| 802128 | Dec 23, 2014 | Dec 23, 2014 | Maverick Energy Group, Inc. | Caldwell | Clark-Bower Oil Unit #5 | 2,000 | 05535095 |
| 788860 | Jul 8, 2014 | Jul 8, 2014 | Maverick Energy Group, Inc. | Frio | Crouch #6 | 6,000 | 16330129 |
| 757562 | Mar 6, 2013 | Mar 6, 2013 | Maverick Energy Group, Inc. | Frio | Crouch #12 | 4,000 | 16330125 |
| 757479 | Mar 5, 2013 | Mar 5, 2013 | Maverick Energy Group, Inc. | Frio | Crouch #11 | 4,000 | 16300546 |
| 757609 | Mar 1, 2013 | Mar 1, 2013 | Maverick Energy Group, Inc. | Medina | Mora #1 | 2,500 | 32533965 |
| 733403 | Sep 21, 2012 | Sep 21, 2012 | Maverick Energy Group, Inc. | Frio | Crouch #8 | 4,000 | 16300581 |
| 733406 | Feb 28, 2012 | Feb 28, 2012 | Maverick Energy Group, Inc. | Frio | Crouch #10 | 4,000 | 16300585 |
| 733398 | Feb 28, 2012 | Feb 28, 2012 | Maverick Energy Group, Inc. | Frio | Crouch #9 | 4,000 | 16300549 |
| 714712 | Apr 26, 2011 | Apr 26, 2011 | Maverick Energy Group, Inc. | Frio | Crouch #6 | 3,300 | 16330129 |
| 714712Amendment | Apr 26, 2011 | Apr 26, 2011 | Maverick Energy Group, Inc. | Frio | Crouch #6 | 6,000 | 16330129 |
| 714711 | Apr 26, 2011 | Apr 26, 2011 | Maverick Energy Group, Inc. | Frio | Crouch #5 | 3,300 | 16330128 |
| 713844 | Apr 13, 2011 | Apr 13, 2011 | Maverick Energy Group, Inc. | Frio | Crouch #4 | 3,200 | 16330132 |
| 712915 | Mar 30, 2011 | Mar 30, 2011 | Maverick Energy Group, Inc. | Frio | Crouch #3 | 3,200 | 16330131 |
| 706772 | Dec 15, 2010 | Dec 15, 2010 | Maverick Energy Group, Inc. | Frio | Crouch #2 | 4,000 | 16300541 |
| 704583 | Nov 3, 2010 | Nov 3, 2010 | Maverick Energy Group, Inc. | Frio | Crouch #1 | 4,000 | 16330130 |
| 698297 | Jul 5, 2010 | Jul 5, 2010 | Maverick Energy Group, Inc. | Frio | Jane Burns #229 | 4,000 | 16380259 |
| 695692 | May 13, 2010 | May 13, 2010 | Maverick Energy Group, Inc. | Frio | Jane Burns #231 | 4,000 | 16300993 |
| 678590 | Mar 24, 2009 | Mar 24, 2009 | Maverick Energy Group, Inc. | Frio | Jane Burns #34 | 3,990 | 16301741 |
| 678717 | Mar 2, 2009 | Mar 2, 2009 | Maverick Energy Group, Inc. | Frio | Jane Burns #45L | 3,990 | 16300330 |
| 678199 | Feb 11, 2009 | Feb 11, 2009 | Maverick Energy Group, Inc. | Frio | Jane Burns #53 | 3,990 | 16300373 |
| 678202 | Feb 5, 2009 | Feb 5, 2009 | Maverick Energy Group, Inc. | Frio | Thompson, Webb "B" #42 | 3,990 | 16300295 |
| 678201 | Feb 5, 2009 | Feb 5, 2009 | Maverick Energy Group, Inc. | Frio | Burns, Jane #54 | 3,990 | 16300367 |
| 677780 | Jan 28, 2009 | Jan 28, 2009 | Maverick Energy Group, Inc. | Frio | Webb Thompson 'B' #41 | 3,990 | 16300233 |
| 677773 | Jan 28, 2009 | Jan 28, 2009 | Maverick Energy Group, Inc. | Frio | Webb Thompson "B" #40 | 3,990 | 16300227 |
| 677770 | Jan 28, 2009 | Jan 28, 2009 | Maverick Energy Group, Inc. | Frio | Webb Thompson "B" #39 | 3,990 | 16301028 |
| 677769 | Jan 28, 2009 | Jan 28, 2009 | Maverick Energy Group, Inc. | Frio | Webb Thompson "B" #38 | 3,990 | 16300228 |
| 677763 | Jan 28, 2009 | Jan 28, 2009 | Maverick Energy Group, Inc. | Frio | Webb Thompson "B" #37 | 3,990 | 16300229 |
