| Davis L. T. #13W42-003-34448 | Highmark Energy Operating LLC | Andrews, TXFuhrman-Mascho | Shut inOil | 4,450 | Aug 15, 1984 | — | — |
| Davis L. T. #14W42-003-34449 | Highmark Energy Operating LLC | Andrews, TXFuhrman-Mascho | ActiveInjection | 4,450 | Aug 15, 1984 | — | — |
| King E. F. #6W42-003-34450 | Highmark Energy Operating LLC | Andrews, TXFuhrman-Mascho | Shut inOil | 4,450 | Aug 15, 1984 | — | — |
| University 155 #842-003-34435 | Highmark Energy Operating LLC | Andrews, TXShafter Lake (Ellenburger) | Shut inOil | 11,687 | Aug 13, 1984 | — | — |
| Conroe Field Unit #96D42-339-30668 | Highmark Energy Operating LLC | Montgomery, TXConroe | PluggedOil | 4,350 | Jul 27, 1984 | — | — |
| Alma #642-135-02439 | Highmark Energy Operating LLC | Ector, TXGoldsmith W. (San Andres) | Shut inOil | 9,820 | Jul 24, 1984 | — | — |
| Conroe Field Unit #221542-339-30653 | Highmark Energy Operating LLC | Montgomery, TXConroe | Temporarily abandonedGas | 5,100 | Jul 6, 1984 | — | — |
| Prentice Northeast Unit #16742-445-31218 | Highmark Energy Operating LLC | Terry, TXPrentice (6700) | ActiveOil | 6,683 | Jul 6, 1984 | — | — |
| Prentice Northeast Unit #17142-445-31219 | Highmark Energy Operating LLC | Terry, TXPrentice (6700) | ActiveOil | 6,888 | Jul 6, 1984 | — | — |
| Prentice Northeast Unit #17242-445-31220 | Highmark Energy Operating LLC | Terry, TXPrentice (6700) | Shut inOil | 7,007 | Jul 6, 1984 | — | — |
| Prentice Northeast Unit #17042-445-31221 | Highmark Energy Operating LLC | Terry, TXPrentice (6700) | ActiveWater Supply | 6,888 | Jul 6, 1984 | — | — |
| Prentice Northeast Unit #165A42-445-31222 | Highmark Energy Operating LLC | Terry, TXPrentice (6700) | ActiveOil | 6,652 | Jul 6, 1984 | — | — |
| Prentice Northeast Unit #16642-445-31223 | Highmark Energy Operating LLC | Terry, TXPrentice (6700) | ActiveOil | 6,684 | Jul 6, 1984 | — | — |
| Prentice Northeast Unit #16942-445-31224 | Highmark Energy Operating LLC | Terry, TXPrentice (6700) | ActiveOil | 6,892 | Jul 6, 1984 | — | — |
| Prentice Northeast Unit #16842-445-31225 | Highmark Energy Operating LLC | Terry, TXPrentice (6700) | ActiveOil | 6,712 | Jul 6, 1984 | — | — |
| Conroe Field Unit #272242-339-30661 | Highmark Energy Operating LLC | Montgomery, TXConroe | ActiveOil | 5,148 | May 30, 1984 | — | — |
| Conroe Field Unit #272142-339-30654 | Highmark Energy Operating LLC | Montgomery, TXConroe | ActiveOil | 5,194 | May 16, 1984 | — | — |
| Conroe Field Unit #221442-339-30648 | Highmark Energy Operating LLC | Montgomery, TXConroe | Shut inOil | 5,102 | May 10, 1984 | — | — |
| Conroe Field Unit #22242-339-30647 | Highmark Energy Operating LLC | Montgomery, TXConroe | PluggedOil | 5,570 | Apr 23, 1984 | — | — |
| Conroe Field Unit #194442-339-30643 | Highmark Energy Operating LLC | Montgomery, TXConroe | Shut inOil | 5,166 | Apr 18, 1984 | — | — |
| Conroe Field Unit #353042-339-30652 | Highmark Energy Operating LLC | Montgomery, TXConroe | PluggedOil | 5,665 | Apr 18, 1984 | — | — |
| Conroe Field Unit #194542-339-30636 | Highmark Energy Operating LLC | Montgomery, TXConroe | ActiveOil | 5,100 | Mar 20, 1984 | — | — |
| Shell-Perkins #442-003-34078 | Highmark Energy Operating LLC | Andrews, TXDeep Rock (Penn.) | PluggedOil | 9,500 | Mar 16, 1984 | — | — |
| Conroe Field Unit #321042-339-30639 | Highmark Energy Operating LLC | Montgomery, TXConroe | Shut inOil | 5,150 | Mar 16, 1984 | — | — |
| Shell-Perkins #342-003-34046 | Highmark Energy Operating LLC | Andrews, TXDeep Rock (Penn.) | PluggedOil | 9,500 | Mar 6, 1984 | — | — |
