| 6001 | CLENNY | Hughes County, OK | Oil & Gas Property | May 2012 |
| 6002 | CLEO | Smith County, TX | Oil & Gas Property | May 2025 |
| 6003 | CLEO | Graham County, KS | Oil Property | Apr 2025 |
| 6004 | CLEO | Stephens County, OK | Oil & Gas Property | Apr 2025 |
| 6005 | CLEO | McKenzie County, ND | Oil & Gas Property | Jun 2025 |
| 6006 | CLEO 1-12H | McKenzie County, ND | Oil & Gas Property | Jun 2025 |
| 6007 | CLEO 1-20 | Lane County, KS | Oil Property | Apr 2025 |
| 6008 | CLEO 31X-5 | Williams County, ND | Oil & Gas Property | Jun 2025 |
| 6009 | CLEO CAMPBELL UNIT | Woods County, OK | Gas Property | Jul 2024 |
| 6010 | CLEO FED 3672-24 | Converse County, WY | Oil & Gas Property | May 2025 |
| 6011 | CLEO PRATT | Union Parish, LA | Gas Property | Jul 2024 |
| 6012 | CLEO WALTER | Washita County, OK | Gas Property | Apr 2025 |
| 6013 | CLEOFF 8-1-2 MBH-ULW | McKenzie County, ND | Oil & Gas Property | Jun 2025 |
| 6014 | CLEOFILL 1 | McKenzie County, ND | Oil & Gas Property | Jun 2025 |
| 6015 | CLEOPATRA | Starr County, TX | Oil & Gas Property | May 2025 |
| 6016 | CLEOPATRA UNIT I | Lee County, TX | Oil & Gas Property | May 2025 |
| 6017 | CLEORA | Pittsburg County, OK | Gas Property | Apr 2025 |
| 6018 | CLEPPER | Armstrong County, PA | Gas Property | May 2025 |
| 6019 | CLERIHEW | Jack County, TX | Oil & Gas Property | May 2025 |
| 6020 | CLERIHEW | Jack County, TX | Oil Property | May 2025 |
| 6021 | CLESTER | Blaine County, OK | Oil & Gas Property | Apr 2025 |
| 6022 | CLETCHER | Weld County, CO | Oil & Gas Property | Jan 2018 |
| 6023 | CLETUS | Kay County, OK | Oil & Gas Property | Apr 2025 |
| 6024 | CLETUS 28 21 | Eddy County, NM | Oil & Gas Property | May 2025 |
| 6025 | CLETUS 28 STATE COM | Eddy County, NM | Oil & Gas Property | Oct 2015 |
| 6026 | CLEVA JO | Noble County, OK | Oil Property | Mar 2013 |
| 6027 | CLEVELAND | Anderson County, KS | Oil Property | Apr 2025 |
| 6028 | CLEVELAND | Yoakum County, TX | Oil & Gas Property | May 2025 |
| 6029 | CLEVELAND | Wayne County, OH | Oil & Gas Property | Dec 2024 |
| 6030 | CLEVELAND | Lipscomb County, TX | Oil & Gas Property | Mar 2013 |
| 6031 | CLEVELAND | Johnson County, TX | Oil & Gas Property | Nov 2024 |
| 6032 | CLEVELAND | Grady County, OK | Oil Property | Oct 2024 |
| 6033 | CLEVELAND | Caddo Parish, LA | Oil Property | Jan 2025 |
| 6034 | CLEVELAND | Hemphill County, TX | Oil & Gas Property | May 2025 |
| 6035 | CLEVELAND | Matagorda County, TX | Oil & Gas Property | May 2025 |
| 6036 | CLEVELAND | Lafayette County, AR | Oil & Gas Property | Dec 2024 |
| 6037 | CLEVELAND | Weld County, CO | Oil & Gas Property | May 2025 |
| 6038 | CLEVELAND | Wayne County, OH | Oil & Gas Property | Dec 2024 |
| 6039 | CLEVELAND | Hemphill County, TX | Oil & Gas Property | May 2025 |
| 6040 | CLEVELAND | San Juan County, NM | Gas Property | May 2025 |
| 6041 | CLEVELAND | Grimes County, TX | Oil & Gas Property | May 2025 |
| 6042 | CLEVELAND 1805 | Kingfisher County, OK | Oil & Gas Property | Apr 2025 |
| 6043 | CLEVELAND 43 | Midland County, TX | Oil & Gas Property | May 2025 |
| 6044 | CLEVELAND 5 | Glasscock County, TX | Oil & Gas Property | May 2025 |
| 6045 | CLEVELAND B | Harrison County, OH | Oil & Gas Property | Dec 2024 |
| 6046 | CLEVELAND BOY SCOUTS OF AMERICA | Lorain County, OH | Oil & Gas Property | Dec 2024 |
| 6047 | CLEVELAND CATHOLIC | Medina County, OH | Oil & Gas Property | Dec 1995 |
| 6048 | CLEVELAND CREST | Liberty County, TX | Oil & Gas Property | May 2025 |
| 6049 | CLEVELAND FEDERAL | Tarrant County, TX | Oil & Gas Property | May 2025 |
| 6050 | CLEVELAND HELEN | Parker County, TX | Oil & Gas Property | May 2025 |
| 6051 | CLEVELAND HIGHLAND | Cuyahoga County, OH | Oil & Gas Property | Dec 2024 |
