| 662203 | Jun 6, 2008 | Jun 6, 2008 | Highmount Expl & Prod Texas LLC | Weitz #401 | 10,150 | 43538996 |
| 660081 | Jun 3, 2008 | Jun 3, 2008 | Highmount Expl & Prod Texas LLC | Valliant #16 | 8,975 | 43538976 |
| 660081Amendment | Jun 3, 2008 | Jun 3, 2008 | Highmount Expl & Prod Texas LLC | Valliant #16 | 8,975 | 43538976 |
| 660081Amendment | Jun 3, 2008 | Jun 3, 2008 | Highmount Expl & Prod Texas LLC | Valliant #16 | 8,975 | 43538976 |
| 661853 | Jun 2, 2008 | Jun 2, 2008 | Highmount Expl & Prod Texas LLC | Hill-Mayer, Edwin S. Jr. "Y" #3 | 8,450 | 43538995 |
| 661778 | May 30, 2008 | May 30, 2008 | Lone Star Oil & Gas | Sarah Buss Hicks #1 | 4,800 | 43538994 |
| 661210 | May 23, 2008 | May 23, 2008 | Highmount Expl & Prod Texas LLC | Ward 127 #24 | 8,200 | 43538992 |
| 661203 | May 23, 2008 | May 23, 2008 | Highmount Expl & Prod Texas LLC | Ward 127 #23 | 8,200 | 43538991 |
| 661203Amendment | May 23, 2008 | May 23, 2008 | Highmount Expl & Prod Texas LLC | Ward 127 #23 | 8,200 | 43538991 |
| 661200 | May 23, 2008 | May 23, 2008 | Highmount Expl & Prod Texas LLC | Ward 127 #22 | 8,150 | 43538993 |
| 660948 | May 21, 2008 | May 21, 2008 | Highmount Expl & Prod Texas LLC | Simmons 73 #12 | 8,450 | 43538988 |
| 660963 | May 20, 2008 | May 20, 2008 | Highmount Expl & Prod Texas LLC | Mayer 38 #9 | 8,425 | 43538990 |
| 660951 | May 20, 2008 | May 20, 2008 | Highmount Expl & Prod Texas LLC | Stewart #205 | 5,750 | 43538989 |
| 660855 | May 20, 2008 | May 20, 2008 | Highmount Expl & Prod Texas LLC | Canyon Ranch 207 #11S | 6,950 | 43538523 |
| 660850 | May 20, 2008 | May 20, 2008 | Highmount Expl & Prod Texas LLC | Simmons 72 #12 | 8,250 | 43538763 |
| 660830 | May 20, 2008 | May 20, 2008 | Highmount Expl & Prod Texas LLC | Hill-Mayer, Minnie H. "B" #6 | 8,200 | 43538985 |
| 660827 | May 20, 2008 | May 20, 2008 | Highmount Expl & Prod Texas LLC | Simmons 3 #9 | 8,250 | 43538984 |
| 660827Amendment | May 20, 2008 | May 20, 2008 | Highmount Expl & Prod Texas LLC | Simmons 3 #9 | 8,250 | 43538984 |
| 660913 | May 19, 2008 | May 19, 2008 | KCS Resources, Inc. | Sawyer 113 #20 | 7,000 | 43538987 |
| 659292 | May 19, 2008 | May 19, 2008 | XOG Operating LLC | Patterson, Floyd #3 | 5,000 | 43538986 |
| 658883 | May 19, 2008 | May 19, 2008 | Highmount Expl & Prod Texas LLC | Genini #3127 | 8,600 | 43538966 |
| 658882 | May 19, 2008 | May 19, 2008 | Highmount Expl & Prod Texas LLC | Genini #3128 | 8,400 | 43538964 |
| 660641 | May 16, 2008 | May 16, 2008 | Highmount Expl & Prod Texas LLC | Ward 114 #26 | 8,050 | 43538983 |
| 660641Amendment | May 16, 2008 | May 16, 2008 | Highmount Expl & Prod Texas LLC | Ward 114 #26 | 8,300 | 43538983 |
| 660640 | May 16, 2008 | May 16, 2008 | Highmount Expl & Prod Texas LLC | Ward 114 #23 | 8,150 | 43538982 |
