| 690665 | Feb 4, 2010 | Feb 4, 2010 | Highmount Expl & Prod Texas LLC | Bloodworth 139 #13 | 3,300 | 43539264 |
| 689991 | Jan 21, 2010 | Jan 21, 2010 | Highmount Expl & Prod Texas LLC | Sawyer 15 #8 | 7,700 | 43539263 |
| 689946 | Jan 21, 2010 | Jan 21, 2010 | Highmount Expl & Prod Texas LLC | Mayer Ranch 35 #15 | 8,900 | 43539262 |
| 689939 | Jan 21, 2010 | Jan 21, 2010 | Highmount Expl & Prod Texas LLC | Mayer Ranch 41 #7 | 8,900 | 43539261 |
| 689750 | Jan 15, 2010 | Jan 15, 2010 | Highmount Expl & Prod Texas LLC | Fawcett 130 #13 | 7,450 | 43539260 |
| 689698 | Jan 14, 2010 | Jan 14, 2010 | Highmount Expl & Prod Texas LLC | Sawyer 15 #7 | 7,750 | 43539259 |
| 689684 | Jan 14, 2010 | Jan 14, 2010 | Highmount Expl & Prod Texas LLC | Becker #302 | 8,900 | 43539258 |
| 689511 | Jan 12, 2010 | Jan 12, 2010 | Highmount Expl & Prod Texas LLC | Fawcett 130 #14 | 7,400 | 43539257 |
| 689476 | Jan 11, 2010 | Jan 11, 2010 | Highmount Expl & Prod Texas LLC | Lancaster 155 #11 | 6,850 | 43539256 |
| 689461 | Jan 8, 2010 | Jan 8, 2010 | Highmount Expl & Prod Texas LLC | Mayer, Edwin S. Jr. "B" 38 #8 | 8,900 | 43539255 |
| 689420 | Jan 8, 2010 | Jan 8, 2010 | Highmount Expl & Prod Texas LLC | Kelly 125 #37 | 7,200 | 43539253 |
| 689366 | Jan 6, 2010 | Jan 6, 2010 | Highmount Expl & Prod Texas LLC | Sawyer-Jones #1402 | 7,800 | 43539252 |
| 689366Amendment | Jan 6, 2010 | Jan 6, 2010 | Highmount Expl & Prod Texas LLC | Sawyer-Jones #1402 | 8,800 | 43539252 |
| 689213 | Jan 6, 2010 | Jan 6, 2010 | Highmount Expl & Prod Texas LLC | Mittel, R. H. #17 | 7,240 | 43539249 |
| 689317 | Jan 5, 2010 | Jan 5, 2010 | Highmount Expl & Prod Texas LLC | Lancaster 155 #10 | 6,850 | 43539251 |
| 689195 | Jan 5, 2010 | Jan 5, 2010 | Highmount Expl & Prod Texas LLC | Shannon 52 #23 | 8,350 | 43539248 |
| 689247 | Jan 4, 2010 | Jan 4, 2010 | Highmount Expl & Prod Texas LLC | Sawyer-Jones 190 #13 | 9,200 | 43539250 |
| 689247Amendment | Jan 4, 2010 | Jan 4, 2010 | Highmount Expl & Prod Texas LLC | Sawyer-Jones 190 #13 | 9,200 | 43539250 |
| 689161 | Dec 30, 2009 | Dec 30, 2009 | Highmount Expl & Prod Texas LLC | Diebitsch 70 #17 | 8,400 | 43539247 |
| 688756 | Dec 17, 2009 | Dec 17, 2009 | Highmount Expl & Prod Texas LLC | Nicks Gerald 5 #12 | 8,950 | 43539246 |
| 688357 | Dec 10, 2009 | Dec 10, 2009 | Highmount Expl & Prod Texas LLC | Simmons 3 #2 | 8,400 | 43539245 |
| 688164 | Dec 4, 2009 | Dec 4, 2009 | Highmount Expl & Prod Texas LLC | Mittel, R.H. #6 | 7,250 | 43539244 |
| 688138 | Dec 3, 2009 | Dec 3, 2009 | Highmount Expl & Prod Texas LLC | Mittel #1272 | 7,150 | 43539243 |
| 688138Amendment | Dec 3, 2009 | Dec 3, 2009 | Highmount Expl & Prod Texas LLC | Mittel #1272 | 7,150 | 43539243 |
| 687999 | Dec 3, 2009 | Dec 3, 2009 | Highmount Expl & Prod Texas LLC | Simmons 3 #4 | 8,350 | 43539238 |
