| 2009-03-12 | 678153 | 42-435-39170 | JONES RANCH 157 #2 | HIGHMOUNT EXPL & PROD TEXAS LLC | DRILL | 7,750 | |
| 2009-02-27 | 678834 | 42-435-39173 | MAYER RANCH 36 #4 | HIGHMOUNT EXPL & PROD TEXAS LLC | DRILL | 8,750 | |
| 2009-02-26 | 678017 | 42-435-35259 | BLOODWORTH 140 #7 | HIGHMOUNT EXPL & PROD TEXAS LLC | RECOMP | 7,700 | |
| 2009-02-13 | 678560 | 42-435-39172 | CAUTHORN 17 #4 | HIGHMOUNT EXPL & PROD TEXAS LLC | DRILL | 7,700 | |
| 2009-02-06 | 678274 | 42-435-39171 | STEWART #319 | HIGHMOUNT EXPL & PROD TEXAS LLC | DRILL | 4,850 | |
| 2009-02-06 | 678087 | 42-435-39164 | SHURLEY #149 | HIGHMOUNT EXPL & PROD TEXAS LLC | DRILL | 6,450 | |
| 2009-02-05 | 678174 | 42-435-39169 | FRIESS 8 #5 | HIGHMOUNT EXPL & PROD TEXAS LLC | DRILL | 6,250 | |
| 2009-02-05 | 678173 | 42-435-39168 | FRIESS 8 #6 | HIGHMOUNT EXPL & PROD TEXAS LLC | DRILL | 6,250 | |
| 2009-02-05 | 678153 | 42-435-39170 | JONES RANCH 157 #2 | HIGHMOUNT EXPL & PROD TEXAS LLC | DRILL | 7,750 | |
| 2009-02-03 | 678095 | 42-435-39167 | JOHNSON 62 #5 | HIGHMOUNT EXPL & PROD TEXAS LLC | DRILL | 5,250 | |
| 2009-02-03 | 678091 | 42-435-39166 | SHURLEY #153 | HIGHMOUNT EXPL & PROD TEXAS LLC | DRILL | 6,475 | |
| 2009-02-03 | 678086 | 42-435-39163 | SHURLEY #147 | HIGHMOUNT EXPL & PROD TEXAS LLC | DRILL | 6,400 | |
| 2009-02-03 | 678083 | 42-435-39165 | SHURLEY #143 | HIGHMOUNT EXPL & PROD TEXAS LLC | DRILL | 6,400 | |
| 2009-02-03 | 678082 | 42-435-39162 | SHURLEY #139 | HIGHMOUNT EXPL & PROD TEXAS LLC | DRILL | 6,450 | |
| 2009-02-03 | 678081 | 42-435-39161 | SHURLEY #152 | HIGHMOUNT EXPL & PROD TEXAS LLC | DRILL | 6,500 | |
| 2009-02-02 | 678026 | 42-435-39159 | HICKS 61 #6 | HIGHMOUNT EXPL & PROD TEXAS LLC | DRILL | 5,250 | |
| 2009-02-02 | 678021 | 42-435-39158 | HICKS 61 #5 | HIGHMOUNT EXPL & PROD TEXAS LLC | DRILL | 5,250 | |
| 2009-01-30 | 677126 | 42-435-39160 | MITTEL RH #12 | HIGHMOUNT EXPL & PROD TEXAS LLC | DRILL | 7,500 | |
| 2009-01-30 | 677023 | 42-435-39146 | MAYER RANCH 40 #8 | HIGHMOUNT EXPL & PROD TEXAS LLC | DRILL | 8,850 | |
| 2009-01-29 | 677501 | 42-435-39155 | HILL-MAYER, EDWIN S JR "P" #8 | HIGHMOUNT EXPL & PROD TEXAS LLC | DRILL | 8,450 | |
| 2009-01-29 | 677128 | 42-435-39147 | MECKEL A #75 | HIGHMOUNT EXPL & PROD TEXAS LLC | DRILL | 6,850 | |
| 2009-01-28 | 677703 | 42-435-39156 | HILL MAYER EDWIN S JR CC #7 | HIGHMOUNT EXPL & PROD TEXAS LLC | DRILL | 8,600 | |
| 2009-01-28 | 677699 | 42-435-39157 | HILL-MAYER, MINNIE H. "C" #8 | HIGHMOUNT EXPL & PROD TEXAS LLC | DRILL | 8,450 | |
| 2009-01-26 | 677320 | 42-435-39152 | PFLUGER SWD #104 | HIGHMOUNT EXPL & PROD TEXAS LLC | DRILL | 8,450 | |
| 2009-01-21 | 677363 | 42-435-39154 | MAYER 15 #23 | HIGHMOUNT EXPL & PROD TEXAS LLC | DRILL | 8,750 | |
