| 495289 | May 22, 2000 | May 22, 2000 | Williams, Clayton Energy, Inc. | Panola | Keller, Claudia #5 | 10,000 | 36534389 |
| 495288 | May 22, 2000 | May 22, 2000 | Williams, Clayton Energy, Inc. | Panola | Werner, Fina "A" #3 | 10,000 | 36534390 |
| 495286 | May 22, 2000 | May 22, 2000 | Williams, Clayton Energy, Inc. | Panola | Werner, Fina "B" #4 | 10,000 | 36534391 |
| 494628 | May 2, 2000 | May 2, 2000 | Williams, Clayton Energy, Inc. | Milam | Frazier Unit #2H | 7,000 | 33133520 |
| 494628Amendment | May 2, 2000 | May 2, 2000 | Williams, Clayton Energy, Inc. | Milam | Frazier Unit #2H | 7,000 | 33133520 |
| 493776 | Apr 10, 2000 | Apr 10, 2000 | Williams, Clayton Energy, Inc. | Panola | Davis, Ella Mae #4 | 10,000 | 36534373 |
| 493775 | Apr 10, 2000 | Apr 10, 2000 | Williams, Clayton Energy, Inc. | Panola | Furrh, J. D. et Al #5A | 10,000 | 36534372 |
| 493777 | Apr 6, 2000 | Apr 6, 2000 | Williams, Clayton Energy, Inc. | Panola | Guill, J. C. #3 | 10,000 | 36534371 |
| 492944 | Mar 10, 2000 | Mar 10, 2000 | Williams, Clayton Energy, Inc. | Burleson | Porter-Trask #1H | 8,000 | 05133580 |
| 492943 | Mar 10, 2000 | Mar 10, 2000 | Williams, Clayton Energy, Inc. | Robertson | McGrew Unit #1 | 17,500 | 39530603 |
| 492623 | Mar 2, 2000 | Mar 2, 2000 | Williams, Clayton Energy, Inc. | Panola | Payne #6 | 10,000 | 36534353 |
| 492399 | Feb 25, 2000 | Feb 25, 2000 | Williams, Clayton Energy, Inc. | Burleson | Cotrone-Jewish Welfare Unit #2H | 7,500 | 05133579 |
| 492399Amendment | Feb 25, 2000 | Feb 25, 2000 | Williams, Clayton Energy, Inc. | Burleson | Cotrone-Jewish Welfare Unit #2H | 7,500 | 05133579 |
| 492398 | Feb 25, 2000 | Feb 25, 2000 | Williams, Clayton Energy, Inc. | Robertson | Kapser Unit #2H | 7,000 | 39530600 |
| 492398Amendment | Feb 25, 2000 | Feb 25, 2000 | Williams, Clayton Energy, Inc. | Robertson | Kapser Unit #2H | 7,000 | 39530600 |
| 492149 | Feb 16, 2000 | Feb 16, 2000 | Williams, Clayton Energy, Inc. | Burleson | Demny-Japhet Unit #1H | 7,000 | 05133477 |
| 492149Amendment | Feb 16, 2000 | Feb 16, 2000 | Williams, Clayton Energy, Inc. | Burleson | Demny-Japhet Unit #1H | 7,000 | 05133477 |
| 491127 | Jan 18, 2000 | Jan 18, 2000 | Williams, Clayton Energy, Inc. | Burleson | James Wood Unit #2H | 7,500 | 05133578 |
| 491127Amendment | Jan 18, 2000 | Jan 18, 2000 | Williams, Clayton Energy, Inc. | Burleson | James Wood Unit #2H | 7,500 | 05133578 |
| 490646 | Dec 28, 1999 | Dec 28, 1999 | Williams, Clayton Energy, Inc. | Robertson | Varisco Carter Unit #1H | 7,500 | 39530599 |
