| 510003 | Jun 8, 2001 | Jun 8, 2001 | Texas Independent Explor., Inc. | Slick, T. B. A-535 #16542732510 | 10,500 |
| 510003Amendment | Jun 8, 2001 | Jun 8, 2001 | Texas Independent Explor., Inc. | Slick, T. B. A-535 #16542732510 | 6,725 |
| 510002 | Jun 8, 2001 | Jun 8, 2001 | Texas Independent Explor., Inc. | Coates 553 #942733379 | 9,000 |
| 509820 | Jun 5, 2001 | Jun 5, 2001 | Dewbre Petroleum Corporation | Don Cameron et al G. U. #7A42733378 | 10,500 |
| 509696 | Jun 1, 2001 | Jun 1, 2001 | Texas Independent Explor., Inc. | Yzaguirre 227 #442733377 | 9,000 |
| 509672 | May 31, 2001 | May 31, 2001 | Thorp Petroleum Corporation | Salinas, Fausto et Al #342733376 | 10,000 |
| 509672Amendment | May 31, 2001 | May 31, 2001 | Thorp Petroleum Corporation | Salinas, Fausto et Al #342733376 | 10,000 |
| 509669 | May 31, 2001 | May 31, 2001 | Coastal Oil & Gas Corporation | Samano #2242733375 | 15,000 |
| 509488 | May 29, 2001 | May 29, 2001 | Kerr-McGee Oil & Gas Onshore LLC | Garcia, I. Y. #3042733373 | 13,000 |
| 509486 | May 29, 2001 | May 29, 2001 | Kerr-McGee Oil & Gas Onshore LLC | Garcia, J. A. #442733374 | 13,000 |
| 509456 | May 25, 2001 | May 25, 2001 | Thorp Petroleum Corporation | Salinas, Fausto et Al #442733372 | 10,000 |
| 509231 | May 25, 2001 | May 25, 2001 | BNP Petroleum Corporation | CNG et al Unit #142733198 | 6,200 |
| 509345 | May 23, 2001 | May 23, 2001 | Texas Independent Explor., Inc. | Slick 541 #642733371 | 8,500 |
| 509344 | May 23, 2001 | May 23, 2001 | Texas Independent Explor., Inc. | Coates 553 #842733370 | 8,500 |
| 509237 | May 21, 2001 | May 21, 2001 | Kerr-McGee Oil & Gas Onshore LLC | Garcia, I. Y. #2842733368 | 13,000 |
| 509077 | May 16, 2001 | May 16, 2001 | Totalfinaelf E&P USA Inc | Slick, T. B. Estate #13142733367 | 15,000 |
| 508214 | May 16, 2001 | May 16, 2001 | Exxon Mobil Corporation | McGill Bros. #56142733357 | 8,000 |
| 505405 | May 16, 2001 | May 16, 2001 | Kerr-McGee Oil & Gas Onshore LLC | Garcia, I. Y. #2642733332 | 13,000 |
| 505404 | May 16, 2001 | May 16, 2001 | Kerr-McGee Oil & Gas Onshore LLC | Garcia, I. Y. #2542733331 | 13,000 |
| 508369 | May 15, 2001 | May 15, 2001 | Reh Energy, Inc. | Saenz, Vicente State "C" #842733362 | 4,850 |
| 508215 | May 15, 2001 | May 15, 2001 | Exxon Mobil Corporation | Juarez, Miguel #1042733358 | 8,000 |
| 508768 | May 10, 2001 | May 10, 2001 | Edge Petroleum Oper. Co., Inc. | Margo #342733366 | 5,800 |
| 508766 | May 10, 2001 | May 10, 2001 | Samedan Oil Corporation | State LMB Partnership #142733365 | 9,500 |
| 508766Amendment | May 10, 2001 | May 10, 2001 | Samedan Oil Corporation | State LMB Partnership #142733365 | 9,500 |
| 508697 | May 8, 2001 | May 8, 2001 | Conoco Inc. | Wehrle, E. F. 220 #942732507 | 6,350 |
