| 301 | KANNIANEN | Mountrail County, ND | Oil & Gas Property | Oct 2025 |
| 302 | KANNIANEN FEDERAL 11-4TFHU | Mountrail County, ND | Oil & Gas Property | Oct 2025 |
| 303 | KANNING | Toole County, MT | Oil & Gas Property | May 2025 |
| 304 | KANO | Creek County, OK | Oil & Gas Property | Feb 2025 |
| 305 | KANOPOLIS | Ellsworth County, KS | Gas Property | Jun 2025 |
| 306 | KANSAS | Morton County, KS | Gas Property | Jun 2025 |
| 307 | KANSAS | Morton County, KS | Gas Property | Jun 2025 |
| 308 | KANSAS | Finney County, KS | Gas Property | Jun 2025 |
| 309 | KANSAS 1178 | Neosho County, KS | Gas Property | Jun 2025 |
| 310 | KANSAS 21 28 W | Eddy County, NM | Oil & Gas Property | Sep 2025 |
| 311 | KANSAS 28 33 W | Eddy County, NM | Oil & Gas Property | Sep 2025 |
| 312 | KANSAS B | Finney County, KS | Gas Property | Jun 2025 |
| 313 | KANSAS CITY L | Seward County, KS | Oil & Gas Property | Jun 2025 |
| 314 | KANSAS REGENTS 2-15 | Morton County, KS | Gas Property | Jun 2025 |
| 315 | KANSAS STATE | Lea County, NM | Oil & Gas Property | Sep 2025 |
| 316 | KANSAS STATE GAS UNIT | Finney County, KS | Gas Property | Jun 2025 |
| 317 | KANSAS UNIVERSITY | Seward County, KS | Gas Property | Jun 2025 |
| 318 | KANSAS UNIVERSITY | Morton County, KS | Oil & Gas Property | Jun 2025 |
| 319 | KANSAS UNIVERSITY | Morton County, KS | Oil & Gas Property | Jun 2025 |
| 320 | KANSAS UNIVERSITY | Stevens County, KS | Gas Property | Jun 2025 |
| 321 | KANSAS UNIVERSITY 2-32 | Comanche County, KS | Oil & Gas Property | Jun 2025 |
| 322 | KANSAS UNIVERSITY GAS UNIT 'B' | Morton County, KS | Gas Property | Jun 2025 |
| 323 | KANSAS-SCOTT | Wise County, TX | Oil & Gas Property | Sep 2025 |
| 324 | KANSU RED | Atascosa County, TX | Oil & Gas Property | Sep 2025 |
| 325 | KANTOR | Creek County, OK | Oil & Gas Property | Oct 2025 |
| 326 | KANUCKLE W | Coshocton County, OH | Oil Property | Dec 1996 |
| 327 | KANYER | Williams County, ND | Oil & Gas Property | Oct 2025 |
| 328 | KANZELMEYER | Phillips County, KS | Oil Property | Jun 2025 |
| 329 | KAPAVIK UNIT | Gonzales County, TX | Oil & Gas Property | Sep 2025 |
| 330 | KAPEG | Kern County, CA | Oil Property | Oct 2025 |
| 331 | KAPLAN | Canadian County, OK | Oil & Gas Property | Oct 2025 |
| 332 | KAPLAN | Carroll County, OH | Oil & Gas Property | Dec 2024 |
| 333 | KAPLE YX | Potter County, PA | Gas Property | Sep 2025 |
| 334 | KAPP | Lyon County, KS | Oil Property | Nov 2013 |
| 335 | KAPP | Seward County, KS | Oil & Gas Property | Jun 2025 |
| 336 | KAPPA 56-2-27 1H | Reeves County, TX | Oil & Gas Property | Sep 2025 |
| 337 | KAPPUS | Canadian County, OK | Oil & Gas Property | Sep 2025 |
| 338 | KAPS | Russell County, KS | Oil Property | Mar 1991 |
| 339 | KAPSER UNIT | Robertson County, TX | Oil & Gas Property | Aug 2025 |
| 340 | KAPUSTA | Indiana County, PA | Gas Property | Dec 2024 |
| 341 | KARAKAKES H1 | Weld County, CO | Oil & Gas Property | Mar 2018 |
| 342 | KARALES | Orange County, CA | Oil & Gas Property | Jan 1992 |
| 343 | KARAN | McClain County, OK | Oil & Gas Property | Oct 2025 |
| 344 | KARAS | Portage County, OH | Oil & Gas Property | Dec 2024 |
| 345 | KARAS | Portage County, OH | Oil & Gas Property | Dec 2024 |
| 346 | KARBER | Waller County, TX | Oil & Gas Property | Aug 2025 |
| 347 | KARBER | Rice County, KS | Oil Property | Jul 2000 |
| 348 | KARBER | Major County, OK | Oil & Gas Property | May 2024 |
| 349 | KARBER | Saline County, KS | Oil Property | May 2025 |
| 350 | KARBER | Canadian County, OK | Oil & Gas Property | Sep 2025 |
| 351 | KARBOWSKI | Mountrail County, ND | Oil & Gas Property | Oct 2025 |
