| 4001 | HEFFEL | Blaine County, OK | Oil & Gas Property | Dec 2023 |
| 4002 | HEFFELFINGER | Coshocton County, OH | Oil Property | Dec 2023 |
| 4003 | HEFFELFINGER | Matagorda County, TX | Oil & Gas Property | Jan 2024 |
| 4004 | HEFFELFINGER 519 | Armstrong County, PA | Gas Property | Dec 2023 |
| 4005 | HEFFELINGER | Ashland County, OH | Oil Property | Dec 2022 |
| 4006 | HEFFERMAN | Russell County, KS | Oil Property | Oct 2023 |
| 4007 | HEFFERN | Fayette County, PA | Gas Property | Dec 2023 |
| 4008 | HEFFERN | Allen County, KS | Gas Property | Dec 2023 |
| 4009 | HEFFERNAN | Russell County, KS | Oil Property | Dec 2023 |
| 4010 | HEFFERNAN | Atascosa County, TX | Oil & Gas Property | Jan 2024 |
| 4011 | HEFFINGTON | Faulkner County, AR | Gas Property | Jan 2024 |
| 4012 | HEFFLEFINGER, RICHARD CUMMINGS | Lewis County, WV | Oil & Gas Property | Dec 2021 |
| 4013 | HEFFNER | Jefferson County, PA | Gas Property | Dec 2023 |
| 4014 | HEFFNER | Clarion County, PA | Gas Property | Dec 2023 |
| 4015 | HEFFRON | Cowley County, KS | Oil & Gas Property | Oct 1989 |
| 4016 | HEFLEY | Wheeler County, TX | Oil & Gas Property | Jan 2024 |
| 4017 | HEFLEY | Rio Blanco County, CO | Oil & Gas Property | Jan 2024 |
| 4018 | HEFLEY | White County, AR | Gas Property | Feb 2024 |
| 4019 | HEFLEY | Wheeler County, TX | Oil & Gas Property | Jan 2024 |
| 4020 | HEFLEY | Wheeler County, TX | Oil & Gas Property | Jan 2024 |
| 4021 | HEFLEY | Hemphill County, TX | Oil & Gas Property | Jan 2024 |
| 4022 | HEFLEY 24 | Howard County, TX | Oil & Gas Property | Jan 2024 |
| 4023 | HEFLEY-FILLINGIM 39-40 M | Hemphill County, TX | Oil & Gas Property | Jan 2024 |
| 4024 | HEFLEY-PRATER 32-33 M | Hemphill County, TX | Oil & Gas Property | Jan 2024 |
| 4025 | HEFLIN | Doddridge County, WV | Gas Property | Dec 2021 |
| 4026 | HEFLIN | Caddo Parish, LA | Oil Property | Aug 2023 |
| 4027 | HEFLIN 1 | Pittsburg County, OK | Oil & Gas Property | Dec 2023 |
| 4028 | HEFLING | Reno County, KS | Oil Property | Dec 2023 |
| 4029 | HEFNER | Carter County, OK | Oil & Gas Property | Dec 2012 |
| 4030 | HEFNER | Kearny County, KS | Oil Property | Nov 2023 |
| 4031 | HEFNER | Stephens County, OK | Oil Property | Dec 2023 |
| 4032 | HEFNER | Stephens County, OK | Oil & Gas Property | Jan 2024 |
| 4033 | HEFNER | Stephens County, OK | Oil Property | Jan 2024 |
| 4034 | HEFNER | Braxton County, WV | Oil & Gas Property | Dec 2021 |
| 4035 | HEFNER | Seminole County, OK | Oil & Gas Property | Dec 2023 |
| 4036 | HEFNER | Stephens County, OK | Oil Property | Sep 2023 |
| 4037 | HEFNER | Guernsey County, OH | Oil & Gas Property | Dec 2022 |
| 4038 | HEFNER | Stephens County, OK | Oil & Gas Property | Oct 2023 |
| 4039 | HEFNER GAS UNIT | Kearny County, KS | Gas Property | Dec 2023 |
| 4040 | HEFT | Kiowa County, KS | Oil & Gas Property | Dec 2023 |
| 4041 | HEFT | Monroe County, OH | Oil & Gas Property | Dec 2023 |
| 4042 | HEFTE, MARY T | Nueces County, TX | Oil & Gas Property | Dec 2021 |
| 4043 | HEG DAY | Kay County, OK | Oil & Gas Property | Jan 2020 |
| 4044 | HEG MASSEY | Haskell County, TX | Oil Property | Dec 2023 |
| 4045 | HEGBERG | Butler County, KS | Oil Property | Dec 2023 |
| 4046 | HEGE | Tioga County, PA | Gas Property | Jan 2024 |
| 4047 | HEGEDIS | Fayette County, PA | Oil & Gas Property | Dec 2023 |
| 4048 | HEGER | Stevens County, KS | Oil & Gas Property | Dec 2023 |
| 4049 | HEGER | Caddo County, OK | Gas Property | Jan 2024 |
| 4050 | HEGER 'B' | Stevens County, KS | Gas Property | Dec 2023 |
