| 503711 | Jan 5, 2001 | Jan 5, 2001 | Occidental Permian Ltd. | Witcher, J. E. C #6 | 4,600 | 13537954 |
| 503711Amendment | Jan 5, 2001 | Jan 5, 2001 | Occidental Permian Ltd. | Witcher, J. E. C #6 | 4,600 | 13537954 |
| 503664 | Jan 4, 2001 | Jan 4, 2001 | Pure Resources, L.P. | Holt, Sr. #1Q | 4,100 | 13537953 |
| 503663 | Jan 4, 2001 | Jan 4, 2001 | Pure Resources, L.P. | Holt, Jr. #1Q | 4,100 | 13537952 |
| 503465 | Jan 2, 2001 | Jan 2, 2001 | Chevron U. S. A. Inc. | Goldsmith, C. A. et Al #3001D | 8,100 | 13537948 |
| 503531 | Dec 29, 2000 | Dec 29, 2000 | National Energy Group, Inc. | Goldsmith Adobe Unit #1725 | 6,100 | 13537951 |
| 503530 | Dec 29, 2000 | Dec 29, 2000 | National Energy Group, Inc. | Goldsmith Adobe Unit #1723 | 6,100 | 13537949 |
| 503529 | Dec 29, 2000 | Dec 29, 2000 | National Energy Group, Inc. | Goldsmith Adobe Unit #1724 | 6,100 | 13537950 |
| 503310 | Dec 20, 2000 | Dec 20, 2000 | Lario Oil & Gas Company | Wilson 45 #1 | 4,200 | 13507226 |
| 503309 | Dec 20, 2000 | Dec 20, 2000 | Lario Oil & Gas Company | Wilson 1 #1 | 4,230 | 13507228 |
| 503265 | Dec 19, 2000 | Dec 19, 2000 | Fidelity Land Company | Vee-Bar Ranch #1` | 6,200 | 13537947 |
| 502902 | Dec 18, 2000 | Dec 18, 2000 | Maynard Oil Co. | Phillips-TXL -23- #1 | 6,000 | 13535377 |
| 502871 | Dec 18, 2000 | Dec 18, 2000 | Chevron U. S. A. Inc. | Goldsmith San Andres Unit #1428 | 4,350 | 13534401 |
| 502901 | Dec 14, 2000 | Dec 14, 2000 | Maynard Oil Co. | Phillips-Slator -26- #4 | 6,000 | 13536377 |
| 502951 | Dec 12, 2000 | Dec 12, 2000 | OXY USA Inc. | Klinger A #1 | 8,700 | 13537946 |
| 502848 | Dec 11, 2000 | Dec 11, 2000 | Pure Resources, L.P. | Holt, O. B. -C- #23 | 5,500 | 13537945 |
| 502847 | Dec 11, 2000 | Dec 11, 2000 | Pure Resources, L.P. | Holt, O. B. -C- #24 | 5,500 | 13537944 |
| 501693 | Dec 8, 2000 | Dec 8, 2000 | Southwest Royalties, Inc. | Gist Unit #164 | 4,600 | 13537917 |
| 501692 | Dec 8, 2000 | Dec 8, 2000 | Southwest Royalties, Inc. | Gist Unit #165 | 4,600 | 13537916 |
| 501690 | Dec 8, 2000 | Dec 8, 2000 | Southwest Royalties, Inc. | Gist Unit #166 | 4,600 | 13537914 |
| 501689 | Dec 8, 2000 | Dec 8, 2000 | Southwest Royalties, Inc. | Gist Unit #168 | 4,600 | 13537913 |
| 501689Amendment | Dec 8, 2000 | Dec 8, 2000 | Southwest Royalties, Inc. | Pinnacle #4 | 5,600 | 13537913 |
| 501688 | Dec 8, 2000 | Dec 8, 2000 | Southwest Royalties, Inc. | Gist Unit #169 | 4,600 | 13537912 |
| 501687 | Dec 8, 2000 | Dec 8, 2000 | Southwest Royalties, Inc. | Gist Unit #171 | 4,600 | 13537911 |
| 501686 | Dec 8, 2000 | Dec 8, 2000 | Southwest Royalties, Inc. | Gist Unit #170 | 4,600 | 13537910 |
| 502659 | Dec 5, 2000 | Dec 5, 2000 | National Energy Group, Inc. | Goldsmith Adobe Unit #1721 | 6,100 | 13537943 |
