| 498821 | Apr 27, 2001 | Apr 27, 2001 | Valence Operating Company | Wood | McDowell Gas Unit #3 | 13,700 | 49931956 |
| 507906 | Apr 24, 2001 | Apr 24, 2001 | Valence Operating Company | Freestone | Ivy, Jim #1 | 13,200 | 16132058 |
| 507906Amendment | Apr 24, 2001 | Apr 24, 2001 | Valence Operating Company | Freestone | Ivy, Jim #1 | 13,200 | 16132058 |
| 507821 | Apr 19, 2001 | Apr 19, 2001 | Valence Operating Company | Freestone | Worthy Gas Unit #4 | 13,200 | 16132056 |
| 504764 | Mar 29, 2001 | Mar 29, 2001 | Valence Operating Company | Smith | Bracken Grandchildren Trust #1 | 13,000 | 42331180 |
| 506172 | Mar 13, 2001 | Mar 13, 2001 | Valence Operating Company | Freestone | Fryer Gas Unit "B" #2 | 13,000 | 16132040 |
| 506172Amendment | Mar 13, 2001 | Mar 13, 2001 | Valence Operating Company | Freestone | Fryer Gas Unit "B" #2 | 13,000 | 16132040 |
| 504816 | Mar 9, 2001 | Mar 9, 2001 | Valence Operating Company | Harrison | Mobley Gas Unit #9 | 10,400 | 20332667 |
| 505925 | Mar 6, 2001 | Mar 6, 2001 | Valence Operating Company | Smith | Katherine Luscombe Gas Unit #1 | 13,200 | 42331543 |
| 504231 | Mar 6, 2001 | Mar 6, 2001 | Valence Operating Company | Limestone | Wilson "V" #1 | 8,400 | 29330637 |
| 505952 | Mar 1, 2001 | Mar 1, 2001 | Valence Operating Company | Freestone | Boyd "B" #4 | 12,400 | 16132031 |
| 505365 | Feb 23, 2001 | Feb 23, 2001 | Valence Operating Company | Harrison | Garrett "E" #10 | 10,000 | 20332669 |
| 505365Amendment | Feb 23, 2001 | Feb 23, 2001 | Valence Operating Company | Harrison | Garrett "E" #10 | 10,000 | 20332669 |
| 505634 | Feb 21, 2001 | Feb 21, 2001 | Valence Operating Company | Harrison | Alice Snider Gas Unit #4 | 10,200 | 20332672 |
| 504871 | Feb 2, 2001 | Feb 2, 2001 | Valence Operating Company | Rains | West Yantis Gas Unit 2 #4 | 13,000 | 37930006 |
| 504463 | Jan 31, 2001 | Jan 31, 2001 | Valence Operating Company | Harrison | Snider, Alice #1 | 6,700 | 20330736 |
| 504463Amendment | Jan 31, 2001 | Jan 31, 2001 | Valence Operating Company | Harrison | Snider, Alice #1 | 9,935 | 20330736 |
| 504228 | Jan 23, 2001 | Jan 23, 2001 | Valence Operating Company | Freestone | Worthy Gas Unit #3 | 13,200 | 16131987 |
| 503430 | Dec 29, 2000 | Dec 29, 2000 | Valence Operating Company | Harrison | Alice Snider Gas Unit #3 | 10,200 | 20332661 |
| 502544 | Dec 28, 2000 | Dec 28, 2000 | Valence Operating Company | Leon | Campbell Gas Unit #1 | 8,400 | 28931265 |
| 502544Amendment | Dec 28, 2000 | Dec 28, 2000 | Valence Operating Company | Leon | Campbell Gas Unit #1 | 10,260 | 28931265 |
| 503010 | Dec 14, 2000 | Dec 14, 2000 | Valence Operating Company | Limestone | Wilson "V" #2 | 8,400 | 29331253 |
| 502811 | Dec 14, 2000 | Dec 14, 2000 | Valence Operating Company | Wood | Morgan, J. C. #2 | 8,200 | 49931332 |
| 502810 | Dec 13, 2000 | Dec 13, 2000 | Valence Operating Company | Wood | Foster, Mary Lou #1 | 8,800 | 49931110 |
| 502812 | Dec 8, 2000 | Dec 8, 2000 | Valence Operating Company | Freestone | Vera Kathleen #1 | 15,500 | 16131956 |