| 490646Amendment | Dec 28, 1999 | Dec 28, 1999 | Williams, Clayton Energy, Inc. | Robertson | Varisco Carter Unit #1H | 7,500 | 39530599 |
| 490602 | Dec 23, 1999 | Dec 23, 1999 | Williams, Clayton Energy, Inc. | Panola | Furrh, J. D. et Al #4A | 9,540 | 36533655 |
| 489535 | Nov 16, 1999 | Nov 16, 1999 | Williams, Clayton Energy, Inc. | Robertson | Varisco Estate Unit #1 | 17,500 | 39530597 |
| 488947 | Nov 1, 1999 | Nov 1, 1999 | Williams, Clayton Energy, Inc. | Robertson | Flowers-Reistino Unit #3H | 7,000 | 39530595 |
| 488947Amendment | Nov 1, 1999 | Nov 1, 1999 | Williams, Clayton Energy, Inc. | Robertson | Flowers-Reistino Unit #3H | 7,000 | 39530595 |
| 488947Amendment | Nov 1, 1999 | Nov 1, 1999 | Williams, Clayton Energy, Inc. | Robertson | Flowers-Reistino Unit #3H | 7,000 | 39530595 |
| 488948 | Oct 29, 1999 | Oct 29, 1999 | Williams, Clayton Energy, Inc. | Robertson | Scarpinato-Denena Unit #2H | 7,000 | 39530594 |
| 488948Amendment | Oct 29, 1999 | Oct 29, 1999 | Williams, Clayton Energy, Inc. | Robertson | Scarpinato-Denena Unit #2H | 7,000 | 39530594 |
| 487921 | Oct 29, 1999 | Oct 29, 1999 | Williams, Clayton Energy, Inc. | Robertson | Cotropia-Ferrara Unit #3H | 6,800 | 39530592 |
| 487921Amendment | Oct 29, 1999 | Oct 29, 1999 | Williams, Clayton Energy, Inc. | Robertson | Cotropia-Ferrara Unit #3H | 6,800 | 39530592 |
| 488758 | Oct 25, 1999 | Oct 25, 1999 | Williams, Clayton Energy, Inc. | Gregg | Flanagan #4 | 7,200 | 18331161 |
| 488111 | Oct 4, 1999 | Oct 4, 1999 | Williams, Clayton Energy, Inc. | Burleson | Mecom Unit #2H | 7,500 | 05133576 |
| 488111Amendment | Oct 4, 1999 | Oct 4, 1999 | Williams, Clayton Energy, Inc. | Burleson | Mecom Unit #2H | 7,500 | 05133576 |
| 488111Amendment | Oct 4, 1999 | Oct 4, 1999 | Williams, Clayton Energy, Inc. | Burleson | Mecom Unit #2H | 7,500 | 05133576 |
| 488110 | Oct 4, 1999 | Oct 4, 1999 | Williams, Clayton Energy, Inc. | Robertson | Muse-Fazzino Unit #2H | 7,000 | 39530593 |
| 488110Amendment | Oct 4, 1999 | Oct 4, 1999 | Williams, Clayton Energy, Inc. | Robertson | Muse-Fazzino Unit #2H | 7,000 | 39530593 |
| 487851 | Sep 23, 1999 | Sep 23, 1999 | Williams, Clayton Energy, Inc. | Robertson | Muse-Cash Unit #2H | 6,500 | 39530591 |
| 487851Amendment | Sep 23, 1999 | Sep 23, 1999 | Williams, Clayton Energy, Inc. | Robertson | Muse-Cash Unit #2H | 6,500 | 39530591 |
| 487249 | Sep 3, 1999 | Sep 3, 1999 | Williams, Clayton Energy, Inc. | Wharton | Popp, E. J. #3 | 11,500 | 48134140 |
| 486579 | Aug 12, 1999 | Aug 12, 1999 | Williams, Clayton Energy, Inc. | Robertson | J. C. Fazzino Unit #1 | 16,500 | 39530562 |
