| 682297Amendment | Jun 22, 2009 | Jun 22, 2009 | Chesapeake Operating, Inc. | Urrey #5HH | 9,000 | 25133680 |
| 682262 | Jun 18, 2009 | Jun 18, 2009 | XTO Energy Inc. | Kasal #8HH | 11,000 | 25133679 |
| 682262Amendment | Jun 18, 2009 | Jun 18, 2009 | XTO Energy Inc. | Kasal #8HH | 11,000 | 25133679 |
| 682246 | Jun 17, 2009 | Jun 17, 2009 | XTO Energy Inc. | Kasal Trust Unit #7HH | 11,500 | 25133678 |
| 682246Amendment | Jun 17, 2009 | Jun 17, 2009 | XTO Energy Inc. | Kasal Trust Unit #7HH | 11,500 | 25133678 |
| 682236 | Jun 17, 2009 | Jun 17, 2009 | XTO Energy Inc. | Kasal Trust Unit #9HH | 12,500 | 25133677 |
| 682236Amendment | Jun 17, 2009 | Jun 17, 2009 | XTO Energy Inc. | Kasal Trust Unit #9HH | 12,500 | 25133677 |
| 682227 | Jun 17, 2009 | Jun 17, 2009 | Devon Energy Production Co, L.P. | Clifton, Joe #1HH | 9,000 | 25133676 |
| 682161 | Jun 17, 2009 | Jun 17, 2009 | XTO Energy Inc. | Wadsworth Unit #4HH | 11,000 | 25133675 |
| 682161Amendment | Jun 17, 2009 | Jun 17, 2009 | XTO Energy Inc. | Wadsworth Unit #4HH | 11,000 | 25133675 |
| 680878 | Jun 16, 2009 | Jun 16, 2009 | EOG Resources, Inc. | Ledezma Unit #4HH | 8,900 | 25133640 |
| 680856 | Jun 16, 2009 | Jun 16, 2009 | EOG Resources, Inc. | Ledezma Unit #3HH | 8,900 | 25133638 |
| 680856Amendment | Jun 16, 2009 | Jun 16, 2009 | EOG Resources, Inc. | Ledezma Unit #3HH | 8,900 | 25133638 |
| 680853 | Jun 16, 2009 | Jun 16, 2009 | EOG Resources, Inc. | Ledezma Unit #2HH | 8,900 | 25133637 |
| 680853Amendment | Jun 16, 2009 | Jun 16, 2009 | EOG Resources, Inc. | Ledezma Unit #2HH | 8,900 | 25133637 |
| 681997 | Jun 12, 2009 | Jun 12, 2009 | Triad Exploration, Ltd. | God's Blessing #1HH | 8,500 | 25133674 |
| 681943 | Jun 12, 2009 | Jun 12, 2009 | EOG Resources, Inc. | US Lime #33HH | 8,999 | 25133673 |
| 667377Amendment | Jun 12, 2009 | Jun 12, 2009 | Chesapeake Operating, Inc. | Burleson Elks #5HH | 9,000 | 25133185 |
| 678449Amendment | Jun 11, 2009 | Jun 11, 2009 | XTO Energy Inc. | Summit Unit #1HH | 9,000 | 25133560 |
| 677987Amendment | Jun 11, 2009 | Jun 11, 2009 | XTO Energy Inc. | Gene Estes Winery Unit #1HH | 11,000 | 25133538 |
| 677987Amendment | Jun 11, 2009 | Jun 11, 2009 | XTO Energy Inc. | Gene Estes Winery Unit #1HH | 11,000 | 25133538 |
| 681939 | Jun 9, 2009 | Jun 9, 2009 | EOG Resources, Inc. | US Lime #32HH | 8,999 | 25133672 |
| 681939Amendment | Jun 9, 2009 | Jun 9, 2009 | EOG Resources, Inc. | US Lime #32HH | 8,999 | 25133672 |
| 681937 | Jun 9, 2009 | Jun 9, 2009 | EOG Resources, Inc. | US Lime #31HH | 8,999 | 25133671 |
| 681937Amendment | Jun 9, 2009 | Jun 9, 2009 | EOG Resources, Inc. | US Lime #31HH | 8,999 | 25133671 |