| 6052 | CLEVELAND METROP | Medina County, OH | Oil & Gas Property | Dec 2024 |
| 6053 | CLEVELAND QUARRIES | Erie County, OH | Oil & Gas Property | Dec 2024 |
| 6054 | CLEVELAND R | Reeves County, TX | Oil & Gas Property | May 2025 |
| 6055 | CLEVELAND R | Reeves County, TX | Oil & Gas Property | May 2025 |
| 6056 | CLEVELAND STATE 57-23 | Reeves County, TX | Oil & Gas Property | May 2025 |
| 6057 | CLEVELAND TAYLOR UNIT | Tarrant County, TX | Oil & Gas Property | May 2025 |
| 6058 | CLEVELAND W | Wise County, TX | Oil & Gas Property | May 2025 |
| 6059 | CLEVELAND WAYNE ET AL C | Hemphill County, TX | Oil & Gas Property | May 2025 |
| 6060 | CLEVELAND/SENECA GOLF COURSE | Cuyahoga County, OH | Oil & Gas Property | Dec 2024 |
| 6061 | CLEVEN | Bottineau County, ND | Oil & Gas Property | Jun 2025 |
| 6062 | CLEVENGER | Neosho County, KS | Gas Property | Apr 2025 |
| 6063 | CLEVENGER | Pike County, KY | Gas Property | Dec 2019 |
| 6064 | CLEVENGER 1 | Ford County, KS | Oil & Gas Property | Apr 2025 |
| 6065 | CLEVENGER, CLYDE 3 | Ritchie County, WV | Oil & Gas Property | Dec 2004 |
| 6066 | CLEVIDENCE, S V | Union County, KY | Oil Property | Dec 2023 |
| 6067 | CLEVY 1 | Moore County, TX | Oil & Gas Property | May 2025 |
| 6068 | CLICK | Cherokee County, TX | Oil & Gas Property | Apr 2025 |
| 6069 | CLICK | Howard County, TX | Oil & Gas Property | May 2025 |
| 6070 | CLICK ROGER W | Wilson County, TX | Oil & Gas Property | Nov 2022 |
| 6071 | CLICK-CHEVRON 14-11 | Howard County, TX | Oil & Gas Property | May 2025 |
| 6072 | CLIFF 5 | Williams County, ND | Oil & Gas Property | Jun 2025 |
| 6073 | CLIFF FEE 4 | Culberson County, TX | Oil & Gas Property | May 2025 |
| 6074 | CLIFF WILLIAMS | Payne County, OK | Oil Property | Mar 2025 |
| 6075 | CLIFFHANGER | Fayette County, TX | Oil & Gas Property | May 2025 |
| 6076 | CLIFFORD | Hemphill County, TX | Oil & Gas Property | May 2025 |
| 6077 | CLIFFORD | Adams County, MS | Oil & Gas Property | Jun 1983 |
| 6078 | CLIFFORD | Mountrail County, ND | Oil & Gas Property | Jun 2025 |
| 6079 | CLIFFORD | Murray County, OK | Oil Property | May 2025 |
| 6080 | CLIFFORD & CLETUS TROYER | Erie County, PA | Gas Property | Dec 2019 |
| 6081 | CLIFFORD 24-8TFH | Dunn County, ND | Oil & Gas Property | Jun 2025 |
| 6082 | CLIFFORD 36-26-12 | Alfalfa County, OK | Oil & Gas Property | Apr 2025 |
| 6083 | CLIFFORD ADD | Eddy County, NM | Oil & Gas Property | Mar 2022 |
| 6084 | CLIFFORD CAUSEY | Adams County, CO | Oil & Gas Property | Jun 2025 |
| 6085 | CLIFFORD CHANEY | Washington County, OH | Oil & Gas Property | Dec 2024 |
| 6086 | CLIFFORD F. SPIES G | Dewitt County, TX | Oil & Gas Property | Mar 2022 |
| 6087 | CLIFFORD GENE 1-12H | Mountrail County, ND | Oil & Gas Property | Jun 2025 |
| 6088 | CLIFFORD GLAS | Forest County, PA | Oil & Gas Property | Dec 2024 |
| 6089 | CLIFFORD H HUFFMAN | Armstrong County, PA | Gas Property | Dec 2024 |
| 6090 | CLIFFORD L | Weld County, CO | Oil & Gas Property | Mar 2021 |
| 6091 | CLIFFORD MAZE | Warren County, PA | Oil & Gas Property | Dec 2020 |
| 6092 | CLIFFORD P. FLEMING | Indiana County, PA | Gas Property | Dec 2024 |
| 6093 | CLIFFORD TRUST | Kern County, CA | Oil Property | Jun 2025 |
| 6094 | CLIFFORD UNIT | Cooke County, TX | Oil & Gas Property | Jul 2020 |
| 6095 | CLIFFORD, JOHN | Warren County, KY | Oil Property | Dec 2008 |
| 6096 | CLIFFORD-PARKER | Toole County, MT | Oil Property | Jun 1989 |
| 6097 | CLIFFSIDE FEDERAL 25-26H | McKenzie County, ND | Oil & Gas Property | Jun 2025 |
| 6098 | CLIFFSTAR | Chautauqua County, NY | Gas Property | Dec 2024 |
| 6099 | CLIFFT | Hughes County, OK | Oil & Gas Property | Apr 2025 |
| 6100 | CLIFT | Custer County, OK | Oil & Gas Property | Apr 2025 |