| 688057 | Dec 2, 2009 | Dec 2, 2009 | Highmount Expl & Prod Texas LLC | Holman #2611 | 7,300 | 43539242 |
| 687881 | Dec 2, 2009 | Dec 2, 2009 | Highmount Expl & Prod Texas LLC | Cauthorn 17 #6 | 7,500 | 43539239 |
| 687879 | Dec 2, 2009 | Dec 2, 2009 | Highmount Expl & Prod Texas LLC | Mayer Ranch 40 #6 | 8,650 | 43539240 |
| 688050 | Dec 1, 2009 | Dec 1, 2009 | Highmount Expl & Prod Texas LLC | Wilson Duke #3417 | 7,000 | 43539241 |
| 688050Amendment | Dec 1, 2009 | Dec 1, 2009 | Highmount Expl & Prod Texas LLC | Wilson Duke #3417 | 7,000 | 43539241 |
| 687976 | Nov 30, 2009 | Nov 30, 2009 | Highmount Expl & Prod Texas LLC | Reinhardt 6 #17 | 4,200 | 43539237 |
| 687886 | Nov 25, 2009 | Nov 25, 2009 | Highmount Expl & Prod Texas LLC | Deberry Heirs #14 | 6,800 | 43539236 |
| 687864 | Nov 25, 2009 | Nov 25, 2009 | Highmount Expl & Prod Texas LLC | Cauthorn Ranch 134 #3 | 8,000 | 43539235 |
| 687497 | Nov 24, 2009 | Nov 24, 2009 | Highmount Expl & Prod Texas LLC | Wilson Duke 177 #10 | 9,100 | 43539234 |
| 687477 | Nov 23, 2009 | Nov 23, 2009 | Highmount Expl & Prod Texas LLC | Mayer Ranch 36 #2 | 8,750 | 43539233 |
| 687531 | Nov 18, 2009 | Nov 18, 2009 | Highmount Expl & Prod Texas LLC | Holman #2610 | 7,650 | 43539232 |
| 687346 | Nov 18, 2009 | Nov 18, 2009 | Highmount Expl & Prod Texas LLC | Deberry Heirs #15 | 7,050 | 43539231 |
| 687180 | Nov 16, 2009 | Nov 16, 2009 | Highmount Expl & Prod Texas LLC | Holman 25 #3 | 7,650 | 43539230 |
| 687144 | Nov 16, 2009 | Nov 16, 2009 | Highmount Expl & Prod Texas LLC | Mayer Ranch 35 #16 | 8,950 | 43539229 |
| 687144Amendment | Nov 16, 2009 | Nov 16, 2009 | Highmount Expl & Prod Texas LLC | Mayer Ranch 35 #16 | 8,950 | 43539229 |
| 687061 | Nov 12, 2009 | Nov 12, 2009 | Highmount Expl & Prod Texas LLC | Wilson Duke #1537 | 7,500 | 43539228 |
| 687037 | Nov 12, 2009 | Nov 12, 2009 | Highmount Expl & Prod Texas LLC | Mayer Ranch 40 #5 | 8,550 | 43539227 |
| 686867 | Nov 9, 2009 | Nov 9, 2009 | Highmount Expl & Prod Texas LLC | Mayer Ranch 35 #17 | 8,800 | 43539226 |
| 686386 | Oct 21, 2009 | Oct 21, 2009 | Highmount Expl & Prod Texas LLC | Wilson Duke #3416 | 6,950 | 43539225 |
| 686341 | Oct 20, 2009 | Oct 20, 2009 | Highmount Expl & Prod Texas LLC | Wilson Duke #3409 | 7,000 | 43539224 |
| 686035 | Oct 20, 2009 | Oct 20, 2009 | Highmount Expl & Prod Texas LLC | Shurley #164 | 6,450 | 43539220 |
| 686178 | Oct 16, 2009 | Oct 16, 2009 | Highmount Expl & Prod Texas LLC | Lancaster 155 #8 | 7,800 | 43539223 |
| 686112 | Oct 15, 2009 | Oct 15, 2009 | Highmount Expl & Prod Texas LLC | Ward #80 | 7,850 | 43539221 |
| 686111 | Oct 14, 2009 | Oct 14, 2009 | Highmount Expl & Prod Texas LLC | Lancaster 155 #9 | 7,800 | 43539222 |
| 685585 | Sep 29, 2009 | Sep 29, 2009 | Highmount Expl & Prod Texas LLC | Canyon Ranch 127 #10S | 6,570 | 43539219 |