| 508622 | May 7, 2001 | May 7, 2001 | Texas Independent Explor., Inc. | Slick 539 #2042733364 | 8,200 |
| 508621 | May 7, 2001 | May 7, 2001 | Texas Independent Explor., Inc. | Slick 539 #1942733363 | 8,200 |
| 508340 | Apr 30, 2001 | Apr 30, 2001 | Texas Independent Explor., Inc. | Coates 553 #1442733361 | 9,000 |
| 508339 | Apr 30, 2001 | Apr 30, 2001 | Kerr-McGee Oil & Gas Onshore LLC | Garcia, I. Y. #2942733360 | 13,000 |
| 508219 | Apr 26, 2001 | Apr 26, 2001 | Coastal Oil & Gas Corporation | Samano #2142733359 | 13,000 |
| 508219Amendment | Apr 26, 2001 | Apr 26, 2001 | Coastal Oil & Gas Corporation | Samano #2142733359 | 13,000 |
| 508142 | Apr 24, 2001 | Apr 24, 2001 | Kerr-McGee Oil & Gas Onshore LLC | Slick Estate -C- #1442733133 | 8,990 |
| 508049 | Apr 20, 2001 | Apr 20, 2001 | Totalfinaelf E&P USA Inc | Slick, T. B. Estate #10842732890 | 7,752 |
| 508048 | Apr 20, 2001 | Apr 20, 2001 | Totalfinaelf E&P USA Inc | Southwest Farm & Ranch-State #742732999 | 10,200 |
| 507943 | Apr 19, 2001 | Apr 19, 2001 | Conoco Inc. | Slick, T. B. Estate A-527 #18542733107 | 6,220 |
| 507852 | Apr 19, 2001 | Apr 19, 2001 | Texas Independent Explor., Inc. | Mayfair Labrisa #242732395 | 6,000 |
| 507767 | Apr 13, 2001 | Apr 13, 2001 | M. J. G., Inc. | Garcia "B" #842733356 | 10,500 |
| 507767Amendment | Apr 13, 2001 | Apr 13, 2001 | M. J. G., Inc. | Garcia "B" #842733356 | 11,000 |
| 507767Amendment | Apr 13, 2001 | Apr 13, 2001 | Peoples Energy Prod.-TX, L.P. | Garcia "B" #842733356 | 11,000 |
| 507748 | Apr 12, 2001 | Apr 12, 2001 | Totalfinaelf E&P USA Inc | Slick, T. B. Estate #13242733355 | 10,000 |
| 507748Amendment | Apr 12, 2001 | Apr 12, 2001 | Totalfinaelf E&P USA Inc | Slick, T. B. Estate #13242733355 | 15,000 |
| 507340 | Apr 11, 2001 | Apr 11, 2001 | Barrett Brothers Oil & Gas, Inc. | Echols #142733351 | 5,900 |
| 507651 | Apr 10, 2001 | Apr 10, 2001 | Exxon Mobil Corporation | McGill Bros. #56042733354 | 8,000 |
| 507640 | Apr 10, 2001 | Apr 10, 2001 | GMT Inc. | Neblett #442733353 | 10,200 |
| 507640Amendment | Apr 10, 2001 | Apr 10, 2001 | Exxon Mobil Corporation | Howell, J.J. #842733353 | 10,000 |
| 507594 | Apr 10, 2001 | Apr 10, 2001 | Kerr-McGee Oil & Gas Onshore LLC | A. G. Hermann Gas Unit #442732527 | 6,040 |
| 507502 | Apr 6, 2001 | Apr 6, 2001 | Coastal Oil & Gas Corporation | Luera State Gas Unit "A" #542733352 | 16,500 |
| 507502Amendment | Apr 6, 2001 | Apr 6, 2001 | Coastal Oil & Gas Corporation | Luera State Gas Unit "A" #542733352 | 16,500 |
| 507230 | Mar 30, 2001 | Mar 30, 2001 | Kerr-McGee Oil & Gas Onshore LLC | Hall, C. M. -A- #1242733348 | 9,500 |
| 507229 | Mar 30, 2001 | Mar 30, 2001 | Kerr-McGee Oil & Gas Onshore LLC | Speer, George H. #2342733349 | 9,300 |
