| 534744Amendment | Jul 29, 2003 | Jul 29, 2003 | Ergon Energy Partners, L.P. | Grammer #1H | 13,700 | 45730562 |
| 534744Amendment | Jul 29, 2003 | Jul 29, 2003 | Ergon Energy Partners, L.P. | Grammer #1H | 13,700 | 45730562 |
| 533147 | Jun 30, 2003 | Jun 30, 2003 | American Coastal Energy, Inc. | Arco Fee #5 | 8,880 | 45730468 |
| 529036 | Jun 16, 2003 | Jun 16, 2003 | Ergon Energy Partners, L.P. | L. B. Hanks et Al #1HH | 13,200 | 45730546 |
| 529036Amendment | Jun 16, 2003 | Jun 16, 2003 | Ergon Energy Partners, L.P. | Hanks, L.B. et Al #1HH | 13,200 | 45730546 |
| 532026 | May 16, 2003 | May 16, 2003 | Blue Ridge Group, Inc. | Arco-Beathard #3 | 10,500 | 45730550 |
| 532023 | May 16, 2003 | May 16, 2003 | American Coastal Energy, Inc. | Kirby #1UT | 9,909 | 45730453 |
| 532023Amendment | May 16, 2003 | May 16, 2003 | American Coastal Energy, Inc. | Kirby #1UT | 9,909 | 45730453 |
| 531233 | Apr 28, 2003 | Apr 28, 2003 | Ergon Energy Partners, L.P. | Long-Bell #1H | 13,800 | 45730561 |
| 531233Amendment | Apr 28, 2003 | Apr 28, 2003 | Ergon Energy Partners, L.P. | Long-Bell #1H | 13,800 | 45730561 |
| 529634 | Mar 14, 2003 | Mar 14, 2003 | Blue Ridge Group, Inc. | Little-Arco #1 | 10,500 | 45730560 |
| 529634Amendment | Mar 14, 2003 | Mar 14, 2003 | Blue Ridge Group, Inc. | Little-Arco #1 | 10,050 | 45730560 |
| 528711 | Feb 20, 2003 | Feb 20, 2003 | Ergon Energy Partners, L.P. | Stall #1H | 13,700 | 45730559 |
| 528711Amendment | Feb 20, 2003 | Feb 20, 2003 | Ergon Energy Partners, L.P. | Stall #1H | 13,700 | 45730559 |
| 526406 | Dec 19, 2002 | Dec 19, 2002 | Quail Creek Oil Corporation | Atlantic-Sinclair Fee #8 | 5,382 | 45730009 |
| 526040 | Dec 3, 2002 | Dec 3, 2002 | Ergon Energy Partners, L.P. | Texana Shepherd #1H | 13,700 | 45730558 |
| 526040Amendment | Dec 3, 2002 | Dec 3, 2002 | Ergon Energy Partners, L.P. | Texana Shepherd #1H | 13,700 | 45730558 |
| 525435 | Nov 15, 2002 | Nov 15, 2002 | Blue Ridge Group, Inc. | Arco Fee #1R | 9,800 | 45730557 |
| 525191 | Nov 4, 2002 | Nov 4, 2002 | Chesapeake Operating, Inc. | Blackstone #1HH | 15,000 | 45730524 |
| 524280 | Oct 4, 2002 | Oct 4, 2002 | Brammer Engineering, Inc. | Rice University #1 | 10,000 | 45730556 |
| 524030 | Sep 25, 2002 | Sep 25, 2002 | Blue Ridge Group, Inc. | Arco-Beathard #4 | 11,000 | 45730555 |
| 524030Amendment | Sep 25, 2002 | Sep 25, 2002 | Blue Ridge Group, Inc. | Arco-Beathard #4 | 11,000 | 45730555 |
| 522033 | Sep 19, 2002 | Sep 19, 2002 | Ergon Energy Partners, L.P. | Pure Resources #1H | 14,500 | 45730551 |
| 522033Amendment | Sep 19, 2002 | Sep 19, 2002 | Ergon Energy Partners, L.P. | Pure Resources #1H | 14,500 | 45730551 |
| 523710 | Sep 16, 2002 | Sep 16, 2002 | Blue Ridge Group, Inc. | Arco-Beathard #5 | 11,000 | 45730554 |
