| 27101 | Slingshot Oil & Gas | Houston, TX 77019 | Oil Operator | Jun 2025 |
| 27102 | Slinkard, Roberta S | | Oil Operator | Mar 2025 |
| 27103 | Sliverville Oil Co LLC | Bradford, PA 16701-2770 | Oil & Gas Operator | Dec 2024 |
| 27104 | SLMW Energy Comp | | Oil Operator | Jan 1989 |
| 27105 | Slo Oil, LLC | El Dorado, KS 67042 | Oil Operator | Nov 2024 |
| 27106 | Sloan Oil Corporation | Humble, TX 77347 | Oil & Gas Operator | Mar 2015 |
| 27107 | Sloan Operations | | Oil Operator | Oct 2024 |
| 27108 | Sloan Petroleum Inc. | Midland, TX 79710 | Oil & Gas Operator | Jun 2025 |
| 27109 | Sloan Petroleum Service Inc | Guthrie, OK 73044 | Oil & Gas Operator | Apr 2025 |
| 27110 | Sloan Production Co | | Oil Operator | Jan 2013 |
| 27111 | Slohcin, Inc. | Shelby, MT 59474 | Oil Operator | Apr 2025 |
| 27112 | Slone Energy, LLC | Oil Springs, KY 41238 | Oil & Gas Operator | Dec 2023 |
| 27113 | Slone, VIctor R | | Oil Operator | Apr 2024 |
| 27114 | Slow Poke Production-George L. Dobson Dba | Cut Bank, MT 59427 | Gas Operator | Mar 2025 |
| 27115 | Slow Stroke Productions LLC | | Oil Operator | Apr 2025 |
| 27116 | SLS Operating LLC | Seminole, OK 74868-5876 | Oil & Gas Operator | Mar 2025 |
| 27117 | SLT Dakota Operating, Inc. | Yukon, OK 73099 | Oil & Gas Operator | Jun 2025 |
| 27118 | SLT Production LLC | Sheffield, PA 16347-0547 | Oil & Gas Operator | Dec 2024 |
| 27119 | SM Energy | Denver, CO 80203-4361 | Gas Operator | Feb 2015 |
| 27120 | SM Energy Company | Midland, TX 79707 | Oil & Gas Operator | Jun 2025 |
| 27121 | SM Oil & Gas Inc | Skiatook, OK 74070 | Oil & Gas Operator | Mar 2025 |
| 27122 | SM Operating Company LLC | Houston, TX 77056 | Oil & Gas Operator | Jun 2025 |
| 27123 | SM&O LLC | | Oil & Gas Operator | Mar 2025 |
| 27124 | Smackco, LTD. | | Oil & Gas Operator | Oct 2002 |
| 27125 | Smackover Drilling Company Inc | Shreveport, LA 71104 | Oil & Gas Operator | Nov 2024 |
| 27126 | Smackover Producing Co | | Oil & Gas Operator | Sep 2024 |
| 27127 | Smackover Shell LTD. Partnership | Houston, TX 77001 | Gas Operator | Apr 2000 |
| 27128 | Smail Denny Lee | Harvey, LA 70058 | Oil & Gas Operator | Dec 2024 |
| 27129 | Smail, James R. | Big Prairie, OH 44611 | Oil & Gas Operator | Dec 1998 |
| 27130 | Smal Energy Corp | Tyler, TX 75710 | Oil & Gas Operator | Oct 1995 |
| 27131 | Small, Louis E. | Orchard Park, NY 14127 | Gas Operator | Dec 2023 |
| 27132 | Small, R.P. Corp. | Tulsa, OK 74103 | Oil & Gas Operator | Jun 2025 |
| 27133 | Smalley, Bill | Albany, TX 76430 | Oil & Gas Operator | Jul 2001 |
| 27134 | Smart Jr T J | Ryan, OK 73565 | Oil Operator | Sep 1994 |
| 27135 | Smart Service & Equipment LLC | Muskogee, OK 74401-5262 | Oil Operator | Aug 2013 |