| 4051 | HEGG | McKenzie County, ND | Oil & Gas Property | Feb 2024 |
| 4052 | HEGGE 21-17TFH | Dunn County, ND | Oil & Gas Property | Feb 2024 |
| 4053 | HEGGIE 7-9 | White County, AR | Gas Property | Jan 2024 |
| 4054 | HEGLE | Hill County, MT | Gas Property | Feb 2024 |
| 4055 | HEGLE | Hill County, MT | Gas Property | Feb 2024 |
| 4056 | HEGLER | Dunn County, ND | Oil & Gas Property | Feb 2024 |
| 4057 | HEGLIN | Beaver County, OK | Oil & Gas Property | Dec 2023 |
| 4058 | HEGWARD A | Freestone County, TX | Oil & Gas Property | Jan 2024 |
| 4059 | HEIBEL A | Dewitt County, TX | Oil & Gas Property | Jan 2024 |
| 4060 | HEICKMAN | Atascosa County, TX | Oil & Gas Property | Dec 2023 |
| 4061 | HEID UNIT | Tuscarawas County, OH | Oil & Gas Property | Dec 2022 |
| 4062 | HEIDAJA | Gray County, TX | Oil & Gas Property | Sep 2023 |
| 4063 | HEIDELBERG | Midland County, TX | Oil & Gas Property | Jan 2024 |
| 4064 | HEIDELBERG | Glasscock County, TX | Oil & Gas Property | Jan 2024 |
| 4065 | HEIDELBERG | Martin County, TX | Oil & Gas Property | Jan 2024 |
| 4066 | HEIDELBERG | Midland County, TX | Oil & Gas Property | Jan 2024 |
| 4067 | HEIDEMANN | Kimball County, NE | Oil Property | Dec 2022 |
| 4068 | HEIDEMANN | Kimball County, NE | Oil Property | Dec 2022 |
| 4069 | HEIDEMANN UNIT | Washington County, TX | Oil & Gas Property | Jan 2024 |
| 4070 | HEIDER - HAESE 1H | Wilson County, TX | Oil & Gas Property | Jan 2024 |
| 4071 | HEIDI | Grant County, OK | Oil & Gas Property | Jan 2024 |
| 4072 | HEIDI | Gray County, TX | Gas Property | Oct 2023 |
| 4073 | HEIDI 1H | Tarrant County, TX | Gas Property | Jan 2024 |
| 4074 | HEIDI 37 | Glasscock County, TX | Oil & Gas Property | Jan 2024 |
| 4075 | HEIDI CS FEDERAL | Campbell County, WY | Gas Property | Aug 2018 |
| 4076 | HEIDI-LITTLE MIPA 2H | Tarrant County, TX | Gas Property | Jan 2024 |
| 4077 | HEIDLEBERG EST. UNIT 1 | Anderson County, TX | Oil & Gas Property | Jan 2024 |
| 4078 | HEIDRICK | Greenwood County, KS | Oil Property | Dec 2023 |
| 4079 | HEIDRICK 1 | Colusa County, CA | Gas Property | May 2019 |
| 4080 | HEIER COMM 1-22 | Gove County, KS | Oil Property | Dec 2023 |
| 4081 | HEIFNER | Ohio County, KY | Oil Property | Dec 2017 |
| 4082 | HEIGHT CC 6 7 FEDERAL COM | Eddy County, NM | Oil & Gas Property | Jan 2024 |
| 4083 | HEIGHTS COM | San Juan County, NM | Oil & Gas Property | Feb 2024 |
| 4084 | HEIGLEY | Perry County, OH | Oil & Gas Property | Dec 2022 |
| 4085 | HEIL | Lipscomb County, TX | Oil & Gas Property | Jun 2020 |
| 4086 | HEIL | Leon County, TX | Oil & Gas Property | Jan 2024 |
| 4087 | HEIL | Lipscomb County, TX | Oil & Gas Property | Jan 2024 |
| 4088 | HEILAND | Campbell County, WY | Oil & Gas Property | Feb 2024 |
| 4089 | HEILAND | Campbell County, WY | Gas Property | Jun 2008 |
| 4090 | HEILIGER | Caddo County, OK | Oil & Gas Property | Dec 2023 |
| 4091 | HEILMAN | Meigs County, OH | Oil & Gas Property | Dec 2023 |
| 4092 | HEILMAN | Neosho County, KS | Oil & Gas Property | Dec 2023 |
| 4093 | HEILPERIN | Caddo Parish, LA | Oil & Gas Property | Jan 2024 |
| 4094 | HEIM | Leavenworth County, KS | Oil & Gas Property | Oct 2023 |
| 4095 | HEIM | La Salle County, TX | Oil & Gas Property | Jan 2024 |
| 4096 | HEIM | Russell County, KS | Oil Property | Dec 2023 |
| 4097 | HEIMAN | Colorado County, TX | Oil & Gas Property | Jan 2024 |
| 4098 | HEIMAN GAS UNIT | Finney County, KS | Gas Property | Dec 2023 |
| 4099 | HEIMBACH | Noble County, OK | Oil & Gas Property | Dec 2023 |
| 4100 | HEIMERMAN | Washington County, CO | Oil Property | Jan 2024 |