| 619122 | Jun 9, 2006 | Jun 9, 2006 | XTO Energy Inc. | Goldsmith San Andres Unit #1658 | 6,000 | 13539102 |
| 619123 | Jun 6, 2006 | Jun 6, 2006 | XTO Energy Inc. | Goldsmith San Andres Unit #1660 | 6,000 | 13539101 |
| 620036 | May 26, 2006 | May 26, 2006 | XTO Energy Inc. | C.A. Goldsmith #1721 | 7,000 | 13539116 |
| 619990 | May 25, 2006 | May 25, 2006 | XTO Energy Inc. | Goldsmith, C. A. #1722 | 7,000 | 13539114 |
| 619987 | May 25, 2006 | May 25, 2006 | XTO Energy Inc. | Goldsmith, C. A. #1719 | 7,000 | 13539112 |
| 619985 | May 25, 2006 | May 25, 2006 | XTO Energy Inc. | Goldsmith, C. A. #1711 | 7,000 | 13539113 |
| 619403 | May 23, 2006 | May 23, 2006 | Occidental Permian Ltd. | Cowden, Elliott F., -B- #103 | 4,600 | 13539110 |
| 619649 | May 22, 2006 | May 22, 2006 | OXY USA WTP LP | Honeybee #1 | 10,000 | 13539111 |
| 619401 | May 22, 2006 | May 22, 2006 | Occidental Permian Ltd. | Cowden, Elliott F., -A- #198 | 4,600 | 13539109 |
| 619399 | May 22, 2006 | May 22, 2006 | Occidental Permian Ltd. | Cowden, Elliott F., -A- #197 | 4,600 | 13539108 |
| 619396 | May 22, 2006 | May 22, 2006 | Occidental Permian Ltd. | Cowden, Elliott F., -A- #196 | 4,600 | 13539107 |
| 619143 | May 19, 2006 | May 19, 2006 | Occidental Permian Ltd. | Cowden, Elliott F., -B- #102 | 4,600 | 13539106 |
| 619125 | May 19, 2006 | May 19, 2006 | Occidental Permian Ltd. | Foster, H. C. #7 | 4,600 | 13539105 |
| 619139 | May 17, 2006 | May 17, 2006 | Occidental Permian Ltd. | Foster, H. C. #8 | 4,600 | 13539103 |
| 618829 | May 15, 2006 | May 15, 2006 | OXY USA WTP LP | Klinger B #2H | 9,000 | 13538205 |
| 618824 | May 15, 2006 | May 15, 2006 | OXY USA WTP LP | Klinger A #1H | 9,000 | 13537946 |
| 618822 | May 15, 2006 | May 15, 2006 | OXY USA WTP LP | Hawkeye C #1H | 9,000 | 13537793 |
| 618807 | May 15, 2006 | May 15, 2006 | OXY USA WTP LP | Hawkeye B #1H | 9,000 | 13537816 |
| 618804 | May 15, 2006 | May 15, 2006 | OXY USA WTP LP | Hawkeye A #1H | 9,000 | 13537767 |
| 618416 | May 9, 2006 | May 9, 2006 | Occidental Permian Ltd. | Goldsmith-Landreth /Deep/ Unit #389 | 6,500 | 13539098 |
| 618416Amendment | May 9, 2006 | May 9, 2006 | Occidental Permian Ltd. | Goldsmith-Landreth /Deep/ Unit #389 | 6,500 | 13539098 |
| 618413 | May 9, 2006 | May 9, 2006 | Occidental Permian Ltd. | Goldsmith-Landreth /Deep/ Unit #388 | 6,500 | 13539097 |
| 618193 | May 9, 2006 | May 9, 2006 | Occidental Permian Ltd. | Witcher, J. E. #136 | 4,600 | 13539095 |
| 618876 | May 8, 2006 | May 8, 2006 | XTO Energy Inc. | Connell, W. E. NCT-2 #165 | 6,200 | 13536715 |
| 618408 | May 5, 2006 | May 5, 2006 | Occidental Permian Ltd. | Goldsmith-Landreth /Deep/ Unit #387 | 6,500 | 13539096 |
| 618328 | May 5, 2006 | May 5, 2006 | Turrentine Oil & Gas, Inc. | Foster, H. S. Sec 15 #23 | 4,700 | 13539092 |