| 507228 | Mar 30, 2001 | Mar 30, 2001 | Kerr-McGee Oil & Gas Onshore LLC | Slick Estate -C- #1742733350 | 10,000 |
| 507228Amendment | Mar 30, 2001 | Mar 30, 2001 | Kerr-McGee Oil & Gas Onshore LLC | Slick Estate -C- #1742733350 | 9,900 |
| 507228Amendment | Mar 30, 2001 | Mar 30, 2001 | Kerr-McGee Oil & Gas Onshore LLC | Slick Estate C #1742733350 | 9,900 |
| 507228Amendment | Mar 30, 2001 | Mar 30, 2001 | Kerr-McGee Oil & Gas Onshore LLC | Slick Estate C #1742733350 | 10,000 |
| 507164 | Mar 29, 2001 | Mar 29, 2001 | Kerr-McGee Oil & Gas Onshore LLC | Slick Estate -C- #1642733347 | 10,000 |
| 507164Amendment | Mar 29, 2001 | Mar 29, 2001 | Kerr-McGee Oil & Gas Onshore LLC | Slick Estate -C- #1642733347 | 10,500 |
| 506779 | Mar 26, 2001 | Mar 26, 2001 | Texas Independent Explor., Inc. | Alvarado, Francisco et UX #142732494 | 8,700 |
| 506724 | Mar 26, 2001 | Mar 26, 2001 | Texas Independent Explor., Inc. | Mayfair Labrisa #542733190 | 7,268 |
| 506944 | Mar 23, 2001 | Mar 23, 2001 | M. J. G., Inc. | Guerra Bros. #542733346 | 10,800 |
| 505916 | Mar 23, 2001 | Mar 23, 2001 | Kerr-McGee Oil & Gas Onshore LLC | Frost National Bank -A- #742733337 | 7,800 |
| 505916Amendment | Mar 23, 2001 | Mar 23, 2001 | Kerr-McGee Oil & Gas Onshore LLC | Frost National Bank -A- #742733337 | 8,380 |
| 505916Amendment | Mar 23, 2001 | Mar 23, 2001 | Kerr-McGee Oil & Gas Onshore LLC | Frost National Bank -A- #742733337 | 7,800 |
| 505760 | Mar 21, 2001 | Mar 21, 2001 | Texas Independent Explor., Inc. | Martinez, F. F. 546 #5B42733335 | 8,300 |
| 506560 | Mar 16, 2001 | Mar 16, 2001 | Coastal Oil & Gas Corporation | USA 1 #142732537 | 11,970 |
| 506449 | Mar 13, 2001 | Mar 13, 2001 | Kerr-McGee Oil & Gas Onshore LLC | Garcia, L & L Co. -C- #1342732705 | 5,490 |
| 506375 | Mar 12, 2001 | Mar 12, 2001 | Conoco Inc. | Slick, T. B. B 528 #19142733345 | 6,693 |
| 506304 | Mar 9, 2001 | Mar 9, 2001 | M. J. G., Inc. | Celestino Garza Gas Unit #842733344 | 10,600 |
| 505322 | Mar 9, 2001 | Mar 9, 2001 | Kerr-McGee Oil & Gas Onshore LLC | Garcia, I. Y. #2442733330 | 13,000 |
| 506245 | Mar 8, 2001 | Mar 8, 2001 | Neuhaus, V. F. Properties, Inc. | Farias Unit #242732114 | 1,570 |
| 506071 | Mar 8, 2001 | Mar 8, 2001 | Osborn,w.b. Oil & Gas Operations | Cameron #350942733340 | 7,000 |
| 506071Amendment | Mar 8, 2001 | Mar 8, 2001 | Osborn,w.b. Oil & Gas Operations | Cameron #350942733340 | 7,000 |
| 506190 | Mar 7, 2001 | Mar 7, 2001 | Dominion Expl. & Prod., Inc. | Buchholz, William R. #142733343 | 8,600 |
| 506187 | Mar 7, 2001 | Mar 7, 2001 | El Paso Production Company | Ramirez #142733342 | 14,500 |
| 506156 | Mar 7, 2001 | Mar 7, 2001 | Texas Independent Explor., Inc. | Mayfair Labrisa #942733341 | 8,000 |
| 506148 | Mar 6, 2001 | Mar 6, 2001 | M. J. G., Inc. | Barrera #142733260 | 9,569 |
