| 4401 | KUPARUK RIV UNIT 3B | Beechey Point Quadrangle, AK | Oil & Gas Property | Jun 2025 |
| 4402 | KUPARUK RIV UNIT 3N | Beechey Point Quadrangle, AK | Oil & Gas Property | Jun 2025 |
| 4403 | KUPETSKY WYO | Wyoming County, PA | Gas Property | May 2025 |
| 4404 | KUPP | Eastland County, TX | Oil & Gas Property | Oct 2024 |
| 4405 | KUPPER | Dunn County, ND | Oil & Gas Property | May 2025 |
| 4406 | KUPPETZ | Trego County, KS | Oil Property | Mar 2025 |
| 4407 | KUPPETZ | Trego County, KS | Oil Property | Jan 2025 |
| 4408 | KUPSCZNK UNIT | Susquehanna County, PA | Gas Property | May 2025 |
| 4409 | KURATI | Waller County, TX | Oil & Gas Property | Feb 2025 |
| 4410 | KURATTI | Waller County, TX | Oil & Gas Property | Apr 2025 |
| 4411 | KUREK, E | Cattaraugus County, NY | Gas Property | Dec 2024 |
| 4412 | KURIO | Lee County, TX | Oil & Gas Property | Mar 2025 |
| 4413 | KURIO UNIT | Lee County, TX | Oil & Gas Property | Dec 2016 |
| 4414 | KURIP 1 | Uintah County, UT | Oil & Gas Property | May 2025 |
| 4415 | KURK | Young County, TX | Oil & Gas Property | Apr 2025 |
| 4416 | KURK PEARL T | Young County, TX | Oil & Gas Property | Apr 2025 |
| 4417 | KURK WILLIAM | Young County, TX | Oil & Gas Property | Apr 2025 |
| 4418 | KURLAND | Eddy County, NM | Oil & Gas Property | May 2025 |
| 4419 | KURT H HAUFLER A | Lycoming County, PA | Gas Property | May 2025 |
| 4420 | KURTEN WOODBINE UNIT | Brazos County, TX | Oil & Gas Property | Apr 2025 |
| 4421 | KURTEN, MILTON | Brazos County, TX | Oil & Gas Property | Apr 2025 |
| 4422 | KURTH | Angelina County, TX | Oil & Gas Property | Apr 2025 |
| 4423 | KURTH J.H. JR | Newton County, TX | Oil & Gas Property | Apr 2025 |
| 4424 | KURTH J.H. JR. TRUSTEE ET AL | Newton County, TX | Oil & Gas Property | Mar 2025 |
| 4425 | KURTH UNIT | Belmont County, OH | Gas Property | Mar 2025 |
| 4426 | KURTIS | Montgomery County, KS | Oil Property | Jul 2024 |
| 4427 | KURTZ | Runnels County, TX | Oil & Gas Property | Apr 2025 |
| 4428 | KURTZ | Lawrence County, PA | Gas Property | Dec 2024 |
| 4429 | KURTZ | Lawrence County, PA | Oil & Gas Property | Dec 2024 |
| 4430 | KURTZ | Bowman County, ND | Oil & Gas Property | May 2025 |
| 4431 | KURTZ | Nowata County, OK | Oil & Gas Property | Apr 1996 |
| 4432 | KURTZ | Holmes County, OH | Oil & Gas Property | Dec 2024 |
| 4433 | KURTZ 1 | Blaine County, OK | Oil & Gas Property | Apr 2025 |
| 4434 | KURTZ EAST UNIT | Monroe County, OH | Oil & Gas Property | Mar 2025 |
| 4435 | KURTZ UNIT | Monroe County, OH | Oil & Gas Property | Mar 2025 |
| 4436 | KURTZ, WILLIAM | Union County, KY | Oil Property | Apr 2022 |
| 4437 | KURUTZ UNIT 1 | Fayette County, PA | Gas Property | May 2025 |
| 4438 | KURZ | Bexar County, TX | Oil & Gas Property | Apr 2025 |
| 4439 | KURZ | Kearny County, KS | Gas Property | Mar 2025 |
| 4440 | KURZ BEE T | Bexar County, TX | Oil & Gas Property | Apr 2025 |
| 4441 | KUSAK | Gonzales County, TX | Oil & Gas Property | Mar 2025 |
| 4442 | KUSCH | Major County, OK | Oil & Gas Property | Oct 2017 |
| 4443 | KUSEK | Oklahoma County, OK | Oil & Gas Property | Mar 2025 |
| 4444 | KUSHEQUA | McKean County, PA | Oil & Gas Property | Dec 2024 |
| 4445 | KUSHMAUL | Duchesne County, UT | Oil & Gas Property | May 2025 |
| 4446 | KUSIK | Kingfisher County, OK | Oil & Gas Property | Jun 2017 |
| 4447 | KUTCH | Parker County, TX | Oil & Gas Property | Apr 2025 |
| 4448 | KUTCH GEORGE GAS UNIT | Gregg County, TX | Oil & Gas Property | Apr 2025 |
| 4449 | KUTCHER 31-27H | Dunn County, ND | Oil & Gas Property | May 2025 |
| 4450 | KUTEK | Fayette County, PA | Gas Property | Dec 2024 |
| 4451 | KUTNER | Ellis County, TX | Gas Property | Apr 2025 |
