| 623901 | Aug 7, 2006 | Aug 7, 2006 | Petrohawk Operating Company | C.E. Heard "B" #2502533420 | 5,500 |
| 623901Amendment | Aug 7, 2006 | Aug 7, 2006 | Petrohawk Operating Company | Heard, C. E. "B" #2502533420 | 5,500 |
| 623804 | Aug 3, 2006 | Aug 3, 2006 | Jennings Exploration Company | Normanna Townsite Unit II #202533419 | 3,800 |
| 623461 | Jul 31, 2006 | Jul 31, 2006 | Welder Exploration & Prod., Inc. | O'Brien Ranch #1C02533417 | 5,000 |
| 623457 | Jul 31, 2006 | Jul 31, 2006 | Welder Exploration & Prod., Inc. | O'Brien Ranch #1A02533418 | 5,000 |
| 622965 | Jul 28, 2006 | Jul 28, 2006 | Enco Exploration Company | Collier G. U. #1002502526 | 11,000 |
| 623164 | Jul 25, 2006 | Jul 25, 2006 | Welder Exploration & Prod., Inc. | O'Brien Ranch #1B02533416 | 5,000 |
| 622996 | Jul 24, 2006 | Jul 24, 2006 | Britanco, L.L.C. | Goree, Audrey C. #1C02531159 | 11,210 |
| 622653 | Jul 19, 2006 | Jul 19, 2006 | Tidal Petroleum, Inc. | Elliott #102533415 | 10,000 |
| 622283 | Jul 13, 2006 | Jul 13, 2006 | United Resources LP | Knight Ranch #102533414 | 11,000 |
| 622412 | Jul 12, 2006 | Jul 12, 2006 | Hughes, Dan A. Company, L.P. | Green, Helen #102533413 | 12,000 |
| 622412Amendment | Jul 12, 2006 | Jul 12, 2006 | Hughes, Dan A. Company, L.P. | Green, Helen #102533413 | 12,000 |
| 621648 | Jul 3, 2006 | Jul 3, 2006 | Dewbre Petroleum Corporation | Goree #102533411 | 9,000 |
| 621855 | Jun 30, 2006 | Jun 30, 2006 | Enduring Resources, LLC | Flame #1H02533412 | 13,080 |
| 621563 | Jun 29, 2006 | Jun 29, 2006 | Legend Natural Gas II, LP | Ray, George A. #10402533125 | 9,000 |
| 621377 | Jun 27, 2006 | Jun 27, 2006 | Bridwell Oil Co. | Murphy, John -A- #7R02533410 | 3,400 |
| 620925 | Jun 16, 2006 | Jun 16, 2006 | Bridwell Oil Co. | Murphy, John #1502533409 | 3,400 |
| 620924 | Jun 16, 2006 | Jun 16, 2006 | Bridwell Oil Co. | Murphy, Willie #1102533408 | 3,400 |
| 620816 | Jun 16, 2006 | Jun 16, 2006 | Enco Exploration Company | Collier #802532072 | 2,000 |
| 620444 | Jun 16, 2006 | Jun 16, 2006 | Legend Natural Gas II, LP | Ray, George A. #99D02533032 | 9,000 |
| 620746 | Jun 15, 2006 | Jun 15, 2006 | West Tuleta Operating Corp. | Wtu Stauss #202533406 | 10,500 |
| 620987 | Jun 14, 2006 | Jun 14, 2006 | Petrohawk Operating Company | Heard, C.E. "B" #2402533407 | 5,500 |
| 620987Amendment | Jun 14, 2006 | Jun 14, 2006 | Petrohawk Operating Company | Heard, C.E. "B" #2402533407 | 5,500 |
| 620745 | Jun 12, 2006 | Jun 12, 2006 | Petrohawk Operating Company | Heard, C.E. "B" #2702533405 | 5,500 |
| 620744 | Jun 12, 2006 | Jun 12, 2006 | Petrohawk Operating Company | Heard, C.E. "B" #2602533404 | 5,500 |