| 618326 | May 5, 2006 | May 5, 2006 | Turrentine Oil & Gas, Inc. | Foster, H. S. Sec 10 #26 | 4,700 | 13539090 |
| 618219 | May 4, 2006 | May 4, 2006 | Occidental Permian Ltd. | Foster, H. C. #6 | 4,600 | 13504861 |
| 618217 | May 4, 2006 | May 4, 2006 | Occidental Permian Ltd. | Foster, H. C. #1 | 4,600 | 13504856 |
| 618442 | May 1, 2006 | May 1, 2006 | Par Development | Foster, H. S. Sec 10 #9 | 4,700 | 13539093 |
| 618441 | May 1, 2006 | May 1, 2006 | Par Development | Foster, H. S. Sec 10 #8 | 4,700 | 13539091 |
| 618440 | May 1, 2006 | May 1, 2006 | Par Development | Foster, H. S. Sec 10 #7 | 4,700 | 13539094 |
| 618285 | Apr 27, 2006 | Apr 27, 2006 | Anadarko Petroleum Corporation | TXL South Unit #1820 | 7,000 | 13539088 |
| 618284 | Apr 27, 2006 | Apr 27, 2006 | Anadarko Petroleum Corporation | TXL South Unit #2125 | 7,000 | 13539086 |
| 618283 | Apr 27, 2006 | Apr 27, 2006 | Anadarko Petroleum Corporation | TXL South Unit #2124 | 7,000 | 13539085 |
| 618282 | Apr 27, 2006 | Apr 27, 2006 | Anadarko Petroleum Corporation | TXL South Unit #2227 | 7,000 | 13539089 |
| 618281 | Apr 27, 2006 | Apr 27, 2006 | Anadarko Petroleum Corporation | TXL South Unit #1313 | 7,000 | 13539087 |
| 618280 | Apr 27, 2006 | Apr 27, 2006 | Anadarko Petroleum Corporation | TXL South Unit #1121 | 7,000 | 13539084 |
| 616351 | Apr 27, 2006 | Apr 27, 2006 | XTO Energy Inc. | Goldsmith, C.A. #1616 | 8,600 | 13539077 |
| 617582 | Apr 20, 2006 | Apr 20, 2006 | Conocophillips Company | Cowden, Clyde #206 | 5,950 | 13539083 |
| 617572 | Apr 20, 2006 | Apr 20, 2006 | Conocophillips Company | Cowden, Clyde #205 | 6,300 | 13539082 |
| 617437 | Apr 18, 2006 | Apr 18, 2006 | Conocophillips Company | North Penwell Unit #257W | 4,950 | 13539081 |
| 617435 | Apr 18, 2006 | Apr 18, 2006 | Conocophillips Company | North Penwell Unit #256 | 4,950 | 13539080 |
| 617168 | Apr 12, 2006 | Apr 12, 2006 | XTO Energy Inc. | Goldsmith San Andres Unit #1652 | 6,000 | 13539079 |
| 617168Amendment | Apr 12, 2006 | Apr 12, 2006 | XTO Energy Inc. | Goldsmith San Andres Unit #1652 | 6,000 | 13539079 |
| 615014 | Apr 12, 2006 | Apr 12, 2006 | M & J Energy, Inc. | Cummins, H. E. #7 | 4,240 | 13500304 |
| 617026 | Apr 11, 2006 | Apr 11, 2006 | OXY USA WTP LP | Foster 8-5 #5 | 9,500 | 13539078 |
| 615199 | Mar 9, 2006 | Mar 9, 2006 | Anadarko Petroleum Corporation | TXL South Unit #3745 | 7,000 | 13539074 |
| 615198 | Mar 9, 2006 | Mar 9, 2006 | Anadarko Petroleum Corporation | TXL South Unit #5720 | 7,000 | 13539073 |
| 615195 | Mar 9, 2006 | Mar 9, 2006 | Anadarko Petroleum Corporation | TXL South Unit #2711 | 7,000 | 13539076 |
| 615194 | Mar 9, 2006 | Mar 9, 2006 | Anadarko Petroleum Corporation | TXL South Unit #2710 | 7,000 | 13539075 |