| 4452 | KUTSCHERENKO | Morgan County, OH | Oil & Gas Property | Dec 2018 |
| 4453 | KUTTLER | Greeley County, KS | Gas Property | Sep 2019 |
| 4454 | KUTZ | Okmulgee County, OK | Oil Property | Feb 2024 |
| 4455 | KUTZ 29 9 19 | San Juan County, NM | Oil & Gas Property | May 2025 |
| 4456 | KUTZ CANYON | San Juan County, NM | Oil & Gas Property | May 2025 |
| 4457 | KUTZ DEEP | San Juan County, NM | Oil & Gas Property | May 2025 |
| 4458 | KUTZ FEDERAL | San Juan County, NM | Oil & Gas Property | May 2025 |
| 4459 | KUTZ GOVT | San Juan County, NM | Gas Property | May 2025 |
| 4460 | KUTZ J FEDERAL | San Juan County, NM | Oil & Gas Property | May 2025 |
| 4461 | KUTZSCHBACH-LANGFORD UNIT | Brazos County, TX | Oil & Gas Property | Mar 2025 |
| 4462 | KUYKENDALL | Moffat County, CO | Oil & Gas Property | May 2025 |
| 4463 | KUYKENDALL | Andrews County, TX | Oil & Gas Property | Apr 2025 |
| 4464 | KUYKENDALL | Van Buren County, AR | Gas Property | Jun 2024 |
| 4465 | KUYKENDALL | McMullen County, TX | Oil & Gas Property | Apr 2025 |
| 4466 | KUYKENDALL | McMullen County, TX | Oil & Gas Property | Mar 2025 |
| 4467 | KUYKENDALL 34-31 | McKenzie County, ND | Oil & Gas Property | May 2025 |
| 4468 | KUYKENDALL ESTATE | Webster County, KY | Oil Property | Dec 2021 |
| 4469 | KUYKENDALL R. E | Rusk County, TX | Oil & Gas Property | Apr 2025 |
| 4470 | KUZEL | Garfield County, OK | Oil & Gas Property | May 2025 |
| 4471 | KUZIAK UNIT | Sullivan County, PA | Gas Property | May 2025 |
| 4472 | KVASNICA | Caddo County, OK | Oil & Gas Property | Apr 2025 |
| 4473 | KVG-KING ALLOC | San Augustine County, TX | Gas Property | Apr 2025 |
| 4474 | KVG-KNOX ALLOC | San Augustine County, TX | Gas Property | Apr 2025 |
| 4475 | KWB UNIT | Tom Green County, TX | Oil & Gas Property | Nov 2023 |
| 4476 | KWIATKOWSKI | Ottawa County, MI | Oil Property | Apr 2025 |
| 4477 | KWS UNIT | Johnson County, TX | Oil & Gas Property | Apr 2025 |
| 4478 | KY BERWIND LAND CO 2 | Pike County, KY | Gas Property | Dec 2023 |
| 4479 | KY BLUE | Weld County, CO | Oil & Gas Property | Dec 2019 |
| 4480 | KY WEST VA GAS | Pike County, KY | Gas Property | Dec 2023 |
| 4481 | KY WV GAS CO | Pike County, KY | Oil & Gas Property | Dec 2023 |
| 4482 | KY WVA COAL & MINING CO | Harlan County, KY | Oil & Gas Property | Dec 2023 |
| 4483 | KY-WVA GAS | Pike County, KY | Oil & Gas Property | Dec 2023 |
| 4484 | KYBER | Lavaca County, TX | Oil & Gas Property | Apr 2025 |
| 4485 | KYCOGA COMPANY LLC | Letcher County, KY | Oil & Gas Property | Dec 2023 |
| 4486 | KYCOGA LAND CO | Knott County, KY | Oil & Gas Property | Dec 2023 |
| 4487 | KYCOGA LAND CO | Knott County, KY | Gas Property | Dec 2023 |
| 4488 | KYCOGA LAND CO | Letcher County, KY | Oil & Gas Property | Dec 2023 |
| 4489 | KYCOGA LAND CO | Floyd County, KY | Oil & Gas Property | Dec 2023 |
| 4490 | KYCOGA LAND CO | Leslie County, KY | Oil & Gas Property | Dec 2023 |
| 4491 | KYCOGA LAND CO | Letcher County, KY | Oil & Gas Property | Dec 2023 |
| 4492 | KYCOGA LAND CO | Knott County, KY | Oil & Gas Property | Dec 2023 |
| 4493 | KYDD | Martin County, TX | Oil & Gas Property | Apr 2025 |
| 4494 | KYE 44-31H | Dunn County, ND | Oil & Gas Property | May 2025 |
| 4495 | KYLA | Midland County, TX | Oil & Gas Property | Mar 2025 |
| 4496 | KYLA | Midland County, TX | Oil & Gas Property | Mar 2025 |
| 4497 | KYLANDER | Warren County, PA | Oil & Gas Property | Dec 2024 |
| 4498 | KYLE | Tarrant County, TX | Gas Property | Apr 2025 |
| 4499 | KYLE | Panola County, TX | Oil & Gas Property | Apr 2025 |
| 4500 | KYLE | Carson County, TX | Oil & Gas Property | Mar 2019 |