| 28101 | Snelgrooes Oil Company Inc | Maysville, OK 73057-0631 | Oil & Gas Operator | Nov 2014 |
| 28102 | Snelgrooes Well Service Inc | Elmore City, OK 73433 | Oil & Gas Operator | May 2003 |
| 28103 | Snider Brothers | Gratiot, OH 43740 | Oil & Gas Operator | Dec 2015 |
| 28104 | Snider Russell E | Newark, OH 43055 | Oil & Gas Operator | Dec 2014 |
| 28105 | Snow Oil & Gas Inc. | Andrews, TX 79714 | Oil & Gas Operator | Feb 2026 |
| 28106 | Snow Oil Company | Nocona, TX 76255 | Oil Operator | Feb 2026 |
| 28107 | Snow Operating Co., Inc. | Haltom City, TX 76117 | Oil & Gas Operator | Feb 2024 |
| 28108 | Snow, Bryan R. | Graham, TX 76450 | Oil & Gas Operator | Feb 2026 |
| 28109 | Snow, Shannon | Gerry, NY 14733 | Gas Operator | Dec 2024 |
| 28110 | Snowy Owl LLC | Gillette, WY 82717 | Oil & Gas Operator | Dec 2025 |
| 28111 | SNR Central Oklahoma Operating LLC | Oklahoma City, OK 73116-7906 | Oil Operator | Dec 2025 |
| 28112 | SNR Kansas Operating, LLC | Oklahoma City, OK 73116 | Oil & Gas Operator | Dec 2019 |
| 28113 | SNR Operating, LLC | Nichols Hill, OK 73116 | Oil & Gas Operator | Feb 2026 |
| 28114 | Snuffy'S Oilfield Service Inc | Hennessey, OK 73742-6511 | Oil & Gas Operator | Nov 2014 |
| 28115 | Snuggs Oil Company | Gainesville, TX 76240 | Oil & Gas Operator | Jan 2024 |
| 28116 | SNW Operating Company | Borger, TX 79008 | Oil & Gas Operator | Feb 2026 |
| 28117 | Snyder Bros Inc | Kittanning, PA 16201 | Oil & Gas Operator | Dec 2025 |
| 28118 | Snyder Brothers, Inc. | | Oil & Gas Operator | Dec 2018 |
| 28119 | Snyder Drilling Corp. | Albany, TX 76430 | Oil & Gas Operator | Feb 2026 |
| 28120 | Snyder K E Compa | | Oil Operator | Jul 1987 |
| 28121 | Snyder Oil Company | Fort Worth, TX 76102 | Oil & Gas Operator | Mar 2015 |
| 28122 | Snyder Oil Corporation | Houston, TX 77024 | Oil & Gas Operator | Mar 2008 |
| 28123 | Snyder Oper Partnership | FT Worth, TX 76102 | Gas Operator | Dec 1988 |
| 28124 | Snyder Partners | Cody, WY 82414 | Oil & Gas Operator | Nov 2025 |
| 28125 | Snyder Partners, General Partnership | Cody, WY 82414 | Oil & Gas Operator | Jul 2019 |
| 28126 | Snyder, Jim Estate (Deceased) | Hamilton, KS 66853 | Oil Operator | Dec 2009 |
| 28127 | Snyder, K. Lance | Hamilton, KS 66853 | Oil Operator | Nov 2004 |
| 28128 | Snyder, Kenneth L. | Springville, NY 14141 | Gas Operator | Dec 2024 |
| 28129 | Snyder, Larry G. | South Dayton, NY 14138 | Gas Operator | Dec 2024 |
| 28130 | Snyder, Robert R | | Oil Operator | Dec 2012 |
| 28131 | So & Jo, LLC | Kansas City, MO 64158 | Oil Operator | Dec 2021 |
| 28132 | So Operating Company | Cisco, TX 76437 | Oil & Gas Operator | Feb 2026 |
| 28133 | So-I , A General Partnership | Kansas City, MO 64106 | Oil & Gas Operator | Jun 2025 |
