| 913467 | Feb 19, 2026 | Feb 19, 2026 | Mueller Exploration, Inc. | Live Oak | Husky-GKT C #1HH | 15,000 | 29736563 |
| 913466 | Feb 19, 2026 | Feb 19, 2026 | Mueller Exploration, Inc. | Live Oak | Husky-GKT B #1HH | 15,000 | 29736562 |
| 912483 | Jan 5, 2026 | Jan 5, 2026 | Mueller Exploration, Inc. | Starr | Alberto Alaniz #1R | 4,500 | 42734821 |
| 910462 | Sep 19, 2025 | Sep 19, 2025 | Mueller Exploration, Inc. | Live Oak | Hubert-Johnson #1HH | 15,000 | 29736537 |
| 910180 | Sep 2, 2025 | Sep 2, 2025 | Mueller Exploration, Inc. | Starr | Alberto Alaniz #1 | 4,500 | 42734820 |
| 910108 | Aug 29, 2025 | Aug 29, 2025 | Mueller Exploration, Inc. | Live Oak | Husky-GKT A #1HH | 15,000 | 29736536 |
| 895711 | Dec 11, 2023 | Dec 11, 2023 | Mueller Exploration, Inc. | Hardeman | Tommy Love #1 | 9,100 | 19731809 |
| 894052 | Sep 28, 2023 | Sep 28, 2023 | Mueller Exploration, Inc. | Live Oak | Hubert-Taggart B #2HH | 15,000 | 29736394 |
| 894051 | Sep 28, 2023 | Sep 28, 2023 | Mueller Exploration, Inc. | Live Oak | Hubert-Taggart A #1HH | 15,000 | 29736393 |
| 883511 | Sep 14, 2022 | Sep 14, 2022 | Mueller Exploration, Inc. | Frio | PH Green A #5HH | 15,000 | 16334311 |
| 883510 | Sep 14, 2022 | Sep 14, 2022 | Mueller Exploration, Inc. | Frio | PH Green A #4HH | 15,000 | 16334310 |
| 883509 | Sep 14, 2022 | Sep 14, 2022 | Mueller Exploration, Inc. | Frio | PH Green A #3HH | 15,000 | 16334309 |
| 883512 | Sep 13, 2022 | Sep 13, 2022 | Mueller Exploration, Inc. | Frio | PH Green A #6HH | 15,000 | 16334312 |
| 878229 | Mar 24, 2022 | Mar 24, 2022 | Mueller Exploration, Inc. | Frio | PH Green #2HH | 15,000 | 16334293 |
| 878228 | Mar 24, 2022 | Mar 24, 2022 | Mueller Exploration, Inc. | Frio | PH Green #1HH | 15,000 | 16334292 |
| 863972 | Jul 17, 2020 | Jul 17, 2020 | Mueller Exploration, Inc. | Galveston | Tidwell #3 | 13,300 | 16731535 |
| 862791 | Mar 19, 2020 | Mar 19, 2020 | Mueller Exploration, Inc. | Galveston | Tidwell #2 | 11,200 | 16731534 |
| 830609 | Sep 8, 2017 | Sep 8, 2017 | Mueller Exploration, Inc. | Live Oak | House, Jerry L. #1 | 8,000 | 29735895 |
| 825239 | Apr 25, 2017 | Apr 25, 2017 | Mueller Exploration, Inc. | Brazoria | Perry #2 | 7,000 | 03933296 |
| 818340 | Sep 16, 2016 | Sep 16, 2016 | Mueller Exploration, Inc. | Wharton | McCrohan GU #1 | 9,000 | 48135405 |
| 814324 | Mar 18, 2016 | Mar 18, 2016 | Mueller Exploration, Inc. | Galveston | Tidwell #1 | 13,400 | 16731528 |
| 814324Amendment | Mar 18, 2016 | Mar 18, 2016 | Mueller Exploration, Inc. | Galveston | Tidwell #1 | 12,100 | 16731528 |
| 808290 | Jul 22, 2015 | Jul 22, 2015 | Mueller Exploration, Inc. | Frio | Panther Hollow Unit 1 #1HH | 14,200 | 16333959 |
| 802790 | Jan 15, 2015 | Jan 15, 2015 | Mueller Exploration, Inc. | Brazoria | Ward #1 | 5,200 | 03933256 |
