| 18001 | BYWATERS | Cass County, TX | Oil & Gas Property | May 2025 |
| 18002 | BYWATERS B. A | Wichita County, TX | Oil & Gas Property | May 2025 |
| 18003 | BYWATERS ESTATE | Sherman County, TX | Oil & Gas Property | May 2025 |
| 18004 | BYWATERS UNIT | Henderson County, TX | Oil & Gas Property | Apr 2025 |
| 18005 | C & A CLARKE | Allegany County, NY | Oil & Gas Property | Dec 2023 |
| 18006 | C & A TREES | Clarion County, PA | Gas Property | Dec 2024 |
| 18007 | C & B HARPSTER | Ashland County, OH | Oil Property | Dec 2007 |
| 18008 | C & C UNIT | Cheyenne County, KS | Oil Property | Apr 2025 |
| 18009 | C & D ALLEN | Union Parish, LA | Gas Property | Jul 2024 |
| 18010 | C & D PIATT | Monroe County, OH | Oil & Gas Property | Dec 2024 |
| 18011 | C & E BLACKBURN 15-20-25 1H | Ellis County, OK | Oil & Gas Property | Apr 2025 |
| 18012 | C & E TRUST | Trinity County, TX | Oil & Gas Property | Feb 2025 |
| 18013 | C & E UNIT | Tarrant County, TX | Oil & Gas Property | May 2025 |
| 18014 | C & F RANCH | Campbell County, WY | Gas Property | Jun 2017 |
| 18015 | C & F RANCH | Campbell County, WY | Gas Property | Feb 2012 |
| 18016 | C & H CORP | Nicholas County, WV | Oil & Gas Property | Dec 2021 |
| 18017 | C & K 1-1 | Rio Blanco County, CO | Gas Property | Jul 2022 |
| 18018 | C & K COAL | Clarion County, PA | Oil & Gas Property | Dec 2024 |
| 18019 | C & K COAL | Jefferson County, PA | Gas Property | Apr 2025 |
| 18020 | C & K COAL 1 | Clarion County, PA | Gas Property | Dec 2024 |
| 18021 | C & K COAL CO | Clarion County, PA | Oil & Gas Property | Dec 2024 |
| 18022 | C & K COAL CO | Clarion County, PA | Oil & Gas Property | Dec 2024 |
| 18023 | C & K UNIT | Clarion County, PA | Oil & Gas Property | Dec 2024 |
| 18024 | C & L FARMS | Warren County, KY | Oil Property | Dec 2022 |
| 18025 | C & W GAS UNIT NO. 1 | Limestone County, TX | Oil & Gas Property | May 2025 |
| 18026 | C 17 STATE | Eddy County, NM | Oil & Gas Property | May 2025 |
| 18027 | C A HAYES | Ellis County, OK | Oil & Gas Property | Aug 2023 |
| 18028 | C A MCADAMS | San Juan County, NM | Oil & Gas Property | May 2025 |
| 18029 | C A MCADAMS | San Juan County, NM | Oil & Gas Property | May 2025 |
| 18030 | C A MORRIS | Walthall County, MS | Oil & Gas Property | Oct 1977 |
| 18031 | C A OBERLIN HEIRS | Indiana County, PA | Gas Property | Dec 2024 |
| 18032 | C A PARDUE | Union Parish, LA | Gas Property | Dec 2024 |
| 18033 | C A RUSSELL | Eddy County, NM | Oil & Gas Property | May 2025 |
| 18034 | C A STEPHENS | Stephens County, OK | Oil & Gas Property | May 2025 |
| 18035 | C ADAM | Vermilion Parish, LA | Oil & Gas Property | Nov 2024 |
| 18036 | C ADAMS | Indiana County, PA | Gas Property | Dec 2024 |
| 18037 | C ALLEN G | Union Parish, LA | Gas Property | Mar 2023 |
| 18038 | C AND H LAND | Decatur County, KS | Oil Property | Apr 2025 |
| 18039 | C AND S SHULTZ | Montgomery County, KS | Gas Property | Apr 2025 |
| 18040 | C ANDERSON | Big Horn County, WY | Oil & Gas Property | May 2025 |
| 18041 | C B BRYAN | Union Parish, LA | Gas Property | Nov 2024 |
| 18042 | C B C CORP | Indiana County, PA | Gas Property | Dec 2024 |
| 18043 | C B HYDE | Seminole County, OK | Oil Property | Apr 2025 |
| 18044 | C B MCNEIL | Custer County, OK | Oil & Gas Property | Sep 2019 |
| 18045 | C BIRK | Wichita County, TX | Oil & Gas Property | May 2025 |
| 18046 | C BORK | Indiana County, PA | Gas Property | Dec 2024 |
| 18047 | C BROWN LEASE | Warren County, PA | Oil & Gas Property | Dec 2024 |
| 18048 | C BURR | Garvin County, OK | Oil Property | Sep 2021 |
| 18049 | C C BESHEA | Claiborne Parish, LA | Oil & Gas Property | Jun 1999 |
| 18050 | C C CAGLE C | Lea County, NM | Gas Property | Jul 2019 |