| 523302 | Aug 30, 2002 | Aug 30, 2002 | Blue Ridge Group, Inc. | Arco-Fee #A 1 | 10,000 | 45730553 |
| 522163 | Jul 24, 2002 | Jul 24, 2002 | Ergon Energy Partners, L.P. | Sutton #1H | 14,000 | 45730552 |
| 522163Amendment | Jul 24, 2002 | Jul 24, 2002 | Ergon Energy Partners, L.P. | Sutton #1H | 14,000 | 45730552 |
| 519738 | May 6, 2002 | May 6, 2002 | Blue Ridge Group, Inc. | Arco-Beathard #3 | 10,500 | 45730550 |
| 519333 | Apr 22, 2002 | Apr 22, 2002 | Ergon Energy Partners, L.P. | Reid-Obrien #1 | 14,000 | 45730549 |
| 519333Amendment | Apr 22, 2002 | Apr 22, 2002 | Ergon Energy Partners, L.P. | Reid-O'Brien #1H | 14,000 | 45730549 |
| 519333Amendment | Apr 22, 2002 | Apr 22, 2002 | Ergon Energy Partners, L.P. | Reid-O'Brien #1H | 14,000 | 45730549 |
| 518911 | Apr 10, 2002 | Apr 10, 2002 | Encore Energy, Inc. | Blackstone #1 | 5,500 | 45730548 |
| 518881 | Apr 8, 2002 | Apr 8, 2002 | Blue Ridge Group, Inc. | Arco-Beathard #2 | 10,500 | 45730547 |
| 505771Amendment | Mar 25, 2002 | Mar 25, 2002 | Ergon Energy Partners, L.P. | Nash et Al #1H | 14,500 | 45730537 |
| 517429 | Feb 13, 2002 | Feb 13, 2002 | Premium Exploration Company | Arco Sterne Fee #1 | 7,345 | 45730061 |
| 517072 | Jan 24, 2002 | Jan 24, 2002 | Petra Oleum Corp. | Rice Institute #1 | 8,850 | 45730290 |
| 516460 | Dec 27, 2001 | Dec 27, 2001 | Ergon Energy Partners, L.P. | Hanks, L. B. et Al #1 | 13,700 | 45730546 |
| 516460Amendment | Dec 27, 2001 | Dec 27, 2001 | Ergon Energy Partners, L.P. | Hanks, L. B. et Al #1 | 13,700 | 45730546 |
| 515642 | Nov 27, 2001 | Nov 27, 2001 | Blue Ridge Group, Inc. | Arco-Beathard #1 | 10,600 | 45730545 |
| 514877 | Nov 5, 2001 | Nov 5, 2001 | Jay Management Company, LLC | Read #1 | 9,900 | 45730544 |
| 514877Amendment | Nov 5, 2001 | Nov 5, 2001 | Jay Management Company, LLC | Read #1 | 9,900 | 45730544 |
| 514481 | Oct 16, 2001 | Oct 16, 2001 | Black Stone Energy Company | Fairchild, et Al #1 | 11,900 | 45730543 |
| 512825 | Aug 21, 2001 | Aug 21, 2001 | Ergon Energy Partners, L.P. | Mouton et Al #1 | 14,000 | 45730542 |
| 512825Amendment | Aug 21, 2001 | Aug 21, 2001 | Ergon Energy Partners, L.P. | Mouton et Al #1H | 14,000 | 45730542 |
| 512825Amendment | Aug 21, 2001 | Aug 21, 2001 | Ergon Energy Partners, L.P. | Mouton et Al #1H | 14,000 | 45730542 |
| 512673 | Aug 16, 2001 | Aug 16, 2001 | Sanchez Oil & Gas Corporation | Vastar Resources, Inc. #1 | 10,800 | 45730541 |
| 511217 | Jul 9, 2001 | Jul 9, 2001 | Ergon Energy Partners, L.P. | Shepherd et Al #2H | 13,000 | 45730540 |
| 511217Amendment | Jul 9, 2001 | Jul 9, 2001 | Ergon Energy Partners, L.P. | Shepherd et Al #2H | 13,000 | 45730540 |
| 509290 | May 22, 2001 | May 22, 2001 | Ergon Energy Partners, L.P. | Shepherd et Al #1 | 13,600 | 45730539 |
