| 696740 | May 28, 2010 | May 28, 2010 | Highmount Expl & Prod Texas LLC | Sutton | Hill Mayer Edwin S Jr B #7 | 8,300 | 43538900 |
| 696442 | May 28, 2010 | May 28, 2010 | Highmount Expl & Prod Texas LLC | Schleicher | Powell 7 #4 | 8,700 | 41332656 |
| 696558 | May 26, 2010 | May 26, 2010 | Highmount Expl & Prod Texas LLC | Edwards | Canyon Ranch 113 #14E | 6,800 | 13732082 |
| 696472 | May 25, 2010 | May 25, 2010 | Highmount Expl & Prod Texas LLC | Schleicher | Mayer Edwin S Jr N #20 | 8,900 | 41332657 |
| 696460 | May 25, 2010 | May 25, 2010 | Highmount Expl & Prod Texas LLC | Edwards | Canyon Ranch 113 #13E | 6,900 | 13732081 |
| 696155 | May 25, 2010 | May 25, 2010 | Highmount Expl & Prod Texas LLC | Sutton | Mayer Ranch 40 #7 | 8,850 | 43539295 |
| 695960 | May 25, 2010 | May 25, 2010 | Highmount Expl & Prod Texas LLC | Sutton | Johnson, JO Nell 18 #7 | 9,500 | 43539294 |
| 696351 | May 21, 2010 | May 21, 2010 | Highmount Expl & Prod Texas LLC | Sutton | Canyon Ranch #1069X | 7,000 | 43539296 |
| 696202 | May 20, 2010 | May 20, 2010 | Highmount Expl & Prod Texas LLC | Edwards | Canyon Ranch 106 #12E | 6,800 | 13732080 |
| 696109 | May 19, 2010 | May 19, 2010 | Highmount Expl & Prod Texas LLC | Sutton | Mayer Ranch QQQ #153 | 8,400 | 43533399 |
| 696112 | May 18, 2010 | May 18, 2010 | Highmount Expl & Prod Texas LLC | Sutton | Mayer Minnie H B #103 | 8,410 | 43535111 |
| 695819 | May 14, 2010 | May 14, 2010 | Highmount Expl & Prod Texas LLC | Edwards | Canyon Ranch 106 #11E | 7,150 | 13732079 |
| 695920 | May 13, 2010 | May 13, 2010 | Highmount Expl & Prod Texas LLC | Sutton | Wilson Duke #1779 | 9,300 | 43539293 |
| 695727 | May 13, 2010 | May 13, 2010 | Highmount Expl & Prod Texas LLC | Sutton | Mayer Ranch 36 #3 | 8,700 | 43538753 |
| 695727Amendment | May 13, 2010 | May 13, 2010 | Highmount Expl & Prod Texas LLC | Sutton | Mayer Ranch 36 #3 | 8,700 | 43538753 |
| 695864 | May 12, 2010 | May 12, 2010 | Highmount Expl & Prod Texas LLC | Schleicher | University 55 10 #1 | 8,800 | 41332654 |
| 695864Amendment | May 12, 2010 | May 12, 2010 | Highmount Expl & Prod Texas LLC | Schleicher | University 55 10 #1 | 8,850 | 41332654 |
| 695800 | May 12, 2010 | May 12, 2010 | Highmount Expl & Prod Texas LLC | Sutton | Wilson Duke #1618 | 9,000 | 43539292 |
| 695506 | May 5, 2010 | May 5, 2010 | Highmount Expl & Prod Texas LLC | Sutton | Mayer Ranch 41 #5 | 8,900 | 43539289 |
| 695219 | Apr 30, 2010 | Apr 30, 2010 | Highmount Expl & Prod Texas LLC | Schleicher | Marigliano #1602 | 9,450 | 41332653 |