| 502812Amendment | Dec 8, 2000 | Dec 8, 2000 | Valence Operating Company | Freestone | Vera Kathleen #1 | 15,500 | 16131956 |
| 502548 | Dec 5, 2000 | Dec 5, 2000 | Valence Operating Company | Limestone | Schultz "E" #9 | 11,900 | 29331373 |
| 502543 | Dec 4, 2000 | Dec 4, 2000 | Valence Operating Company | Leon | Russell "A" #3 | 9,300 | 28931263 |
| 502493 | Nov 30, 2000 | Nov 30, 2000 | Valence Operating Company | Freestone | Worthy Gas Unit #1 | 13,000 | 16130177 |
| 502249 | Nov 21, 2000 | Nov 21, 2000 | Valence Operating Company | Cherokee | Chiles #3 | 8,600 | 07330548 |
| 502249Amendment | Nov 21, 2000 | Nov 21, 2000 | Valence Operating Company | Cherokee | Chiles #3 | 11,590 | 07330548 |
| 501802 | Nov 9, 2000 | Nov 9, 2000 | Valence Operating Company | Freestone | Stewards Mill Gas Unit 5 #1 | 11,000 | 16130459 |
| 501802Amendment | Nov 9, 2000 | Nov 9, 2000 | Valence Operating Company | Freestone | Stewards Mill Gas Unit 5 #1 | 11,950 | 16130459 |
| 501696 | Nov 7, 2000 | Nov 7, 2000 | Valence Operating Company | Smith | Bracken Grandchildren Trust #2 | 11,400 | 42331232 |
| 501696Amendment | Nov 7, 2000 | Nov 7, 2000 | Valence Operating Company | Smith | Bracken Grandchildren Trust #2 | 12,600 | 42331232 |
| 501547 | Nov 7, 2000 | Nov 7, 2000 | Valence Operating Company | Leon | Campbell Gas Unit #3 | 8,400 | 28931293 |
| 501160 | Nov 2, 2000 | Nov 2, 2000 | Valence Operating Company | Freestone | Reed "E" #5 | 13,000 | 16131912 |
| 501127 | Nov 2, 2000 | Nov 2, 2000 | Valence Operating Company | Rusk | Omie Robertson G.U. #1 #2 | 11,100 | 40133044 |
| 501475 | Nov 1, 2000 | Nov 1, 2000 | Valence Operating Company | Leon | Campbell Gas Unit #2 | 8,250 | 28931288 |
| 501475Amendment | Nov 1, 2000 | Nov 1, 2000 | Valence Operating Company | Leon | Campbell Gas Unit #2 | 10,287 | 28931288 |
| 496555 | Oct 30, 2000 | Oct 30, 2000 | Valence Operating Company | Upshur | Parrish Gas Unit #2 | 12,600 | 45930741 |
| 501126 | Oct 27, 2000 | Oct 27, 2000 | Valence Operating Company | Rusk | Hedge Gas Unit "A" #3 | 11,000 | 40133043 |
| 499457 | Sep 14, 2000 | Sep 14, 2000 | Valence Operating Company | Freestone | Manahan "A" #2 | 12,700 | 16131879 |
| 497727 | Sep 11, 2000 | Sep 11, 2000 | Valence Operating Company | Rusk | Senesac, Nolan #3 | 10,800 | 40133019 |
| 497727Amendment | Sep 11, 2000 | Sep 11, 2000 | Valence Operating Company | Rusk | Senesac, Nolan #3 | 10,800 | 40133019 |
| 498946 | Sep 1, 2000 | Sep 1, 2000 | Valence Operating Company | Harrison | Garrett "E" #6 | 10,000 | 20332643 |
| 498945 | Sep 1, 2000 | Sep 1, 2000 | Valence Operating Company | Harrison | Garrett "E" #8 | 10,000 | 20332642 |
| 497726 | Aug 1, 2000 | Aug 1, 2000 | Valence Operating Company | Rusk | Senesac, Nolan #2 | 10,800 | 40133018 |
| 497512 | Jul 27, 2000 | Jul 27, 2000 | Valence Operating Company | Limestone | Wilson "V" #4 | 10,500 | 29331346 |
| 497256 | Jul 20, 2000 | Jul 20, 2000 | Valence Operating Company | Harrison | Mobley Gas Unit #8 | 10,400 | 20332632 |