| 660636 | May 16, 2008 | May 16, 2008 | Highmount Expl & Prod Texas LLC | Ward 114 #22 | 8,050 | 43538981 |
| 660634 | May 16, 2008 | May 16, 2008 | Highmount Expl & Prod Texas LLC | Ward 114 #21 | 7,275 | 43538980 |
| 660634Amendment | May 16, 2008 | May 16, 2008 | Highmount Expl & Prod Texas LLC | Ward 114 #21 | 8,300 | 43538980 |
| 658825 | May 16, 2008 | May 16, 2008 | Highmount Expl & Prod Texas LLC | Genini #3132 | 8,600 | 43538961 |
| 658818 | May 15, 2008 | May 15, 2008 | Highmount Expl & Prod Texas LLC | Genini #3131 | 8,400 | 43538958 |
| 658816 | May 15, 2008 | May 15, 2008 | Highmount Expl & Prod Texas LLC | Genini #3129 | 8,400 | 43538956 |
| 658811 | May 15, 2008 | May 15, 2008 | Highmount Expl & Prod Texas LLC | Genini #3130 | 8,500 | 43538957 |
| 660360 | May 8, 2008 | May 8, 2008 | Highmount Expl & Prod Texas LLC | Cusenbary 58 #9 | 6,150 | 43538979 |
| 660277 | May 6, 2008 | May 6, 2008 | KCS Resources, Inc. | Sawyer 113 #19 | 7,000 | 43538978 |
| 660185 | May 6, 2008 | May 6, 2008 | Highmount Expl & Prod Texas LLC | Mayer, Edwin S Jr. "B" 38 #6 | 8,700 | 43538977 |
| 660082 | May 2, 2008 | May 2, 2008 | Highmount Expl & Prod Texas LLC | Whitehead 9 #5 | 8,975 | 43538975 |
| 659863 | Apr 30, 2008 | Apr 30, 2008 | KCS Resources, Inc. | Genini #3714 | 7,000 | 43538974 |
| 659858 | Apr 30, 2008 | Apr 30, 2008 | KCS Resources, Inc. | Jones 119 #18 | 7,000 | 43538973 |
| 659667 | Apr 30, 2008 | Apr 30, 2008 | Highmount Expl & Prod Texas LLC | Canyon Ranch #117S | 5,650 | 43538971 |
| 659684 | Apr 29, 2008 | Apr 29, 2008 | Highmount Expl & Prod Texas LLC | Mayer 37 #16 | 8,250 | 43538972 |
| 659680 | Apr 29, 2008 | Apr 29, 2008 | Highmount Expl & Prod Texas LLC | Mayer 37 #15 | 8,275 | 43538970 |
| 659471 | Apr 26, 2008 | Apr 26, 2008 | Highmount Expl & Prod Texas LLC | Jerry Johnson 3.9 #1X | 9,875 | 43538969 |
| 659411 | Apr 26, 2008 | Apr 26, 2008 | KCS Resources, Inc. | Sawyer 113 #18 | 7,000 | 43538968 |
| 659409 | Apr 26, 2008 | Apr 26, 2008 | KCS Resources, Inc. | Sawyer 113 #16 | 7,000 | 43538967 |
| 658996 | Apr 22, 2008 | Apr 22, 2008 | Highmount Expl & Prod Texas LLC | Canyon Ranch #312S | 5,650 | 43538963 |
| 658783 | Apr 22, 2008 | Apr 22, 2008 | Highmount Expl & Prod Texas LLC | Friend #2051 | 10,450 | 43538965 |
| 657526 | Apr 22, 2008 | Apr 22, 2008 | Highmount Expl & Prod Texas LLC | Canyon Ranch #838X | 6,150 | 43538934 |
| 658803 | Apr 21, 2008 | Apr 21, 2008 | Highmount Expl & Prod Texas LLC | Espy 40 #10 | 6,300 | 43538959 |
| 658842 | Apr 18, 2008 | Apr 18, 2008 | Highmount Expl & Prod Texas LLC | Stewart #7858 | 5,550 | 43538962 |
| 658823 | Apr 18, 2008 | Apr 18, 2008 | Highmount Expl & Prod Texas LLC | Stewart #104 | 5,750 | 43538960 |
