| 513885 | Oct 24, 2001 | Oct 24, 2001 | Abraxas Petroleum Corporation | Ward | JV-S 7211 Block 16 #2 | 11,600 | 47530614 |
| 512535 | Aug 15, 2001 | Aug 15, 2001 | Abraxas Petroleum Corporation | Pecos | Hudgins, P. T. 34 #1 | 13,850 | 37133853 |
| 512535Amendment | Aug 15, 2001 | Aug 15, 2001 | Abraxas Petroleum Corporation | Pecos | Hudgins, P. T. 34 #1H | 13,850 | 37133853 |
| 512141 | Aug 3, 2001 | Aug 3, 2001 | Abraxas Petroleum Corporation | Goliad | Pettus Heirs #2 | 2,600 | 17533043 |
| 511360 | Jul 17, 2001 | Jul 17, 2001 | Abraxas Petroleum Corporation | Goliad | Ramsey #1 | 10,500 | 17533019 |
| 508964 | May 17, 2001 | May 17, 2001 | Abraxas Petroleum Corporation | Goliad | Ramsey #1 | 10,525 | 17533019 |
| 508290 | Apr 30, 2001 | Apr 30, 2001 | Abraxas Petroleum Corporation | Goliad | Cunningham #1 | 5,200 | 17533348 |
| 508290Amendment | Apr 30, 2001 | Apr 30, 2001 | Abraxas Petroleum Corporation | Goliad | Cunningham #1 | 5,500 | 17533348 |
| 508289 | Apr 30, 2001 | Apr 30, 2001 | Abraxas Petroleum Corporation | Goliad | Pettus Heirs #4 | 5,200 | 17533347 |
| 508289Amendment | Apr 30, 2001 | Apr 30, 2001 | Abraxas Petroleum Corporation | Goliad | Pettus Heirs #4 | 5,500 | 17533347 |
| 507936 | Apr 20, 2001 | Apr 20, 2001 | Abraxas Petroleum Corporation | Goliad | Pettus Heirs #3 | 10,200 | 17533344 |
| 506057 | Mar 6, 2001 | Mar 6, 2001 | Abraxas Petroleum Corporation | Ward | JV-S 7211 Block 16 #2 | 11,600 | 47530614 |
| 506057Amendment | Mar 6, 2001 | Mar 6, 2001 | Abraxas Petroleum Corporation | Ward | JV-S 7211 Block 16 #2 | 11,600 | 47530614 |
| 503157 | Dec 20, 2000 | Dec 20, 2000 | Abraxas Petroleum Corporation | Goliad | Dimon Gas Unit #1 | 10,100 | 17533311 |
| 500824 | Oct 18, 2000 | Oct 18, 2000 | Abraxas Petroleum Corporation | Midland | Coleman, Beulah #15 | 9,000 | 32934412 |
| 500823 | Oct 18, 2000 | Oct 18, 2000 | Abraxas Petroleum Corporation | Midland | Coleman, Beulah #14 | 9,000 | 32934413 |
| 500822 | Oct 18, 2000 | Oct 18, 2000 | Abraxas Petroleum Corporation | Midland | Coleman, Beulah #13 | 9,000 | 32934411 |
| 500757 | Oct 16, 2000 | Oct 16, 2000 | Abraxas Petroleum Corporation | Midland | Coleman, Beulah #12 | 9,000 | 32934403 |
| 499016 | Aug 31, 2000 | Aug 31, 2000 | Abraxas Petroleum Corporation | Nueces | State Tract 309 #1 | 8,900 | 35506215 |
| 499016Amendment | Aug 31, 2000 | Aug 31, 2000 | Abraxas Petroleum Corporation | Nueces | State Tract 309 #1 | 8,900 | 35506215 |
| 498611 | Aug 29, 2000 | Aug 29, 2000 | Abraxas Petroleum Corporation | Martin | Fortune #3 | 9,200 | 31734293 |
| 498612 | Aug 23, 2000 | Aug 23, 2000 | Abraxas Petroleum Corporation | Martin | Fortune #4 | 9,200 | 31734291 |
| 498610 | Aug 23, 2000 | Aug 23, 2000 | Abraxas Petroleum Corporation | Martin | Mathews #2 | 9,200 | 31734292 |
| 498526 | Aug 17, 2000 | Aug 17, 2000 | Abraxas Petroleum Corporation | Martin | Fortune #2 | 9,200 | 31734290 |
| 498149 | Aug 8, 2000 | Aug 8, 2000 | Abraxas Petroleum Corporation | Pecos | May, John #3 | 5,600 | 37131817 |
| 497915 | Aug 2, 2000 | Aug 2, 2000 | Abraxas Petroleum Corporation | San Patricio | Welder, Minnie S. #50 | 5,000 | 40901684 |
