| 840044 | May 15, 2018 | May 15, 2018 | Allegro Investments, Inc. | Jackson | Mauritz #1 | 6,600 | 23933915 |
| 798815 | Oct 23, 2014 | Oct 23, 2014 | Allegro Investments, Inc. | Jackson | Fishcamp #1 | 7,000 | 23933647 |
| 790724 | Aug 6, 2014 | Aug 6, 2014 | Allegro Investments, Inc. | Jackson | Parkway #1 | 9,500 | 23933633 |
| 790509 | Jul 30, 2014 | Jul 30, 2014 | Allegro Investments, Inc. | Haskell | Williams #1 | 6,000 | 20732772 |
| 771487 | Oct 21, 2013 | Oct 21, 2013 | Allegro Investments, Inc. | Haskell | Williams #2 | 6,500 | 20732797 |
| 764898 | Jul 8, 2013 | Jul 8, 2013 | Allegro Investments, Inc. | Haskell | Williams #1 | 6,000 | 20732772 |
| 748390 | Oct 15, 2012 | Oct 15, 2012 | Allegro Investments, Inc. | Haskell | Haynes #1 | 6,058 | 20731180 |
| 727630 | Nov 21, 2011 | Nov 21, 2011 | Allegro Investments, Inc. | Haskell | Haynes #3 | 4,923 | 20730817 |
| 727416 | Nov 18, 2011 | Nov 18, 2011 | Allegro Investments, Inc. | Haskell | Haynes #2 | 4,923 | 20730861 |
| 722352 | Aug 17, 2011 | Aug 17, 2011 | Allegro Investments, Inc. | Haskell | Haynes #1WI | 5,000 | 20703460 |
| 717011 | May 27, 2011 | May 27, 2011 | Allegro Investments, Inc. | Haskell | Jack Kittley #1 | 6,900 | 20732665 |
| 689136 | Dec 30, 2009 | Dec 30, 2009 | Allegro Investments, Inc. | Runnels | Behrens Unit #1 | 5,000 | 39935196 |
| 684050 | Sep 18, 2009 | Sep 18, 2009 | Allegro Investments, Inc. | Runnels | Patsy and Ray Dierschke #1 | 5,000 | 39935186 |
| 684459 | Sep 17, 2009 | Sep 17, 2009 | Allegro Investments, Inc. | Runnels | Bernice Gully #1 | 5,000 | 39935185 |
| 681153 | May 12, 2009 | May 12, 2009 | Allegro Investments, Inc. | Jackson | Mitchell #1 | 10,000 | 23933510 |
| 678835 | Feb 25, 2009 | Feb 25, 2009 | Allegro Investments, Inc. | Runnels | Gully, Frank #1 | 5,000 | 39935165 |
| 664081 | Jul 22, 2008 | Jul 22, 2008 | Allegro Investments, Inc. | Refugio | Longoria Unit #1 | 3,750 | 39132850 |
| 665282 | Jul 16, 2008 | Jul 16, 2008 | Allegro Investments, Inc. | Jackson | Stanger #1 | 10,000 | 23933473 |
| 654410 | Feb 9, 2008 | Feb 9, 2008 | Allegro Investments, Inc. | Fort Bend | Irving Unit #1 | 4,800 | 15732500 |
| 654410Amendment | Feb 9, 2008 | Feb 9, 2008 | Allegro Investments, Inc. | Fort Bend | Irving Unit #1 | 5,500 | 15732500 |
| 654405 | Feb 9, 2008 | Feb 9, 2008 | Allegro Investments, Inc. | Colorado | Wintermann #1 | 6,500 | 08932561 |
| 639255 | May 18, 2007 | May 18, 2007 | Allegro Investments, Inc. | Stonewall | Ray #1 | 4,000 | 43333362 |
| 638009 | May 7, 2007 | May 7, 2007 | Allegro Investments, Inc. | Jackson | Weaver-Dugger Unit #1A | 8,240 | 23933081 |
| 637016 | Apr 18, 2007 | Apr 18, 2007 | Allegro Investments, Inc. | Hale | Uncle Charley #1 | 8,000 | 18930493 |
| 633808 | Feb 23, 2007 | Feb 23, 2007 | Allegro Investments, Inc. | Matagorda | Dawdy Luck #1 | 12,000 | 32132163 |