| 790525 | Jul 24, 2014 | Jul 24, 2014 | Mueller Exploration, Inc. | Wharton | Rivers et al GU #2 | 9,000 | 48135347 |
| 786261 | Jun 7, 2014 | Jun 7, 2014 | Mueller Exploration, Inc. | Galveston | Townes Family #1 | 13,500 | 16731518 |
| 786767 | May 28, 2014 | May 28, 2014 | Mueller Exploration, Inc. | Hardeman | Holcomb Ranch #1HH | 11,500 | 19731709 |
| 786767Amendment | May 28, 2014 | May 28, 2014 | Mueller Exploration, Inc. | Hardeman | Holcomb Ranch #1HH | 12,166 | 19731709 |
| 773868Amendment | Nov 25, 2013 | Nov 25, 2013 | Mueller Exploration, Inc. | Brazoria | Perry #1 | 5,200 | 03933189 |
| 773773 | Nov 22, 2013 | Nov 22, 2013 | Mueller Exploration, Inc. | Henderson | Grant #1 | 5,500 | 21331046 |
| 759316 | May 1, 2013 | May 1, 2013 | Mueller Exploration, Inc. | Wharton | Jones Creek Unit #1 | 11,500 | 48135292 |
| 759316Amendment | May 1, 2013 | May 1, 2013 | Mueller Exploration, Inc. | Wharton | Jones Creek Unit #1 | 11,500 | 48135292 |
| 759456 | Mar 28, 2013 | Mar 28, 2013 | Mueller Exploration, Inc. | Anderson | Fender #1 | 1,650 | 00132725 |
| 743445 | Jul 2, 2012 | Jul 2, 2012 | Mueller Exploration, Inc. | Wharton | Rivers, et al Gas Unit #1 | 11,300 | 48135255 |
| 743445Amendment | Jul 2, 2012 | Jul 2, 2012 | Mueller Exploration, Inc. | Wharton | Rivers, et al Gas Unit #1 | 11,500 | 48135255 |
| 741807 | Jun 21, 2012 | Jun 21, 2012 | Mueller Exploration, Inc. | Cherokee | Stratton #1 | 5,500 | 07331486 |
| 741807Amendment | Jun 21, 2012 | Jun 21, 2012 | Mueller Exploration, Inc. | Cherokee | Stratton #1 | 7,000 | 07331486 |
| 741806 | Jun 21, 2012 | Jun 21, 2012 | Mueller Exploration, Inc. | Cherokee | Graham #1 | 5,300 | 07331485 |
| 740592 | May 25, 2012 | May 25, 2012 | Mueller Exploration, Inc. | Anderson | Bullin #1 | 5,950 | 00132711 |
| 740592Amendment | May 25, 2012 | May 25, 2012 | Mueller Exploration, Inc. | Anderson | Bullin #1 | 7,500 | 00132711 |
| 739157 | May 8, 2012 | May 8, 2012 | Mueller Exploration, Inc. | Anderson | Victor #1 | 5,500 | 00132710 |
| 739157Amendment | May 8, 2012 | May 8, 2012 | Mueller Exploration, Inc. | Anderson | Victor #1 | 5,500 | 00132710 |
| 739153 | May 8, 2012 | May 8, 2012 | Mueller Exploration, Inc. | Cherokee | Lake City #1 | 5,500 | 07331482 |
| 738665 | May 2, 2012 | May 2, 2012 | Mueller Exploration, Inc. | Cherokee | Portland #1 | 5,500 | 07331481 |
| 738416 | Apr 28, 2012 | Apr 28, 2012 | Mueller Exploration, Inc. | Calhoun | John Hubbard #1 | 9,000 | 05731783 |
| 737804 | Apr 27, 2012 | Apr 27, 2012 | Mueller Exploration, Inc. | Cherokee | Richard #1 | 5,500 | 07331480 |
| 730644 | Jan 25, 2012 | Jan 25, 2012 | Mueller Exploration, Inc. | Galveston | 517 Bayou Unit #1 | 9,800 | 16731495 |