| 496739 | Jul 5, 2000 | Jul 5, 2000 | Abraxas Petroleum Corporation | De Witt | Garrett Gas Unit #1HH | 17,300 | 12331164 |
| 496553 | Jun 30, 2000 | Jun 30, 2000 | Abraxas Petroleum Corporation | San Patricio | Welder, Minnie S. #16 | 9,200 | 40901653 |
| 496553Amendment | Jun 30, 2000 | Jun 30, 2000 | Abraxas Petroleum Corporation | San Patricio | Welder, M. S. #16 | 9,200 | 40901653 |
| 495829Amendment | Jun 7, 2000 | Jun 7, 2000 | Abraxas Petroleum Corporation | Hansford | Alexander #1 | 4,800 | 19531443 |
| 495614 | May 31, 2000 | May 31, 2000 | Abraxas Petroleum Corporation | De Witt | Wagner Gas Unit #1HH | 14,500 | 12330405 |
| 494853 | May 12, 2000 | May 12, 2000 | Abraxas Petroleum Corporation | Reeves | Poulter Gas Unit #1 | 14,560 | 38930463 |
| 486370 | Mar 24, 2000 | Mar 24, 2000 | Abraxas Petroleum Corporation | Ward | -32- Hall #5H | 12,300 | 47534603 |
| 493052 | Mar 13, 2000 | Mar 13, 2000 | Abraxas Petroleum Corporation | Nueces | State Tract 308 #2 | 8,700 | 35533085 |
| 493052Amendment | Mar 13, 2000 | Mar 13, 2000 | Abraxas Petroleum Corporation | Nueces | State Tract 308 #2 | 8,700 | 35533085 |
| 492120 | Feb 16, 2000 | Feb 16, 2000 | Abraxas Petroleum Corporation | Lavaca | Henson Gas Unit #2HH | 13,300 | 28532777 |
| 492120Amendment | Feb 16, 2000 | Feb 16, 2000 | Abraxas Petroleum Corporation | Lavaca | Henson Gas Unit #2HH | 18,300 | 28532777 |
| 491999 | Feb 14, 2000 | Feb 14, 2000 | Abraxas Petroleum Corporation | McMullen | Henry, E. M. #1HH | 12,500 | 31130577 |
| 491999Amendment | Feb 14, 2000 | Feb 14, 2000 | Abraxas Petroleum Corporation | McMullen | Henry, E. M. #1HH | 12,500 | 31130577 |
| 490995 | Jan 13, 2000 | Jan 13, 2000 | Abraxas Petroleum Corporation | Goliad | Pettus, W. W. Heirs #1 | 9,800 | 17533012 |
| 490995Amendment | Jan 13, 2000 | Jan 13, 2000 | Abraxas Petroleum Corporation | Goliad | Pettus, W. W. Heirs #1 | 11,480 | 17533012 |
| 490644 | Dec 29, 1999 | Dec 29, 1999 | Abraxas Petroleum Corporation | Ward | Howe Gas Unit No. 1-2 #102H | 14,200 | 47532013 |
| 490500 | Dec 21, 1999 | Dec 21, 1999 | Abraxas Petroleum Corporation | Ward | Caprito 83 #5 | 7,025 | 47534395 |
| 489921 | Dec 1, 1999 | Dec 1, 1999 | Abraxas Petroleum Corporation | San Patricio | Welder, M. S. #75 | 5,800 | 40932219 |
| 489921Amendment | Dec 1, 1999 | Dec 1, 1999 | Abraxas Petroleum Corporation | San Patricio | Welder, M. S. #75 | 7,200 | 40932219 |
| 489227 | Nov 8, 1999 | Nov 8, 1999 | Abraxas Petroleum Corporation | San Patricio | Welder, Minnie S. #70 | 9,300 | 40932114 |
| 489133 | Nov 8, 1999 | Nov 8, 1999 | Abraxas Petroleum Corporation | De Witt | Henson Gas Unit #1HH | 17,000 | 12300017 |
| 489167 | Nov 5, 1999 | Nov 5, 1999 | Abraxas Petroleum Corporation | Live Oak | House #1HAH | 13,330 | 29734311 |
| 487359 | Sep 10, 1999 | Sep 10, 1999 | Abraxas Petroleum Corporation | Ward | HNG Fee 57 #1 | 17,620 | 47530695 |
| 487000 | Aug 24, 1999 | Aug 24, 1999 | Abraxas Petroleum Corporation | De Witt | Steinmann #1HAH | 18,000 | 12331839 |