| 631488 | Jan 9, 2007 | Jan 9, 2007 | Allegro Investments, Inc. | Jackson | Thunderbird #1R | 13,500 | 23933262 |
| 628863 | Nov 10, 2006 | Nov 10, 2006 | Allegro Investments, Inc. | Stonewall | Swenson "126" #1 | 5,800 | 43333350 |
| 628863Amendment | Nov 10, 2006 | Nov 10, 2006 | Allegro Investments, Inc. | Stonewall | Swenson "126" #1 | 6,300 | 43333350 |
| 628217 | Oct 30, 2006 | Oct 30, 2006 | Allegro Investments, Inc. | Haskell | Haynes #1 | 6,100 | 20731180 |
| 628217Amendment | Oct 30, 2006 | Oct 30, 2006 | Allegro Investments, Inc. | Haskell | Haynes #1 | 6,500 | 20731180 |
| 628212 | Oct 27, 2006 | Oct 27, 2006 | Allegro Investments, Inc. | Wharton | Hlavinka #1 | 3,664 | 48134610 |
| 628209 | Oct 27, 2006 | Oct 27, 2006 | Allegro Investments, Inc. | Wharton | Hlavinka #5 | 4,200 | 48134757 |
| 620547 | Jun 7, 2006 | Jun 7, 2006 | Allegro Investments, Inc. | Calhoun | Cole #1 | 8,985 | 05731614 |
| 619366 | May 16, 2006 | May 16, 2006 | Allegro Investments, Inc. | Matagorda | Cornelius/Markham #1 | 10,400 | 32132114 |
| 613094 | Jan 26, 2006 | Jan 26, 2006 | Allegro Investments, Inc. | Matagorda | Burke #1 | 11,500 | 32132093 |
| 613092 | Jan 26, 2006 | Jan 26, 2006 | Allegro Investments, Inc. | Matagorda | Hardy Horn #1 | 11,500 | 32132094 |
| 613092Amendment | Jan 26, 2006 | Jan 26, 2006 | Allegro Investments, Inc. | Matagorda | Hardy Horn #1 | 11,500 | 32132094 |
| 603173 | Jul 8, 2005 | Jul 8, 2005 | Allegro Investments, Inc. | Matagorda | Dawdy Estate & Trust #1 | 10,000 | 32132064 |
| 560221 | Apr 14, 2005 | Apr 14, 2005 | Allegro Investments, Inc. | Matagorda | West Buckeye #1 | 11,500 | 32132055 |
| 560425 | Apr 13, 2005 | Apr 13, 2005 | Allegro Investments, Inc. | Wharton | Hlavinka #5 | 4,200 | 48134757 |
| 560424 | Apr 13, 2005 | Apr 13, 2005 | Allegro Investments, Inc. | Wharton | Hlavinka #4 | 4,200 | 48134758 |
| 560424Amendment | Apr 13, 2005 | Apr 13, 2005 | Allegro Investments, Inc. | Wharton | Hlavinka #4 | 4,700 | 48134758 |
| 560220 | Apr 11, 2005 | Apr 11, 2005 | Allegro Investments, Inc. | Matagorda | NE Lario #1 | 11,500 | 32132054 |
| 553924 | Nov 19, 2004 | Nov 19, 2004 | Allegro Investments, Inc. | Wharton | Hlavinka #3 | 4,700 | 48134716 |
| 553506 | Nov 9, 2004 | Nov 9, 2004 | Allegro Investments, Inc. | Liberty | Star #1 | 6,700 | 29132572 |
| 551289 | Sep 22, 2004 | Sep 22, 2004 | Allegro Investments, Inc. | Victoria | Psencik #2 | 5,500 | 46933714 |
| 551241 | Sep 21, 2004 | Sep 21, 2004 | Allegro Investments, Inc. | Jackson | Pruitt #1 | 6,700 | 23933052 |
| 551240 | Sep 21, 2004 | Sep 21, 2004 | Allegro Investments, Inc. | Victoria | Charbula #1 | 5,990 | 46933732 |
| 545616 | Jun 8, 2004 | Jun 8, 2004 | Allegro Investments, Inc. | Montgomery | Harvest #1 | 6,200 | 33931004 |
| 545793 | May 21, 2004 | May 21, 2004 | Allegro Investments, Inc. | Stonewall | Flat Top - 142 #1 | 5,000 | 43333300 |
