| 684568 | Sep 1, 2009 | Sep 1, 2009 | Highmount Expl & Prod Texas LLC | Schleicher | Mayer, Edwin S. Jr. "E" #31 | 8,600 | 41332598 |
| 684543 | Aug 28, 2009 | Aug 28, 2009 | Highmount Expl & Prod Texas LLC | Sutton | Simmons 72 #19 | 8,450 | 43539211 |
| 684532 | Aug 27, 2009 | Aug 27, 2009 | Highmount Expl & Prod Texas LLC | Schleicher | Mayer, Edwin S. Jr. "E" #29 | 8,600 | 41332596 |
| 684530 | Aug 27, 2009 | Aug 27, 2009 | Highmount Expl & Prod Texas LLC | Sutton | Wilson Duke 176 #16 | 8,850 | 43539210 |
| 684289 | Aug 20, 2009 | Aug 20, 2009 | Highmount Expl & Prod Texas LLC | Sutton | Nicks, Gerald 8 #7 | 8,800 | 43539209 |
| 684242 | Aug 20, 2009 | Aug 20, 2009 | Highmount Expl & Prod Texas LLC | Sutton | Lancaster 3 #7 | 6,800 | 43539208 |
| 684240 | Aug 20, 2009 | Aug 20, 2009 | Highmount Expl & Prod Texas LLC | Sutton | Lancaster 3 #6 | 6,800 | 43539207 |
| 684167 | Aug 20, 2009 | Aug 20, 2009 | Highmount Expl & Prod Texas LLC | Sutton | Mayer Ranch 36 #7 | 8,900 | 43539206 |
| 684043 | Aug 18, 2009 | Aug 18, 2009 | Highmount Expl & Prod Texas LLC | Sutton | Hill-Vanderstucken, Joe M. #5 | 8,900 | 43539205 |
| 683850 | Aug 13, 2009 | Aug 13, 2009 | Highmount Expl & Prod Texas LLC | Edwards | Canyon Ranch 112 #9E | 7,150 | 13732022 |
| 683751 | Aug 13, 2009 | Aug 13, 2009 | Highmount Expl & Prod Texas LLC | Sutton | Keene C #3 | 8,950 | 43539204 |
| 683857 | Aug 7, 2009 | Aug 7, 2009 | Highmount Expl & Prod Texas LLC | Edwards | Canyon Ranch #9015E | 7,350 | 13732024 |
| 683624 | Aug 4, 2009 | Aug 4, 2009 | Highmount Expl & Prod Texas LLC | Sutton | Simmons 73 #13 | 8,350 | 43539203 |
| 683597 | Aug 4, 2009 | Aug 4, 2009 | Highmount Expl & Prod Texas LLC | Sutton | Mayer #58 | 8,700 | 43539202 |
| 683594 | Aug 3, 2009 | Aug 3, 2009 | Highmount Expl & Prod Texas LLC | Sutton | Shurley #148 | 6,400 | 43539201 |
| 683368 | Jul 29, 2009 | Jul 29, 2009 | Highmount Expl & Prod Texas LLC | Sutton | Mayer Minnie H #10 | 8,600 | 43539199 |
| 683366 | Jul 29, 2009 | Jul 29, 2009 | Highmount Expl & Prod Texas LLC | Sutton | Mayer Minnie H #9 | 8,450 | 43539200 |
| 683146 | Jul 28, 2009 | Jul 28, 2009 | Highmount Expl & Prod Texas LLC | Sutton | Wilson Duke 176 #15 | 8,900 | 43539195 |
| 682744 | Jul 24, 2009 | Jul 24, 2009 | Highmount Expl & Prod Texas LLC | Sutton | Shurley 110 #22 | 7,200 | 43539187 |
| 683339 | Jul 23, 2009 | Jul 23, 2009 | Highmount Expl & Prod Texas LLC | Sutton | Collier Shurley #21 | 6,400 | 43539197 |
