| 600213 | May 6, 2005 | May 6, 2005 | El Paso Production Oil & Gas Co. | Lavaca | Harvey Renger Gas Unit #2 | 20,000 | 28533153 |
| 600213Amendment | May 6, 2005 | May 6, 2005 | El Paso Production Oil & Gas Co. | Lavaca | Harvey Renger Gas Unit #2 | 20,000 | 28533153 |
| 561201 | Apr 28, 2005 | Apr 28, 2005 | El Paso Production Oil & Gas Co. | Lavaca | Edwards Gas Unit #5 | 14,710 | 28532995 |
| 561200 | Apr 28, 2005 | Apr 28, 2005 | El Paso Production Oil & Gas Co. | Lavaca | Edwards Gas Unit #3 | 16,500 | 28532936 |
| 560735 | Apr 26, 2005 | Apr 26, 2005 | El Paso Production Oil & Gas Co. | Starr | Guerra Gas Unit "A" #8 | 11,195 | 42732590 |
| 560735Amendment | Apr 26, 2005 | Apr 26, 2005 | El Paso Production Oil & Gas Co. | Starr | Guerra GU "A" #8 | 11,195 | 42732590 |
| 560902 | Apr 22, 2005 | Apr 22, 2005 | El Paso Production Oil & Gas Co. | Hidalgo | Hamman Ranch #60 | 17,010 | 21532846 |
| 560565 | Apr 20, 2005 | Apr 20, 2005 | El Paso Production Oil & Gas Co. | Starr | Guerra-USA Gas Unit "A" #10 | 12,550 | 42732647 |
| 552869Amendment | Apr 14, 2005 | Apr 14, 2005 | El Paso Production Oil & Gas Co. | Lavaca | Vesely GU 1 #2 | 20,000 | 28533110 |
| 559696 | Mar 30, 2005 | Mar 30, 2005 | El Paso Production Oil & Gas Co. | Hidalgo | Coates "A" #25 | 13,680 | 21532711 |
| 559625 | Mar 30, 2005 | Mar 30, 2005 | El Paso Production Oil & Gas Co. | Lavaca | Robertson #10 | 20,000 | 28533142 |
| 559062 | Mar 17, 2005 | Mar 17, 2005 | El Paso Production Oil & Gas Co. | Hidalgo | Garza Mineral #1 | 20,000 | 21533320 |
| 556559 | Jan 28, 2005 | Jan 28, 2005 | El Paso Production Oil & Gas Co. | Starr | Samano "H" #3 | 8,048 | 42732349 |
| 556612 | Jan 26, 2005 | Jan 26, 2005 | El Paso Production Oil & Gas Co. | Starr | Samano #22 | 15,000 | 42733375 |
| 556470 | Jan 21, 2005 | Jan 21, 2005 | El Paso Production Oil & Gas Co. | Hidalgo | Hamman Ranch #66 | 16,103 | 21533014 |
| 556148 | Jan 20, 2005 | Jan 20, 2005 | El Paso Production Oil & Gas Co. | Hidalgo | Johnson, F. I. #9 | 20,000 | 21533301 |
| 555868 | Jan 10, 2005 | Jan 10, 2005 | El Paso Production Oil & Gas Co. | Hidalgo | Jeffress, J. D. #9 | 12,563 | 21530292 |
| 555437 | Dec 29, 2004 | Dec 29, 2004 | El Paso Production Oil & Gas Co. | Lavaca | Edward Gas Unit #6 | 18,000 | 28533122 |
| 555215 | Dec 22, 2004 | Dec 22, 2004 | El Paso Production Oil & Gas Co. | De Witt | Matthew #2 | 17,000 | 12331864 |
| 554981 | Dec 20, 2004 | Dec 20, 2004 | El Paso Production Oil & Gas Co. | Hidalgo | Coastal Fee #4 | 16,000 | 21533288 |
| 554277 | Dec 6, 2004 | Dec 6, 2004 | El Paso Production Oil & Gas Co. | Starr | De Flores, M. S. #4 | 9,000 | 42733783 |
| 554214 | Dec 3, 2004 | Dec 3, 2004 | El Paso Production Oil & Gas Co. | Hidalgo | Turner, Evelyn #9 | 20,500 | 21533281 |
| 553711 | Nov 29, 2004 | Nov 29, 2004 | El Paso Production Oil & Gas Co. | Starr | Guerra GU "A" #15 | 13,050 | 42732694 |
| 553955 | Nov 23, 2004 | Nov 23, 2004 | El Paso Production Oil & Gas Co. | Kleberg | Smith Gas Unit One #7 | 15,000 | 27332419 |
| 553955Amendment | Nov 23, 2004 | Nov 23, 2004 | El Paso Production Oil & Gas Co. | Kleberg | Smith Gas Unit One #7 | 15,000 | 27332419 |
