| 452947 | Sep 24, 1996 | Sep 24, 1996 | Threshold Development Co. | Wise | Cap Yates #10 | 5,887 | 49732790 |
| 451805 | Aug 27, 1996 | Aug 27, 1996 | Threshold Development Co. | Throckmorton | Walters #2 | 4,800 | 44735647 |
| 444651 | Feb 14, 1996 | Feb 14, 1996 | Threshold Development Co. | Throckmorton | Walters #1 | 4,800 | 44735603 |
| 444651Amendment | Feb 14, 1996 | Feb 14, 1996 | Threshold Development Co. | Throckmorton | Walters #1A | 4,800 | 44735603 |
| 439145 | Aug 28, 1995 | Aug 28, 1995 | Threshold Development Co. | Jack | Cap Yates #13D | 6,000 | 23738179 |
| 439146 | Aug 23, 1995 | Aug 23, 1995 | Threshold Development Co. | Jack | Fayette Yates #15D | 6,000 | 23738178 |
| 434993 | Apr 20, 1995 | Apr 20, 1995 | Threshold Development Co. | Taylor | Seymore #1 | 3,700 | 44133724 |
| 432715 | Feb 15, 1995 | Feb 15, 1995 | Threshold Development Co. | Mitchell | Strain, L.A. #9 | 1,700 | 33533707 |
| 431179 | Dec 28, 1994 | Dec 28, 1994 | Threshold Development Co. | Liberty | Bryan Unit #1 | 12,500 | 29132216 |
| 430180 | Nov 23, 1994 | Nov 23, 1994 | Threshold Development Co. | Wise | Yates, I.G. #33 | 4,675 | 49733800 |
| 429863 | Nov 15, 1994 | Nov 15, 1994 | Threshold Development Co. | Jack | Yates, Billie #17D | 5,725 | 23738131 |
| 429862 | Nov 10, 1994 | Nov 10, 1994 | Threshold Development Co. | Jack | Yates, Billie #18D | 5,000 | 23738130 |
| 429862Amendment | Nov 10, 1994 | Nov 10, 1994 | Threshold Development Co. | Jack | Yates, Billie #18D | 5,800 | 23738130 |
| 429046 | Oct 17, 1994 | Oct 17, 1994 | Threshold Development Co. | Mitchell | La Strain #8 | 1,700 | 33533678 |
| 429045 | Oct 17, 1994 | Oct 17, 1994 | Threshold Development Co. | Mitchell | La Strain "A" #5 | 1,700 | 33533677 |
| 421515 | Mar 3, 1994 | Mar 3, 1994 | Threshold Development Co. | Mitchell | La Strain #6 | 1,700 | 33533662 |
| 421516 | Mar 2, 1994 | Mar 2, 1994 | Threshold Development Co. | Mitchell | La Strain #7 | 1,700 | 33533661 |
| 418772 | Dec 2, 1993 | Dec 2, 1993 | Threshold Development Co. | Liberty | Amoco Unit #1 | 12,600 | 29132195 |
| 416762 | Oct 6, 1993 | Oct 6, 1993 | Threshold Development Co. | Mitchell | Strain, L.A. #5 | 1,700 | 33533656 |
| 409527 | Mar 10, 1993 | Mar 10, 1993 | Threshold Development Co. | Wise | Yates, I.G. #33 | 5,800 | 49733800 |
| 409527Amendment | Mar 10, 1993 | Mar 10, 1993 | Threshold Development Co. | Wise | Yates, I.G. #33 | 5,673 | 49733800 |
| 409055 | Feb 26, 1993 | Feb 26, 1993 | Threshold Development Co. | Wise | Yates, I. G. #9 | 5,750 | 49732316 |
| 408823 | Feb 10, 1993 | Feb 10, 1993 | Threshold Development Co. | Mitchell | Strain, L.A. #4 | 1,700 | 33533630 |
| 408822 | Feb 10, 1993 | Feb 10, 1993 | Threshold Development Co. | Mitchell | Strain, L.A. #3 | 1,700 | 33533629 |
| 404789 | Oct 21, 1992 | Oct 21, 1992 | Threshold Development Co. | Mitchell | Strain, L. A. #1 | 1,700 | 33533618 |