| 683337 | Jul 23, 2009 | Jul 23, 2009 | Highmount Expl & Prod Texas LLC | Sutton | Collier Shurley #20 | 6,500 | 43539198 |
| 683334 | Jul 23, 2009 | Jul 23, 2009 | Highmount Expl & Prod Texas LLC | Sutton | Mayer, Edwin S Jr K #12 | 8,200 | 43539196 |
| 683112 | Jul 23, 2009 | Jul 23, 2009 | Highmount Expl & Prod Texas LLC | Sutton | Wilson Duke 176 #13 | 8,850 | 43539194 |
| 683111 | Jul 21, 2009 | Jul 21, 2009 | Highmount Expl & Prod Texas LLC | Sutton | Wilson Duke #1753 | 8,850 | 43539193 |
| 682746 | Jul 17, 2009 | Jul 17, 2009 | Highmount Expl & Prod Texas LLC | Sutton | Shurley 110 #25 | 7,050 | 43539189 |
| 682614 | Jul 16, 2009 | Jul 16, 2009 | Highmount Expl & Prod Texas LLC | Sutton | Mayer 17 #11 | 8,600 | 43539190 |
| 683018 | Jul 15, 2009 | Jul 15, 2009 | Highmount Expl & Prod Texas LLC | Sutton | Mayer 1028 #3 | 8,600 | 43539192 |
| 682989 | Jul 14, 2009 | Jul 14, 2009 | Highmount Expl & Prod Texas LLC | Sutton | Jones Ranch 157 #3 | 3,500 | 43539191 |
| 682747 | Jul 8, 2009 | Jul 8, 2009 | Highmount Expl & Prod Texas LLC | Sutton | Shurley 110 #26 | 7,150 | 43539188 |
| 682720 | Jul 8, 2009 | Jul 8, 2009 | Highmount Expl & Prod Texas LLC | Sutton | Mayer 18 #9 | 8,600 | 43539186 |
| 682713 | Jul 3, 2009 | Jul 3, 2009 | Highmount Expl & Prod Texas LLC | Sutton | Wilson, Duke 176 #12 | 8,850 | 43539185 |
| 682589 | Jul 2, 2009 | Jul 2, 2009 | Highmount Expl & Prod Texas LLC | Sutton | Wilson Duke #1778 | 8,950 | 43539184 |
| 682122 | Jun 26, 2009 | Jun 26, 2009 | Highmount Expl & Prod Texas LLC | Sutton | Epps 48 #5 | 7,650 | 43539180 |
| 682392 | Jun 25, 2009 | Jun 25, 2009 | Highmount Expl & Prod Texas LLC | Sutton | Wilson Duke 183 #9 | 9,250 | 43539182 |
| 682402 | Jun 24, 2009 | Jun 24, 2009 | Highmount Expl & Prod Texas LLC | Sutton | Hill Ray May E #3 | 9,650 | 43539183 |
| 682124 | Jun 17, 2009 | Jun 17, 2009 | Highmount Expl & Prod Texas LLC | Sutton | Cauthorn 17 #5 | 7,950 | 43539181 |
| 682062 | Jun 12, 2009 | Jun 12, 2009 | Highmount Expl & Prod Texas LLC | Schleicher | Mayer Edwin S Jr 27 #2 | 8,900 | 41332592 |
| 682062Amendment | Jun 12, 2009 | Jun 12, 2009 | Highmount Expl & Prod Texas LLC | Schleicher | Mayer Edwin S Jr 27 #2 | 9,800 | 41332592 |
| 682039 | Jun 12, 2009 | Jun 12, 2009 | Highmount Expl & Prod Texas LLC | Sutton | Morriss 63 #9SW | 8,250 | 43539179 |
| 681872 | Jun 8, 2009 | Jun 8, 2009 | Highmount Expl & Prod Texas LLC | Sutton | Cauthorn Ranch 26 #1 | 8,650 | 43539178 |
