| 2010-02-04 | 690665 | 42-435-39264 | BLOODWORTH 139 #13 | HIGHMOUNT EXPL & PROD TEXAS LLC | DRILL | 3,300 | |
| 2010-01-21 | 689991 | 42-435-39263 | SAWYER 15 #8 | HIGHMOUNT EXPL & PROD TEXAS LLC | DRILL | 7,700 | |
| 2010-01-21 | 689946 | 42-435-39262 | MAYER RANCH 35 #15 | HIGHMOUNT EXPL & PROD TEXAS LLC | DRILL | 8,900 | |
| 2010-01-21 | 689939 | 42-435-39261 | MAYER RANCH 41 #7 | HIGHMOUNT EXPL & PROD TEXAS LLC | DRILL | 8,900 | |
| 2010-01-15 | 689750 | 42-435-39260 | FAWCETT 130 #13 | HIGHMOUNT EXPL & PROD TEXAS LLC | DRILL | 7,450 | |
| 2010-01-14 | 689698 | 42-435-39259 | SAWYER 15 #7 | HIGHMOUNT EXPL & PROD TEXAS LLC | DRILL | 7,750 | |
| 2010-01-14 | 689684 | 42-435-39258 | BECKER #302 | HIGHMOUNT EXPL & PROD TEXAS LLC | DRILL | 8,900 | |
| 2010-01-12 | 689511 | 42-435-39257 | FAWCETT 130 #14 | HIGHMOUNT EXPL & PROD TEXAS LLC | DRILL | 7,400 | |
| 2010-01-11 | 689476 | 42-435-39256 | LANCASTER 155 #11 | HIGHMOUNT EXPL & PROD TEXAS LLC | DRILL | 6,850 | |
| 2010-01-08 | 689461 | 42-435-39255 | MAYER, EDWIN S. JR. "B" 38 #8 | HIGHMOUNT EXPL & PROD TEXAS LLC | DRILL | 8,900 | |
| 2010-01-08 | 689420 | 42-435-39253 | KELLY 125 #37 | HIGHMOUNT EXPL & PROD TEXAS LLC | DRILL | 7,200 | |
| 2010-01-06 | 689366 | 42-435-39252 | SAWYER-JONES #1402 | HIGHMOUNT EXPL & PROD TEXAS LLC | DRILL | 7,800 | |
| 2010-01-06 | 689366 | 42-435-39252 | SAWYER-JONES #1402 | HIGHMOUNT EXPL & PROD TEXAS LLC | DRILL | 8,800 | |
| 2010-01-06 | 689213 | 42-435-39249 | MITTEL, R. H. #17 | HIGHMOUNT EXPL & PROD TEXAS LLC | DRILL | 7,240 | |
| 2010-01-05 | 689317 | 42-435-39251 | LANCASTER 155 #10 | HIGHMOUNT EXPL & PROD TEXAS LLC | DRILL | 6,850 | |
| 2010-01-05 | 689195 | 42-435-39248 | SHANNON 52 #23 | HIGHMOUNT EXPL & PROD TEXAS LLC | DRILL | 8,350 | |
| 2010-01-04 | 689247 | 42-435-39250 | SAWYER-JONES 190 #13 | HIGHMOUNT EXPL & PROD TEXAS LLC | DRILL | 9,200 | |
| 2010-01-04 | 689247 | 42-435-39250 | SAWYER-JONES 190 #13 | HIGHMOUNT EXPL & PROD TEXAS LLC | DRILL | 9,200 | |
| 2009-12-30 | 689161 | 42-435-39247 | DIEBITSCH 70 #17 | HIGHMOUNT EXPL & PROD TEXAS LLC | DRILL | 8,400 | |
| 2009-12-17 | 688756 | 42-435-39246 | NICKS GERALD 5 #12 | HIGHMOUNT EXPL & PROD TEXAS LLC | DRILL | 8,950 | |
| 2009-12-10 | 688357 | 42-435-39245 | SIMMONS 3 #2 | HIGHMOUNT EXPL & PROD TEXAS LLC | DRILL | 8,400 | |
| 2009-12-04 | 688164 | 42-435-39244 | MITTEL, R.H. #6 | HIGHMOUNT EXPL & PROD TEXAS LLC | DRILL | 7,250 | |
| 2009-12-03 | 688138 | 42-435-39243 | MITTEL #1272 | HIGHMOUNT EXPL & PROD TEXAS LLC | DRILL | 7,150 | |
| 2009-12-03 | 688138 | 42-435-39243 | MITTEL #1272 | HIGHMOUNT EXPL & PROD TEXAS LLC | DRILL | 7,150 | |
| 2009-12-03 | 687999 | 42-435-39238 | SIMMONS 3 #4 | HIGHMOUNT EXPL & PROD TEXAS LLC | DRILL | 8,350 | |