| 404788 | Oct 21, 1992 | Oct 21, 1992 | Threshold Development Co. | Mitchell | Strain, L. A. #2 | 1,700 | 33533617 |
| 404483 | Oct 16, 1992 | Oct 16, 1992 | Threshold Development Co. | Jack | Yates, I.G. #32 | 4,850 | 23738006 |
| 404483Amendment | Oct 16, 1992 | Oct 16, 1992 | Threshold Development Co. | Jack | Yates, I.G. #32 | 4,850 | 23738006 |
| 403978 | Sep 30, 1992 | Sep 30, 1992 | Threshold Development Co. | Jack | Fayette Yates #6A | 4,250 | 23738004 |
| 403978Amendment | Sep 30, 1992 | Sep 30, 1992 | Threshold Development Co. | Jack | Fayette Yates #6A | 4,210 | 23738004 |
| 400659 | Jul 17, 1992 | Jul 17, 1992 | Threshold Development Co. | Wise | Cap Yates #11 | 4,950 | 49732785 |
| 400515 | Jul 17, 1992 | Jul 17, 1992 | Threshold Development Co. | Jack | Stewart, Anne C. #1 | 5,980 | 23732539 |
| 400517 | Jul 8, 1992 | Jul 8, 1992 | Threshold Development Co. | Jack | Yates, Billie #10 | 5,730 | 23702610 |
| 400517Amendment | Jul 8, 1992 | Jul 8, 1992 | Threshold Development Co. | Jack | Yates, Billie #10 | 5,730 | 23702610 |
| 400516 | Jul 1, 1992 | Jul 1, 1992 | Threshold Development Co. | Fisher | Hall, Judge Pike #1 | 4,550 | 15132189 |
| 391597 | Sep 24, 1991 | Sep 24, 1991 | Threshold Development Co. | Throckmorton | Bruton, Preston #2 | 3,999 | 44735214 |
| 388780 | Jun 7, 1991 | Jun 7, 1991 | Threshold Development Co. | Throckmorton | Bruton, Preston #1 | 3,999 | 44735189 |
| 388780Amendment | Jun 7, 1991 | Jun 7, 1991 | Threshold Development Co. | Throckmorton | Bruton, Preston #1 | 3,999 | 44735189 |
| 375927 | Oct 15, 1990 | Oct 15, 1990 | Threshold Development Co. | Jack | Gowdy #1S | 700 | 23737751 |
| 376185 | Aug 16, 1990 | Aug 16, 1990 | Threshold Development Co. | Jack | Williams, T. D. #1A | 3,500 | 23737757 |
| 376185Amendment | Aug 16, 1990 | Aug 16, 1990 | Threshold Development Co. | Jack | Williams, T. D. #1A | 3,500 | 23737757 |
| 376023 | Jul 31, 1990 | Jul 31, 1990 | Threshold Development Co. | Jack | Gowdy #1 | 5,384 | 23733157 |
| 364844 | Oct 6, 1989 | Oct 6, 1989 | Threshold Development Co. | Palo Pinto | Fulgham, Opal #2 | 4,200 | 36334000 |
| 359988 | Jun 6, 1989 | Jun 6, 1989 | Threshold Development Co. | Young | E & A #1 | 3,600 | 50340015 |
| 357278 | Mar 21, 1989 | Mar 21, 1989 | Threshold Development Co. | Jack | Stewart, Anne C. #3WD | 2,900 | 23737606 |
| 355437 | Jan 23, 1989 | Jan 23, 1989 | Threshold Development Co. | Jack | Stewart, Anne C. #1WD | 999 | 23783822 |
| 346800 | May 20, 1988 | May 20, 1988 | Threshold Development Co. | Fisher | Hall, Pike #1 | 4,600 | 15132189 |
| 344318 | Mar 23, 1988 | Mar 23, 1988 | Threshold Development Co. | Throckmorton | Young #1 | 4,900 | 44734857 |
| 333105 | Jul 21, 1987 | Jul 21, 1987 | Threshold Development Co. | Jack | Hill, Anna #1 | 3,999 | 23737386 |
| 188315 | Mar 14, 1983 | Mar 14, 1983 | Threshold Development Co. | Jack | Ellis, Gordon #2 | 1,800 | 23735036 |
