| 3901 | APPLEGATE | Kearny County, KS | Gas Property | Sep 2025 |
| 3902 | APPLEGATE 56-77-2 | Sheridan County, WY | Gas Property | Oct 2013 |
| 3903 | APPLEHANS A | Wilson County, KS | Gas Property | Feb 2017 |
| 3904 | APPLEMAN | Grant County, KS | Oil Property | Sep 2025 |
| 3905 | APPLEMAN 'A' | Butler County, KS | Oil Property | Jul 2025 |
| 3906 | APPLEMAN G | Muskingum County, OH | Gas Property | Dec 2024 |
| 3907 | APPLEMAN MAUNE | Finney County, KS | Oil & Gas Property | Sep 2025 |
| 3908 | APPLESEED 17 | Lea County, NM | Oil & Gas Property | Dec 2025 |
| 3909 | APPLETON | McCulloch County, TX | Oil Property | Nov 2025 |
| 3910 | APPLETON | Rice County, KS | Oil Property | Sep 2025 |
| 3911 | APPLETON 00 | Indiana County, PA | Gas Property | Dec 2024 |
| 3912 | APPLETON 1 | Harper County, OK | Oil & Gas Property | Jun 2023 |
| 3913 | APPLETON EAST UNIT C20-9 1H | Reeves County, TX | Oil & Gas Property | Nov 2025 |
| 3914 | APPLETON UNIT | Escambia County, AL | Oil & Gas Property | Sep 2025 |
| 3915 | APPLETON WEST UNIT C20-9 1H | Reeves County, TX | Oil & Gas Property | Nov 2025 |
| 3916 | APPLEWHITE | Bexar County, TX | Oil & Gas Property | Nov 2025 |
| 3917 | APPLING | La Salle County, TX | Oil & Gas Property | Nov 2025 |
| 3918 | APPLING | Jones County, TX | Oil & Gas Property | Dec 2020 |
| 3919 | APPLING | Guadalupe County, TX | Oil & Gas Property | Nov 2025 |
| 3920 | APPLING | Guadalupe County, TX | Oil & Gas Property | Nov 2025 |
| 3921 | APPLING C | Guadalupe County, TX | Oil & Gas Property | Nov 2025 |
| 3922 | APPLING O. J | Wise County, TX | Oil & Gas Property | Nov 2025 |
| 3923 | APPLING PSA | La Salle County, TX | Gas Property | Nov 2025 |
| 3924 | APPLING ST | Weston County, WY | Oil Property | Aug 2018 |
| 3925 | APPOLD | Tioga County, PA | Gas Property | Nov 2025 |
| 3926 | APRES VOUS | Ward County, TX | Oil & Gas Property | Oct 2025 |
| 3927 | APRES VOUS 24_13-14N-8W | Canadian County, OK | Oil & Gas Property | Oct 2025 |
| 3928 | APRICOT 03 | Mountrail County, ND | Oil & Gas Property | Dec 2025 |
| 3929 | APRIL | Woods County, OK | Oil & Gas Property | Oct 2025 |
| 3930 | APRIL FEDERAL | Chaves County, NM | Gas Property | Aug 2025 |
| 3931 | APRIL SURPRISE | San Juan County, NM | Oil & Gas Property | Nov 2025 |
| 3932 | APSLEY | Haskell County, KS | Oil Property | Jun 2008 |
| 3933 | APU UNIT | Somervell County, TX | Oil & Gas Property | Nov 2025 |
| 3934 | AQUAMARINE | Gonzales County, TX | Oil & Gas Property | Nov 2025 |
| 3935 | AQUAMARINE STATE | Lea County, NM | Oil & Gas Property | Nov 2025 |
| 3936 | AQUEDUCT | Los Angeles County, CA | Oil Property | Jan 1994 |
| 3937 | AQUILA 13-24 | Dawson County, TX | Oil & Gas Property | Nov 2025 |
| 3938 | AQUILA 22 FEDERAL | Eddy County, NM | Oil & Gas Property | Nov 2025 |
| 3939 | AR BRADEN 56 | Forest County, PA | Gas Property | Dec 2024 |
| 3940 | AR FEDERAL 1 | Carbon County, WY | Gas Property | Aug 2025 |
| 3941 | AR FEDERAL 1 | Carbon County, WY | Gas Property | Jun 2023 |
| 3942 | AR FEDERAL 1491 | Carbon County, WY | Gas Property | Dec 2008 |
| 3943 | AR FEE 1 | Carbon County, WY | Gas Property | Aug 2025 |
| 3944 | AR FEE 1791 | Carbon County, WY | Gas Property | Aug 2025 |
| 3945 | AR-JO MCCOMAS | Grady County, OK | Oil & Gas Property | Oct 2025 |
| 3946 | ARA 36 | Texas County, OK | Oil & Gas Property | Dec 2002 |
| 3947 | ARABIA | Okfuskee County, OK | Oil & Gas Property | Sep 2000 |
| 3948 | ARABIAN | Frio County, TX | Oil & Gas Property | Nov 2025 |
| 3949 | ARABIAN 149-93-29B-32H | Dunn County, ND | Oil & Gas Property | Dec 2025 |
| 3950 | ARABIAN 3 | Andrews County, TX | Oil & Gas Property | Nov 2025 |