| 2009-01-21 | 677361 | 42-435-39153 | MAYER 15 #22 | HIGHMOUNT EXPL & PROD TEXAS LLC | DRILL | 8,750 | |
| 2009-01-20 | 647655 | 42-435-38729 | CUSENBARY 58 #8 | HIGHMOUNT EXPL & PROD TEXAS LLC | DRILL | 6,750 | |
| 2009-01-16 | 677307 | 42-435-39151 | PFLUGER 86 #8 | HIGHMOUNT EXPL & PROD TEXAS LLC | DRILL | 7,250 | |
| 2009-01-14 | 677168 | 42-435-39149 | PFLUGER 110 #12 | HIGHMOUNT EXPL & PROD TEXAS LLC | DRILL | 5,850 | |
| 2009-01-14 | 677163 | 42-435-39150 | PFLUGER 110 #11 | HIGHMOUNT EXPL & PROD TEXAS LLC | DRILL | 7,000 | |
| 2009-01-14 | 677136 | 42-435-39148 | PFLUGER 103 #12 | HIGHMOUNT EXPL & PROD TEXAS LLC | DRILL | 6,750 | |
| 2009-01-09 | 676911 | 42-435-39144 | NICKS GERALD 8 #5 | HIGHMOUNT EXPL & PROD TEXAS LLC | DRILL | 9,150 | |
| 2009-01-07 | 676846 | 42-435-39145 | STEWART SWD #3 | HIGHMOUNT EXPL & PROD TEXAS LLC | DRILL | 7,250 | |
| 2009-01-07 | 676823 | 42-435-39143 | DUNBAR, NED #83 | HIGHMOUNT EXPL & PROD TEXAS LLC | DRILL | 6,600 | |
| 2009-01-05 | 676633 | 42-435-33668 | VANDERSTUCKEN "A" #6 | ZEPHYR LONE STAR OPER CO.,L.L.C. | RECOMP | 4,805 | |
| 2009-01-02 | 675748 | 42-435-39139 | CANYON RANCH 126 #20S | HIGHMOUNT EXPL & PROD TEXAS LLC | DRILL | 7,250 | |
| 2009-01-02 | 675742 | 42-435-39138 | CANYON RANCH 126 #21S | HIGHMOUNT EXPL & PROD TEXAS LLC | DRILL | 7,250 | |
| 2008-12-30 | 676241 | 42-435-39142 | MAYER RANCH 40 #10 | HIGHMOUNT EXPL & PROD TEXAS LLC | DRILL | 8,850 | |
| 2008-12-30 | 676023 | 42-435-39140 | DUNBAR, NED #82 | HIGHMOUNT EXPL & PROD TEXAS LLC | DRILL | 6,600 | |
| 2008-12-16 | 676027 | 42-435-39141 | DUNBAR, NED #86 | HIGHMOUNT EXPL & PROD TEXAS LLC | DRILL | 6,600 | |
| 2008-12-04 | 675732 | 42-435-39137 | CANYON RANCH 126 #19S | HIGHMOUNT EXPL & PROD TEXAS LLC | DRILL | 7,250 | |
| 2008-11-25 | 675410 | 42-435-39352 | FAWCETT 131 #3 | HIGHMOUNT EXPL & PROD TEXAS LLC | DRILL | 8,800 | |
| 2008-11-21 | 675155 | 42-435-39135 | FIELDS 20 #7RD | HIGHMOUNT EXPL & PROD TEXAS LLC | DRILL | 7,600 | |
| 2008-11-21 | 674849 | 42-435-39134 | MAYER RANCH "DD" #2805 | HIGHMOUNT EXPL & PROD TEXAS LLC | DRILL | 8,450 | |
| 2008-11-17 | 674845 | 42-435-39133 | MAYER RANCH "40" #9 | HIGHMOUNT EXPL & PROD TEXAS LLC | DRILL | 8,850 | |
| 2008-11-14 | 674468 | 42-435-39132 | WARD 114 #26X | HIGHMOUNT EXPL & PROD TEXAS LLC | DRILL | 8,250 | |
| 2008-10-28 | 670893 | 42-435-39131 | CANYON RANCH #2163S | HIGHMOUNT EXPL & PROD TEXAS LLC | DRILL | 7,250 | |
| 2008-10-17 | 672918 | 42-435-39125 | MAYER RANCH "CC" #2704 | HIGHMOUNT EXPL & PROD TEXAS LLC | DRILL | 8,500 | |
| 2008-10-17 | 672913 | 42-435-39126 | MAYER RANCH "BB" #2603 | HIGHMOUNT EXPL & PROD TEXAS LLC | DRILL | 8,300 | |
| 2008-10-17 | 672911 | 42-435-39124 | SIMMONS 3 #5 | HIGHMOUNT EXPL & PROD TEXAS LLC | DRILL | 8,450 | |