| 661377 | Sep 12, 2008 | Sep 12, 2008 | Maverick Energy Group, Inc. | Frio | Big Foot Olmos B Sand Unit #337I | 3,999 | 16300297 |
| 669632 | Sep 10, 2008 | Sep 10, 2008 | Maverick Energy Group, Inc. | Frio | Burns, Jane #304A | 3,990 | 16333214 |
| 661366 | Sep 9, 2008 | Sep 9, 2008 | Maverick Energy Group, Inc. | Frio | Jane Burns #205 | 3,999 | 16300991 |
| 661373 | May 28, 2008 | May 28, 2008 | Maverick Energy Group, Inc. | Frio | Big Foot Olmos B Sand Unit #206 | 3,999 | 16300332 |
| 658218 | Apr 11, 2008 | Apr 11, 2008 | Maverick Energy Group, Inc. | Frio | Big Foot Olmos B Sand Unit #271 | 3,999 | 16300337 |
| 658217 | Apr 10, 2008 | Apr 10, 2008 | Maverick Energy Group, Inc. | Frio | Big Foot Olmos B Sand Unit #250 | 3,999 | 16301740 |
| 658214 | Apr 10, 2008 | Apr 10, 2008 | Maverick Energy Group, Inc. | Frio | Big Foot Olmos B Sand Unit #232 | 3,999 | 16300331 |
| 658212 | Apr 10, 2008 | Apr 10, 2008 | Maverick Energy Group, Inc. | Frio | Big Foot Olmos B Sand Unit #204I | 3,999 | 16300334 |
| 658189 | Apr 10, 2008 | Apr 10, 2008 | Maverick Energy Group, Inc. | Frio | Big Foot Olmos B Sand Unit #217 | 3,999 | 16300992 |
| 658188 | Apr 10, 2008 | Apr 10, 2008 | Maverick Energy Group, Inc. | Frio | Big Foot Olmos B Sand Unit #218 | 3,999 | 16300366 |
| 658186 | Apr 10, 2008 | Apr 10, 2008 | Maverick Energy Group, Inc. | Frio | Big Foot Olmos B Sand Unit #252 | 3,999 | 16300084 |
| 658184 | Apr 10, 2008 | Apr 10, 2008 | Maverick Energy Group, Inc. | Frio | Big Foot Olmos B Sand Unit #231 | 3,999 | 16300993 |
| 655986 | Mar 4, 2008 | Mar 4, 2008 | Maverick Energy Group, Inc. | Frio | Big Foot Olmos B Sand Unit #256I | 3,999 | 16300348 |
| 655984 | Mar 4, 2008 | Mar 4, 2008 | Maverick Energy Group, Inc. | Frio | Big Foot Olmos B Sand Unit #254I | 3,999 | 16300351 |
| 655969 | Mar 4, 2008 | Mar 4, 2008 | Maverick Energy Group, Inc. | Frio | Big Foot Olmos B Sand Unit #221I | 3,999 | 16300995 |
| 655969Amendment | Mar 4, 2008 | Mar 4, 2008 | Maverick Energy Group, Inc. | Frio | Jane Burns A #221 | 3,999 | 16300995 |
| 655968 | Mar 4, 2008 | Mar 4, 2008 | Maverick Energy Group, Inc. | Frio | Big Foot Olmos B Sand Unit #236I | 3,999 | 16300357 |
| 655965 | Mar 4, 2008 | Mar 4, 2008 | Maverick Energy Group, Inc. | Frio | Big Foot Olmos B Sand Unit #220I | 3,999 | 16301000 |
| 655965Amendment | Mar 4, 2008 | Mar 4, 2008 | Maverick Energy Group, Inc. | Frio | Jane Burns A #220 | 3,999 | 16301000 |
| 655184 | Feb 21, 2008 | Feb 21, 2008 | Maverick Energy Group, Inc. | Frio | Big Foot Olmos B Sand Unit #263 | 3,999 | 16301002 |
| 654915 | Feb 20, 2008 | Feb 20, 2008 | Maverick Energy Group, Inc. | Frio | Big Foot Olmos B Sand Unit #265 | 3,999 | 16301007 |
| 654915Amendment | Feb 20, 2008 | Feb 20, 2008 | Maverick Energy Group, Inc. | Frio | Burns, Jane #265 | 3,999 | 16301007 |
| 645446 | Feb 20, 2008 | Feb 20, 2008 | Maverick Energy Group, Inc. | Frio | Burns, Jane A #263 | 3,900 | 16301002 |
| 654932 | Feb 19, 2008 | Feb 19, 2008 | Maverick Energy Group, Inc. | Frio | Big Foot Olmos B Sand Unit #255 | 3,999 | 16300349 |