| 502658 | Dec 5, 2000 | Dec 5, 2000 | National Energy Group, Inc. | Goldsmith Adobe Unit #1722 | 6,100 | 13537942 |
| 502525 | Dec 1, 2000 | Dec 1, 2000 | Pure Resources, L.P. | North Foster Unit #174 | 4,500 | 13537939 |
| 502524 | Dec 1, 2000 | Dec 1, 2000 | Pure Resources, L.P. | North Foster Unit #178 | 4,500 | 13537940 |
| 502522 | Dec 1, 2000 | Dec 1, 2000 | Pure Resources, L.P. | North Foster Unit #177 | 4,500 | 13537941 |
| 502225 | Nov 22, 2000 | Nov 22, 2000 | Coastal Management Corporation | Cummins "D" #2 | 8,200 | 13500372 |
| 502246 | Nov 21, 2000 | Nov 21, 2000 | Pure Resources, L.P. | Holt, O. B., Jr. "A" #1Q | 4,100 | 13537937 |
| 501986 | Nov 20, 2000 | Nov 20, 2000 | M & J Energy, Inc. | Cummins, H. E. #6 | 4,404 | 13530771 |
| 501977 | Nov 20, 2000 | Nov 20, 2000 | Anadarko Petroleum Corp. | TXL North Unit #872 | 7,000 | 13537932 |
| 501972 | Nov 20, 2000 | Nov 20, 2000 | Anadarko Petroleum Corp. | TXL North Unit #873 | 7,000 | 13537931 |
| 501971 | Nov 20, 2000 | Nov 20, 2000 | Anadarko Petroleum Corp. | TXL North Unit #874 | 7,000 | 13537930 |
| 501970 | Nov 20, 2000 | Nov 20, 2000 | Anadarko Petroleum Corp. | TXL North Unit #875 | 7,000 | 13537929 |
| 501969 | Nov 20, 2000 | Nov 20, 2000 | Anadarko Petroleum Corp. | TXL North Unit #876 | 7,000 | 13537928 |
| 501968 | Nov 20, 2000 | Nov 20, 2000 | Anadarko Petroleum Corp. | TXL North Unit #878 | 7,000 | 13537927 |
| 502071 | Nov 17, 2000 | Nov 17, 2000 | Phillips Petroleum Company | Goldsmith Andector Unit #Q 7 | 6,550 | 13537936 |
| 502070 | Nov 17, 2000 | Nov 17, 2000 | Phillips Petroleum Company | Goldsmith Andector Unit #R 10 | 6,550 | 13537935 |
| 502069 | Nov 17, 2000 | Nov 17, 2000 | Phillips Petroleum Company | Goldsmith Andector Unit #N 95 | 6,550 | 13537934 |
| 502018 | Nov 16, 2000 | Nov 16, 2000 | Phillips Petroleum Company | Goldsmith Andector Unit #Q 9 | 6,550 | 13537933 |
| 501945 | Nov 14, 2000 | Nov 14, 2000 | Anadarko Petroleum Corp. | TXL North Unit #877 | 7,000 | 13537926 |
| 501852 | Nov 14, 2000 | Nov 14, 2000 | National Energy Group, Inc. | Goldsmith Adobe Unit #2618 | 6,100 | 13537925 |
| 501739 | Nov 14, 2000 | Nov 14, 2000 | National Energy Group, Inc. | Goldsmith Adobe Unit #2109 | 6,100 | 13537919 |
| 501738 | Nov 14, 2000 | Nov 14, 2000 | National Energy Group, Inc. | Goldsmith Adobe Unit #2110 | 6,100 | 13537918 |
| 501851 | Nov 10, 2000 | Nov 10, 2000 | National Energy Group, Inc. | Goldsmith Adobe Unit #909 | 6,100 | 13537924 |
| 501850 | Nov 10, 2000 | Nov 10, 2000 | National Energy Group, Inc. | Goldsmith Adobe Unit #1720 | 6,100 | 13537923 |
| 501787 | Nov 10, 2000 | Nov 10, 2000 | Great Western Drlg. Co. | Johnson, J. L. -31- #25 | 4,750 | 13537922 |