| 486465 | Aug 10, 1999 | Aug 10, 1999 | Abraxas Petroleum Corporation | San Patricio | Welder, Minnie S. #55 | 9,300 | 40901687 |
| 486359 | Aug 6, 1999 | Aug 6, 1999 | Abraxas Petroleum Corporation | San Patricio | Mayo Owens Gas Unit #4 | 10,990 | 40932430 |
| 485776 | Jul 13, 1999 | Jul 13, 1999 | Abraxas Petroleum Corporation | Ward | University 16-30 #2 | 7,200 | 47534599 |
| 485715 | Jul 12, 1999 | Jul 12, 1999 | Abraxas Petroleum Corporation | De Witt | Kuester #1H | 17,000 | 12331782 |
| 484813 | Jun 3, 1999 | Jun 3, 1999 | Abraxas Petroleum Corporation | San Patricio | Welder, Minnie S. #10 | 9,300 | 40901647 |
| 482628 | Feb 11, 1999 | Feb 11, 1999 | Abraxas Petroleum Corporation | Ward | University 16-30 #1 | 7,000 | 47534589 |
| 482628Amendment | Feb 11, 1999 | Feb 11, 1999 | Abraxas Petroleum Corporation | Ward | University 16-30 #1 | 7,000 | 47534589 |
| 482182 | Jan 22, 1999 | Jan 22, 1999 | Abraxas Petroleum Corporation | Hansford | Alexander #2 | 3,000 | 19531394 |
| 482182Amendment | Jan 22, 1999 | Jan 22, 1999 | Abraxas Petroleum Corporation | Hansford | Alexander #2 | 3,000 | 19531394 |
| 481642 | Dec 18, 1998 | Dec 18, 1998 | Abraxas Petroleum Corporation | Ward | Caprito 83 #1H | 16,632 | 47530225 |
| 481418 | Dec 10, 1998 | Dec 10, 1998 | Abraxas Petroleum Corporation | Live Oak | Schulz, H. J. #5HH | 13,400 | 29734346 |
| 481381 | Dec 10, 1998 | Dec 10, 1998 | Abraxas Petroleum Corporation | Ward | HNG Fee 57 #1 | 14,860 | 47530695 |
| 481381Amendment | Dec 10, 1998 | Dec 10, 1998 | Abraxas Petroleum Corporation | Ward | HNG Fee 57 #1 | 14,860 | 47530695 |
| 481160 | Dec 10, 1998 | Dec 10, 1998 | Abraxas Petroleum Corporation | Scurry | First National Bank #10 | 2,568 | 41532428 |
| 480931 | Nov 23, 1998 | Nov 23, 1998 | Abraxas Petroleum Corporation | San Patricio | Welder, M. S. #34 | 9,200 | 40901670 |
| 480931Amendment | Nov 23, 1998 | Nov 23, 1998 | Abraxas Petroleum Corporation | San Patricio | Welder, M. S. #34 | 9,200 | 40901670 |
| 480930 | Nov 23, 1998 | Nov 23, 1998 | Abraxas Petroleum Corporation | San Patricio | Welder, M. S. #19 | 9,200 | 40901656 |
| 480930Amendment | Nov 23, 1998 | Nov 23, 1998 | Abraxas Petroleum Corporation | San Patricio | Welder, M. S. #19 | 9,200 | 40901656 |
| 480770 | Nov 10, 1998 | Nov 10, 1998 | Abraxas Petroleum Corporation | Goliad | Pettus, W. W. Heirs #1L | 10,150 | 17533012 |
| 480770Amendment | Nov 10, 1998 | Nov 10, 1998 | Abraxas Petroleum Corporation | Goliad | Pettus, W. W. Heirs #1L | 10,150 | 17533012 |
| 480321 | Oct 20, 1998 | Oct 20, 1998 | Abraxas Petroleum Corporation | Live Oak | Schulz, H. #4HH | 13,400 | 29734342 |
| 480231 | Oct 19, 1998 | Oct 19, 1998 | Abraxas Petroleum Corporation | San Patricio | Fred B. Jones (Koonce) Unit #2 | 12,742 | 40930659 |
| 480141 | Oct 13, 1998 | Oct 13, 1998 | Abraxas Petroleum Corporation | De Witt | Flint, E. #1SW | 5,000 | 12331627 |
| 479267 | Sep 9, 1998 | Sep 9, 1998 | Abraxas Petroleum Corporation | Fisher | Noles #1 | 5,900 | 15131904 |
| 479093 | Sep 1, 1998 | Sep 1, 1998 | Abraxas Petroleum Corporation | Coke | Millican Reef Unit #6P | 6,600 | 08131766 |