| 27136 | SMC Oil & Gas, Inc. | Midland, TX 79710 | Oil & Gas Operator | Jun 2025 |
| 27137 | Sme Well SVC Inc | Herman, PA 16039-0156 | Oil & Gas Operator | Dec 2024 |
| 27138 | Smiley Drilling Co | Oklahoma City, OK 73156-0773 | Oil & Gas Operator | Apr 1999 |
| 27139 | Smith & Marrs Inc. | Lubbock, TX 79424 | Oil & Gas Operator | Apr 2021 |
| 27140 | Smith & Smith Petroleum Corp | | Oil & Gas Operator | Jan 2025 |
| 27141 | Smith & Spragins | Wichita Falls, TX 76301 | Oil & Gas Operator | Jul 1995 |
| 27142 | Smith Al | Duncan, OK 73534-0037 | Oil Operator | Dec 1998 |
| 27143 | Smith Alfred Dba A-S Oil | Walters, OK 73572 | Oil Operator | Feb 2025 |
| 27144 | Smith Bart Oil & Gas Expl Inc | Council Hill, OK 74428-9603 | Oil & Gas Operator | Apr 2015 |
| 27145 | Smith Bob W | Ardmore, OK 73403-5214 | Oil & Gas Operator | Sep 2014 |
| 27146 | Smith Bradley D & Paul C | Pawhuska, OK 74056 | Oil Operator | Dec 2024 |
| 27147 | Smith Brothers Enterprises | Ardmore, OK 73402 | Oil Operator | Jul 1998 |
| 27148 | Smith Brothers Oil & Gas, Inc. | Midland, TX 79702 | Oil & Gas Operator | Jun 2025 |
| 27149 | Smith C W & Associates Inc | Oklahoma City, OK 73178-0105 | Oil & Gas Operator | Aug 2013 |
| 27150 | Smith C/Dba Sandy Supply | North FT Myers, FL 33903 | Oil & Gas Operator | Dec 1988 |
| 27151 | Smith Cheryl A | Copan, OK 74022 | Oil Operator | Jul 2024 |
| 27152 | Smith Claude W | Henryetta, OK 74437-7553 | Oil Operator | May 2008 |
| 27153 | Smith Conley P Operating Co | Eglewood, CO 80112-3640 | Oil & Gas Operator | Jun 2000 |
| 27154 | Smith Connie M & Sheryle | Chelsea, OK 74016-1959 | Oil Operator | Feb 2017 |
| 27155 | Smith Doug | Tulsa, OK 74107 | Oil & Gas Operator | Feb 2016 |
| 27156 | Smith Edward F | Avant, OK 74001-0024 | Oil & Gas Operator | Nov 2014 |
| 27157 | Smith Energy 1986a Partnership | Alvin, TX 77511 | Oil & Gas Operator | Feb 2010 |
| 27158 | Smith Energy Company LLC | Purcell, OK 73080-4772 | Oil & Gas Operator | May 2015 |
| 27159 | Smith Energy Corp | | Oil & Gas Operator | Jan 2024 |
| 27160 | Smith Energy Limited Partnership 1988 | | Oil & Gas Operator | May 2012 |
| 27161 | Smith Energy LLC | | Oil & Gas Operator | Apr 2025 |
| 27162 | Smith Energy Operating Company | Lubbock, TX 79423 | Oil & Gas Operator | Jun 2025 |
| 27163 | Smith Family LTD Partnership | Wichita Falls, TX 76308 | Oil & Gas Operator | Feb 2004 |
| 27164 | Smith Harmon K | Wewoka, OK 74884 | Oil & Gas Operator | Jan 2013 |
| 27165 | Smith J S Production | Seminole, OK 74868 | Oil & Gas Operator | Mar 2025 |
| 27166 | Smith Jack Boyd | Elkhart, IN 46515-1968 | Oil & Gas Operator | Oct 2011 |
| 27167 | Smith Joyce | Okmulgee, OK 74447-6074 | Oil Operator | Mar 2025 |