| 506014 | Mar 2, 2001 | Mar 2, 2001 | M. J. G., Inc. | Bentsen-Whittington Gas Unit #1 #542733338 | 10,500 |
| 506014Amendment | Mar 2, 2001 | Mar 2, 2001 | M. J. G., Inc. | Bentsen-Whittington Gas Unit #1 #542733338 | 11,500 |
| 505961 | Mar 1, 2001 | Mar 1, 2001 | Shell Western E&P | Barrera, F. State #442731382 | 10,810 |
| 505917 | Feb 28, 2001 | Feb 28, 2001 | Kerr-McGee Oil & Gas Onshore LLC | Alvarez-Hinojosa Gas Unit #242732343 | 5,930 |
| 505915 | Feb 28, 2001 | Feb 28, 2001 | Kerr-McGee Oil & Gas Onshore LLC | De Garza, C. L. #3842733336 | 8,800 |
| 505856 | Feb 27, 2001 | Feb 27, 2001 | Kerr-McGee Oil & Gas Onshore LLC | Saenz, M. -State- #2342731859 | 6,400 |
| 505249 | Feb 22, 2001 | Feb 22, 2001 | WJW Operating Co.,llc | Cantu #142732907 | 5,916 |
| 505564 | Feb 20, 2001 | Feb 20, 2001 | Totalfinaelf E&P USA Inc | Southwest Farm & Ranch - State #1642733334 | 10,000 |
| 505408 | Feb 15, 2001 | Feb 15, 2001 | Coastal Oil & Gas Corporation | Samano #2042733333 | 13,000 |
| 505263 | Feb 13, 2001 | Feb 13, 2001 | Kerr-McGee Oil & Gas Onshore LLC | Garcia, I. Y. #1642732531 | 8,860 |
| 505186 | Feb 12, 2001 | Feb 12, 2001 | Kerr-McGee Oil & Gas Onshore LLC | Garcia, I. Y. #2742733329 | 13,000 |
| 505159 | Feb 9, 2001 | Feb 9, 2001 | M. J. G., Inc. | Bentsen-Whittington Gas Unit #1 #442733328 | 10,600 |
| 505111 | Feb 9, 2001 | Feb 9, 2001 | Kerr-McGee Oil & Gas Onshore LLC | A. G. Hermann Gas Unit #642732881 | 6,120 |
| 505053 | Feb 7, 2001 | Feb 7, 2001 | Coastal Oil & Gas Corporation | USA 1 #342732577 | 12,150 |
| 504897 | Feb 2, 2001 | Feb 2, 2001 | Conoco Inc. | Slick, T. B. A-229 #17942733020 | 6,460 |
| 504897Amendment | Feb 2, 2001 | Feb 2, 2001 | Conoco Inc. | Slick, T. B. A-229 #17942733020 | 6,600 |
| 504781 | Jan 31, 2001 | Jan 31, 2001 | Kerr-McGee Oil & Gas Onshore LLC | Laurel, C. #1142733327 | 8,650 |
| 504751 | Jan 31, 2001 | Jan 31, 2001 | Texas Independent Explor., Inc. | Slick 531 #442733326 | 7,200 |
| 504693 | Jan 30, 2001 | Jan 30, 2001 | Thorp Petroleum Corporation | Salinas, Fausto #242733325 | 10,300 |
| 504693Amendment | Jan 30, 2001 | Jan 30, 2001 | Thorp Petroleum Corporation | Salinas, Fausto #242733325 | 10,300 |
| 504693Amendment | Jan 30, 2001 | Jan 30, 2001 | Thorp Petroleum Corporation | Salinas, Fausto #242733325 | 10,300 |
| 504552 | Jan 26, 2001 | Jan 26, 2001 | Samedan Oil Corporation | Barrera-Yzaguirre #142733324 | 5,800 |
| 504502 | Jan 25, 2001 | Jan 25, 2001 | Samedan Oil Corporation | Guillen, M. P. #142733323 | 5,500 |
| 504235 | Jan 25, 2001 | Jan 25, 2001 | WJW Operating Co.,llc | Cantu #242732943 | 6,500 |
| 504443 | Jan 23, 2001 | Jan 23, 2001 | Totalfinaelf E&P USA Inc | Slick, T. B. Estate #13042733322 | 11,000 |