| 4001 | ARDINGER | Wise County, TX | Oil & Gas Property | Jan 2025 |
| 4002 | ARDIS | Bossier Parish, LA | Oil & Gas Property | May 1990 |
| 4003 | ARDIS | De Soto Parish, LA | Oil & Gas Property | Mar 1995 |
| 4004 | ARDIS & | Caddo Parish, LA | Oil Property | Nov 2024 |
| 4005 | ARDIS C | Bossier Parish, LA | Oil & Gas Property | Jan 2025 |
| 4006 | ARDITH 4-E | Seward County, KS | Oil & Gas Property | Jan 2024 |
| 4007 | ARDITI | Dewitt County, TX | Oil & Gas Property | Jan 2025 |
| 4008 | ARDMORE | Carter County, OK | Oil & Gas Property | Jan 2025 |
| 4009 | ARDMORE AIRPORT | Carter County, OK | Oil & Gas Property | Jan 2025 |
| 4010 | ARDMORE FOUNDRY 1-7H | Carter County, OK | Oil & Gas Property | Jan 2025 |
| 4011 | ARDOUREL 33081718 | La Plata County, CO | Gas Property | Jan 2025 |
| 4012 | ARDREY | Stafford County, KS | Oil Property | Dec 2024 |
| 4013 | ARDREY | Clark County, KS | Oil Property | Jun 2024 |
| 4014 | ARE W | Summit County, UT | Oil & Gas Property | Feb 2025 |
| 4015 | ARELLANES | Santa Barbara County, CA | Oil & Gas Property | Feb 2023 |
| 4016 | ARELLANO | Weld County, CO | Oil & Gas Property | Jan 2025 |
| 4017 | ARENA A | Ward County, TX | Oil & Gas Property | Jan 2025 |
| 4018 | ARENA ROJA | Dimmit County, TX | Oil & Gas Property | Jan 2025 |
| 4019 | ARENA ROJA 15 10 FEDERAL UNIT | Lea County, NM | Oil & Gas Property | Jan 2025 |
| 4020 | ARENA ROJA 28 33 FEDERAL COM | Lea County, NM | Oil & Gas Property | Jan 2025 |
| 4021 | ARENA ROJA FEDERAL UNIT | Lea County, NM | Oil & Gas Property | Jan 2025 |
| 4022 | ARENA, ANNETTE & G J | Knox County, KY | Gas Property | Dec 2022 |
| 4023 | ARENOSO 22 FEDERAL | Eddy County, NM | Oil & Gas Property | Dec 2024 |
| 4024 | ARENS | Weld County, CO | Oil & Gas Property | Sep 2024 |
| 4025 | ARENSMAN | Barton County, KS | Oil Property | Dec 2024 |
| 4026 | ARENSMAN | Rice County, KS | Oil Property | Dec 2024 |
| 4027 | ARENT | Ouachita Parish, LA | Gas Property | Nov 2024 |
| 4028 | AREQUIPA | Kern County, CA | Oil Property | Jul 1986 |
| 4029 | ARES 27-26 UNIT | Martin County, TX | Oil & Gas Property | Jan 2025 |
| 4030 | ARES 4 STATE | Lea County, NM | Oil & Gas Property | Jan 2025 |
| 4031 | ARES STATE | Lea County, NM | Oil & Gas Property | Apr 1999 |
| 4032 | ARESTIDE BROUSSARD | Vermilion Parish, LA | Oil & Gas Property | Oct 1997 |
| 4033 | ARFEDERAL 1591 | Carbon County, WY | Gas Property | Apr 2019 |
| 4034 | ARFEDERAL 1791 | Carbon County, WY | Gas Property | Jan 2025 |
| 4035 | ARFEE 1791 | Carbon County, WY | Gas Property | Jan 2025 |
| 4036 | ARGABRIGHT 1-4 | Rawlins County, KS | Oil Property | Dec 2024 |
| 4037 | ARGENT BARKSDALE 29-17 | Howard County, TX | Oil & Gas Property | Jan 2025 |
| 4038 | ARGENTA | La Plata County, CO | Gas Property | Feb 2025 |
| 4039 | ARGENTA 3 | La Plata County, CO | Gas Property | Jan 2025 |
| 4040 | ARGENTINE | Reeves County, TX | Oil & Gas Property | Jan 2025 |
| 4041 | ARGIE VAUGHN | Pittsburg County, OK | Gas Property | Jan 2025 |
| 4042 | ARGILLITE 147-93-08D-05H | Dunn County, ND | Oil & Gas Property | Feb 2025 |
| 4043 | ARGO | Lea County, NM | Oil & Gas Property | Jan 2025 |
| 4044 | ARGO | Andrews County, TX | Oil & Gas Property | Jan 2025 |
| 4045 | ARGO | Hughes County, OK | Gas Property | Oct 2018 |
| 4046 | ARGO | Andrews County, TX | Oil & Gas Property | Jan 2025 |
| 4047 | ARGO | Niobrara County, WY | Oil & Gas Property | Feb 2025 |
| 4048 | ARGO EVELEIGH | Barton County, KS | Oil Property | Dec 2024 |
| 4049 | ARGO KNIGHT | Andrews County, TX | Oil & Gas Property | Jan 2025 |
| 4050 | ARGO-MOSS | Ector County, TX | Oil & Gas Property | Dec 2024 |
| 4051 | ARGO-VEST | Winkler County, TX | Oil & Gas Property | Jan 2025 |
