| 466259 | Sep 12, 1997 | Sep 12, 1997 | BTA Oil Producers | 7613 JV-P Urc -A- #2 | 8,300 | 17332804 |
| 467418 | Sep 10, 1997 | Sep 10, 1997 | Pioneer Natural Res. USA, Inc. | Spraberry Driver Unit #111A | 8,580 | 17332822 |
| 467416 | Sep 10, 1997 | Sep 10, 1997 | Pioneer Natural Res. USA, Inc. | Spraberry Driver Unit #396A | 8,570 | 17332821 |
| 467415 | Sep 10, 1997 | Sep 10, 1997 | Pioneer Natural Res. USA, Inc. | Spraberry Driver Unit #1106A | 8,480 | 17332820 |
| 467414 | Sep 10, 1997 | Sep 10, 1997 | Pioneer Natural Res. USA, Inc. | Spraberry Driver Unit #397A | 8,550 | 17332819 |
| 467412 | Sep 10, 1997 | Sep 10, 1997 | Pioneer Natural Res. USA, Inc. | Spraberry Driver Unit #1105A | 8,500 | 17332818 |
| 467365 | Sep 9, 1997 | Sep 9, 1997 | Pioneer Natural Res. USA, Inc. | Spraberry Driver Unit #112A | 8,580 | 17332817 |
| 466945 | Sep 9, 1997 | Sep 9, 1997 | Dyad Petroleum Company | Hillger "B" #1 | 7,950 | 17332816 |
| 466945Amendment | Sep 9, 1997 | Sep 9, 1997 | Dyad Petroleum Company | Hillger "B" #1 | 7,950 | 17332816 |
| 467218 | Sep 5, 1997 | Sep 5, 1997 | Pioneer Natural Res. USA, Inc. | Spraberry Driver Unit #1115A | 8,400 | 17332815 |
| 467218Amendment | Sep 5, 1997 | Sep 5, 1997 | Pioneer Natural Res. USA, Inc. | Spraberry Driver Unit #1115A | 8,400 | 17332815 |
| 467217 | Sep 5, 1997 | Sep 5, 1997 | Pioneer Natural Res. USA, Inc. | Spraberry Driver Unit #1116A | 8,390 | 17332814 |
| 466946 | Sep 5, 1997 | Sep 5, 1997 | Dyad Petroleum Company | Hillger, Alton #1 | 7,950 | 17332812 |
| 466946Amendment | Sep 5, 1997 | Sep 5, 1997 | Dyad Petroleum Company | Hillger, Alton #1H | 7,950 | 17332812 |
| 466946Amendment | Sep 5, 1997 | Sep 5, 1997 | Dyad Petroleum Company | Hillger, Alton #1H | 7,950 | 17332812 |
| 467097 | Sep 3, 1997 | Sep 3, 1997 | Pioneer Natural Res. USA, Inc. | Spraberry Driver Unit #395A | 8,570 | 17332813 |
| 466836 | Sep 2, 1997 | Sep 2, 1997 | Wagner & Brown, Ltd. | Edmondson B #132 | 9,500 | 17332811 |
| 466836Amendment | Sep 2, 1997 | Sep 2, 1997 | Wagner & Brown, Ltd. | Edmondson B #132 | 10,000 | 17332811 |
| 466820 | Sep 2, 1997 | Sep 2, 1997 | High Sky Oil & Gas | Paloma #1 | 10,000 | 17331789 |
| 466728 | Aug 25, 1997 | Aug 25, 1997 | Santa FE Energy Resources, Inc. | Pac "52B" #1 | 10,025 | 17332810 |
| 466531 | Aug 20, 1997 | Aug 20, 1997 | Parker & Parsley Development L.P | Spraberry Driver Unit #131A | 8,550 | 17332809 |
| 466529 | Aug 20, 1997 | Aug 20, 1997 | Parker & Parsley Development L.P | Spraberry Driver Unit #132A | 8,530 | 17332808 |
| 466394 | Aug 20, 1997 | Aug 20, 1997 | Mewbourne Oil Co. | Garden City "6" #2 | 8,200 | 17332806 |
| 466063 | Aug 20, 1997 | Aug 20, 1997 | Fina Pipe Line Co. | American Petrofina Pipe Line #1108 | 560 | 17332807 |
| 466375 | Aug 18, 1997 | Aug 18, 1997 | Hallwood Petroleum, Inc. | Sherrod-Books #2 | 10,550 | 17332805 |