| 615107 | Mar 7, 2006 | Mar 7, 2006 | Anadarko Petroleum Corporation | TXL South Unit #2228 | 7,000 | 13539072 |
| 615104 | Mar 7, 2006 | Mar 7, 2006 | Anadarko Petroleum Corporation | TXL South Unit #2226 | 7,000 | 13539071 |
| 615101 | Mar 7, 2006 | Mar 7, 2006 | Anadarko Petroleum Corporation | TXL South Unit #2126 | 7,000 | 13539070 |
| 615097 | Mar 7, 2006 | Mar 7, 2006 | Anadarko Petroleum Corporation | TXL South Unit #2123 | 7,000 | 13539069 |
| 615095 | Mar 7, 2006 | Mar 7, 2006 | Anadarko Petroleum Corporation | TXL South Unit #1120 | 7,000 | 13539068 |
| 615031 | Mar 7, 2006 | Mar 7, 2006 | Anadarko Petroleum Corporation | TXL South Unit #2511 | 7,000 | 13539067 |
| 615030 | Mar 7, 2006 | Mar 7, 2006 | Anadarko Petroleum Corporation | TXL South Unit #1238 | 7,000 | 13539066 |
| 615029 | Mar 7, 2006 | Mar 7, 2006 | Anadarko Petroleum Corporation | TXL South Unit #1314 | 7,000 | 13539065 |
| 615028 | Mar 7, 2006 | Mar 7, 2006 | Anadarko Petroleum Corporation | TXL South Unit #409 | 7,000 | 13539064 |
| 615024 | Mar 7, 2006 | Mar 7, 2006 | Anadarko Petroleum Corporation | Goldsmith Cummins Deep Unit #394 | 7,000 | 13539062 |
| 615023 | Mar 7, 2006 | Mar 7, 2006 | Anadarko Petroleum Corporation | Goldsmith Cummins Deep Unit #396 | 7,000 | 13539061 |
| 614831 | Mar 2, 2006 | Mar 2, 2006 | Latigo Petroleum Texas, LP | Foster, H. S. "B" #8 | 5,500 | 13539058 |
| 614833 | Mar 1, 2006 | Mar 1, 2006 | Latigo Petroleum Texas, LP | Foster, H. S. #24 | 5,000 | 13539059 |
| 614827 | Mar 1, 2006 | Mar 1, 2006 | Latigo Petroleum Texas, LP | Foster Gbsa Unit #106 | 5,500 | 13539057 |
| 614824 | Mar 1, 2006 | Mar 1, 2006 | Latigo Petroleum Texas, LP | Foster Gbsa Unit #912 | 5,500 | 13539056 |
| 614824Amendment | Mar 1, 2006 | Mar 1, 2006 | Latigo Petroleum Texas, LP | Foster Gbsa Unit #912 | 5,500 | 13539056 |
| 614818 | Mar 1, 2006 | Mar 1, 2006 | Latigo Petroleum Texas, LP | Foster Gbsa Unit #710 | 5,500 | 13539055 |
| 614817 | Mar 1, 2006 | Mar 1, 2006 | Latigo Petroleum Texas, LP | Foster Gbsa Unit #417 | 5,500 | 13539054 |
| 614814 | Mar 1, 2006 | Mar 1, 2006 | Latigo Petroleum Texas, LP | Foster, H. S. #21 | 5,000 | 13539053 |
| 614814Amendment | Mar 1, 2006 | Mar 1, 2006 | Latigo Petroleum Texas, LP | Foster, H. S. #21 | 5,500 | 13539053 |
| 614784 | Mar 1, 2006 | Mar 1, 2006 | OXY USA WTP LP | Klinger B #1H | 9,000 | 13537855 |
| 614778 | Mar 1, 2006 | Mar 1, 2006 | XTO Energy Inc. | Goldsmith, C. A. Etal #1680 | 8,350 | 13539060 |
| 614778Amendment | Mar 1, 2006 | Mar 1, 2006 | XTO Energy Inc. | Goldsmith, C. A. Etal #1680 | 8,350 | 13539060 |
| 614769 | Mar 1, 2006 | Mar 1, 2006 | XTO Energy Inc. | Goldsmith, C.A., Etal #1617 | 7,200 | 13539052 |