| 620743 | Jun 12, 2006 | Jun 12, 2006 | Petrohawk Operating Company | Heard, C.E. "B" #2302533403 | 5,500 |
| 619684 | May 31, 2006 | May 31, 2006 | Pioneer Natural Res. USA, Inc. | Tomasek Gas Unit #1H02500473 | 17,000 |
| 619486 | May 18, 2006 | May 18, 2006 | Tidal Petroleum, Inc. | Shelton #102533402 | 8,500 |
| 619062 | May 17, 2006 | May 17, 2006 | Tidal Petroleum, Inc. | Grissom Unit #402533401 | 10,500 |
| 619062Amendment | May 17, 2006 | May 17, 2006 | Tidal Petroleum, Inc. | Grissom Unit #402533401 | 10,500 |
| 618355 | May 9, 2006 | May 9, 2006 | West Tuleta Operating Corp. | Wtu Robinson #602533384 | 8,703 |
| 618314 | May 3, 2006 | May 3, 2006 | Pioneer Natural Res. USA, Inc. | Turner Gas Unit #7H02533246 | 17,000 |
| 618550 | May 2, 2006 | May 2, 2006 | Hughes, Dan A. Company, L.P. | Helm-Arburn Unit #1ST02533304 | 12,000 |
| 618409 | Apr 28, 2006 | Apr 28, 2006 | Anderson Oil Ltd | Eberstadt #702533400 | 5,900 |
| 617185 | Apr 11, 2006 | Apr 11, 2006 | Welder Exploration & Prod., Inc. | Breidenbach-Welder Unit #102533398 | 6,500 |
| 617182 | Apr 11, 2006 | Apr 11, 2006 | Welder Exploration & Prod., Inc. | Welder #1D02533397 | 6,500 |
| 617180 | Apr 11, 2006 | Apr 11, 2006 | Welder Exploration & Prod., Inc. | Breidenbach #102533396 | 6,500 |
| 617172 | Apr 11, 2006 | Apr 11, 2006 | Enco Exploration Company | Collier #702533399 | 6,000 |
| 617172Amendment | Apr 11, 2006 | Apr 11, 2006 | Enco Exploration Company | Collier #702533399 | 6,000 |
| 616222 | Apr 11, 2006 | Apr 11, 2006 | Riddle Engineering Corp. | Blackburn #202533216 | 2,700 |
| 617070 | Apr 5, 2006 | Apr 5, 2006 | Hughes, Dan A. Company | Keller Unit #202533395 | 12,500 |
| 615964 | Mar 28, 2006 | Mar 28, 2006 | Pioneer Natural Res. USA, Inc. | Hoyt Gentry Gas Unit #202533394 | 17,000 |
| 615600 | Mar 15, 2006 | Mar 15, 2006 | Legend Natural Gas II, LP | Npu (Ray 106) #41 C02533239 | 11,600 |
| 615438 | Mar 15, 2006 | Mar 15, 2006 | Welder Exploration & Prod., Inc. | Wicker B #702533393 | 6,500 |
| 615437 | Mar 15, 2006 | Mar 15, 2006 | Welder Exploration & Prod., Inc. | Wicker A #602533392 | 6,500 |
| 615671 | Mar 14, 2006 | Mar 14, 2006 | Wagner Oil Company | Walton-Ray Wilcox Unit #102502885 | 8,346 |
| 615590 | Mar 10, 2006 | Mar 10, 2006 | Anderson Oil Ltd | Wolters #102533391 | 8,600 |
| 615323 | Mar 7, 2006 | Mar 7, 2006 | Modern Exploration, Inc. | Shinn #102533390 | 4,600 |
| 615012 | Mar 7, 2006 | Mar 7, 2006 | Enco Exploration Company | Bear Creek #102533389 | 6,000 |
| 614728 | Feb 27, 2006 | Feb 27, 2006 | Welder Exploration & Prod., Inc. | Welder #1F02533388 | 7,000 |
