| 467976 | Sep 25, 1997 | Sep 25, 1997 | Union Oil Company of California | Andrews | Dollarhide Unit #4312DH | 8,704 | 00335485 |
| 467878 | Sep 23, 1997 | Sep 23, 1997 | Union Oil Company of California | Pecos | Price Estate Unit #1 #3 | 17,200 | 37136764 |
| 467869 | Sep 22, 1997 | Sep 22, 1997 | Union Oil Company of California | Van Zandt | Brawner, L. M. 10 #18 | 5,100 | 46730986 |
| 467869Amendment | Sep 22, 1997 | Sep 22, 1997 | Union Oil Company of California | Van Zandt | Swain, W. F. 9 #13 | 5,100 | 46730986 |
| 467638 | Sep 22, 1997 | Sep 22, 1997 | Union Oil Company of California | Andrews | Parker, J. E. "B" #17 | 9,300 | 00338288 |
| 467637 | Sep 22, 1997 | Sep 22, 1997 | Union Oil Company of California | Andrews | Parker, J. E. "C" (Amoco) #24 | 9,300 | 00338287 |
| 466523 | Sep 16, 1997 | Sep 16, 1997 | Union Oil Company of California | Jackson | Mauritz, T. N. #9 | 6,416 | 23932293 |
| 467104 | Sep 3, 1997 | Sep 3, 1997 | Union Oil Company of California | Van Zandt | Brawner, L. M. 10 #17 | 5,700 | 46730983 |
| 467104Amendment | Sep 3, 1997 | Sep 3, 1997 | Union Oil Company of California | Van Zandt | Swain, W. F. 9 #12 | 5,700 | 46730983 |
| 465252 | Aug 18, 1997 | Aug 18, 1997 | Union Oil Company of California | Jackson | Maurtiz, T.N. #7 | 6,512 | 23932159 |
| 465251 | Aug 18, 1997 | Aug 18, 1997 | Union Oil Company of California | Jackson | Niebuhr, A. L. #8 | 6,400 | 23932052 |
| 465796 | Aug 8, 1997 | Aug 8, 1997 | Union Oil Company of California | Borden | Reinecke #4SD | 4,100 | 03331693 |
| 465795 | Aug 8, 1997 | Aug 8, 1997 | Union Oil Company of California | Borden | Reinecke #3SD | 4,100 | 03331692 |
| 465794 | Aug 8, 1997 | Aug 8, 1997 | Union Oil Company of California | Borden | Reinecke #2SD | 4,100 | 03331691 |
| 465793 | Aug 8, 1997 | Aug 8, 1997 | Union Oil Company of California | Borden | Reinecke #1SD | 4,100 | 03331690 |
| 465543 | Jul 30, 1997 | Jul 30, 1997 | Union Oil Company of California | Andrews | Brangus University #2 | 9,300 | 00338254 |
| 465541 | Jul 29, 1997 | Jul 29, 1997 | Union Oil Company of California | Andrews | Clarke, Frank #9 | 9,390 | 00338253 |
| 465457 | Jul 28, 1997 | Jul 28, 1997 | Union Oil Company of California | Andrews | Parker, J. E. "T" #4 | 9,300 | 00338251 |
| 465095 | Jul 18, 1997 | Jul 18, 1997 | Union Oil Company of California | Van Zandt | Crim, J. F. 16 #8 | 5,700 | 46730982 |
| 465095Amendment | Jul 18, 1997 | Jul 18, 1997 | Union Oil Company of California | Van Zandt | Crim, J. R. 16 #8 | 5,700 | 46730982 |
| 465094 | Jul 18, 1997 | Jul 18, 1997 | Union Oil Company of California | Van Zandt | Brawner, L. M. 10 #16 | 5,800 | 46730981 |
| 465094Amendment | Jul 18, 1997 | Jul 18, 1997 | Union Oil Company of California | Van Zandt | Brawner, L. M. 10 #16 | 5,650 | 46730981 |
| 465094Amendment | Jul 18, 1997 | Jul 18, 1997 | Union Oil Company of California | Van Zandt | Brawner, L. M. 10 #16 | 5,650 | 46730981 |
| 464992 | Jul 16, 1997 | Jul 16, 1997 | Union Oil Company of California | Wharton | Stovall, Edith #1 | 10,300 | 48133840 |
| 464774 | Jul 10, 1997 | Jul 10, 1997 | Union Oil Company of California | Van Zandt | Brawner, L. M. 10 #15 | 5,600 | 46730979 |