| 3951 | ARABIAN 30 1 | Lea County, NM | Oil & Gas Property | Nov 2025 |
| 3952 | ARABIAN 4-4-18-17-7H | Duchesne County, UT | Oil & Gas Property | Nov 2025 |
| 3953 | ARABIAN 6 FEE | Eddy County, NM | Oil & Gas Property | Nov 2025 |
| 3954 | ARABIAN FED | San Juan County, UT | Oil & Gas Property | Aug 2021 |
| 3955 | ARACELI | Zapata County, TX | Oil & Gas Property | Nov 2025 |
| 3956 | ARAGOG FEE | Kern County, CA | Oil & Gas Property | Dec 2025 |
| 3957 | ARAM | Hutchinson County, TX | Oil & Gas Property | Oct 2017 |
| 3958 | ARANA UNIT | Brazos County, TX | Oil & Gas Property | Oct 2025 |
| 3959 | ARANGO UNIT 1H | Johnson County, TX | Gas Property | Nov 2025 |
| 3960 | ARANSAS 11 FEDERAL | Eddy County, NM | Oil & Gas Property | Nov 2025 |
| 3961 | ARAPAHO "22" | Roger Mills County, OK | Oil & Gas Property | Oct 2025 |
| 3962 | ARAPAHOE | Cheyenne County, CO | Oil & Gas Property | Dec 2024 |
| 3963 | ARAPAHOE | Burleson County, TX | Oil & Gas Property | Oct 2025 |
| 3964 | ARAPAHOE | Boulder County, CO | Oil & Gas Property | Dec 2024 |
| 3965 | ARAPAHOE 3526 | Campbell County, WY | Oil & Gas Property | Dec 2025 |
| 3966 | ARATA | Santa Barbara County, CA | Oil & Gas Property | Dec 2025 |
| 3967 | ARBALEST | Converse County, WY | Oil & Gas Property | Dec 2025 |
| 3968 | ARBALEST | Converse County, WY | Oil & Gas Property | Dec 2025 |
| 3969 | ARBAUGH | Harrison County, OH | Oil & Gas Property | Sep 2025 |
| 3970 | ARBOGAST | Linn County, KS | Oil Property | Nov 1992 |
| 3971 | ARBOGAST | Woodward County, OK | Oil & Gas Property | Oct 2025 |
| 3972 | ARBOGAST, E | Boone County, WV | Gas Property | Dec 2021 |
| 3973 | ARBOGAST, MICHAEL E | Lewis County, WV | Oil & Gas Property | Nov 2021 |
| 3974 | ARBOGAST, MYRTLE | Lewis County, WV | Oil & Gas Property | Dec 2021 |
| 3975 | ARBOL | Pecos County, TX | Oil & Gas Property | Nov 2025 |
| 3976 | ARBOLES 2 | Rio Arriba County, NM | Gas Property | Nov 2025 |
| 3977 | ARBOR | San Juan County, NM | Gas Property | Nov 2025 |
| 3978 | ARBUCKLE | Gilmer County, WV | Oil & Gas Property | Dec 2021 |
| 3979 | ARBUCKLE | Colusa County, CA | Gas Property | Dec 2025 |
| 3980 | ARBUCKLE | Rice County, KS | Oil Property | Jun 2023 |
| 3981 | ARBUCKLE | Rice County, KS | Oil Property | Aug 2025 |
| 3982 | ARBUCKLE | Colusa County, CA | Gas Property | Nov 2013 |
| 3983 | ARBUCKLE | Elk County, KS | Oil Property | Sep 2025 |
| 3984 | ARBUCKLE HEIRS | Sebastian County, AR | Gas Property | Jun 2024 |
| 3985 | ARBUCKLE, ERNEST | Gilmer County, WV | Oil & Gas Property | Dec 2021 |
| 3986 | ARBUCKLE, ERNEST | Gilmer County, WV | Oil & Gas Property | Dec 2021 |
| 3987 | ARBUTHNOT | Haskell County, KS | Oil & Gas Property | Mar 2022 |
| 3988 | ARC - THOMSON - BARROW | Bee County, TX | Oil & Gas Property | Nov 2025 |
| 3989 | ARC-CALL & JONES | Newton County, TX | Oil & Gas Property | Oct 2025 |
| 3990 | ARC-ETTA TERRELL UNIT | Victoria County, TX | Oil & Gas Property | Nov 2025 |
| 3991 | ARCADIA | Indiana County, PA | Gas Property | Dec 2024 |
| 3992 | ARCADIA A UNIT | Dawson County, TX | Oil & Gas Property | Nov 2025 |
| 3993 | ARCADIO | Hidalgo County, TX | Oil & Gas Property | Nov 2025 |
| 3994 | ARCANGUES | Stephens County, OK | Oil & Gas Property | Sep 2025 |
| 3995 | ARCH | Ford County, KS | Oil Property | Sep 2025 |
| 3996 | ARCH | Campbell County, WY | Gas Property | Dec 2009 |
| 3997 | ARCH | Karnes County, TX | Oil & Gas Property | Nov 2025 |
| 3998 | ARCH BENGE | Midland County, TX | Oil & Gas Property | Nov 2025 |
| 3999 | ARCH CHEMCIALS | Meade County, KY | Gas Property | Dec 2018 |
| 4000 | ARCH CHEMICAL | Meade County, KY | Gas Property | Dec 2018 |