| 509290Amendment | May 22, 2001 | May 22, 2001 | Ergon Energy Partners, L.P. | Shepherd et Al #1 | 13,600 | 45730539 |
| 507121 | Apr 17, 2001 | Apr 17, 2001 | Quail Creek Oil Corporation | A.r.&s. Drakes Branch Fee #1 | 5,128 | 45700430 |
| 507581 | Apr 9, 2001 | Apr 9, 2001 | Blue Ridge Group, Inc. | Arco #1 | 9,800 | 45730538 |
| 506305 | Mar 9, 2001 | Mar 9, 2001 | Roberson Oil Company | Arco "B" #4 | 8,990 | 45730467 |
| 505771 | Feb 23, 2001 | Feb 23, 2001 | Ergon Exploration, Inc. | Nash et Al #1 | 14,500 | 45730537 |
| 505771Amendment | Feb 23, 2001 | Feb 23, 2001 | Ergon Energy Partners, L.P. | Nash et Al #1H | 14,500 | 45730537 |
| 505712 | Feb 22, 2001 | Feb 22, 2001 | Comstock Oil & Gas, Inc. | Vastar Fee/Abbott #1 | 11,500 | 45730536 |
| 505588 | Feb 21, 2001 | Feb 21, 2001 | Gordy Oil Company | Howell #1 | 7,900 | 45730535 |
| 505588Amendment | Feb 21, 2001 | Feb 21, 2001 | Gordy Oil Company | Howell #1 | 8,300 | 45730535 |
| 505193 | Feb 15, 2001 | Feb 15, 2001 | Quail Creek Oil Corporation | Atlantic-Sinclair Fee #8 | 5,420 | 45730009 |
| 503321 | Dec 20, 2000 | Dec 20, 2000 | Ergon Exploration, Inc. | Clements, Hally et Al #1 | 14,000 | 45730534 |
| 503321Amendment | Dec 20, 2000 | Dec 20, 2000 | Ergon Exploration, Inc. | Clements, Hally et Al #1H | 13,200 | 45730534 |
| 503321Amendment | Dec 20, 2000 | Dec 20, 2000 | Ergon Exploration, Inc. | Clements, Hally et Al #1H | 13,200 | 45730534 |
| 502773 | Dec 7, 2000 | Dec 7, 2000 | Comstock Oil & Gas, Inc. | Mooney #1 | 11,500 | 45730533 |
| 502773Amendment | Dec 7, 2000 | Dec 7, 2000 | Comstock Oil & Gas, Inc. | Mooney #1 | 11,500 | 45730533 |
| 502669 | Dec 5, 2000 | Dec 5, 2000 | Suemaur Expl. & Prod., LLC | Aycock-Vastar Unit #1 | 15,000 | 45730532 |
| 502446 | Nov 29, 2000 | Nov 29, 2000 | Comstock Oil & Gas, Inc. | Black Stone Minerals Co., L. P. #1 | 14,400 | 45730531 |
| 502446Amendment | Nov 29, 2000 | Nov 29, 2000 | Comstock Oil & Gas, Inc. | Black Stone Minerals Co., L. P. #1 | 14,065 | 45730531 |
| 501000 | Oct 20, 2000 | Oct 20, 2000 | Black Stone Energy Company | Black Stone Minerals "NCN" #3 | 15,200 | 45730530 |
| 500909 | Oct 17, 2000 | Oct 17, 2000 | Comstock Oil & Gas, Inc. | Sutton #1 | 11,600 | 45730529 |
| 500909Amendment | Oct 17, 2000 | Oct 17, 2000 | Comstock Oil & Gas, Inc. | Sutton #1 | 11,385 | 45730529 |
| 500455 | Oct 5, 2000 | Oct 5, 2000 | Exxon Mobil Corporation | Jacks Creek OU 3 #1 | 8,116 | 45730448 |
| 499881 | Sep 21, 2000 | Sep 21, 2000 | Roberson Oil Company | Arco Fee #5 | 8,880 | 45730468 |
| 497412 | Jul 25, 2000 | Jul 25, 2000 | Premium Exploration Company | Arco Sterne Fee #1 | 7,345 | 45730061 |