| 614717 | Feb 28, 2006 | Feb 28, 2006 | OXY USA WTP LP | Burns, Frank #1H | 9,000 | 13537977 |
| 614717Amendment | Feb 28, 2006 | Feb 28, 2006 | OXY USA WTP LP | Burns, Frank #1H | 9,000 | 13537977 |
| 614721 | Feb 27, 2006 | Feb 27, 2006 | OXY USA WTP LP | Burns, Frank #2H | 9,000 | 13538176 |
| 614549 | Feb 27, 2006 | Feb 27, 2006 | Anadarko Petroleum Corporation | Goldsmith Cummins Deep Unit #395 | 7,000 | 13539051 |
| 614548 | Feb 27, 2006 | Feb 27, 2006 | Anadarko Petroleum Corporation | Goldsmith Cummins Deep Unit #393 | 7,000 | 13539050 |
| 614523 | Feb 27, 2006 | Feb 27, 2006 | Latigo Petroleum Texas, LP | Foster, H. S. #23 | 5,500 | 13539048 |
| 614522 | Feb 27, 2006 | Feb 27, 2006 | Latigo Petroleum Texas, LP | Foster, H. S. #22 | 5,500 | 13539049 |
| 614521 | Feb 27, 2006 | Feb 27, 2006 | Latigo Petroleum Texas, LP | S. Foster Gbsa Unit #212 | 5,500 | 13539047 |
| 614520 | Feb 27, 2006 | Feb 27, 2006 | Latigo Petroleum Texas, LP | Foster Gbsa Unit #913 | 5,000 | 13539046 |
| 614520Amendment | Feb 27, 2006 | Feb 27, 2006 | Latigo Petroleum Texas, LP | Foster Gbsa Unit #913 | 5,500 | 13539046 |
| 614518 | Feb 27, 2006 | Feb 27, 2006 | Latigo Petroleum Texas, LP | Foster Gbsa Unit #911 | 5,000 | 13539045 |
| 614517 | Feb 27, 2006 | Feb 27, 2006 | Latigo Petroleum Texas, LP | Foster Gbsa Unit #510 | 5,000 | 13539044 |
| 614511 | Feb 27, 2006 | Feb 27, 2006 | Latigo Petroleum Texas, LP | Foster Gbsa Unit #509 | 5,000 | 13539043 |
| 614503 | Feb 27, 2006 | Feb 27, 2006 | Latigo Petroleum Texas, LP | Foster Gbsa Unit #419 | 5,000 | 13539042 |
| 614500 | Feb 27, 2006 | Feb 27, 2006 | Latigo Petroleum Texas, LP | Foster Gbsa Unit #418 | 5,000 | 13539041 |
| 614499 | Feb 27, 2006 | Feb 27, 2006 | Latigo Petroleum Texas, LP | Foster Gbsa Unit #224 | 5,000 | 13539040 |
| 614497 | Feb 27, 2006 | Feb 27, 2006 | Latigo Petroleum Texas, LP | Foster Gbsa Unit #223 | 5,000 | 13539039 |
| 614496 | Feb 27, 2006 | Feb 27, 2006 | Latigo Petroleum Texas, LP | Foster Gbsa Unit #222 | 5,000 | 13539038 |
| 614495 | Feb 27, 2006 | Feb 27, 2006 | Latigo Petroleum Texas, LP | Foster Gbsa Unit #105 | 5,000 | 13539037 |
| 614494 | Feb 27, 2006 | Feb 27, 2006 | Latigo Petroleum Texas, LP | Foster Gbsa Unit #104 | 5,000 | 13539036 |
| 614429 | Feb 23, 2006 | Feb 23, 2006 | OXY USA WTP LP | Radar B #2H | 9,000 | 13538151 |
| 614426 | Feb 23, 2006 | Feb 23, 2006 | OXY USA WTP LP | Klinger A #2H | 9,000 | 13538108 |
| 614420 | Feb 23, 2006 | Feb 23, 2006 | OXY USA WTP LP | Hot Lips #2H | 9,000 | 13538016 |
| 614409 | Feb 21, 2006 | Feb 21, 2006 | BP America Production Company | J. L. Johnson "B" 36 #5 | 9,400 | 13539035 |
| 613971 | Feb 16, 2006 | Feb 16, 2006 | Anadarko Petroleum Corporation | Goldsmith Cummins Deep Unit #392 | 7,000 | 13539032 |