| 658823Amendment | Apr 18, 2008 | Apr 18, 2008 | Highmount Expl & Prod Texas LLC | Stewart #104 | 6,500 | 43538960 |
| 658809 | Apr 18, 2008 | Apr 18, 2008 | Highmount Expl & Prod Texas LLC | Stewart #204 | 5,750 | 43538955 |
| 658809Amendment | Apr 18, 2008 | Apr 18, 2008 | Highmount Expl & Prod Texas LLC | Stewart #204 | 6,750 | 43538955 |
| 658663 | Apr 17, 2008 | Apr 17, 2008 | Highmount Expl & Prod Texas LLC | Hill-Mayer, Edwin S. Jr. "Z" #8X | 8,250 | 43538953 |
| 658784 | Apr 16, 2008 | Apr 16, 2008 | Highmount Expl & Prod Texas LLC | Stewart #309 | 5,750 | 43538954 |
| 658183 | Apr 16, 2008 | Apr 16, 2008 | Highmount Expl & Prod Texas LLC | Mayer, Edwin S Jr #1004 | 8,425 | 43538946 |
| 656233 | Apr 16, 2008 | Apr 16, 2008 | O'Ryan Oil and Gas | Wilson #6 | 5,000 | 43538154 |
| 658483 | Apr 14, 2008 | Apr 14, 2008 | Highmount Expl & Prod Texas LLC | Mittel, Ben #23 | 7,350 | 43538951 |
| 658384 | Apr 12, 2008 | Apr 12, 2008 | Highmount Expl & Prod Texas LLC | Espy 41 #12 | 6,175 | 43538952 |
| 658380 | Apr 11, 2008 | Apr 11, 2008 | Highmount Expl & Prod Texas LLC | Espy 41 #11 | 6,175 | 43538949 |
| 658339 | Apr 11, 2008 | Apr 11, 2008 | Highmount Expl & Prod Texas LLC | Epps, H. C. 39 #12 | 7,350 | 43538950 |
| 658316 | Apr 10, 2008 | Apr 10, 2008 | Highmount Expl & Prod Texas LLC | Holman #267 | 7,800 | 43538948 |
| 658304 | Apr 10, 2008 | Apr 10, 2008 | Highmount Expl & Prod Texas LLC | Holman #252 | 7,950 | 43538947 |
| 658304Amendment | Apr 10, 2008 | Apr 10, 2008 | Highmount Expl & Prod Texas LLC | Holman #252 | 7,950 | 43538947 |
| 657981 | Apr 8, 2008 | Apr 8, 2008 | Highmount Expl & Prod Texas LLC | Canyon Ranch #9318S | 5,850 | 43538945 |
| 657981Amendment | Apr 8, 2008 | Apr 8, 2008 | Highmount Expl & Prod Texas LLC | Canyon Ranch #9318S | 5,850 | 43538945 |
| 657959 | Apr 8, 2008 | Apr 8, 2008 | Highmount Expl & Prod Texas LLC | Canyon Ranch #9319S | 5,850 | 43538941 |
| 657958 | Apr 8, 2008 | Apr 8, 2008 | Highmount Expl & Prod Texas LLC | Canyon Ranch #8220S | 5,750 | 43538944 |
| 657920 | Apr 8, 2008 | Apr 8, 2008 | Highmount Expl & Prod Texas LLC | Canyon Ranch #8219S | 5,750 | 43538940 |
| 657962 | Apr 7, 2008 | Apr 7, 2008 | Highmount Expl & Prod Texas LLC | Canyon Ranch #9320S | 5,850 | 43538943 |
| 657960 | Apr 7, 2008 | Apr 7, 2008 | Highmount Expl & Prod Texas LLC | Canyon Ranch #9321S | 5,850 | 43538942 |
| 657740 | Apr 1, 2008 | Apr 1, 2008 | Highmount Expl & Prod Texas LLC | Stewart #305 | 5,300 | 43538939 |
| 657604 | Apr 1, 2008 | Apr 1, 2008 | Highmount Expl & Prod Texas LLC | Reed 101 #32 | 6,575 | 43538937 |
| 657618 | Mar 28, 2008 | Mar 28, 2008 | KCS Resources, Inc. | Carta 103 #17 | 7,000 | 43538938 |
| 657528 | Mar 28, 2008 | Mar 28, 2008 | Highmount Expl & Prod Texas LLC | Canyon Ranch 207 #23S | 7,050 | 43538936 |
