| 671201 | Oct 1, 2008 | Oct 1, 2008 | Dewbre Petroleum Corporation | Hidalgo | Guerra Trust #1 | 9,000 | 21533878 |
| 669107Amendment | Sep 5, 2008 | Sep 5, 2008 | Dewbre Petroleum Corporation | McMullen | Edwards #1 | 6,000 | 31134094 |
| 666577 | Aug 29, 2008 | Aug 29, 2008 | Dewbre Petroleum Corporation | Karnes | R. Ruhmann Gas Unit 2-E #2H | 13,500 | 25531506 |
| 667908 | Aug 15, 2008 | Aug 15, 2008 | Dewbre Petroleum Corporation | Hidalgo | Guerra Brothers #2 | 16,750 | 21533856 |
| 667718 | Aug 13, 2008 | Aug 13, 2008 | Dewbre Petroleum Corporation | Hidalgo | Hidalgo-Pate Gas Unit #4 | 8,750 | 21533855 |
| 667571 | Aug 11, 2008 | Aug 11, 2008 | Dewbre Petroleum Corporation | Webb | Moos Heirs #6 | 5,000 | 47940333 |
| 667191 | Aug 7, 2008 | Aug 7, 2008 | Dewbre Petroleum Corporation | Lavaca | French Estate #2 | 15,000 | 28533507 |
| 664946 | Jul 14, 2008 | Jul 14, 2008 | Dewbre Petroleum Corporation | Nueces | Orchard #1 | 8,500 | 35533917 |
| 664691 | Jul 3, 2008 | Jul 3, 2008 | Dewbre Petroleum Corporation | Live Oak | Bednorz #2 | 4,600 | 29734681 |
| 660883 | May 15, 2008 | May 15, 2008 | Dewbre Petroleum Corporation | Live Oak | Johnson-Rooke-Scott Unit #1 | 4,600 | 29734786 |
| 659821 | Apr 29, 2008 | Apr 29, 2008 | Dewbre Petroleum Corporation | Hidalgo | Rochester #2 | 9,300 | 21533815 |
| 658144 | Apr 9, 2008 | Apr 9, 2008 | Dewbre Petroleum Corporation | Willacy | Cowden #1 | 10,000 | 48931199 |
| 658144Amendment | Apr 9, 2008 | Apr 9, 2008 | Dewbre Petroleum Corporation | Willacy | Cowden #1 | 10,000 | 48931199 |
| 657989 | Apr 7, 2008 | Apr 7, 2008 | Dewbre Petroleum Corporation | Kleberg | Yaklin #1 | 9,500 | 27332474 |
| 657110 | Mar 21, 2008 | Mar 21, 2008 | Dewbre Petroleum Corporation | Goliad | Lawson #1 | 5,300 | 17534077 |
| 652856 | Jan 16, 2008 | Jan 16, 2008 | Dewbre Petroleum Corporation | Willacy | Coleman Unit #1 | 11,750 | 48931194 |
| 651694 | Dec 21, 2007 | Dec 21, 2007 | Dewbre Petroleum Corporation | Kenedy | East, Robert #1 | 13,200 | 26131468 |
| 648790 | Nov 7, 2007 | Nov 7, 2007 | Dewbre Petroleum Corporation | Hidalgo | Ortega Unit #2 | 8,800 | 21533737 |
| 646241 | Oct 18, 2007 | Oct 18, 2007 | Dewbre Petroleum Corporation | Lavaca | Klimitchek #1 | 8,200 | 28533427 |
| 647145 | Oct 8, 2007 | Oct 8, 2007 | Dewbre Petroleum Corporation | Lavaca | French Estate #1 | 15,000 | 28533430 |
| 640521Amendment | Jul 9, 2007 | Jul 9, 2007 | Dewbre Petroleum Corporation | Webb | Moos Heirs #5 | 8,400 | 47939878 |
| 639036 | May 19, 2007 | May 19, 2007 | Dewbre Petroleum Corporation | Live Oak | Rapp #1 | 5,500 | 29734733 |
| 638136 | May 9, 2007 | May 9, 2007 | Dewbre Petroleum Corporation | Willacy | Thomas Unit #2 | 10,500 | 48931176 |
| 636178 | Apr 4, 2007 | Apr 4, 2007 | Dewbre Petroleum Corporation | Hidalgo | Alex Unit #1 | 12,000 | 21533626 |
| 636178Amendment | Apr 4, 2007 | Apr 4, 2007 | Dewbre Petroleum Corporation | Hidalgo | Alex Unit #1 | 12,000 | 21533626 |
