| 42-383-30670 | HALFF -1- 1 | APACHE CORPORATION | Plugged Oil Well | Reagan County, TX | | | | 31.394575 | -101.767919 |
| 42-383-30721 | HALFF -32- 1 | TAMARACK PETROLEUM COMPANY, INC. | Plugged Oil Well | Reagan County, TX | | | | 31.410026 | -101.774865 |
| 42-383-30727 | HALFF "16" 1 | TAMARACK PETROLEUM COMPANY, INC. | Plugged Oil Well | Reagan County, TX | | | | 31.399027 | -101.764906 |
| 42-383-30728 | HALFF -42- 1 | APACHE CORPORATION | Plugged Oil Well | Reagan County, TX | | | | 31.386558 | -101.769449 |
| 42-383-30805 | HALFF "A" 1 | APACHE CORPORATION | Plugged Oil Well | Reagan County, TX | | | | 31.404737 | -101.757796 |
| 42-383-30813 | HALFF "B" 1 | APACHE CORPORATION | Plugged Oil Well | Reagan County, TX | | | | 31.401555 | -101.769684 |
| 42-383-30834 | HALFF -A- 2 | TAMARACK PETROLEUM COMPANY, INC. | Plugged Oil Well | Reagan County, TX | | | | 31.400856 | -101.756696 |
| 42-383-30835 | HALFF "A" 3 | APACHE CORPORATION | Plugged Oil Well | Reagan County, TX | | | | 31.407849 | -101.758480 |
| 42-383-30837 | HALFF -42- 2 | APACHE CORPORATION | Plugged Oil Well | Reagan County, TX | | | | 31.379714 | -101.767941 |
| 42-383-30846 | HALFF -42- 3 | APACHE CORPORATION | Plugged Oil Well | Reagan County, TX | | | | 31.389440 | -101.772655 |
| 42-383-31174 | HALFF "41" 1 | TAMARACK PETROLEUM COMPANY, INC. | Plugged Oil Well | Reagan County, TX | | | | 31.376674 | -101.780045 |
| 42-383-35651 | HALFF -42- 5TM | MARINER ENERGY, INC. | Plugged Oil Well | Reagan County, TX | | | | 31.387521 | -101.765821 |
| 42-383-35654 | HALFF -42- 8TM | MARINER ENERGY, INC. | Plugged Oil Well | Reagan County, TX | | | | 31.380553 | -101.763780 |
| 42-383-35705 | HALFF "B" 3TM | MARINER ENERGY, INC. | Plugged Oil Well | Reagan County, TX | | | | 31.404300 | -101.775274 |
| 42-383-35706 | HALFF "16" 7TM | MARINER ENERGY, INC. | Permitted Location | Reagan County, TX | | | | 31.396420 | -101.759716 |
| 42-383-35707 | HALFF "A" 6TM | MARINER ENERGY, INC. | Plugged Oil Well | Reagan County, TX | | | | 31.405429 | -101.753733 |
| 42-383-40113 | HALFF 1Q 117H | PIONEER NATURAL RES. USA, INC. | Producing | Reagan County, TX | | | | 31.405880 | -101.771626 |
| 42-383-40114 | HALFF 1P 116H | PIONEER NATURAL RES. USA, INC. | Producing | Reagan County, TX | | | | 31.405865 | -101.771688 |
| 42-383-40115 | HALFF 1R 118H | PIONEER NATURAL RES. USA, INC. | Producing | Reagan County, TX | | | | 31.405894 | -101.771565 |
| 42-461-30535 | HALFF -1- 2 | APACHE CORPORATION | Plugged Oil Well | Upton County, TX | | | | 31.400042 | -101.778265 |
| 42-461-30546 | HALFF "2" 1 | APACHE CORPORATION | Plugged Oil Well | Upton County, TX | | | | 31.390737 | -101.784353 |
| 42-461-30601 | HALFF "B" 2 | APACHE CORPORATION | Plugged Oil Well | Upton County, TX | | | | 31.391764 | -101.778570 |
| 42-461-31237 | HALFF "41" 2 | TAMARACK PETROLEUM COMPANY, INC. | Plugged Oil Well | Upton County, TX | | | | 31.383927 | -101.782432 |
| 42-461-31471 | HALFF 1 | COQUINA OIL CORPORATION | Dry Hole | Upton County, TX | | | | 31.392334 | -101.793677 |
| 42-461-31580 | HALFF 1-X | COQUINA OIL CORPORATION | Plugged Oil Well | Upton County, TX | | | | 31.392256 | -101.794037 |
