| 559732 | Mar 31, 2005 | Mar 31, 2005 | R K Petroleum Corp. | Martin | Holloway-Hall "A" #1 | 12,300 | 31731957 |
| 554305 | Dec 10, 2004 | Dec 10, 2004 | R K Petroleum Corp. | Martin | Alison #3 | 12,000 | 31734501 |
| 554304 | Dec 7, 2004 | Dec 7, 2004 | R K Petroleum Corporation | Dawson | Estes #1 | 8,900 | 11533130 |
| 549147 | Aug 13, 2004 | Aug 13, 2004 | R K Petroleum Corporation | Dawson | Weaver "A" #1 | 7,916 | 11531817 |
| 544910 | Apr 28, 2004 | Apr 28, 2004 | R K Petroleum Corporation | Martin | Dubose #1 | 12,000 | 31734454 |
| 529889 | Mar 31, 2003 | Mar 31, 2003 | R K Petroleum Corporation | Ward | University 30 #1 | 11,730 | 47534234 |
| 522524 | Aug 8, 2002 | Aug 8, 2002 | R K Petroleum Corporation | Martin | Sarah "A" #1 | 12,000 | 31734383 |
| 522524Amendment | Aug 8, 2002 | Aug 8, 2002 | R K Petroleum Corporation | Martin | Sarah "A" #1 | 12,000 | 31734383 |
| 519295 | Apr 24, 2002 | Apr 24, 2002 | R K Petroleum Corporation | Ward | University 31 Z #3 | 7,200 | 47534754 |
| 519077 | Apr 17, 2002 | Apr 17, 2002 | R K Petroleum Corporation | Martin | Holloway Hall B #1 | 9,227 | 31733732 |
| 519077Amendment | Apr 17, 2002 | Apr 17, 2002 | R K Petroleum Corporation | Martin | Holloway Hall B #1 | 11,884 | 31733732 |
| 514957 | Nov 2, 2001 | Nov 2, 2001 | R K Petroleum Corporation | Terry | Bucy #1 | 10,200 | 44531974 |
| 513593 | Sep 19, 2001 | Sep 19, 2001 | R K Petroleum Corporation | Martin | K., Pat #4R | 12,000 | 31734282 |
| 509167 | May 24, 2001 | May 24, 2001 | R K Petroleum Corporation | Martin | Williams, Peeler A #3 | 12,000 | 31734344 |
| 509166 | May 24, 2001 | May 24, 2001 | R K Petroleum Corp. | Martin | Exchange #2 | 12,000 | 31734343 |
| 505786 | Mar 15, 2001 | Mar 15, 2001 | R K Petroleum Corporation | Dawson | White #1 | 7,700 | 11533070 |
| 504916 | Feb 2, 2001 | Feb 2, 2001 | R K Petroleum Corporation | Andrews | R K - Cowden #1 | 7,650 | 00310230 |
| 504140 | Jan 23, 2001 | Jan 23, 2001 | R K Petroleum Corporation | Schleicher | Powell #1 | 6,300 | 41332112 |
| 503950 | Jan 17, 2001 | Jan 17, 2001 | R K Petroleum Corporation | Scurry | Davidson #2 | 5,100 | 41533839 |
| 499972 | Sep 27, 2000 | Sep 27, 2000 | R K Petroleum Corporation | Coke | Price #1 | 7,300 | 08131793 |
| 499727 | Sep 27, 2000 | Sep 27, 2000 | R K Petroleum Corporation | Scurry | Davidson #1R | 7,500 | 41530840 |
| 498527 | Aug 23, 2000 | Aug 23, 2000 | R K Petroleum Corporation | Martin | UV #3 | 12,000 | 31734289 |
| 496810 | Jul 7, 2000 | Jul 7, 2000 | R K Petroleum Corporation | Martin | Ann #3 | 12,000 | 31734285 |
| 495692 | Jun 1, 2000 | Jun 1, 2000 | R K Petroleum Corporation | Martin | Pat K. #4 | 12,000 | 31734282 |
| 491972 | Feb 17, 2000 | Feb 17, 2000 | R K Petroleum Corporation | Terry | Comanche #1 | 13,200 | 44531905 |
