| 668957 | Sep 4, 2008 | Sep 4, 2008 | Highmount Expl & Prod Texas LLC | Schleicher | Nolen Partners A #1282 | 7,450 | 41330653 |
| 668900 | Sep 4, 2008 | Sep 4, 2008 | Highmount Expl & Prod Texas LLC | Sutton | Meckel A #74 | 7,600 | 43539073 |
| 667127 | Sep 4, 2008 | Sep 4, 2008 | Highmount Expl & Prod Texas LLC | Schleicher | Jeffers 28 B #5 | 8,900 | 41332538 |
| 661203Amendment | Sep 4, 2008 | Sep 4, 2008 | Highmount Expl & Prod Texas LLC | Sutton | Ward 127 #23 | 8,445 | 43538991 |
| 668907 | Sep 3, 2008 | Sep 3, 2008 | Highmount Expl & Prod Texas LLC | Sutton | Mayer Ranch 41 #4 | 8,975 | 43539074 |
| 668860 | Sep 3, 2008 | Sep 3, 2008 | Highmount Expl & Prod Texas LLC | Sutton | Mayer Ranch 41 #3 | 8,900 | 43539072 |
| 668136 | Aug 21, 2008 | Aug 21, 2008 | Highmount Expl & Prod Texas LLC | Sutton | Vanderstucken, Joe M. #16 | 8,975 | 43539071 |
| 668136Amendment | Aug 21, 2008 | Aug 21, 2008 | Highmount Expl & Prod Texas LLC | Sutton | Vanderstucken, Joe M. #16 | 8,975 | 43539071 |
| 668134 | Aug 21, 2008 | Aug 21, 2008 | Highmount Expl & Prod Texas LLC | Sutton | Vanderstucken, Joe M. #19 | 8,975 | 43539070 |
| 666347 | Aug 14, 2008 | Aug 14, 2008 | Highmount Expl & Prod Texas LLC | Sutton | Jones Ranch #1868 | 8,450 | 43539056 |
| 667261 | Aug 11, 2008 | Aug 11, 2008 | Highmount Expl & Prod Texas LLC | Schleicher | Rousselot, Doris Mayer "A" #16 | 8,450 | 41332541 |
| 667162 | Aug 7, 2008 | Aug 7, 2008 | Highmount Expl & Prod Texas LLC | Sutton | Jones Ranch 156 #7 | 7,800 | 43539067 |
| 667128 | Aug 7, 2008 | Aug 7, 2008 | Highmount Expl & Prod Texas LLC | Crockett | University 56 21 #1 | 8,995 | 10540808 |
| 666952 | Aug 7, 2008 | Aug 7, 2008 | Highmount Expl & Prod Texas LLC | Sutton | Richardson 139 #13 | 8,750 | 43539066 |
| 665917 | Aug 6, 2008 | Aug 6, 2008 | Highmount Expl & Prod Texas LLC | Schleicher | Powell 8 #5 | 8,700 | 41332535 |
| 665917Amendment | Aug 6, 2008 | Aug 6, 2008 | Highmount Expl & Prod Texas LLC | Schleicher | Powell 8 #5 | 8,700 | 41332535 |
| 664592 | Aug 5, 2008 | Aug 5, 2008 | Highmount Expl & Prod Texas LLC | Sutton | Steen #101 | 6,100 | 43539034 |
| 666716 | Aug 4, 2008 | Aug 4, 2008 | Highmount Expl & Prod Texas LLC | Sutton | Mayer, Edwin S. Jr. "B" 38 #3 | 8,675 | 43539063 |
| 666618 | Aug 4, 2008 | Aug 4, 2008 | Highmount Expl & Prod Texas LLC | Sutton | Brown,jack W. 2 #1 | 9,825 | 43539062 |
| 666718 | Aug 2, 2008 | Aug 2, 2008 | Highmount Expl & Prod Texas LLC | Sutton | Stewart #308 | 5,950 | 43539065 |