| 553715 | Nov 22, 2004 | Nov 22, 2004 | El Paso Production Oil & Gas Co. | Hidalgo | Hamman Ranch #54 | 17,062 | 21532776 |
| 553716 | Nov 18, 2004 | Nov 18, 2004 | El Paso Production Oil & Gas Co. | Hidalgo | Hamman Ranch #62 | 15,900 | 21532876 |
| 553714 | Nov 18, 2004 | Nov 18, 2004 | El Paso Production Oil & Gas Co. | Hidalgo | Salinas, M #3 | 12,500 | 21532179 |
| 553713 | Nov 18, 2004 | Nov 18, 2004 | El Paso Production Oil & Gas Co. | Starr | Guerra GU "C" #15 | 15,100 | 42733122 |
| 553610 | Nov 15, 2004 | Nov 15, 2004 | El Paso Production Oil & Gas Co. | Matagorda | Mad Island #2 | 20,000 | 32132028 |
| 553234 | Nov 5, 2004 | Nov 5, 2004 | El Paso Production Oil & Gas Co. | Starr | De Flores, M. S. #2 | 12,500 | 42733619 |
| 553131 | Nov 3, 2004 | Nov 3, 2004 | El Paso Production Oil & Gas Co. | Starr | USA 3 #17 | 13,500 | 42734392 |
| 553030 | Nov 3, 2004 | Nov 3, 2004 | El Paso Production Oil & Gas Co. | Kleberg | Bevan Bros. #2 | 13,600 | 27332393 |
| 552194 | Nov 2, 2004 | Nov 2, 2004 | El Paso Production Oil & Gas Co. | Kleberg | Smith Gas Unit 1 #8 | 16,000 | 27332418 |
| 552869 | Oct 29, 2004 | Oct 29, 2004 | El Paso Production Oil & Gas Co. | Lavaca | Vesely GU 1 #2 | 20,000 | 28533110 |
| 552869Amendment | Oct 29, 2004 | Oct 29, 2004 | El Paso Production Oil & Gas Co. | Lavaca | Vesely GU 1 #2 | 20,000 | 28533110 |
| 552814 | Oct 28, 2004 | Oct 28, 2004 | El Paso Production Oil & Gas Co. | Lavaca | Renger #1 | 20,000 | 28533109 |
| 552347 | Oct 15, 2004 | Oct 15, 2004 | El Paso Production Oil & Gas Co. | Lavaca | Robertson #5 | 19,000 | 28532962 |
| 552239 | Oct 13, 2004 | Oct 13, 2004 | El Paso Production Oil & Gas Co. | Starr | Ramirez USA GU "E" #8 | 14,500 | 42732678 |
| 551358 | Sep 24, 2004 | Sep 24, 2004 | El Paso Production Oil & Gas Co. | Starr | State Park #9 | 13,500 | 42733761 |
| 551327 | Sep 22, 2004 | Sep 22, 2004 | El Paso Production Oil & Gas Co. | Hidalgo | Leonard Gas Unit #2 | 17,000 | 21533258 |
| 551247 | Sep 21, 2004 | Sep 21, 2004 | El Paso Production Oil & Gas Co. | Hidalgo | Johnson, F. I. #66 | 19,000 | 21533106 |
| 551019 | Sep 15, 2004 | Sep 15, 2004 | El Paso Production Oil & Gas Co. | Hidalgo | Coastal Fee 75 #3 D | 6,450 | 21533256 |
| 551019Amendment | Sep 15, 2004 | Sep 15, 2004 | El Paso Production Oil & Gas Co. | Hidalgo | Coastal Fee 75 #3D | 6,450 | 21533256 |
| 551019Amendment | Sep 15, 2004 | Sep 15, 2004 | El Paso Production Oil & Gas Co. | Hidalgo | Coastal Fee 75 #3 D | 6,450 | 21533256 |
| 550623 | Sep 8, 2004 | Sep 8, 2004 | El Paso Production Oil & Gas Co. | Lavaca | Freeman #3 | 15,000 | 28533103 |
| 550272 | Sep 7, 2004 | Sep 7, 2004 | El Paso Production Oil & Gas Co. | Zapata | Loma Vieja #4 | 14,807 | 50533023 |
| 550251 | Aug 30, 2004 | Aug 30, 2004 | El Paso Production Oil & Gas Co. | Starr | Samano "H' #2 | 8,200 | 42732333 |
| 550197 | Aug 30, 2004 | Aug 30, 2004 | El Paso Production Oil & Gas Co. | Starr | Deflores, M. S. #1 | 11,000 | 42733610 |
| 550197Amendment | Aug 30, 2004 | Aug 30, 2004 | El Paso Production Oil & Gas Co. | Starr | Deflores, M. S. #1 | 10,891 | 42733610 |