| 28134 | Soap Creek Associates, Inc. | Broomfield, CO 80020-2995 | Oil Operator | Nov 2025 |
| 28135 | Soc Resources Inc. | | Oil & Gas Operator | Dec 2024 |
| 28136 | Society Of Bros In Pa Inc | Farmington, PA 15437-0240 | Gas Operator | Dec 2025 |
| 28137 | Soco Gas Properties | Goliad, TX 77963 | Oil & Gas Operator | Feb 2026 |
| 28138 | Socorro Exploration, Inc. | Lubbock, TX 79464 | Oil & Gas Operator | Feb 2026 |
| 28139 | Socorro Pet Co | Oklahoma City, OK 73102 | Oil & Gas Operator | Jan 1995 |
| 28140 | Sogc, Inc. | Salt Lake Cty, UT 84131 | Oil & Gas Operator | Dec 2025 |
| 28141 | Sogc, LLC | Salt Lake Cty, UT 84131 | Oil & Gas Operator | Feb 2026 |
| 28142 | Sogo III LLC | Midland, TX 79702 | Oil & Gas Operator | Jul 2017 |
| 28143 | Sohio Alaska Petroleum Company | | Oil & Gas Operator | Dec 1981 |
| 28144 | Sohio Petr Co-Gulf Oil Corp | | Oil & Gas Operator | Dec 1979 |
| 28145 | Sohio Petroleum Co. | Casper, WY 82602 | Oil & Gas Operator | Apr 1986 |
| 28146 | Sohio Petroleum Co. Et Al | | Oil & Gas Operator | May 1979 |
| 28147 | Sohio-Stand Oil Prod Co | Houston, TX 77210-9928 | Oil & Gas Operator | Jan 1989 |
| 28148 | Soil Energy, Inc. | Imperial, TX 79743 | Oil & Gas Operator | Feb 2026 |
| 28149 | Sois-Osage Inc | | Oil & Gas Operator | Oct 2006 |
| 28150 | Sojitz Energy Venture, Inc. | Houston, TX 77042 | Oil & Gas Operator | Feb 2018 |
| 28151 | Sojourner Drilling Corporation | Abilene, TX 79604 | Oil & Gas Operator | Feb 2026 |
| 28152 | Sokan Operating, LLC | Medicine Lodge, KS 67104 | Oil & Gas Operator | Sep 2025 |
| 28153 | Sol Oil Co., L.C. | Crane, TX 79731 | Oil Operator | Feb 2026 |
| 28154 | Sola Oil Company, Inc. | | Oil & Gas Operator | Aug 1991 |
| 28155 | Sola Operating, LLC | Trout, LA 71371 | Oil Operator | Feb 2026 |
| 28156 | Solano Gas Processing, Inc. | Austin, TX 78759 | Oil & Gas Operator | Aug 1998 |
| 28157 | Solar Exploration TX LLC | Tulsa, OK 74133 | Oil Operator | Dec 2018 |
| 28158 | Solar Petroleum Inc | | Oil Operator | May 1983 |
| 28159 | Solar Sportsystems, Inc. | East Aurora, NY 14052 | Gas Operator | Dec 2024 |
| 28160 | Solatex | | Oil & Gas Operator | Oct 1978 |
| 28161 | Solatex Resources, LTD | Houston, TX 77257 | Oil & Gas Operator | Feb 2026 |
| 28162 | Soldier Creek Energy, LLC | Edmond, OK 73013 | Oil & Gas Operator | Feb 2026 |
| 28163 | Soldier Operating LLC | | Oil & Gas Operator | Dec 2024 |
| 28164 | Soles Larry - Fe | | Oil Operator | Nov 1986 |
| 28165 | Solid Rock Prod. | | Oil Operator | Nov 1994 |
| 28166 | Solimar Energy LLC | | Oil & Gas Operator | Nov 2025 |
| 28167 | Solis Partners, L.L.C. | Midland, TX 79707 | Oil & Gas Operator | Dec 2025 |