| 496812 | Jul 17, 2000 | Jul 17, 2000 | Valence Operating Company | Leon | Ellis "B" #3 | 9,800 | 28931328 |
| 496865 | Jul 7, 2000 | Jul 7, 2000 | Valence Operating Company | Limestone | Wilson "V" #3 | 10,500 | 29331339 |
| 493868 | Jun 30, 2000 | Jun 30, 2000 | Valence Operating Company | Hopkins | Coker, W. H. #5 | 13,400 | 22300407 |
| 496149 | Jun 19, 2000 | Jun 19, 2000 | Valence Operating Company | Harrison | Mobley Gas Unit #6 | 10,400 | 20332627 |
| 496151 | Jun 16, 2000 | Jun 16, 2000 | Valence Operating Company | Harrison | Mobley Gas Unit #7 | 10,400 | 20332626 |
| 495958 | Jun 13, 2000 | Jun 13, 2000 | Valence Operating Company | Harrison | Alice Snider Gas Unit #2 | 10,200 | 20332623 |
| 495821 | Jun 8, 2000 | Jun 8, 2000 | Valence Operating Company | Rusk | Holcomb "C" #9 | 11,100 | 40133005 |
| 495299 | Jun 8, 2000 | Jun 8, 2000 | Valence Operating Company | Freestone | York, B. P. #4 | 12,700 | 16131780 |
| 495387 | May 30, 2000 | May 30, 2000 | Valence Operating Company | Leon | Lewis "B" #2 | 10,000 | 28931326 |
| 495070 | May 19, 2000 | May 19, 2000 | Valence Operating Company | Harrison | Thelma Mosley Gas Unit #3 | 10,500 | 20332616 |
| 493442 | May 4, 2000 | May 4, 2000 | Valence Operating Company | Leon | Campbell Gas Unit #4 | 9,800 | 28931320 |
| 494221 | Apr 21, 2000 | Apr 21, 2000 | Valence Operating Company | Freestone | York, B. P. #5 | 12,700 | 16131754 |
| 492586 | Apr 4, 2000 | Apr 4, 2000 | Valence Operating Company | Leon | Gillen, Ira #2 | 9,800 | 28931318 |
| 493076 | Mar 23, 2000 | Mar 23, 2000 | Valence Operating Company | Leon | Ellis "8" #2 | 9,800 | 28931319 |
| 492977 | Mar 16, 2000 | Mar 16, 2000 | Valence Operating Company | Rusk | Ballow Estate Gas Unit #5 | 11,000 | 40132988 |
| 492976 | Mar 16, 2000 | Mar 16, 2000 | Valence Operating Company | Rusk | Ballow Estate Gas Unit #6 | 11,000 | 40132989 |
| 492975 | Mar 16, 2000 | Mar 16, 2000 | Valence Operating Company | Rusk | Ballow Estate Gas Unit #7 | 11,000 | 40132990 |
| 492974 | Mar 16, 2000 | Mar 16, 2000 | Valence Operating Company | Rusk | Ballow Estate Gas Unit #8 | 11,000 | 40132991 |
| 492779 | Mar 8, 2000 | Mar 8, 2000 | Valence Operating Company | Limestone | Sims, Collie #3 | 8,250 | 29331258 |
| 492779Amendment | Mar 8, 2000 | Mar 8, 2000 | Valence Operating Company | Limestone | Sims, Collie #3 | 6,800 | 29331258 |
| 492778 | Mar 8, 2000 | Mar 8, 2000 | Valence Operating Company | Limestone | Sims, Collie #2 | 8,250 | 29331255 |
| 491184 | Jan 25, 2000 | Jan 25, 2000 | Valence Operating Company | Harrison | Thelma Mosley Gas Unit #2 | 10,500 | 20332589 |
| 490349 | Dec 20, 1999 | Dec 20, 1999 | Valence Operating Company | Rusk | Holcomb "C" #8 | 11,100 | 40132976 |
| 490349Amendment | Dec 20, 1999 | Dec 20, 1999 | Valence Operating Company | Rusk | Holcomb "C" #8 | 11,100 | 40132976 |
| 488718 | Oct 25, 1999 | Oct 25, 1999 | Valence Operating Company | Harrison | Mobley Gas Unit #5 | 10,400 | 20332576 |