| 681871 | Jun 8, 2009 | Jun 8, 2009 | Highmount Expl & Prod Texas LLC | Sutton | Cauthorn Ranch 134 #4 | 8,450 | 43539177 |
| 681758 | Jun 8, 2009 | Jun 8, 2009 | Highmount Expl & Prod Texas LLC | Schleicher | Hill Mayer Edwin S Jr OO #2 | 8,550 | 41332591 |
| 681137 | May 13, 2009 | May 13, 2009 | Highmount Expl & Prod Texas LLC | Sutton | Mayer Ranch 35 #14 | 8,850 | 43539176 |
| 680631 | May 5, 2009 | May 5, 2009 | Highmount Expl & Prod Texas LLC | Sutton | Richardson 134 #1 | 2,100 | 43532207 |
| 680662 | May 4, 2009 | May 4, 2009 | Highmount Expl & Prod Texas LLC | Sutton | Nicks Gerald 8 #6 | 8,850 | 43539175 |
| 669387Amendment | Apr 27, 2009 | Apr 27, 2009 | Highmount Expl & Prod Texas LLC | Sutton | Ward 127 #20 | 8,700 | 43539078 |
| 680393 | Apr 17, 2009 | Apr 17, 2009 | Highmount Expl & Prod Texas LLC | Sutton | Epps, HC SWD #3801 | 8,000 | 43530359 |
| 679843 | Apr 14, 2009 | Apr 14, 2009 | Highmount Expl & Prod Texas LLC | Sutton | Harrison, D. J. #1 | 8,220 | 43500090 |
| 678834Amendment | Apr 6, 2009 | Apr 6, 2009 | Highmount Expl & Prod Texas LLC | Sutton | Mayer Ranch 36 #4 | 8,750 | 43539173 |
| 679774 | Mar 26, 2009 | Mar 26, 2009 | Highmount Expl & Prod Texas LLC | Sutton | McMillian, W.B. "10" #18 | 7,250 | 43539174 |
| 678153Amendment | Mar 12, 2009 | Mar 12, 2009 | Highmount Expl & Prod Texas LLC | Sutton | Jones Ranch 157 #2 | 7,750 | 43539170 |
| 678834 | Feb 27, 2009 | Feb 27, 2009 | Highmount Expl & Prod Texas LLC | Sutton | Mayer Ranch 36 #4 | 8,750 | 43539173 |
| 678017 | Feb 26, 2009 | Feb 26, 2009 | Highmount Expl & Prod Texas LLC | Sutton | Bloodworth 140 #7 | 7,700 | 43535259 |
| 678667 | Feb 25, 2009 | Feb 25, 2009 | Highmount Expl & Prod Texas LLC | Edwards | Four Square Ranch B #543E | 7,800 | 13731740 |
| 678626 | Feb 19, 2009 | Feb 19, 2009 | Highmount Expl & Prod Texas LLC | Schleicher | Mayer, Edwin S. Jr. N #13 | 8,850 | 41332583 |
| 678620 | Feb 19, 2009 | Feb 19, 2009 | Highmount Expl & Prod Texas LLC | Crockett | University 56 13 #1 | 8,950 | 10540983 |
| 678560 | Feb 13, 2009 | Feb 13, 2009 | Highmount Expl & Prod Texas LLC | Sutton | Cauthorn 17 #4 | 7,700 | 43539172 |
| 678274 | Feb 6, 2009 | Feb 6, 2009 | Highmount Expl & Prod Texas LLC | Sutton | Stewart #319 | 4,850 | 43539171 |
| 678087 | Feb 6, 2009 | Feb 6, 2009 | Highmount Expl & Prod Texas LLC | Sutton | Shurley #149 | 6,450 | 43539164 |
| 668957Amendment | Feb 6, 2009 | Feb 6, 2009 | Highmount Expl & Prod Texas LLC | Schleicher | Nolen Partners A #1282 | 7,450 | 41330653 |