| 28168 | Sollohub Petro LLC | Von Ormy, TX 78073 | Oil Operator | Feb 2026 |
| 28169 | Solomon Exploration | | Gas Operator | Apr 1998 |
| 28170 | Solomon Exploration Inc. | Havre, MT 59501 | Gas Operator | Jul 2025 |
| 28171 | Solomon Production Corporation | Pullman, WV 26421-0003 | Oil & Gas Operator | Dec 2021 |
| 28172 | Solutions Projects And Consulting, LLC | Houston, TX 77070 | Oil Operator | Feb 2026 |
| 28173 | Somerset Energy | | Oil Operator | Feb 1986 |
| 28174 | Somerset Energy, Inc. | Louisburg, KS 66053 | Oil Operator | Sep 2025 |
| 28175 | Somerset Oil & Gas Company | Portland, TX 78374 | Oil & Gas Operator | Dec 2006 |
| 28176 | Somerset Operating, LLC | Weatherford, TX 76086 | Gas Operator | Feb 2026 |
| 28177 | Somex Energy Company | San Antonio, TX 78230 | Oil & Gas Operator | Mar 2002 |
| 28178 | Sommer Oil LLC | Richmond, KS 66080 | Oil Operator | Sep 2025 |
| 28179 | Somoco Inc | | Oil Operator | Dec 2016 |
| 28180 | Somont Oil Co., Inc. | Spring, TX 77379 | Oil & Gas Operator | Dec 2025 |
| 28181 | Son Petroleum | Bakersfield, CA 93309 | Oil & Gas Operator | Mar 1994 |
| 28182 | Son-Dad Oil & Gas | | Oil & Gas Operator | Dec 1994 |
| 28183 | Sonat Exploration Co. | Houston, TX 77251 | Oil & Gas Operator | Dec 2021 |
| 28184 | Sonat Exploration Co. - Houston | Houston, TX 77251 | Oil & Gas Operator | Dec 1999 |
| 28185 | Sonat Exploration Co. - Midland | Houston, TX 77251 | Oil & Gas Operator | Mar 1999 |
| 28186 | Sonat Exploration Company -Tyler | Houston, TX 77251 | Oil & Gas Operator | Dec 1999 |
| 28187 | Sonat Exploration Company-MCR | Houston, TX 77251 | Oil & Gas Operator | Dec 1999 |
| 28188 | Sonat Exploration Gom Inc. | Houston, TX 77251 | Oil & Gas Operator | Dec 1999 |
| 28189 | Sonata Oil & Gas Corp Inc | Stratford, OK 74812 | Oil & Gas Operator | Apr 2014 |
| 28190 | Sone Energy Corporation | Plano, TX 75023 | Oil & Gas Operator | Sep 1995 |
| 28191 | Sonerra Resources Corporation | Nacogdoches, TX 75963 | Oil & Gas Operator | Feb 2026 |
| 28192 | Song Production Company | Lindsay, OK 73052-0369 | Oil & Gas Operator | Jun 2015 |
| 28193 | Songer Harriett R | Brookville, PA 15825-5367 | Oil & Gas Operator | Dec 2010 |
| 28194 | Sonkar, Inc. | Sunburst, MT 59482 | Oil Operator | Dec 2025 |
| 28195 | Sonny King | | Oil & Gas Operator | Jan 2025 |
| 28196 | Sonny King Production | | Oil & Gas Operator | Jan 2025 |
| 28197 | Sonny'S Tank Trucks Inc | Ratliff City, OK 73481 | Oil Operator | Nov 2025 |
| 28198 | Sonoble Operating, Inc. | Dallas, TX 75240 | Oil & Gas Operator | Jun 2003 |
| 28199 | Sonoma Energy Corporation | Park City, UT 84068 | Oil & Gas Operator | Feb 2010 |
| 28200 | Sonoma Resources LLC | Andover, KS 67002 | Oil & Gas Operator | Sep 2025 |