| 459903 | Mar 14, 1997 | Mar 14, 1997 | Hugoton Energy Corporation | Chriesman "A" #3 | 8,320 | 17332743 |
| 459903Amendment | Mar 14, 1997 | Mar 14, 1997 | Hugoton Energy Corporation | Chriesman -A- #3 | 9,100 | 17332743 |
| 459879 | Mar 14, 1997 | Mar 14, 1997 | BTA Oil Producers | 8102 JV-P Calverley -B- #35000 | 8,300 | 17332742 |
| 459691Amendment | Mar 14, 1997 | Mar 14, 1997 | Parker & Parsley Development L.P | Spraberry Driver Unit #841 A | 8,410 | 17332741 |
| 459691 | Mar 10, 1997 | Mar 10, 1997 | Parker & Parsley Development L.P | Spraberry Driver Unit #841A | 8,410 | 17332741 |
| 459613 | Mar 7, 1997 | Mar 7, 1997 | Parker & Parsley Development L.P | Spraberry Driver Unit #322H | 7,120 | 17300318 |
| 459612 | Mar 7, 1997 | Mar 7, 1997 | Parker & Parsley Development L.P | Spraberry Driver Unit #351H | 7,000 | 17300791 |
| 459494 | Mar 5, 1997 | Mar 5, 1997 | Parker & Parsley Development L.P | Spraberry Driver Unit #262A | 8,360 | 17332740 |
| 459236 | Mar 3, 1997 | Mar 3, 1997 | Texaco E & P Inc. | Glasscock 'M' Fee #3H | 9,920 | 17332655 |
| 459236Amendment | Mar 3, 1997 | Mar 3, 1997 | Texaco E & P Inc. | Glasscock 'M' Fee #3H | 10,020 | 17332655 |
| 459206 | Feb 26, 1997 | Feb 26, 1997 | Parker & Parsley Development L.P | Spraberry Driver Unit #261A | 8,360 | 17332739 |
| 458804 | Feb 24, 1997 | Feb 24, 1997 | MDC Operating, Inc. | Cooper 3 #2 | 8,400 | 17332737 |
| 458926 | Feb 20, 1997 | Feb 20, 1997 | Cobra Oil & Gas Corporation | Calverley 28 #1 | 8,500 | 17332738 |
| 458508 | Feb 19, 1997 | Feb 19, 1997 | MDC Operating, Inc. | Powell, "A" #2 | 8,400 | 17332736 |
| 458493 | Feb 18, 1997 | Feb 18, 1997 | BTA Oil Producers | 8204 JV-P Elmer #12 | 8,300 | 17332735 |
| 458432 | Feb 13, 1997 | Feb 13, 1997 | Oryx Energy Company | West Howard-Glasscock Unit #1515 | 3,300 | 17332729 |
| 458428 | Feb 13, 1997 | Feb 13, 1997 | Oryx Energy Company | West Howard-Glasscock Unit #1615 | 3,300 | 17332733 |
| 458427 | Feb 13, 1997 | Feb 13, 1997 | Oryx Energy Company | West Howard-Glasscock Unit #1616 | 3,300 | 17332734 |
| 458435 | Feb 12, 1997 | Feb 12, 1997 | Oryx Energy Company | West Howard-Glasscock Unit #1511 | 3,300 | 17332726 |
| 458434 | Feb 12, 1997 | Feb 12, 1997 | Oryx Energy Company | West Howard-Glasscock Unit #1512 | 3,300 | 17332727 |
| 458433 | Feb 12, 1997 | Feb 12, 1997 | Oryx Energy Company | West Howard-Glasscock Unit #1514 | 3,300 | 17332728 |
| 458431 | Feb 12, 1997 | Feb 12, 1997 | Oryx Energy Company | West Howard-Glasscock Unit #1613 | 3,300 | 17332730 |
| 458430 | Feb 12, 1997 | Feb 12, 1997 | Oryx Energy Company | West Howard-Glasscock Unit #1612 | 3,300 | 17332731 |
| 458429 | Feb 12, 1997 | Feb 12, 1997 | Oryx Energy Company | West Howard-Glasscock Unit #1614 | 3,300 | 17332732 |
| 457292 | Feb 10, 1997 | Feb 10, 1997 | BTA Oil Producers | 9204 JV-P Whit -G- #1 | 8,200 | 17332723 |