| 488718Amendment | Oct 25, 1999 | Oct 25, 1999 | Valence Operating Company | Harrison | Mobley Gas Unit #5 | 10,400 | 20332576 |
| 488510 | Oct 19, 1999 | Oct 19, 1999 | Valence Operating Company | Harrison | Mobley Gas Unit #4 | 10,400 | 20332575 |
| 488509 | Oct 18, 1999 | Oct 18, 1999 | Valence Operating Company | Freestone | Whatley "B" #1 | 11,100 | 16130826 |
| 487575 | Sep 15, 1999 | Sep 15, 1999 | Valence Operating Company | Houston | Taylor, Madge Colburn #2 | 10,000 | 22530966 |
| 487575Amendment | Sep 15, 1999 | Sep 15, 1999 | Valence Operating Company | Houston | Taylor, Madge Colburn #2 | 10,000 | 22530966 |
| 487079 | Aug 31, 1999 | Aug 31, 1999 | Valence Operating Company | Hopkins | Ames-Antrim #1 | 13,700 | 22330469 |
| 486948 | Aug 27, 1999 | Aug 27, 1999 | Valence Operating Company | Harrison | Mobley Gas Unit #3 | 10,400 | 20332568 |
| 486839 | Aug 20, 1999 | Aug 20, 1999 | Valence Operating Company | Rains | W. Yantis Gas Unit 2 #3 | 13,400 | 37930153 |
| 486137 | Jul 30, 1999 | Jul 30, 1999 | Valence Operating Company | Leon | Gillen, Ira #1 | 9,700 | 28931301 |
| 484902 | Jun 21, 1999 | Jun 21, 1999 | Valence Operating Company | Freestone | Boyd "B" #1 | 11,200 | 16130119 |
| 485283 | Jun 17, 1999 | Jun 17, 1999 | Valence Operating Company | Limestone | Schultz "E" #8 | 11,200 | 29331302 |
| 484655 | May 20, 1999 | May 20, 1999 | Valence Operating Company | Limestone | Schultz "E" #7 | 8,950 | 29331299 |
| 482506 | Feb 9, 1999 | Feb 9, 1999 | Valence Operating Company | Limestone | Schultz "E" #5 | 11,200 | 29331262 |
| 481149 | Dec 1, 1998 | Dec 1, 1998 | Valence Operating Company | Freestone | Boyd "A" #3 | 12,350 | 16131546 |
| 479832 | Nov 4, 1998 | Nov 4, 1998 | Valence Operating Company | Leon | Campbell Gas Unit #3 | 10,400 | 28931293 |
| 480387 | Oct 22, 1998 | Oct 22, 1998 | Valence Operating Company | Houston | Navarro Crossing Gas Unit 11 #2 | 10,750 | 22530962 |
| 480387Amendment | Oct 22, 1998 | Oct 22, 1998 | Valence Operating Company | Houston | Navarro Crossing Gas Unit 11 #2 | 10,550 | 22530962 |
| 478832 | Aug 19, 1998 | Aug 19, 1998 | Valence Operating Company | Limestone | Wilson "V" #2 | 10,400 | 29331253 |
| 478512 | Aug 5, 1998 | Aug 5, 1998 | Valence Operating Company | Hopkins | Rayford F. Stinson Unit #3 | 14,000 | 22300587 |
| 478512Amendment | Aug 5, 1998 | Aug 5, 1998 | Valence Operating Company | Hopkins | Rayford F. Stinson Unit #3 | 14,000 | 22300587 |
| 477726 | Jul 6, 1998 | Jul 6, 1998 | Valence Operating Company | Rusk | Holcomb "C" #7 | 11,100 | 40132882 |
| 477725 | Jul 6, 1998 | Jul 6, 1998 | Valence Operating Company | Rusk | Holcomb "C" #6 | 11,100 | 40132881 |
| 477725Amendment | Jul 6, 1998 | Jul 6, 1998 | Valence Operating Company | Rusk | Holcomb "C" #6 | 11,100 | 40132881 |
| 477725Amendment | Jul 6, 1998 | Jul 6, 1998 | Valence Operating Company | Rusk | Holcomb "C" #6 | 11,100 | 40132881 |
| 477436 | Jun 25, 1998 | Jun 25, 1998 | Valence Operating Company | Limestone | Schultz "E" #6 | 7,700 | 29331276 |