| 28201 | Strickler Emory | New Concord, OH 43762 | Oil & Gas Operator | Dec 2013 |
| 28202 | Stride Energy LLC | Piedmont, OK 73078 | Oil & Gas Operator | Apr 2025 |
| 28203 | Stright Roger | Amesville, OH 45711 | Oil & Gas Operator | Dec 2016 |
| 28204 | Strike Axe Oil And Gas Corporation | | Oil & Gas Operator | Mar 2021 |
| 28205 | Strike Energy Corp | Blackwell, OK 74631 | Oil & Gas Operator | Jul 2023 |
| 28206 | Strike Energy LLC | Burneyville, OK 73430 | Oil Operator | Mar 2025 |
| 28207 | Strike Too Oil | Albany, TX 76430 | Oil Operator | Jun 2025 |
| 28208 | Striker Management Co LLC | Shawnee, OK 74801 | Oil & Gas Operator | Mar 2025 |
| 28209 | Striker Petroleum Corporation | Englewood, CO 80111 | Oil & Gas Operator | Dec 1999 |
| 28210 | Striker Petroleum Operations LLC | Frisco, TX 75034-2127 | Oil & Gas Operator | Nov 2014 |
| 28211 | Striker Robert E | Rogers, OH 44455 | Oil & Gas Operator | Dec 2024 |
| 28212 | Stringer E M | | Oil Operator | May 1996 |
| 28213 | Stringer Oil & Gas Co., Inc. | San Angelo, TX 76902 | Oil & Gas Operator | Oct 1996 |
| 28214 | Striper Oil, Inc. | Dallas, TX 75379 | Oil & Gas Operator | Apr 2002 |
| 28215 | Stripper Oil Com | | Oil Operator | Nov 1996 |
| 28216 | Stripper Oil Company Inc | | Oil Operator | Feb 2025 |
| 28217 | Stroke Of Luck Energy & Exploration LLC | Cassoday, KS 66842 | Oil Operator | Sep 2021 |
| 28218 | Stromquist C Dal | | Oil & Gas Operator | Aug 1991 |
| 28219 | Stromquist C Dale | Liberal, KS 67901-2428 | Oil & Gas Operator | Jun 2006 |
| 28220 | Stromquist, C. Dale, A General Partnership | Liberal, KS 67901 | Oil & Gas Operator | Aug 2010 |
| 28221 | Strong Rock Operating Company, LLC | | Oil & Gas Operator | Mar 2025 |
| 28222 | Stronghold Energy II Oper, LLC | Midland, TX 79702 | Oil & Gas Operator | Aug 2022 |
| 28223 | Stroube Energy Corporation | Dallas, TX 75248 | Oil & Gas Operator | Jan 2012 |
| 28224 | Stroube Family Partnership #2 | Corsicana, TX 75151 | Oil Operator | Jun 2025 |
| 28225 | Stroud Energy, LTD. | Fort Worth, TX 76102 | Oil & Gas Operator | Jun 2006 |
| 28226 | Stroud Oil Properties, Inc. | Fort Worth, TX 76102 | Oil & Gas Operator | May 2013 |
| 28227 | Stroud Operating LLC | | Oil & Gas Operator | Dec 2012 |
| 28228 | Stroud Petroleum Company | Oklahoma City, OK 73156-0156 | Oil Operator | Jun 2014 |
| 28229 | Stroud Petroleum, Inc. | Shreveport, LA 71162 | Oil & Gas Operator | Jun 2025 |
| 28230 | Stroud Production LLC | Shreveport, LA 71101 | Oil & Gas Operator | Dec 2024 |
| 28231 | Struck Rock Oil And Gas LLC | Geary, OK 73040 | Oil & Gas Operator | Mar 2025 |
| 28232 | Struthers Oil & Gas Corp | Tulsa, OK 74133 | Oil & Gas Operator | Jan 2013 |