| 681911 | Jun 9, 2009 | Jun 9, 2009 | EOG Resources, Inc. | US Lime #30HH | 8,999 | 25133670 |
| 681911Amendment | Jun 9, 2009 | Jun 9, 2009 | EOG Resources, Inc. | U.S. Lime #30HH | 8,999 | 25133670 |
| 681716 | Jun 8, 2009 | Jun 8, 2009 | Devon Energy Production Co, L.P. | Isbell, Alton #2HH | 9,000 | 25133666 |
| 679557Amendment | Jun 8, 2009 | Jun 8, 2009 | XTO Energy Inc. | Lewis Unit #B 4HH | 11,000 | 25133585 |
| 672354Amendment | Jun 8, 2009 | Jun 8, 2009 | XTO Energy Inc. | Harper Cattle C Unit #11BHH | 14,500 | 25133380 |
| 642397Amendment | Jun 8, 2009 | Jun 8, 2009 | XTO Energy Inc. | Lewis Unit #B 3HH | 11,000 | 25132048 |
| 681791 | Jun 3, 2009 | Jun 3, 2009 | Chesapeake Operating, Inc. | Skaggs #6HH | 9,000 | 25133669 |
| 681767 | Jun 3, 2009 | Jun 3, 2009 | Chesapeake Operating, Inc. | Skaggs #5HH | 9,000 | 25133668 |
| 681737 | Jun 3, 2009 | Jun 3, 2009 | XTO Energy Inc. | Warren Unit #6HH | 10,500 | 25133667 |
| 681737Amendment | Jun 3, 2009 | Jun 3, 2009 | XTO Energy Inc. | Warren Unit #6HH | 10,500 | 25133667 |
| 681737Amendment | Jun 3, 2009 | Jun 3, 2009 | XTO Energy Inc. | Warren Unit #6HH | 10,500 | 25133667 |
| 678743Amendment | Jun 2, 2009 | Jun 2, 2009 | Chesapeake Operating, Inc. | Waddell #1HH | 9,000 | 25133564 |
| 681687 | Jun 1, 2009 | Jun 1, 2009 | Chesapeake Operating, Inc. | Donna Ray East #3HH | 9,000 | 25133665 |
| 681574 | May 27, 2009 | May 27, 2009 | Chesapeake Operating, Inc. | Donna Ray East #2HH | 9,000 | 25133664 |
| 681553 | May 27, 2009 | May 27, 2009 | Chesapeake Operating, Inc. | Cooper #14HH | 9,000 | 25133663 |
| 681553Amendment | May 27, 2009 | May 27, 2009 | Chesapeake Operating, Inc. | Cooper #14HH | 9,000 | 25133663 |
| 660957Amendment | May 27, 2009 | May 27, 2009 | EOG Resources, Inc. | U.S. Lime #29HH | 8,999 | 25132915 |
| 660956Amendment | May 27, 2009 | May 27, 2009 | EOG Resources, Inc. | U.S. Lime #28HH | 8,999 | 25132916 |
| 660953Amendment | May 27, 2009 | May 27, 2009 | EOG Resources, Inc. | U.S. Lime #27HH | 8,999 | 25132917 |
| 681460 | May 26, 2009 | May 26, 2009 | Devon Energy Production Co, L.P. | Tall Timbers #1HH | 9,000 | 25133662 |
| 681465 | May 22, 2009 | May 22, 2009 | EOG Resources, Inc. | Lake Alvarado Unit #10HH | 8,900 | 25133661 |
| 681411 | May 21, 2009 | May 21, 2009 | EOG Resources, Inc. | J.C. Bell Estate Unit #9HH | 8,999 | 25133660 |
| 681408 | May 21, 2009 | May 21, 2009 | EOG Resources, Inc. | J.C. Bell Estate Unit #8HH | 8,999 | 25133659 |
| 681401 | May 21, 2009 | May 21, 2009 | Range Production Company | Cannon #4HH | 9,000 | 25133658 |
| 681401Amendment | May 21, 2009 | May 21, 2009 | Range Production Company | Cannon #4HH | 9,000 | 25133658 |
