| 201 | FIRST NATIONAL BANK | Stanton County, KS | Gas Property | Mar 2025 |
| 202 | FIRST NATIONAL BANK GAS UNIT 'B' | Finney County, KS | Gas Property | Mar 2025 |
| 203 | FIRST NATL | Cowley County, KS | Oil Property | Jan 2025 |
| 204 | FIRST STATE BANK OF LARNED | Morton County, KS | Gas Property | Mar 2025 |
| 205 | FISCHER | Ford County, KS | Oil Property | Mar 2025 |
| 206 | FISCHER | Stafford County, KS | Oil & Gas Property | Mar 2025 |
| 207 | FISCHER | Grant County, KS | Gas Property | Mar 2025 |
| 208 | FISCHER | Stafford County, KS | Oil Property | Dec 2024 |
| 209 | FISCHER | Seward County, KS | Gas Property | Mar 2025 |
| 210 | FISCHER | Stafford County, KS | Oil Property | Nov 2024 |
| 211 | FISCHER | Stafford County, KS | Oil Property | Mar 2025 |
| 212 | FISCHER | Coffey County, KS | Oil Property | Mar 2025 |
| 213 | FISCHER | Ellis County, KS | Oil Property | Mar 2025 |
| 214 | FISCHER-CRASK | Barber County, KS | Oil & Gas Property | Mar 2025 |
| 215 | FISCHLI | Rooks County, KS | Oil Property | Nov 2024 |
| 216 | FISCHLI | Phillips County, KS | Oil Property | Jan 2025 |
| 217 | FISCHLI | Rooks County, KS | Oil Property | Mar 2025 |
| 218 | FISH | Stafford County, KS | Oil & Gas Property | Aug 2015 |
| 219 | FISHER | Stevens County, KS | Oil & Gas Property | Feb 2025 |
| 220 | FISHER | Ellis County, KS | Oil Property | Mar 2025 |
| 221 | FISHER | Kiowa County, KS | Oil & Gas Property | Mar 2025 |
| 222 | FISHER | Stafford County, KS | Oil & Gas Property | Mar 2025 |
| 223 | FISHER | Rawlins County, KS | Oil Property | Mar 2025 |
| 224 | FISHER | Stafford County, KS | Oil Property | Dec 1997 |
| 225 | FISHER | Cheyenne County, KS | Oil Property | Mar 2025 |
| 226 | FISHER | Stafford County, KS | Oil & Gas Property | Mar 2025 |
| 227 | FISHER | Stafford County, KS | Oil & Gas Property | Mar 2025 |
| 228 | FISHER 1 | Edwards County, KS | Oil & Gas Property | Mar 2025 |
| 229 | FISHER CATTLE CO | Rawlins County, KS | Oil Property | Mar 2025 |
| 230 | FITCH | Edwards County, KS | Oil Property | Jan 2025 |
| 231 | FITHIAN | Morton County, KS | Gas Property | Mar 2025 |
| 232 | FITZGERALD | Barber County, KS | Oil & Gas Property | Mar 2025 |
| 233 | FITZGERALD | Ness County, KS | Oil Property | Feb 2025 |
| 234 | FITZGERALD | Seward County, KS | Oil Property | Dec 2024 |
| 235 | FITZGERALD | Seward County, KS | Oil & Gas Property | Mar 2025 |
| 236 | FITZGERALD | Texas County, OK | Gas Property | Apr 2025 |
| 237 | FITZGERALD | Barber County, KS | Oil & Gas Property | Mar 2025 |
| 238 | FITZGERALD | Seward County, KS | Oil & Gas Property | Feb 2025 |
| 239 | FITZGERALD | Kingman County, KS | Oil & Gas Property | Mar 2025 |
| 240 | FITZGERALD A | Haskell County, KS | Oil & Gas Property | Mar 2025 |
| 241 | FITZGIBBONS | Sherman County, KS | Gas Property | Mar 2025 |
| 242 | FITZHUGH | Norton County, KS | Oil Property | Feb 2025 |
| 243 | FITZPATRICK | Rice County, KS | Gas Property | Mar 2025 |
| 244 | FITZPATRICK | Woodson County, KS | Oil Property | Mar 2025 |
| 245 | FITZSIMMONS | Pratt County, KS | Oil & Gas Property | Sep 1995 |
| 246 | FIZZELL | Stanton County, KS | Gas Property | Mar 2025 |
| 247 | FLAGLER | Rooks County, KS | Oil Property | Mar 2025 |
| 248 | FLAHARTY, RAY L | Labette County, KS | Gas Property | Mar 2025 |
| 249 | FLAHERTY | Coffey County, KS | Oil Property | Feb 2025 |