| 458113 | Feb 6, 1997 | Feb 6, 1997 | MWJ Producing Company | Cook #1701 | 10,234 | 17332196 |
| 458159 | Feb 3, 1997 | Feb 3, 1997 | Cobra Oil & Gas Corporation | Calverley 29 #2 | 8,500 | 17332725 |
| 457928 | Jan 29, 1997 | Jan 29, 1997 | BTA Oil Producers | 8204 JV-P Elmer #11 | 8,300 | 17332724 |
| 471978 | Jan 8, 1997 | Jan 8, 1997 | Trend Exploration Company | Powell "2E" #53D | 8,800 | 17332857 |
| 456992 | Jan 6, 1997 | Jan 6, 1997 | Rangeland Petroleum Corporation | Cooper Unit #1 | 8,500 | 17332722 |
| 456903 | Jan 2, 1997 | Jan 2, 1997 | Hallwood Petroleum, Inc. | Swartz #1 | 10,500 | 17332721 |
| 456903Amendment | Jan 2, 1997 | Jan 2, 1997 | Hallwood Petroleum, Inc. | Swartz #1 | 10,500 | 17332721 |
| 456898 | Dec 31, 1996 | Dec 31, 1996 | Parker & Parsley Development L.P | Spraberry Driver Unit #1184A | 8,240 | 17332720 |
| 456896 | Dec 31, 1996 | Dec 31, 1996 | Parker & Parsley Development L.P | Spraberry Driver Unit #1183A | 8,260 | 17332719 |
| 456566 | Dec 30, 1996 | Dec 30, 1996 | Ventex Operating Corp. | Perry-Brooks #1 | 11,100 | 17331570 |
| 456765 | Dec 27, 1996 | Dec 27, 1996 | Parker & Parsley Development L.P | Spraberry Driver Unit #1423A | 8,340 | 17332718 |
| 456592 | Dec 20, 1996 | Dec 20, 1996 | Parker & Parsley Development L.P | Spraberry Driver Unit #932A | 8,240 | 17332716 |
| 455863 | Dec 18, 1996 | Dec 18, 1996 | BTA Oil Producers | 7613 JV-P Cox -F- #5 | 8,400 | 17332712 |
| 456311 | Dec 13, 1996 | Dec 13, 1996 | Cobra Oil & Gas Corporation | Ratliff 20 #1 | 8,500 | 17332715 |
| 456256 | Dec 12, 1996 | Dec 12, 1996 | Parker & Parsley Development L.P | Spraberry Driver Unit #772 A | 8,600 | 17332714 |
| 456252 | Dec 12, 1996 | Dec 12, 1996 | Parker & Parsley Development L.P | Spraberry Driver Unit #594A | 8,570 | 17332713 |
| 454881 | Dec 3, 1996 | Dec 3, 1996 | Royalty Land & Dev. Co., Inc. | Blalock #1A | 8,600 | 17332704 |
| 455681 | Nov 27, 1996 | Nov 27, 1996 | Stephens, Autry C. | Boles, N. J. #1 | 7,400 | 17331976 |
| 455668 | Nov 26, 1996 | Nov 26, 1996 | Parker & Parsley Development L.P | Spraberry Driver Unit #593A | 8,580 | 17332711 |
| 455410 | Nov 22, 1996 | Nov 22, 1996 | Huff, Jack | Schwartz, W. H. #1 | 10,105 | 17331413 |
| 455410Amendment | Nov 22, 1996 | Nov 22, 1996 | Huff, Jack | Schwartz, W. H. #1 | 9,972 | 17331413 |
| 455479 | Nov 21, 1996 | Nov 21, 1996 | Parker & Parsley Development L.P | Spraberry Driver Unit #606A | 8,540 | 17332710 |
| 455362 | Nov 19, 1996 | Nov 19, 1996 | Cobra Oil & Gas Corporation | Schwartz 1 #1 | 8,000 | 17332709 |
| 455082 | Nov 18, 1996 | Nov 18, 1996 | Stephens, Autry C. | Lane "40" #2 | 9,250 | 17332707 |
| 454046 | Nov 18, 1996 | Nov 18, 1996 | Mewbourne Oil Co. | Glasscock Unit #4 | 8,500 | 17332700 |
| 455118 | Nov 13, 1996 | Nov 13, 1996 | Parker & Parsley Development L.P | Spraberry Driver Unit #1181A | 8,270 | 17332708 |