| 464774Amendment | Jul 10, 1997 | Jul 10, 1997 | Union Oil Company of California | Van Zandt | Brawner, L. M. 10 #15 | 5,600 | 46730979 |
| 464564 | Jul 3, 1997 | Jul 3, 1997 | Union Oil Company of California | Andrews | Parker, Bessie O. #5 | 12,560 | 00338244 |
| 464422 | Jun 30, 1997 | Jun 30, 1997 | Union Oil Company of California | Matagorda | E. O. Hanson et al Unit #1 | 13,450 | 32130910 |
| 464361 | Jun 27, 1997 | Jun 27, 1997 | Union Oil Company of California | Orange | Johnson, Sid #1 | 9,215 | 36130733 |
| 464161 | Jun 23, 1997 | Jun 23, 1997 | Union Oil Company of California | Jackson | Cravens, J. R. #1 | 6,278 | 23900583 |
| 464069 | Jun 20, 1997 | Jun 20, 1997 | Union Oil Company of California | Van Zandt | Maxfield, A. G. 38 #12 | 2,910 | 46730636 |
| 464068 | Jun 20, 1997 | Jun 20, 1997 | Union Oil Company of California | Van Zandt | Crim, R. C. 28 #4 | 3,105 | 46700202 |
| 463961 | Jun 18, 1997 | Jun 18, 1997 | Union Oil Company of California | Liberty | Hardin-Moran, N. E. #1ST | 8,000 | 29132250 |
| 456568 | Jun 16, 1997 | Jun 16, 1997 | Union Oil Company of California | Crockett | West, Wayne Ranch "B" #10 | 12,000 | 10537514 |
| 462678 | May 20, 1997 | May 20, 1997 | Union Oil Company of California | Van Zandt | Thompson, J. T. 49 #17 | 2,500 | 46730978 |
| 462677 | May 20, 1997 | May 20, 1997 | Union Oil Company of California | Van Zandt | Bracken, J. A. 35 #20 | 2,500 | 46730977 |
| 456577 | May 19, 1997 | May 19, 1997 | Union Oil Company of California | Crockett | West, Wayne Ranch "B" #9 | 12,000 | 10537508 |
| 456576 | May 19, 1997 | May 19, 1997 | Union Oil Company of California | Crockett | West, Wayne Ranch "A" #7 | 12,000 | 10537509 |
| 456576Amendment | May 19, 1997 | May 19, 1997 | Union Oil Company of California | Crockett | West, Wayne Ranch "A" #7HH | 15,400 | 10537509 |
| 456576Amendment | May 19, 1997 | May 19, 1997 | Union Oil Company of California | Crockett | West, Wayne Ranch "A" #7 | 12,742 | 10537509 |
| 456575 | May 19, 1997 | May 19, 1997 | Union Oil Company of California | Crockett | Acton, Pamela #9 | 11,800 | 10537510 |
| 456573 | May 19, 1997 | May 19, 1997 | Union Oil Company of California | Crockett | West, Wayne Ranch "A" #9 | 12,000 | 10537512 |
| 456573Amendment | May 19, 1997 | May 19, 1997 | Union Oil Company of California | Crockett | West, Wayne Ranch "A" #9 | 11,400 | 10537512 |
| 456571 | May 19, 1997 | May 19, 1997 | Union Oil Company of California | Crockett | West, Wayne Ranch "A" #8 | 12,000 | 10537513 |
| 456570 | May 19, 1997 | May 19, 1997 | Union Oil Company of California | Crockett | Acton, Pamela #10 | 11,800 | 10537511 |
| 456570Amendment | May 19, 1997 | May 19, 1997 | Union Oil Company of California | Crockett | Acton, Pamela #10HH | 15,400 | 10537511 |
| 462447 | May 15, 1997 | May 15, 1997 | Union Oil Company of California | Van Zandt | Brawner, L.M. 10 #14 | 5,700 | 46730976 |
| 461871 | May 1, 1997 | May 1, 1997 | Union Oil Company of California | Van Zandt | Smith, L. A. 103 #3 | 2,988 | 46700500 |
| 461870 | May 1, 1997 | May 1, 1997 | Union Oil Company of California | Van Zandt | Fowler, B. M. 301 #1 | 2,997 | 46700830 |