| 614103 | Feb 22, 2006 | Feb 22, 2006 | Pioneer Natural Res. USA, Inc. | Schroeder #402533346 | 13,912 |
| 614026 | Feb 22, 2006 | Feb 22, 2006 | Legend Natural Gas II, LP | Npu (Ray 109) #4402533386 | 10,500 |
| 613870 | Feb 21, 2006 | Feb 21, 2006 | Legend Natural Gas II, LP | Ray, George A. #99 F02533032 | 9,000 |
| 613311 | Jan 31, 2006 | Jan 31, 2006 | Hughes, Dan A. Company | Chandler #102533385 | 12,500 |
| 612497 | Jan 17, 2006 | Jan 17, 2006 | West Tuleta Operating Corp. | Wtu Robinson #602533384 | 9,000 |
| 611361 | Dec 28, 2005 | Dec 28, 2005 | Pioneer Natural Res. USA, Inc. | Henry Bues Gas Unit #15H02533383 | 17,000 |
| 611262 | Dec 27, 2005 | Dec 27, 2005 | Welder Exploration & Prod., Inc. | Heard, C. E. #1A02533382 | 9,000 |
| 611126 | Dec 20, 2005 | Dec 20, 2005 | Enco Exploration Company | Collier #602533381 | 6,000 |
| 611120 | Dec 16, 2005 | Dec 16, 2005 | Tidal Petroleum, Inc. | Dugat #102533379 | 10,200 |
| 611120Amendment | Dec 16, 2005 | Dec 16, 2005 | Tidal Petroleum, Inc. | Dugat #102533379 | 5,206 |
| 611120Amendment | Dec 16, 2005 | Dec 16, 2005 | Tidal Petroleum, Inc. | Dugat #102533379 | 10,200 |
| 611059 | Dec 16, 2005 | Dec 16, 2005 | Welder Exploration & Prod., Inc. | Wicker #502533380 | 7,000 |
| 610630 | Dec 14, 2005 | Dec 14, 2005 | Inland Ocean, Inc. | Mutchler-Roth Unit #202533377 | 4,500 |
| 610460 | Dec 14, 2005 | Dec 14, 2005 | Enco Exploration Company | Bowden Unit #102533378 | 5,000 |
| 610904 | Dec 13, 2005 | Dec 13, 2005 | Kaler Energy Corp | Holzmark #B 102533376 | 9,500 |
| 610770 | Dec 9, 2005 | Dec 9, 2005 | Hughes, Dan A. Company | Charco Ranch #102533375 | 4,700 |
| 610679 | Dec 7, 2005 | Dec 7, 2005 | Hughes, Dan A. Company | Helm - Arburn Unit #202533374 | 12,500 |
| 610452 | Dec 7, 2005 | Dec 7, 2005 | LMP Exploration Operating, LLC | Martin Unit #202533373 | 10,500 |
| 609594 | Nov 16, 2005 | Nov 16, 2005 | Hughes, Dan A. Company | McKinney-Johnston #102533372 | 5,000 |
| 608908 | Nov 7, 2005 | Nov 7, 2005 | Pioneer Natural Res. USA, Inc. | O'Neal Gas Unit #12H02533371 | 17,000 |
| 608882 | Nov 3, 2005 | Nov 3, 2005 | Kaler Energy Corp | Carpenter #202533370 | 10,000 |
| 608605 | Nov 1, 2005 | Nov 1, 2005 | Braman, D. H., Jr. | Bowman #102533369 | 5,000 |
| 608349 | Oct 31, 2005 | Oct 31, 2005 | Reh Energy, Inc. | Bunch, Donald #102533368 | 2,100 |
| 608466 | Oct 26, 2005 | Oct 26, 2005 | Crawford Energy Operating Co | Carlson-Danforth #1H02533367 | 13,700 |
| 608422 | Oct 26, 2005 | Oct 26, 2005 | Anderson Oil Ltd | Eberstadt #602533366 | 5,900 |
