| 4201 | FINNUP | Hamilton County, KS | Gas Property | Mar 2025 |
| 4202 | FINNUP | Finney County, KS | Gas Property | Mar 2025 |
| 4203 | FINNUP | Gray County, KS | Oil Property | Sep 1990 |
| 4204 | FINNUP | Finney County, KS | Oil & Gas Property | Mar 2025 |
| 4205 | FINNUP | Kearny County, KS | Gas Property | Mar 2025 |
| 4206 | FINNUP | Finney County, KS | Gas Property | Mar 2025 |
| 4207 | FIRST NATIONAL BANK | Stanton County, KS | Gas Property | Mar 2025 |
| 4208 | FIRST NATIONAL BANK GAS UNIT 'B' | Finney County, KS | Gas Property | Mar 2025 |
| 4209 | FIRST NATL | Cowley County, KS | Oil Property | Jan 2025 |
| 4210 | FIRST STATE BANK OF LARNED | Morton County, KS | Gas Property | Mar 2025 |
| 4211 | FISCHER | Ford County, KS | Oil Property | Mar 2025 |
| 4212 | FISCHER | Stafford County, KS | Oil & Gas Property | Mar 2025 |
| 4213 | FISCHER | Grant County, KS | Gas Property | Mar 2025 |
| 4214 | FISCHER | Stafford County, KS | Oil Property | Dec 2024 |
| 4215 | FISCHER | Seward County, KS | Gas Property | Mar 2025 |
| 4216 | FISCHER | Stafford County, KS | Oil Property | Nov 2024 |
| 4217 | FISCHER | Stafford County, KS | Oil Property | Mar 2025 |
| 4218 | FISCHER | Coffey County, KS | Oil Property | Mar 2025 |
| 4219 | FISCHER | Ellis County, KS | Oil Property | Mar 2025 |
| 4220 | FISCHER-CRASK | Barber County, KS | Oil & Gas Property | Mar 2025 |
| 4221 | FISCHLI | Rooks County, KS | Oil Property | Nov 2024 |
| 4222 | FISCHLI | Phillips County, KS | Oil Property | Jan 2025 |
| 4223 | FISCHLI | Rooks County, KS | Oil Property | Mar 2025 |
| 4224 | FISH | Stafford County, KS | Oil & Gas Property | Aug 2015 |
| 4225 | FISHER | Stevens County, KS | Oil & Gas Property | Feb 2025 |
| 4226 | FISHER | Ellis County, KS | Oil Property | Mar 2025 |
| 4227 | FISHER | Kiowa County, KS | Oil & Gas Property | Mar 2025 |
| 4228 | FISHER | Stafford County, KS | Oil & Gas Property | Mar 2025 |
| 4229 | FISHER | Rawlins County, KS | Oil Property | Mar 2025 |
| 4230 | FISHER | Stafford County, KS | Oil Property | Dec 1997 |
| 4231 | FISHER | Cheyenne County, KS | Oil Property | Mar 2025 |
| 4232 | FISHER | Stafford County, KS | Oil & Gas Property | Mar 2025 |
| 4233 | FISHER | Stafford County, KS | Oil & Gas Property | Mar 2025 |
| 4234 | FISHER 1 | Edwards County, KS | Oil & Gas Property | Mar 2025 |
| 4235 | FISHER CATTLE CO | Rawlins County, KS | Oil Property | Mar 2025 |
| 4236 | FITCH | Edwards County, KS | Oil Property | Jan 2025 |
| 4237 | FITHIAN | Morton County, KS | Gas Property | Mar 2025 |
| 4238 | FITZGERALD | Barber County, KS | Oil & Gas Property | Mar 2025 |
| 4239 | FITZGERALD | Ness County, KS | Oil Property | Feb 2025 |
| 4240 | FITZGERALD | Seward County, KS | Oil Property | Dec 2024 |
| 4241 | FITZGERALD | Seward County, KS | Oil & Gas Property | Mar 2025 |
| 4242 | FITZGERALD | Texas County, OK | Gas Property | Apr 2025 |
| 4243 | FITZGERALD | Barber County, KS | Oil & Gas Property | Mar 2025 |
| 4244 | FITZGERALD | Seward County, KS | Oil & Gas Property | Feb 2025 |
| 4245 | FITZGERALD | Kingman County, KS | Oil & Gas Property | Mar 2025 |
| 4246 | FITZGERALD A | Haskell County, KS | Oil & Gas Property | Mar 2025 |
| 4247 | FITZGIBBONS | Sherman County, KS | Gas Property | Mar 2025 |
| 4248 | FITZHUGH | Norton County, KS | Oil Property | Feb 2025 |
| 4249 | FITZPATRICK | Rice County, KS | Gas Property | Mar 2025 |
| 4250 | FITZPATRICK | Woodson County, KS | Oil Property | Mar 2025 |