| 497365 | Jul 19, 2000 | Jul 19, 2000 | Roberson Oil Company | Arco Fee #2 | 8,845 | 45730457 |
| 497122 | Jul 12, 2000 | Jul 12, 2000 | B.W.O.C., Inc. | M. J. Stocker Gas Unit #1HH | 14,500 | 45730520 |
| 496433 | Jun 22, 2000 | Jun 22, 2000 | Famcor Oil, Inc | Pattison, E. W. #2 | 11,414 | 45730351 |
| 495569 | Jun 1, 2000 | Jun 1, 2000 | Black Stone Energy Company | Black Stone Minerals "NC" #2 | 15,400 | 45730528 |
| 492900 | Mar 9, 2000 | Mar 9, 2000 | Ergon Exploration, Inc. | Gardner et Al #1 | 13,500 | 45730527 |
| 492900Amendment | Mar 9, 2000 | Mar 9, 2000 | Ergon Exploration, Inc. | Gardner et Al #1H | 13,000 | 45730527 |
| 492900Amendment | Mar 9, 2000 | Mar 9, 2000 | Ergon Exploration, Inc. | Gardner et Al #1H | 13,000 | 45730527 |
| 492362 | Feb 23, 2000 | Feb 23, 2000 | Southern Resource Company | Vastar-Drake #1 | 10,900 | 45730526 |
| 491543 | Feb 1, 2000 | Feb 1, 2000 | Pringle Resources, Inc. | Wells, J. T. #2 | 10,800 | 45730525 |
| 489323 | Nov 10, 1999 | Nov 10, 1999 | Pecos Petroleum Company | Arco Fee #3 | 11,000 | 45730466 |
| 489020 | Nov 8, 1999 | Nov 8, 1999 | Black Stone Energy Company | Black Stone Minerals "WB" #1 | 15,400 | 45730524 |
| 486379 | Aug 13, 1999 | Aug 13, 1999 | Premium Exploration Company | Arco Hooks Unit #1 | 5,318 | 45730091 |
| 483056 | Mar 3, 1999 | Mar 3, 1999 | Southern Resource Company | Vastar #2 | 10,800 | 45730523 |
| 480324 | Oct 20, 1998 | Oct 20, 1998 | Willow Creek Resources, Inc. | Lizzie #1 | 16,000 | 45730522 |
| 480260 | Oct 19, 1998 | Oct 19, 1998 | Southern Resource Company | Vastar #1 | 10,450 | 45730521 |
| 480260Amendment | Oct 19, 1998 | Oct 19, 1998 | Southern Resource Company | Vastar #1 | 10,450 | 45730521 |
| 479625 | Sep 23, 1998 | Sep 23, 1998 | Amoco Production Company | Margaret Jacoway Stocker Gas UT #1 | 15,000 | 45730520 |
| 476640 | Jun 24, 1998 | Jun 24, 1998 | Premium Exploration Company | Arco Sterne Fee #5 | 5,900 | 45700263 |
| 476639 | Jun 4, 1998 | Jun 4, 1998 | Premium Exploration Company | Arco Hooks Unit #2 | 5,900 | 45700339 |
| 476033 | May 20, 1998 | May 20, 1998 | Pecos Petroleum Company | Arco Fee #1 | 8,900 | 45730452 |
| 476149 | May 13, 1998 | May 13, 1998 | Pecos Petroleum Company | Arco Fee #2 | 8,950 | 45730457 |
| 476032 | May 11, 1998 | May 11, 1998 | Pecos Petroleum Company | Kirby #4 | 8,900 | 45730488 |
| 475637 | May 4, 1998 | May 4, 1998 | Premium Exploration Company | Arco Sterne Fee #1 | 7,345 | 45730061 |
| 475405 | Apr 17, 1998 | Apr 17, 1998 | Chesapeake Operating, Inc. | Evans SWD #1 | 3,700 | 45730519 |
| 474338 | Mar 13, 1998 | Mar 13, 1998 | Chesapeake Operating, Inc. | Quinn #1HH | 16,368 | 45730518 |
| 474338Amendment | Mar 13, 1998 | Mar 13, 1998 | Chesapeake Operating, Inc. | Quinn Unit #1HH | 16,500 | 45730518 |