| 501810 | Nov 9, 2000 | Nov 9, 2000 | Occidental Permian Ltd. | Witcher, J. E. #96 | 4,600 | 13537921 |
| 501809 | Nov 9, 2000 | Nov 9, 2000 | Occidental Permian Ltd. | Witcher, J. E. #99 | 4,600 | 13537920 |
| 501769 | Nov 8, 2000 | Nov 8, 2000 | Four Star Oil and Gas Company | Headlee Devonian Unit #6501HH | 16,000 | 13506707 |
| 501721 | Nov 8, 2000 | Nov 8, 2000 | Phillips Petroleum Company | South Cowden Unit #225H | 4,900 | 13536682 |
| 501691 | Nov 8, 2000 | Nov 8, 2000 | Southwest Royalties, Inc. | Gist Unit #167 | 4,600 | 13537915 |
| 501677 | Nov 7, 2000 | Nov 7, 2000 | Phillips Petroleum Company | Emmons Unit #627WH | 4,950 | 13537280 |
| 501613 | Nov 6, 2000 | Nov 6, 2000 | Occidental Permian Ltd. | Witcher, J. E. PA #15 | 4,600 | 13537909 |
| 501612 | Nov 6, 2000 | Nov 6, 2000 | Occidental Permian Ltd. | Witcher, J. E. C #5 | 4,600 | 13537907 |
| 501611 | Nov 6, 2000 | Nov 6, 2000 | Occidental Permian Ltd. | Witcher, J. E. #100 | 4,600 | 13537908 |
| 501527 | Nov 2, 2000 | Nov 2, 2000 | Texaco E & P Inc. | Connell, W. E. NCT-2 #401 | 4,800 | 13537906 |
| 501527Amendment | Nov 2, 2000 | Nov 2, 2000 | Texaco E & P Inc. | Connell, W. E. NCT-2 #401 | 4,800 | 13537906 |
| 501517 | Nov 2, 2000 | Nov 2, 2000 | Phillips Petroleum Company | South Cowden Unit #621 | 5,000 | 13536847 |
| 501515 | Nov 2, 2000 | Nov 2, 2000 | Phillips Petroleum Company | South Cowden Unit #715H | 4,850 | 13537273 |
| 501501 | Nov 2, 2000 | Nov 2, 2000 | Occidental Permian Ltd. | Witcher, J. E. #97 | 4,600 | 13537905 |
| 501500 | Nov 2, 2000 | Nov 2, 2000 | Occidental Permian Ltd. | Witcher, J. E. #98 | 4,600 | 13537904 |
| 501460 | Nov 1, 2000 | Nov 1, 2000 | Phillips Petroleum Company | Emmons Unit #626WH | 4,850 | 13537278 |
| 501459 | Nov 1, 2000 | Nov 1, 2000 | Phillips Petroleum Company | South Cowden Unit #222H | 4,775 | 13534622 |
| 501381 | Nov 1, 2000 | Nov 1, 2000 | Texaco E & P Inc. | Connell, W. E., NCT-1 #41 | 8,620 | 13501455 |
| 501199 | Oct 31, 2000 | Oct 31, 2000 | Phillips Petroleum Company | Clyde-B #181 | 4,202 | 13536731 |
| 501371 | Oct 30, 2000 | Oct 30, 2000 | Pure Resources, L.P. | Blakeney #21 | 5,400 | 13537902 |
| 501369 | Oct 30, 2000 | Oct 30, 2000 | Pure Resources, L.P. | Blakeney #20 | 5,400 | 13537901 |
| 501334 | Oct 27, 2000 | Oct 27, 2000 | Pure Resources, L.P. | Cochran #15 | 5,500 | 13537900 |
| 501212 | Oct 25, 2000 | Oct 25, 2000 | Occidental Permian Ltd. | Witcher, J. E. -PB- #25 | 4,600 | 13537899 |
| 501211 | Oct 25, 2000 | Oct 25, 2000 | Occidental Permian Ltd. | Witcher, J. E. -PB- #24 | 4,600 | 13537898 |
| 501211Amendment | Oct 25, 2000 | Oct 25, 2000 | Occidental Permian Ltd. | Witcher, J. E. PB #24 | 4,600 | 13537898 |