| 486579Amendment | Aug 12, 1999 | Aug 12, 1999 | Williams, Clayton Energy, Inc. | Robertson | J. C. Fazzino Unit #1 | 16,175 | 39530562 |
| 486160 | Jul 27, 1999 | Jul 27, 1999 | Williams, Clayton Energy, Inc. | Panola | Keller, C. #4 | 9,710 | 36533598 |
| 485900 | Jul 21, 1999 | Jul 21, 1999 | Williams, Clayton Energy, Inc. | Panola | Furrh, J. D. et Al #1A | 9,761 | 36531530 |
| 485298 | Jun 22, 1999 | Jun 22, 1999 | Williams, Clayton Energy, Inc. | Panola | Payne #1 | 9,806 | 36532563 |
| 483870 | Apr 19, 1999 | Apr 19, 1999 | Williams, Clayton Energy, Inc. | Robertson | J. C. Fazzino Unit #2 | 17,000 | 39530583 |
| 482816 | Feb 22, 1999 | Feb 22, 1999 | Williams, Clayton Energy, Inc. | Duval | Driscoll Foundation #1D | 2,200 | 13138320 |
| 482816Amendment | Feb 22, 1999 | Feb 22, 1999 | Williams, Clayton Energy, Inc. | Duval | Driscoll Foundation #1D | 3,650 | 13138320 |
| 482808 | Feb 19, 1999 | Feb 19, 1999 | Williams, Clayton Energy, Inc. | Duval | Driscoll Foundation #1Y | 11,654 | 13138254 |
| 482277 | Jan 27, 1999 | Jan 27, 1999 | Williams, Clayton Energy, Inc. | Baylor | Cowan Ranch "206" #1HH | 6,000 | 02331527 |
| 481203 | Dec 1, 1998 | Dec 1, 1998 | Williams, Clayton Energy, Inc. | Duval | The Duwel Co. #1 | 11,675 | 13132006 |
| 479336 | Sep 9, 1998 | Sep 9, 1998 | Williams, Clayton Energy, Inc. | Baylor | Cowan Ranch 113 #1 | 3,000 | 02331533 |
| 478673 | Aug 12, 1998 | Aug 12, 1998 | Williams, Clayton Energy, Inc. | Jim Hogg | Eshleman-Vogt #1 | 11,000 | 24732116 |
| 478535 | Aug 6, 1998 | Aug 6, 1998 | Williams, Clayton Energy, Inc. | Walker | Wash-McAdams -a- Unit #2HH | 13,000 | 47130286 |
| 477396 | Jun 25, 1998 | Jun 25, 1998 | Williams, Clayton Energy, Inc. | Duval | Driscoll Foundation #2SD | 8,500 | 13138273 |
| 475817 | Apr 30, 1998 | Apr 30, 1998 | Williams, Clayton Energy, Inc. | Robertson | Fulton OL Unit #1H | 6,500 | 39530564 |
| 475728 | Apr 28, 1998 | Apr 28, 1998 | Williams, Clayton Energy, Inc. | Duval | Driscoll Foundation #1Y | 12,500 | 13138254 |
| 475728Amendment | Apr 28, 1998 | Apr 28, 1998 | Williams, Clayton Energy, Inc. | Duval | Driscoll Foundation #1Y | 11,654 | 13138254 |
| 475149 | Apr 9, 1998 | Apr 9, 1998 | Williams, Clayton Energy, Inc. | Robertson | J. C. Fazzino Unit #1 | 16,500 | 39530562 |
| 474943 | Apr 2, 1998 | Apr 2, 1998 | Williams, Clayton Energy, Inc. | Robertson | Hudson-Destefano Unit #1H | 6,700 | 39530432 |
| 474282 | Mar 12, 1998 | Mar 12, 1998 | Williams, Clayton Energy, Inc. | Walker | Wash McAdams Unit #3HH | 12,500 | 47130285 |
