| 680264 | Apr 15, 2009 | Apr 15, 2009 | Welder Exploration & Prod., Inc. | Bee | Davis, Nona Berry #62 | 4,900 | 02533485 |
| 677463 | Jan 28, 2009 | Jan 28, 2009 | Welder Exploration & Prod., Inc. | McMullen | Briscoe #1 | 6,000 | 31134125 |
| 672637 | Oct 21, 2008 | Oct 21, 2008 | Welder Exploration & Prod., Inc. | Karnes | Boyce, C.W. #3 | 3,900 | 25531474 |
| 672593 | Oct 21, 2008 | Oct 21, 2008 | Welder Exploration & Prod., Inc. | Bee | Cisco #3 | 3,900 | 02533231 |
| 671099 | Oct 11, 2008 | Oct 11, 2008 | Welder Exploration & Prod., Inc. | Karnes | Cisco #4 | 4,000 | 25531601 |
| 665955 | Jul 25, 2008 | Jul 25, 2008 | Welder Exploration & Prod., Inc. | Goliad | Cliff Fromme #2 | 12,000 | 17534103 |
| 665955Amendment | Jul 25, 2008 | Jul 25, 2008 | Welder Exploration & Prod., Inc. | Goliad | Cliff Fromme #2 | 12,000 | 17534103 |
| 665955Amendment | Jul 25, 2008 | Jul 25, 2008 | Welder Exploration & Prod., Inc. | Goliad | Cliff Fromme #2 | 12,000 | 17534103 |
| 660943 | Jun 28, 2008 | Jun 28, 2008 | Welder Exploration & Prod., Inc. | Goliad | Goliad Naval Air Station #1 | 3,600 | 17534099 |
| 661736 | May 30, 2008 | May 30, 2008 | Welder Exploration & Prod., Inc. | Bee | Davis, Nona Berry #64 | 5,000 | 02533583 |
| 661736Amendment | May 30, 2008 | May 30, 2008 | Welder Exploration & Prod., Inc. | Bee | Davis, Nona Berry #64 | 5,000 | 02533583 |
| 661733 | May 30, 2008 | May 30, 2008 | Welder Exploration & Prod., Inc. | Bee | Davis, Nona Berry #63 | 5,000 | 02533582 |
| 661733Amendment | May 30, 2008 | May 30, 2008 | Welder Exploration & Prod., Inc. | Bee | Davis, Nona Berry #63 | 5,000 | 02533582 |
| 654483 | Feb 8, 2008 | Feb 8, 2008 | Welder Exploration & Prod., Inc. | Goliad | Walston-Pettus A #3 | 14,000 | 17534063 |
| 654483Amendment | Feb 8, 2008 | Feb 8, 2008 | Welder Exploration & Prod., Inc. | Goliad | Walston-Pettus A #3 | 14,000 | 17534063 |
| 652012 | Jan 3, 2008 | Jan 3, 2008 | Welder Exploration & Prod., Inc. | Goliad | T.W. Pettus #1 | 4,000 | 17534054 |
| 652012Amendment | Jan 3, 2008 | Jan 3, 2008 | Welder Exploration & Prod., Inc. | Goliad | Pettus, T. W. #1 | 4,000 | 17534054 |
| 651570 | Jan 2, 2008 | Jan 2, 2008 | Welder Exploration & Prod., Inc. | Goliad | Cliff Fromme #1 | 12,000 | 17534053 |
| 651570Amendment | Jan 2, 2008 | Jan 2, 2008 | Welder Exploration & Prod., Inc. | Goliad | Cliff Fromme #1 | 12,000 | 17534053 |
| 648040 | Oct 22, 2007 | Oct 22, 2007 | Welder Exploration & Prod., Inc. | Goliad | Walston-Pettus #2 | 4,000 | 17534029 |
| 647833 | Oct 18, 2007 | Oct 18, 2007 | Welder Exploration & Prod., Inc. | Goliad | Walston-Pettus #1 | 12,500 | 17534028 |
| 647833Amendment | Oct 18, 2007 | Oct 18, 2007 | Welder Exploration & Prod., Inc. | Goliad | Walston-Pettus #1 | 10,700 | 17534028 |
| 642576 | Jul 27, 2007 | Jul 27, 2007 | Welder Exploration & Prod., Inc. | Goliad | Lemke #1 | 4,000 | 17534012 |
| 642576Amendment | Jul 27, 2007 | Jul 27, 2007 | Welder Exploration & Prod., Inc. | Goliad | Lemke #1 | 4,000 | 17534012 |