| 42-461-31615 | HALFF "A" 1 | COQUINA OIL CORPORATION | Plugged Oil Well | Upton County, TX | | | | 31.401392 | -101.787800 |
| 42-461-31616 | HALFF "B" 1 | COQUINA OIL CORPORATION | Plugged Oil Well | Upton County, TX | | | | 31.409433 | -101.785707 |
| 42-461-35000 | HALFF -42- 6TM | MARINER ENERGY, INC. | Plugged Oil Well | Upton County, TX | | | | 31.388157 | -101.779185 |
| 42-461-35001 | HALFF "41" 4TM | MARINER ENERGY, INC. | Plugged Oil Well | Upton County, TX | | | | 31.379288 | -101.785232 |
| 42-461-35002 | HALFF "41" 3TM | MARINER ENERGY, INC. | Plugged Oil Well | Upton County, TX | | | | 31.386310 | -101.787379 |
| 42-461-35022 | HALFF-1- 3TM | MARINER ENERGY, INC. | Plugged Oil Well | Upton County, TX | | | | 31.402244 | -101.783139 |
| 42-461-35039 | HALFF "B" 4TM | MARINER ENERGY, INC. | Permitted Location | Upton County, TX | | | | 31.395175 | -101.781329 |
| 42-461-35040 | HALFF "2" 2TM | MARINER ENERGY, INC. | Permitted Location | Upton County, TX | | | | 31.393312 | -101.789511 |
| 42-461-37254 | HALFF 2 1 | THOMPSON, J. CLEO | Plugged Oil Well | Upton County, TX | | | | 31.388854 | -101.792744 |
| 42-461-38018 | HALFF '32' 1 | HANNATHON PETROLEUM, LLC | Plugged Oil Well | Upton County, TX | | | | 31.417567 | -101.783795 |
| 42-461-38470 | HALFF 2 2 | APACHE CORPORATION | Plugged Oil Well | Upton County, TX | | | | 31.393762 | -101.790264 |
| 42-461-38873 | HALFF 2A 1 | PIONEER NATURAL RES. USA, INC. | Shut In | Upton County, TX | | | | 31.400504 | -101.791718 |
| 42-461-39095 | HALFF 2B 1 | PIONEER NATURAL RES. USA, INC. | Shut In | Upton County, TX | | | | 31.391265 | -101.798353 |
| 42-461-39317 | HALFF 2A 2 | PIONEER NATURAL RES. USA, INC. | Shut In | Upton County, TX | | | | 31.398243 | -101.786713 |
| 42-461-39356 | HALFF 2B 2 | PIONEER NATURAL RES. USA, INC. | Shut In | Upton County, TX | | | | 31.387273 | -101.797051 |
| 42-461-39422 | HALFF 32 2 | PARSLEY ENERGY OPERATIONS, LLC | Plugged Oil Well | Upton County, TX | | | | 31.412401 | -101.786681 |
| 42-461-39627 | HALFF 2C 2 | PIONEER NATURAL RES. USA, INC. | Shut In | Upton County, TX | | | | 31.391687 | -101.784708 |
| 42-461-39727 | HALFF 3 1 | PIONEER NATURAL RES. USA, INC. | Producing | Upton County, TX | | | | 31.397081 | -101.808209 |
| 42-461-39888 | HALFF 2C 3 | PARSLEY ENERGY OPERATIONS, LLC | Plugged Oil Well | Upton County, TX | | | | 31.397464 | -101.800273 |
| 42-461-39902 | HALFF 2C 4 | PARSLEY ENERGY OPERATIONS, LLC | Permitted Location | Upton County, TX | | | | 31.395189 | -101.785750 |
| 42-461-40134 | HALFF 2 4412H | PIONEER NATURAL RES. USA, INC. | Producing | Upton County, TX | | | | 31.402016 | -101.789781 |
| 42-461-40145 | HALFF 3 2 | PIONEER NATURAL RES. USA, INC. | Producing | Upton County, TX | | | | 31.392553 | -101.806779 |
| 42-461-40266 | HALFF '32' 1D | PARSLEY ENERGY OPERATIONS, LLC | Permitted Location | Upton County, TX | | | | 31.413028 | -101.781183 |
| 42-461-40716 | HALFF 1D 104H | PIONEER NATURAL RES. USA, INC. | Shut In | Upton County, TX | | | | 31.403562 | -101.781585 |
| 42-461-40717 | HALFF 1E 105H | PIONEER NATURAL RES. USA, INC. | Producing | Upton County, TX | | | | 31.403432 | -101.781120 |
| 42-461-40718 | HALFF 1F 106H | PIONEER NATURAL RES. USA, INC. | Producing | Upton County, TX | | | | 31.403591 | -101.781461 |