| 489028 | Nov 2, 1999 | Nov 2, 1999 | R K Petroleum Corporation | Borden | Newton #1R | 7,800 | 03331237 |
| 483075 | Mar 8, 1999 | Mar 8, 1999 | R K Petroleum Corporation | Upton | McGill #2 | 10,600 | 46132513 |
| 482792 | Feb 22, 1999 | Feb 22, 1999 | R K Petroleum Corporation | Upton | McGill #1 | 10,600 | 46132497 |
| 482725 | Feb 22, 1999 | Feb 22, 1999 | R K Petroleum Corporation | Ward | Sitton Estate 44 #2 | 10,700 | 47530811 |
| 481970 | Jan 14, 1999 | Jan 14, 1999 | R K Petroleum Corporation | Martin | Wolcott B #1R | 12,400 | 31731560 |
| 480815 | Nov 12, 1998 | Nov 12, 1998 | R K Petroleum Corporation | Terry | Wilkes #1 | 8,700 | 44531874 |
| 478629 | Aug 12, 1998 | Aug 12, 1998 | R K Petroleum Corporation | Martin | Smith Hall Community #1 | 11,350 | 31731444 |
| 476447 | May 21, 1998 | May 21, 1998 | R K Petroleum Corporation | Terry | Keesee #1 | 10,100 | 44531871 |
| 473133 | Feb 10, 1998 | Feb 10, 1998 | R K Petroleum Corporation | Martin | Wolcott B #1 | 8,245 | 31731560 |
| 473030 | Feb 9, 1998 | Feb 9, 1998 | R K Petroleum Corporation | Terry | Wheatley A #1 | 10,200 | 44531868 |
| 470276 | Nov 20, 1997 | Nov 20, 1997 | R K Petroleum Corporation | Terry | Earnest #1HH | 12,850 | 44530914 |
| 468113 | Sep 29, 1997 | Sep 29, 1997 | R K Petroleum Corporation | Ward | Sealy 75 #2R | 6,800 | 47530762 |
| 466328 | Aug 18, 1997 | Aug 18, 1997 | R K Petroleum Corporation | Terry | Wheatley #1 | 10,200 | 44531831 |
| 465225 | Jul 24, 1997 | Jul 24, 1997 | R K Petroleum Corporation | Dawson | Freeman #2 | 8,400 | 11532980 |
| 462182 | May 9, 1997 | May 9, 1997 | R K Petroleum Corporation | Terry | Ross #1 | 13,500 | 44531821 |
| 461792 | May 2, 1997 | May 2, 1997 | R K Petroleum Corporation | Ward | University 30 P #2HH | 7,300 | 47534475 |
| 461792Amendment | May 2, 1997 | May 2, 1997 | R K Petroleum Corporation | Ward | University 30 P #2HH | 7,300 | 47534475 |
| 461173 | Apr 30, 1997 | Apr 30, 1997 | R K Petroleum Corporation | Dawson | Rinewalt #1 | 8,400 | 11532967 |
| 461175 | Apr 21, 1997 | Apr 21, 1997 | R K Petroleum Corporation | Martin | RK Glass #2102 | 10,000 | 31733523 |
| 461174 | Apr 18, 1997 | Apr 18, 1997 | R K Petroleum Corporation | Dawson | Freeman #1 | 8,400 | 11532965 |
| 457870 | Jan 29, 1997 | Jan 29, 1997 | R K Petroleum Corporation | Pecos | Champagne #1 | 5,500 | 37136672 |
| 456966 | Jan 3, 1997 | Jan 3, 1997 | R K Petroleum Corporation | Ward | Sitton Estate 44 #2 | 10,700 | 47530811 |
| 453792 | Oct 15, 1996 | Oct 15, 1996 | R K Petroleum Corporation | Dawson | Carr #1 | 8,350 | 11532928 |
| 452636 | Sep 17, 1996 | Sep 17, 1996 | R K Petroleum Corporation | Winkler | University 11 #2 | 7,200 | 49532579 |
| 450529 | Jul 18, 1996 | Jul 18, 1996 | R K Petroleum Corporation | Dawson | Wasson #1R | 8,660 | 11530400 |