| 28233 | Struthoff Energy, L.L.C. | San Antonio, TX 78216 | Oil Operator | Jun 2025 |
| 28234 | Stryker Energy Corp. | Mesquite, TX 75180 | Oil & Gas Operator | Jun 2025 |
| 28235 | Stryker Energy LLC | Mayfield VIllag, OH 44143 | Oil & Gas Operator | Dec 2018 |
| 28236 | STS Petroleum LLC | Houston, TX 77289 | Oil & Gas Operator | Jun 2025 |
| 28237 | Stuart & Barrett | San Angelo, TX 76904 | Gas Operator | Jan 2008 |
| 28238 | Stuart Oil | | Oil Operator | Jan 2025 |
| 28239 | Stuart Oil & Gas | Longview, TX 75606 | Oil & Gas Operator | Jun 2025 |
| 28240 | Stuart Operating, LLC | Ozona, TX 76943 | Oil & Gas Operator | Jun 2025 |
| 28241 | Stubblefield Energy Company | Abilene, TX 79604 | Oil & Gas Operator | Jun 2025 |
| 28242 | Stubbs & Fleming, A General Partnership | Wichita, KS 67202 | Oil Operator | Jul 2005 |
| 28243 | Stubbs Operating Co. | Archer City, TX 76351 | Oil & Gas Operator | Aug 1998 |
| 28244 | Stubbs, J. W. | Suwanee, GA 30024 | Oil & Gas Operator | Mar 2008 |
| 28245 | Stuber, VIrgil | Eureka, KS 67045 | Oil Operator | Dec 2019 |
| 28246 | Stucky Oil Compa | | Oil Operator | Mar 1988 |
| 28247 | Stucky Oil Company | Sedgwick, KS 67135 | Gas Operator | Aug 1999 |
| 28248 | Stucky, Edward P. | Sabetha, KS 66534 | Oil Operator | May 1992 |
| 28249 | Stucky, Kenneth R. Oil & Gas Operations | Burrton, KS 67020 | Oil & Gas Operator | Aug 2002 |
| 28250 | Studer Oil Co. | Pratt, KS 67124 | Oil Operator | Oct 2019 |
| 28251 | Studer Oil Compa | | Oil & Gas Operator | Feb 1993 |
| 28252 | Studley Resources Corporation | Humble, TX 77347 | Oil & Gas Operator | Dec 1996 |
| 28253 | Studley, Richard | Gowanda, NY 14070 | Gas Operator | Dec 2023 |
| 28254 | Studley, Robert SR. & Robert Jr. | Gowanda, NY 14070 | Gas Operator | Dec 2023 |
| 28255 | Stull Crude Co, LLC | | Oil Operator | Feb 2025 |
| 28256 | Stull Oil LLC | Natoma, KS 67651 | Oil Operator | Feb 2025 |
| 28257 | Stults, Joe K. | Archer City, TX 76351 | Oil & Gas Operator | Mar 2007 |
| 28258 | Stumpff Paul | Bartlesville, OK 74006-3426 | Oil & Gas Operator | Mar 2015 |
| 28259 | Sturgeon Point Development Co | | Gas Operator | Jun 2019 |
| 28260 | Sturman Jay R | Mounds, OK 74047 | Oil & Gas Operator | Apr 2024 |
| 28261 | Stuteville Oil Co. | Olney, TX 76374 | Oil & Gas Operator | Aug 2004 |
| 28262 | Stuteville, Jack | Olney, TX 76374 | Oil Operator | Jun 2025 |
| 28263 | Stydahar Oil & Gas Co. | | Oil & Gas Operator | Dec 2021 |
| 28264 | STZ Petroleum Inc. | Houston, TX 77268 | Oil & Gas Operator | Dec 1997 |
| 28265 | Sub Surface Operations | Brownwood, TX 76804 | Oil & Gas Operator | Jun 2025 |
| 28266 | Sublette Feeders LLC | Sublette, KS 67877 | Gas Operator | Feb 2025 |
| 28267 | Suborp Energy, Inc. | Dallas, TX 75204 | Oil & Gas Operator | Sep 2000 |