| 352 | KARCH BLUE D | Weld County, CO | Oil & Gas Property | Jul 2020 |
| 353 | KARCHER | Noble County, OK | Oil & Gas Property | May 2025 |
| 354 | KARDELL S. GU | San Augustine County, TX | Oil & Gas Property | Sep 2025 |
| 355 | KARDOKUS | Caddo County, OK | Oil & Gas Property | Oct 2025 |
| 356 | KAREN | Gray County, TX | Oil & Gas Property | Sep 2025 |
| 357 | KAREN | Carson County, TX | Oil & Gas Property | Sep 2019 |
| 358 | KAREN | Seminole County, OK | Oil Property | Feb 2007 |
| 359 | KAREN | Pecos County, TX | Oil Property | Sep 2025 |
| 360 | KAREN | Cowley County, KS | Oil & Gas Property | Jun 2025 |
| 361 | KAREN | Upton County, TX | Oil & Gas Property | Sep 2025 |
| 362 | KAREN | Upton County, TX | Oil & Gas Property | Sep 2025 |
| 363 | KAREN | Lincoln County, OK | Oil & Gas Property | Nov 2008 |
| 364 | KAREN | Richland County, MT | Oil & Gas Property | Sep 2025 |
| 365 | KAREN (OCCIDENTAL) | Pecos County, TX | Oil Property | Aug 2025 |
| 366 | KAREN 23-9-7 | Guernsey County, OH | Oil & Gas Property | Sep 2025 |
| 367 | KAREN 2610 | Alfalfa County, OK | Oil & Gas Property | Oct 2025 |
| 368 | KAREN 2811 | Alfalfa County, OK | Oil & Gas Property | Sep 2025 |
| 369 | KAREN FEDERAL | Chaves County, NM | Gas Property | Sep 2025 |
| 370 | KAREN FEE 17 1H | Culberson County, TX | Oil & Gas Property | Sep 2025 |
| 371 | KAREN HIXON | San Juan County, NM | Oil & Gas Property | Sep 2025 |
| 372 | KAREN KENNEDY UNIT | Bee County, TX | Oil & Gas Property | Sep 2025 |
| 373 | KAREN MATHEWS ETAL | Clearfield County, PA | Gas Property | Dec 2024 |
| 374 | KAREN MICHELLE 13-24H | Mountrail County, ND | Oil & Gas Property | Oct 2025 |
| 375 | KAREN O FOERTSCH | Butler County, PA | Gas Property | Sep 2025 |
| 376 | KAREN WHEELER | McMullen County, TX | Oil & Gas Property | Sep 2025 |
| 377 | KARGL | Martin County, TX | Oil & Gas Property | Sep 2025 |
| 378 | KARHOFF | Anderson County, KS | Oil Property | Jun 2025 |
| 379 | KARI | Pottawatomie County, OK | Oil Property | Aug 2006 |
| 380 | KARI 1-19H | Williams County, ND | Oil & Gas Property | Oct 2025 |
| 381 | KARI 11-13TFH | Mountrail County, ND | Oil & Gas Property | Oct 2025 |
| 382 | KARI 30-19 | Williams County, ND | Oil & Gas Property | Oct 2025 |
| 383 | KARICKHOFF | Upshur County, WV | Gas Property | Dec 2021 |
| 384 | KARIKER LUMBER COMPANY | Hardin County, TX | Oil & Gas Property | Nov 2019 |
| 385 | KARIN 2513 | Woods County, OK | Oil & Gas Property | Sep 2025 |
| 386 | KARINO 48-19-30 | Pecos County, TX | Oil & Gas Property | Sep 2025 |
| 387 | KARISCH ROY | Fayette County, TX | Oil & Gas Property | Sep 2025 |
| 388 | KARISSA STATE | Terrell County, TX | Oil & Gas Property | Sep 2025 |
| 389 | KARL | Cattaraugus County, NY | Oil & Gas Property | Dec 2024 |
| 390 | KARL 1-8 | Sumner County, KS | Oil Property | Jun 2025 |
| 391 | KARL 1H | Dewitt County, TX | Oil & Gas Property | Sep 2025 |
| 392 | KARL LIGHTCAP, ET | Indiana County, PA | Gas Property | Dec 2024 |
| 393 | KARL S LIGHTCAP | Indiana County, PA | Gas Property | Dec 2024 |
| 394 | KARL SUMMER | Columbiana County, OH | Oil & Gas Property | Dec 2024 |
| 395 | KARL UT 16-19 4-1 | Duchesne County, UT | Oil & Gas Property | Sep 2025 |
| 396 | KARL VADDER | Kingfisher County, OK | Oil & Gas Property | Oct 2025 |
| 397 | KARL WILL | Kingfisher County, OK | Oil & Gas Property | Sep 2025 |
| 398 | KARL WILL | Jefferson County, KS | Oil & Gas Property | Dec 2017 |
| 399 | KARLA | Pottawatomie County, OK | Oil Property | Mar 1991 |
| 400 | KARLBERG 14-12H | Divide County, ND | Oil & Gas Property | Oct 2025 |