| 660948 | May 21, 2008 | May 21, 2008 | Highmount Expl & Prod Texas LLC | Sutton | Simmons 73 #1243538988 | 8,450 |
| 660963 | May 20, 2008 | May 20, 2008 | Highmount Expl & Prod Texas LLC | Sutton | Mayer 38 #943538990 | 8,425 |
| 660951 | May 20, 2008 | May 20, 2008 | Highmount Expl & Prod Texas LLC | Sutton | Stewart #20543538989 | 5,750 |
| 660855 | May 20, 2008 | May 20, 2008 | Highmount Expl & Prod Texas LLC | Sutton | Canyon Ranch 207 #11S43538523 | 6,950 |
| 660850 | May 20, 2008 | May 20, 2008 | Highmount Expl & Prod Texas LLC | Sutton | Simmons 72 #1243538763 | 8,250 |
| 660830 | May 20, 2008 | May 20, 2008 | Highmount Expl & Prod Texas LLC | Sutton | Hill-Mayer, Minnie H. "B" #643538985 | 8,200 |
| 660827 | May 20, 2008 | May 20, 2008 | Highmount Expl & Prod Texas LLC | Sutton | Simmons 3 #943538984 | 8,250 |
| 660827Amendment | May 20, 2008 | May 20, 2008 | Highmount Expl & Prod Texas LLC | Sutton | Simmons 3 #943538984 | 8,250 |
| 658883 | May 19, 2008 | May 19, 2008 | Highmount Expl & Prod Texas LLC | Sutton | Genini #312743538966 | 8,600 |
| 658882 | May 19, 2008 | May 19, 2008 | Highmount Expl & Prod Texas LLC | Sutton | Genini #312843538964 | 8,400 |
| 660641 | May 16, 2008 | May 16, 2008 | Highmount Expl & Prod Texas LLC | Sutton | Ward 114 #2643538983 | 8,050 |
| 660641Amendment | May 16, 2008 | May 16, 2008 | Highmount Expl & Prod Texas LLC | Sutton | Ward 114 #2643538983 | 8,300 |
| 660640 | May 16, 2008 | May 16, 2008 | Highmount Expl & Prod Texas LLC | Sutton | Ward 114 #2343538982 | 8,150 |
| 660636 | May 16, 2008 | May 16, 2008 | Highmount Expl & Prod Texas LLC | Sutton | Ward 114 #2243538981 | 8,050 |
| 660634 | May 16, 2008 | May 16, 2008 | Highmount Expl & Prod Texas LLC | Sutton | Ward 114 #2143538980 | 7,275 |
| 660634Amendment | May 16, 2008 | May 16, 2008 | Highmount Expl & Prod Texas LLC | Sutton | Ward 114 #2143538980 | 8,300 |
| 658825 | May 16, 2008 | May 16, 2008 | Highmount Expl & Prod Texas LLC | Sutton | Genini #313243538961 | 8,600 |
| 658818 | May 15, 2008 | May 15, 2008 | Highmount Expl & Prod Texas LLC | Sutton | Genini #313143538958 | 8,400 |
| 658816 | May 15, 2008 | May 15, 2008 | Highmount Expl & Prod Texas LLC | Sutton | Genini #312943538956 | 8,400 |
| 658811 | May 15, 2008 | May 15, 2008 | Highmount Expl & Prod Texas LLC | Sutton | Genini #313043538957 | 8,500 |
| 660360 | May 8, 2008 | May 8, 2008 | Highmount Expl & Prod Texas LLC | Sutton | Cusenbary 58 #943538979 | 6,150 |
| 660237 | May 6, 2008 | May 6, 2008 | Highmount Expl & Prod Texas LLC | Schleicher | Ryan #220441332520 | 8,950 |
| 660185 | May 6, 2008 | May 6, 2008 | Highmount Expl & Prod Texas LLC | Sutton | Mayer, Edwin S Jr. "B" 38 #643538977 | 8,700 |
| 660220 | May 5, 2008 | May 5, 2008 | Highmount Expl & Prod Texas LLC | Schleicher | Powell 23 #1141332519 | 8,850 |
| 660082 | May 2, 2008 | May 2, 2008 | Highmount Expl & Prod Texas LLC | Sutton | Whitehead 9 #543538975 | 8,975 |