| 183715 | Dec 31, 1982 | Dec 31, 1982 | Threshold Development Co. | Cochran | Seiber, E. H. #6 | 5,200 | 07932059 |
| 183712 | Dec 31, 1982 | Dec 31, 1982 | Threshold Development Co. | Cochran | Seiber, E. H. #7 | 5,200 | 07932060 |
| 183711 | Dec 31, 1982 | Dec 31, 1982 | Threshold Development Co. | Cochran | Seiber, E. H. #8 | 5,200 | 07931639 |
| 183709 | Dec 31, 1982 | Dec 31, 1982 | Threshold Development Co. | Cochran | Seiber, E. H. #9 | 5,200 | 07931638 |
| 181957 | Dec 31, 1982 | Dec 31, 1982 | Threshold Development Co. | Jack | Ellis, Gordon #1 | 1,800 | 23734935 |
| 166177 | Jul 14, 1982 | Jul 14, 1982 | Threshold Development Co. | Yoakum | Sanders, Virginia #1 | 12,100 | 50132254 |
| 152847 | Mar 11, 1982 | Mar 11, 1982 | Threshold Development Co. | Stephens | Winston "A" #1-WS | 1,750 | 42933221 |
| 140999 | Nov 18, 1981 | Nov 18, 1981 | Threshold Development Co. | Crosby | Wood, Clark "A" #8 | 4,400 | 10730679 |
| 140998 | Nov 18, 1981 | Nov 18, 1981 | Threshold Development Co. | Crosby | Wood, Clark "A" #4 | 4,400 | 10730678 |
| 140996 | Nov 18, 1981 | Nov 18, 1981 | Threshold Development Co. | Crosby | Wood, Clark "A" #2 | 4,400 | 10730677 |
| 140191 | Nov 9, 1981 | Nov 9, 1981 | Threshold Development Co. | Garza | Price "A" #2 | 4,100 | 16931698 |
| 134743 | Sep 28, 1981 | Sep 28, 1981 | Threshold Development Co. | Cochran | Seiber, E.H. #4 | 5,250 | 07931463 |
| 134738 | Sep 28, 1981 | Sep 28, 1981 | Threshold Development Co. | Cochran | Seiber, E.H. #3 | 5,250 | 07931462 |
| 134720 | Sep 28, 1981 | Sep 28, 1981 | Threshold Development Co. | Cochran | Hudson, Jack "B" #4 | 5,200 | 07931461 |
| 134608 | Sep 28, 1981 | Sep 28, 1981 | Threshold Development Co. | Cochran | Hudson, Jack "B" #5 D | 5,200 | 07931456 |
| 134607 | Sep 28, 1981 | Sep 28, 1981 | Threshold Development Co. | Cochran | Seiber, E.H. #5D | 5,250 | 07931457 |
| 132829 | Sep 10, 1981 | Sep 10, 1981 | Threshold Development Co. | Jack | Reagan, Dorotha #1 | 5,700 | 23734045 |
| 132127 | Sep 1, 1981 | Sep 1, 1981 | Threshold Development Co. | Jack | Burt, Vernon "A" #1 | 5,200 | 23734024 |
| 129403 | Aug 10, 1981 | Aug 10, 1981 | Threshold Development Co. | Lamb | Brown, Oscar D #1 | 8,000 | 27930248 |
| 127914 | Jul 30, 1981 | Jul 30, 1981 | Threshold Development Co. | Crosby | Coles, T.C. #3 | 4,200 | 10730643 |
| 127913 | Jul 30, 1981 | Jul 30, 1981 | Threshold Development Co. | Crosby | Price, Guy & Anna Belle #4 | 4,100 | 10730642 |
| 126365 | Jul 23, 1981 | Jul 23, 1981 | Threshold Development Co. | Crosby | Williams, J.G. #2 | 4,800 | 10730640 |
| 126361 | Jul 23, 1981 | Jul 23, 1981 | Threshold Development Co. | Crosby | Coles, T.C. #2 | 4,200 | 10730639 |
| 126360 | Jul 23, 1981 | Jul 23, 1981 | Threshold Development Co. | Gaines | Thompson, Ida #1 | 11,620 | 16532160 |
| 126004 | Jul 21, 1981 | Jul 21, 1981 | Threshold Development Co. | Crosby | Coles, T. C. #1 | 4,200 | 10730637 |