| 642576Amendment | Jul 27, 2007 | Jul 27, 2007 | Welder Exploration & Prod., Inc. | Goliad | Lemke #1 | 4,000 | 17534012 |
| 642565 | Jul 27, 2007 | Jul 27, 2007 | Welder Exploration & Prod., Inc. | Goliad | Castillo #1 | 4,000 | 17534011 |
| 642565Amendment | Jul 27, 2007 | Jul 27, 2007 | Welder Exploration & Prod., Inc. | Goliad | Castillo #1 | 4,000 | 17534011 |
| 642565Amendment | Jul 27, 2007 | Jul 27, 2007 | Welder Exploration & Prod., Inc. | Goliad | Castillo #1 | 4,000 | 17534011 |
| 642456 | Jul 24, 2007 | Jul 24, 2007 | Welder Exploration & Prod., Inc. | Bee | Lauren #1 | 5,000 | 02533512 |
| 641426 | Jul 9, 2007 | Jul 9, 2007 | Welder Exploration & Prod., Inc. | Bee | Edler, J. B. #35 | 5,000 | 02533507 |
| 641426Amendment | Jul 9, 2007 | Jul 9, 2007 | Welder Exploration & Prod., Inc. | Bee | Edler, J. B. #35 | 5,000 | 02533507 |
| 641417 | Jul 6, 2007 | Jul 6, 2007 | Welder Exploration & Prod., Inc. | Bee | Davis, Nona Berry #61 | 5,000 | 02533506 |
| 641417Amendment | Jul 6, 2007 | Jul 6, 2007 | Welder Exploration & Prod., Inc. | Bee | Davis, Nona Berry #61 | 5,000 | 02533506 |
| 641231 | Jul 3, 2007 | Jul 3, 2007 | Welder Exploration & Prod., Inc. | Bee | Edler, J. B. #37 | 5,000 | 02533503 |
| 641231Amendment | Jul 3, 2007 | Jul 3, 2007 | Welder Exploration & Prod., Inc. | Bee | Edler, J. B. #37 | 5,000 | 02533503 |
| 641226 | Jul 3, 2007 | Jul 3, 2007 | Welder Exploration & Prod., Inc. | Bee | Edler, J.B. #43 | 5,000 | 02533502 |
| 641226Amendment | Jul 3, 2007 | Jul 3, 2007 | Welder Exploration & Prod., Inc. | Bee | Edler, J.B. #43 | 5,000 | 02533502 |
| 641221 | Jul 3, 2007 | Jul 3, 2007 | Welder Exploration & Prod., Inc. | Bee | Edler, J.B. #26 | 5,000 | 02533501 |
| 639055 | May 30, 2007 | May 30, 2007 | Welder Exploration & Prod., Inc. | Bee | Edler, J. B. #28 | 5,000 | 02533487 |
| 639055Amendment | May 30, 2007 | May 30, 2007 | Welder Exploration & Prod., Inc. | Bee | Edler, J. B. #28 | 5,000 | 02533487 |
| 639009 | May 30, 2007 | May 30, 2007 | Welder Exploration & Prod., Inc. | Bee | Edler, J. B. #29 | 5,000 | 02533485 |
| 639009Amendment | May 30, 2007 | May 30, 2007 | Welder Exploration & Prod., Inc. | Bee | Davis, Nona Berry #62 | 5,000 | 02533485 |
| 639009Amendment | May 30, 2007 | May 30, 2007 | Welder Exploration & Prod., Inc. | Bee | Davis, Nona Berry #62 | 5,000 | 02533485 |
| 639000 | May 30, 2007 | May 30, 2007 | Welder Exploration & Prod., Inc. | Bee | Edler, J. B. #27 | 5,000 | 02533486 |
| 639000Amendment | May 30, 2007 | May 30, 2007 | Welder Exploration & Prod., Inc. | Bee | Nona Berry Davis #60 | 5,000 | 02533486 |
| 639000Amendment | May 30, 2007 | May 30, 2007 | Welder Exploration & Prod., Inc. | Bee | Nona Berry Davis #60 | 5,000 | 02533486 |
| 638991 | May 29, 2007 | May 29, 2007 | Welder Exploration & Prod., Inc. | Bee | Davis, Nona Berry #58 | 5,000 | 02533480 |
| 638991Amendment | May 29, 2007 | May 29, 2007 | Welder Exploration & Prod., Inc. | Bee | Davis, Nona Berry #58 | 5,000 | 02533480 |
| 638973 | May 29, 2007 | May 29, 2007 | Welder Exploration & Prod., Inc. | Bee | Davis, Nona Berry #59 | 5,000 | 02533478 |