| 666717 | Aug 2, 2008 | Aug 2, 2008 | Highmount Expl & Prod Texas LLC | Sutton | Mayer, Edwin S. Jr. "B" 38 #2 | 8,675 | 43539064 |
| 666496 | Aug 1, 2008 | Aug 1, 2008 | Highmount Expl & Prod Texas LLC | Sutton | Mayer, Edwin S. Jr. B39 #4 | 8,700 | 43539060 |
| 666485 | Aug 1, 2008 | Aug 1, 2008 | Highmount Expl & Prod Texas LLC | Sutton | Mayer, Edwin S. Jr. B 39 #3 | 8,700 | 43539059 |
| 666475 | Aug 1, 2008 | Aug 1, 2008 | Highmount Expl & Prod Texas LLC | Sutton | Mayer,edwin S. Jr. B39 #2 | 8,700 | 43539058 |
| 666521 | Jul 31, 2008 | Jul 31, 2008 | Highmount Expl & Prod Texas LLC | Sutton | Mittel, Ben #25 | 7,400 | 43539061 |
| 666521Amendment | Jul 31, 2008 | Jul 31, 2008 | Highmount Expl & Prod Texas LLC | Sutton | Mittel, Ben #25 | 7,400 | 43539061 |
| 666461 | Jul 30, 2008 | Jul 30, 2008 | Highmount Expl & Prod Texas LLC | Sutton | Mayer,edwin S. JR.B39 #1 | 8,700 | 43539057 |
| 665906 | Jul 30, 2008 | Jul 30, 2008 | Highmount Expl & Prod Texas LLC | Sutton | Stewart #207 | 5,750 | 43539052 |
| 666243 | Jul 28, 2008 | Jul 28, 2008 | Highmount Expl & Prod Texas LLC | Sutton | Simmons 3 #10 | 8,450 | 43539055 |
| 666008 | Jul 24, 2008 | Jul 24, 2008 | Highmount Expl & Prod Texas LLC | Sutton | Diebitsch 70 #16 | 8,450 | 43539050 |
| 665918 | Jul 24, 2008 | Jul 24, 2008 | Highmount Expl & Prod Texas LLC | Sutton | Evans 120 #2 | 7,550 | 43539049 |
| 665932 | Jul 23, 2008 | Jul 23, 2008 | Highmount Expl & Prod Texas LLC | Schleicher | Mayer, Edwin S Jr P #13 | 8,975 | 41332534 |
| 665828 | Jul 23, 2008 | Jul 23, 2008 | Highmount Expl & Prod Texas LLC | Schleicher | Atkins 119 #3 | 7,550 | 41332532 |
| 666048 | Jul 22, 2008 | Jul 22, 2008 | Highmount Expl & Prod Texas LLC | Sutton | Lancaster 185 #3 | 8,450 | 43539051 |
| 665909 | Jul 22, 2008 | Jul 22, 2008 | Highmount Expl & Prod Texas LLC | Sutton | Simmons 72 #16 | 8,450 | 43539048 |
| 665909Amendment | Jul 22, 2008 | Jul 22, 2008 | Highmount Expl & Prod Texas LLC | Sutton | Simmons 72 #16 | 8,450 | 43539048 |
| 665834 | Jul 22, 2008 | Jul 22, 2008 | Highmount Expl & Prod Texas LLC | Schleicher | Mayer Edwin S Jr 27 #1 | 8,750 | 41332533 |
| 665686 | Jul 22, 2008 | Jul 22, 2008 | Highmount Expl & Prod Texas LLC | Sutton | Shurley 123 #32 | 6,900 | 43539045 |
| 665684 | Jul 22, 2008 | Jul 22, 2008 | Highmount Expl & Prod Texas LLC | Sutton | Shurley 123 #31 | 6,950 | 43539044 |
| 665681 | Jul 22, 2008 | Jul 22, 2008 | Highmount Expl & Prod Texas LLC | Sutton | Shurley 123 #30 | 6,900 | 43539043 |
