| 487875Amendment | Sep 29, 1999 | Sep 29, 1999 | Endeavor Energy Resources L.P. | Goodman #2 | 7,550 | 22735265 |
| 487915 | Sep 27, 1999 | Sep 27, 1999 | Santa FE Energy Resources, Inc. | Allday "N14" #1 | 8,300 | 22735382 |
| 487915Amendment | Sep 27, 1999 | Sep 27, 1999 | Santa FE Snyder Corporation | Allday "N14" #1 | 8,300 | 22735382 |
| 487739 | Sep 24, 1999 | Sep 24, 1999 | Anadarko Petroleum Corp. | Snyder, Susie B. #2041 | 3,500 | 22735378 |
| 487569 | Sep 24, 1999 | Sep 24, 1999 | Westport Oil and Gas Company Inc | Roberts, Dora #226 | 3,285 | 22735223 |
| 487530 | Sep 24, 1999 | Sep 24, 1999 | Robertson Resources, Inc. | Clay, H. R. -A- #2 | 3,500 | 22701798 |
| 487871 | Sep 23, 1999 | Sep 23, 1999 | Santa FE Energy Resources, Inc. | Cloud "N3" #1 | 8,300 | 22735381 |
| 487871Amendment | Sep 23, 1999 | Sep 23, 1999 | Santa FE Snyder Corporation | Cloud "N3" #1 | 8,300 | 22735381 |
| 487815 | Sep 23, 1999 | Sep 23, 1999 | Chevron U. S. A. Inc. | Dodge, G. M. #94 | 3,500 | 22735380 |
| 487844 | Sep 22, 1999 | Sep 22, 1999 | Anadarko Petroleum Corp. | Snyder, Susie B. #2731 | 3,500 | 22735379 |
| 487594 | Sep 22, 1999 | Sep 22, 1999 | Vista Resources, Inc. (A) | Clay, H. R. #9W | 3,300 | 22733910 |
| 486908 | Sep 22, 1999 | Sep 22, 1999 | Westport Oil and Gas Company Inc | Roberts, Dora #211 | 3,076 | 22704311 |
| 486905 | Sep 22, 1999 | Sep 22, 1999 | Westport Oil and Gas Company Inc | Chalk, Otis #3 | 3,900 | 22704225 |
| 486907 | Sep 21, 1999 | Sep 21, 1999 | Westport Oil and Gas Company Inc | Roberts, Dora #102B | 2,972 | 22704399 |
| 486906 | Sep 21, 1999 | Sep 21, 1999 | Westport Oil and Gas Company Inc | Roberts, Dora #107 | 3,000 | 22703205 |
| 487725 | Sep 20, 1999 | Sep 20, 1999 | Miltex Oil Company | Texaco 23 #1 | 8,000 | 22735377 |
| 487725Amendment | Sep 20, 1999 | Sep 20, 1999 | Miltex Oil Company | Texaco 23 #1 | 7,830 | 22735377 |
| 487724 | Sep 20, 1999 | Sep 20, 1999 | Miltex Oil Company | Texaco 23 #2 | 8,000 | 22735376 |
| 487724Amendment | Sep 20, 1999 | Sep 20, 1999 | Miltex Oil Company | Texaco 23 #2 | 7,970 | 22735376 |
| 487723 | Sep 20, 1999 | Sep 20, 1999 | Miltex Oil Company | Robertson #2 | 8,000 | 22735375 |
| 487723Amendment | Sep 20, 1999 | Sep 20, 1999 | Miltex Oil Company | Robertson #2 | 7,830 | 22735375 |
| 487704 | Sep 17, 1999 | Sep 17, 1999 | Anadarko Petroleum Corp. | Snyder, Susie B. #2042 | 3,500 | 22735374 |
| 487703 | Sep 17, 1999 | Sep 17, 1999 | Anadarko Petroleum Corp. | Snyder, Susie B. #2058 | 3,500 | 22735373 |
| 487702 | Sep 17, 1999 | Sep 17, 1999 | Anadarko Petroleum Corp. | Snyder, Susie B. #2031 | 3,500 | 22735372 |
| 487471 | Sep 10, 1999 | Sep 10, 1999 | Santa FE Energy Resources, Inc. | Powell Ranch "36" #4 | 7,850 | 22735371 |
