| 474222 | Mar 10, 1998 | Mar 10, 1998 | Anadarko Petroleum Corp. | TXL North Unit #855 | 7,000 | 13537647 |
| 474221 | Mar 10, 1998 | Mar 10, 1998 | Anadarko Petroleum Corp. | TXL North Unit #871 | 7,000 | 13537648 |
| 474070 | Mar 9, 1998 | Mar 9, 1998 | Anadarko Petroleum Corp. | TXL North Unit #844 | 7,000 | 13537624 |
| 474069 | Mar 9, 1998 | Mar 9, 1998 | Anadarko Petroleum Corp. | TXL North Unit #845 | 7,000 | 13537625 |
| 474068 | Mar 9, 1998 | Mar 9, 1998 | Anadarko Petroleum Corp. | TXL North Unit #846 | 7,000 | 13537626 |
| 474067 | Mar 9, 1998 | Mar 9, 1998 | Anadarko Petroleum Corp. | TXL North Unit #848 | 7,000 | 13537627 |
| 474066 | Mar 9, 1998 | Mar 9, 1998 | Anadarko Petroleum Corp. | TXL North Unit #854 | 7,000 | 13537628 |
| 474065 | Mar 9, 1998 | Mar 9, 1998 | Anadarko Petroleum Corp. | TXL North Unit #858 | 7,000 | 13537629 |
| 474064 | Mar 9, 1998 | Mar 9, 1998 | Anadarko Petroleum Corp. | TXL North Unit #859 | 7,000 | 13537630 |
| 474063 | Mar 9, 1998 | Mar 9, 1998 | Anadarko Petroleum Corp. | TXL North Unit #862 | 7,000 | 13537631 |
| 474062 | Mar 9, 1998 | Mar 9, 1998 | Anadarko Petroleum Corp. | TXL North Unit #863 | 7,000 | 13537632 |
| 474061 | Mar 9, 1998 | Mar 9, 1998 | Anadarko Petroleum Corp. | TXL North Unit #864 | 7,000 | 13537633 |
| 474059 | Mar 9, 1998 | Mar 9, 1998 | Anadarko Petroleum Corp. | TXL North Unit #867 | 7,000 | 13537634 |
| 474058 | Mar 9, 1998 | Mar 9, 1998 | Anadarko Petroleum Corp. | TXL North Unit #872 | 7,000 | 13537932 |
| 473602 | Mar 9, 1998 | Mar 9, 1998 | Phillips Petroleum Company | North Penwell Unit #243 | 4,000 | 13537613 |
| 473602Amendment | Mar 9, 1998 | Mar 9, 1998 | Phillips Petroleum Company | North Penwell Unit #243 | 4,200 | 13537613 |
| 474056 | Mar 6, 1998 | Mar 6, 1998 | Anadarko Petroleum Corp. | TXL North Unit #870 | 7,000 | 13537636 |
| 474055 | Mar 6, 1998 | Mar 6, 1998 | Anadarko Petroleum Corp. | TXL North Unit #869 | 7,000 | 13537637 |
| 473784 | Mar 6, 1998 | Mar 6, 1998 | Phillips Petroleum Company | North Penwell Unit #252 | 4,000 | 13537620 |
| 473784Amendment | Mar 6, 1998 | Mar 6, 1998 | Conocophillips Company | North Penwell Unit #252 | 4,300 | 13537620 |
| 473783 | Mar 6, 1998 | Mar 6, 1998 | Phillips Petroleum Company | North Penwell Unit #253 | 4,000 | 13537621 |
| 473782 | Mar 6, 1998 | Mar 6, 1998 | Phillips Petroleum Company | North Penwell Unit #246 | 4,000 | 13537622 |
| 473782Amendment | Mar 6, 1998 | Mar 6, 1998 | Phillips Petroleum Company | North Penwell Unit #246 | 4,200 | 13537622 |
| 473901 | Mar 2, 1998 | Mar 2, 1998 | Titan Resources I, Inc. | Johnson, J. L. "O" #9 | 5,400 | 13537623 |
| 473698 | Feb 27, 1998 | Feb 27, 1998 | Lario Oil & Gas Company | Wallace 'C' #4Q | 4,150 | 13537619 |