| 465994 | Aug 8, 1997 | Aug 8, 1997 | Kindred Petroleum Company | Thomason D #1 | 10,700 | 17331984 |
| 465914 | Aug 7, 1997 | Aug 7, 1997 | BTA Oil Producers | 9702 JV-P Michael #1 | 8,300 | 17332803 |
| 465808 | Aug 4, 1997 | Aug 4, 1997 | Parker & Parsley Development L.P | Bryans, M.V. "B" #6 | 8,600 | 17331334 |
| 465227 | Aug 4, 1997 | Aug 4, 1997 | O'Neill Properties, Ltd. | Powell #6 | 8,500 | 17332799 |
| 465227Amendment | Aug 4, 1997 | Aug 4, 1997 | Cox, John L. | Powell #6 | 8,500 | 17332799 |
| 465623 | Jul 29, 1997 | Jul 29, 1997 | Parker & Parsley Development L.P | Spraberry Driver Unit #1108A | 8,450 | 17332802 |
| 465622 | Jul 29, 1997 | Jul 29, 1997 | Parker & Parsley Development L.P | Spraberry Driver Unit #1107A | 8,480 | 17332801 |
| 465315 | Jul 23, 1997 | Jul 23, 1997 | Parker & Parsley Development L.P | Spraberry Driver Unit #923A | 8,230 | 17332800 |
| 464648 | Jul 18, 1997 | Jul 18, 1997 | BTA Oil Producers | 8102 JV-P Calverley -D- #1 | 8,400 | 17332790 |
| 464036 | Jul 18, 1997 | Jul 18, 1997 | Huff, Jack | Schwartz, W. H. #2 | 10,200 | 17331491 |
| 464876 | Jul 14, 1997 | Jul 14, 1997 | Scana Petroleum Resources, Inc. | Calverley #301 | 8,500 | 17332798 |
| 464823 | Jul 14, 1997 | Jul 14, 1997 | Santa FE Energy Resources, Inc. | Pac "15" #1 | 10,025 | 17332797 |
| 464763 | Jul 10, 1997 | Jul 10, 1997 | Parker & Parsley Development L.P | Spraberry Driver Unit #1192A | 8,240 | 17332796 |
| 464762 | Jul 10, 1997 | Jul 10, 1997 | Parker & Parsley Development L.P | Spraberry Driver Unit #1191A | 8,240 | 17332795 |
| 464761 | Jul 10, 1997 | Jul 10, 1997 | Parker & Parsley Development L.P | Spraberry Driver Unit #1185A | 8,230 | 17332793 |
| 464760 | Jul 10, 1997 | Jul 10, 1997 | Parker & Parsley Development L.P | Spraberry Driver Unit #446A | 8,450 | 17332794 |
| 464618 | Jul 7, 1997 | Jul 7, 1997 | Parker & Parsley Development L.P | Spraberry Driver Unit #597A | 8,580 | 17332792 |
| 464617 | Jul 7, 1997 | Jul 7, 1997 | Parker & Parsley Development L.P | Spraberry Driver Unit #331A | 8,610 | 17300079 |
| 464571 | Jul 3, 1997 | Jul 3, 1997 | Parker & Parsley Development L.P | Cox "B" #3 | 7,005 | 17300638 |
| 464540 | Jul 3, 1997 | Jul 3, 1997 | BTA Oil Producers | 8102 JV-P Urc -B- #1 | 8,300 | 17332791 |
| 456731 | Jun 30, 1997 | Jun 30, 1997 | Rangeland Petroleum Corporation | Cooper 34 #2 | 8,600 | 17332717 |
| 464201 | Jun 24, 1997 | Jun 24, 1997 | Parker & Parsley Development L.P | Spraberry Driver Unit #126A | 8,580 | 17332789 |
| 464100 | Jun 24, 1997 | Jun 24, 1997 | Texaco E & P Inc. | Glasscock 'AK' Unit #1 | 10,400 | 17332788 |
| 464100Amendment | Jun 24, 1997 | Jun 24, 1997 | Texaco E & P Inc. | Glasscock 'AK' Unit #1 | 10,400 | 17332788 |
| 463813 | Jun 23, 1997 | Jun 23, 1997 | Cox, John L. | Calverley "C" #6 | 9,000 | 17332786 |
