| 4201 | HEFFELFINGER | Matagorda County, TX | Oil & Gas Property | Apr 2025 |
| 4202 | HEFFELFINGER 519 | Armstrong County, PA | Gas Property | Dec 2024 |
| 4203 | HEFFELINGER | Ashland County, OH | Oil Property | Dec 2024 |
| 4204 | HEFFERN | Fayette County, PA | Gas Property | Dec 2024 |
| 4205 | HEFFERN | Allen County, KS | Gas Property | Mar 2025 |
| 4206 | HEFFERNAN | Russell County, KS | Oil Property | Mar 2025 |
| 4207 | HEFFERNAN | Atascosa County, TX | Oil & Gas Property | Apr 2025 |
| 4208 | HEFFINGTON | Faulkner County, AR | Gas Property | Jun 2024 |
| 4209 | HEFFLEFINGER, RICHARD CUMMINGS | Lewis County, WV | Oil & Gas Property | Dec 2021 |
| 4210 | HEFFNER | Jefferson County, PA | Gas Property | Dec 2024 |
| 4211 | HEFFNER | Clarion County, PA | Gas Property | Dec 2024 |
| 4212 | HEFFRON | Cowley County, KS | Oil & Gas Property | Nov 1989 |
| 4213 | HEFLEY | Wheeler County, TX | Oil & Gas Property | Apr 2025 |
| 4214 | HEFLEY | Rio Blanco County, CO | Oil & Gas Property | May 2025 |
| 4215 | HEFLEY | White County, AR | Gas Property | Jul 2024 |
| 4216 | HEFLEY | Wheeler County, TX | Oil & Gas Property | Apr 2025 |
| 4217 | HEFLEY | Wheeler County, TX | Oil & Gas Property | Apr 2025 |
| 4218 | HEFLEY | Hemphill County, TX | Oil & Gas Property | Apr 2025 |
| 4219 | HEFLEY 24 | Howard County, TX | Oil & Gas Property | Apr 2025 |
| 4220 | HEFLEY-FILLINGIM 39-40 M | Hemphill County, TX | Oil & Gas Property | Apr 2025 |
| 4221 | HEFLEY-PRATER 32-33 M | Hemphill County, TX | Oil & Gas Property | Apr 2025 |
| 4222 | HEFLIN | Doddridge County, WV | Gas Property | Dec 2021 |
| 4223 | HEFLIN | Caddo Parish, LA | Oil Property | Jan 2025 |
| 4224 | HEFLIN 1 | Pittsburg County, OK | Oil & Gas Property | Apr 2025 |
| 4225 | HEFLING | Reno County, KS | Oil Property | Mar 2025 |
| 4226 | HEFNER | Carter County, OK | Oil & Gas Property | May 2025 |
| 4227 | HEFNER | Love County, OK | Oil & Gas Property | Oct 2014 |
| 4228 | HEFNER | Jefferson County, OK | Oil Property | May 2025 |
| 4229 | HEFNER | Kearny County, KS | Oil Property | Mar 2025 |
| 4230 | HEFNER | Stephens County, OK | Oil Property | Apr 2025 |
| 4231 | HEFNER | Braxton County, WV | Oil & Gas Property | Dec 2021 |
| 4232 | HEFNER | Seminole County, OK | Oil & Gas Property | Mar 2025 |
| 4233 | HEFNER | Stephens County, OK | Oil Property | Apr 2025 |
| 4234 | HEFNER | Guernsey County, OH | Oil & Gas Property | Dec 2023 |
| 4235 | HEFNER | Carter County, OK | Oil Property | Oct 1992 |
| 4236 | HEFNER | Stephens County, OK | Oil & Gas Property | May 2025 |
| 4237 | HEFNER | Stephens County, OK | Oil & Gas Property | Mar 2025 |
| 4238 | HEFNER GAS UNIT | Kearny County, KS | Gas Property | Mar 2025 |
| 4239 | HEFT | Kiowa County, KS | Oil & Gas Property | Mar 2025 |
| 4240 | HEFT | Monroe County, OH | Oil & Gas Property | Dec 2024 |
| 4241 | HEG DAY | Kay County, OK | Oil & Gas Property | Jan 2020 |
| 4242 | HEG MASSEY | Haskell County, TX | Oil Property | Apr 2025 |
| 4243 | HEGBERG | Butler County, KS | Oil Property | Mar 2025 |
| 4244 | HEGE | Tioga County, PA | Gas Property | May 2025 |
| 4245 | HEGEDIS | Fayette County, PA | Oil & Gas Property | Dec 2024 |
| 4246 | HEGEMON BS FEDERAL COM | Eddy County, NM | Oil & Gas Property | May 2025 |
| 4247 | HEGEMON WC FEDERAL COM | Eddy County, NM | Oil & Gas Property | May 2025 |
| 4248 | HEGER | Stevens County, KS | Oil & Gas Property | Mar 2025 |
| 4249 | HEGER | Muskogee County, OK | Gas Property | Apr 2025 |
| 4250 | HEGER | Caddo County, OK | Gas Property | Apr 2025 |