| Conroe Field Unit #41242-339-01938 | Highmark Energy Operating LLC | Montgomery, TXConroe | Shut inOil | 5,170 | Feb 27, 1984 | — | — |
| Keystone Mills Co. #4342-339-30635 | Highmark Energy Operating LLC | Montgomery, TXConroe (Middle Wilcox Cons.) | Temporarily abandonedGas | 9,730 | Feb 7, 1984 | — | — |
| Doyle J.B. #142-295-31472 | Highmark Energy Operating LLC | Lipscomb, TXLipscomb E. (Des Moines) | PluggedOil | 10,800 | Jan 27, 1984 | — | — |
| Conroe Field Unit #320942-339-30633 | Highmark Energy Operating LLC | Montgomery, TXConroe | Shut inOil | 5,242 | Jan 13, 1984 | — | — |
| Conroe Field Unit #207342-339-30631 | Highmark Energy Operating LLC | Montgomery, TXConroe | Temporarily abandonedGas | 5,140 | Jan 10, 1984 | — | — |
| Conroe Field Unit #194342-339-30625 | Highmark Energy Operating LLC | Montgomery, TXConroe | ActiveOil | 5,149 | Dec 30, 1983 | — | — |
| Shell-Perkins #242-003-33929 | Highmark Energy Operating LLC | Andrews, TXDeep Rock (Penn.) | PluggedOil | 9,500 | Dec 28, 1983 | — | — |
| Prentice Northeast Unit #16242-445-31181 | Highmark Energy Operating LLC | Terry, TXPrentice (6700) | ActiveOil | 6,979 | Dec 23, 1983 | — | — |
| Prentice Northeast Unit #16142-445-31182 | Highmark Energy Operating LLC | Terry, TXPrentice (6700) | PluggedOil | 7,015 | Dec 23, 1983 | — | — |
| Prentice Northeast Unit #15942-501-32512 | Highmark Energy Operating LLC | Yoakum, TXPrentice (6700) | ActiveOil | 6,887 | Dec 23, 1983 | — | — |
| Prentice Northeast Unit #15842-445-31174 | Highmark Energy Operating LLC | Terry, TXPrentice (6700) | PluggedOil | 7,000 | Dec 9, 1983 | — | — |
| Prentice Northeast Unit #15742-445-31175 | Highmark Energy Operating LLC | Terry, TXPrentice (6700) | PluggedOil | 7,100 | Dec 9, 1983 | — | — |
| Davis L. T. #10W42-003-33885 | Highmark Energy Operating LLC | Andrews, TXFuhrman-Mascho | ActiveInjection | 4,454 | Dec 6, 1983 | — | — |
| Conroe Field Unit #194242-339-30620 | Highmark Energy Operating LLC | Montgomery, TXConroe | ActiveOil | 5,270 | Dec 6, 1983 | — | — |
| Conroe Field Unit #22142-339-30621 | Highmark Energy Operating LLC | Montgomery, TXConroe | Temporarily abandonedGas | 5,090 | Dec 2, 1983 | — | — |
| Conroe Field Unit #320842-339-30622 | Highmark Energy Operating LLC | Montgomery, TXConroe | Temporarily abandonedGas | 5,230 | Dec 2, 1983 | — | — |
| University 173 #1642-003-33866 | Highmark Energy Operating LLC | Andrews, TXShafter Lake (Ellenburger) | Shut inOil | 11,700 | Nov 21, 1983 | — | — |
| Conroe Field Unit #95D42-339-30618 | Highmark Energy Operating LLC | Montgomery, TXConroe | Shut inOil | 3,707 | Nov 18, 1983 | — | — |
| Conroe Field Unit #220D42-339-30616 | Highmark Energy Operating LLC | Montgomery, TXConroe | Shut inOil | 5,060 | Nov 7, 1983 | — | — |
| Schultz Brothers -C- #142-295-00932 | Highmark Energy Operating LLC | Lipscomb, TXLipscomb (Cleveland) | ActiveGas | 10,270 | Nov 2, 1983 | — | — |
| Graham-University #342-003-33772 | Highmark Energy Operating LLC | Andrews, TXDeep Rock (Glorieta 5950) | ActiveOil | 6,250 | Sep 29, 1983 | — | — |
| Parker Harry #242-295-31397 | Highmark Energy Operating LLC | Lipscomb, TXParker (Morrow D-1) | Temporarily abandonedGas | 10,550 | Sep 22, 1983 | — | — |
| Conroe Field Unit #361942-339-30606 | Highmark Energy Operating LLC | Montgomery, TXConroe | Temporarily abandonedGas | 5,100 | Sep 22, 1983 | — | — |
| Davis L. T. #1242-003-33588 | Highmark Energy Operating LLC | Andrews, TXFuhrman-Mascho | PluggedOil | 4,600 | Aug 25, 1983 | — | — |
| Shell-Perkins #142-003-33704 | Highmark Energy Operating LLC | Andrews, TXDeep Rock (Penn.) | PluggedOil | 9,500 | Aug 23, 1983 | — | — |