| 487245 | Sep 2, 1999 | Sep 2, 1999 | Santa FE Energy Resources, Inc. | Barber "N15" #2 | 8,300 | 22735370 |
| 487244 | Sep 2, 1999 | Sep 2, 1999 | Santa FE Energy Resources, Inc. | Barber "15" #1 | 8,300 | 22735369 |
| 486425 | Sep 2, 1999 | Sep 2, 1999 | Vista Resources, Inc. (A) | Roberts, Dora -E- #7 | 2,900 | 22735357 |
| 487174 | Sep 1, 1999 | Sep 1, 1999 | Santa FE Energy Resources, Inc. | Powell Ranch "36" #3 | 8,300 | 22735366 |
| 487173 | Sep 1, 1999 | Sep 1, 1999 | Santa FE Energy Resources, Inc. | Barber "1" #3 | 8,300 | 22735367 |
| 487172 | Sep 1, 1999 | Sep 1, 1999 | Santa FE Energy Resources, Inc. | Barber "1" #4 | 8,300 | 22735368 |
| 487114 | Aug 30, 1999 | Aug 30, 1999 | Santa FE Energy Resources, Inc. | Texaco "A35" #3 | 8,300 | 22735365 |
| 487011 | Aug 26, 1999 | Aug 26, 1999 | Santa FE Energy Resources, Inc. | Powell Ranch #2704 | 8,000 | 22735364 |
| 486904 | Aug 24, 1999 | Aug 24, 1999 | Miltex Oil Company | Powell 24 #1 | 7,900 | 22735363 |
| 486348 | Aug 23, 1999 | Aug 23, 1999 | Kerr-McGee Corporation | Kloh #22 | 2,600 | 22731545 |
| 486352 | Aug 13, 1999 | Aug 13, 1999 | Kerr-McGee Corporation | Kloh #59 | 2,900 | 22735360 |
| 486351 | Aug 13, 1999 | Aug 13, 1999 | Kerr-McGee Corporation | Kloh #1 | 2,348 | 22702945 |
| 486351Amendment | Aug 13, 1999 | Aug 13, 1999 | Kerr-McGee Oil & Gas Onshore LLC | Kloh #1 | 2,450 | 22702945 |
| 486349 | Aug 13, 1999 | Aug 13, 1999 | Kerr-McGee Corporation | Kloh #48 | 2,900 | 22735359 |
| 486347 | Aug 13, 1999 | Aug 13, 1999 | Kerr-McGee Corporation | Kloh #21 | 2,633 | 22731547 |
| 486626 | Aug 12, 1999 | Aug 12, 1999 | Santa FE Energy Resources, Inc. | Garrett "40" #1 | 8,000 | 22735362 |
| 486626Amendment | Aug 12, 1999 | Aug 12, 1999 | Santa FE Energy Resources, Inc. | Garrett "40" #1 | 8,300 | 22735362 |
| 486356 | Aug 11, 1999 | Aug 11, 1999 | Kerr-McGee Corporation | Kloh #24 | 2,600 | 22731546 |
| 486565 | Aug 10, 1999 | Aug 10, 1999 | Torch Operating Company | Cole, T. J. 35 #1 | 6,000 | 22735361 |
| 486426 | Aug 9, 1999 | Aug 9, 1999 | Capataz Operating, Inc. | Choate #1 | 9,650 | 22735358 |
| 486161 | Jul 27, 1999 | Jul 27, 1999 | Vista Resources, Inc. (A) | Roberts, Dora -E- #5 | 2,900 | 22730854 |
| 486134 | Jul 23, 1999 | Jul 23, 1999 | Santa FE Energy Resources, Inc. | Powell Ranch #2703 | 8,000 | 22735356 |
| 485939 | Jul 21, 1999 | Jul 21, 1999 | Westport Oil and Gas Company Inc | Roberts, Dora #131W | 3,000 | 22735350 |
| 485938 | Jul 21, 1999 | Jul 21, 1999 | Westport Oil and Gas Company Inc | Roberts, Dora #132W | 3,000 | 22735351 |
| 485989 | Jul 20, 1999 | Jul 20, 1999 | Westport Oil and Gas Company Inc | Roberts, Dora #133W | 3,000 | 22735355 |
| 485988 | Jul 20, 1999 | Jul 20, 1999 | Westport Oil and Gas Company Inc | Roberts, Dora #134W | 3,000 | 22735354 |
