| 16201 | Kornye-Tillman Company | Cleburne, TX 76031 | Oil & Gas Operator | May 2025 |
| 16202 | Koron Investments, Inc. | Hays, KS 67601 | Oil Operator | Jan 2025 |
| 16203 | Kosarek, Charlie | San Antonio, TX 78213 | Oil & Gas Operator | Oct 2006 |
| 16204 | Kot, Inc. | Lost Springs, KS 66859 | Oil Operator | Aug 2016 |
| 16205 | Kotlowski, Keith | Alden, NY 14004 | Oil & Gas Operator | Dec 2023 |
| 16206 | Kottwitz Oil Co., A General Partnership | | Oil Operator | Jul 2019 |
| 16207 | Kouatli, Aiman M. | Caldwell, TX 77836 | Oil & Gas Operator | May 2025 |
| 16208 | Kouplen Steve | Beggs, OK 74421 | Oil & Gas Operator | Oct 2024 |
| 16209 | Kovar Operating, LLC | Victoria, TX 77901 | Oil & Gas Operator | Sep 2021 |
| 16210 | Koven Production Co. | San Antonio, TX 78232 | Oil & Gas Operator | Aug 2003 |
| 16211 | Koyl Oil Inc | | Oil & Gas Operator | Mar 2025 |
| 16212 | Kozaczka, Loretta M. | Gowanda, NY 14070 | Gas Operator | Dec 2023 |
| 16213 | KP Exploration, Inc. | Houston, TX 77002 | Oil & Gas Operator | Apr 1997 |
| 16214 | KP Oil, LLC | | Oil Operator | Jan 2025 |
| 16215 | KPL Production Company LLC | Oklahoma City, OK 73112-4709 | Oil & Gas Operator | Feb 2017 |
| 16216 | KPR Incorporated | | Oil & Gas Operator | Nov 1988 |
| 16217 | Kracken Operating LLC | Lawrence, KS 66047 | Oil Operator | Dec 2019 |
| 16218 | Kraemer II LLC | | Oil & Gas Operator | Dec 2000 |
| 16219 | Kraft Oil Compan | | Oil Operator | Nov 1994 |
| 16220 | Kraft Oil Company LLC | Gridley, KS 66852 | Oil Operator | Jan 2025 |
| 16221 | Kraft, Jim - Oil Operations | Holyrood, KS 67450 | Oil Operator | Jan 1999 |
| 16222 | Kraft, R L | | Oil Operator | Dec 2023 |
| 16223 | Kraken Development III, LLC | | Oil & Gas Operator | Nov 2021 |
| 16224 | Kraken Operating, LLC | Houston, TX 77024 | Oil & Gas Operator | Mar 2025 |
| 16225 | Kraker & Martin Energy, L.L.C. | Tulsa, OK 74136 | Oil & Gas Operator | Apr 2011 |
| 16226 | Kraker Petroleum Corporation | Tulsa, OK 74136 | Oil & Gas Operator | Jan 1995 |
| 16227 | Krakrow, Inc. | Spencer, WV 25276-1007 | Oil & Gas Operator | Dec 2021 |
| 16228 | Kram Energy | Corpus Chrsti, TX 78404 | Oil & Gas Operator | May 2025 |
| 16229 | Kramer Exploration Co. | Delaware, OH 43015 | Oil & Gas Operator | Dec 2009 |
| 16230 | Kramer Oil Field Service Inc | Wellsville, KS 66092 | Oil Operator | May 2019 |
| 16231 | Kramer Operating, LLC | Graham, TX 76450 | Oil & Gas Operator | May 2025 |
| 16232 | Kramer, Clifford A. | Wichita Falls, TX 76301 | Oil & Gas Operator | Sep 1997 |
| 16233 | Kramer, Frank & Ethel FLP | Graham, TX 76450 | Oil & Gas Operator | Sep 2014 |
