| 401 | KARL LIGHTCAP, ET | Indiana County, PA | Gas Property | Dec 2025 |
| 402 | KARL S LIGHTCAP | Indiana County, PA | Gas Property | Dec 2025 |
| 403 | KARL SUMMER | Columbiana County, OH | Oil & Gas Property | Dec 2024 |
| 404 | KARL UT 16-19 4-1 | Duchesne County, UT | Oil & Gas Property | Dec 2025 |
| 405 | KARL VADDER | Kingfisher County, OK | Oil & Gas Property | Nov 2025 |
| 406 | KARL WILL | Kingfisher County, OK | Oil & Gas Property | Dec 2025 |
| 407 | KARL WILL | Jefferson County, KS | Oil & Gas Property | Dec 2017 |
| 408 | KARLA | Pottawatomie County, OK | Oil Property | Mar 1991 |
| 409 | KARLBERG 14-12H | Divide County, ND | Oil & Gas Property | Dec 2025 |
| 410 | KARLBERG STATE 36-4 | Weld County, CO | Oil & Gas Property | Apr 2017 |
| 411 | KARLEEN | Russell County, KS | Oil Property | Jul 2025 |
| 412 | KARLEN | Mahoning County, OH | Oil & Gas Property | Dec 2024 |
| 413 | KARLIN | Ellis County, KS | Oil Property | Sep 2025 |
| 414 | KARLIN | Ellis County, KS | Oil Property | Aug 2025 |
| 415 | KARLIN | Ellis County, KS | Oil Property | Apr 2024 |
| 416 | KARLIN | Ellis County, KS | Oil Property | Sep 2025 |
| 417 | KARLIN | Caddo County, OK | Oil & Gas Property | Oct 2025 |
| 418 | KARLSBAD CORRAL | Eddy County, NM | Oil & Gas Property | Dec 2025 |
| 419 | KARLSEN | Seneca County, NY | Gas Property | Dec 2024 |
| 420 | KARMALI | Tarrant County, TX | Gas Property | Jul 2023 |
| 421 | KARMAN | Yellowstone County, MT | Oil Property | Jun 2023 |
| 422 | KARMANN | Woodson County, KS | Oil Property | Nov 2023 |
| 423 | KARMAZIN | Susquehanna County, PA | Gas Property | Dec 2025 |
| 424 | KARMEN USA 44-11TFH | Dunn County, ND | Oil & Gas Property | Dec 2025 |
| 425 | KARMIN | Dewey County, OK | Oil & Gas Property | Nov 2025 |
| 426 | KARNACK | Marion County, TX | Oil & Gas Property | Oct 2025 |
| 427 | KARNEI NORMAN | Goliad County, TX | Oil & Gas Property | Nov 2025 |
| 428 | KARNES | Karnes County, TX | Oil & Gas Property | Nov 2025 |
| 429 | KARNES | Lipscomb County, TX | Oil & Gas Property | Nov 2025 |
| 430 | KARNES | Sutton County, TX | Oil & Gas Property | Nov 2025 |
| 431 | KARNES | Caddo County, OK | Oil Property | Oct 2025 |
| 432 | KARNES CITY | Karnes County, TX | Oil & Gas Property | Nov 2025 |
| 433 | KARNES CITY N | Karnes County, TX | Oil & Gas Property | Nov 2025 |
| 434 | KARNES J.D | Wise County, TX | Oil & Gas Property | Nov 2025 |
| 435 | KARNES-PORTER | Wise County, TX | Oil & Gas Property | Nov 2025 |
| 436 | KARNS | Blaine County, OK | Oil & Gas Property | Feb 2022 |
| 437 | KARON | Live Oak County, TX | Oil & Gas Property | Nov 2025 |
| 438 | KARON LULING UNIT | Live Oak County, TX | Oil & Gas Property | Nov 2025 |
| 439 | KARP | Indiana County, PA | Gas Property | Dec 2025 |
| 440 | KARPE | Kern County, CA | Oil & Gas Property | Nov 2025 |
| 441 | KARRAKER GAS UNIT | Robertson County, TX | Oil & Gas Property | Nov 2025 |
| 442 | KARREN TRUST 4-30C4 | Duchesne County, UT | Oil & Gas Property | Dec 2025 |
| 443 | KARRENBROCK 1 | Kingfisher County, OK | Oil & Gas Property | Jul 2025 |
| 444 | KARSHNER | Hocking County, OH | Oil Property | Dec 1989 |
| 445 | KARSON KONNER 1 | Kingfisher County, OK | Oil & Gas Property | Nov 2025 |
| 446 | KARST | Barton County, KS | Oil Property | Dec 2024 |
| 447 | KARST | McKenzie County, ND | Oil & Gas Property | Dec 2025 |
| 448 | KARST | Russell County, KS | Oil Property | Aug 1987 |
| 449 | KARST | Russell County, KS | Oil Property | Mar 1983 |
| 450 | KARST | Barton County, KS | Oil Property | May 2025 |
