| 16101 | Koron Investments, Inc. | Hays, KS 67601 | Oil Operator | Apr 2025 |
| 16102 | Kosarek, Charlie | San Antonio, TX 78213 | Oil & Gas Operator | Oct 2006 |
| 16103 | Kot, Inc. | Lost Springs, KS 66859 | Oil Operator | Aug 2016 |
| 16104 | Kotlowski, Keith | Alden, NY 14004 | Oil & Gas Operator | Dec 2024 |
| 16105 | Kottwitz Oil Co., A General Partnership | | Oil Operator | Jul 2019 |
| 16106 | Kouatli, Aiman M. | Caldwell, TX 77836 | Oil & Gas Operator | Sep 2025 |
| 16107 | Kouplen Steve | Beggs, OK 74421 | Oil & Gas Operator | Oct 2024 |
| 16108 | Kovar Operating, LLC | Victoria, TX 77901 | Oil & Gas Operator | Sep 2021 |
| 16109 | Koven Production Co. | San Antonio, TX 78232 | Oil & Gas Operator | Aug 2003 |
| 16110 | Koyl Oil Inc | | Oil & Gas Operator | Jun 2025 |
| 16111 | Kozaczka, Loretta M. | Gowanda, NY 14070 | Gas Operator | Dec 2024 |
| 16112 | KP Exploration, Inc. | Houston, TX 77002 | Oil & Gas Operator | Apr 1997 |
| 16113 | KP Oil, LLC | | Oil Operator | Apr 2025 |
| 16114 | KPL Production Company LLC | Oklahoma City, OK 73112-4709 | Oil & Gas Operator | Feb 2017 |
| 16115 | Kracken Operating LLC | Lawrence, KS 66047 | Oil Operator | Dec 2019 |
| 16116 | Kraemer II LLC | | Oil & Gas Operator | Dec 2000 |
| 16117 | Kraft Oil Compan | | Oil Operator | Nov 1994 |
| 16118 | Kraft Oil Company LLC | Gridley, KS 66852 | Oil Operator | Apr 2025 |
| 16119 | Kraft, Jim - Oil Operations | Holyrood, KS 67450 | Oil Operator | Jan 1999 |
| 16120 | Kraft, R L | | Oil Operator | Dec 2023 |
| 16121 | Kraken Development III, LLC | | Oil & Gas Operator | Nov 2021 |
| 16122 | Kraken Operating, LLC | Houston, TX 77024 | Oil & Gas Operator | Jul 2025 |
| 16123 | Kraker & Martin Energy, L.L.C. | Tulsa, OK 74136 | Oil & Gas Operator | Apr 2011 |
| 16124 | Kraker Petroleum Corporation | Tulsa, OK 74136 | Oil & Gas Operator | Jan 1995 |
| 16125 | Krakrow, Inc. | Spencer, WV 25276-1007 | Oil & Gas Operator | Dec 2021 |
| 16126 | Kram Energy | Corpus Chrsti, TX 78404 | Oil & Gas Operator | Sep 2025 |
| 16127 | Kramer Exploration Co. | Delaware, OH 43015 | Oil & Gas Operator | Dec 2009 |
| 16128 | Kramer Oil Field Service Inc | Wellsville, KS 66092 | Oil Operator | May 2019 |
| 16129 | Kramer Operating, LLC | Graham, TX 76450 | Oil & Gas Operator | Sep 2025 |
| 16130 | Kramer, Clifford A. | Wichita Falls, TX 76301 | Oil & Gas Operator | Sep 1997 |
| 16131 | Kramer, Frank & Ethel FLP | Graham, TX 76450 | Oil & Gas Operator | Sep 2014 |
| 16132 | Kramer, Frank C. | Graham, TX 76450 | Oil & Gas Operator | Apr 2004 |
| 16133 | Kranz, Thomas | East Aurora, NY 14052 | Gas Operator | Dec 2024 |