| 473215 | Feb 10, 1998 | Feb 10, 1998 | Williams, Clayton Energy, Inc. | Robertson | Muse-Fazzino Unit #1H | 7,000 | 39530558 |
| 473215Amendment | Feb 10, 1998 | Feb 10, 1998 | Williams, Clayton Energy, Inc. | Robertson | Muse-Fazzino Unit #1H | 7,000 | 39530558 |
| 472211 | Jan 21, 1998 | Jan 21, 1998 | Williams, Clayton Energy, Inc. | Robertson | Broughton-Lewis Heirs Unit #1H | 6,500 | 39530499 |
| 472045 | Jan 9, 1998 | Jan 9, 1998 | Williams, Clayton Energy, Inc. | Burleson | Erickson OL Unit #1H | 6,850 | 05133569 |
| 472045Amendment | Jan 9, 1998 | Jan 9, 1998 | Williams, Clayton Energy, Inc. | Burleson | Erickson OL Unit #1H | 6,850 | 05133569 |
| 472045Amendment | Jan 9, 1998 | Jan 9, 1998 | Williams, Clayton Energy, Inc. | Burleson | Erickson OL Unit #1H | 7,200 | 05133569 |
| 471591 | Dec 23, 1997 | Dec 23, 1997 | Williams, Clayton Energy, Inc. | Freestone | Carroll Unit #1H | 10,000 | 16131469 |
| 471591Amendment | Dec 23, 1997 | Dec 23, 1997 | Williams, Clayton Energy, Inc. | Freestone | Carroll Unit #1H | 10,000 | 16131469 |
| 469103 | Nov 25, 1997 | Nov 25, 1997 | Williams, Clayton Energy, Inc. | Robertson | Cotropia-Ferrara Unit #2H | 6,800 | 39530544 |
| 470512 | Nov 24, 1997 | Nov 24, 1997 | Williams, Clayton Energy, Inc. | Burleson | Rathjen OL Unit #1H | 7,500 | 05133567 |
| 470512Amendment | Nov 24, 1997 | Nov 24, 1997 | Williams, Clayton Energy, Inc. | Burleson | Rathjen OL Unit #1H | 7,500 | 05133567 |
| 470328 | Nov 24, 1997 | Nov 24, 1997 | Williams, Clayton Energy, Inc. | Wharton | Martha Gas Unit #1 | 11,000 | 48134008 |
| 470328Amendment | Nov 24, 1997 | Nov 24, 1997 | Williams, Clayton Energy, Inc. | Wharton | Martha Gas Unit #1 | 11,000 | 48134008 |
| 470279 | Nov 21, 1997 | Nov 21, 1997 | Williams, Clayton Energy, Inc. | Baylor | Oil Can #1 | 3,000 | 02331529 |
| 469505 | Oct 31, 1997 | Oct 31, 1997 | Williams, Clayton Energy, Inc. | Robertson | Kaper Unit #1H | 7,000 | 39530548 |
| 469104 | Oct 23, 1997 | Oct 23, 1997 | Williams, Clayton Energy, Inc. | Robertson | Cotropia-Frazier Unit #1H | 6,600 | 39530545 |
| 468708 | Oct 13, 1997 | Oct 13, 1997 | Williams, Clayton Energy, Inc. | Robertson | Broughton-McAfee Unit #1H | 6,550 | 39530542 |
| 468372 | Oct 3, 1997 | Oct 3, 1997 | Williams, Clayton Energy, Inc. | Robertson | Broughton-Perrone Unit #1H | 7,100 | 39530540 |
| 467508 | Sep 15, 1997 | Sep 15, 1997 | Williams, Clayton Energy, Inc. | Burleson | TCB Rader Unit #2H | 7,100 | 05133565 |
| 467399 | Sep 11, 1997 | Sep 11, 1997 | Williams, Clayton Energy, Inc. | La Salle | Wright, H. R. #3H | 9,000 | 28331514 |