| 4251 | FITZSIMMONS | Pratt County, KS | Oil & Gas Property | Sep 1995 |
| 4252 | FIZZELL | Stanton County, KS | Gas Property | Mar 2025 |
| 4253 | FLAGLER | Rooks County, KS | Oil Property | Mar 2025 |
| 4254 | FLAHARTY, RAY L | Labette County, KS | Gas Property | Mar 2025 |
| 4255 | FLAHERTY | Coffey County, KS | Oil Property | Feb 2025 |
| 4256 | FLAKE | Coffey County, KS | Oil Property | Mar 2025 |
| 4257 | FLANAGAN | Montgomery County, KS | Oil & Gas Property | Feb 2025 |
| 4258 | FLANDERS | Barton County, KS | Oil Property | Mar 2025 |
| 4259 | FLANDERS | Montgomery County, KS | Gas Property | Mar 2025 |
| 4260 | FLANIGAN | Phillips County, KS | Oil Property | Jul 1988 |
| 4261 | FLAX | Gove County, KS | Oil Property | Mar 2025 |
| 4262 | FLAX | Ellis County, KS | Oil Property | Mar 2025 |
| 4263 | FLAX B | Trego County, KS | Oil Property | Jan 2025 |
| 4264 | FLEGG | Rooks County, KS | Oil Property | Feb 2025 |
| 4265 | FLEGLER | Russell County, KS | Oil Property | Mar 2025 |
| 4266 | FLEISHER | Chautauqua County, KS | Oil Property | Mar 2025 |
| 4267 | FLEMING | Greenwood County, KS | Oil Property | Mar 2025 |
| 4268 | FLEMING | Franklin County, KS | Oil Property | Mar 2025 |
| 4269 | FLEMING | Montgomery County, KS | Oil & Gas Property | Mar 2025 |
| 4270 | FLEMING | Finney County, KS | Gas Property | Mar 2025 |
| 4271 | FLEMING | Harper County, KS | Oil & Gas Property | Mar 2025 |
| 4272 | FLEMING 1 | Ellsworth County, KS | Gas Property | Mar 2025 |
| 4273 | FLEMMING | Cheyenne County, KS | Oil Property | Feb 2025 |
| 4274 | FLEMMING 1-24 | Cheyenne County, KS | Oil Property | Mar 2025 |
| 4275 | FLETCHER | Grant County, KS | Gas Property | Mar 2025 |
| 4276 | FLETCHER | Haskell County, KS | Oil & Gas Property | Mar 2025 |
| 4277 | FLETCHER | Grant County, KS | Gas Property | Mar 2025 |
| 4278 | FLETCHER | Barton County, KS | Oil Property | Mar 2025 |
| 4279 | FLETCHER | Kearny County, KS | Oil Property | Nov 2013 |
| 4280 | FLETCHER 'B' | Kearny County, KS | Gas Property | Mar 2025 |
| 4281 | FLETCHER-PETRO UNIT | Grant County, KS | Gas Property | Mar 2025 |
| 4282 | FLEWHARTY | Allen County, KS | Oil Property | Jan 2025 |
| 4283 | FLICK | Haskell County, KS | Gas Property | Mar 2025 |
| 4284 | FLICKNER | Kingman County, KS | Oil & Gas Property | Mar 2025 |
| 4285 | FLINN | Ellis County, KS | Oil Property | Jun 2024 |
| 4286 | FLINSBAUGH | Miami County, KS | Oil Property | Aug 2013 |
| 4287 | FLINT HILLS | Kearny County, KS | Oil Property | Mar 2025 |
| 4288 | FLOOK | McPherson County, KS | Oil Property | Mar 2025 |
| 4289 | FLORA | Rice County, KS | Oil Property | Mar 2025 |
| 4290 | FLORA | Stafford County, KS | Oil Property | Mar 2025 |
| 4291 | FLORA 1-24 | Gove County, KS | Oil Property | Mar 2025 |
| 4292 | FLOREINE | Barton County, KS | Oil Property | Mar 2025 |
| 4293 | FLORENCE MARPLE LIVING TRUST | Wilson County, KS | Gas Property | Mar 2025 |
| 4294 | FLORENCE TOEDMA | Woodson County, KS | Oil Property | Mar 2025 |
| 4295 | FLORY | Haskell County, KS | Gas Property | Apr 2024 |
| 4296 | FLOSSIE WHITE | Chautauqua County, KS | Oil Property | Jun 2024 |
| 4297 | FLOWER | Stevens County, KS | Gas Property | Mar 2025 |
| 4298 | FLOWER 'A' 1 | Stevens County, KS | Gas Property | Mar 2025 |
| 4299 | FLOWER UNIT | Stevens County, KS | Gas Property | Mar 2025 |
| 4300 | FLOWERS | Grant County, KS | Gas Property | Mar 2025 |