| 201 | Koehn, Alfred D.(Deceased) | Galva, KS 67443 | Oil Operator | Mar 1998 |
| 202 | Koehn, Carolyn | Galva, KS 67443 | Oil Operator | Sep 2025 |
| 203 | Koehn, John W. | Sublette, KS 67877 | Gas Operator | May 2018 |
| 204 | Koehn, Max R. | Copeland, KS 67837 | Oil & Gas Operator | Oct 2019 |
| 205 | Koehn, Radell W. And Austin Koehn & Morgan Koehn | Galva, KS 67443 | Oil Operator | Sep 2025 |
| 206 | Koehn, Roger D. | Galva, KS 67443 | Oil Operator | Apr 1998 |
| 207 | Kop-Mor Producti | | Oil Operator | Sep 1992 |
| 208 | Kopco Inc | Caney, KS 67333 | Oil & Gas Operator | Oct 2025 |
| 209 | Koron Investments, Inc. | Hays, KS 67601 | Oil Operator | Sep 2025 |
| 210 | Kot, Inc. | Lost Springs, KS 66859 | Oil Operator | Aug 2016 |
| 211 | Kottwitz Oil Co., A General Partnership | | Oil Operator | Jul 2019 |
| 212 | KP Oil, LLC | | Oil & Gas Operator | Sep 2025 |
| 213 | KPR Incorporated | | Oil & Gas Operator | Nov 1988 |
| 214 | Kracken Operating LLC | Lawrence, KS 66047 | Oil Operator | Dec 2019 |
| 215 | Kraft Oil Compan | | Oil Operator | Nov 1994 |
| 216 | Kraft Oil Company LLC | Gridley, KS 66852 | Oil Operator | Sep 2025 |
| 217 | Kraft, Jim - Oil Operations | Holyrood, KS 67450 | Oil Operator | Jan 1999 |
| 218 | Kramer Oil Field Service Inc | Wellsville, KS 66092 | Oil Operator | May 2019 |
| 219 | Kratzer Oil LLC | | Oil Operator | Sep 2025 |
| 220 | Krehbiel Oil Co. | McPherson, KS 67460 | Oil & Gas Operator | Oct 1998 |
| 221 | Krehbiel Oil Com | | Oil & Gas Operator | Mar 1995 |
| 222 | Krehbiel, Brian | Burrton, KS 67020 | Gas Operator | Mar 2025 |
| 223 | Krehbiel, Jay | | Oil Operator | Sep 2025 |
| 224 | Kremeier Prod & Operating | | Oil & Gas Operator | Jan 2010 |
| 225 | Krier Kirby Oil | | Oil Operator | Dec 1996 |
| 226 | Krier Oil Oper - | | Oil Operator | Sep 1995 |
| 227 | Krier Oil Operation | | Oil Operator | Sep 2025 |
| 228 | Krier, Kirby Oil, Inc. | Claflin, KS 67525 | Oil Operator | Sep 2025 |
| 229 | Kruckenberg & SC | | Oil & Gas Operator | Sep 1993 |
| 230 | Kruckenberg & Scott | Isabel, KS 67065 | Oil Operator | Dec 2011 |
| 231 | Krueger, A. H., Jr. | Hays, KS 67601 | Oil Operator | Jul 1993 |
| 232 | Krug, Donald H | Russell, KS 67665 | Oil Operator | Aug 2025 |
| 233 | KSC Oil | | Oil Operator | Aug 2025 |
| 234 | Kuhn Walter Dril | | Gas Operator | Dec 1985 |
| 235 | Kutter Oil Co. | Eureka, KS 67045 | Oil Operator | May 2002 |
| 236 | Kutter Oil, Inc. | Eureka, KS 67045 | Oil Operator | Mar 2022 |
| 237 | KWB Oil Property | | Oil Operator | Oct 1992 |
| 238 | KWB Oil Property Management Inc | Tulsa, OK 74103 | Oil & Gas Operator | Nov 2025 |
| 239 | Ky Oil Co | Palco, KS 67657 | Oil & Gas Operator | Aug 2000 |
| 240 | Kykon Oil & Gas, Inc. | Billings, MT 59103 | Oil & Gas Operator | Jun 2007 |
| 241 | Kytex, Inc. | Wichita, KS 67230 | Oil Operator | Dec 2019 |