| 467074 | Sep 9, 1997 | Sep 9, 1997 | Williams, Clayton Energy, Inc. | Robertson | Denena-Ely Unit #1H | 7,100 | 39530536 |
| 465913 | Aug 7, 1997 | Aug 7, 1997 | Williams, Clayton Energy, Inc. | Robertson | Perrone-Muse Unit #1H | 6,350 | 39530531 |
| 465913Amendment | Aug 7, 1997 | Aug 7, 1997 | Williams, Clayton Energy, Inc. | Robertson | Perrone-Muse Unit #1H | 6,350 | 39530531 |
| 465912 | Aug 7, 1997 | Aug 7, 1997 | Williams, Clayton Energy, Inc. | Burleson | Lewis-Monical #1H | 8,100 | 05132664 |
| 465646 | Jul 31, 1997 | Jul 31, 1997 | Williams, Clayton Energy, Inc. | Robertson | Ely-Denena Unit #1H | 7,000 | 39530526 |
| 465645 | Jul 31, 1997 | Jul 31, 1997 | Williams, Clayton Energy, Inc. | Robertson | Scamardo-Cotropia Unit #2H | 6,400 | 39530525 |
| 462903 | Jul 8, 1997 | Jul 8, 1997 | Williams, Clayton Energy, Inc. | Robertson | Muse-Cash Unit #1H | 6,500 | 39530511 |
| 462904 | Jun 24, 1997 | Jun 24, 1997 | Williams, Clayton Energy, Inc. | Robertson | Scarpinato-Reistino Unit #1H | 6,500 | 39530512 |
| 464071 | Jun 23, 1997 | Jun 23, 1997 | Williams, Clayton Energy, Inc. | Burleson | Urbanovsky Unit #1H | 8,500 | 05133440 |
| 464095 | Jun 20, 1997 | Jun 20, 1997 | Williams, Clayton Energy, Inc. | Robertson | Ely Unit #1H | 7,000 | 39530519 |
| 463916 | Jun 18, 1997 | Jun 18, 1997 | Williams, Clayton Energy, Inc. | Robertson | Kubin-Scamardo Unit #1H | 6,800 | 39530518 |
| 463323 | Jun 5, 1997 | Jun 5, 1997 | Williams, Clayton Energy, Inc. | Burleson | Kostohryz Unit #1H | 7,800 | 05133541 |
| 463135 | Jun 2, 1997 | Jun 2, 1997 | Williams, Clayton Energy, Inc. | Robertson | Cotropia-Perrone Unit #1H | 6,500 | 39530513 |
| 462262 | May 14, 1997 | May 14, 1997 | Williams, Clayton Energy, Inc. | Robertson | Broughton-Nigliazzo Unit #1H | 6,500 | 39530508 |
| 462227 | May 12, 1997 | May 12, 1997 | Williams, Clayton Energy, Inc. | Baylor | Cowan Ranch "206" #1HH | 6,000 | 02331527 |
| 461909 | May 7, 1997 | May 7, 1997 | Williams, Clayton Energy, Inc. | Wharton | Wilbeck #2 | 11,000 | 48133070 |
| 461826 | May 1, 1997 | May 1, 1997 | Williams, Clayton Energy, Inc. | Burleson | Storm Unit #1H | 7,000 | 05133556 |
| 461741 | Apr 30, 1997 | Apr 30, 1997 | Williams, Clayton Energy, Inc. | Milam | Frazier Unit #1H | 6,500 | 33133480 |
| 461007 | Apr 11, 1997 | Apr 11, 1997 | Williams, Clayton Energy, Inc. | Burleson | Lewis Unit #1H | 7,500 | 05133547 |
| 460869 | Apr 9, 1997 | Apr 9, 1997 | Williams, Clayton Energy, Inc. | Robertson | Broughton-Lewis Heirs Unit #1H | 6,500 | 39530499 |