| 633735 | Mar 20, 2007 | Mar 20, 2007 | Welder Exploration & Prod., Inc. | Bee | Davis, Nona Berry #47 | 3,809 | 02501889 |
| 632659 | Mar 2, 2007 | Mar 2, 2007 | Welder Exploration & Prod., Inc. | Bee | Davis, Nona Berry #28 | 3,828 | 02501876 |
| 626457 | Oct 2, 2006 | Oct 2, 2006 | Welder Exploration & Prod., Inc. | Bee | Kelly Gas Unit #1 | 10,600 | 02533428 |
| 623461 | Jul 31, 2006 | Jul 31, 2006 | Welder Exploration & Prod., Inc. | Bee | O'Brien Ranch #1C | 5,000 | 02533417 |
| 623457 | Jul 31, 2006 | Jul 31, 2006 | Welder Exploration & Prod., Inc. | Bee | O'Brien Ranch #1A | 5,000 | 02533418 |
| 623164 | Jul 25, 2006 | Jul 25, 2006 | Welder Exploration & Prod., Inc. | Bee | O'Brien Ranch #1B | 5,000 | 02533416 |
| 617524 | Apr 18, 2006 | Apr 18, 2006 | Welder Exploration & Prod., Inc. | Goliad | Moscatelli #1 | 3,500 | 17533648 |
| 617185 | Apr 11, 2006 | Apr 11, 2006 | Welder Exploration & Prod., Inc. | Bee | Breidenbach-Welder Unit #1 | 6,500 | 02533398 |
| 617182 | Apr 11, 2006 | Apr 11, 2006 | Welder Exploration & Prod., Inc. | Bee | Welder #1D | 6,500 | 02533397 |
| 617180 | Apr 11, 2006 | Apr 11, 2006 | Welder Exploration & Prod., Inc. | Bee | Breidenbach #1 | 6,500 | 02533396 |
| 615438 | Mar 15, 2006 | Mar 15, 2006 | Welder Exploration & Prod., Inc. | Bee | Wicker B #7 | 6,500 | 02533393 |
| 615437 | Mar 15, 2006 | Mar 15, 2006 | Welder Exploration & Prod., Inc. | Bee | Wicker A #6 | 6,500 | 02533392 |
| 615379 | Mar 7, 2006 | Mar 7, 2006 | Welder Exploration & Prod., Inc. | Goliad | Irby A #3 | 3,100 | 17533895 |
| 615379Amendment | Mar 7, 2006 | Mar 7, 2006 | Welder Exploration & Prod., Inc. | Goliad | Irby A #3 | 3,100 | 17533895 |
| 615378 | Mar 7, 2006 | Mar 7, 2006 | Welder Exploration & Prod., Inc. | Goliad | Irby A #1 | 2,200 | 17533894 |
| 614728 | Feb 27, 2006 | Feb 27, 2006 | Welder Exploration & Prod., Inc. | Bee | Welder #1F | 7,000 | 02533388 |
| 614804 | Feb 24, 2006 | Feb 24, 2006 | Welder Exploration & Prod., Inc. | Goliad | Irby #2 | 3,500 | 17533892 |
| 614804Amendment | Feb 24, 2006 | Feb 24, 2006 | Welder Exploration & Prod., Inc. | Goliad | Irby #2 | 3,500 | 17533892 |
| 613742 | Feb 7, 2006 | Feb 7, 2006 | Welder Exploration & Prod., Inc. | Goliad | Lucas #1R | 7,000 | 17533884 |
| 611262 | Dec 27, 2005 | Dec 27, 2005 | Welder Exploration & Prod., Inc. | Bee | Heard, C. E. #1A | 9,000 | 02533382 |
| 611059 | Dec 16, 2005 | Dec 16, 2005 | Welder Exploration & Prod., Inc. | Bee | Wicker #5 | 7,000 | 02533380 |
| 610190 | Dec 1, 2005 | Dec 1, 2005 | Welder Exploration & Prod., Inc. | Goliad | Lucas #1 | 7,000 | 17533858 |
| 610193 | Nov 30, 2005 | Nov 30, 2005 | Welder Exploration & Prod., Inc. | Goliad | Lucas #2 | 7,000 | 17533859 |
| 609115 | Nov 15, 2005 | Nov 15, 2005 | Welder Exploration & Prod., Inc. | Jim Wells | Smith, Allene #1A | 5,600 | 24932039 |
| 600988 | May 20, 2005 | May 20, 2005 | Welder Exploration & Prod., Inc. | Hidalgo | Woods Christian #1 | 10,500 | 21533348 |
| 600988Amendment | May 20, 2005 | May 20, 2005 | Welder Exploration & Prod., Inc. | Hidalgo | Woods Christian #1 | 10,500 | 21533348 |