| 461529 | Apr 23, 1997 | Apr 23, 1997 | Union Oil Company of California | Matagorda | E. L. Summers Unit #2 | 13,675 | 32130950 |
| 461421 | Apr 21, 1997 | Apr 21, 1997 | Union Oil Company of California | Van Zandt | Wells, R. L. 47 #4 | 2,872 | 46700857 |
| 461420 | Apr 21, 1997 | Apr 21, 1997 | Union Oil Company of California | Van Zandt | Howell, R. A. 44 #5 | 2,450 | 46700967 |
| 461419 | Apr 21, 1997 | Apr 21, 1997 | Union Oil Company of California | Van Zandt | H.C. Gilbert 43 #8 | 3,150 | 46730638 |
| 461418 | Apr 21, 1997 | Apr 21, 1997 | Union Oil Company of California | Van Zandt | Thompson, J. T. 49 #6 | 2,970 | 46700845 |
| 461416 | Apr 21, 1997 | Apr 21, 1997 | Union Oil Company of California | Van Zandt | Fowler, E. L. 302 #3 | 2,990 | 46700725 |
| 459604 | Apr 3, 1997 | Apr 3, 1997 | Union Oil Company of California | Van Zandt | Smith, L. A. 103 #13 | 2,500 | 46730973 |
| 460210 | Mar 25, 1997 | Mar 25, 1997 | Union Oil Company of California | Van Zandt | S. W. Van Lewisville Unit #4406 | 3,216 | 46730402 |
| 460064 | Mar 25, 1997 | Mar 25, 1997 | Union Oil Company of California | Van Zandt | Thompson, I.W. 401 #14 | 2,600 | 46730760 |
| 459753 | Mar 12, 1997 | Mar 12, 1997 | Union Oil Company of California | Borden | Miller-Conrad #1 | 6,710 | 03331602 |
| 459603 | Mar 7, 1997 | Mar 7, 1997 | Union Oil Company of California | Van Zandt | Fowler, E. L. 302 #26 | 3,999 | 46730972 |
| 459203 | Feb 26, 1997 | Feb 26, 1997 | Union Oil Company of California | Van Zandt | Wells, R.L. 47 #3 | 2,981 | 46700861 |
| 459202 | Feb 26, 1997 | Feb 26, 1997 | Union Oil Company of California | Van Zandt | Taylor, T.J. 33 #4 | 2,969 | 46700597 |
| 458916 | Feb 20, 1997 | Feb 20, 1997 | Union Oil Company of California | Van Zandt | Consolidation 79 #1 | 2,993 | 46700848 |
| 458292 | Feb 6, 1997 | Feb 6, 1997 | Union Oil Company of California | Van Zandt | Bracken, J. A. 35 #5 | 2,996 | 46700627 |
| 458290 | Feb 6, 1997 | Feb 6, 1997 | Union Oil Company of California | Van Zandt | Gilbert, H. C. 43 #6 | 3,021 | 46700975 |
| 458289 | Feb 6, 1997 | Feb 6, 1997 | Union Oil Company of California | Van Zandt | Morris, W. E. 601 #2 | 2,970 | 46700847 |
| 458286 | Feb 6, 1997 | Feb 6, 1997 | Union Oil Company of California | Van Zandt | Bracken, J. A. 35 #6 | 2,986 | 46700626 |
| 458083 | Jan 31, 1997 | Jan 31, 1997 | Union Oil Company of California | Van Zandt | Fowler, E. L. 302 #25 | 2,500 | 46730966 |
| 458082 | Jan 31, 1997 | Jan 31, 1997 | Union Oil Company of California | Van Zandt | York, Ella 13 #20 | 3,050 | 46730968 |
| 458082Amendment | Jan 31, 1997 | Jan 31, 1997 | Union Oil Company of California | Van Zandt | York, W. A. 13 #20 | 3,050 | 46730968 |
| 458077 | Jan 31, 1997 | Jan 31, 1997 | Union Oil Company of California | Van Zandt | Taylor, T. J. 33 #10 | 2,500 | 46730967 |
| 458076 | Jan 31, 1997 | Jan 31, 1997 | Union Oil Company of California | Van Zandt | Bracken, J. A. 35 #16 | 2,500 | 46730969 |
| 458075 | Jan 31, 1997 | Jan 31, 1997 | Union Oil Company of California | Van Zandt | Gilbert, H. C. 43 #12 | 2,500 | 46730970 |
| 456474 | Dec 18, 1996 | Dec 18, 1996 | Union Oil Company of California | Orange | Quinn, B.E. #4 | 9,000 | 36130734 |