| 18051 | C C COX | Webster Parish, LA | Oil & Gas Property | Dec 2024 |
| 18052 | C C FRISTOE A FEDERAL NCT | Lea County, NM | Oil & Gas Property | May 2025 |
| 18053 | C C FRISTOE B FEDERAL NCT | Lea County, NM | Oil & Gas Property | May 2025 |
| 18054 | C C LANKFORD B | Union Parish, LA | Gas Property | Dec 2024 |
| 18055 | C C NORMAN | Union Parish, LA | Gas Property | Dec 2024 |
| 18056 | C C WRIGHT | Lasalle Parish, LA | Oil Property | Dec 2024 |
| 18057 | C CARL SCHRECENGOST | Armstrong County, PA | Gas Property | Dec 2024 |
| 18058 | C COLEMAN | Indiana County, PA | Oil & Gas Property | Dec 2024 |
| 18059 | C CORP | Pike County, KY | Gas Property | Dec 2022 |
| 18060 | C CROSS RANCH 30 | Frio County, TX | Oil & Gas Property | May 2025 |
| 18061 | C D & G DEVELOPMENT | Breathitt County, KY | Gas Property | Dec 2020 |
| 18062 | C D & G ENTERPRISES | Pike County, KY | Oil & Gas Property | Dec 2023 |
| 18063 | C D BROWN | Pawnee County, OK | Oil & Gas Property | Jan 2025 |
| 18064 | C D PARKS | Stephens County, OK | Oil Property | Jul 2018 |
| 18065 | C D WILL | Stephens County, OK | Oil Property | Apr 2025 |
| 18066 | C D WOOLWORTH | Lea County, NM | Oil & Gas Property | May 2025 |
| 18067 | C DIVEL | Garfield County, OK | Oil & Gas Property | Aug 2024 |
| 18068 | C E BROOKS | Lea County, NM | Oil & Gas Property | Aug 2024 |
| 18069 | C E CANAN | McKean County, PA | Oil Property | Dec 2005 |
| 18070 | C E GHEENS | Lafourche Parish, LA | Oil & Gas Property | Jan 2025 |
| 18071 | C E HAYES ETAL #40-4 | Santa Rosa County, FL | Oil & Gas Property | Dec 2024 |
| 18072 | C E HEATH | Blaine County, OK | Oil & Gas Property | Apr 2025 |
| 18073 | C E LAMUNYON | Lea County, NM | Oil & Gas Property | May 2025 |
| 18074 | C E MARTIN | Stephens County, OK | Oil Property | Apr 2025 |
| 18075 | C E MCCAUGHEY | Stephens County, OK | Oil Property | Apr 2025 |
| 18076 | C E MCK | Garvin County, OK | Oil & Gas Property | Jun 2018 |
| 18077 | C E MCKEY | Garvin County, OK | Oil & Gas Property | Apr 2025 |
| 18078 | C E MCLARNAN | Knox County, OH | Oil & Gas Property | Dec 2024 |
| 18079 | C E MILNER | Red River Parish, LA | Gas Property | Dec 2024 |
| 18080 | C E PEACE 2 | De Soto Parish, LA | Oil & Gas Property | Nov 2024 |
| 18081 | C E PENNY FEDERAL NCT 4 | Lea County, NM | Oil & Gas Property | Nov 2000 |
| 18082 | C E STRICKLAND | Indiana County, PA | Gas Property | Dec 2024 |
| 18083 | C EDWARDS ETAL | Caddo Parish, LA | Oil Property | Jan 2025 |
| 18084 | C F BLEAKNE | Armstrong County, PA | Oil & Gas Property | Dec 2024 |
| 18085 | C F HENRY | Cameron Parish, LA | Oil & Gas Property | Jul 2023 |
| 18086 | C FEDNE DOME FED 1 | Uinta County, WY | Oil & Gas Property | Jun 2025 |
| 18087 | C FOX | Clarion County, PA | Gas Property | Dec 2024 |
| 18088 | C FRYSTAK | Susquehanna County, PA | Gas Property | May 2025 |
| 18089 | C G CRAVENER | Armstrong County, PA | Gas Property | Dec 2024 |
| 18090 | C G ROAD | Sweetwater County, WY | Oil & Gas Property | May 2025 |
| 18091 | C G T CORP ET AL | Pike County, KY | Oil & Gas Property | Dec 2023 |
| 18092 | C GOV'T 2H | Big Horn County, WY | Oil & Gas Property | May 2025 |
| 18093 | C GUFFEY | Indiana County, PA | Gas Property | Dec 2024 |
| 18094 | C H DEVELOPMENT | Knox County, KY | Gas Property | Dec 2022 |
| 18095 | C H KYTE | Lea County, NM | Gas Property | Jan 2016 |
| 18096 | C H LOCKHART FEDERAL NCT-1 | Lea County, NM | Oil & Gas Property | May 2025 |
| 18097 | C H MARLEY | Major County, OK | Oil & Gas Property | May 2025 |
| 18098 | C H NEISWONGER | Clarion County, PA | Oil & Gas Property | Dec 2024 |
| 18099 | C H SNYDER CO | Armstrong County, PA | Gas Property | May 2025 |
| 18100 | C H SNYDER CO UNIT | Armstrong County, PA | Gas Property | Dec 2024 |