| 600094 | May 3, 2005 | May 3, 2005 | Welder Exploration & Prod., Inc. | Bee | Traylor #1 | 7,000 | 02533335 |
| 560359 | Apr 18, 2005 | Apr 18, 2005 | Welder Exploration & Prod., Inc. | Goliad | Callaghan #1 | 11,000 | 17533761 |
| 560394 | Apr 13, 2005 | Apr 13, 2005 | Welder Exploration & Prod., Inc. | Hidalgo | Casas #1 | 9,000 | 21533336 |
| 560075 | Apr 8, 2005 | Apr 8, 2005 | Welder Exploration & Prod., Inc. | Hidalgo | Diaz #1 | 7,000 | 21533331 |
| 560076 | Apr 7, 2005 | Apr 7, 2005 | Welder Exploration & Prod., Inc. | Hidalgo | Dickerson #1 | 7,000 | 21533330 |
| 560076Amendment | Apr 7, 2005 | Apr 7, 2005 | Welder Exploration & Prod., Inc. | Hidalgo | Dickerson #1 | 8,000 | 21533330 |
| 554721 | Dec 13, 2004 | Dec 13, 2004 | Welder Exploration & Prod., Inc. | Goliad | Pettus #5 | 2,500 | 17533701 |
| 554226 | Dec 1, 2004 | Dec 1, 2004 | Welder Exploration & Prod., Inc. | Goliad | Gumm #1 | 3,500 | 17533696 |
| 553066 | Nov 3, 2004 | Nov 3, 2004 | Welder Exploration & Prod., Inc. | Goliad | Bluhm-Webel Gas Unit #1 | 3,500 | 17533681 |
| 552806 | Oct 26, 2004 | Oct 26, 2004 | Welder Exploration & Prod., Inc. | Goliad | Pettus #4 | 2,500 | 17533674 |
| 552345 | Oct 15, 2004 | Oct 15, 2004 | Welder Exploration & Prod., Inc. | Bee | Welder, R J #1C | 7,000 | 02533303 |
| 551898 | Oct 5, 2004 | Oct 5, 2004 | Welder Exploration & Prod., Inc. | Bee | Sugarek #1 | 4,600 | 02533299 |
| 549584 | Aug 20, 2004 | Aug 20, 2004 | Welder Exploration & Prod., Inc. | Bee | Welder, R. J. "A" #1A | 4,600 | 02533286 |
| 549583 | Aug 19, 2004 | Aug 19, 2004 | Welder Exploration & Prod., Inc. | Bee | Welder, R. J. "B" #2 B | 4,600 | 02533285 |
| 549231 | Aug 12, 2004 | Aug 12, 2004 | Welder Exploration & Prod., Inc. | Bee | Welder, R. J. #3B | 4,600 | 02533283 |
| 549031 | Aug 2, 2004 | Aug 2, 2004 | Welder Exploration & Prod., Inc. | Goliad | Moscatelli #1 | 3,500 | 17533648 |
| 549031Amendment | Aug 2, 2004 | Aug 2, 2004 | Welder Exploration & Prod., Inc. | Goliad | Moscatelli #1 | 3,500 | 17533648 |
| 548338 | Jul 16, 2004 | Jul 16, 2004 | Welder Exploration & Prod., Inc. | Goliad | Donoghue #2 | 3,500 | 17533644 |
| 548336 | Jul 16, 2004 | Jul 16, 2004 | Welder Exploration & Prod., Inc. | Goliad | Donoghue #1 | 3,500 | 17533643 |
| 548254 | Jul 15, 2004 | Jul 15, 2004 | Welder Exploration & Prod., Inc. | Bee | Peterson #1 | 4,600 | 02533279 |
| 545598 | May 12, 2004 | May 12, 2004 | Welder Exploration & Prod., Inc. | Hidalgo | Beaurline, A.W. #1 | 6,400 | 21533212 |
| 545597 | May 12, 2004 | May 12, 2004 | Welder Exploration & Prod., Inc. | Hidalgo | McAllen, A.A. "B" #B 2 | 6,400 | 21533211 |
| 545266 | May 4, 2004 | May 4, 2004 | Welder Exploration & Prod., Inc. | Hidalgo | McAllen, A.A. #1 | 6,600 | 21533207 |
| 545265 | May 4, 2004 | May 4, 2004 | Welder Exploration & Prod., Inc. | Hidalgo | McAllen, A.A. "B" #B 1 | 6,400 | 21533208 |
| 544700 | Apr 21, 2004 | Apr 21, 2004 | Welder Exploration & Prod., Inc. | Bee | Cisco #3 | 2,000 | 02533231 |