| 657524 | Mar 28, 2008 | Mar 28, 2008 | Highmount Expl & Prod Texas LLC | Canyon Ranch 207 #25S | 7,050 | 43538933 |
| 657410 | Mar 28, 2008 | Mar 28, 2008 | Highmount Expl & Prod Texas LLC | Reed 116 #31 | 6,775 | 43538929 |
| 657408 | Mar 28, 2008 | Mar 28, 2008 | Highmount Expl & Prod Texas LLC | Reed 116 #30 | 6,800 | 43538928 |
| 657405 | Mar 28, 2008 | Mar 28, 2008 | Highmount Expl & Prod Texas LLC | Reed 116 #29 | 6,950 | 43538927 |
| 657349 | Mar 28, 2008 | Mar 28, 2008 | Highmount Expl & Prod Texas LLC | Kelly 115 #32 | 6,675 | 43538926 |
| 657347 | Mar 28, 2008 | Mar 28, 2008 | Highmount Expl & Prod Texas LLC | Kelly 115 #29 | 6,750 | 43538925 |
| 657346 | Mar 28, 2008 | Mar 28, 2008 | Highmount Expl & Prod Texas LLC | Kelly 115 #28 | 6,675 | 43538924 |
| 657343 | Mar 28, 2008 | Mar 28, 2008 | Highmount Expl & Prod Texas LLC | Kelly 115 #27 | 6,725 | 43538923 |
| 654855 | Mar 28, 2008 | Mar 28, 2008 | Highmount Expl & Prod Texas LLC | Shurley RR IF #8 | 8,300 | 43538905 |
| 657527 | Mar 27, 2008 | Mar 27, 2008 | Highmount Expl & Prod Texas LLC | Canyon Ranch 207 #22S | 7,050 | 43538935 |
| 657519 | Mar 27, 2008 | Mar 27, 2008 | KCS Resources, Inc. | Espy, H. T. -B- #4 | 6,000 | 43538932 |
| 657504 | Mar 27, 2008 | Mar 27, 2008 | KCS Resources, Inc. | Jones 97 #13 | 7,000 | 43538931 |
| 657504Amendment | Mar 27, 2008 | Mar 27, 2008 | KCS Resources, Inc. | Jones 97 #13 | 7,000 | 43538931 |
| 657503 | Mar 27, 2008 | Mar 27, 2008 | KCS Resources, Inc. | Jones 97 #9 | 7,000 | 43538930 |
| 657503Amendment | Mar 27, 2008 | Mar 27, 2008 | KCS Resources, Inc. | Jones 97 #9 | 7,000 | 43538930 |
| 656725 | Mar 25, 2008 | Mar 25, 2008 | Highmount Expl & Prod Texas LLC | Steen #99 | 6,100 | 43538914 |
| 657030 | Mar 21, 2008 | Mar 21, 2008 | Highmount Expl & Prod Texas LLC | Nicks,gerald 5 #11 | 8,975 | 43538921 |
| 657009 | Mar 21, 2008 | Mar 21, 2008 | KCS Resources, Inc. | Espy, H. T. #10 | 6,000 | 43538922 |
| 655376 | Mar 21, 2008 | Mar 21, 2008 | Highmount Expl & Prod Texas LLC | Kelly 35 #3A | 7,300 | 43538895 |
| 655376Amendment | Mar 21, 2008 | Mar 21, 2008 | Highmount Expl & Prod Texas LLC | Kelly 35 #3A | 7,300 | 43538895 |
| 655373 | Mar 21, 2008 | Mar 21, 2008 | Highmount Expl & Prod Texas LLC | Kelly 35 #13 | 7,200 | 43538896 |
| 655353 | Mar 21, 2008 | Mar 21, 2008 | Highmount Expl & Prod Texas LLC | Kelly 35 #9X | 7,300 | 43538894 |
| 655350 | Mar 21, 2008 | Mar 21, 2008 | Highmount Expl & Prod Texas LLC | Kelly 35 #8 | 7,300 | 43538893 |
| 657006 | Mar 20, 2008 | Mar 20, 2008 | KCS Resources, Inc. | Espy, H. T. #9 | 6,000 | 43538920 |
| 654945 | Mar 20, 2008 | Mar 20, 2008 | Highmount Expl & Prod Texas LLC | Shurley RR 4B #4 | 8,600 | 43538883 |