| 695219Amendment | Apr 30, 2010 | Apr 30, 2010 | Highmount Expl & Prod Texas LLC | Schleicher | Marigliano #1602 | 9,450 | 41332653 |
| 695080 | Apr 27, 2010 | Apr 27, 2010 | Highmount Expl & Prod Texas LLC | Sutton | Epps, H.C. #38 #15 | 6,500 | 43539288 |
| 695032 | Apr 27, 2010 | Apr 27, 2010 | Highmount Expl & Prod Texas LLC | Sutton | Epps, H.C. #38 #14 | 6,200 | 43539287 |
| 694925 | Apr 26, 2010 | Apr 26, 2010 | Highmount Expl & Prod Texas LLC | Sutton | Mayer Ranch 41 #8 | 8,900 | 43539286 |
| 694822 | Apr 26, 2010 | Apr 26, 2010 | Highmount Expl & Prod Texas LLC | Sutton | Epps, H.C. #39 #15 | 7,100 | 43539284 |
| 694826 | Apr 23, 2010 | Apr 23, 2010 | Highmount Expl & Prod Texas LLC | Sutton | Ward RC #3 | 4,000 | 43534198 |
| 694816 | Apr 23, 2010 | Apr 23, 2010 | Highmount Expl & Prod Texas LLC | Sutton | Epps, H.C. #38 #13 | 7,000 | 43539285 |
| 694749 | Apr 23, 2010 | Apr 23, 2010 | Highmount Expl & Prod Texas LLC | Sutton | Diebitsch 70 #19 | 8,300 | 43539282 |
| 694770 | Apr 21, 2010 | Apr 21, 2010 | Highmount Expl & Prod Texas LLC | Sutton | Cusenbary W R 39 #8 | 6,200 | 43539283 |
| 694752 | Apr 21, 2010 | Apr 21, 2010 | Highmount Expl & Prod Texas LLC | Schleicher | Mayer Edwin S Jr E #33 | 8,550 | 41332651 |
| 694292 | Apr 21, 2010 | Apr 21, 2010 | Highmount Expl & Prod Texas LLC | Sutton | Ward, J.W. 118 #14 | 7,125 | 43536750 |
| 694732 | Apr 20, 2010 | Apr 20, 2010 | Highmount Expl & Prod Texas LLC | Schleicher | Mayer Edwin S Jr P #16 | 8,975 | 41332650 |
| 694684 | Apr 20, 2010 | Apr 20, 2010 | Highmount Expl & Prod Texas LLC | Schleicher | Loe #6102 | 8,950 | 41332649 |
| 694524 | Apr 19, 2010 | Apr 19, 2010 | Highmount Expl & Prod Texas LLC | Schleicher | Marigliano #2402 | 8,850 | 41332648 |
| 694524Amendment | Apr 19, 2010 | Apr 19, 2010 | Highmount Expl & Prod Texas LLC | Schleicher | Marigliano #2402 | 8,850 | 41332648 |
| 694494 | Apr 16, 2010 | Apr 16, 2010 | Highmount Expl & Prod Texas LLC | Schleicher | Mayer Edwin S Jr 27 #3 | 8,800 | 41332646 |
| 694273 | Apr 16, 2010 | Apr 16, 2010 | Highmount Expl & Prod Texas LLC | Sutton | Diebitsch 70 #18 | 8,350 | 43539279 |
| 694385 | Apr 15, 2010 | Apr 15, 2010 | Highmount Expl & Prod Texas LLC | Edwards | Mayfield Ranch "C" #8802 | 4,200 | 13732078 |
| 694362 | Apr 15, 2010 | Apr 15, 2010 | Highmount Expl & Prod Texas LLC | Schleicher | Rousselot Doris Mayer A #18 | 8,350 | 41332645 |
| 694341 | Apr 14, 2010 | Apr 14, 2010 | Highmount Expl & Prod Texas LLC | Schleicher | Mayer Edwin S Jr P #12 | 8,950 | 41332644 |
