| 899631 | May 14, 2024 | May 14, 2024 | Walter Oil & Gas Corporation | Irion | McCullough #1 | 7,600 | 23536634 |
| 764704 | Jun 19, 2013 | Jun 19, 2013 | Walter Oil & Gas Corporation | Matagorda | Cornelius #1 | 10,000 | 32132358 |
| 761836 | May 3, 2013 | May 3, 2013 | Walter Oil & Gas Corporation | High IS-LB | S.T. 23-L N/2 SW/4 #001 | 13,700 | 70830385 |
| 703640 | Oct 14, 2010 | Oct 14, 2010 | Walter Oil & Gas Corporation | Crockett | Childress #1H | 8,500 | 10541225 |
| 696102 | May 18, 2010 | May 18, 2010 | Walter Oil & Gas Corporation | Brazoria | Mikeska #1 | 11,500 | 03933043 |
| 694759 | Apr 21, 2010 | Apr 21, 2010 | Walter Oil & Gas Corporation | Orange | State Tract 2 #1 | 13,000 | 36130903 |
| 688398 | Dec 10, 2009 | Dec 10, 2009 | Walter Oil & Gas Corporation | Sterling | Foster Ranch #1 | 8,252 | 43133213 |
| 646006 | Sep 17, 2007 | Sep 17, 2007 | Walter Oil & Gas Corporation | Sterling | Foster Ranch #1 | 9,000 | 43133213 |
| 631842 | Jan 18, 2007 | Jan 18, 2007 | Walter Oil & Gas Corporation | High IS-LB | State Tract 24-L N/2 SW/4 #1 | 16,000 | 70830380 |
| 628855 | Nov 10, 2006 | Nov 10, 2006 | Walter Oil & Gas Corporation | Liberty | Middleton, John G. et Al #1 | 10,200 | 29132684 |
| 628625 | Nov 7, 2006 | Nov 7, 2006 | Walter Oil & Gas Corporation | Matagorda | Hallemann #1 | 13,500 | 32132148 |
| 628625Amendment | Nov 7, 2006 | Nov 7, 2006 | Walter Oil & Gas Corporation | Matagorda | Hallemann #1ST | 13,500 | 32132148 |
| 628625Amendment | Nov 7, 2006 | Nov 7, 2006 | Walter Oil & Gas Corporation | Matagorda | Hallemann #1ST | 13,500 | 32132148 |
| 627388 | Oct 12, 2006 | Oct 12, 2006 | Walter Oil & Gas Corporation | Colorado | Broyles #1 | 6,300 | 08932342 |
| 621100 | Jun 16, 2006 | Jun 16, 2006 | Walter Oil & Gas Corporation | High IS-LB | S.T. 24-L S/2 SW/4 #1 | 16,000 | 70830376 |
| 611608 | Dec 28, 2005 | Dec 28, 2005 | Walter Oil & Gas Corporation | Polk | BP America 791 #1 | 10,500 | 37331054 |
| 610698 | Dec 7, 2005 | Dec 7, 2005 | Walter Oil & Gas Corporation | Matagorda | Kasman #1 | 14,500 | 32132087 |
| 606497 | Sep 19, 2005 | Sep 19, 2005 | Walter Oil & Gas Corporation | Matgrda IS-SB | State Tract 806-S #1 | 11,500 | 60330265 |
| 605230 | Aug 19, 2005 | Aug 19, 2005 | Walter Oil & Gas Corporation | Colorado | Broyles #1 | 6,600 | 08932342 |
| 557582 | Feb 11, 2005 | Feb 11, 2005 | Walter Oil & Gas Corporation | Aransas | Roark #1 | 9,000 | 00730866 |
| 551504 | Sep 24, 2004 | Sep 24, 2004 | Walter Oil & Gas Corporation | Liberty | Penn-Cat #2 | 11,450 | 29132561 |
| 551504Amendment | Sep 24, 2004 | Sep 24, 2004 | Walter Oil & Gas Corporation | Liberty | Penn-Cat #2 | 11,450 | 29132561 |
| 549258 | Aug 6, 2004 | Aug 6, 2004 | Walter Oil & Gas Corporation | Wharton | Northington #2 | 8,500 | 48134683 |
| 546263 | Jul 30, 2004 | Jul 30, 2004 | Walter Oil & Gas Corporation | Colorado | Broyles "A" #2 | 3,800 | 08932368 |
| 545476 | May 7, 2004 | May 7, 2004 | Walter Oil & Gas Corporation | Nueces | State Tract 64 #1 | 12,500 | 35533632 |