| 250 | FLAKE | Coffey County, KS | Oil Property | Mar 2025 |
| 251 | FLANAGAN | Montgomery County, KS | Oil & Gas Property | Feb 2025 |
| 252 | FLANDERS | Barton County, KS | Oil Property | Mar 2025 |
| 253 | FLANDERS | Montgomery County, KS | Gas Property | Mar 2025 |
| 254 | FLANIGAN | Phillips County, KS | Oil Property | Jul 1988 |
| 255 | FLAX | Gove County, KS | Oil Property | Mar 2025 |
| 256 | FLAX | Ellis County, KS | Oil Property | Mar 2025 |
| 257 | FLAX B | Trego County, KS | Oil Property | Jan 2025 |
| 258 | FLEGG | Rooks County, KS | Oil Property | Feb 2025 |
| 259 | FLEGLER | Russell County, KS | Oil Property | Mar 2025 |
| 260 | FLEISHER | Chautauqua County, KS | Oil Property | Mar 2025 |
| 261 | FLEMING | Greenwood County, KS | Oil Property | Mar 2025 |
| 262 | FLEMING | Franklin County, KS | Oil Property | Mar 2025 |
| 263 | FLEMING | Montgomery County, KS | Oil & Gas Property | Mar 2025 |
| 264 | FLEMING | Finney County, KS | Gas Property | Mar 2025 |
| 265 | FLEMING | Harper County, KS | Oil & Gas Property | Mar 2025 |
| 266 | FLEMING 1 | Ellsworth County, KS | Gas Property | Mar 2025 |
| 267 | FLEMMING | Cheyenne County, KS | Oil Property | Feb 2025 |
| 268 | FLEMMING 1-24 | Cheyenne County, KS | Oil Property | Mar 2025 |
| 269 | FLETCHER | Grant County, KS | Gas Property | Mar 2025 |
| 270 | FLETCHER | Haskell County, KS | Oil & Gas Property | Mar 2025 |
| 271 | FLETCHER | Grant County, KS | Gas Property | Mar 2025 |
| 272 | FLETCHER | Barton County, KS | Oil Property | Mar 2025 |
| 273 | FLETCHER | Kearny County, KS | Oil Property | Nov 2013 |
| 274 | FLETCHER 'B' | Kearny County, KS | Gas Property | Mar 2025 |
| 275 | FLETCHER-PETRO UNIT | Grant County, KS | Gas Property | Mar 2025 |
| 276 | FLEWHARTY | Allen County, KS | Oil Property | Jan 2025 |
| 277 | FLICK | Haskell County, KS | Gas Property | Mar 2025 |
| 278 | FLICKNER | Kingman County, KS | Oil & Gas Property | Mar 2025 |
| 279 | FLINN | Ellis County, KS | Oil Property | Jun 2024 |
| 280 | FLINSBAUGH | Miami County, KS | Oil Property | Aug 2013 |
| 281 | FLINT HILLS | Kearny County, KS | Oil Property | Mar 2025 |
| 282 | FLOOK | McPherson County, KS | Oil Property | Mar 2025 |
| 283 | FLORA | Rice County, KS | Oil Property | Mar 2025 |
| 284 | FLORA | Stafford County, KS | Oil Property | Mar 2025 |
| 285 | FLORA 1-24 | Gove County, KS | Oil Property | Mar 2025 |
| 286 | FLOREINE | Barton County, KS | Oil Property | Mar 2025 |
| 287 | FLORENCE MARPLE LIVING TRUST | Wilson County, KS | Gas Property | Mar 2025 |
| 288 | FLORENCE TOEDMA | Woodson County, KS | Oil Property | Mar 2025 |
| 289 | FLORY | Haskell County, KS | Gas Property | Apr 2024 |
| 290 | FLOSSIE WHITE | Chautauqua County, KS | Oil Property | Jun 2024 |
| 291 | FLOWER | Stevens County, KS | Gas Property | Mar 2025 |
| 292 | FLOWER 'A' 1 | Stevens County, KS | Gas Property | Mar 2025 |
| 293 | FLOWER UNIT | Stevens County, KS | Gas Property | Mar 2025 |
| 294 | FLOWERS | Grant County, KS | Gas Property | Mar 2025 |
| 295 | FLOYD | Chautauqua County, KS | Oil & Gas Property | Mar 2025 |
| 296 | FLOYD | Wilson County, KS | Oil & Gas Property | Mar 2025 |
| 297 | FLOYD | Seward County, KS | Oil & Gas Property | Mar 2025 |
| 298 | FLOYD | Stanton County, KS | Gas Property | Mar 2025 |
| 299 | FLOYD GAS UNIT | Stanton County, KS | Gas Property | Mar 2025 |
| 300 | FLOYD ISCH | Coffey County, KS | Oil Property | Oct 2023 |