| 685422 | Sep 23, 2009 | Sep 23, 2009 | Highmount Expl & Prod Texas LLC | Canyon Ranch #1279S | 6,750 | 43539218 |
| 685410 | Sep 23, 2009 | Sep 23, 2009 | Highmount Expl & Prod Texas LLC | Canyon Ranch #1274S | 6,750 | 43539217 |
| 685328 | Sep 22, 2009 | Sep 22, 2009 | Highmount Expl & Prod Texas LLC | Mittel, R.H. #15 | 7,300 | 43539216 |
| 685244 | Sep 21, 2009 | Sep 21, 2009 | Highmount Expl & Prod Texas LLC | Mittel, R.H. #16 | 7,450 | 43539215 |
| 685137 | Sep 16, 2009 | Sep 16, 2009 | Highmount Expl & Prod Texas LLC | Simmons 3 #12 | 8,350 | 43539214 |
| 685126 | Sep 15, 2009 | Sep 15, 2009 | Highmount Expl & Prod Texas LLC | Mrs May M Ray #5 | 9,700 | 43539213 |
| 685069 | Sep 14, 2009 | Sep 14, 2009 | Highmount Expl & Prod Texas LLC | Hill - May M Ray "I " #3 | 9,550 | 43539212 |
| 684543 | Aug 28, 2009 | Aug 28, 2009 | Highmount Expl & Prod Texas LLC | Simmons 72 #19 | 8,450 | 43539211 |
| 684530 | Aug 27, 2009 | Aug 27, 2009 | Highmount Expl & Prod Texas LLC | Wilson Duke 176 #16 | 8,850 | 43539210 |
| 684289 | Aug 20, 2009 | Aug 20, 2009 | Highmount Expl & Prod Texas LLC | Nicks, Gerald 8 #7 | 8,800 | 43539209 |
| 684242 | Aug 20, 2009 | Aug 20, 2009 | Highmount Expl & Prod Texas LLC | Lancaster 3 #7 | 6,800 | 43539208 |
| 684240 | Aug 20, 2009 | Aug 20, 2009 | Highmount Expl & Prod Texas LLC | Lancaster 3 #6 | 6,800 | 43539207 |
| 684167 | Aug 20, 2009 | Aug 20, 2009 | Highmount Expl & Prod Texas LLC | Mayer Ranch 36 #7 | 8,900 | 43539206 |
| 684043 | Aug 18, 2009 | Aug 18, 2009 | Highmount Expl & Prod Texas LLC | Hill-Vanderstucken, Joe M. #5 | 8,900 | 43539205 |
| 683751 | Aug 13, 2009 | Aug 13, 2009 | Highmount Expl & Prod Texas LLC | Keene C #3 | 8,950 | 43539204 |
| 683624 | Aug 4, 2009 | Aug 4, 2009 | Highmount Expl & Prod Texas LLC | Simmons 73 #13 | 8,350 | 43539203 |
| 683597 | Aug 4, 2009 | Aug 4, 2009 | Highmount Expl & Prod Texas LLC | Mayer #58 | 8,700 | 43539202 |
| 683594 | Aug 3, 2009 | Aug 3, 2009 | Highmount Expl & Prod Texas LLC | Shurley #148 | 6,400 | 43539201 |
| 683368 | Jul 29, 2009 | Jul 29, 2009 | Highmount Expl & Prod Texas LLC | Mayer Minnie H #10 | 8,600 | 43539199 |
| 683366 | Jul 29, 2009 | Jul 29, 2009 | Highmount Expl & Prod Texas LLC | Mayer Minnie H #9 | 8,450 | 43539200 |
| 683146 | Jul 28, 2009 | Jul 28, 2009 | Highmount Expl & Prod Texas LLC | Wilson Duke 176 #15 | 8,900 | 43539195 |
| 682744 | Jul 24, 2009 | Jul 24, 2009 | Highmount Expl & Prod Texas LLC | Shurley 110 #22 | 7,200 | 43539187 |
| 683339 | Jul 23, 2009 | Jul 23, 2009 | Highmount Expl & Prod Texas LLC | Collier Shurley #21 | 6,400 | 43539197 |
| 683337 | Jul 23, 2009 | Jul 23, 2009 | Highmount Expl & Prod Texas LLC | Collier Shurley #20 | 6,500 | 43539198 |
| 683334 | Jul 23, 2009 | Jul 23, 2009 | Highmount Expl & Prod Texas LLC | Mayer, Edwin S Jr K #12 | 8,200 | 43539196 |