| 635161 | Mar 21, 2007 | Mar 21, 2007 | Dewbre Petroleum Corporation | Hidalgo | River Farms #6 | 7,600 | 21533618 |
| 633937 | Feb 26, 2007 | Feb 26, 2007 | Dewbre Petroleum Corporation | Nueces | Ocker Unit #1 | 14,700 | 35533826 |
| 633546 | Feb 15, 2007 | Feb 15, 2007 | Dewbre Petroleum Corporation | Hidalgo | Casa Blanca 'D' #2 | 9,000 | 21533602 |
| 632566 | Jan 29, 2007 | Jan 29, 2007 | Dewbre Petroleum Corporation | Hidalgo | Hartley Gas Unit 'A' #1 | 10,650 | 21533585 |
| 632033 | Jan 19, 2007 | Jan 19, 2007 | Dewbre Petroleum Corporation | Hidalgo | J. R. Ewing Unit #1 | 9,200 | 21533579 |
| 631187 | Jan 3, 2007 | Jan 3, 2007 | Dewbre Petroleum Corporation | Nueces | Hedrick Unit #1 | 8,500 | 35533823 |
| 631187Amendment | Jan 3, 2007 | Jan 3, 2007 | Dewbre Petroleum Corporation | Nueces | Hedrick Unit #1 | 8,500 | 35533823 |
| 630830 | Dec 21, 2006 | Dec 21, 2006 | Dewbre Petroleum Corporation | Kleberg | Yaklin Unit #1 | 9,500 | 27332474 |
| 628738 | Nov 9, 2006 | Nov 9, 2006 | Dewbre Petroleum Corporation | Brazoria | Gayle #1 | 11,300 | 03932955 |
| 628738Amendment | Nov 9, 2006 | Nov 9, 2006 | Dewbre Petroleum Corporation | Brazoria | Gayle #1 | 11,300 | 03932955 |
| 628738Amendment | Nov 9, 2006 | Nov 9, 2006 | Dewbre Petroleum Corporation | Brazoria | Gayle #1 | 11,900 | 03932955 |
| 627034 | Oct 4, 2006 | Oct 4, 2006 | Dewbre Petroleum Corporation | Hidalgo | Ortega Unit #1 | 12,800 | 21533535 |
| 626113 | Sep 22, 2006 | Sep 22, 2006 | Dewbre Petroleum Corporation | Live Oak | Tullis, Henry #8R | 9,600 | 29733319 |
| 625474 | Sep 6, 2006 | Sep 6, 2006 | Dewbre Petroleum Corporation | Lavaca | Gordon Heirs #1 | 8,200 | 28533329 |
| 623882 | Aug 11, 2006 | Aug 11, 2006 | Dewbre Petroleum Corporation | Hidalgo | Valderas Gas Unit #4 | 12,000 | 21533512 |
| 623867 | Aug 11, 2006 | Aug 11, 2006 | Dewbre Petroleum Corporation | Bee | Griffith & Associates #1 | 5,000 | 02533421 |
| 622135 | Jul 13, 2006 | Jul 13, 2006 | Dewbre Petroleum Corporation | Lavaca | Jarrell #1 R | 13,500 | 28531343 |
| 621648 | Jul 3, 2006 | Jul 3, 2006 | Dewbre Petroleum Corporation | Bee | Goree #1 | 9,000 | 02533411 |
| 621578 | Jun 29, 2006 | Jun 29, 2006 | Dewbre Petroleum Corporation | Hidalgo | Harris Gas Unit #6 | 12,756 | 21533376 |
| 621356 | Jun 26, 2006 | Jun 26, 2006 | Dewbre Petroleum Corporation | Hidalgo | Rhodes Unit #1 | 12,800 | 21533497 |
| 618913 | May 15, 2006 | May 15, 2006 | Dewbre Petroleum Corporation | Hidalgo | Luna Gas Unit #2 | 8,800 | 21533483 |
| 617297 | Apr 14, 2006 | Apr 14, 2006 | Dewbre Petroleum Corporation | Hidalgo | Guerra Bros. #1 R | 16,400 | 21532217 |
| 617297Amendment | Apr 14, 2006 | Apr 14, 2006 | Dewbre Petroleum Corporation | Hidalgo | Guerra Bros. #1 R | 16,350 | 21532217 |
| 617082Amendment | Apr 6, 2006 | Apr 6, 2006 | Dewbre Petroleum Corporation | Hidalgo | Antonio Lopez Unit #1 | 11,875 | 21532798 |
| 616346 | Apr 3, 2006 | Apr 3, 2006 | Dewbre Petroleum Corporation | Hidalgo | Arcadio #3 | 9,100 | 21533461 |