| 678174 | Feb 5, 2009 | Feb 5, 2009 | Highmount Expl & Prod Texas LLC | Sutton | Friess 8 #5 | 6,250 | 43539169 |
| 678173 | Feb 5, 2009 | Feb 5, 2009 | Highmount Expl & Prod Texas LLC | Sutton | Friess 8 #6 | 6,250 | 43539168 |
| 678153 | Feb 5, 2009 | Feb 5, 2009 | Highmount Expl & Prod Texas LLC | Sutton | Jones Ranch 157 #2 | 7,750 | 43539170 |
| 678095 | Feb 3, 2009 | Feb 3, 2009 | Highmount Expl & Prod Texas LLC | Sutton | Johnson 62 #5 | 5,250 | 43539167 |
| 678091 | Feb 3, 2009 | Feb 3, 2009 | Highmount Expl & Prod Texas LLC | Sutton | Shurley #153 | 6,475 | 43539166 |
| 678086 | Feb 3, 2009 | Feb 3, 2009 | Highmount Expl & Prod Texas LLC | Sutton | Shurley #147 | 6,400 | 43539163 |
| 678083 | Feb 3, 2009 | Feb 3, 2009 | Highmount Expl & Prod Texas LLC | Sutton | Shurley #143 | 6,400 | 43539165 |
| 678082 | Feb 3, 2009 | Feb 3, 2009 | Highmount Expl & Prod Texas LLC | Sutton | Shurley #139 | 6,450 | 43539162 |
| 678081 | Feb 3, 2009 | Feb 3, 2009 | Highmount Expl & Prod Texas LLC | Sutton | Shurley #152 | 6,500 | 43539161 |
| 678026 | Feb 2, 2009 | Feb 2, 2009 | Highmount Expl & Prod Texas LLC | Sutton | Hicks 61 #6 | 5,250 | 43539159 |
| 678021 | Feb 2, 2009 | Feb 2, 2009 | Highmount Expl & Prod Texas LLC | Sutton | Hicks 61 #5 | 5,250 | 43539158 |
| 677126 | Jan 30, 2009 | Jan 30, 2009 | Highmount Expl & Prod Texas LLC | Sutton | Mittel RH #12 | 7,500 | 43539160 |
| 677023 | Jan 30, 2009 | Jan 30, 2009 | Highmount Expl & Prod Texas LLC | Sutton | Mayer Ranch 40 #8 | 8,850 | 43539146 |
| 677501 | Jan 29, 2009 | Jan 29, 2009 | Highmount Expl & Prod Texas LLC | Sutton | Hill-Mayer, Edwin S Jr "P" #8 | 8,450 | 43539155 |
| 677128 | Jan 29, 2009 | Jan 29, 2009 | Highmount Expl & Prod Texas LLC | Sutton | Meckel A #75 | 6,850 | 43539147 |
| 677703 | Jan 28, 2009 | Jan 28, 2009 | Highmount Expl & Prod Texas LLC | Sutton | Hill Mayer Edwin S Jr CC #7 | 8,600 | 43539156 |
| 677699 | Jan 28, 2009 | Jan 28, 2009 | Highmount Expl & Prod Texas LLC | Sutton | Hill-Mayer, Minnie H. "C" #8 | 8,450 | 43539157 |
| 677320 | Jan 26, 2009 | Jan 26, 2009 | Highmount Expl & Prod Texas LLC | Sutton | Pfluger SWD #104 | 8,450 | 43539152 |
| 677602 | Jan 22, 2009 | Jan 22, 2009 | Highmount Expl & Prod Texas LLC | Edwards | Jenkins, F.J. "D" #1309 | 6,750 | 13732015 |
| 677476 | Jan 21, 2009 | Jan 21, 2009 | Highmount Expl & Prod Texas LLC | Edwards | Jenkins, F.j."b" #905 | 4,750 | 13732014 |