| 456471 | Dec 18, 1996 | Dec 18, 1996 | Union Oil Company of California | Orange | Quinn, B. E. #3 | 9,000 | 36130735 |
| 456471Amendment | Dec 18, 1996 | Dec 18, 1996 | Union Oil Company of California | Orange | Quinn, B. E. #3 | 9,000 | 36130735 |
| 455825 | Dec 3, 1996 | Dec 3, 1996 | Union Oil Company of California | Andrews | Cowden, E.P. "B" #1BR | 2,400 | 00308014 |
| 455423 | Nov 20, 1996 | Nov 20, 1996 | Union Oil Company of California | Orange | Johnson, Sid #1 | 9,000 | 36130733 |
| 454837 | Nov 7, 1996 | Nov 7, 1996 | Union Oil Company of California | Ector | Toad "A" #10 | 4,520 | 13536552 |
| 454335 | Oct 24, 1996 | Oct 24, 1996 | Union Oil Company of California | Van Zandt | Swain, O.L. 11 B #23 | 2,900 | 46730963 |
| 454335Amendment | Oct 24, 1996 | Oct 24, 1996 | Union Oil Company of California | Van Zandt | Swain, O.L. 11 B #23 | 2,900 | 46730963 |
| 454053 | Oct 22, 1996 | Oct 22, 1996 | Union Oil Company of California | Gaines | Braemar #3 | 4,800 | 16535076 |
| 452722 | Oct 20, 1996 | Oct 20, 1996 | Union Oil Company of California | Van Zandt | Tunnell, I. P. 300 #20 | 2,450 | 46730961 |
| 453916 | Oct 18, 1996 | Oct 18, 1996 | Union Oil Company of California | Gaines | North Riley Unit #318 | 7,300 | 16535071 |
| 453915 | Oct 18, 1996 | Oct 18, 1996 | Union Oil Company of California | Gaines | North Riley Unit #1273 | 7,350 | 16535070 |
| 453917 | Oct 17, 1996 | Oct 17, 1996 | Union Oil Company of California | Gaines | Caledonia #4 | 4,800 | 16535069 |
| 452927 | Oct 15, 1996 | Oct 15, 1996 | Union Oil Company of California | Van Zandt | Bracken, J. A. 503 #19 | 2,500 | 46730962 |
| 453759 | Oct 14, 1996 | Oct 14, 1996 | Union Oil Company of California | Gaines | North Riley Unit #1292 | 7,300 | 16535065 |
| 453739 | Oct 14, 1996 | Oct 14, 1996 | Union Oil Company of California | Gaines | Macintosh #1 | 4,700 | 16535064 |
| 452488 | Sep 11, 1996 | Sep 11, 1996 | Union Oil Company of California | Andrews | Clarke, Frank #7 | 9,400 | 00305585 |
| 452319 | Sep 5, 1996 | Sep 5, 1996 | Union Oil Company of California | Van Zandt | Thompson, I. W. 401 #27 | 2,450 | 46730958 |
| 452318 | Sep 5, 1996 | Sep 5, 1996 | Union Oil Company of California | Van Zandt | Murphree J. J. 31 #12 | 2,400 | 46730959 |
| 452316 | Sep 5, 1996 | Sep 5, 1996 | Union Oil Company of California | Van Zandt | Bracken, J. A. 35 #19 | 2,450 | 46730957 |
| 451883 | Aug 27, 1996 | Aug 27, 1996 | Union Oil Company of California | Winkler | E. W. Cowden Unit #1 | 7,210 | 49503499 |
| 449910 | Jul 29, 1996 | Jul 29, 1996 | Union Oil Company of California | Jackson | Mauritz, T. N. #7 | 6,512 | 23932159 |
| 449779 | Jul 29, 1996 | Jul 29, 1996 | Union Oil Company of California | Jackson | Wiese, Della #10 | 6,416 | 23932294 |
| 449525 | Jul 18, 1996 | Jul 18, 1996 | Union Oil Company of California | Jackson | Fowler, W. B. #5 | 6,222 | 23932376 |
| 449756 | Jul 3, 1996 | Jul 3, 1996 | Union Oil Company of California | Andrews | Parker Unit #8411A | 9,875 | 00337902 |
| 448468 | Jun 24, 1996 | Jun 24, 1996 | Union Oil Company of California | Jackson | Niebuhr, A. L. #10 | 6,416 | 23932298 |
| 449523 | Jun 20, 1996 | Jun 20, 1996 | Union Oil Company of California | Jackson | Zetka, Josef #1 | 5,522 | 23900542 |