| 501076 | Oct 23, 2000 | Oct 23, 2000 | Phillips Petroleum Company | South Cowden Unit #626WH | 4,850 | 13537278 |
| 501075 | Oct 23, 2000 | Oct 23, 2000 | Phillips Petroleum Company | South Cowden Unit #627WH | 4,950 | 13537280 |
| 501074 | Oct 23, 2000 | Oct 23, 2000 | Phillips Petroleum Company | South Cowden Unit #628WH | 4,850 | 13537279 |
| 501074Amendment | Oct 23, 2000 | Oct 23, 2000 | Phillips Petroleum Company | South Cowden Unit #628WH | 4,850 | 13537279 |
| 500914 | Oct 17, 2000 | Oct 17, 2000 | Occidental Permian Ltd. | Witcher, J. E. #104 | 4,600 | 13537897 |
| 500913 | Oct 17, 2000 | Oct 17, 2000 | Occidental Permian Ltd. | Witcher, J. E. #105 | 4,600 | 13537896 |
| 500740 | Oct 13, 2000 | Oct 13, 2000 | Phillips Petroleum Company | South Cowden Unit #226H | 4,760 | 13537133 |
| 500739 | Oct 13, 2000 | Oct 13, 2000 | Phillips Petroleum Company | South Cowden Unit #227H | 4,750 | 13537132 |
| 500606 | Oct 13, 2000 | Oct 13, 2000 | Fasken Oil and Ranch, Ltd. | Holt, O. B. "A" #3 | 5,900 | 13537894 |
| 499082 | Oct 13, 2000 | Oct 13, 2000 | Phillips Petroleum Company | Emmons Unit #215 | 4,800 | 13536158 |
| 500696 | Oct 12, 2000 | Oct 12, 2000 | Occidental Permian Ltd. | Witcher, J. E. #102 | 4,600 | 13537895 |
| 500663 | Oct 11, 2000 | Oct 11, 2000 | Texaco E & P Inc. | Holt, O. B. #136HH | 4,700 | 13537452 |
| 500662 | Oct 11, 2000 | Oct 11, 2000 | Texaco E & P Inc. | Holt, O. B. #126HH | 4,700 | 13536239 |
| 500620 | Oct 10, 2000 | Oct 10, 2000 | Pure Resources, L.P. | Toad A #10 | 4,500 | 13537893 |
| 500620Amendment | Oct 10, 2000 | Oct 10, 2000 | Pure Resources, L.P. | Toad A #10 | 4,500 | 13537893 |
| 500598 | Oct 10, 2000 | Oct 10, 2000 | Occidental Permian Ltd. | Witcher, J. E. #103 | 4,600 | 13537892 |
| 500597 | Oct 10, 2000 | Oct 10, 2000 | Occidental Permian Ltd. | Witcher, J. E. #95 | 4,600 | 13537891 |
| 500596 | Oct 10, 2000 | Oct 10, 2000 | Occidental Permian Ltd. | Witcher, J. E. #101 | 4,600 | 13537890 |
| 500379 | Oct 4, 2000 | Oct 4, 2000 | OXY USA Inc. | Tornado #1 | 8,900 | 13537889 |
| 500316 | Oct 3, 2000 | Oct 3, 2000 | Phillips Petroleum Company | Julena #1 | 3,950 | 13537888 |
| 500315 | Oct 3, 2000 | Oct 3, 2000 | Phillips Petroleum Company | Goldsmith Andector Unit #P115 | 6,550 | 13537887 |
| 500206 | Oct 3, 2000 | Oct 3, 2000 | Phillips Petroleum Company | Goldsmith Andector Unit #R115 | 6,550 | 13537884 |
| 500268 | Oct 1, 2000 | Oct 1, 2000 | OXY USA Inc. | N. Concho Bluff Queen Unit #69 | 4,600 | 13537886 |
| 500264 | Oct 1, 2000 | Oct 1, 2000 | OXY USA Inc. | N. Concho Bluff Queen Unit #66 | 4,600 | 13537885 |
| 499106 | Sep 29, 2000 | Sep 29, 2000 | Arco Permian | Smith, T. A. #7 | 5,230 | 13537873 |