| 540889 | Jan 16, 2004 | Jan 16, 2004 | Walter Oil & Gas Corporation | Hardin | B.p.america "B" 792 Unit #1 | 10,500 | 19932905 |
| 534209 | Jul 15, 2003 | Jul 15, 2003 | Walter Oil & Gas Corporation | Colorado | Broyles #1 | 8,000 | 08932342 |
| 534209Amendment | Jul 15, 2003 | Jul 15, 2003 | Walter Oil & Gas Corporation | Colorado | Chesterville, North (Yegua 7) #1 | 7,015 | 08932342 |
| 534209Amendment | Jul 15, 2003 | Jul 15, 2003 | Walter Oil & Gas Corporation | Colorado | Broyles #1 | 7,015 | 08932342 |
| 533339Amendment | Jun 20, 2003 | Jun 20, 2003 | Walter Oil & Gas Corporation | Liberty | Bonner #2 | 13,798 | 29132484 |
| 533191 | Jun 17, 2003 | Jun 17, 2003 | Walter Oil & Gas Corporation | Hardin | BP America 757 #1 | 10,500 | 19932887 |
| 533191Amendment | Jun 17, 2003 | Jun 17, 2003 | Walter Oil & Gas Corporation | Hardin | BP America 757 #1 | 10,517 | 19932887 |
| 530624Amendment | Apr 22, 2003 | Apr 22, 2003 | Gryphon Exploration Company | Matgrda IS-SB | State Tract 806-S #1 | 12,500 | 60330265 |
| 527967 | Feb 3, 2003 | Feb 3, 2003 | Walter Oil & Gas Corporation | Aransas | Grant "A" #1 | 11,401 | 00730848 |
| 527966 | Feb 3, 2003 | Feb 3, 2003 | Walter Oil & Gas Corporation | Aransas | Gibson/Sien C #4 | 12,000 | 00730860 |
| 527966Amendment | Feb 3, 2003 | Feb 3, 2003 | Walter Oil & Gas Corporation | Aransas | Gibson-Sien "C" #4 | 11,766 | 00730860 |
| 526568 | Dec 20, 2002 | Dec 20, 2002 | Walter Oil & Gas Corporation | Galveston | Gartell #1 | 11,000 | 16731369 |
| 524179 | Sep 30, 2002 | Sep 30, 2002 | Walter Oil & Gas Corporation | Chambers | State Tract 119 #3 | 8,000 | 07132234 |
| 524178 | Sep 30, 2002 | Sep 30, 2002 | Walter Oil & Gas Corporation | Chambers | State Tract 119 #2 | 8,000 | 07132235 |
| 523603 | Sep 11, 2002 | Sep 11, 2002 | Walter Oil & Gas Corporation | Chambers | State Tract 119 #1 | 7,000 | 07132232 |
| 523603Amendment | Sep 11, 2002 | Sep 11, 2002 | Walter Oil & Gas Corporation | Chambers | State Tract 119 #1 | 6,451 | 07132232 |
| 522154 | Jul 24, 2002 | Jul 24, 2002 | Walter Oil & Gas Corporation | Liberty | Penn-Cat #1 | 12,000 | 29132442 |
| 522154Amendment | Jul 24, 2002 | Jul 24, 2002 | Walter Oil & Gas Corporation | Liberty | Penn-Cat #1 | 11,465 | 29132442 |
| 520794 | Jun 7, 2002 | Jun 7, 2002 | Walter Oil & Gas Corporation | Aransas | Grant "D" #6 | 12,500 | 00730859 |
| 520794Amendment | Jun 7, 2002 | Jun 7, 2002 | Walter Oil & Gas Corporation | Aransas | Grant "D" #6ST | 11,500 | 00730859 |
| 520129 | May 17, 2002 | May 17, 2002 | Walter Oil & Gas Corporation | Aransas | Gibson/Sien Unit "B" #3 | 12,000 | 00730858 |
| 520129Amendment | May 17, 2002 | May 17, 2002 | Walter Oil & Gas Corporation | Aransas | Gibson-Sien Unit "B" #3 | 12,500 | 00730858 |
| 519234 | Apr 18, 2002 | Apr 18, 2002 | Walter Oil & Gas Corporation | Aransas | Davis #1 | 11,400 | 00730851 |
| 519234Amendment | Apr 18, 2002 | Apr 18, 2002 | Walter Oil & Gas Corporation | Aransas | Davis #1 | 11,400 | 00730851 |
| 519233 | Apr 18, 2002 | Apr 18, 2002 | Walter Oil & Gas Corporation | Aransas | Grant "A" #5 | 12,000 | 00730857 |