| 550194 | Aug 30, 2004 | Aug 30, 2004 | El Paso Production Oil & Gas Co. | Hidalgo | Coates "A" #12 | 14,500 | 21532132 |
| 550168 | Aug 30, 2004 | Aug 30, 2004 | El Paso Production Oil & Gas Co. | Starr | Samano #37 | 10,000 | 42733539 |
| 549049Amendment | Aug 30, 2004 | Aug 30, 2004 | El Paso Production Oil & Gas Co. | Lavaca | Sibley Estate #1 | 20,000 | 28533096 |
| 549362 | Aug 11, 2004 | Aug 11, 2004 | El Paso Production Oil & Gas Co. | Lavaca | O. A. Lampley GU 1 #13 | 17,200 | 28532771 |
| 537546Amendment | Aug 11, 2004 | Aug 11, 2004 | El Paso Production Oil & Gas Co. | Hidalgo | Zamora, Estella #1 | 23,500 | 21533150 |
| 549253 | Aug 6, 2004 | Aug 6, 2004 | El Paso Production Oil & Gas Co. | Starr | Ramirez USA GU "E" #2 | 11,134 | 42732631 |
| 549049 | Aug 4, 2004 | Aug 4, 2004 | El Paso Production Oil & Gas Co. | Lavaca | Sibley #1 | 20,000 | 28533096 |
| 548925 | Aug 3, 2004 | Aug 3, 2004 | El Paso Production Oil & Gas Co. | Lavaca | W. B. Fitzhenry Heirs GU2 #1 | 20,000 | 28533095 |
| 548569 | Jul 23, 2004 | Jul 23, 2004 | El Paso Production Oil & Gas Co. | Starr | Samano 'C' #2 | 5,870 | 42732116 |
| 548531 | Jul 23, 2004 | Jul 23, 2004 | El Paso Production Oil & Gas Co. | Starr | Samano 'C' #1 | 5,830 | 42732070 |
| 548337 | Jul 22, 2004 | Jul 22, 2004 | El Paso Production Oil & Gas Co. | Lavaca | Freeman #2 | 15,000 | 28533092 |
| 548135 | Jul 14, 2004 | Jul 14, 2004 | El Paso Production Oil & Gas Co. | Matagorda | Mad Island Unit No. 1 #1 | 20,000 | 32132017 |
| 547617 | Jun 30, 2004 | Jun 30, 2004 | El Paso Production Oil & Gas Co. | Hidalgo | Hamman Ranch #56 | 17,500 | 21532809 |
| 547434 | Jun 29, 2004 | Jun 29, 2004 | El Paso Production Oil & Gas Co. | Lavaca | Robertson #9 | 20,000 | 28533087 |
| 547434Amendment | Jun 29, 2004 | Jun 29, 2004 | El Paso Production Oil & Gas Co. | Lavaca | Robertson #9 | 20,000 | 28533087 |
| 547502 | Jun 28, 2004 | Jun 28, 2004 | El Paso Production Oil & Gas Co. | Hidalgo | Winding Brook Corporation #6 | 20,000 | 21533230 |
| 547198 | Jun 23, 2004 | Jun 23, 2004 | El Paso Production Oil & Gas Co. | Hidalgo | Johnson, F. I. #11 | 20,000 | 21533225 |
| 547198Amendment | Jun 23, 2004 | Jun 23, 2004 | El Paso Production Oil & Gas Co. | Hidalgo | Johnson, F. I. #11 | 20,000 | 21533225 |
| 547129 | Jun 21, 2004 | Jun 21, 2004 | El Paso Production Oil & Gas Co. | Starr | Juana Salas #1 | 12,000 | 42733740 |
| 546093 | May 26, 2004 | May 26, 2004 | El Paso Production Oil & Gas Co. | Lavaca | Freeman #6 | 5,000 | 28533081 |
| 545589 | May 17, 2004 | May 17, 2004 | El Paso Production Oil & Gas Co. | Hidalgo | J.D. Jeffress #27 | 11,200 | 21532775 |
| 545589Amendment | May 17, 2004 | May 17, 2004 | El Paso Production Oil & Gas Co. | Hidalgo | J.D. Jeffress #27 | 11,200 | 21532775 |
| 543758 | Mar 29, 2004 | Mar 29, 2004 | El Paso Production Oil & Gas Co. | Starr | Flores, O. #1 | 11,500 | 42733623 |
| 543592 | Mar 24, 2004 | Mar 24, 2004 | El Paso Production Oil & Gas Co. | Hidalgo | J.D. Jeffress #26 | 12,386 | 21532773 |
| 543561 | Mar 23, 2004 | Mar 23, 2004 | El Paso Production Oil & Gas Co. | Lavaca | W. B. Fitzhenry Heirs GU1 #2 | 20,000 | 28533075 |