| 4251 | HEGER 'B' | Stevens County, KS | Gas Property | Mar 2025 |
| 4252 | HEGG | McKenzie County, ND | Oil & Gas Property | May 2025 |
| 4253 | HEGGE 21-17TFH | Dunn County, ND | Oil & Gas Property | May 2025 |
| 4254 | HEGGIE 7-9 | White County, AR | Gas Property | Jun 2024 |
| 4255 | HEGLE | Hill County, MT | Gas Property | May 2025 |
| 4256 | HEGLE | Hill County, MT | Gas Property | May 2025 |
| 4257 | HEGLER | Dunn County, ND | Oil & Gas Property | May 2025 |
| 4258 | HEGLIN | Beaver County, OK | Oil & Gas Property | Apr 2025 |
| 4259 | HEGWARD A | Freestone County, TX | Oil & Gas Property | Apr 2025 |
| 4260 | HEIBEL A | Dewitt County, TX | Oil & Gas Property | Apr 2025 |
| 4261 | HEICKMAN | Atascosa County, TX | Oil & Gas Property | Mar 2025 |
| 4262 | HEID UNIT | Tuscarawas County, OH | Oil & Gas Property | Dec 2023 |
| 4263 | HEIDAJA | Gray County, TX | Oil & Gas Property | Apr 2025 |
| 4264 | HEIDELBERG | Midland County, TX | Oil & Gas Property | Apr 2025 |
| 4265 | HEIDELBERG | Glasscock County, TX | Oil & Gas Property | Apr 2025 |
| 4266 | HEIDELBERG | Martin County, TX | Oil & Gas Property | Apr 2025 |
| 4267 | HEIDELBERG | Midland County, TX | Oil & Gas Property | Apr 2025 |
| 4268 | HEIDEMANN | Kimball County, NE | Oil Property | Dec 2024 |
| 4269 | HEIDEMANN | Kimball County, NE | Oil Property | Dec 2024 |
| 4270 | HEIDEMANN UNIT | Washington County, TX | Oil & Gas Property | Apr 2025 |
| 4271 | HEIDER - HAESE 1H | Wilson County, TX | Oil & Gas Property | Apr 2025 |
| 4272 | HEIDI | Grant County, OK | Oil & Gas Property | May 2025 |
| 4273 | HEIDI | Gray County, TX | Gas Property | Feb 2025 |
| 4274 | HEIDI 1-4H | Williams County, ND | Oil & Gas Property | May 2025 |
| 4275 | HEIDI 1H | Tarrant County, TX | Gas Property | Apr 2025 |
| 4276 | HEIDI 37 | Glasscock County, TX | Oil & Gas Property | Apr 2025 |
| 4277 | HEIDI CS FEDERAL | Campbell County, WY | Gas Property | Aug 2018 |
| 4278 | HEIDI HO | Wilson County, TX | Oil & Gas Property | Apr 2025 |
| 4279 | HEIDI-LITTLE MIPA 2H | Tarrant County, TX | Gas Property | Apr 2025 |
| 4280 | HEIDLEBERG EST. UNIT 1 | Anderson County, TX | Oil & Gas Property | Apr 2025 |
| 4281 | HEIDRICK | Greenwood County, KS | Oil Property | Jan 2025 |
| 4282 | HEIDRICK 1 | Colusa County, CA | Gas Property | Mar 2020 |
| 4283 | HEIFNER | Ohio County, KY | Oil Property | Dec 2017 |
| 4284 | HEIGHT CC 6 7 FEDERAL COM | Eddy County, NM | Oil & Gas Property | May 2025 |
| 4285 | HEIGHTS COM | San Juan County, NM | Oil & Gas Property | May 2025 |
| 4286 | HEIGLEY | Perry County, OH | Oil & Gas Property | Dec 2024 |
| 4287 | HEIL | Lipscomb County, TX | Oil & Gas Property | Jun 2020 |
| 4288 | HEIL | Leon County, TX | Oil & Gas Property | Apr 2025 |
| 4289 | HEIL | Lipscomb County, TX | Oil & Gas Property | Apr 2025 |
| 4290 | HEILAND | Campbell County, WY | Oil & Gas Property | Apr 2025 |
| 4291 | HEILAND | Campbell County, WY | Gas Property | Mar 2009 |
| 4292 | HEILIGER | Caddo County, OK | Oil & Gas Property | Apr 2025 |
| 4293 | HEILMAN | Meigs County, OH | Oil & Gas Property | Dec 2024 |
| 4294 | HEILMAN | Neosho County, KS | Oil & Gas Property | Mar 2025 |
| 4295 | HEILPERIN | Caddo Parish, LA | Oil & Gas Property | Jan 2025 |
| 4296 | HEIM | Leavenworth County, KS | Oil & Gas Property | Mar 2025 |
| 4297 | HEIM | La Salle County, TX | Oil & Gas Property | Apr 2025 |
| 4298 | HEIM | Russell County, KS | Oil Property | Mar 2025 |
| 4299 | HEIMAN | Colorado County, TX | Oil & Gas Property | Apr 2025 |
| 4300 | HEIMAN GAS UNIT | Finney County, KS | Gas Property | Mar 2025 |