| 16134 | Kratos Operating, LLC | Hobbs, NM 88241 | Oil & Gas Operator | May 2025 |
| 16135 | Kratzer Oil LLC | | Oil Operator | Apr 2025 |
| 16136 | Krause, Michael J. & Tracy A. | Orchard Park, NY 14127 | Gas Operator | Dec 2024 |
| 16137 | KRB Enterprise, Inc. | | Oil Operator | Jul 2025 |
| 16138 | KRC Operating, LLC | Corpus Chrsti, TX 78412 | Oil & Gas Operator | Sep 2025 |
| 16139 | Krebbs, David B | | Oil & Gas Operator | May 2025 |
| 16140 | Krehbiel Oil Co. | McPherson, KS 67460 | Oil & Gas Operator | Oct 1998 |
| 16141 | Krehbiel Oil Com | | Oil & Gas Operator | Mar 1995 |
| 16142 | Krehbiel, Brian | Burrton, KS 67020 | Gas Operator | Mar 2025 |
| 16143 | Krehbiel, Jay | | Oil Operator | Apr 2025 |
| 16144 | Krejci Harry L | | Oil & Gas Operator | Jun 2025 |
| 16145 | Kremco Oil LLC | Wichita Falls, TX 76308 | Oil Operator | Sep 2025 |
| 16146 | Kremeier Prod & Operating | | Oil & Gas Operator | Jan 2010 |
| 16147 | Krenek Enterprises, Inc. | Lovelady, TX 75851 | Oil Operator | Sep 2025 |
| 16148 | Krescent Energy Company, LLC | Houston, TX 77056 | Oil & Gas Operator | Apr 2013 |
| 16149 | KRF Production Company LLC | Houston, TX 77269 | Oil & Gas Operator | Sep 2025 |
| 16150 | Kriebel Acquisition Co LLC | Clarion, PA 16214-6161 | Oil & Gas Operator | Dec 2024 |
| 16151 | Kriebel Gas Inc | Clarion, PA 16214-0765 | Oil & Gas Operator | Dec 1999 |
| 16152 | Kriebel Minerals Inc | Clarion, PA 16214-6161 | Oil & Gas Operator | Dec 2020 |
| 16153 | Kriebel Natural Gas Co LLC | Clarion, PA 16214-6161 | Oil & Gas Operator | Dec 2024 |
| 16154 | Krier Kirby Oil | | Oil Operator | Dec 1996 |
| 16155 | Krier Oil Oper - | | Oil Operator | Sep 1995 |
| 16156 | Krier Oil Operation | | Oil Operator | Apr 2025 |
| 16157 | Krier, Kirby Oil, Inc. | Claflin, KS 67525 | Oil Operator | Apr 2025 |
| 16158 | Kriken Oil & Gas | Corpus Chrsti, TX 78426 | Oil & Gas Operator | Jul 2005 |
| 16159 | Kriken Oil & Gas, Inc. | Corpus Chrsti, TX 78426 | Oil & Gas Operator | Sep 2025 |
| 16160 | Krisco Oil Co. | Kermit, TX 79745 | Oil Operator | Jul 2022 |
| 16161 | Kristen Oil And Gas, Inc. | Edna, TX 77957 | Oil & Gas Operator | Sep 2025 |
| 16162 | Kriti Exploration, Inc. | Houston, TX 77002 | Oil & Gas Operator | Oct 2012 |
| 16163 | Kriti Te Energy, Inc | Houston, TX 77079 | Oil & Gas Operator | Oct 2017 |
| 16164 | Krocan Energy Corporation | Bowling Green, KY 42102 | Oil & Gas Operator | Sep 2025 |
| 16165 | Krog Partners, LLC | Kilgore, TX 75663 | Oil Operator | Sep 2025 |
| 16166 | Krog, Peter L. & Kim R. | Orchard Park, NY 14127 | Gas Operator | Dec 2024 |