| 4052 | ARGOS FE | Converse County, WY | Oil & Gas Property | Jan 2025 |
| 4053 | ARGUS ENERGY | Lincoln County, WV | Oil & Gas Property | Dec 2021 |
| 4054 | ARHOPULOS | Brazos County, TX | Oil & Gas Property | Jan 2025 |
| 4055 | ARIA | Morris County, TX | Oil & Gas Property | Jan 2025 |
| 4056 | ARIANA | Comanche County, KS | Oil & Gas Property | Dec 2024 |
| 4057 | ARICK | Noble County, OH | Oil & Gas Property | Dec 2024 |
| 4058 | ARICK | Midland County, TX | Oil & Gas Property | Jan 2025 |
| 4059 | ARICK-HOOPER UNIT | Midland County, TX | Oil & Gas Property | Jan 2025 |
| 4060 | ARICK-S | Midland County, TX | Oil & Gas Property | Jan 2025 |
| 4061 | ARIEL | Hughes County, OK | Oil & Gas Property | Jan 2025 |
| 4062 | ARIEL J 7 | Weld County, CO | Oil & Gas Property | Aug 2018 |
| 4063 | ARIES | Converse County, WY | Oil & Gas Property | Feb 2025 |
| 4064 | ARIES 19 IL FEDERAL COM | Eddy County, NM | Oil & Gas Property | Jan 2025 |
| 4065 | ARIES 20 FEDERAL COM | Eddy County, NM | Oil & Gas Property | Jan 2025 |
| 4066 | ARIES 20 MP FEDERAL COM | Eddy County, NM | Oil & Gas Property | Jan 2025 |
| 4067 | ARIKARA | McKenzie County, ND | Oil & Gas Property | Feb 2025 |
| 4068 | ARIKARA 15-22H | Mountrail County, ND | Oil & Gas Property | Feb 2025 |
| 4069 | ARIO CORP | Knott County, KY | Oil & Gas Property | Dec 2023 |
| 4070 | ARISTIDES | Culberson County, TX | Oil & Gas Property | Jan 2025 |
| 4071 | ARISTOCRAT | Weld County, CO | Oil & Gas Property | Feb 2025 |
| 4072 | ARITHSON | Bowman County, ND | Oil & Gas Property | Feb 2025 |
| 4073 | ARIZOLA PETROLEUM CO | Lasalle Parish, LA | Oil Property | Nov 2024 |
| 4074 | ARIZOLA-LA PETRO AS | Lasalle Parish, LA | Oil Property | Jan 2025 |
| 4075 | ARIZONA JICARILLA | Rio Arriba County, NM | Oil & Gas Property | Jan 2025 |
| 4076 | ARIZONA JICARILLA B | Rio Arriba County, NM | Oil & Gas Property | Jan 2025 |
| 4077 | ARK 21-15 | Williams County, ND | Oil & Gas Property | Feb 2025 |
| 4078 | ARK 36 STATE | Eddy County, NM | Oil & Gas Property | Jan 2025 |
| 4079 | ARK FUE | Caddo Parish, LA | Oil & Gas Property | Jan 2025 |
| 4080 | ARK FUEL OIL-ROBINSON FEE | Caddo Parish, LA | Oil & Gas Property | Jan 2025 |
| 4081 | ARK LAND | Kanawha County, WV | Oil & Gas Property | Dec 2021 |
| 4082 | ARK LAND 02-114372 | Campbell County, WY | Oil & Gas Property | Feb 2025 |
| 4083 | ARK LAND AL | Kanawha County, WV | Oil & Gas Property | Dec 2021 |
| 4084 | ARK LAND CO | Harlan County, KY | Oil & Gas Property | Dec 2023 |
| 4085 | ARK LAND CO | Letcher County, KY | Oil & Gas Property | Dec 2023 |
| 4086 | ARK LAND CO | Harlan County, KY | Oil & Gas Property | Dec 2023 |
| 4087 | ARK LAND COMPANY | Kanawha County, WV | Oil & Gas Property | Dec 2021 |
| 4088 | ARK LAND COMPANY | Logan County, WV | Gas Property | Dec 2021 |
| 4089 | ARK LAND COMPANY CARBIDE | Clay County, WV | Oil & Gas Property | Dec 2021 |
| 4090 | ARK LAND FED | Campbell County, WY | Oil & Gas Property | Feb 2025 |
| 4091 | ARK LAND KH BCC 97 | Logan County, WV | Gas Property | Jun 2011 |
| 4092 | ARKALON | Seward County, KS | Oil & Gas Property | Dec 2024 |
| 4093 | ARKANSAS | Conway County, AR | Gas Property | Jul 1986 |
| 4094 | ARKANSAS | Tarrant County, TX | Gas Property | Jan 2025 |
| 4095 | ARKANSAS 23 FEE | Eddy County, NM | Oil & Gas Property | Jan 2025 |
| 4096 | ARKANSAS 4-64 3-2 | Arapahoe County, CO | Oil & Gas Property | Jan 2025 |
| 4097 | ARKANSAS 8-67-33-4N | Weld County, CO | Oil & Gas Property | Jan 2025 |
| 4098 | ARKANSAS F | Caddo Parish, LA | Oil Property | Jan 2025 |
| 4099 | ARKANSAS KRAFT | Conway County, AR | Gas Property | Jul 2024 |
| 4100 | ARKANSAS KRAFT 1 | Latimer County, OK | Gas Property | Jan 2025 |