| 449661 | Jun 24, 1996 | Jun 24, 1996 | R K Petroleum Corporation | Ward | Pyote #2 | 7,200 | 47534385 |
| 448599 | Jun 6, 1996 | Jun 6, 1996 | R K Petroleum Corporation | Ward | Sealy 64 #1 | 7,000 | 47534379 |
| 448019 | May 17, 1996 | May 17, 1996 | R K Petroleum Corporation | Ward | Sealy 75 #1 | 7,000 | 47534376 |
| 447720 | May 6, 1996 | May 6, 1996 | R K Petroleum Corporation | Dawson | Nix 31 #2 | 8,350 | 11532892 |
| 447126 | Apr 19, 1996 | Apr 19, 1996 | R K Petroleum Corporation | Ward | Pyote #1 | 6,750 | 47534289 |
| 447104 | Apr 18, 1996 | Apr 18, 1996 | R K Petroleum Corporation | Ward | University 30 #4 | 7,300 | 47534362 |
| 442792 | Dec 14, 1995 | Dec 14, 1995 | R K Petroleum Corporation | Winkler | University 30 #3 | 7,300 | 49532511 |
| 440722 | Oct 10, 1995 | Oct 10, 1995 | R K Petroleum Corporation | Ward | Caprito #2 | 7,200 | 47534293 |
| 440721 | Oct 10, 1995 | Oct 10, 1995 | R K Petroleum Corporation | Ward | Caprito #1 | 7,200 | 47534292 |
| 440720 | Oct 10, 1995 | Oct 10, 1995 | R K Petroleum Corporation | Ward | Pyote #4 | 7,200 | 47534291 |
| 440719 | Oct 10, 1995 | Oct 10, 1995 | R K Petroleum Corporation | Ward | Pyote #3 | 7,200 | 47534290 |
| 440718 | Oct 10, 1995 | Oct 10, 1995 | R K Petroleum Corporation | Ward | Pyote #2 | 7,200 | 47530436 |
| 440717 | Oct 10, 1995 | Oct 10, 1995 | R K Petroleum Corporation | Ward | Pyote #1 | 7,200 | 47534289 |
| 439307 | Aug 25, 1995 | Aug 25, 1995 | R K Petroleum Corporation | Ward | University 30 #1 | 14,373 | 47534234 |
| 439226 | Aug 25, 1995 | Aug 25, 1995 | R K Petroleum Corporation | Winkler | University 30 P #1 | 7,300 | 49532491 |
| 439226Amendment | Aug 25, 1995 | Aug 25, 1995 | R K Petroleum Corporation | Winkler | University "30 P" #1 | 7,300 | 49532491 |
| 437801 | Jul 18, 1995 | Jul 18, 1995 | R K Petroleum Corporation | Ward | University 31 Z #1 | 7,300 | 47534252 |
| 437936 | Jul 2, 1995 | Jul 2, 1995 | R K Petroleum Corporation | Crockett | University B #1 | 8,500 | 10536073 |
| 433296 | Mar 1, 1995 | Mar 1, 1995 | R K Petroleum Corporation | Crockett | University C #1 | 8,600 | 10536836 |
| 433296Amendment | Mar 1, 1995 | Mar 1, 1995 | R K Petroleum Corporation | Crockett | University C #1 | 8,342 | 10536836 |
| 433121 | Feb 24, 1995 | Feb 24, 1995 | R K Petroleum Corporation | Ward | University 30 #2 | 7,300 | 47531971 |
| 432785 | Feb 13, 1995 | Feb 13, 1995 | R K Petroleum Corporation | Ward | RK University 31 #1 | 18,145 | 49530195 |
| 432785Amendment | Feb 13, 1995 | Feb 13, 1995 | R K Petroleum Corporation | Winkler | University 31 Z #2 | 11,765 | 49530195 |
| 432726 | Feb 13, 1995 | Feb 13, 1995 | R K Petroleum Corporation | Ward | University 32 #2 | 7,300 | 47534220 |
| 432726Amendment | Feb 13, 1995 | Feb 13, 1995 | R K Petroleum Corporation | Ward | University 32 #2 | 7,300 | 47534220 |