| 659667 | Apr 30, 2008 | Apr 30, 2008 | Highmount Expl & Prod Texas LLC | Sutton | Canyon Ranch #117S43538971 | 5,650 |
| 659684 | Apr 29, 2008 | Apr 29, 2008 | Highmount Expl & Prod Texas LLC | Sutton | Mayer 37 #1643538972 | 8,250 |
| 659680 | Apr 29, 2008 | Apr 29, 2008 | Highmount Expl & Prod Texas LLC | Sutton | Mayer 37 #1543538970 | 8,275 |
| 659588 | Apr 26, 2008 | Apr 26, 2008 | Highmount Expl & Prod Texas LLC | Schleicher | Powell 4 #141332518 | 8,600 |
| 659529 | Apr 26, 2008 | Apr 26, 2008 | Highmount Expl & Prod Texas LLC | Crockett | University 56 22 #1410540646 | 8,995 |
| 659471 | Apr 26, 2008 | Apr 26, 2008 | Highmount Expl & Prod Texas LLC | Sutton | Jerry Johnson 3.9 #1X43538969 | 9,875 |
| 658996 | Apr 22, 2008 | Apr 22, 2008 | Highmount Expl & Prod Texas LLC | Sutton | Canyon Ranch #312S43538963 | 5,650 |
| 658983 | Apr 22, 2008 | Apr 22, 2008 | Highmount Expl & Prod Texas LLC | Schleicher | Atkins 119 #141332517 | 7,400 |
| 658783 | Apr 22, 2008 | Apr 22, 2008 | Highmount Expl & Prod Texas LLC | Sutton | Friend #205143538965 | 10,450 |
| 657526 | Apr 22, 2008 | Apr 22, 2008 | Highmount Expl & Prod Texas LLC | Sutton | Canyon Ranch #838X43538934 | 6,150 |
| 658803 | Apr 21, 2008 | Apr 21, 2008 | Highmount Expl & Prod Texas LLC | Sutton | Espy 40 #1043538959 | 6,300 |
| 658842 | Apr 18, 2008 | Apr 18, 2008 | Highmount Expl & Prod Texas LLC | Sutton | Stewart #785843538962 | 5,550 |
| 658823 | Apr 18, 2008 | Apr 18, 2008 | Highmount Expl & Prod Texas LLC | Sutton | Stewart #10443538960 | 5,750 |
| 658823Amendment | Apr 18, 2008 | Apr 18, 2008 | Highmount Expl & Prod Texas LLC | Sutton | Stewart #10443538960 | 6,500 |
| 658809 | Apr 18, 2008 | Apr 18, 2008 | Highmount Expl & Prod Texas LLC | Sutton | Stewart #20443538955 | 5,750 |
| 658809Amendment | Apr 18, 2008 | Apr 18, 2008 | Highmount Expl & Prod Texas LLC | Sutton | Stewart #20443538955 | 6,750 |
| 658663 | Apr 17, 2008 | Apr 17, 2008 | Highmount Expl & Prod Texas LLC | Sutton | Hill-Mayer, Edwin S. Jr. "Z" #8X43538953 | 8,250 |
| 658784 | Apr 16, 2008 | Apr 16, 2008 | Highmount Expl & Prod Texas LLC | Sutton | Stewart #30943538954 | 5,750 |
| 658183 | Apr 16, 2008 | Apr 16, 2008 | Highmount Expl & Prod Texas LLC | Sutton | Mayer, Edwin S Jr #100443538946 | 8,425 |
| 658483 | Apr 14, 2008 | Apr 14, 2008 | Highmount Expl & Prod Texas LLC | Sutton | Mittel, Ben #2343538951 | 7,350 |
| 658548 | Apr 12, 2008 | Apr 12, 2008 | Highmount Expl & Prod Texas LLC | Schleicher | Nixon 177 #1141332516 | 7,850 |
| 658384 | Apr 12, 2008 | Apr 12, 2008 | Highmount Expl & Prod Texas LLC | Sutton | Espy 41 #1243538952 | 6,175 |
| 658380 | Apr 11, 2008 | Apr 11, 2008 | Highmount Expl & Prod Texas LLC | Sutton | Espy 41 #1143538949 | 6,175 |
| 658339 | Apr 11, 2008 | Apr 11, 2008 | Highmount Expl & Prod Texas LLC | Sutton | Epps, H. C. 39 #1243538950 | 7,350 |
| 658316 | Apr 10, 2008 | Apr 10, 2008 | Highmount Expl & Prod Texas LLC | Sutton | Holman #26743538948 | 7,800 |