| 485987 | Jul 20, 1999 | Jul 20, 1999 | Westport Oil and Gas Company Inc | Roberts, Dora #135W | 3,000 | 22735353 |
| 485986 | Jul 20, 1999 | Jul 20, 1999 | Westport Oil and Gas Company Inc | Roberts, Dora #130W | 3,000 | 22735352 |
| 485692 | Jul 7, 1999 | Jul 7, 1999 | Santa FE Energy Resources, Inc. | Allday "N11" #1 | 8,000 | 22735349 |
| 485146 | Jul 7, 1999 | Jul 7, 1999 | Statex Petroleum Inc. | Denman, L. C. #16 | 3,000 | 22735342 |
| 485600 | Jul 1, 1999 | Jul 1, 1999 | Midland Oil and Gas, Inc. | Bull Winkle #1 | 7,800 | 22735348 |
| 485600Amendment | Jul 1, 1999 | Jul 1, 1999 | Midland Oil and Gas, Inc. | Bull Winkle #1 | 7,800 | 22735348 |
| 485382 | Jun 22, 1999 | Jun 22, 1999 | Anadarko Petroleum Corp. | Snyder, Susie B. #2742 | 3,500 | 22735347 |
| 485381 | Jun 22, 1999 | Jun 22, 1999 | Anadarko Petroleum Corp. | Snyder, Susie B. #2768 | 3,500 | 22735346 |
| 484918 | Jun 21, 1999 | Jun 21, 1999 | Vista Resources, Inc. (A) | Chalk "A" #4 | 3,500 | 22702282 |
| 484918Amendment | Jun 21, 1999 | Jun 21, 1999 | Prize Operating Company | Chalk -A- #4 | 4,001 | 22702282 |
| 485320 | Jun 18, 1999 | Jun 18, 1999 | Anadarko Petroleum Corp. | Snyder, Susie B. #2716 | 3,500 | 22735345 |
| 485319 | Jun 18, 1999 | Jun 18, 1999 | Anadarko Petroleum Corp. | Snyder, Susie B. #2059 | 3,500 | 22735344 |
| 485318 | Jun 18, 1999 | Jun 18, 1999 | Anadarko Petroleum Corp. | Snyder, Susie B. #2013 | 3,500 | 22735343 |
| 485151 | Jun 11, 1999 | Jun 11, 1999 | Santa FE Energy Resources, Inc. | Powell Ranch "38" #2 | 8,000 | 22735341 |
| 485103 | Jun 11, 1999 | Jun 11, 1999 | Santa FE Energy Resources, Inc. | Barber "1" #2 | 8,000 | 22735339 |
| 485103Amendment | Jun 11, 1999 | Jun 11, 1999 | Santa FE Energy Resources, Inc. | Barber "1" #2 | 8,000 | 22735339 |
| 485102 | Jun 11, 1999 | Jun 11, 1999 | Santa FE Energy Resources, Inc. | Texaco "25" #3 | 8,000 | 22735340 |
| 484989 | Jun 4, 1999 | Jun 4, 1999 | Santa FE Energy Resources, Inc. | Powell Ranch #2702 | 8,000 | 22735338 |
| 484832 | May 27, 1999 | May 27, 1999 | Marathon Oil Company | Abrams #3 | 2,000 | 22701560 |
| 484790 | May 26, 1999 | May 26, 1999 | Santa FE Energy Resources, Inc. | Barber "11" #1 | 8,000 | 22735337 |
| 484790Amendment | May 26, 1999 | May 26, 1999 | Santa FE Energy Resources, Inc. | Barber "11" #1 | 8,000 | 22735337 |
| 484790Amendment | May 26, 1999 | May 26, 1999 | Santa FE Energy Resources, Inc. | Barber "11" #1 | 8,000 | 22735337 |
| 484764 | May 26, 1999 | May 26, 1999 | Santa FE Energy Resources, Inc. | Texaco "23" #2 | 8,000 | 22735336 |
| 484764Amendment | May 26, 1999 | May 26, 1999 | Santa FE Energy Resources, Inc. | Texaco "23" #2 | 8,000 | 22735336 |