| 463977 | Jun 19, 1997 | Jun 19, 1997 | Texan Petroleum Corporation | Hardy #2 | 10,200 | 17332787 |
| 462731 | Jun 18, 1997 | Jun 18, 1997 | BTA Oil Producers | 8102 JV-P U. R. C. #1 | 8,300 | 17332775 |
| 463354 | Jun 10, 1997 | Jun 10, 1997 | Cox, John L. | Calverley "B" #6 | 8,400 | 17332784 |
| 463481 | Jun 6, 1997 | Jun 6, 1997 | Parker & Parsley Development L.P | Spraberry Driver Unit #751A | 8,640 | 17332785 |
| 463399 | Jun 5, 1997 | Jun 5, 1997 | Parker & Parsley Development L.P | Spraberry Driver Unit #853A | 8,410 | 17332782 |
| 463398 | Jun 5, 1997 | Jun 5, 1997 | Parker & Parsley Development L.P | Spraberry Driver Unit #125A | 8,580 | 17332783 |
| 463302 | Jun 4, 1997 | Jun 4, 1997 | Parker & Parsley Development L.P | Spraberry Driver Unit #827A | 8,470 | 17332781 |
| 463301 | Jun 4, 1997 | Jun 4, 1997 | Parker & Parsley Development L.P | Spraberry Driver Unit #829A | 8,490 | 17332780 |
| 463295 | Jun 4, 1997 | Jun 4, 1997 | Tmbr/Sharp Drilling, Inc. | Jones "46" #1 | 10,100 | 17332779 |
| 462937 | May 30, 1997 | May 30, 1997 | BTA Oil Producers | 8102 JV-P Calverley -B- #5 | 8,300 | 17332776 |
| 462937Amendment | May 30, 1997 | May 30, 1997 | BTA Oil Producers | 8102 JV-P Calverley -B- #5 | 8,170 | 17332776 |
| 463008 | May 28, 1997 | May 28, 1997 | Parker & Parsley Development L.P | Spraberry Driver Unit #103A | 8,610 | 17332778 |
| 463007 | May 28, 1997 | May 28, 1997 | Parker & Parsley Development L.P | Spraberry Driver Unit #761A | 8,640 | 17332777 |
| 462732 | May 21, 1997 | May 21, 1997 | BTA Oil Producers | 7613 JV-P U. R. C. "A" #1 | 8,300 | 17332774 |
| 462727 | May 21, 1997 | May 21, 1997 | Parker & Parsley Development L.P | Spraberry Driver Unit #607A | 8,800 | 17332773 |
| 462479 | May 15, 1997 | May 15, 1997 | Parker & Parsley Development L.P | Spraberry Driver Unit #449A | 8,660 | 17300903 |
| 462478 | May 15, 1997 | May 15, 1997 | Parker & Parsley Development L.P | Spraberry Driver Unit #742A | 8,650 | 17332771 |
| 462477 | May 15, 1997 | May 15, 1997 | Parker & Parsley Development L.P | Spraberry Driver Unit #581A | 8,660 | 17332772 |
| 462374 | May 13, 1997 | May 13, 1997 | Parker & Parsley Development L.P | Spraberry Driver Unit #1084A | 8,500 | 17332770 |
| 462216 | May 9, 1997 | May 9, 1997 | Santa FE Energy Resources, Inc. | Pac "54" #1 | 10,100 | 17332769 |
| 462203 | May 8, 1997 | May 8, 1997 | Santa FE Energy Resources, Inc. | Pac "44" #1 | 10,100 | 17332768 |
| 462203Amendment | May 8, 1997 | May 8, 1997 | Santa FE Energy Resources, Inc. | Pac "44" #1 | 10,100 | 17332768 |
| 461755 | May 2, 1997 | May 2, 1997 | Texaco E & P Inc. | Barbee, B. H., Jr. '62' #1 | 9,800 | 17332767 |
| 461708 | Apr 28, 1997 | Apr 28, 1997 | Parker & Parsley Development L.P | Spraberry Driver Unit #181A | 8,510 | 17332766 |
| 461707 | Apr 28, 1997 | Apr 28, 1997 | Parker & Parsley Development L.P | Spraberry Driver Unit #182A | 8,490 | 17332765 |