| 616530 | Mar 29, 2006 | Mar 29, 2006 | Dewbre Petroleum Corporation | Willacy | Thomas Unit #1 | 12,300 | 48931141 |
| 615915 | Mar 20, 2006 | Mar 20, 2006 | Dewbre Petroleum Corporation | Wharton | Duffy, G. A. #12 | 5,679 | 48102418 |
| 615479 | Mar 15, 2006 | Mar 15, 2006 | Dewbre Petroleum Corporation | Willacy | Stone Westside #1 | 4,500 | 48931140 |
| 614071 | Feb 21, 2006 | Feb 21, 2006 | Dewbre Petroleum Corporation | Kleberg | Sexauer #2 | 10,600 | 27332448 |
| 611845 | Jan 9, 2006 | Jan 9, 2006 | Dewbre Petroleum Corporation | Kleberg | Johnson Trust Unit #1 | 10,600 | 27332445 |
| 611113 | Dec 19, 2005 | Dec 19, 2005 | Dewbre Petroleum Corporation | Hidalgo | Arcadio #2 | 9,100 | 21533416 |
| 609541 | Nov 17, 2005 | Nov 17, 2005 | Dewbre Petroleum Corporation | Hidalgo | Casa Blanca 'D' #1 | 9,000 | 21533404 |
| 609170 | Nov 9, 2005 | Nov 9, 2005 | Dewbre Petroleum Corporation | Willacy | Pinnell #1 | 9,600 | 48931130 |
| 607728 | Oct 13, 2005 | Oct 13, 2005 | Dewbre Petroleum Corporation | Kleberg | La Paloma Ranch #1 | 9,200 | 27332440 |
| 607262 | Oct 4, 2005 | Oct 4, 2005 | Dewbre Petroleum Corporation | Hidalgo | Luna Unit #1 | 8,800 | 21533384 |
| 607054 | Sep 28, 2005 | Sep 28, 2005 | Dewbre Petroleum Corporation | McMullen | Heitkamp #1 | 1,000 | 31133851 |
| 607037 | Sep 28, 2005 | Sep 28, 2005 | Dewbre Petroleum Corporation | Hidalgo | River Farms #4 | 7,624 | 21532828 |
| 606997 | Sep 28, 2005 | Sep 28, 2005 | Dewbre Petroleum Corporation | Wharton | Lehrer Sec. 3 #2 | 4,500 | 48134797 |
| 606575 | Sep 20, 2005 | Sep 20, 2005 | Dewbre Petroleum Corporation | Hidalgo | Casa Blanca 'C' #1 | 10,620 | 21533248 |
| 605727 | Sep 1, 2005 | Sep 1, 2005 | Dewbre Petroleum Corporation | Hidalgo | Harris Gas Unit #6 | 12,800 | 21533376 |
| 605585 | Aug 29, 2005 | Aug 29, 2005 | Dewbre Petroleum Corporation | Jim Wells | Hranicky #2 | 1,800 | 24932484 |
| 603871 | Jul 25, 2005 | Jul 25, 2005 | Dewbre Petroleum Corporation | Hidalgo | Rochester #1 | 9,300 | 21533367 |
| 603809 | Jul 25, 2005 | Jul 25, 2005 | Dewbre Petroleum Corporation | Hidalgo | Hackney Lake Gas Unit #3 | 7,200 | 21533366 |
| 603796 | Jul 22, 2005 | Jul 22, 2005 | Dewbre Petroleum Corporation | Hidalgo | Rochester #2 | 9,300 | 21533365 |
| 603288 | Jul 13, 2005 | Jul 13, 2005 | Dewbre Petroleum Corporation | Duval | Duval Co. Ranch Co. State L #46 | 1,700 | 13138820 |
| 603038 | Jul 11, 2005 | Jul 11, 2005 | Dewbre Petroleum Corporation | Hidalgo | Russell #1 | 13,000 | 21533359 |
| 603038Amendment | Jul 11, 2005 | Jul 11, 2005 | Dewbre Petroleum Corporation | Hidalgo | Russell #1 | 13,500 | 21533359 |
| 600817 | May 18, 2005 | May 18, 2005 | Dewbre Petroleum Corporation | Willacy | Stone Oxbow Unit #1 | 8,700 | 48931114 |
| 561203 | Apr 29, 2005 | Apr 29, 2005 | Dewbre Petroleum Corporation | Hidalgo | Wes-Mer Gas Unit #1 | 12,500 | 21533342 |
| 561203Amendment | Apr 29, 2005 | Apr 29, 2005 | Dewbre Petroleum Corporation | Hidalgo | De Los Santos Gas Unit #1 | 12,500 | 21533342 |