| 665679 | Jul 22, 2008 | Jul 22, 2008 | Highmount Expl & Prod Texas LLC | Sutton | Shurley 123 #29 | 6,900 | 43539042 |
| 665677 | Jul 22, 2008 | Jul 22, 2008 | Highmount Expl & Prod Texas LLC | Sutton | Shurley 123 #28 | 6,900 | 43539041 |
| 665677Amendment | Jul 22, 2008 | Jul 22, 2008 | Highmount Expl & Prod Texas LLC | Sutton | Shurley 123 #28 | 6,900 | 43539041 |
| 663815 | Jul 22, 2008 | Jul 22, 2008 | Highmount Expl & Prod Texas LLC | Sutton | Canyon Ranch #310S | 5,550 | 43539020 |
| 663812 | Jul 22, 2008 | Jul 22, 2008 | Highmount Expl & Prod Texas LLC | Sutton | Canyon Ranch #311S | 5,550 | 43539016 |
| 663812Amendment | Jul 22, 2008 | Jul 22, 2008 | Highmount Expl & Prod Texas LLC | Sutton | Canyon Ranch #311S | 6,500 | 43539016 |
| 665756 | Jul 21, 2008 | Jul 21, 2008 | Highmount Expl & Prod Texas LLC | Sutton | Stewart #208 | 5,850 | 43539047 |
| 665673 | Jul 21, 2008 | Jul 21, 2008 | Highmount Expl & Prod Texas LLC | Edwards | Canyon Ranch #5003E | 7,400 | 13731751 |
| 665664 | Jul 21, 2008 | Jul 21, 2008 | Highmount Expl & Prod Texas LLC | Sutton | Shurley 123 #27 | 6,900 | 43539040 |
| 665664Amendment | Jul 21, 2008 | Jul 21, 2008 | Highmount Expl & Prod Texas LLC | Sutton | Shurley 123 #27 | 6,900 | 43539040 |
| 665697 | Jul 18, 2008 | Jul 18, 2008 | Highmount Expl & Prod Texas LLC | Sutton | Stewart #206 | 5,750 | 43539046 |
| 665433 | Jul 17, 2008 | Jul 17, 2008 | Highmount Expl & Prod Texas LLC | Sutton | Stewart #307 | 5,900 | 43539039 |
| 665337 | Jul 17, 2008 | Jul 17, 2008 | Highmount Expl & Prod Texas LLC | Sutton | Stewart #311 | 5,550 | 43539038 |
| 665336 | Jul 17, 2008 | Jul 17, 2008 | Highmount Expl & Prod Texas LLC | Sutton | Stewart #106 | 5,350 | 43539037 |
| 665332 | Jul 16, 2008 | Jul 16, 2008 | Highmount Expl & Prod Texas LLC | Sutton | Stewart #310 | 5,550 | 43539036 |
| 665332Amendment | Jul 16, 2008 | Jul 16, 2008 | Highmount Expl & Prod Texas LLC | Sutton | Stewart #310 | 7,500 | 43539036 |
| 665331 | Jul 16, 2008 | Jul 16, 2008 | Highmount Expl & Prod Texas LLC | Sutton | Stewart #105 | 5,350 | 43539035 |
| 664712 | Jul 7, 2008 | Jul 7, 2008 | Highmount Expl & Prod Texas LLC | Sutton | Mayer Ranch 35 #13 | 8,975 | 43539026 |
| 664711 | Jul 7, 2008 | Jul 7, 2008 | Highmount Expl & Prod Texas LLC | Sutton | Mayer Ranch 35 #12 | 8,950 | 43539025 |
| 664710 | Jul 7, 2008 | Jul 7, 2008 | Highmount Expl & Prod Texas LLC | Sutton | Mayer Ranch 35 #11 | 8,850 | 43539027 |