| 724990 | Oct 10, 2011 | Oct 10, 2011 | Mueller Exploration, Inc. | Hardin | Martin et Al #1 | 9,000 | 19933333 |
| 721442 | Aug 5, 2011 | Aug 5, 2011 | Mueller Exploration, Inc. | Hardin | BP America Production Co. #1 | 11,100 | 19933315 |
| 699617 | Oct 6, 2010 | Oct 6, 2010 | Mueller Exploration, Inc. | Duval | Saenz A #1 | 6,200 | 13139163 |
| 685784 | Oct 12, 2009 | Oct 12, 2009 | Mueller Exploration, Inc. | Duval | Saenz A #2 | 6,200 | 13139182 |
| 685784Amendment | Oct 12, 2009 | Oct 12, 2009 | Mueller Exploration, Inc. | Duval | Saenz A #2 | 6,200 | 13139182 |
| 681026 | May 15, 2009 | May 15, 2009 | Mueller Exploration, Inc. | Duval | Saenz "A" #1 | 6,200 | 13139163 |
| 666635 | Aug 12, 2008 | Aug 12, 2008 | Mueller Exploration, Inc. | Wharton | Ammann Heirs Unit #1 | 12,500 | 48135020 |
| 656412 | Apr 8, 2008 | Apr 8, 2008 | Mueller Exploration, Inc. | Hardin | BP America A-1 #1 | 3,100 | 19933134 |
| 558334 | Mar 16, 2005 | Mar 16, 2005 | Mueller Exploration, Inc. | Lavaca | Kuester #1 | 5,400 | 28533133 |
| 553160 | Nov 9, 2004 | Nov 9, 2004 | Mueller Exploration, Inc. | Wharton | Putnam-Lange #1 | 9,990 | 48134710 |
| 548504 | Jul 22, 2004 | Jul 22, 2004 | Mueller Exploration, Inc. | Knox | Beavers #1 | 6,550 | 27532186 |
| 548504Amendment | Jul 22, 2004 | Jul 22, 2004 | Mueller Exploration, Inc. | Knox | Beavers #1 | 7,150 | 27532186 |
| 546725 | Jun 14, 2004 | Jun 14, 2004 | Mueller Exploration, Inc. | Wharton | B & M Farms #1 | 5,600 | 48134658 |
| 543247 | Mar 23, 2004 | Mar 23, 2004 | Mueller Exploration, Inc. | Wharton | Herrmann, P. J. #1 | 8,400 | 48134629 |
| 540107 | Jan 13, 2004 | Jan 13, 2004 | Mueller Exploration, Inc. | McCulloch | White, G. R. Trust #1 | 2,300 | 30731123 |
| 525820 | Nov 22, 2002 | Nov 22, 2002 | Mueller Exploration, Inc. | San Patricio | Sanderfer Gas Unit #1 | 5,700 | 40932722 |
| 524691 | Oct 16, 2002 | Oct 16, 2002 | Mueller Exploration, Inc. | San Patricio | Janysek Gas Unit #1 | 6,700 | 40932718 |
| 523340 | Sep 11, 2002 | Sep 11, 2002 | Mueller Exploration, Inc. | De Witt | Bialek #1 | 2,060 | 12331897 |
| 506717 | Jun 11, 2001 | Jun 11, 2001 | Mueller Exploration, Inc. | Lavaca | J. Losac Gas Unit #1 | 2,500 | 28532873 |
| 508992 | Jun 6, 2001 | Jun 6, 2001 | Mueller Exploration, Inc. | Lavaca | Baass Gas Unit #1 | 11,134 | 28500276 |
| 509216 | May 25, 2001 | May 25, 2001 | Mueller Exploration, Inc. | Lavaca | Pesek Gas Unit #1 | 3,100 | 28532893 |
| 507996 | May 14, 2001 | May 14, 2001 | Mueller Exploration, Inc. | Lavaca | Castellow, E. #2 | 3,100 | 28532889 |
| 507995 | May 14, 2001 | May 14, 2001 | Mueller Exploration, Inc. | Lavaca | Castellow, E. #1 | 3,100 | 28532888 |
| 508393 | May 10, 2001 | May 10, 2001 | Mueller Exploration, Inc. | Lavaca | Bludau Gas Unit #1 | 2,500 | 28532883 |