| 461678 | Apr 28, 1997 | Apr 28, 1997 | Hallwood Petroleum, Inc. | Sherrod-Books #1RE | 10,600 | 17332549 |
| 461167 | Apr 25, 1997 | Apr 25, 1997 | First Reserve Oil & Gas Co | Clay, H. R. "C" #3 | 1,950 | 17332761 |
| 461505 | Apr 22, 1997 | Apr 22, 1997 | Tmbr/Sharp Drilling, Inc. | Glass "22" #1 | 10,000 | 17332764 |
| 461504 | Apr 22, 1997 | Apr 22, 1997 | Cobra Oil & Gas Corporation | Kolb 12 #2 | 8,500 | 17332763 |
| 460300 | Apr 22, 1997 | Apr 22, 1997 | Mewbourne Oil Co. | Garden City "6" #1 | 8,200 | 17332747 |
| 461168 | Apr 18, 1997 | Apr 18, 1997 | First Reserve Oil & Gas Co | Clay, H. R. "B" #3 | 1,950 | 17332762 |
| 461149 | Apr 18, 1997 | Apr 18, 1997 | BTA Oil Producers | 9204 JV-P Whit -H- #1 | 8,200 | 17332760 |
| 460995 | Apr 16, 1997 | Apr 16, 1997 | Hugoton Energy Corporation | Chriesman #2 | 8,320 | 17332758 |
| 460995Amendment | Apr 16, 1997 | Apr 16, 1997 | Hugoton Energy Corporation | Chriesman #2 | 9,100 | 17332758 |
| 460991 | Apr 16, 1997 | Apr 16, 1997 | Hugoton Energy Corporation | Chriesman A #4 | 8,320 | 17332759 |
| 460991Amendment | Apr 16, 1997 | Apr 16, 1997 | Hugoton Energy Corporation | Chriesman -A- #4 | 9,100 | 17332759 |
| 461037 | Apr 11, 1997 | Apr 11, 1997 | Parker & Parsley Development L.P | Spraberry Driver Unit #596A | 8,580 | 17332757 |
| 461036 | Apr 11, 1997 | Apr 11, 1997 | Parker & Parsley Development L.P | Spraberry Driver Unit #595A | 8,590 | 17332756 |
| 460964 | Apr 10, 1997 | Apr 10, 1997 | Parker & Parsley Development L.P | Spraberry Driver Unit #102 A | 8,630 | 17332755 |
| 460963 | Apr 10, 1997 | Apr 10, 1997 | Parker & Parsley Development L.P | Spraberry Driver Unit #101 A | 8,640 | 17332754 |
| 460804 | Apr 10, 1997 | Apr 10, 1997 | O'Neill Properties, Ltd. | Powell #5 | 8,500 | 17332752 |
| 460917 | Apr 9, 1997 | Apr 9, 1997 | Parker & Parsley Development L.P | Spraberry Driver Unit #614 A | 8,540 | 17332753 |
| 460917Amendment | Apr 9, 1997 | Apr 9, 1997 | Pioneer Natural Res. USA, Inc. | Spraberry Driver Unit #614 A | 8,540 | 17332753 |
| 460685 | Apr 2, 1997 | Apr 2, 1997 | Parker & Parsley Development L.P | Spraberry Driver Unit #844A | 8,380 | 17332751 |
| 460684 | Apr 2, 1997 | Apr 2, 1997 | Parker & Parsley Development L.P | Spraberry Driver Unit #843A | 8,380 | 17332750 |
| 460537 | Mar 31, 1997 | Mar 31, 1997 | Parker & Parsley Development L.P | Spraberry Driver Unit #615A | 8,510 | 17332749 |
| 460431 | Mar 27, 1997 | Mar 27, 1997 | Parker & Parsley Development L.P | Spraberry Driver Unit #842A | 8,450 | 17332748 |
| 460171 | Mar 21, 1997 | Mar 21, 1997 | Mewbourne Oil Co. | Calverley "A" #6 | 8,200 | 17332746 |
| 460170 | Mar 21, 1997 | Mar 21, 1997 | Mewbourne Oil Co. | Calverley "44" #1 | 8,200 | 17332998 |
| 460034 | Mar 18, 1997 | Mar 18, 1997 | Ventex Operating Corp. | Riley #1 | 10,500 | 17332744 |