| 694249 | Apr 14, 2010 | Apr 14, 2010 | Highmount Expl & Prod Texas LLC | Sutton | Shannon 52 #24 | 8,350 | 43539278 |
| 694098 | Apr 9, 2010 | Apr 9, 2010 | Highmount Expl & Prod Texas LLC | Schleicher | Jeffers AR #11 | 8,750 | 41332643 |
| 694020 | Apr 9, 2010 | Apr 9, 2010 | Highmount Expl & Prod Texas LLC | Sutton | Shannon 52 #25 | 8,400 | 43539277 |
| 694009 | Apr 9, 2010 | Apr 9, 2010 | Highmount Expl & Prod Texas LLC | Sutton | Mayer, Edwin S. Jr. "B" 38 #9 | 8,950 | 43539276 |
| 694011 | Apr 8, 2010 | Apr 8, 2010 | Highmount Expl & Prod Texas LLC | Schleicher | Marigliano #2501 | 8,950 | 41332642 |
| 694011Amendment | Apr 8, 2010 | Apr 8, 2010 | Highmount Expl & Prod Texas LLC | Schleicher | Marigliano #2501 | 8,950 | 41332642 |
| 693957 | Apr 8, 2010 | Apr 8, 2010 | Highmount Expl & Prod Texas LLC | Sutton | Randee Fawcett Trust #22 | 9,000 | 43539275 |
| 693814 | Apr 2, 2010 | Apr 2, 2010 | Highmount Expl & Prod Texas LLC | Schleicher | Powell 13 #1 | 8,850 | 41332641 |
| 693814Amendment | Apr 2, 2010 | Apr 2, 2010 | Highmount Expl & Prod Texas LLC | Schleicher | Powell 13 #1 | 8,850 | 41332641 |
| 693726 | Mar 31, 2010 | Mar 31, 2010 | Highmount Expl & Prod Texas LLC | Schleicher | Hill Rousselot E #3 | 8,975 | 41332640 |
| 693719 | Mar 31, 2010 | Mar 31, 2010 | Highmount Expl & Prod Texas LLC | Schleicher | Hill Rousselot B #4 | 8,975 | 41332639 |
| 693678 | Mar 30, 2010 | Mar 30, 2010 | Highmount Expl & Prod Texas LLC | Schleicher | Hill Rousselot E #2 | 8,750 | 41332638 |
| 693415 | Mar 25, 2010 | Mar 25, 2010 | Highmount Expl & Prod Texas LLC | Sutton | Cusenbary 58 #12 | 6,200 | 43539272 |
| 693406 | Mar 25, 2010 | Mar 25, 2010 | Highmount Expl & Prod Texas LLC | Sutton | Mayer Edwin S Jr #1 | 8,300 | 43530305 |
| 693370 | Mar 25, 2010 | Mar 25, 2010 | Highmount Expl & Prod Texas LLC | Sutton | Mayer, Edwin S. Jr. "B" 38 #7 | 8,950 | 43539270 |
| 693360 | Mar 24, 2010 | Mar 24, 2010 | Highmount Expl & Prod Texas LLC | Sutton | Nicks Gerald 5 #13 | 8,900 | 43539271 |
| 693344 | Mar 24, 2010 | Mar 24, 2010 | Highmount Expl & Prod Texas LLC | Sutton | Mayer Edwin S Jr #1303 | 8,500 | 43537618 |
| 693254 | Mar 23, 2010 | Mar 23, 2010 | Highmount Expl & Prod Texas LLC | Edwards | Canyon Ranch 106 #10E | 7,150 | 13732076 |
| 693250 | Mar 23, 2010 | Mar 23, 2010 | Highmount Expl & Prod Texas LLC | Edwards | Canyon Ranch 112 #17E | 7,150 | 13732075 |