| 16167 | Kroh Operating LLC | Austin, TX 78746 | Oil & Gas Operator | Sep 2025 |
| 16168 | Kroll Energy LLC | New Matamoras, OH 45767 | Oil & Gas Operator | Dec 2024 |
| 16169 | Krot Oil Co. | Wichita Falls, TX 76307 | Oil & Gas Operator | Sep 2025 |
| 16170 | Krotje, Dorothy C. | Franklinville, NY 14737 | Gas Operator | Dec 2024 |
| 16171 | Krotzer Oil Company | Cleveland, OK 74020 | Oil & Gas Operator | Jun 2025 |
| 16172 | KRS Oil Company | Frisco, TX 75034 | Oil & Gas Operator | Apr 2020 |
| 16173 | Kruckenberg & SC | | Oil & Gas Operator | Sep 1993 |
| 16174 | Kruckenberg & Scott | Isabel, KS 67065 | Oil Operator | Dec 2011 |
| 16175 | Krueger, A. H., Jr. | Hays, KS 67601 | Oil Operator | Jul 1993 |
| 16176 | Krug, Donald H | Russell, KS 67665 | Oil Operator | Apr 2025 |
| 16177 | Krumme Oil Company LLP | Bristow, OK 74010 | Oil & Gas Operator | Jun 2025 |
| 16178 | Krumme Wesley J | Oklahoma City, OK 73120 | Oil & Gas Operator | Jun 1997 |
| 16179 | Krummrich Engineering Corporation | | Oil & Gas Operator | Jul 2025 |
| 16180 | Ksabe Energy Partners, LLC | Oklahoma City, OK 73106 | Oil Operator | Sep 2025 |
| 16181 | KSC Oil | | Oil Operator | Feb 2025 |
| 16182 | KSM Energy Inc | Pittsburgh, PA 15238-3156 | Gas Operator | Dec 2024 |
| 16183 | KST Oil & Gas Co Inc | Tallmadge, OH 44278-1142 | Oil & Gas Operator | Dec 1995 |
| 16184 | Kstone Energy, LLC | Oklahoma City, OK 73106 | Oil Operator | Sep 2025 |
| 16185 | KSW Operating,LLC | | Oil & Gas Operator | Mar 2015 |
| 16186 | KT Energy Inc | Enid, OK 73702-2365 | Oil & Gas Operator | May 2025 |
| 16187 | KT Investments Inc | Hennessey, OK 73742 | Oil & Gas Operator | Jun 2025 |
| 16188 | KT Operating Company LLC | Dallas, TX 75231 | Oil & Gas Operator | Feb 2010 |
| 16189 | KT Resources LLC | | Oil & Gas Operator | Jul 2025 |
| 16190 | KTC Oil Enterprises, LLC | Dallas, TX 75247 | Oil & Gas Operator | Sep 2025 |
| 16191 | KTM Operating LLC | | Oil & Gas Operator | May 2025 |
| 16192 | KTP Energy, Inc. | Denver, CO 80226 | Oil & Gas Operator | Aug 2019 |
| 16193 | Kudella, Ron & Cline, Russell | | Oil & Gas Operator | Feb 2021 |
| 16194 | Kuehne Oil Company | Dallas, TX 75201 | Oil & Gas Operator | Aug 2003 |
| 16195 | Kuenzler & Flora Reserve Company | | Oil Operator | Aug 2025 |
| 16196 | Kughn | | Oil Operator | Sep 2019 |
| 16197 | Kugler* Dean & Joe Dba D-J Oil Company | | Oil & Gas Operator | Sep 2019 |
| 16198 | Kuhn Oil Co Inc | Timber Lake, SD 57656 | Oil Operator | Dec 2024 |
| 16199 | Kuhn Richard F | Baltimore, OH 43105 | Oil Operator | Dec 2022 |
| 16200 | Kuhn Walter Dril | | Gas Operator | Dec 1985 |