| 508393Amendment | May 10, 2001 | May 10, 2001 | Mueller Exploration, Inc. | Lavaca | Bludau Gas Unit #1 | 2,658 | 28532883 |
| 505832 | Mar 6, 2001 | Mar 6, 2001 | Mueller Exploration, Inc. | Lavaca | McReynolds #1R | 6,000 | 28532860 |
| 500832 | Oct 18, 2000 | Oct 18, 2000 | Mueller Exploration, Inc. | Lavaca | McReynolds #1 | 6,000 | 28532826 |
| 500831 | Oct 17, 2000 | Oct 17, 2000 | Mueller Exploration, Inc. | De Witt | Bialek #1 | 5,700 | 12331897 |
| 500831Amendment | Oct 17, 2000 | Oct 17, 2000 | Mueller Exploration, Inc. | De Witt | Bialek #1 | 2,658 | 12331897 |
| 498523 | Aug 22, 2000 | Aug 22, 2000 | Mueller Exploration, Inc. | Hidalgo | Oliphint #1 | 5,500 | 21532795 |
| 496886 | Jul 6, 2000 | Jul 6, 2000 | Mueller Exploration, Inc. | Goliad | Powell #1 | 2,150 | 17533265 |
| 494375 | Apr 27, 2000 | Apr 27, 2000 | Mueller Exploration, Inc. | Victoria | Kolle #1 | 11,500 | 46933476 |
| 493188 | Mar 29, 2000 | Mar 29, 2000 | Mueller Exploration, Inc. | Lavaca | D. Bohot Unit #3 | 5,150 | 28532782 |
| 493065 | Mar 29, 2000 | Mar 29, 2000 | Mueller Exploration, Inc. | Lavaca | R. Miller Gas Unit #2 | 1,800 | 28532778 |
| 491168 | Jan 24, 2000 | Jan 24, 2000 | Mueller Exploration, Inc. | De Witt | Gohlke Heirs B #1 | 4,400 | 12331877 |
| 489496 | Nov 16, 1999 | Nov 16, 1999 | Mueller Exploration, Inc. | Lavaca | Kocian #2 | 1,500 | 28532761 |
| 488374 | Oct 13, 1999 | Oct 13, 1999 | Mueller Exploration, Inc. | Lavaca | B. Skelton Gas Unit #1 | 2,700 | 28532749 |
| 488373 | Oct 13, 1999 | Oct 13, 1999 | Mueller Exploration, Inc. | Lavaca | C. Meyer Gas Unit #1 | 2,800 | 28532750 |
| 488098 | Oct 4, 1999 | Oct 4, 1999 | Mueller Exploration, Inc. | Lavaca | Miller, R. #1 | 2,500 | 28532746 |
| 485842 | Jul 30, 1999 | Jul 30, 1999 | Mueller Exploration, Inc. | Lavaca | M. Stanton Gas Unit #1 | 2,650 | 28532729 |
| 485841 | Jul 30, 1999 | Jul 30, 1999 | Mueller Exploration, Inc. | Lavaca | Bohot, D. #2 | 2,600 | 28532730 |
| 485840 | Jul 30, 1999 | Jul 30, 1999 | Mueller Exploration, Inc. | Lavaca | V. Kloppenburg Gas Unit #1 | 2,700 | 28532731 |
| 484307 | May 6, 1999 | May 6, 1999 | Mueller Exploration, Inc. | Lavaca | R. Kloppenburg Gas Unit #1 | 5,500 | 28532709 |
| 484306 | May 6, 1999 | May 6, 1999 | Mueller Exploration, Inc. | Lavaca | Kocian Gas Unit #1 | 5,500 | 28532708 |
| 484305 | May 6, 1999 | May 6, 1999 | Mueller Exploration, Inc. | Lavaca | Henderson, P. #1 | 2,350 | 28532707 |
| 482490 | Feb 15, 1999 | Feb 15, 1999 | Mueller Exploration, Inc. | Lavaca | D. Bohot Gas Unit #1 | 5,200 | 28532682 |
| 482489 | Feb 15, 1999 | Feb 15, 1999 | Mueller Exploration, Inc. | Lavaca | V. Muehr Gas Unit #1 | 5,100 | 28532681 |
| 478596 | Aug 7, 1998 | Aug 7, 1998 | Mueller Exploration, Inc. | Lavaca | Rother #1 | 4,500 | 28532640 |