| 452728 | Nov 13, 1996 | Nov 13, 1996 | Arkland Producing Co., Inc. | Butler #3 | 9,960 | 17332022 |
| 454974 | Nov 8, 1996 | Nov 8, 1996 | Parker & Parsley Development L.P | Spraberry Driver Unit #1182A | 8,260 | 17332705 |
| 454974Amendment | Nov 8, 1996 | Nov 8, 1996 | Parker & Parsley Development L.P | Spraberry Driver Unit #1182A | 8,260 | 17332705 |
| 454973 | Nov 8, 1996 | Nov 8, 1996 | Parker & Parsley Development L.P | Spraberry Driver Unit #883A | 8,350 | 17332706 |
| 454871 | Nov 7, 1996 | Nov 7, 1996 | Stephens, Autry C. | Lane "40" #1 | 9,250 | 17332703 |
| 454564 | Oct 31, 1996 | Oct 31, 1996 | Wagner & Brown, Ltd. | Edmondson A #731 | 8,700 | 17332671 |
| 454286 | Oct 23, 1996 | Oct 23, 1996 | Parker & Parsley Development L.P | Spraberry Driver Unit #196A | 8,480 | 17332702 |
| 454094 | Oct 18, 1996 | Oct 18, 1996 | Parker & Parsley Development L.P | Spraberry Driver Unit #642A | 8,420 | 17332701 |
| 454019 | Oct 17, 1996 | Oct 17, 1996 | BTA Oil Producers | 8102 JV-P Calverley -C- #1 | 8,400 | 17332699 |
| 453874 | Oct 15, 1996 | Oct 15, 1996 | Trend Exploration Company | Cooper "E" 35 #1 | 8,800 | 17332698 |
| 452570 | Oct 14, 1996 | Oct 14, 1996 | Powell, A. Brandt | Reynolds, Clyde #1 | 1,700 | 17332680 |
| 453769 | Oct 11, 1996 | Oct 11, 1996 | Parker & Parsley Development L.P | Spraberry Driver Unit #782A | 8,590 | 17332697 |
| 453687 | Oct 10, 1996 | Oct 10, 1996 | Trend Exploration Company | Powell "9F" #73D | 8,800 | 17332696 |
| 453653 | Oct 9, 1996 | Oct 9, 1996 | Parker & Parsley Development L.P | Spraberry Driver Unit #1492 A | 8,150 | 17332695 |
| 453518 | Oct 9, 1996 | Oct 9, 1996 | Mewbourne Oil Co. | Calverley "A" #5 | 8,200 | 17332693 |
| 453595 | Oct 8, 1996 | Oct 8, 1996 | Parker & Parsley Development L.P | Spraberry Driver Unit #1491A | 8,150 | 17332694 |
| 453489 | Oct 4, 1996 | Oct 4, 1996 | Parker & Parsley Development L.P | Spraberry Driver Unit #623A | 8,450 | 17332691 |
| 453488 | Oct 4, 1996 | Oct 4, 1996 | Parker & Parsley Development L.P | Spraberry Driver Unit #832A | 8,470 | 17332692 |
| 453144 | Sep 25, 1996 | Sep 25, 1996 | Parker & Parsley Development L.P | Spraberry Driver Unit #252A | 8,360 | 17332690 |
| 453142 | Sep 25, 1996 | Sep 25, 1996 | Parker & Parsley Development L.P | Spraberry Driver Unit #771 A | 8,590 | 17332689 |
| 452941 | Sep 23, 1996 | Sep 23, 1996 | Rangeland Petroleum Corporation | Western Cooper #2 | 8,500 | 17332688 |
| 452921 | Sep 19, 1996 | Sep 19, 1996 | Parker & Parsley Development L.P | Spraberry Driver Unit #1464A | 8,200 | 17332687 |
| 452920 | Sep 19, 1996 | Sep 19, 1996 | Parker & Parsley Development L.P | Spraberry Driver Unit #622A | 8,470 | 17332686 |
| 452917 | Sep 19, 1996 | Sep 19, 1996 | Parker & Parsley Development L.P | Spraberry Driver Unit #852A | 8,380 | 17332685 |