| 658304 | Apr 10, 2008 | Apr 10, 2008 | Highmount Expl & Prod Texas LLC | Sutton | Holman #25243538947 | 7,950 |
| 658304Amendment | Apr 10, 2008 | Apr 10, 2008 | Highmount Expl & Prod Texas LLC | Sutton | Holman #25243538947 | 7,950 |
| 657981 | Apr 8, 2008 | Apr 8, 2008 | Highmount Expl & Prod Texas LLC | Sutton | Canyon Ranch #9318S43538945 | 5,850 |
| 657981Amendment | Apr 8, 2008 | Apr 8, 2008 | Highmount Expl & Prod Texas LLC | Sutton | Canyon Ranch #9318S43538945 | 5,850 |
| 657959 | Apr 8, 2008 | Apr 8, 2008 | Highmount Expl & Prod Texas LLC | Sutton | Canyon Ranch #9319S43538941 | 5,850 |
| 657958 | Apr 8, 2008 | Apr 8, 2008 | Highmount Expl & Prod Texas LLC | Sutton | Canyon Ranch #8220S43538944 | 5,750 |
| 657920 | Apr 8, 2008 | Apr 8, 2008 | Highmount Expl & Prod Texas LLC | Sutton | Canyon Ranch #8219S43538940 | 5,750 |
| 657628 | Apr 8, 2008 | Apr 8, 2008 | Highmount Expl & Prod Texas LLC | Edwards | Canyon Ranch #1079EX13731951 | 7,250 |
| 657962 | Apr 7, 2008 | Apr 7, 2008 | Highmount Expl & Prod Texas LLC | Sutton | Canyon Ranch #9320S43538943 | 5,850 |
| 657960 | Apr 7, 2008 | Apr 7, 2008 | Highmount Expl & Prod Texas LLC | Sutton | Canyon Ranch #9321S43538942 | 5,850 |
| 657857 | Apr 3, 2008 | Apr 3, 2008 | Highmount Expl & Prod Texas LLC | Schleicher | Meador 57 #541332515 | 8,300 |
| 657740 | Apr 1, 2008 | Apr 1, 2008 | Highmount Expl & Prod Texas LLC | Sutton | Stewart #30543538939 | 5,300 |
| 657604 | Apr 1, 2008 | Apr 1, 2008 | Highmount Expl & Prod Texas LLC | Sutton | Reed 101 #3243538937 | 6,575 |
| 657528 | Mar 28, 2008 | Mar 28, 2008 | Highmount Expl & Prod Texas LLC | Sutton | Canyon Ranch 207 #23S43538936 | 7,050 |
| 657524 | Mar 28, 2008 | Mar 28, 2008 | Highmount Expl & Prod Texas LLC | Sutton | Canyon Ranch 207 #25S43538933 | 7,050 |
| 657410 | Mar 28, 2008 | Mar 28, 2008 | Highmount Expl & Prod Texas LLC | Sutton | Reed 116 #3143538929 | 6,775 |
| 657408 | Mar 28, 2008 | Mar 28, 2008 | Highmount Expl & Prod Texas LLC | Sutton | Reed 116 #3043538928 | 6,800 |
| 657405 | Mar 28, 2008 | Mar 28, 2008 | Highmount Expl & Prod Texas LLC | Sutton | Reed 116 #2943538927 | 6,950 |
| 657349 | Mar 28, 2008 | Mar 28, 2008 | Highmount Expl & Prod Texas LLC | Sutton | Kelly 115 #3243538926 | 6,675 |
| 657347 | Mar 28, 2008 | Mar 28, 2008 | Highmount Expl & Prod Texas LLC | Sutton | Kelly 115 #2943538925 | 6,750 |
| 657346 | Mar 28, 2008 | Mar 28, 2008 | Highmount Expl & Prod Texas LLC | Sutton | Kelly 115 #2843538924 | 6,675 |
| 657343 | Mar 28, 2008 | Mar 28, 2008 | Highmount Expl & Prod Texas LLC | Sutton | Kelly 115 #2743538923 | 6,725 |
| 654855 | Mar 28, 2008 | Mar 28, 2008 | Highmount Expl & Prod Texas LLC | Sutton | Shurley RR IF #843538905 | 8,300 |
| 657527 | Mar 27, 2008 | Mar 27, 2008 | Highmount Expl & Prod Texas LLC | Sutton | Canyon Ranch 207 #22S43538935 | 7,050 |
| 657523 | Mar 27, 2008 | Mar 27, 2008 | Highmount Expl & Prod Texas LLC | Edwards | Canyon Ranch #2096E13731950 | 7,150 |