| 2009-12-02 | 688057 | 42-435-39242 | HOLMAN #2611 | HIGHMOUNT EXPL & PROD TEXAS LLC | DRILL | 7,300 | |
| 2009-12-02 | 687881 | 42-435-39239 | CAUTHORN 17 #6 | HIGHMOUNT EXPL & PROD TEXAS LLC | DRILL | 7,500 | |
| 2009-12-02 | 687879 | 42-435-39240 | MAYER RANCH 40 #6 | HIGHMOUNT EXPL & PROD TEXAS LLC | DRILL | 8,650 | |
| 2009-12-01 | 688050 | 42-435-39241 | WILSON DUKE #3417 | HIGHMOUNT EXPL & PROD TEXAS LLC | DRILL | 7,000 | |
| 2009-12-01 | 688050 | 42-435-39241 | WILSON DUKE #3417 | HIGHMOUNT EXPL & PROD TEXAS LLC | DRILL | 7,000 | |
| 2009-11-30 | 687976 | 42-435-39237 | REINHARDT 6 #17 | HIGHMOUNT EXPL & PROD TEXAS LLC | DRILL | 4,200 | |
| 2009-11-25 | 687886 | 42-435-39236 | DEBERRY HEIRS #14 | HIGHMOUNT EXPL & PROD TEXAS LLC | DRILL | 6,800 | |
| 2009-11-25 | 687864 | 42-435-39235 | CAUTHORN RANCH 134 #3 | HIGHMOUNT EXPL & PROD TEXAS LLC | DRILL | 8,000 | |
| 2009-11-24 | 687497 | 42-435-39234 | WILSON DUKE 177 #10 | HIGHMOUNT EXPL & PROD TEXAS LLC | DRILL | 9,100 | |
| 2009-11-23 | 687477 | 42-435-39233 | MAYER RANCH 36 #2 | HIGHMOUNT EXPL & PROD TEXAS LLC | DRILL | 8,750 | |
| 2009-11-18 | 687531 | 42-435-39232 | HOLMAN #2610 | HIGHMOUNT EXPL & PROD TEXAS LLC | DRILL | 7,650 | |
| 2009-11-18 | 687346 | 42-435-39231 | DEBERRY HEIRS #15 | HIGHMOUNT EXPL & PROD TEXAS LLC | DRILL | 7,050 | |
| 2009-11-16 | 687180 | 42-435-39230 | HOLMAN 25 #3 | HIGHMOUNT EXPL & PROD TEXAS LLC | DRILL | 7,650 | |
| 2009-11-16 | 687144 | 42-435-39229 | MAYER RANCH 35 #16 | HIGHMOUNT EXPL & PROD TEXAS LLC | DRILL | 8,950 | |
| 2009-11-16 | 687144 | 42-435-39229 | MAYER RANCH 35 #16 | HIGHMOUNT EXPL & PROD TEXAS LLC | DRILL | 8,950 | |
| 2009-11-12 | 687061 | 42-435-39228 | WILSON DUKE #1537 | HIGHMOUNT EXPL & PROD TEXAS LLC | DRILL | 7,500 | |
| 2009-11-12 | 687037 | 42-435-39227 | MAYER RANCH 40 #5 | HIGHMOUNT EXPL & PROD TEXAS LLC | DRILL | 8,550 | |
| 2009-11-09 | 686867 | 42-435-39226 | MAYER RANCH 35 #17 | HIGHMOUNT EXPL & PROD TEXAS LLC | DRILL | 8,800 | |
| 2009-10-21 | 686386 | 42-435-39225 | WILSON DUKE #3416 | HIGHMOUNT EXPL & PROD TEXAS LLC | DRILL | 6,950 | |
| 2009-10-20 | 686341 | 42-435-39224 | WILSON DUKE #3409 | HIGHMOUNT EXPL & PROD TEXAS LLC | DRILL | 7,000 | |
| 2009-10-20 | 686035 | 42-435-39220 | SHURLEY #164 | HIGHMOUNT EXPL & PROD TEXAS LLC | DRILL | 6,450 | |
| 2009-10-16 | 686178 | 42-435-39223 | LANCASTER 155 #8 | HIGHMOUNT EXPL & PROD TEXAS LLC | DRILL | 7,800 | |
| 2009-10-15 | 686112 | 42-435-39221 | WARD #80 | HIGHMOUNT EXPL & PROD TEXAS LLC | DRILL | 7,850 | |
| 2009-10-14 | 686111 | 42-435-39222 | LANCASTER 155 #9 | HIGHMOUNT EXPL & PROD TEXAS LLC | DRILL | 7,800 | |
| 2009-09-29 | 685585 | 42-435-39219 | CANYON RANCH 127 #10S | HIGHMOUNT EXPL & PROD TEXAS LLC | DRILL | 6,570 | |