| 452698 | Sep 18, 1996 | Sep 18, 1996 | Stephens, Autry C. | Black, S.E. #42 #5 | 9,300 | 17332683 |
| 451302 | Sep 18, 1996 | Sep 18, 1996 | Cobra Oil & Gas Corporation | Kolb 12 #1 | 8,500 | 17332665 |
| 452734 | Sep 17, 1996 | Sep 17, 1996 | Trend Exploration Company | Hillger "1E" #33D | 8,400 | 17332684 |
| 452734Amendment | Sep 17, 1996 | Sep 17, 1996 | Trend Exploration Company | Hillger "1E" #33DH | 8,400 | 17332684 |
| 452709 | Sep 16, 1996 | Sep 16, 1996 | Cobra Oil & Gas Corporation | Calverley 29 #1 | 8,500 | 17332682 |
| 452648 | Sep 13, 1996 | Sep 13, 1996 | Parker & Parsley Development L.P | Spraberry Driver Unit #1463A | 8,220 | 17332681 |
| 452578 | Sep 13, 1996 | Sep 13, 1996 | Forte Energy Corporation | Woody, S. O. -B- #1 | 10,500 | 17332063 |
| 451758 | Sep 10, 1996 | Sep 10, 1996 | BTA Oil Producers | 9204 JV-P Whit -B- #3 | 8,400 | 17332670 |
| 452420 | Sep 9, 1996 | Sep 9, 1996 | Parker & Parsley Development L.P | Spraberry Driver Unit #171A | 8,500 | 17332678 |
| 452418 | Sep 9, 1996 | Sep 9, 1996 | Parker & Parsley Development L.P | Spraberry Driver Unit #604A | 8,530 | 17332679 |
| 452382 | Sep 9, 1996 | Sep 9, 1996 | Trend Exploration Company | Powell "9E" #63D | 8,800 | 17332677 |
| 452358 | Sep 6, 1996 | Sep 6, 1996 | Parker & Parsley Development L.P | Spraberry Driver Unit #605A | 8,570 | 17332676 |
| 452278 | Sep 4, 1996 | Sep 4, 1996 | Parker & Parsley Development L.P | Spraberry Driver Unit #394A | 8,550 | 17332675 |
| 451961 | Aug 27, 1996 | Aug 27, 1996 | Parker & Parsley Development L.P | Spraberry Driver Unit #445A | 8,450 | 17332673 |
| 451960 | Aug 27, 1996 | Aug 27, 1996 | Parker & Parsley Development L.P | Spraberry Driver Unit #401A | 8,520 | 17332674 |
| 451870 | Aug 23, 1996 | Aug 23, 1996 | Parker & Parsley Development L.P | Spraberry Driver Unit #592A | 8,580 | 17332672 |
| 451784 | Aug 23, 1996 | Aug 23, 1996 | Wagner & Brown, Ltd. | Edmondson A #731 | 9,000 | 17332671 |
| 451547 | Aug 15, 1996 | Aug 15, 1996 | Parker & Parsley Development L.P | Spraberry Driver Unit #826A | 8,480 | 17332669 |
| 451503 | Aug 14, 1996 | Aug 14, 1996 | Parker & Parsley Development L.P | Spraberry Driver Unit #825A | 8,490 | 17332668 |
| 451320 | Aug 8, 1996 | Aug 8, 1996 | Parker & Parsley Development L.P | Spraberry Driver Unit #751A | 8,630 | 38334610 |
| 451094 | Aug 2, 1996 | Aug 2, 1996 | Wagner & Brown, Ltd. | Edmondson A #732 | 9,000 | 17332664 |
| 450948 | Jul 30, 1996 | Jul 30, 1996 | Trend Exploration Company | Powell "2B" #33D | 8,800 | 17332663 |
| 450914 | Jul 29, 1996 | Jul 29, 1996 | Dyad Petroleum Company | Calverley #1 | 8,300 | 17332662 |
| 450752 | Jul 24, 1996 | Jul 24, 1996 | Parker & Parsley Development L.P | Spraberry Driver Unit #1474A | 8,180 | 17332657 |
| 450745 | Jul 24, 1996 | Jul 24, 1996 | Parker & Parsley Development L.P | Spraberry Driver Unit #801A | 8,550 | 17332658 |