| 124044 | Jul 7, 1981 | Jul 7, 1981 | Threshold Development Co. | Yoakum | Seiber, E.H. #2 | 5,250 | 50132120 |
| 121693 | Jun 18, 1981 | Jun 18, 1981 | Threshold Development Co. | Crosby | Price #2 | 4,100 | 10730636 |
| 118751 | May 20, 1981 | May 20, 1981 | Threshold Development Co. | Sterling | Jackett, H.F. #1 | 7,800 | 43130978 |
| 118749 | May 20, 1981 | May 20, 1981 | Threshold Development Co. | Coke | O'Banion, Eleanor M. #1 | 7,000 | 08131014 |
| 116779 | May 1, 1981 | May 1, 1981 | Threshold Development Co. | Crosby | Davis, J.f.jr. #3 | 4,600 | 10730623 |
| 116776 | May 1, 1981 | May 1, 1981 | Threshold Development Co. | Crosby | Davis, J.f.jr. #4 | 4,600 | 10730622 |
| 115681 | Apr 20, 1981 | Apr 20, 1981 | Threshold Development Co. | Crosby | Ferguson, Wesley #5 | 4,550 | 10730621 |
| 114838 | Apr 13, 1981 | Apr 13, 1981 | Threshold Development Co. | Crosby | Ferguson, Wesley #3 | 4,700 | 10730614 |
| 114988 | Apr 9, 1981 | Apr 9, 1981 | Threshold Development Co. | Crosby | Robertson, A.L. "D" #2 | 4,800 | 10730616 |
| 114022 | Apr 3, 1981 | Apr 3, 1981 | Threshold Development Co. | Crosby | Ferguson, Wesley #2 | 4,700 | 10730604 |
| 114021 | Apr 3, 1981 | Apr 3, 1981 | Threshold Development Co. | Crosby | Ferguson, Wesley #4 | 4,700 | 10730603 |
| 110462 | Mar 3, 1981 | Mar 3, 1981 | Threshold Development Co. | Crosby | Caddell, Delton #1 | 4,500 | 10730600 |
| 106868 | Jan 29, 1981 | Jan 29, 1981 | Threshold Development Co. | Cochran | Hudson, Jack "B" #3 | 5,100 | 07931338 |
| 106867 | Jan 29, 1981 | Jan 29, 1981 | Threshold Development Co. | Cochran | Hudson, Jack "B" #2 | 5,200 | 07931337 |
| 105286 | Jan 14, 1981 | Jan 14, 1981 | Threshold Development Co. | Yoakum | Highland Resources #1 | 5,531 | 50131973 |
| 104914 | Dec 31, 1980 | Dec 31, 1980 | Threshold Development Co. | Yoakum | Bedford, Ludie #1 | 5,325 | 50131968 |
| 102917 | Dec 19, 1980 | Dec 19, 1980 | Threshold Development Co. | Yoakum | Dunigan-Pike #1 | 9,300 | 50131960 |
| 99845 | Nov 19, 1980 | Nov 19, 1980 | Threshold Development Co. | Lubbock | Winneford, Evie #1 | 4,687 | 30330632 |
| 99844 | Nov 19, 1980 | Nov 19, 1980 | Threshold Development Co. | Lubbock | Reasoner, Earl #1 | 4,720 | 30330631 |
| 99843 | Nov 19, 1980 | Nov 19, 1980 | Threshold Development Co. | Lubbock | Reynolds, T. E. #1 | 5,200 | 30330630 |
| 99044 | Nov 14, 1980 | Nov 14, 1980 | Threshold Development Co. | Stephens | Rogers, R. M. "27" #2 | 4,600 | 42932734 |
| 99043 | Nov 14, 1980 | Nov 14, 1980 | Threshold Development Co. | Stephens | Rogers, R. M. "27" #3 | 4,600 | 42932733 |
| 97163 | Oct 28, 1980 | Oct 28, 1980 | Threshold Development Co. | Yoakum | Cal-Mon Pike #1 | 9,300 | 50131932 |
| 95392 | Oct 10, 1980 | Oct 10, 1980 | Threshold Development Co. | Crosby | James, T. C., Jr. #12 | 4,700 | 10730568 |
| 95390 | Oct 10, 1980 | Oct 10, 1980 | Threshold Development Co. | Crosby | James, T. C., Jr. #11 | 4,700 | 10730567 |