| 27168 | Smith Kevin | Thermopolis, WY 82443 | Oil Operator | Sep 2024 |
| 27169 | Smith Land Surveying, Inc. Dba SLS Land & Energy Development | | Gas Operator | Dec 2021 |
| 27170 | Smith Management Inc | Wooster, OH 44691 | Oil & Gas Operator | Dec 1992 |
| 27171 | Smith Manus L MFG Inc | Oklahoma City, OK 73147 | Oil & Gas Operator | Nov 1998 |
| 27172 | Smith Max Dean | Wewoka, OK 74884 | Oil & Gas Operator | Dec 2024 |
| 27173 | Smith Mike D | Stillwater, OK 74074 | Oil & Gas Operator | Apr 2015 |
| 27174 | Smith Oil & Gas Co., Inc. | Wichita Falls, TX 76310 | Oil Operator | Dec 2010 |
| 27175 | Smith Oil & Gas LLC | Livermore, CO 80536 | Gas Operator | Feb 2025 |
| 27176 | Smith Oil Compan | | Oil Operator | Sep 1994 |
| 27177 | Smith Oil Company | Smackover, AR 71762 | Oil Operator | Dec 2024 |
| 27178 | Smith Oil Operations | | Oil & Gas Operator | Feb 2025 |
| 27179 | Smith Oil Properties Inc | | Oil & Gas Operator | Nov 2022 |
| 27180 | Smith Operating & Management Co. | Shreveport, LA 71161 | Oil & Gas Operator | Feb 2005 |
| 27181 | Smith Operating And MGMT Co. | Shreveport, LA 71161 | Oil & Gas Operator | Jun 2023 |
| 27182 | Smith Operating-Germany Oil | | Oil & Gas Operator | Dec 1995 |
| 27183 | Smith Patrica\Judith Miller | Collinsville, OK 74021-6307 | Oil Operator | Jun 2010 |
| 27184 | Smith Petroleum Company | Spring, TX 77389 | Oil & Gas Operator | Jun 2025 |
| 27185 | Smith Petroleum LLC | Barnsdall, OK 74002-0134 | Oil Operator | Mar 2025 |
| 27186 | Smith Pipe Of Abilene | Abilene, TX 79608 | Oil & Gas Operator | Jun 2025 |
| 27187 | Smith Production Co. | Wichita Falls, TX 76308 | Oil & Gas Operator | Jun 2025 |
| 27188 | Smith Production Inc. | The Woodlands, TX 77381 | Oil & Gas Operator | Jun 2025 |
| 27189 | Smith Ranch Company | Sharon Springs, KS 67758 | Gas Operator | May 2002 |
| 27190 | Smith Red Plains Production | | Oil & Gas Operator | Dec 2024 |
| 27191 | Smith Red Plains Production LLC | | Oil & Gas Operator | Apr 2025 |
| 27192 | Smith Resources, Inc. | Marshall, TX 75671 | Oil & Gas Operator | Jun 2025 |
| 27193 | Smith Resources, L.L.C. | Marshall, TX 75671 | Oil & Gas Operator | Jun 2025 |
| 27194 | Smith Richard F | | Oil Operator | Jun 1995 |
| 27195 | Smith Richard L | Catoosa, OK 74015 | Oil & Gas Operator | Dec 2019 |
| 27196 | Smith Ronald Dba Chipco | Zanesville, OH 43701 | Oil & Gas Operator | Dec 2024 |
| 27197 | Smith Shirley C | Claremore, OK 74017-0060 | Oil & Gas Operator | Mar 2015 |
| 27198 | Smith T W | Jeromesville, OH 44840 | Oil Operator | Dec 2016 |
| 27199 | Smith Terry | Wewoka, OK 74884 | Oil & Gas Operator | Mar 2015 |
| 27200 | Smith Todd W Oil | | Oil Operator | Jan 1994 |