| 654932Amendment | Feb 19, 2008 | Feb 19, 2008 | Maverick Energy Group, Inc. | Frio | Jane Burns A #255 | 3,999 | 16300349 |
| 652815 | Jan 16, 2008 | Jan 16, 2008 | Maverick Energy Group, Inc. | Frio | Big Foot Olmos B Sand Unit #170 | 3,999 | 16301727 |
| 652814 | Jan 16, 2008 | Jan 16, 2008 | Maverick Energy Group, Inc. | Frio | Big Foot Olmos B Sand Unit #169 | 3,999 | 16300964 |
| 652812 | Jan 16, 2008 | Jan 16, 2008 | Maverick Energy Group, Inc. | Frio | Big Foot Olmos B Sand Unit #168 | 3,999 | 16301732 |
| 652505 | Jan 14, 2008 | Jan 14, 2008 | Maverick Energy Group, Inc. | Frio | Big Foot Olmos B Sand Unit #189 | 3,999 | 16300431 |
| 652497 | Jan 14, 2008 | Jan 14, 2008 | Maverick Energy Group, Inc. | Frio | Big Foot Olmos B Sand Unit #181 | 3,999 | 16301725 |
| 652494 | Jan 14, 2008 | Jan 14, 2008 | Maverick Energy Group, Inc. | Frio | Big Foot Olmos B Sand Unit #179 | 3,999 | 16301728 |
| 652492 | Jan 14, 2008 | Jan 14, 2008 | Maverick Energy Group, Inc. | Frio | Big Foot Olmos B Sand Unit #177 | 3,999 | 16301733 |
| 652402 | Jan 10, 2008 | Jan 10, 2008 | Maverick Energy Group, Inc. | Frio | Big Foot Olmos B Sand Unit #178 | 3,999 | 16300956 |
| 651633 | Dec 21, 2007 | Dec 21, 2007 | Maverick Energy Group, Inc. | Frio | Big Foot Olmos B Sand Unit #193 | 3,999 | 16301731 |
| 651645 | Dec 20, 2007 | Dec 20, 2007 | Maverick Energy Group, Inc. | Frio | Big Foot Olmos B Sand Unit #180 | 3,999 | 16300966 |
| 651619 | Dec 20, 2007 | Dec 20, 2007 | Maverick Energy Group, Inc. | Frio | Big Foot Olmos B Sand Unit #194 | 3,999 | 16300967 |
| 651613 | Dec 20, 2007 | Dec 20, 2007 | Maverick Energy Group, Inc. | Frio | Big Foot Olmos B Sand Unit #195 | 3,999 | 16301729 |
| 651612 | Dec 20, 2007 | Dec 20, 2007 | Maverick Energy Group, Inc. | Frio | Big Foot Olmos B Sand Unit #196 | 3,999 | 16300968 |
| 651611 | Dec 20, 2007 | Dec 20, 2007 | Maverick Energy Group, Inc. | Frio | Big Foot Olmos B Sand Unit #197 | 3,999 | 16301760 |
| 651451 | Dec 19, 2007 | Dec 19, 2007 | Maverick Energy Group, Inc. | Frio | Big Foot Olmos B Sand Unit #184 | 3,999 | 16380228 |
| 651445 | Dec 19, 2007 | Dec 19, 2007 | Maverick Energy Group, Inc. | Frio | Big Foot Olmos B Sand Unit #183 | 3,999 | 16300987 |
| 651442 | Dec 19, 2007 | Dec 19, 2007 | Maverick Energy Group, Inc. | Frio | Big Foot Olmos B Sand Unit #182 | 3,999 | 16300986 |
| 651441 | Dec 19, 2007 | Dec 19, 2007 | Maverick Energy Group, Inc. | Frio | Big Foot Olmos B Sand Unit #222 | 3,999 | 16300996 |
| 651379 | Dec 18, 2007 | Dec 18, 2007 | Maverick Energy Group, Inc. | Frio | Big Foot Olmos B Sand Unit #192 | 3,999 | 16300448 |
| 651374 | Dec 18, 2007 | Dec 18, 2007 | Maverick Energy Group, Inc. | Frio | Big Foot Olmos B Sand Unit #191 | 3,999 | 16300447 |
| 651367 | Dec 18, 2007 | Dec 18, 2007 | Maverick Energy Group, Inc. | Frio | Big Foot Olmos B Sand Unit #190 | 3,999 | 16300453 |
| 651362 | Dec 18, 2007 | Dec 18, 2007 | Maverick Energy Group, Inc. | Frio | Big Foot Olmos B Sand Unit #188 | 3,999 | 16300432 |
| 651345 | Dec 18, 2007 | Dec 18, 2007 | Maverick Energy Group, Inc. | Frio | Big Foot Olmos B Sand Unit #187 | 3,999 | 16300433 |