| 519233Amendment | Apr 18, 2002 | Apr 18, 2002 | Walter Oil & Gas Corporation | Aransas | Grant "A" #5 | 12,000 | 00730857 |
| 518218 | Mar 11, 2002 | Mar 11, 2002 | Walter Oil & Gas Corporation | Aransas | Grant "A" #4 | 12,500 | 00730856 |
| 517626Amendment | Feb 14, 2002 | Feb 14, 2002 | Walter Oil & Gas Corporation | Aransas | State Tract 163 #1 | 9,500 | 00730854 |
| 517453Amendment | Feb 12, 2002 | Feb 12, 2002 | Walter Oil & Gas Corporation | Liberty | Smith-Bailey #1 | 11,650 | 29132430 |
| 517119 | Jan 25, 2002 | Jan 25, 2002 | Walter Oil & Gas Corporation | Aransas | Grant #2B | 11,193 | 00730849 |
| 516945 | Jan 18, 2002 | Jan 18, 2002 | Walter Oil & Gas Corporation | Aransas | Hildebrand #1 | 12,000 | 00730853 |
| 516945Amendment | Jan 18, 2002 | Jan 18, 2002 | Walter Oil & Gas Corporation | Aransas | Hildebrand #1 | 11,501 | 00730853 |
| 515898 | Dec 6, 2001 | Dec 6, 2001 | Walter Oil & Gas Corporation | Aransas | Grant #3A | 11,000 | 00730852 |
| 515898Amendment | Dec 6, 2001 | Dec 6, 2001 | Walter Oil & Gas Corporation | Aransas | Grant #3A | 9,980 | 00730852 |
| 515255 | Nov 9, 2001 | Nov 9, 2001 | Walter Oil & Gas Corporation | Aransas | Davis #1 | 12,000 | 00730851 |
| 515255Amendment | Nov 9, 2001 | Nov 9, 2001 | Walter Oil & Gas Corporation | Aransas | Davis #1 | 11,490 | 00730851 |
| 515254 | Nov 9, 2001 | Nov 9, 2001 | Walter Oil & Gas Corporation | Wharton | Forgason Division, Ltd. #1 | 7,100 | 48134139 |
| 510979 | Jul 2, 2001 | Jul 2, 2001 | Walter Oil & Gas Corporation | Brazos-LB | S.T. 341-L S/2 NE/4 #1U | 7,867 | 70430308 |
| 509928 | Jun 6, 2001 | Jun 6, 2001 | Walter Oil & Gas Corporation | Wharton | Forgason Division, Ltd. #1 | 8,100 | 48134139 |
| 508828 | May 10, 2001 | May 10, 2001 | Walter Oil & Gas Corporation | Wharton | Vastar-Duncan "E" #4 | 6,900 | 48134075 |
| 508314 | Apr 27, 2001 | Apr 27, 2001 | Walter Oil & Gas Corporation | Aransas | Grant "A" #1 | 11,962 | 00730848 |
| 508314Amendment | Apr 27, 2001 | Apr 27, 2001 | Walter Oil & Gas Corporation | Aransas | Grant "A" #1 | 11,401 | 00730848 |
| 505968 | Mar 1, 2001 | Mar 1, 2001 | Walter Oil & Gas Corporation | Aransas | Grant #2B | 15,000 | 00730849 |
| 504412Amendment | Jan 22, 2001 | Jan 22, 2001 | Walter Oil & Gas Corporation | Galveston-LB | S. T. 307-L S2 SE/4 #2 | 6,500 | 70630228 |
| 503377 | Dec 22, 2000 | Dec 22, 2000 | Walter Oil & Gas Corporation | Colorado | Kallina #1 | 6,000 | 08932099 |
| 502559 | Dec 1, 2000 | Dec 1, 2000 | Walter Oil & Gas Corporation | Aransas | Grant #1 | 12,800 | 00730848 |
| 502559Amendment | Dec 1, 2000 | Dec 1, 2000 | Walter Oil & Gas Corporation | Aransas | Grant #1 | 14,000 | 00730848 |
| 502559Amendment | Dec 1, 2000 | Dec 1, 2000 | Walter Oil & Gas Corporation | Aransas | Grant "A" #1 | 11,962 | 00730848 |
| 502558 | Dec 1, 2000 | Dec 1, 2000 | Walter Oil & Gas Corporation | Colorado | Lehrer "D" #4 | 14,000 | 08932268 |
| 502558Amendment | Dec 1, 2000 | Dec 1, 2000 | Walter Oil & Gas Corporation | Colorado | Lehrer "D" #4 | 15,000 | 08932268 |