| 664697 | Jul 3, 2008 | Jul 3, 2008 | Highmount Expl & Prod Texas LLC | Sutton | Mayer Ranch 40 #11 | 8,900 | 43539024 |
| 664365 | Jul 1, 2008 | Jul 1, 2008 | Highmount Expl & Prod Texas LLC | Sutton | Pfluger 85 #10 | 5,600 | 43534936 |
| 664221 | Jun 28, 2008 | Jun 28, 2008 | Highmount Expl & Prod Texas LLC | Crockett | University 56 18 #6 | 8,995 | 10540747 |
| 664218 | Jun 28, 2008 | Jun 28, 2008 | Highmount Expl & Prod Texas LLC | Crockett | University 56 19 #3 | 8,950 | 10540745 |
| 664158 | Jun 27, 2008 | Jun 27, 2008 | Highmount Expl & Prod Texas LLC | Schleicher | Nikolauk 6 #2 | 8,650 | 41332530 |
| 664157 | Jun 27, 2008 | Jun 27, 2008 | Highmount Expl & Prod Texas LLC | Schleicher | Powell 3 #1 | 8,550 | 41332529 |
| 664151 | Jun 27, 2008 | Jun 27, 2008 | Highmount Expl & Prod Texas LLC | Schleicher | University 54-24 #1 | 8,550 | 41332528 |
| 664087 | Jun 26, 2008 | Jun 26, 2008 | Highmount Expl & Prod Texas LLC | Sutton | Mayer Ranch 41 #1 | 8,575 | 43539018 |
| 663333 | Jun 25, 2008 | Jun 25, 2008 | Highmount Expl & Prod Texas LLC | Ward | Greer-McGinley Gas Unit #2 | 17,500 | 47532115 |
| 662205 | Jun 25, 2008 | Jun 25, 2008 | Highmount Expl & Prod Texas LLC | Sutton | Mayer, Edwin S. Jr. "D" #102 | 8,775 | 43539017 |
| 658578 | Jun 23, 2008 | Jun 23, 2008 | Highmount Expl & Prod Texas LLC | Crockett | Beasley Ranch A #7303 | 9,350 | 10540624 |
| 658569 | Jun 23, 2008 | Jun 23, 2008 | Highmount Expl & Prod Texas LLC | Crockett | McMullen Ranch D 111 #4 | 9,375 | 10540622 |
| 658568 | Jun 23, 2008 | Jun 23, 2008 | Highmount Expl & Prod Texas LLC | Crockett | McMullen Ranch D 111 #3 | 9,250 | 10540623 |
| 663541 | Jun 21, 2008 | Jun 21, 2008 | Highmount Expl & Prod Texas LLC | Sutton | Deberry A #99 | 6,825 | 43539013 |
| 663016 | Jun 20, 2008 | Jun 20, 2008 | Highmount Expl & Prod Texas LLC | Sutton | Hill-Mayer, Edwin S. Jr. "BB" #6 | 8,450 | 43539009 |
| 663331 | Jun 18, 2008 | Jun 18, 2008 | Highmount Expl & Prod Texas LLC | Sutton | Sawyer-Jones #1608 | 9,150 | 43539012 |
| 663018 | Jun 16, 2008 | Jun 16, 2008 | Highmount Expl & Prod Texas LLC | Sutton | Canyon Ranch #2161S | 7,250 | 43539011 |
| 663019 | Jun 13, 2008 | Jun 13, 2008 | Highmount Expl & Prod Texas LLC | Edwards | Canyon Ranch #9014E | 7,350 | 13731954 |
| 663017 | Jun 13, 2008 | Jun 13, 2008 | Highmount Expl & Prod Texas LLC | Sutton | Canyon Ranch #2162S | 7,250 | 43539010 |
| 662899 | Jun 13, 2008 | Jun 13, 2008 | Highmount Expl & Prod Texas LLC | Sutton | Canyon Ranch 207 #24S | 7,100 | 43539007 |