| 683112 | Jul 23, 2009 | Jul 23, 2009 | Highmount Expl & Prod Texas LLC | Wilson Duke 176 #13 | 8,850 | 43539194 |
| 683111 | Jul 21, 2009 | Jul 21, 2009 | Highmount Expl & Prod Texas LLC | Wilson Duke #1753 | 8,850 | 43539193 |
| 682746 | Jul 17, 2009 | Jul 17, 2009 | Highmount Expl & Prod Texas LLC | Shurley 110 #25 | 7,050 | 43539189 |
| 682614 | Jul 16, 2009 | Jul 16, 2009 | Highmount Expl & Prod Texas LLC | Mayer 17 #11 | 8,600 | 43539190 |
| 683018 | Jul 15, 2009 | Jul 15, 2009 | Highmount Expl & Prod Texas LLC | Mayer 1028 #3 | 8,600 | 43539192 |
| 682989 | Jul 14, 2009 | Jul 14, 2009 | Highmount Expl & Prod Texas LLC | Jones Ranch 157 #3 | 3,500 | 43539191 |
| 682747 | Jul 8, 2009 | Jul 8, 2009 | Highmount Expl & Prod Texas LLC | Shurley 110 #26 | 7,150 | 43539188 |
| 682720 | Jul 8, 2009 | Jul 8, 2009 | Highmount Expl & Prod Texas LLC | Mayer 18 #9 | 8,600 | 43539186 |
| 682713 | Jul 3, 2009 | Jul 3, 2009 | Highmount Expl & Prod Texas LLC | Wilson, Duke 176 #12 | 8,850 | 43539185 |
| 682589 | Jul 2, 2009 | Jul 2, 2009 | Highmount Expl & Prod Texas LLC | Wilson Duke #1778 | 8,950 | 43539184 |
| 682122 | Jun 26, 2009 | Jun 26, 2009 | Highmount Expl & Prod Texas LLC | Epps 48 #5 | 7,650 | 43539180 |
| 682392 | Jun 25, 2009 | Jun 25, 2009 | Highmount Expl & Prod Texas LLC | Wilson Duke 183 #9 | 9,250 | 43539182 |
| 682402 | Jun 24, 2009 | Jun 24, 2009 | Highmount Expl & Prod Texas LLC | Hill Ray May E #3 | 9,650 | 43539183 |
| 682124 | Jun 17, 2009 | Jun 17, 2009 | Highmount Expl & Prod Texas LLC | Cauthorn 17 #5 | 7,950 | 43539181 |
| 682039 | Jun 12, 2009 | Jun 12, 2009 | Highmount Expl & Prod Texas LLC | Morriss 63 #9SW | 8,250 | 43539179 |
| 681872 | Jun 8, 2009 | Jun 8, 2009 | Highmount Expl & Prod Texas LLC | Cauthorn Ranch 26 #1 | 8,650 | 43539178 |
| 681871 | Jun 8, 2009 | Jun 8, 2009 | Highmount Expl & Prod Texas LLC | Cauthorn Ranch 134 #4 | 8,450 | 43539177 |
| 681137 | May 13, 2009 | May 13, 2009 | Highmount Expl & Prod Texas LLC | Mayer Ranch 35 #14 | 8,850 | 43539176 |
| 680631 | May 5, 2009 | May 5, 2009 | Highmount Expl & Prod Texas LLC | Richardson 134 #1 | 2,100 | 43532207 |
| 680662 | May 4, 2009 | May 4, 2009 | Highmount Expl & Prod Texas LLC | Nicks Gerald 8 #6 | 8,850 | 43539175 |
| 669387Amendment | Apr 27, 2009 | Apr 27, 2009 | Highmount Expl & Prod Texas LLC | Ward 127 #20 | 8,700 | 43539078 |
| 680393 | Apr 17, 2009 | Apr 17, 2009 | Highmount Expl & Prod Texas LLC | Epps, HC SWD #3801 | 8,000 | 43530359 |
| 679843 | Apr 14, 2009 | Apr 14, 2009 | Highmount Expl & Prod Texas LLC | Harrison, D. J. #1 | 8,220 | 43500090 |
| 678834Amendment | Apr 6, 2009 | Apr 6, 2009 | Highmount Expl & Prod Texas LLC | Mayer Ranch 36 #4 | 8,750 | 43539173 |
| 679774 | Mar 26, 2009 | Mar 26, 2009 | Highmount Expl & Prod Texas LLC | McMillian, W.B. "10" #18 | 7,250 | 43539174 |