| 545794 | May 20, 2004 | May 20, 2004 | Allegro Investments, Inc. | Stonewall | Frog Mountain - 127 #1 | 5,000 | 43333301 |
| 545147 | Apr 30, 2004 | Apr 30, 2004 | Allegro Investments, Inc. | Jackson | Thunderbird #1 | 13,500 | 23933262 |
| 545147Amendment | Apr 30, 2004 | Apr 30, 2004 | Allegro Investments, Inc. | Jackson | Thunderbird #1 | 13,500 | 23933262 |
| 544686 | Apr 20, 2004 | Apr 20, 2004 | Allegro Investments, Inc. | Wharton | Hlavinka #2 | 5,000 | 48134639 |
| 543139 | Mar 12, 2004 | Mar 12, 2004 | Allegro Investments, Inc. | Jackson | Overpass #1 | 12,000 | 23933252 |
| 543139Amendment | Mar 12, 2004 | Mar 12, 2004 | Allegro Investments, Inc. | Jackson | Overpass #1 | 12,000 | 23933252 |
| 540941 | Jan 20, 2004 | Jan 20, 2004 | Allegro Investments, Inc. | Wharton | Hlavinka #1 | 5,000 | 48134610 |
| 540249 | Dec 31, 2003 | Dec 31, 2003 | Allegro Investments, Inc. | Matagorda | Cornelius #1 | 16,800 | 32131992 |
| 539548 | Dec 11, 2003 | Dec 11, 2003 | Allegro Investments, Inc. | Austin | Schaffner #1 | 5,000 | 01530849 |
| 537656 | Oct 20, 2003 | Oct 20, 2003 | Allegro Investments, Inc. | Matagorda | Buckeye Ranch #1 | 11,900 | 32131983 |
| 537655 | Oct 20, 2003 | Oct 20, 2003 | Allegro Investments, Inc. | Victoria | Becker #1 | 6,500 | 46933775 |
| 536906 | Sep 30, 2003 | Sep 30, 2003 | Allegro Investments, Inc. | Liberty | Fulcrum #1 | 8,200 | 29132496 |
| 536304 | Sep 11, 2003 | Sep 11, 2003 | Allegro Investments, Inc. | Calhoun | Cliburn #1 | 2,000 | 05731652 |
| 536304Amendment | Sep 11, 2003 | Sep 11, 2003 | Allegro Investments, Inc. | Calhoun | Cliburn "A" #1 | 2,000 | 05731652 |
| 536303 | Sep 11, 2003 | Sep 11, 2003 | Allegro Investments, Inc. | Calhoun | Cliburn #2 | 2,000 | 05731651 |
| 536303Amendment | Sep 11, 2003 | Sep 11, 2003 | Allegro Investments, Inc. | Calhoun | Cliburn "B" #2 | 2,000 | 05731651 |
| 535915 | Aug 29, 2003 | Aug 29, 2003 | Allegro Investments, Inc. | Victoria | Meek #2 | 5,500 | 46933761 |
| 534792 | Jul 30, 2003 | Jul 30, 2003 | Allegro Investments, Inc. | Liberty | Riverside General Hospital #1 | 14,200 | 29132488 |
| 534792Amendment | Jul 30, 2003 | Jul 30, 2003 | Allegro Investments, Inc. | Liberty | Riverside General Hospital #1 | 14,200 | 29132488 |
| 533890 | Jul 8, 2003 | Jul 8, 2003 | Allegro Investments, Inc. | Victoria | Charbula #1 | 7,000 | 46933732 |
| 533239 | Jun 17, 2003 | Jun 17, 2003 | Allegro Investments, Inc. | Victoria | Massey #2 | 6,300 | 46933724 |
| 532778 | Jun 6, 2003 | Jun 6, 2003 | Allegro Investments, Inc. | Victoria | Meek #1 | 5,500 | 46933722 |
| 532778Amendment | Jun 6, 2003 | Jun 6, 2003 | Allegro Investments, Inc. | Victoria | Meek #1 | 5,500 | 46933722 |
| 532548 | May 29, 2003 | May 29, 2003 | Allegro Investments, Inc. | Matagorda | Heffelfinger #1 | 11,500 | 32131968 |
| 531860 | May 13, 2003 | May 13, 2003 | Allegro Investments, Inc. | Victoria | Psencik #2 | 5,500 | 46933714 |