| 677489Amendment | May 21, 2009 | May 21, 2009 | Chesapeake Operating, Inc. | Don Jernigan #3HH | 9,000 | 25133528 |
| 681400 | May 20, 2009 | May 20, 2009 | Range Production Company | Cannon #3HH | 9,000 | 25133657 |
| 681400Amendment | May 20, 2009 | May 20, 2009 | Range Production Company | Cannon #3HH | 9,000 | 25133657 |
| 681399 | May 20, 2009 | May 20, 2009 | Range Production Company | Cannon #2HH | 9,000 | 25133656 |
| 681399Amendment | May 20, 2009 | May 20, 2009 | Range Production Company | Cannon #2HH | 9,000 | 25133656 |
| 681398 | May 20, 2009 | May 20, 2009 | Range Production Company | Cannon #1HH | 9,000 | 25133655 |
| 681398Amendment | May 20, 2009 | May 20, 2009 | Range Production Company | Cannon #1HH | 9,000 | 25133655 |
| 681302 | May 19, 2009 | May 19, 2009 | Chesapeake Operating, Inc. | Blair #4HH | 9,000 | 25133653 |
| 681302Amendment | May 19, 2009 | May 19, 2009 | Chesapeake Operating, Inc. | Blair #4HH | 9,000 | 25133653 |
| 678998Amendment | May 19, 2009 | May 19, 2009 | Williams Prod. Gulf Coast, L.P. | Vinewood #2HH | 7,650 | 25133573 |
| 677171Amendment | May 19, 2009 | May 19, 2009 | XTO Energy Inc. | Neal #6HH | 10,000 | 25133522 |
| 677169Amendment | May 19, 2009 | May 19, 2009 | XTO Energy Inc. | Neal #5HH | 9,500 | 25133521 |
| 681254 | May 18, 2009 | May 18, 2009 | EOG Resources, Inc. | Cannon Unit #4 | 10,000 | 25134320 |
| 681236 | May 18, 2009 | May 18, 2009 | EOG Resources, Inc. | Cannon Unit #3HH | 10,000 | 25134326 |
| 681235 | May 18, 2009 | May 18, 2009 | EOG Resources, Inc. | Cannon Unit #2HH | 10,000 | 25134325 |
| 670494Amendment | May 18, 2009 | May 18, 2009 | Chesapeake Operating, Inc. | Glade Trust #4HH | 9,000 | 25133279 |
| 670488Amendment | May 18, 2009 | May 18, 2009 | Chesapeake Operating, Inc. | Glade Trust #3HH | 9,000 | 25133278 |
| 681288 | May 15, 2009 | May 15, 2009 | EOG Resources, Inc. | Godley Minerals Unit #10HH | 8,999 | 25133652 |
| 681286 | May 15, 2009 | May 15, 2009 | EOG Resources, Inc. | Godley Minerals Unit #9HH | 8,999 | 25133651 |
| 681284 | May 15, 2009 | May 15, 2009 | EOG Resources, Inc. | Godley Minerals Unit #8HH | 8,999 | 25133650 |
| 681280 | May 15, 2009 | May 15, 2009 | EOG Resources, Inc. | Godley Minerals Unit #7HH | 8,999 | 25133649 |
| 673767Amendment | May 15, 2009 | May 15, 2009 | Chesapeake Operating, Inc. | Cooper #10HH | 9,000 | 25133400 |
| 681166 | May 14, 2009 | May 14, 2009 | EOG Resources, Inc. | Lancaster #17HH | 8,999 | 25133645 |
| 681163 | May 14, 2009 | May 14, 2009 | EOG Resources, Inc. | Lancaster #16HH | 8,999 | 25133644 |
| 678462Amendment | May 13, 2009 | May 13, 2009 | Chesapeake Operating, Inc. | Joshua #1HH | 9,000 | 25133557 |