| 473670 | Feb 27, 1998 | Feb 27, 1998 | Phillips Petroleum Company | North Penwell Unit #244 | 4,100 | 13537618 |
| 473669 | Feb 27, 1998 | Feb 27, 1998 | Phillips Petroleum Company | North Penwell Unit #245 | 4,100 | 13537617 |
| 473711 | Feb 25, 1998 | Feb 25, 1998 | Titan Resources I, Inc. | North Foster Unit #92 | 4,700 | 13532140 |
| 473605 | Feb 24, 1998 | Feb 24, 1998 | Phillips Petroleum Company | North Penwell Unit #240 | 4,900 | 13537616 |
| 473604 | Feb 24, 1998 | Feb 24, 1998 | Phillips Petroleum Company | North Penwell Unit #241 | 4,900 | 13537615 |
| 473603 | Feb 24, 1998 | Feb 24, 1998 | Phillips Petroleum Company | North Penwell Unit #242 | 4,900 | 13537614 |
| 473539 | Feb 24, 1998 | Feb 24, 1998 | Phillips Petroleum Company | North Penwell Unit #238 | 4,900 | 13537612 |
| 473538 | Feb 24, 1998 | Feb 24, 1998 | Phillips Petroleum Company | North Penwell Unit #237 | 5,000 | 13537611 |
| 473537 | Feb 24, 1998 | Feb 24, 1998 | Phillips Petroleum Company | North Penwell Unit #239 | 4,900 | 13537610 |
| 473448 | Feb 24, 1998 | Feb 24, 1998 | Phillips Petroleum Company | North Penwell Unit #236 | 4,900 | 13537607 |
| 453154 | Feb 24, 1998 | Feb 24, 1998 | Phillips Petroleum Company | Foster "J" #4 | 9,350 | 13537277 |
| 473335 | Feb 23, 1998 | Feb 23, 1998 | Titan Resources I, Inc. | North Foster Unit #156 | 4,200 | 13537608 |
| 473335Amendment | Feb 23, 1998 | Feb 23, 1998 | Titan Resources I, Inc. | North Foster Unit #156 | 5,000 | 13537608 |
| 473321 | Feb 17, 1998 | Feb 17, 1998 | Chevron U. S. A. Inc. | Goldsmith, C.A. et Al #652W | 9,850 | 13501030 |
| 473037 | Feb 11, 1998 | Feb 11, 1998 | Titan Resources I, Inc. | North Foster Unit #161 | 4,600 | 13537605 |
| 473181 | Feb 10, 1998 | Feb 10, 1998 | Titan Resources I, Inc. | Johnson Ranch "43" #1 | 5,600 | 13535644 |
| 473036 | Feb 9, 1998 | Feb 9, 1998 | Titan Resources I, Inc. | North Foster Unit #160 | 4,600 | 13537604 |
| 473035 | Feb 9, 1998 | Feb 9, 1998 | Titan Resources I, Inc. | North Foster Unit #158 | 4,600 | 13537603 |
| 473034 | Feb 9, 1998 | Feb 9, 1998 | Titan Resources I, Inc. | North Foster Unit #159 | 4,600 | 13537606 |
| 472939 | Feb 6, 1998 | Feb 6, 1998 | Union Oil Company of California | Holt, O. B. "C" #1801 | 12,900 | 13537601 |
| 472849 | Feb 6, 1998 | Feb 6, 1998 | Chevron U. S. A. Inc. | Goldsmith San Andres Unit #1026 | 5,860 | 13520027 |
| 472942 | Feb 5, 1998 | Feb 5, 1998 | Mid-America Pipeline Company | "8" Farstad #M 13 | 350 | 13537602 |
| 472924 | Feb 4, 1998 | Feb 4, 1998 | Titan Resources I, Inc. | North Foster Unit #163 | 4,600 | 13537598 |
| 472924Amendment | Feb 4, 1998 | Feb 4, 1998 | Titan Resources I, Inc. | North Foster Unit #163 | 5,000 | 13537598 |
| 472921 | Feb 4, 1998 | Feb 4, 1998 | Titan Resources I, Inc. | North Foster Unit #162 | 4,600 | 13537599 |