| 693013 | Mar 19, 2010 | Mar 19, 2010 | Highmount Expl & Prod Texas LLC | Edwards | Phillips 3 #3 | 4,600 | 13732074 |
| 693053 | Mar 18, 2010 | Mar 18, 2010 | Highmount Expl & Prod Texas LLC | Edwards | Phillips 7 #4 | 5,400 | 13732072 |
| 693020 | Mar 18, 2010 | Mar 18, 2010 | Highmount Expl & Prod Texas LLC | Edwards | Fish #203 | 4,400 | 13732073 |
| 693006 | Mar 18, 2010 | Mar 18, 2010 | Highmount Expl & Prod Texas LLC | Schleicher | Mayer Edwin S Jr N #19 | 8,800 | 41332636 |
| 692576 | Mar 10, 2010 | Mar 10, 2010 | Highmount Expl & Prod Texas LLC | Schleicher | Hill-Mayer YY #2 | 8,900 | 41332635 |
| 692563 | Mar 10, 2010 | Mar 10, 2010 | Highmount Expl & Prod Texas LLC | Sutton | Cusenbary 58 #13 | 6,200 | 43539269 |
| 692556 | Mar 10, 2010 | Mar 10, 2010 | Highmount Expl & Prod Texas LLC | Edwards | Canyon Ranch 107 #21E | 7,100 | 13732071 |
| 692149 | Mar 4, 2010 | Mar 4, 2010 | Highmount Expl & Prod Texas LLC | Schleicher | Hill-Rousselot "B" #3 | 8,700 | 41332634 |
| 692140 | Mar 4, 2010 | Mar 4, 2010 | Highmount Expl & Prod Texas LLC | Schleicher | Mayer Edwin S Jr E #32 | 8,500 | 41332633 |
| 692131 | Mar 4, 2010 | Mar 4, 2010 | Highmount Expl & Prod Texas LLC | Sutton | Cusenbary, W. R. 39 #6 | 6,200 | 43539268 |
| 692118 | Mar 4, 2010 | Mar 4, 2010 | Highmount Expl & Prod Texas LLC | Sutton | Cusenbary W.R. B #3 | 6,000 | 43539267 |
| 692108 | Mar 4, 2010 | Mar 4, 2010 | Highmount Expl & Prod Texas LLC | Edwards | Canyon Ranch 110 #6E | 7,450 | 13732069 |
| 691715 | Mar 2, 2010 | Mar 2, 2010 | Highmount Expl & Prod Texas LLC | Schleicher | University 54 24 #6 | 8,650 | 41332631 |
| 691899 | Mar 1, 2010 | Mar 1, 2010 | Highmount Expl & Prod Texas LLC | Sutton | Reinhardt 6 #12 | 3,000 | 43536756 |
| 691775 | Feb 24, 2010 | Feb 24, 2010 | Highmount Expl & Prod Texas LLC | Edwards | Hough 12 #3 | 5,400 | 13732066 |
| 691772 | Feb 24, 2010 | Feb 24, 2010 | Highmount Expl & Prod Texas LLC | Edwards | Mitchell #109 | 4,400 | 13732065 |
| 690110 | Feb 24, 2010 | Feb 24, 2010 | Highmount Expl & Prod Texas LLC | Edwards | Mayfield SB #29 | 4,250 | 13732050 |
| 690110Amendment | Feb 24, 2010 | Feb 24, 2010 | Highmount Expl & Prod Texas LLC | Edwards | Mayfield SB #29 | 5,013 | 13732050 |
| 691673 | Feb 22, 2010 | Feb 22, 2010 | Highmount Expl & Prod Texas LLC | Schleicher | Hill-Mayer III #3 | 8,500 | 41332630 |
| 691536 | Feb 22, 2010 | Feb 22, 2010 | Highmount Expl & Prod Texas LLC | Schleicher | Jeffers AR #10 | 8,750 | 41332627 |
| 690774 | Feb 16, 2010 | Feb 16, 2010 | Highmount Expl & Prod Texas LLC | Edwards | Mayfield, S. B. #35 | 4,200 | 13732058 |