| 543020 | Mar 10, 2004 | Mar 10, 2004 | El Paso Production Oil & Gas Co. | Duval | Peters Estate Gas Unit "B" #7 | 15,815 | 13138545 |
| 542902 | Mar 8, 2004 | Mar 8, 2004 | El Paso Production Oil & Gas Co. | Lavaca | Vesely GU 1 #3 | 20,000 | 28533072 |
| 542814 | Mar 4, 2004 | Mar 4, 2004 | El Paso Production Oil & Gas Co. | Kleberg | May Field Unit #24 L | 9,600 | 27332096 |
| 542777 | Mar 3, 2004 | Mar 3, 2004 | El Paso Production Oil & Gas Co. | Starr | Samano #52 | 12,000 | 42733709 |
| 542409 | Feb 25, 2004 | Feb 25, 2004 | El Paso Production Oil & Gas Co. | Zapata | Loma Vieja #4 | 14,807 | 50533023 |
| 541192 | Feb 19, 2004 | Feb 19, 2004 | El Paso Production Oil & Gas Co. | Kleberg | Smith Gas Unit One #7 | 15,000 | 27332410 |
| 542080 | Feb 18, 2004 | Feb 18, 2004 | El Paso Production Oil & Gas Co. | Hidalgo | Peter Van Scherpe #2 | 9,550 | 21530192 |
| 542080Amendment | Feb 18, 2004 | Feb 18, 2004 | El Paso Production Oil & Gas Co. | Hidalgo | Van Scherpe, Peter #2 | 10,330 | 21530192 |
| 541930 | Feb 11, 2004 | Feb 11, 2004 | El Paso Production Oil & Gas Co. | Hidalgo | Winding Brook Corporation #5 | 18,500 | 21533182 |
| 541676 | Feb 5, 2004 | Feb 5, 2004 | El Paso Production Oil & Gas Co. | Starr | Richmond #12 | 10,000 | 42733704 |
| 541676Amendment | Feb 5, 2004 | Feb 5, 2004 | El Paso Production Oil & Gas Co. | Starr | Richmond #12 | 10,000 | 42733704 |
| 541434 | Feb 4, 2004 | Feb 4, 2004 | El Paso Production Oil & Gas Co. | Kleberg | J.M. Russel Gas Unit #1 | 9,550 | 27300859 |
| 541434Amendment | Feb 4, 2004 | Feb 4, 2004 | El Paso Production Oil & Gas Co. | Kleberg | J.M. Russell Gas Unit #1 | 9,550 | 27300859 |
| 541434Amendment | Feb 4, 2004 | Feb 4, 2004 | El Paso Production Oil & Gas Co. | Kleberg | J.M. Russell Gas Unit #1 | 9,550 | 27300859 |
| 541351 | Jan 29, 2004 | Jan 29, 2004 | El Paso Production Oil & Gas Co. | Starr | Guerra-USA Gas Unit "D" #1 | 13,219 | 42732661 |
| 541058 | Jan 22, 2004 | Jan 22, 2004 | El Paso Production Oil & Gas Co. | Lavaca | O. A. Lampley GU 1 #17 | 20,000 | 28533059 |
| 540775 | Jan 15, 2004 | Jan 15, 2004 | El Paso Production Oil & Gas Co. | Zapata | Palmyra #1 | 7,600 | 50533277 |
| 540775Amendment | Jan 15, 2004 | Jan 15, 2004 | El Paso Production Oil & Gas Co. | Zapata | Palmyra #1 | 7,785 | 50533277 |
| 540577 | Jan 12, 2004 | Jan 12, 2004 | El Paso Production Oil & Gas Co. | Hidalgo | Bell #3 | 15,800 | 21533174 |
| 540577Amendment | Jan 12, 2004 | Jan 12, 2004 | El Paso Production Oil & Gas Co. | Hidalgo | Bell #3 | 15,800 | 21533174 |
| 540257 | Dec 31, 2003 | Dec 31, 2003 | El Paso Production Oil & Gas Co. | Hidalgo | De Austin-Castillo Gas Unit #5 | 15,700 | 21533171 |
| 539891 | Dec 19, 2003 | Dec 19, 2003 | El Paso Production Oil & Gas Co. | Hidalgo | Hamman Heirs #3 | 16,600 | 21533166 |
| 539853 | Dec 18, 2003 | Dec 18, 2003 | El Paso Production Oil & Gas Co. | Starr | Samano #51 | 10,000 | 42733695 |
| 539846 | Dec 18, 2003 | Dec 18, 2003 | El Paso Production Oil & Gas Co. | Starr | Acevedo #1 | 12,000 | 42733694 |
| 539790 | Dec 17, 2003 | Dec 17, 2003 | El Paso Production Oil & Gas Co. | Starr | Samano #50 | 13,000 | 42733692 |