| 472919 | Feb 4, 1998 | Feb 4, 1998 | Titan Resources I, Inc. | North Foster Unit #157 | 4,600 | 13537600 |
| 472807 | Feb 4, 1998 | Feb 4, 1998 | Burleson, Lewis B. Inc. | Jessie B #14 | 4,000 | 13503491 |
| 472633 | Feb 4, 1998 | Feb 4, 1998 | Custer & Wright Operating, Inc. | Averitt, W. T. #1 | 4,900 | 13537597 |
| 472585 | Jan 26, 1998 | Jan 26, 1998 | Chevron U. S. A. Inc. | Goldsmith San Andres Unit #1236 | 4,600 | 13530238 |
| 472185 | Jan 14, 1998 | Jan 14, 1998 | Phillips Petroleum Company | North Penwell Unit #248 | 4,300 | 13537596 |
| 472184 | Jan 14, 1998 | Jan 14, 1998 | Phillips Petroleum Company | North Penwell Unit #249 | 4,300 | 13537595 |
| 472183 | Jan 14, 1998 | Jan 14, 1998 | Phillips Petroleum Company | North Penwell Unit #250 | 4,300 | 13537593 |
| 472182 | Jan 14, 1998 | Jan 14, 1998 | Phillips Petroleum Company | North Penwell Unit #251 | 4,300 | 13537594 |
| 471898 | Jan 13, 1998 | Jan 13, 1998 | National Energy Group, Inc. | Goldsmith Adobe Unit #3917 | 6,100 | 13537588 |
| 471897 | Jan 13, 1998 | Jan 13, 1998 | National Energy Group, Inc. | Goldsmith Adobe Unit #4107 | 6,100 | 13537589 |
| 471896 | Jan 13, 1998 | Jan 13, 1998 | National Energy Group, Inc. | Goldsmith Adobe Unit #4405 | 6,100 | 13538750 |
| 471895 | Jan 13, 1998 | Jan 13, 1998 | National Energy Group, Inc. | Goldsmith Adobe Unit #1405 | 6,100 | 13537591 |
| 472016 | Jan 9, 1998 | Jan 9, 1998 | Rim Operating, Inc. | Connell, W. E. #1 | 7,500 | 13501649 |
| 471998 | Jan 9, 1998 | Jan 9, 1998 | OXY USA Inc. | Kloh B-39 #7 | 8,500 | 13507505 |
| 471991 | Jan 9, 1998 | Jan 9, 1998 | Phillips Petroleum Company | North Penwell Unit #247 | 4,300 | 13537592 |
| 471899 | Jan 8, 1998 | Jan 8, 1998 | National Energy Group, Inc. | Goldsmith Adobe Unit #4106 | 6,100 | 13537587 |
| 471345 | Jan 5, 1998 | Jan 5, 1998 | Anadarko Petroleum Corp. | TXL South Unit #3902 | 6,550 | 13503662 |
| 471204 | Jan 5, 1998 | Jan 5, 1998 | Lease Operators, Inc. | Moose Queen Unit #8 | 4,579 | 13507202 |
| 469924 | Jan 5, 1998 | Jan 5, 1998 | Arco Permian | Johnson, J. L. "AB" #64 | 4,300 | 13531918 |
| 469923 | Jan 5, 1998 | Jan 5, 1998 | Arco Permian | Johnson J. L. "AB" #118 | 4,250 | 13533501 |
| 471804 | Jan 2, 1998 | Jan 2, 1998 | National Energy Group, Inc. | Goldsmith Adobe Unit #3918 | 6,100 | 13537586 |
| 471209 | Dec 22, 1997 | Dec 22, 1997 | Phillips Petroleum Company | Embar #14 | 5,314 | 13502710 |
| 470646 | Dec 19, 1997 | Dec 19, 1997 | IP Petroleum Company, Inc. | Millard "E" #2 | 9,100 | 13507285 |
| 471071 | Dec 10, 1997 | Dec 10, 1997 | Arco Permian | Corrigan Cowden Unit #318R | 4,700 | 13537585 |
| 470653 | Dec 8, 1997 | Dec 8, 1997 | Phillips Petroleum Company | Millard "D" #1 | 8,640 | 13507267 |