| 676919Amendment | May 13, 2009 | May 13, 2009 | Chesapeake Operating, Inc. | Gann #4HH | 9,000 | 25133505 |
| 676919Amendment | May 13, 2009 | May 13, 2009 | Chesapeake Operating, Inc. | Gann #4HH | 9,000 | 25133505 |
| 670496Amendment | May 12, 2009 | May 12, 2009 | Chesapeake Operating, Inc. | Glade Trust #5HH | 9,000 | 25133280 |
| 681082 | May 11, 2009 | May 11, 2009 | EOG Resources, Inc. | Wallin Unit #1HH | 8,999 | 25133642 |
| 681082Amendment | May 11, 2009 | May 11, 2009 | EOG Resources, Inc. | Wallin Unit #1HH | 8,999 | 25133642 |
| 681082Amendment | May 11, 2009 | May 11, 2009 | EOG Resources, Inc. | Wallin Unit #1HH | 8,999 | 25133642 |
| 681060 | May 8, 2009 | May 8, 2009 | Devon Energy Production Co, L.P. | Garrett, Ralph #3HH | 9,000 | 25133641 |
| 680852 | May 5, 2009 | May 5, 2009 | EOG Resources, Inc. | Ledezma Unit #1HH | 8,900 | 25133636 |
| 680852Amendment | May 5, 2009 | May 5, 2009 | EOG Resources, Inc. | Ledezma Unit #1HH | 8,900 | 25133636 |
| 680850 | May 5, 2009 | May 5, 2009 | EOG Resources, Inc. | Decker Unit #3HH | 8,900 | 25133635 |
| 680849 | May 5, 2009 | May 5, 2009 | EOG Resources, Inc. | Decker Unit #2HH | 8,900 | 25133634 |
| 680865 | May 4, 2009 | May 4, 2009 | XTO Energy Inc. | County Line HI DY HO #7HH | 10,000 | 25133639 |
| 680865Amendment | May 4, 2009 | May 4, 2009 | XTO Energy Inc. | County Line HI DY HO #7HH | 12,000 | 25133639 |
| 680802 | Apr 30, 2009 | Apr 30, 2009 | EOG Resources, Inc. | Hanna Unit #9HH | 8,999 | 25133633 |
| 680799 | Apr 30, 2009 | Apr 30, 2009 | EOG Resources, Inc. | Hanna Unit #8HH | 8,999 | 25133632 |
| 680794 | Apr 29, 2009 | Apr 29, 2009 | EOG Resources, Inc. | Hanna Unit #3HH | 8,999 | 25133631 |
| 680764 | Apr 29, 2009 | Apr 29, 2009 | EOG Resources, Inc. | Lancaster #18HH | 8,999 | 25133630 |
| 680763 | Apr 29, 2009 | Apr 29, 2009 | EOG Resources, Inc. | Lancaster #15HH | 8,999 | 25133629 |
| 680740 | Apr 29, 2009 | Apr 29, 2009 | Range Production Company | Segerstrom Unit #6HH | 9,000 | 25133626 |
| 680739 | Apr 29, 2009 | Apr 29, 2009 | Range Production Company | Segerstrom Unit #5HH | 9,000 | 25133625 |
| 680738 | Apr 29, 2009 | Apr 29, 2009 | Range Production Company | Segerstrom Unit #4HH | 9,000 | 25133624 |
| 652483Amendment | Apr 29, 2009 | Apr 29, 2009 | XTO Energy Inc. | Rice Unit #1HH | 12,750 | 25132516 |
| 680710 | Apr 28, 2009 | Apr 28, 2009 | Devon Energy Production Co, L.P. | Mary Ross "A" #6HH | 9,000 | 25133623 |
| 680710Amendment | Apr 28, 2009 | Apr 28, 2009 | Devon Energy Production Co, L.P. | Ross, Mary #6HH | 9,000 | 25133623 |
| 680710Amendment | Apr 28, 2009 | Apr 28, 2009 | Devon Energy Production Co, L.P. | Ross, Mary #6HH | 9,000 | 25133623 |