| 28268 | Subsea Operating Co. | Albany, TX 76430 | Oil & Gas Operator | Jun 2025 |
| 28269 | Subsurface Energy Corp. | Coleman, TX 76834 | Oil & Gas Operator | Jun 2025 |
| 28270 | Subsurface Energy, Inc. | | Oil & Gas Operator | Oct 2015 |
| 28271 | Subsurface Exploration | Coleman, TX 76834 | Oil & Gas Operator | Apr 2006 |
| 28272 | Subsurface Minerals Group LLC | Tulsa, OK 74119-1635 | Oil & Gas Operator | Jan 2013 |
| 28273 | Subsurface Production, Inc. | Coleman, TX 76834 | Oil & Gas Operator | Jun 2025 |
| 28274 | Subsurface Resources Inc | Logan, UT 84321 | Oil & Gas Operator | Aug 1990 |
| 28275 | Subterranean Energy, LLC | Tyler, TX 75705 | Oil & Gas Operator | Jun 2025 |
| 28276 | Suburban Propane Expl Co, Inc. | | Oil & Gas Operator | Jun 1983 |
| 28277 | Suburban Propane Gas Corp. | | Oil & Gas Operator | Sep 1980 |
| 28278 | Success Oil Company, Inc. | Beverly Hills, CA 90211 | Oil & Gas Operator | Jun 2025 |
| 28279 | Sudberry Mark E Dba Gushing Oil Co | Trophy Club, TX 76262-5531 | Oil Operator | Jan 2020 |
| 28280 | Sue-Ann Operating, L.C. | Victoria, TX 77903 | Oil & Gas Operator | Jun 2025 |
| 28281 | Sue-Ann Production Company | Victoria, TX 77903 | Oil & Gas Operator | Mar 2008 |
| 28282 | Suemaur Expl. & Prod., LLC | Corpus Chrsti, TX 78401 | Oil & Gas Operator | Jun 2024 |
| 28283 | Suemaur Exploration, Inc. | Corpus Chrsti, TX 78470 | Oil & Gas Operator | Mar 2008 |
| 28284 | Suemaur Operating LLC | Corpus Chrsti, TX 78401 | Oil & Gas Operator | Jun 2025 |
| 28285 | Suerte Oil & Gas LLC | Caney, KS 67333 | Oil Operator | Dec 2024 |
| 28286 | Suerte Oil Compa | | Oil & Gas Operator | Oct 1995 |
| 28287 | Suerte Oil Company | Howard, KS 67349 | Oil & Gas Operator | Jan 2017 |
| 28288 | Sugar Bowl Gas Corp. | | Oil Operator | Dec 1983 |
| 28289 | Sugar Bowl Industrial Gas Corp | | Oil Operator | Dec 1983 |
| 28290 | Sugar Creek Environmental, LLC | | Oil Operator | Jan 2025 |
| 28291 | Sugar Creek Producing Company | | Oil & Gas Operator | Dec 2010 |
| 28292 | Sugar Creek Producing Company, LLC | | Oil & Gas Operator | Jan 2025 |
| 28293 | Sugar Enterprises, LLC | Tyler, TX 75713 | Oil & Gas Operator | Jun 2025 |
| 28294 | Sugar Oil Company | | Oil & Gas Operator | Feb 2011 |
| 28295 | Sugar Rock Incorporated | | Oil & Gas Operator | Dec 2021 |
| 28296 | Suits & Jeans, LLC | Pampa, TX 79066 | Oil & Gas Operator | Jun 2025 |
| 28297 | Sujen Enterprise | | Oil Operator | Sep 1989 |
| 28298 | Sukay Oil & Gas, Inc. | Pampa, TX 79066 | Oil & Gas Operator | Aug 2003 |
| 28299 | Sullivan & Clark | Youngsville, PA 16371-0194 | Oil & Gas Operator | Dec 1998 |
| 28300 | Sullivan & Co. | Tulsa, OK 74114 | Oil & Gas Operator | May 2022 |