| 605355 | Oct 18, 2005 | Oct 18, 2005 | Pioneer Natural Res. USA, Inc. | Gordon Gas Unit #9H02533357 | 17,000 |
| 607906 | Oct 14, 2005 | Oct 14, 2005 | Modern Exploration, Inc. | Staples #102533365 | 9,350 |
| 607906Amendment | Oct 14, 2005 | Oct 14, 2005 | Modern Exploration, Inc. | Staples #102533365 | 9,500 |
| 607846 | Oct 13, 2005 | Oct 13, 2005 | Petro-Hunt, L.L.C. | Johnston - Dirks #102533364 | 16,500 |
| 607846Amendment | Oct 13, 2005 | Oct 13, 2005 | Petro-Hunt, L.L.C. | Johnston - Dirks #102533364 | 16,500 |
| 607846Amendment | Oct 13, 2005 | Oct 13, 2005 | Petro-Hunt, L.L.C. | Johnston - Dirks Gas Unit #1 #102533364 | 16,068 |
| 607720 | Oct 12, 2005 | Oct 12, 2005 | Hughes, Dan A. Company | Keller #102533363 | 12,500 |
| 606776 | Oct 6, 2005 | Oct 6, 2005 | Gulfstar Properties, Inc. | Spindletop #202533362 | 9,950 |
| 606251 | Sep 14, 2005 | Sep 14, 2005 | Pioneer Natural Res. USA, Inc. | Henry Bues Gas Unit #14H02533361 | 17,000 |
| 606240 | Sep 14, 2005 | Sep 14, 2005 | Pioneer Natural Res. USA, Inc. | Henry Bues Gas Unit #13H02533360 | 17,000 |
| 606235 | Sep 13, 2005 | Sep 13, 2005 | Pioneer Natural Res. USA, Inc. | Turner GU #12H02533359 | 17,000 |
| 604685 | Sep 8, 2005 | Sep 8, 2005 | Dirnett, Inc. | Rapp #402500937 | 3,496 |
| 605793 | Sep 1, 2005 | Sep 1, 2005 | Enco Exploration Company | Long-Culli-McKay Unit #102533358 | 6,000 |
| 605325 | Aug 23, 2005 | Aug 23, 2005 | Hughes, Dan A. Company | Grissom #302533356 | 12,000 |
| 605325Amendment | Aug 23, 2005 | Aug 23, 2005 | Hughes, Dan A. Company | Grissom #302533356 | 12,000 |
| 605325Amendment | Aug 23, 2005 | Aug 23, 2005 | Hughes, Dan A. Company | Grissom #302533356 | 11,000 |
| 605219 | Aug 19, 2005 | Aug 19, 2005 | Hughes, Dan A. Company | Hill-Rose Gas Unit #202533355 | 10,500 |
| 605209 | Aug 19, 2005 | Aug 19, 2005 | Pioneer Natural Res. USA, Inc. | Schroeder Gas Unit #5H02533354 | 17,000 |
| 605006 | Aug 16, 2005 | Aug 16, 2005 | Hughes, Dan A. Company | Mansker-Shell Unit #102533065 | 9,357 |
| 604839 | Aug 11, 2005 | Aug 11, 2005 | Petrohawk Operating Company | Heard, C.E. "B" #2202533353 | 5,500 |
| 604508 | Aug 5, 2005 | Aug 5, 2005 | Morris, W. Dale Inc. | Nichols Gas Unit #1H02533352 | 13,500 |
| 604054 | Jul 28, 2005 | Jul 28, 2005 | Enco Exploration Company | Schauer #102533351 | 4,500 |
| 559327 | Jul 27, 2005 | Jul 27, 2005 | AC Exploration, LLC | McFall Kerby #502533199 | 8,200 |
| 603575 | Jul 20, 2005 | Jul 20, 2005 | Halex Oil Corporation | McFall-Kerby #102532096 | 7,120 |
| 602912 | Jul 7, 2005 | Jul 7, 2005 | Salida Exploration, LLC | Thomson-Barrow #402533350 | 6,000 |