| 16234 | Kramer, Frank C. | Graham, TX 76450 | Oil & Gas Operator | Apr 2004 |
| 16235 | Kranz, Thomas | East Aurora, NY 14052 | Gas Operator | Dec 2023 |
| 16236 | Kratos Operating, LLC | Hobbs, NM 88241 | Oil & Gas Operator | Jan 2025 |
| 16237 | Kratzer Oil LLC | | Oil Operator | Jan 2025 |
| 16238 | Krause, Michael J. & Tracy A. | Orchard Park, NY 14127 | Gas Operator | Dec 2023 |
| 16239 | KRB Enterprise, Inc. | | Oil Operator | Mar 2025 |
| 16240 | KRC Operating, LLC | Corpus Chrsti, TX 78412 | Oil & Gas Operator | May 2025 |
| 16241 | Krebbs, David B | | Oil & Gas Operator | Feb 2025 |
| 16242 | Krehbiel Oil Co. | McPherson, KS 67460 | Oil & Gas Operator | Oct 1998 |
| 16243 | Krehbiel Oil Com | | Oil & Gas Operator | Mar 1995 |
| 16244 | Krehbiel, Brian | Burrton, KS 67020 | Gas Operator | Jan 2025 |
| 16245 | Krehbiel, Jay | | Oil Operator | Jan 2025 |
| 16246 | Krejci Harry L | | Oil & Gas Operator | Feb 2025 |
| 16247 | Kremco Oil LLC | Wichita Falls, TX 76308 | Oil Operator | May 2025 |
| 16248 | Kremeier Prod & Operating | | Oil & Gas Operator | Jan 2010 |
| 16249 | Krenek Enterprises, Inc. | Lovelady, TX 75851 | Oil Operator | May 2025 |
| 16250 | Krescent Energy Company, LLC | Houston, TX 77056 | Oil & Gas Operator | Apr 2013 |
| 16251 | KRF Production Company LLC | Houston, TX 77269 | Oil & Gas Operator | May 2025 |
| 16252 | Kriebel Acquisition Co LLC | Clarion, PA 16214-6161 | Oil & Gas Operator | Dec 2024 |
| 16253 | Kriebel Gas Inc | Clarion, PA 16214-0765 | Oil & Gas Operator | Dec 1999 |
| 16254 | Kriebel Minerals Inc | Clarion, PA 16214-6161 | Oil & Gas Operator | Dec 2020 |
| 16255 | Kriebel Natural Gas Co LLC | Clarion, PA 16214-6161 | Oil & Gas Operator | Dec 2024 |
| 16256 | Krier Kirby Oil | | Oil Operator | Dec 1996 |
| 16257 | Krier Oil Oper - | | Oil Operator | Sep 1995 |
| 16258 | Krier Oil Operation | | Oil Operator | Dec 2024 |
| 16259 | Krier, Kirby Oil, Inc. | Claflin, KS 67525 | Oil Operator | Jan 2025 |
| 16260 | Kriken Oil & Gas | Corpus Chrsti, TX 78426 | Oil & Gas Operator | Jul 2005 |
| 16261 | Kriken Oil & Gas, Inc. | Corpus Chrsti, TX 78426 | Oil & Gas Operator | May 2025 |
| 16262 | Kristen Oil And Gas, Inc. | Edna, TX 77957 | Oil & Gas Operator | May 2025 |
| 16263 | Kriti Exploration, Inc. | Houston, TX 77002 | Oil & Gas Operator | Oct 2012 |
| 16264 | Kriti Te Energy, Inc | Houston, TX 77079 | Oil & Gas Operator | Oct 2017 |
| 16265 | Krocan Energy Corporation | Bowling Green, KY 42102 | Oil & Gas Operator | May 2025 |
| 16266 | Krog Partners, LLC | Kilgore, TX 75663 | Oil Operator | May 2025 |