| 662874 | Jun 13, 2008 | Jun 13, 2008 | Highmount Expl & Prod Texas LLC | Sutton | Canyon Ranch 207 #26S | 7,100 | 43539008 |
| 662620 | Jun 13, 2008 | Jun 13, 2008 | Highmount Expl & Prod Texas LLC | Sutton | Richardson 6 #10 | 8,750 | 43539004 |
| 662855 | Jun 12, 2008 | Jun 12, 2008 | Highmount Expl & Prod Texas LLC | Sutton | Simmons 72 #15 | 8,550 | 43539006 |
| 662631 | Jun 11, 2008 | Jun 11, 2008 | Highmount Expl & Prod Texas LLC | Sutton | Richardson 4 #14 | 8,750 | 43539005 |
| 662608 | Jun 11, 2008 | Jun 11, 2008 | Highmount Expl & Prod Texas LLC | Sutton | Simmons 71 #14 | 8,475 | 43539003 |
| 662596 | Jun 11, 2008 | Jun 11, 2008 | Highmount Expl & Prod Texas LLC | Sutton | Simmons 3 #8 | 8,450 | 43539002 |
| 662478 | Jun 10, 2008 | Jun 10, 2008 | Highmount Expl & Prod Texas LLC | Sutton | Mayer Ranch G #703 | 8,550 | 43539001 |
| 662225 | Jun 10, 2008 | Jun 10, 2008 | Highmount Expl & Prod Texas LLC | Sutton | Richardson 138 #18 | 8,750 | 43538999 |
| 662213 | Jun 10, 2008 | Jun 10, 2008 | Highmount Expl & Prod Texas LLC | Sutton | Reinhardt 6 #16 | 8,575 | 43538998 |
| 662258 | Jun 6, 2008 | Jun 6, 2008 | Highmount Expl & Prod Texas LLC | Sutton | Lancaster 185 #2 | 8,450 | 43539000 |
| 662204 | Jun 6, 2008 | Jun 6, 2008 | Highmount Expl & Prod Texas LLC | Sutton | Mayfield 41 #13H | 7,300 | 43538997 |
| 662203 | Jun 6, 2008 | Jun 6, 2008 | Highmount Expl & Prod Texas LLC | Sutton | Weitz #401 | 10,150 | 43538996 |
| 660081 | Jun 3, 2008 | Jun 3, 2008 | Highmount Expl & Prod Texas LLC | Sutton | Valliant #16 | 8,975 | 43538976 |
| 660081Amendment | Jun 3, 2008 | Jun 3, 2008 | Highmount Expl & Prod Texas LLC | Sutton | Valliant #16 | 8,975 | 43538976 |
| 660081Amendment | Jun 3, 2008 | Jun 3, 2008 | Highmount Expl & Prod Texas LLC | Sutton | Valliant #16 | 8,975 | 43538976 |
| 661853 | Jun 2, 2008 | Jun 2, 2008 | Highmount Expl & Prod Texas LLC | Sutton | Hill-Mayer, Edwin S. Jr. "Y" #3 | 8,450 | 43538995 |
| 661210 | May 23, 2008 | May 23, 2008 | Highmount Expl & Prod Texas LLC | Sutton | Ward 127 #24 | 8,200 | 43538992 |
| 661203 | May 23, 2008 | May 23, 2008 | Highmount Expl & Prod Texas LLC | Sutton | Ward 127 #23 | 8,200 | 43538991 |
| 661203Amendment | May 23, 2008 | May 23, 2008 | Highmount Expl & Prod Texas LLC | Sutton | Ward 127 #23 | 8,200 | 43538991 |
| 661200 | May 23, 2008 | May 23, 2008 | Highmount Expl & Prod Texas LLC | Sutton | Ward 127 #22 | 8,150 | 43538993 |