| 559048 | Mar 18, 2005 | Mar 18, 2005 | Dewbre Petroleum Corporation | Hidalgo | River Farms #5 | 6,300 | 21533319 |
| 558446 | Mar 11, 2005 | Mar 11, 2005 | Dewbre Petroleum Corporation | Hidalgo | Valderas Gas Unit #3 | 12,000 | 21533317 |
| 558138 | Feb 25, 2005 | Feb 25, 2005 | Dewbre Petroleum Corporation | Hidalgo | Guerra - SCH #1 | 6,300 | 21533313 |
| 557503 | Feb 10, 2005 | Feb 10, 2005 | Dewbre Petroleum Corporation | Kleberg | Flato #1 | 9,700 | 27332423 |
| 557463 | Feb 10, 2005 | Feb 10, 2005 | Dewbre Petroleum Corporation | Willacy | Stone-Magnolia #1 | 8,800 | 48931109 |
| 556276 | Jan 20, 2005 | Jan 20, 2005 | Dewbre Petroleum Corporation | Hidalgo | Arcadio #1 | 9,300 | 21533302 |
| 556276Amendment | Jan 20, 2005 | Jan 20, 2005 | Dewbre Petroleum Corporation | Hidalgo | Arcadio #1 | 9,300 | 21533302 |
| 554993 | Dec 20, 2004 | Dec 20, 2004 | Dewbre Petroleum Corporation | Karnes | R. Ruhmann Gas Unit 2-E #2H | 13,500 | 25531506 |
| 553396 | Nov 12, 2004 | Nov 12, 2004 | Dewbre Petroleum Corporation | Jim Wells | Todd Estate #1 | 2,000 | 24932470 |
| 552126 | Oct 12, 2004 | Oct 12, 2004 | Dewbre Petroleum Corporation | Jim Wells | Hranicky #1 | 2,300 | 24932462 |
| 551421 | Sep 29, 2004 | Sep 29, 2004 | Dewbre Petroleum Corporation | Live Oak | Henry Tullis #8R | 10,000 | 29733319 |
| 550079 | Aug 26, 2004 | Aug 26, 2004 | Dewbre Petroleum Corporation | Hidalgo | Casa Blanca 'C' #1 | 10,700 | 21533248 |
| 549677 | Aug 19, 2004 | Aug 19, 2004 | Dewbre Petroleum Corporation | Wharton | Turkey Creek Farms #1 | 4,500 | 48134685 |
| 549422 | Aug 11, 2004 | Aug 11, 2004 | Dewbre Petroleum Corporation | Kleberg | Schonefeld B #1 | 8,950 | 27300841 |
| 548574 | Jul 27, 2004 | Jul 27, 2004 | Dewbre Petroleum Corporation | Hidalgo | Forthuber #1 | 11,000 | 21533239 |
| 548574Amendment | Jul 27, 2004 | Jul 27, 2004 | Dewbre Petroleum Corporation | Hidalgo | Forthuber #1 | 11,700 | 21533239 |
| 548186 | Jul 14, 2004 | Jul 14, 2004 | Dewbre Petroleum Corporation | Hidalgo | Carl Evans #1 | 12,452 | 21501424 |
| 548184 | Jul 14, 2004 | Jul 14, 2004 | Dewbre Petroleum Corporation | Willacy | Stone-Enterprise #1 | 8,700 | 48931097 |
| 547629 | Jul 6, 2004 | Jul 6, 2004 | Dewbre Petroleum Corporation | Kleberg | Sexauer #1 | 11,000 | 27332416 |
| 547259 | Jun 24, 2004 | Jun 24, 2004 | Dewbre Petroleum Corporation | Wharton | G. A. Duffy #28 | 5,790 | 48132927 |
| 546509 | Jun 4, 2004 | Jun 4, 2004 | Dewbre Petroleum Corporation | Wharton | G. A. Duffy #26 | 5,850 | 48131633 |
| 543511 | Mar 22, 2004 | Mar 22, 2004 | Dewbre Petroleum Corporation | Jim Wells | Schroedter #1 | 1,400 | 24932453 |
| 543215 | Mar 15, 2004 | Mar 15, 2004 | Dewbre Petroleum Corporation | Nueces | R. E. Taylor NCT-1 #7R | 5,500 | 35533620 |
| 542477 | Feb 26, 2004 | Feb 26, 2004 | Dewbre Petroleum Corporation | Wilson | Fred H. Chandler #2 | 7,650 | 49332244 |
| 542069 | Feb 17, 2004 | Feb 17, 2004 | Dewbre Petroleum Corporation | Hidalgo | Casa Blanca 'B' #2 | 9,000 | 21533185 |