| 451 | KARST | Barton County, KS | Oil Property | Sep 2025 |
| 452 | KARSTEN 1 | Canadian County, OK | Oil & Gas Property | Nov 2025 |
| 453 | KARSTETER | Payne County, OK | Oil Property | Nov 2025 |
| 454 | KARY | Dunn County, ND | Oil & Gas Property | Dec 2025 |
| 455 | KARY 11-17H | Dunn County, ND | Oil & Gas Property | Dec 2025 |
| 456 | KARYN | Beaver County, OK | Oil & Gas Property | Oct 2025 |
| 457 | KAS NORTH UNIT A | Karnes County, TX | Oil & Gas Property | Nov 2025 |
| 458 | KAS UNIT | Karnes County, TX | Oil & Gas Property | Nov 2025 |
| 459 | KASABACK H1 | McKean County, PA | Oil & Gas Property | Dec 2024 |
| 460 | KASAL | Johnson County, TX | Oil & Gas Property | Nov 2025 |
| 461 | KASAL TRUST UNIT | Johnson County, TX | Oil & Gas Property | Nov 2025 |
| 462 | KASER | Texas County, OK | Oil & Gas Property | Nov 2025 |
| 463 | KASETA | Belmont County, OH | Gas Property | Sep 2025 |
| 464 | KASH, E T | Morgan County, KY | Gas Property | Dec 2008 |
| 465 | KASHMIR | Upton County, TX | Oil & Gas Property | Nov 2025 |
| 466 | KASHMIR | Grady County, OK | Oil & Gas Property | Nov 2025 |
| 467 | KASHMIR 3 | Yoakum County, TX | Oil & Gas Property | Nov 2025 |
| 468 | KASILOF | Kenai Quadrangle, AK | Gas Property | Apr 2014 |
| 469 | KASLER | Athens County, OH | Gas Property | Dec 2024 |
| 470 | KASNER | Coshocton County, OH | Oil & Gas Property | Dec 2024 |
| 471 | KASPAR | Fayette County, TX | Oil & Gas Property | Jan 2017 |
| 472 | KASPAREK | Alfalfa County, OK | Oil & Gas Property | Nov 2025 |
| 473 | KASPAREK TRUST 21-27-12 1H | Alfalfa County, OK | Oil & Gas Property | Nov 2025 |
| 474 | KASPAREK, J | Fort Bend County, TX | Oil & Gas Property | Oct 2021 |
| 475 | KASPER | Billings County, ND | Oil & Gas Property | Dec 2025 |
| 476 | KASPER | Noble County, OK | Oil & Gas Property | Oct 2025 |
| 477 | KASPER | Lee County, TX | Oil & Gas Property | Oct 2025 |
| 478 | KASPER | Beaver County, OK | Oil & Gas Property | Dec 2024 |
| 479 | KASPER 2015 | Major County, OK | Oil & Gas Property | Nov 2025 |
| 480 | KASPER UNIT | Gonzales County, TX | Oil & Gas Property | Nov 2025 |
| 481 | KASPER UNIT | Atascosa County, TX | Oil & Gas Property | Nov 2025 |
| 482 | KASPER, FRED | Fayette County, TX | Oil & Gas Property | Sep 2025 |
| 483 | KASPERLIK | Ottawa County, MI | Oil Property | Nov 2025 |
| 484 | KASS 1 | Susquehanna County, PA | Gas Property | Dec 2025 |
| 485 | KASS 1 | Roger Mills County, OK | Oil & Gas Property | Nov 2025 |
| 486 | KASSAY, NEHEMIAH | Monongalia County, WV | Gas Property | Dec 2021 |
| 487 | KASSELMAN | Stafford County, KS | Oil Property | Sep 2025 |
| 488 | KASSERMAN | Wayne County, OH | Oil & Gas Property | Dec 2024 |
| 489 | KASSIDY | Upton County, TX | Oil & Gas Property | Nov 2025 |
| 490 | KASSIK | Alfalfa County, OK | Oil & Gas Property | Nov 2015 |
| 491 | KASSIK | Alfalfa County, OK | Oil & Gas Property | Nov 2025 |
| 492 | KASSNER ENERGY MANAGEMENT LLC | McMullen County, TX | Oil & Gas Property | Apr 2024 |
| 493 | KAST | Washita County, OK | Oil & Gas Property | Oct 2025 |
| 494 | KAST TRUST | Washita County, OK | Oil & Gas Property | Nov 2025 |
| 495 | KASTENS | Hitchcock County, NE | Oil Property | Dec 2024 |
| 496 | KASTENS | Rawlins County, KS | Oil Property | Jul 2025 |
| 497 | KASTL | Canadian County, OK | Oil & Gas Property | Nov 2025 |
| 498 | KASTMAN OIL COMPANY LLC | Lubbock County, TX | Oil & Gas Property | Nov 2025 |
| 499 | KASTON | Toole County, MT | Oil Property | Dec 2025 |
| 500 | KASTON FEDERAL COM | Lea County, NM | Oil & Gas Property | Dec 2025 |