| 432725 | Feb 13, 1995 | Feb 13, 1995 | R K Petroleum Corporation | Ward | University 32 #3 | 7,300 | 47534221 |
| 430446 | Nov 30, 1994 | Nov 30, 1994 | R K Petroleum Corporation | Ward | University 32 #1 | 7,300 | 47534204 |
| 430357 | Nov 29, 1994 | Nov 29, 1994 | R K Petroleum Corporation | Winkler | University 30 #1 | 18,000 | 47534234 |
| 428223 | Sep 22, 1994 | Sep 22, 1994 | R K Petroleum Corporation | Winkler | University 11 #1 | 7,200 | 49532458 |
| 428223Amendment | Sep 22, 1994 | Sep 22, 1994 | R K Petroleum Corporation | Winkler | University 11 #1 | 7,258 | 49532458 |
| 427756 | Sep 7, 1994 | Sep 7, 1994 | R K Petroleum Corporation | Dawson | Newbrough-Truitt #1 | 8,350 | 11531837 |
| 426974 | Aug 17, 1994 | Aug 17, 1994 | R K Petroleum Corporation | Dawson | Nix 31 #1 | 8,350 | 11532831 |
| 421336 | Feb 25, 1994 | Feb 25, 1994 | R K Petroleum Corporation | Dawson | Thornton #1 | 8,350 | 11532811 |
| 417946 | Nov 9, 1993 | Nov 9, 1993 | R K Petroleum Corporation | Martin | Kathryn #3 | 12,000 | 31733953 |
| 416259 | Sep 24, 1993 | Sep 24, 1993 | R K Petroleum Corporation | Dawson | Martini #2 | 8,340 | 11532773 |
| 415355 | Aug 27, 1993 | Aug 27, 1993 | R K Petroleum Corporation | Glasscock | Bessie #1 | 10,175 | 17332307 |
| 414064 | Jul 22, 1993 | Jul 22, 1993 | R K Petroleum Corporation | Dawson | KWD #1 | 11,500 | 11532768 |
| 413717 | Jul 15, 1993 | Jul 15, 1993 | R K Petroleum Corporation | Martin | John #1 | 12,000 | 31733941 |
| 410388 | Apr 2, 1993 | Apr 2, 1993 | R K Petroleum Corporation | Dawson | Boatright #2 | 7,700 | 11532752 |
| 409706 | Mar 16, 1993 | Mar 16, 1993 | R K Petroleum Corporation | Glasscock | Bessie #1 | 10,400 | 17332307 |
| 407673 | Dec 30, 1992 | Dec 30, 1992 | R K Petroleum Corporation | Martin | Continental #1 | 11,500 | 31733927 |
| 407673Amendment | Dec 30, 1992 | Dec 30, 1992 | R K Petroleum Corporation | Martin | Continental #1 | 11,586 | 31733927 |
| 406072 | Nov 19, 1992 | Nov 19, 1992 | R K Petroleum Corporation | Upton | Louie #1 | 10,500 | 46133346 |
| 404636 | Oct 15, 1992 | Oct 15, 1992 | R K Petroleum Corporation | Terry | Hyman #1 | 8,000 | 44531663 |
| 403780 | Sep 24, 1992 | Sep 24, 1992 | R K Petroleum Corporation | Tom Green | Demere #1 | 7,100 | 45132197 |
| 403286 | Sep 15, 1992 | Sep 15, 1992 | R K Petroleum Corporation | Dawson | Homer #1 | 8,350 | 11532730 |
| 401418 | Jul 24, 1992 | Jul 24, 1992 | R K Petroleum Corporation | Martin | Baldwin, Fannie #3 | 11,800 | 31733914 |
| 399630 | May 29, 1992 | May 29, 1992 | R K Petroleum Corporation | Crockett | University D #1 | 8,600 | 10536083 |
| 397974 | Apr 2, 1992 | Apr 2, 1992 | R K Petroleum Corporation | Crockett | University B #1 | 8,600 | 10536073 |
| 396944 | Feb 27, 1992 | Feb 27, 1992 | R K Petroleum Corporation | Crockett | University A #1 | 8,600 | 10536064 |