operator | Oct 2015 |
| 28249 | South Coast Oil, Inc. | | Oil & Gas Operator | Jul 1989 |
| 28250 | South Florida Investment Company | Pampa, TX 79066 | Oil & Gas Operator | Jun 1997 |
| 28251 | South Fork Energy, LLC - (Ca) | | Oil Operator | Dec 2021 |
| 28252 | South Fork Ranch | | Oil & Gas Operator | Feb 2013 |
| 28253 | South Forty Energy, Inc. | Giddings, TX 78942 | Oil & Gas Operator | Oct 1993 |
| 28254 | South Forty Inc (The) | Laverne, OK 73848 | Oil & Gas Operator | Mar 2015 |
| 28255 | South Heart Company | | Oil Operator | Aug 2010 |
| 28256 | South Houston Production Company | Muenster, TX 76252 | Oil & Gas Operator | Feb 2026 |
| 28257 | South La. Production Co., Inc. | | Oil & Gas Operator | Jun 1982 |
| 28258 | South Leeville, LLC | Houston, TX 77069 | Oil & Gas Operator | Oct 2022 |
| 28259 | South Loop Operating, L.C. | San Antonio, TX 78279 | Oil & Gas Operator | Apr 2009 |
| 28260 | South Oak Production Company | | Oil & Gas Operator | Jun 2010 |
| 28261 | South Of Briles | | Oil Operator | Aug 1989 |
| 28262 | South Oil, Inc. | Houston, TX 77057 | Oil & Gas Operator | Nov 2018 |
| 28263 | South Pass Petroleum Inc | Casper, WY 82601 | Oil & Gas Operator | Nov 2025 |
| 28264 | South Ranch Corporation | Midland, TX 79707 | Oil Operator | Sep 2019 |
| 28265 | South Ranch Oil | | Gas Operator | Dec 1990 |
| 28266 | South Ranch Oil Company Inc | St. Louis, MO 63124 | Oil Operator | Sep 1996 |
| 28267 | South River Operating, LLC | | Oil & Gas Operator | Dec 2016 |
| 28268 | South Sam Operating Company, LLC | Lakehills, TX 78063 | Oil Operator | Feb 2026 |
| 28269 | South Sands Exploration LLC | Henryetta, OK 74437-4208 | Oil & Gas Operator | Nov 2025 |
| 28270 | South Shore Energy LLC | Geneva, OH 44041 | Oil & Gas Operator | Dec 2024 |
| 28271 | South Texas Drilling & Expl, Inc | San Antonio, TX 78217 | Oil & Gas Operator | Jan 1999 |
| 28272 | South Texas Energy Production | Devine, TX 78016 | Oil & Gas Operator | Dec 1996 |
| 28273 | South Texas Injection Company | Mineral, TX 78125 | Oil & Gas Operator | Dec 2016 |
| 28274 | South Texas Limited Partnership | Houston, TX 77060 | Oil & Gas Operator | Feb 1994 |
| 28275 | South Texas Operating Company | San Antonio, TX 78217 | Oil & Gas Operator | Feb 2026 |
| 28276 | South Texas SWD, Inc. | Beeville, TX 78104 | Oil & Gas Operator | Aug 2003 |
| 28277 | South West Texas Oil & Gas, Inc. | Luling, TX 78648 | Oil & Gas Operator | Feb 2000 |
| 28278 | Southampton Mineral Corp. | | Oil & Gas Operator | Aug 2005 |
| 28279 | Southbound Gas Company | Dallas, TX 75201 | Gas Operator | Dec 2025 |
| 28280 | Southbrook Energies Inc | Tulsa, OK 74153 | Oil Operator | Feb 2004 |
| 28281 | Southco Oil And Gas Inc. | | Oil & Gas Operator | Nov 2000 |
| 28282 | Southcoast Production Inc | Houston, TX 77010 | Oil & Gas Operator | Feb 2026 |
| 28283 | Southcoast Resources, LLC | Fort Worth, TX 76116 | Oil & Gas Operator | Dec 2015 |
| 28284 | Southcreek Petroleum Co LLC | Blanchard, OK 73010-4911 | Oil & Gas Operator | Oct 2025 |
| 28285 | Southcross Operating LLC | Amarillo, TX 79114 | Oil & Gas Operator | Oct 2005 |
| 28286 | Southeast Exploration Corp | Oklahoma City, OK 73112 | Oil & Gas Operator | Sep 1991 |
| 28287 | Southeastern Energy, Inc | Edmonton, KY 42129 | Gas Operator | Dec 2022 |
| 28288 | Southeastern Gas Company | | Oil & Gas Operator | Dec 2019 |
| 28289 | Southeastern Oil & Gas Corp | | Oil Operator | Dec 2023 |
| 28290 | Southeastern Petroleum Inc | Roswell, NM BAD ADDR | Oil & Gas Operator | Dec 1995 |
| 28291 | Southeastern Pipe Line Company | Tyler, TX 75711 | Oil & Gas Operator | Dec 2020 |
| 28292 | Southeastern Producing Co | | Oil Operator | Jul 1988 |
| 28293 | Southeastern Public Service Co | | Oil & Gas Operator | Sep 1982 |
| 28294 | Southeastern Resources Corp. | Mansfield, TX 76063 | Oil & Gas Operator | Feb 2004 |
| 28295 | Southerland Jackie Dale Dba Skyden Oil | Duncan, OK 73533-5392 | Oil & Gas Operator | Dec 2025 |
| 28296 | Southerland Joe Don Dba Taylor Oil Co | Duncan, OK 73533 | Oil & Gas Operator | Nov 2025 |
| 28297 | Southerland Marquieta Dba Keta Oil Company | Loco, OK 73442 | Oil & Gas Operator | Nov 2025 |
| 28298 | Southerland, Glenn Oil & Gas Co. | Hallsville, TX 75650 | Oil & Gas Operator | Feb 2021 |
| 28299 | Southern Alliance Oil Corp. | Grapevine, TX 76099 | Oil & Gas Operator | Feb 2026 |
| 28300 | Southern Bay Operating, L.L.C. | Houston, TX 77002 | Oil & Gas Operator | Jun 2013 |