| 677363 | Jan 21, 2009 | Jan 21, 2009 | Highmount Expl & Prod Texas LLC | Sutton | Mayer 15 #23 | 8,750 | 43539154 |
| 677361 | Jan 21, 2009 | Jan 21, 2009 | Highmount Expl & Prod Texas LLC | Sutton | Mayer 15 #22 | 8,750 | 43539153 |
| 647655Amendment | Jan 20, 2009 | Jan 20, 2009 | Highmount Expl & Prod Texas LLC | Sutton | Cusenbary 58 #8 | 6,750 | 43538729 |
| 677307 | Jan 16, 2009 | Jan 16, 2009 | Highmount Expl & Prod Texas LLC | Sutton | Pfluger 86 #8 | 7,250 | 43539151 |
| 677168 | Jan 14, 2009 | Jan 14, 2009 | Highmount Expl & Prod Texas LLC | Sutton | Pfluger 110 #12 | 5,850 | 43539149 |
| 677163 | Jan 14, 2009 | Jan 14, 2009 | Highmount Expl & Prod Texas LLC | Sutton | Pfluger 110 #11 | 7,000 | 43539150 |
| 677136 | Jan 14, 2009 | Jan 14, 2009 | Highmount Expl & Prod Texas LLC | Sutton | Pfluger 103 #12 | 6,750 | 43539148 |
| 677100 | Jan 13, 2009 | Jan 13, 2009 | Highmount Expl & Prod Texas LLC | Edwards | Jenkins, F. J., "A" #804 | 4,750 | 13732013 |
| 676911 | Jan 9, 2009 | Jan 9, 2009 | Highmount Expl & Prod Texas LLC | Sutton | Nicks Gerald 8 #5 | 9,150 | 43539144 |
| 676846 | Jan 7, 2009 | Jan 7, 2009 | Highmount Expl & Prod Texas LLC | Sutton | Stewart SWD #3 | 7,250 | 43539145 |
| 676823 | Jan 7, 2009 | Jan 7, 2009 | Highmount Expl & Prod Texas LLC | Sutton | Dunbar, Ned #83 | 6,600 | 43539143 |
| 676586 | Jan 2, 2009 | Jan 2, 2009 | Highmount Expl & Prod Texas LLC | Schleicher | Atkins 119 #7 | 7,600 | 41332578 |
| 675812 | Jan 2, 2009 | Jan 2, 2009 | Highmount Expl & Prod Texas LLC | Schleicher | Mayer Edwin S Jr N #14 | 8,800 | 41332573 |
| 675748 | Jan 2, 2009 | Jan 2, 2009 | Highmount Expl & Prod Texas LLC | Sutton | Canyon Ranch 126 #20S | 7,250 | 43539139 |
| 675742 | Jan 2, 2009 | Jan 2, 2009 | Highmount Expl & Prod Texas LLC | Sutton | Canyon Ranch 126 #21S | 7,250 | 43539138 |
| 676241 | Dec 30, 2008 | Dec 30, 2008 | Highmount Expl & Prod Texas LLC | Sutton | Mayer Ranch 40 #10 | 8,850 | 43539142 |
| 676023 | Dec 30, 2008 | Dec 30, 2008 | Highmount Expl & Prod Texas LLC | Sutton | Dunbar, Ned #82 | 6,600 | 43539140 |
| 676027 | Dec 16, 2008 | Dec 16, 2008 | Highmount Expl & Prod Texas LLC | Sutton | Dunbar, Ned #86 | 6,600 | 43539141 |
| 676089 | Dec 12, 2008 | Dec 12, 2008 | Highmount Expl & Prod Texas LLC | Crockett | University 56-12 #2 | 8,995 | 10540946 |
| 676053 | Dec 11, 2008 | Dec 11, 2008 | Highmount Expl & Prod Texas LLC | Crockett | University 56-12 #1 | 8,995 | 10540945 |