| 44201 | FT. CHADBOURNE ODOM LIME UNIT | Coke County, TX | Oil & Gas Property | Jun 2026 |
| 44202 | FT. WORTH NATL. BANK | Ward County, TX | Oil & Gas Property | Dec 2019 |
| 44203 | FT. WORTH NATL. BANK | Glasscock County, TX | Oil & Gas Property | Apr 2021 |
| 44204 | FT.TRINIDAD UPPER GLEN ROSE UNIT | Madison County, TX | Oil & Gas Property | Jun 2026 |
| 44205 | FTH-22-34-BND | Burke County, ND | Oil & Gas Property | Jun 2026 |
| 44206 | FTH1 | Burke County, ND | Oil & Gas Property | Jun 2026 |
| 44207 | FTUN 1495-S | Sweetwater County, WY | Oil & Gas Property | Jun 2026 |
| 44208 | FUCE 5-30 | Richland County, MT | Oil & Gas Property | Jun 2026 |
| 44209 | FUCHS | Glasscock County, TX | Oil & Gas Property | May 2026 |
| 44210 | FUCHS | Beckham County, OK | Oil & Gas Property | Jun 2026 |
| 44211 | FUCHS | Fayette County, TX | Oil & Gas Property | Jun 2026 |
| 44212 | FUCHS "D" | Williamson County, TX | Oil Property | May 2026 |
| 44213 | FUCHS A | Monroe County, OH | Gas Property | Jun 2026 |
| 44214 | FUCHS D 46-39 (ALLOC | Reagan County, TX | Oil & Gas Property | May 2026 |
| 44215 | FUCHS F 46-34 (ALLOC | Glasscock County, TX | Oil & Gas Property | May 2026 |
| 44216 | FUCIK | Wharton County, TX | Oil & Gas Property | Jun 2026 |
| 44217 | FUDGE | Allen County, KS | Oil Property | Apr 2026 |
| 44218 | FUENTES | Sherman County, TX | Gas Property | Jun 2026 |
| 44219 | FUENTES J.R | Starr County, TX | Oil & Gas Property | May 2026 |
| 44220 | FUGATE | Caddo County, OK | Oil Property | Apr 2026 |
| 44221 | FUGATE | Knott County, KY | Oil & Gas Property | Dec 2024 |
| 44222 | FUGATE | Knott County, KY | Gas Property | Dec 2021 |
| 44223 | FUGATE | Knott County, KY | Gas Property | Dec 2024 |
| 44224 | FUGERE | Daniels County, MT | Oil & Gas Property | Dec 2008 |
| 44225 | FUGERE 3 | Golden Valley County, ND | Oil & Gas Property | Jun 2026 |
| 44226 | FUGIT | Woods County, OK | Oil & Gas Property | Jun 2026 |
| 44227 | FUGLER | Santa Barbara County, CA | Oil & Gas Property | Jun 2022 |
| 44228 | FUGLER | Santa Barbara County, CA | Oil & Gas Property | Jul 1989 |
| 44229 | FUHLBERG, JA | Madison County, TX | Oil & Gas Property | May 2026 |
| 44230 | FUHR | Leavenworth County, KS | Oil Property | May 1996 |
| 44231 | FUHRMAN | Andrews County, TX | Oil & Gas Property | May 2026 |
| 44232 | FUHRMAN | Kern County, CA | Oil Property | Aug 1992 |
| 44233 | FUHRMAN | Bourbon County, KS | Oil Property | May 2026 |
| 44234 | FUHRMAN | Allen County, KS | Oil Property | Apr 2026 |
| 44235 | FUHRMAN | Wheeler County, TX | Oil & Gas Property | Jun 2026 |
| 44236 | FUHRMAN | Andrews County, TX | Oil & Gas Property | Jun 2026 |
| 44237 | FUJI 1206 | Canadian County, OK | Oil & Gas Property | Jun 2026 |
| 44238 | FUJI UNIT | Karnes County, TX | Oil & Gas Property | Jun 2026 |
| 44239 | FUKSA | Kingfisher County, OK | Oil & Gas Property | Jun 2026 |
| 44240 | FULBRIGHT W.C | Erath County, TX | Gas Property | Jun 2026 |
| 44241 | FULCHER | Jack County, TX | Oil & Gas Property | Jun 2026 |
| 44242 | FULCHER | Webster County, KY | Oil Property | Dec 2014 |
| 44243 | FULCHER, JOE | Henderson County, KY | Oil Property | Dec 2020 |
| 44244 | FULCHER, JOE & A G PRITCHETT | Henderson County, KY | Oil Property | Dec 2022 |
| 44245 | FULFER MRS. W.T. ETAL GAS UNIT | Erath County, TX | Gas Property | Jun 2026 |
| 44246 | FULGHAM | Clay County, TX | Oil & Gas Property | May 2013 |
| 44247 | FULGHUM | Wilson County, KS | Gas Property | Aug 2025 |
| 44248 | FULHAGE | Woodson County, KS | Oil Property | Feb 2026 |
| 44249 | FULK | Stevens County, KS | Gas Property | May 2026 |