| 651335 | Dec 18, 2007 | Dec 18, 2007 | Maverick Energy Group, Inc. | Frio | Big Foot Olmos B Sand Unit #201 | 3,999 | 16300444 |
| 651328 | Dec 18, 2007 | Dec 18, 2007 | Maverick Energy Group, Inc. | Frio | Big Foot Olmos B Sand Unit #202 | 3,999 | 16300445 |
| 651326 | Dec 18, 2007 | Dec 18, 2007 | Maverick Energy Group, Inc. | Frio | Big Foot Olmos B Sand Unit #203 | 3,999 | 16300446 |
| 651150 | Dec 18, 2007 | Dec 18, 2007 | Maverick Energy Group, Inc. | Frio | Big Foot Olmos B Sand Unit #200 | 3,999 | 16300443 |
| 650637 | Dec 10, 2007 | Dec 10, 2007 | Maverick Energy Group, Inc. | Frio | Big Foot Olmos B Sand Unit #199 A | 3,999 | 16333218 |
| 649881 | Nov 29, 2007 | Nov 29, 2007 | Maverick Energy Group, Inc. | Frio | Big Foot Olmos B Sand Unit #186 | 4,000 | 16380230 |
| 649879 | Nov 29, 2007 | Nov 29, 2007 | Maverick Energy Group, Inc. | Frio | Big Foot Olmos B Sand Unit #199 | 4,000 | 16300442 |
| 649878 | Nov 29, 2007 | Nov 29, 2007 | Maverick Energy Group, Inc. | Frio | Big Foot Olmos B Sand UNIT(03380 #185 | 4,000 | 16380229 |
| 645454 | Nov 7, 2007 | Nov 7, 2007 | Maverick Energy Group, Inc. | Frio | Burns, Jane A #264 | 3,900 | 16301014 |
| 648315 | Nov 2, 2007 | Nov 2, 2007 | Maverick Energy Group, Inc. | Frio | Saunders, Susie #4 | 3,900 | 16300275 |
| 648316 | Oct 29, 2007 | Oct 29, 2007 | Maverick Energy Group, Inc. | Frio | Saunders, Susie #3 | 3,900 | 16300274 |
| 647129 | Oct 11, 2007 | Oct 11, 2007 | Maverick Energy Group, Inc. | Frio | Burns, Jane A #242I | 3,900 | 16300997 |
| 647109 | Oct 11, 2007 | Oct 11, 2007 | Maverick Energy Group, Inc. | Frio | Burns, Jane #286A | 3,900 | 16333215 |
| 647131 | Oct 8, 2007 | Oct 8, 2007 | Maverick Energy Group, Inc. | Frio | Jane Burns A #243I | 3,900 | 16300998 |
| 647128 | Oct 8, 2007 | Oct 8, 2007 | Maverick Energy Group, Inc. | Frio | Jane Burns A #233I | 3,900 | 16301001 |
| 647126 | Oct 8, 2007 | Oct 8, 2007 | Maverick Energy Group, Inc. | Frio | Jane Burns A #208I | 3,900 | 16300346 |
| 647125 | Oct 8, 2007 | Oct 8, 2007 | Maverick Energy Group, Inc. | Frio | Jane Burns A #207I | 3,900 | 16300352 |
| 647124 | Oct 8, 2007 | Oct 8, 2007 | Maverick Energy Group, Inc. | Frio | Jane Burns A #223A | 3,900 | 16333169 |
| 647122 | Oct 8, 2007 | Oct 8, 2007 | Maverick Energy Group, Inc. | Frio | Jane Burns #298A | 3,900 | 16333201 |
| 647119 | Oct 8, 2007 | Oct 8, 2007 | Maverick Energy Group, Inc. | Frio | Jane Burns #297A | 3,900 | 16333217 |
| 647086 | Oct 8, 2007 | Oct 8, 2007 | Maverick Energy Group, Inc. | Frio | Jane Burns #285A | 3,900 | 16333170 |
| 646977 | Oct 4, 2007 | Oct 4, 2007 | Maverick Energy Group, Inc. | Frio | Burns, Jane A. #245A | 3,999 | 16332361 |
| 646976 | Oct 4, 2007 | Oct 4, 2007 | Maverick Energy Group, Inc. | Frio | Burns, Jane A. #224A | 3,999 | 16332314 |
| 646975 | Oct 4, 2007 | Oct 4, 2007 | Maverick Energy Group, Inc. | Frio | Burns, Jane A. #246A | 3,999 | 16332362 |
| 646652 | Sep 28, 2007 | Sep 28, 2007 | Maverick Energy Group, Inc. | Frio | Burns, Jane A #235 | 3,900 | 16300350 |