| 479104 | Aug 31, 1998 | Aug 31, 1998 | Abraxas Petroleum Corporation | Fisher | Taylor #1 | 4,500 | 15131355 |
| 478628 | Aug 11, 1998 | Aug 11, 1998 | Abraxas Petroleum Corporation | De Witt | Steinmann #1HH | 18,000 | 12331839 |
| 478482 | Aug 5, 1998 | Aug 5, 1998 | Abraxas Petroleum Corporation | Ward | Hall, G. T. 32 #3 | 7,200 | 47534577 |
| 478443 | Aug 4, 1998 | Aug 4, 1998 | Abraxas Petroleum Corporation | Stonewall | Vahlenkamp #1 | 6,500 | 43332789 |
| 478340 | Jul 31, 1998 | Jul 31, 1998 | Abraxas Petroleum Corporation | San Patricio | Welder, Minnie S. #55 | 8,925 | 40901687 |
| 477694 | Jul 22, 1998 | Jul 22, 1998 | Abraxas Petroleum Corporation | San Patricio | Fred B. Jones Hatch GU #4U | 10,602 | 40932468 |
| 477694Amendment | Jul 22, 1998 | Jul 22, 1998 | Abraxas Petroleum Corporation | San Patricio | M-O-J Gas Unit #4 | 11,600 | 40932468 |
| 476863 | Jun 5, 1998 | Jun 5, 1998 | Abraxas Petroleum Corporation | Goliad | Ramsey #1 | 14,400 | 17533019 |
| 476805 | Jun 2, 1998 | Jun 2, 1998 | Abraxas Petroleum Corporation | Goliad | Ramsey #1SW | 4,000 | 17533094 |
| 476805Amendment | Jun 2, 1998 | Jun 2, 1998 | Abraxas Petroleum Corporation | Goliad | Abraxas Goliad SWD Facility #1 | 4,000 | 17533094 |
| 475867 | Apr 30, 1998 | Apr 30, 1998 | Abraxas Petroleum Corporation | Ward | Caprito 84 #1 | 7,500 | 47534564 |
| 475807 | Apr 29, 1998 | Apr 29, 1998 | Abraxas Petroleum Corporation | Live Oak | Abraxas Petroleum Corp. #1SW | 3,500 | 29734324 |
| 475560 | Apr 27, 1998 | Apr 27, 1998 | Abraxas Petroleum Corporation | San Patricio | Welder, Minnie S. #23 | 7,050 | 40901660 |
| 474787 | Mar 30, 1998 | Mar 30, 1998 | Abraxas Petroleum Corporation | San Patricio | Welder, M. S. #19 | 7,050 | 40901656 |
| 474766 | Mar 27, 1998 | Mar 27, 1998 | Abraxas Petroleum Corporation | San Patricio | Welder, Minnie S. #81 | 7,300 | 40932451 |
| 474530 | Mar 24, 1998 | Mar 24, 1998 | Abraxas Petroleum Corporation | San Patricio | Welder, Minnie S. #4U | 7,050 | 40901644 |
| 474351 | Mar 13, 1998 | Mar 13, 1998 | Abraxas Petroleum Corporation | Ward | Hall, G. T. 32 #2 | 7,200 | 47534557 |
| 474016 | Mar 6, 1998 | Mar 6, 1998 | Abraxas Petroleum Corporation | Ward | University 1702 #1 | 10,850 | 47533183 |
| 474041 | Mar 4, 1998 | Mar 4, 1998 | Abraxas Petroleum Corporation | De Witt | Flint #1HH | 14,300 | 12331826 |
| 473868 | Feb 27, 1998 | Feb 27, 1998 | Abraxas Petroleum Corporation | Live Oak | Schulz #3HH | 13,400 | 29734317 |
| 473464 | Feb 26, 1998 | Feb 26, 1998 | Abraxas Petroleum Corporation | San Patricio | Mayo Owens Gas Unit #1 | 11,500 | 40930216 |
| 473149 | Feb 13, 1998 | Feb 13, 1998 | Abraxas Petroleum Corporation | San Patricio | Welder, Minnie S. #13 | 9,000 | 40901650 |
| 472309 | Jan 16, 1998 | Jan 16, 1998 | Abraxas Petroleum Corporation | Live Oak | House #1HH | 13,500 | 29734311 |
| 471621 | Dec 23, 1997 | Dec 23, 1997 | Abraxas Petroleum Corporation | San Patricio | Jones, Fred B. #1AU | 13,500 | 40932459 |
| 471425 | Dec 18, 1997 | Dec 18, 1997 | Abraxas Petroleum Corporation | Goliad | Pettus, W.W. Heirs #1 | 14,400 | 17533012 |