| 531860Amendment | May 13, 2003 | May 13, 2003 | Allegro Investments, Inc. | Victoria | Psencik #2 | 5,500 | 46933714 |
| 531859 | May 13, 2003 | May 13, 2003 | Allegro Investments, Inc. | Victoria | Psencik #1 | 5,500 | 46933713 |
| 531859Amendment | May 13, 2003 | May 13, 2003 | Allegro Investments, Inc. | Victoria | Psencik #1 | 5,500 | 46933713 |
| 531858 | May 13, 2003 | May 13, 2003 | Allegro Investments, Inc. | Liberty | East Ames G. U. #1 | 14,000 | 29132476 |
| 530000 | Mar 26, 2003 | Mar 26, 2003 | Allegro Investments, Inc. | Jackson | Isidy #1 | 7,000 | 23933210 |
| 528096 | Feb 5, 2003 | Feb 5, 2003 | Allegro Investments, Inc. | Jackson | McLeod Gas Unit #2 | 7,000 | 23933203 |
| 528095 | Feb 5, 2003 | Feb 5, 2003 | Allegro Investments, Inc. | Jackson | Duh #1 | 7,500 | 23933204 |
| 524574 | Oct 11, 2002 | Oct 11, 2002 | Allegro Investments, Inc. | Jackson | MMR #1 | 5,700 | 23933184 |
| 523901 | Sep 20, 2002 | Sep 20, 2002 | Allegro Investments, Inc. | Jones | Paint Creek #1 | 6,500 | 25334585 |
| 522823 | Aug 16, 2002 | Aug 16, 2002 | Allegro Investments, Inc. | Jackson | Big Twelve #1 | 12,800 | 23933180 |
| 522350 | Jul 30, 2002 | Jul 30, 2002 | Allegro Investments, Inc. | Jackson | Lakeside #1 | 5,700 | 23933133 |
| 521752 | Jul 10, 2002 | Jul 10, 2002 | Allegro Investments, Inc. | Jackson | Truck Stop #1 | 14,300 | 23933179 |
| 521092 | Jun 18, 2002 | Jun 18, 2002 | Allegro Investments, Inc. | Liberty | Murphy #1 | 14,500 | 29132438 |
| 519649 | May 3, 2002 | May 3, 2002 | Allegro Investments, Inc. | Liberty | Daniel, Gov. Bill 102 #1 | 12,000 | 29132436 |
| 518661 | Mar 28, 2002 | Mar 28, 2002 | Allegro Investments, Inc. | Jackson | Yaussi #1 | 7,500 | 23933173 |
| 517975 | Feb 28, 2002 | Feb 28, 2002 | Allegro Investments, Inc. | Wharton | Claire, Mary #1 | 4,200 | 48134435 |
| 517975Amendment | Feb 28, 2002 | Feb 28, 2002 | Allegro Investments, Inc. | Wharton | Claire, Mary #1 | 4,800 | 48134435 |
| 517012 | Jan 22, 2002 | Jan 22, 2002 | Allegro Investments, Inc. | Jackson | Long Beach #1 | 19,000 | 23933168 |
| 515995 | Dec 11, 2001 | Dec 11, 2001 | Allegro Investments, Inc. | Victoria | McCan, C. K. #11S | 4,400 | 46933405 |
| 514343 | Oct 10, 2001 | Oct 10, 2001 | Allegro Investments, Inc. | Jackson | Elk Hills #1 | 19,900 | 23933161 |
| 513561 | Sep 14, 2001 | Sep 14, 2001 | Allegro Investments, Inc. | Victoria | Kutchka #1 | 5,900 | 46933616 |
| 512619 | Aug 15, 2001 | Aug 15, 2001 | Allegro Investments, Inc. | Jackson | Farside #1 | 7,200 | 23933156 |
| 511445 | Jul 16, 2001 | Jul 16, 2001 | Allegro Investments, Inc. | Jackson | Signal Hill #1 | 19,000 | 23933152 |
| 510989 | Jul 3, 2001 | Jul 3, 2001 | Allegro Investments, Inc. | Jackson | Sample #3 | 5,800 | 23933146 |
| 510332 | Jun 15, 2001 | Jun 15, 2001 | Allegro Investments, Inc. | Jackson | Gateway #1 | 7,000 | 23933142 |