| 16267 | Krog, Peter L. & Kim R. | Orchard Park, NY 14127 | Gas Operator | Dec 2023 |
| 16268 | Kroh Operating LLC | Austin, TX 78746 | Oil & Gas Operator | May 2025 |
| 16269 | Kroll Energy LLC | New Matamoras, OH 45767 | Oil & Gas Operator | Dec 2024 |
| 16270 | Krot Oil Co. | Wichita Falls, TX 76307 | Oil & Gas Operator | May 2025 |
| 16271 | Krotje, Dorothy C. | Franklinville, NY 14737 | Gas Operator | Dec 2023 |
| 16272 | Krotzer Oil Company | Cleveland, OK 74020 | Oil & Gas Operator | Mar 2025 |
| 16273 | KRS Oil Company | Frisco, TX 75034 | Oil & Gas Operator | Apr 2020 |
| 16274 | Kruckenberg & SC | | Oil & Gas Operator | Sep 1993 |
| 16275 | Kruckenberg & Scott | Isabel, KS 67065 | Oil Operator | Dec 2011 |
| 16276 | Krueger, A. H., Jr. | Hays, KS 67601 | Oil Operator | Jul 1993 |
| 16277 | Krug, Donald H | Russell, KS 67665 | Oil Operator | Dec 2024 |
| 16278 | Krumme Oil Company LLP | Bristow, OK 74010 | Oil & Gas Operator | Feb 2025 |
| 16279 | Krumme Wesley J | Oklahoma City, OK 73120 | Oil & Gas Operator | Jun 1997 |
| 16280 | Krummrich Engineering Corporation | | Oil & Gas Operator | Feb 2025 |
| 16281 | Ksabe Energy Partners, LLC | Oklahoma City, OK 73106 | Oil Operator | May 2025 |
| 16282 | KSC Oil | | Oil Operator | Nov 2024 |
| 16283 | KSM Energy Inc | Pittsburgh, PA 15238-3156 | Gas Operator | Dec 2024 |
| 16284 | KST Oil & Gas Co Inc | Tallmadge, OH 44278-1142-1142 | Oil & Gas Operator | Dec 1995 |
| 16285 | Kstone Energy, LLC | Oklahoma City, OK 73106 | Oil Operator | May 2025 |
| 16286 | KSW Operating,LLC | | Oil & Gas Operator | Mar 2015 |
| 16287 | KT Energy Inc | Enid, OK 73702-2365 | Oil & Gas Operator | Feb 2025 |
| 16288 | KT Investments Inc | Hennessey, OK 73742 | Oil & Gas Operator | Mar 2025 |
| 16289 | KT Operating Company LLC | Dallas, TX 75231 | Oil & Gas Operator | Feb 2010 |
| 16290 | KT Resources LLC | | Oil & Gas Operator | Mar 2025 |
| 16291 | KTC Oil Enterprises, LLC | Dallas, TX 75247 | Oil & Gas Operator | May 2025 |
| 16292 | KTM Operating LLC | | Oil & Gas Operator | Mar 2025 |
| 16293 | KTP Energy, Inc. | Denver, CO 80226 | Oil & Gas Operator | Aug 2019 |
| 16294 | Kudella, Ron & Cline, Russell | | Oil & Gas Operator | Feb 2021 |
| 16295 | Kuehne Oil Company | Dallas, TX 75201 | Oil & Gas Operator | Aug 2003 |
| 16296 | Kuenzler & Flora Reserve Company | | Oil Operator | Mar 2025 |
| 16297 | Kughn | | Oil Operator | Sep 2019 |
| 16298 | Kugler* Dean & Joe Dba D-J Oil Company | | Oil & Gas Operator | Sep 2019 |
| 16299 | Kuhn Oil Co Inc | Timber Lake, SD 57656 | Oil Operator | Dec 2024 |
| 16300 | Kuhn Richard F | Baltimore, OH 43105 | Oil Operator | Dec 2022 |