| 484617 | May 18, 1999 | May 18, 1999 | Santa FE Energy Resources, Inc. | Barber "1" #1 | 8,000 | 22735334 |
| 484616 | May 18, 1999 | May 18, 1999 | Santa FE Energy Resources, Inc. | Powell Ranch "14" #2 | 8,000 | 22735335 |
| 484299 | May 5, 1999 | May 5, 1999 | Miltex Oil Company | Powell "12" #2 | 7,900 | 22735333 |
| 484161 | Apr 29, 1999 | Apr 29, 1999 | Thompson, J. Cleo | Homan #1 | 4,000 | 22734900 |
| 484156 | Apr 29, 1999 | Apr 29, 1999 | Santa FE Energy Resources, Inc. | Texaco "23" #1 | 8,000 | 22735332 |
| 484156Amendment | Apr 29, 1999 | Apr 29, 1999 | Santa FE Snyder Corporation | Texaco "23" #1 | 8,000 | 22735332 |
| 484078 | Apr 27, 1999 | Apr 27, 1999 | Santa FE Energy Resources, Inc. | Powell Ranch #2701 | 8,000 | 22735331 |
| 484078Amendment | Apr 27, 1999 | Apr 27, 1999 | Santa FE Energy Resources, Inc. | Powell Ranch #2701 | 8,000 | 22735331 |
| 483856 | Apr 19, 1999 | Apr 19, 1999 | Vista Resources, Inc. (A) | Chalk A #18 | 3,300 | 22735330 |
| 483856Amendment | Apr 19, 1999 | Apr 19, 1999 | Vista Resources, Inc. (A) | Chalk A #18 | 3,300 | 22735330 |
| 483617 | Mar 31, 1999 | Mar 31, 1999 | Santa FE Energy Resources, Inc. | Powell Ranch "24" #2 | 8,000 | 22735329 |
| 483408 | Mar 24, 1999 | Mar 24, 1999 | Santa FE Energy Resources, Inc. | Texaco "37" #3 | 8,000 | 22735327 |
| 483407 | Mar 24, 1999 | Mar 24, 1999 | Santa FE Energy Resources, Inc. | Texaco "25" #2 | 8,000 | 22735328 |
| 482338 | Mar 17, 1999 | Mar 17, 1999 | Westport Oil and Gas Company Inc | Chalk, Otis #14 | 3,400 | 22730373 |
| 483171 | Mar 11, 1999 | Mar 11, 1999 | Santa FE Energy Resources, Inc. | Swafford Trust "42' #1 | 8,000 | 22735325 |
| 483165 | Mar 11, 1999 | Mar 11, 1999 | Santa FE Energy Resources, Inc. | Powell Ranch #3 | 8,000 | 22735326 |
| 482943 | Feb 26, 1999 | Feb 26, 1999 | Santa FE Energy Resources, Inc. | Texaco "37" #2 | 8,000 | 22735324 |
| 481826 | Feb 1, 1999 | Feb 1, 1999 | Westport Oil and Gas Company Inc | Chalk, Otis #5 | 3,300 | 22704223 |
| 481355 | Dec 10, 1998 | Dec 10, 1998 | Vista Resources, Inc. (A) | Chalk -A- #8 | 3,500 | 22702501 |
| 480812 | Nov 20, 1998 | Nov 20, 1998 | Vista Resources, Inc. (A) | Chalk, Otis "EO" #1W | 3,000 | 22735322 |
| 480812Amendment | Nov 20, 1998 | Nov 20, 1998 | Prize Operating Company | Chalk, Otis /EO/ #1W | 3,400 | 22735322 |
| 480935 | Nov 19, 1998 | Nov 19, 1998 | Maralo, Inc. | Ryan, J. B. #11 | 10,100 | 22735323 |
| 480811 | Nov 18, 1998 | Nov 18, 1998 | Vista Resources, Inc. (A) | Chalk -A- #14 | 3,500 | 22710952 |
| 480811Amendment | Nov 18, 1998 | Nov 18, 1998 | Vista Resources, Inc. (A) | Chalk, Otis -A- #14 | 3,500 | 22710952 |
| 480663 | Nov 16, 1998 | Nov 16, 1998 | Westport Oil and Gas Company Inc | Chalk, Otis #5W | 3,300 | 22735321 |