| 691222 | Feb 12, 2010 | Feb 12, 2010 | Highmount Expl & Prod Texas LLC | Edwards | Canyon Ranch 110 #5E | 6,750 | 13732062 |
| 691052 | Feb 10, 2010 | Feb 10, 2010 | Highmount Expl & Prod Texas LLC | Sutton | Canyon Ranch 207 #27S | 6,850 | 43539266 |
| 690866 | Feb 9, 2010 | Feb 9, 2010 | Highmount Expl & Prod Texas LLC | Sutton | Jones Ranch #1869 | 8,400 | 43539265 |
| 689386 | Feb 9, 2010 | Feb 9, 2010 | Highmount Expl & Prod Texas LLC | Sutton | Shurley 36 #12 | 7,200 | 43539254 |
| 690829 | Feb 8, 2010 | Feb 8, 2010 | Highmount Expl & Prod Texas LLC | Edwards | Mayfield, S.B. #25 | 4,200 | 13732061 |
| 690800 | Feb 8, 2010 | Feb 8, 2010 | Highmount Expl & Prod Texas LLC | Edwards | Canyon Ranch 110 #4E | 6,750 | 13732060 |
| 690796 | Feb 5, 2010 | Feb 5, 2010 | Highmount Expl & Prod Texas LLC | Edwards | Canyon Ranch 112 #16E | 6,750 | 13732059 |
| 690761 | Feb 5, 2010 | Feb 5, 2010 | Highmount Expl & Prod Texas LLC | Edwards | Canyon Ranch 112 #15E | 6,750 | 13732057 |
| 690736 | Feb 5, 2010 | Feb 5, 2010 | Highmount Expl & Prod Texas LLC | Edwards | Canyon Ranch 112 #14E | 6,950 | 13732056 |
| 690665 | Feb 4, 2010 | Feb 4, 2010 | Highmount Expl & Prod Texas LLC | Sutton | Bloodworth 139 #13 | 3,300 | 43539264 |
| 690639 | Feb 4, 2010 | Feb 4, 2010 | Highmount Expl & Prod Texas LLC | Schleicher | Powell 23 #12 | 8,700 | 41332625 |
| 690318 | Feb 4, 2010 | Feb 4, 2010 | Highmount Expl & Prod Texas LLC | Edwards | Graham #302 | 5,000 | 13732053 |
| 690567 | Feb 3, 2010 | Feb 3, 2010 | Highmount Expl & Prod Texas LLC | Edwards | Mitchell #108 | 5,300 | 13732055 |
| 689277 | Feb 2, 2010 | Feb 2, 2010 | Highmount Expl & Prod Texas LLC | Edwards | Canyon Ranch 112 #10E | 7,000 | 13732043 |
| 690405 | Jan 29, 2010 | Jan 29, 2010 | Highmount Expl & Prod Texas LLC | Edwards | Mitchell #110 | 5,300 | 13732054 |
| 690314 | Jan 27, 2010 | Jan 27, 2010 | Highmount Expl & Prod Texas LLC | Edwards | Mitchell #107 | 4,600 | 13732052 |
| 690170 | Jan 26, 2010 | Jan 26, 2010 | Highmount Expl & Prod Texas LLC | Edwards | Mitchell #111 | 4,600 | 13732049 |
| 690103 | Jan 26, 2010 | Jan 26, 2010 | Highmount Expl & Prod Texas LLC | Edwards | Mayfield SB #28 | 4,250 | 13732048 |
| 690103Amendment | Jan 26, 2010 | Jan 26, 2010 | Highmount Expl & Prod Texas LLC | Edwards | Mayfield SB #28 | 4,250 | 13732048 |
| 690097 | Jan 26, 2010 | Jan 26, 2010 | Highmount Expl & Prod Texas LLC | Edwards | Mayfield, S. B. #34 | 3,950 | 13732051 |