| 502558Amendment | Dec 1, 2000 | Dec 1, 2000 | Walter Oil & Gas Corporation | Colorado | Lehrer "D" #4 | 16,000 | 08932268 |
| 501495 | Nov 1, 2000 | Nov 1, 2000 | Walter Oil & Gas Corporation | Colorado | Lehrer "A" #3 | 10,586 | 08932158 |
| 495126 | May 16, 2000 | May 16, 2000 | Walter Oil & Gas Corporation | Colorado | Lehrer "D" #2 | 13,500 | 08932124 |
| 495125 | May 16, 2000 | May 16, 2000 | Walter Oil & Gas Corporation | Colorado | Kallina #1 | 12,500 | 08932099 |
| 495125Amendment | May 16, 2000 | May 16, 2000 | Walter Oil & Gas Corporation | Colorado | Kallina #1 | 6,000 | 08932099 |
| 494072 | Apr 13, 2000 | Apr 13, 2000 | Walter Oil & Gas Corporation | Aransas | Gibson/Sien #2A | 12,500 | 00730846 |
| 488574 | Oct 15, 1999 | Oct 15, 1999 | Walter Oil & Gas Corporation | Aransas | Gibson/Sien Unit #1 | 12,500 | 00730844 |
| 488574Amendment | Oct 15, 1999 | Oct 15, 1999 | Walter Oil & Gas Corporation | Aransas | Gibson/Sien Unit #1 | 11,600 | 00730844 |
| 486982 | Aug 26, 1999 | Aug 26, 1999 | Walter Oil & Gas Corporation | Wharton | Forgason Division, Ltd. #1 | 8,600 | 48134139 |
| 486982Amendment | Aug 26, 1999 | Aug 26, 1999 | Walter Oil & Gas Corporation | Wharton | Forgason Division, Ltd. #1 | 8,325 | 48134139 |
| 485884 | Jul 15, 1999 | Jul 15, 1999 | Walter Oil & Gas Corporation | Colorado | Lehrer "A" #3 | 13,500 | 08932158 |
| 485568 | Jun 30, 1999 | Jun 30, 1999 | Walter Oil & Gas Corporation | Colorado | Shimek SWD #1 | 4,500 | 08932154 |
| 485567 | Jun 30, 1999 | Jun 30, 1999 | Walter Oil & Gas Corporation | Wharton | Northington #1 | 9,000 | 48134127 |
| 482964 | Feb 26, 1999 | Feb 26, 1999 | Walter Oil & Gas Corporation | Colorado | Lehrer "D" #2 | 14,000 | 08932124 |
| 481856 | Dec 31, 1998 | Dec 31, 1998 | Walter Oil & Gas Corporation | Colorado | Lehrer #1 | 12,800 | 08932113 |
| 480589 | Nov 2, 1998 | Nov 2, 1998 | Walter Oil & Gas Corporation | Colorado | Kallina #1 | 13,500 | 08932099 |
| 480235 | Oct 16, 1998 | Oct 16, 1998 | Walter Oil & Gas Corporation | Wharton | Vastar-Duncan "B" #6 | 8,000 | 48134086 |
| 480235Amendment | Oct 16, 1998 | Oct 16, 1998 | Walter Oil & Gas Corporation | Wharton | Vastar-Duncan "B" #6 | 7,190 | 48134086 |
| 480234 | Oct 16, 1998 | Oct 16, 1998 | Walter Oil & Gas Corporation | Wharton | Vastar-Duncan "D" #5 | 9,000 | 48134087 |
| 480234Amendment | Oct 16, 1998 | Oct 16, 1998 | Walter Oil & Gas Corporation | Wharton | Vastar-Duncan "D" #5 | 8,700 | 48134087 |
| 479656 | Sep 23, 1998 | Sep 23, 1998 | Walter Oil & Gas Corporation | Wharton | Vastar-Duncan "E" #4 | 8,000 | 48134075 |
| 479656Amendment | Sep 23, 1998 | Sep 23, 1998 | Walter Oil & Gas Corporation | Wharton | Vastar-Duncan "E" #4 | 8,000 | 48134075 |
| 479015 | Aug 28, 1998 | Aug 28, 1998 | Walter Oil & Gas Corporation | Orange | Hudson/Sonat Unit #1 | 10,500 | 36130759 |
| 478262 | Jul 24, 1998 | Jul 24, 1998 | Walter Oil & Gas Corporation | Orange | Vastar/Sutton Unit #1 | 9,200 | 36130758 |
| 477116 | Jun 5, 1998 | Jun 5, 1998 | Walter Oil & Gas Corporation | Wharton | Vastar-Duncan #3 | 9,000 | 48133986 |