| 657278 | Mar 25, 2008 | Mar 25, 2008 | Highmount Expl & Prod Texas LLC | Schleicher | Meador 189 #441332514 | 8,150 |
| 657278Amendment | Mar 25, 2008 | Mar 25, 2008 | Highmount Expl & Prod Texas LLC | Schleicher | Meador 189 #441332514 | 8,150 |
| 657243 | Mar 25, 2008 | Mar 25, 2008 | Highmount Expl & Prod Texas LLC | Schleicher | Meador 178 #941332513 | 8,150 |
| 656725 | Mar 25, 2008 | Mar 25, 2008 | Highmount Expl & Prod Texas LLC | Sutton | Steen #9943538914 | 6,100 |
| 656982 | Mar 24, 2008 | Mar 24, 2008 | Highmount Expl & Prod Texas LLC | Schleicher | University 57 23 #441332511 | 8,550 |
| 657030 | Mar 21, 2008 | Mar 21, 2008 | Highmount Expl & Prod Texas LLC | Sutton | Nicks,gerald 5 #1143538921 | 8,975 |
| 655376 | Mar 21, 2008 | Mar 21, 2008 | Highmount Expl & Prod Texas LLC | Sutton | Kelly 35 #3A43538895 | 7,300 |
| 655376Amendment | Mar 21, 2008 | Mar 21, 2008 | Highmount Expl & Prod Texas LLC | Sutton | Kelly 35 #3A43538895 | 7,300 |
| 655373 | Mar 21, 2008 | Mar 21, 2008 | Highmount Expl & Prod Texas LLC | Sutton | Kelly 35 #1343538896 | 7,200 |
| 655353 | Mar 21, 2008 | Mar 21, 2008 | Highmount Expl & Prod Texas LLC | Sutton | Kelly 35 #9X43538894 | 7,300 |
| 655350 | Mar 21, 2008 | Mar 21, 2008 | Highmount Expl & Prod Texas LLC | Sutton | Kelly 35 #843538893 | 7,300 |
| 654945 | Mar 20, 2008 | Mar 20, 2008 | Highmount Expl & Prod Texas LLC | Sutton | Shurley RR 4B #443538883 | 8,600 |
| 654942 | Mar 20, 2008 | Mar 20, 2008 | Highmount Expl & Prod Texas LLC | Sutton | Shurley RR 4B #543538882 | 7,800 |
| 654913 | Mar 20, 2008 | Mar 20, 2008 | Highmount Expl & Prod Texas LLC | Sutton | Genini 31 #2543538879 | 8,550 |
| 654911 | Mar 20, 2008 | Mar 20, 2008 | Highmount Expl & Prod Texas LLC | Sutton | Genini 31 #2443538881 | 8,525 |
| 654910 | Mar 20, 2008 | Mar 20, 2008 | Highmount Expl & Prod Texas LLC | Sutton | Genini #312243538880 | 8,575 |
| 654908 | Mar 20, 2008 | Mar 20, 2008 | Highmount Expl & Prod Texas LLC | Sutton | Genini 31 #2143538878 | 8,550 |
| 654466 | Mar 19, 2008 | Mar 19, 2008 | Highmount Expl & Prod Texas LLC | Sutton | Davis D #1843538869 | 6,325 |
| 656877 | Mar 18, 2008 | Mar 18, 2008 | Highmount Expl & Prod Texas LLC | Crockett | University 56 22 #1310540598 | 8,995 |
| 656838 | Mar 18, 2008 | Mar 18, 2008 | Highmount Expl & Prod Texas LLC | Schleicher | Powell 8 #441332509 | 8,650 |
| 656806 | Mar 18, 2008 | Mar 18, 2008 | Highmount Expl & Prod Texas LLC | Schleicher | Jeffers 28 "B" #441332510 | 8,850 |
| 656810 | Mar 17, 2008 | Mar 17, 2008 | Highmount Expl & Prod Texas LLC | Sutton | Hudspeth 2 #243538919 | 8,950 |
| 654873 | Mar 17, 2008 | Mar 17, 2008 | Highmount Expl & Prod Texas LLC | Sutton | Genini 39 #2543538875 | 8,975 |
| 654873Amendment | Mar 17, 2008 | Mar 17, 2008 | Highmount Expl & Prod Texas LLC | Sutton | Genini 39 #2543538875 | 8,975 |
| 654872 | Mar 17, 2008 | Mar 17, 2008 | Highmount Expl & Prod Texas LLC | Sutton | Genini 39 #2243538874 | 8,995 |