| 467699 | Dec 4, 1997 | Dec 4, 1997 | Texaco E & P Inc. | Ector T Fee "47" #1HH | 13,400 | 13537544 |
| 467699Amendment | Dec 4, 1997 | Dec 4, 1997 | Texaco E & P Inc. | Ector 'T' Fee "47" #1 | 12,455 | 13537544 |
| 470399 | Dec 2, 1997 | Dec 2, 1997 | Union Oil Company of California | Toad "A" #23 | 4,100 | 13536642 |
| 470142 | Nov 20, 1997 | Nov 20, 1997 | Texaco E & P Inc. | Holt, O. B. '11' #1H | 13,145 | 13537387 |
| 470142Amendment | Nov 20, 1997 | Nov 20, 1997 | Texaco E & P Inc. | Holt, O. B. '11' #1 | 13,200 | 13537387 |
| 467093 | Nov 20, 1997 | Nov 20, 1997 | Phillips Petroleum Company | Emmons Unit #215 | 4,800 | 13536158 |
| 470008 | Nov 18, 1997 | Nov 18, 1997 | Jones, Charles E., Jr. | Cowden, R. B. #1204 | 8,400 | 13503214 |
| 469687 | Nov 12, 1997 | Nov 12, 1997 | Great Western Drlg. Co. | Johnson, J. L. -31- #15R | 4,500 | 13537583 |
| 469794 | Nov 7, 1997 | Nov 7, 1997 | Four Star Oil and Gas Company | Headlee Devonian Unit #433HH | 14,240 | 13537584 |
| 469794Amendment | Nov 7, 1997 | Nov 7, 1997 | Four Star Oil and Gas Company | Headlee Devonian Unit #433HH | 14,240 | 13537584 |
| 469423 | Nov 3, 1997 | Nov 3, 1997 | Griffin Petroleum Company | Micki #1 | 7,100 | 13537581 |
| 469423Amendment | Nov 3, 1997 | Nov 3, 1997 | Griffin Petroleum Company | Micki #1 | 6,655 | 13537581 |
| 469464 | Oct 30, 1997 | Oct 30, 1997 | Texaco E & P Inc. | Averitt "F" No. 1 #1 | 10,150 | 13537582 |
| 469053 | Oct 29, 1997 | Oct 29, 1997 | National Energy Group, Inc. | Goldsmith Adobe Unit #1717 | 6,100 | 13537557 |
| 469052 | Oct 29, 1997 | Oct 29, 1997 | National Energy Group, Inc. | Goldsmith Adobe Unit #1718 | 6,100 | 13537556 |
| 467895 | Oct 28, 1997 | Oct 28, 1997 | Conoco Inc. | Johnson, J. L. "38" #6H | 6,000 | 13536052 |
| 467872 | Oct 28, 1997 | Oct 28, 1997 | Anadarko Petroleum Corp. | TXL -P- #6 | 9,000 | 13537548 |
| 467821 | Oct 28, 1997 | Oct 28, 1997 | Anadarko Petroleum Corp. | Cummins, H. E. 'A' #107 | 10,000 | 13537546 |
| 469266 | Oct 24, 1997 | Oct 24, 1997 | Anadarko Petroleum Corp. | TXL South Unit #6906 | 7,000 | 13537580 |
| 469265 | Oct 24, 1997 | Oct 24, 1997 | Anadarko Petroleum Corp. | TXL South Unit #6309 | 7,000 | 13537579 |
| 469264 | Oct 24, 1997 | Oct 24, 1997 | Anadarko Petroleum Corp. | TXL South Unit #6308 | 7,000 | 13537578 |
| 469263 | Oct 24, 1997 | Oct 24, 1997 | Anadarko Petroleum Corp. | TXL South Unit #6115 | 7,000 | 13537577 |
| 469262 | Oct 24, 1997 | Oct 24, 1997 | Anadarko Petroleum Corp. | TXL South Unit #6114 | 7,000 | 13537576 |
| 469261 | Oct 24, 1997 | Oct 24, 1997 | Anadarko Petroleum Corp. | TXL South Unit #5404 | 7,000 | 13537575 |
| 469260 | Oct 24, 1997 | Oct 24, 1997 | Anadarko Petroleum Corp. | TXL South Unit #5304 | 7,000 | 13537574 |