| 44250 | FULKERSON | Young County, TX | Oil & Gas Property | May 2026 |
| 44251 | FULKERSON | Butler County, KS | Oil Property | May 2026 |
| 44252 | FULKERSON | Stevens County, KS | Gas Property | May 2026 |
| 44253 | FULKERSON | Creek County, OK | Oil & Gas Property | Jun 2026 |
| 44254 | FULKERSON | Campbell County, WY | Gas Property | Nov 2010 |
| 44255 | FULKERSON | Daviess County, KY | Oil Property | Oct 2023 |
| 44256 | FULKERSON | Dawson County, TX | Oil & Gas Property | Jun 2026 |
| 44257 | FULKERSON 'B' | Morton County, KS | Gas Property | Aug 2025 |
| 44258 | FULKS | Coshocton County, OH | Oil Property | Dec 2025 |
| 44259 | FULL | Wirt County, WV | Oil & Gas Property | Dec 2018 |
| 44260 | FULL BAR | Andrews County, TX | Oil & Gas Property | Jun 2026 |
| 44261 | FULL CHOKE | Eddy County, NM | Oil & Gas Property | Jul 2026 |
| 44262 | FULL GOSPEL | Payne County, OK | Oil & Gas Property | Jun 2026 |
| 44263 | FULL HOUSE | Reagan County, TX | Oil & Gas Property | Jun 2026 |
| 44264 | FULL HOUSE 30 | Eddy County, NM | Oil & Gas Property | Jun 2026 |
| 44265 | FULL SAIL | Rio Arriba County, NM | Oil & Gas Property | Jul 2026 |
| 44266 | FULL SERVICE IN | Stafford County, KS | Oil Property | May 2026 |
| 44267 | FULL TANK 33 FED | Eddy County, NM | Oil & Gas Property | Jan 2012 |
| 44268 | FULL TILT 18 7 FEDERAL | Eddy County, NM | Oil & Gas Property | Jun 2026 |
| 44269 | FULL, LEWIS | Wirt County, WV | Oil & Gas Property | Jun 2012 |
| 44270 | FULLBRIGHT 1 | Caddo County, OK | Oil & Gas Property | Jun 2026 |
| 44271 | FULLEN | Leon County, TX | Oil & Gas Property | Jun 2026 |
| 44272 | FULLEN G | Leon County, TX | Oil & Gas Property | Jun 2026 |
| 44273 | FULLER | Scotts Bluff County, NE | Oil & Gas Property | Dec 2025 |
| 44274 | FULLER | Scurry County, TX | Oil & Gas Property | Jun 2026 |
| 44275 | FULLER | Campbell County, WY | Gas Property | Jun 2012 |
| 44276 | FULLER | Dunn County, ND | Oil & Gas Property | Jun 2026 |
| 44277 | FULLER | Nacogdoches County, TX | Oil & Gas Property | Jun 2026 |
| 44278 | FULLER | McKean County, PA | Oil & Gas Property | Dec 2025 |
| 44279 | FULLER | Medina County, OH | Oil & Gas Property | Dec 2017 |
| 44280 | FULLER | Howard County, TX | Oil & Gas Property | Jun 2026 |
| 44281 | FULLER | Lincoln Parish, LA | Oil & Gas Property | Dec 2024 |
| 44282 | FULLER | Lane County, KS | Oil Property | Mar 2026 |
| 44283 | FULLER | Scurry County, TX | Oil & Gas Property | Jun 2026 |
| 44284 | FULLER | Parker County, TX | Gas Property | Jun 2026 |
| 44285 | FULLER | Ashtabula County, OH | Oil & Gas Property | Dec 2015 |
| 44286 | FULLER | Furnas County, NE | Oil Property | Dec 2025 |
| 44287 | FULLER | Garvin County, OK | Oil & Gas Property | May 2026 |
| 44288 | FULLER | Finney County, KS | Oil Property | May 2026 |
| 44289 | FULLER | Stevens County, KS | Gas Property | May 2026 |
| 44290 | FULLER | Greene County, PA | Oil & Gas Property | Jun 2026 |
| 44291 | FULLER | Webb County, TX | Oil & Gas Property | Jun 2026 |
| 44292 | FULLER | De Soto Parish, LA | Gas Property | Dec 2024 |
| 44293 | FULLER | Caddo County, OK | Oil Property | Mar 2026 |
| 44294 | FULLER | Moore County, TX | Oil & Gas Property | May 2026 |
| 44295 | FULLER | Archer County, TX | Oil & Gas Property | Jun 2026 |
| 44296 | FULLER | Major County, OK | Oil & Gas Property | Jun 2026 |
| 44297 | FULLER | Chautauqua County, KS | Oil & Gas Property | May 2020 |
| 44298 | FULLER | Noble County, OH | Oil & Gas Property | Jun 2026 |
| 44299 | FULLER | Lafayette County, AR | Oil Property | May 1980 |
| 44300 | FULLER | Clay County, TX | Oil & Gas Property | Jun 2026 |