| 680688 | Apr 28, 2009 | Apr 28, 2009 | EOG Resources, Inc. | Fowler Unit #19HH | 8,900 | 25133622 |
| 680686 | Apr 28, 2009 | Apr 28, 2009 | EOG Resources, Inc. | Fowler Unit #18HH | 8,999 | 25133621 |
| 680610 | Apr 27, 2009 | Apr 27, 2009 | EOG Resources, Inc. | Lake Alvarado Unit #5HH | 8,900 | 25133615 |
| 680604 | Apr 27, 2009 | Apr 27, 2009 | EOG Resources, Inc. | Richardson Unit #3HH | 8,999 | 25133614 |
| 672130Amendment | Apr 27, 2009 | Apr 27, 2009 | XTO Energy Inc. | Colonial B Unit #1HH | 10,000 | 25133349 |
| 671448Amendment | Apr 27, 2009 | Apr 27, 2009 | XTO Energy Inc. | Williams Smith Unit #A 4HH | 11,000 | 25133334 |
| 671028Amendment | Apr 27, 2009 | Apr 27, 2009 | XTO Energy Inc. | Colonial a Unit #1HH | 12,000 | 25133309 |
| 680603 | Apr 24, 2009 | Apr 24, 2009 | EOG Resources, Inc. | Richardson Unit #2HH | 8,999 | 25133613 |
| 680597 | Apr 23, 2009 | Apr 23, 2009 | EOG Resources, Inc. | Lake Alvarado Unit #4HH | 8,999 | 25133612 |
| 680597Amendment | Apr 23, 2009 | Apr 23, 2009 | EOG Resources, Inc. | Lake Alvarado Unit #4HH | 8,999 | 25133612 |
| 680592 | Apr 23, 2009 | Apr 23, 2009 | Devon Energy Production Co, L.P. | Hes "A" #3HH | 9,000 | 25133617 |
| 680592Amendment | Apr 23, 2009 | Apr 23, 2009 | Devon Energy Production Co, L.P. | Hes "A" #3HH | 9,000 | 25133617 |
| 680591 | Apr 23, 2009 | Apr 23, 2009 | EOG Resources, Inc. | Lake Alvarado Unit #3HH | 8,999 | 25133611 |
| 680591Amendment | Apr 23, 2009 | Apr 23, 2009 | EOG Resources, Inc. | Lake Alvarado Unit #3HH | 8,999 | 25133611 |
| 680590 | Apr 23, 2009 | Apr 23, 2009 | Devon Energy Production Co, L.P. | Hes "A" #2HH | 9,000 | 25133616 |
| 680590Amendment | Apr 23, 2009 | Apr 23, 2009 | Devon Energy Production Co, L.P. | Hes "A" #2HH | 9,000 | 25133616 |
| 680590Amendment | Apr 23, 2009 | Apr 23, 2009 | Devon Energy Production Co, L.P. | Hes "A" #2HH | 9,000 | 25133616 |
| 680587 | Apr 23, 2009 | Apr 23, 2009 | Devon Energy Production Co, L.P. | Hes "A" #1HH | 9,000 | 25133618 |
| 680550 | Apr 22, 2009 | Apr 22, 2009 | EOG Resources, Inc. | Hanna Unit #2HH | 8,999 | 25133610 |
| 679056Amendment | Apr 22, 2009 | Apr 22, 2009 | Devon Energy Production Co, L.P. | Ross, Mary #2HH | 9,000 | 25133779 |
| 678895Amendment | Apr 22, 2009 | Apr 22, 2009 | Devon Energy Production Co, L.P. | Ross, Mary #1HH | 9,000 | 25133780 |
| 680452 | Apr 17, 2009 | Apr 17, 2009 | EOG Resources, Inc. | Harry Unit #4HH | 8,999 | 25133609 |
| 680451 | Apr 17, 2009 | Apr 17, 2009 | EOG Resources, Inc. | Godley Minerals Unit #6HH | 8,999 | 25133608 |
| 680451Amendment | Apr 17, 2009 | Apr 17, 2009 | EOG Resources, Inc. | Godley Minerals Unit #6HH | 8,999 | 25133608 |
| 680399 | Apr 16, 2009 | Apr 16, 2009 | EOG Resources, Inc. | Godley Minerals Unit #5HH | 8,999 | 25133606 |
| 680369 | Apr 15, 2009 | Apr 15, 2009 | XTO Energy Inc. | Williams Smith Unit #A 2HH | 11,000 | 25133605 |
| 680369Amendment | Apr 15, 2009 | Apr 15, 2009 | XTO Energy Inc. | Williams Smith Unit #A 2HH | 11,000 | 25133605 |
| 678108Amendment | Apr 13, 2009 | Apr 13, 2009 | Chesapeake Operating, Inc. | Davenport #3HH | 9,000 | 25133551 |
| 680308 | Apr 10, 2009 | Apr 10, 2009 | XTO Energy Inc. | Crisp Unit #2HH | 11,000 | 25133604 |
| 680308Amendment | Apr 10, 2009 | Apr 10, 2009 | XTO Energy Inc. | Crisp Unit #2HH | 11,000 | 25133604 |
| 680211 | Apr 9, 2009 | Apr 9, 2009 | Devon Energy Production Co, L.P. | Buffalo Acres #1HH | 9,000 | 25133603 |
| 680230 | Apr 8, 2009 | Apr 8, 2009 | EOG Resources, Inc. | Core Lab #7HH | 10,000 | 25133602 |
| 679846 | Apr 6, 2009 | Apr 6, 2009 | Williams Prod. Gulf Coast, L.P. | Forest Ridge #4HH | 7,665 | 25133601 |
| 662187Amendment | Apr 3, 2009 | Apr 3, 2009 | EOG Resources, Inc. | Stubbe Unit #2HH | 10,000 | 25133118 |
| 680020 | Apr 2, 2009 | Apr 2, 2009 | EOG Resources, Inc. | Dodson Unit #7HH | 10,000 | 25133600 |
| 680018 | Apr 2, 2009 | Apr 2, 2009 | EOG Resources, Inc. | Dodson Unit #6HH | 10,000 | 25133599 |
| 680009 | Apr 2, 2009 | Apr 2, 2009 | EOG Resources, Inc. | Eagle Ford a Unit #9HH | 10,000 | 25133598 |
| 679983 | Apr 1, 2009 | Apr 1, 2009 | XTO Energy Inc. | Williams Smith Unit #A 5HH | 11,000 | 25133597 |
| 679983Amendment | Apr 1, 2009 | Apr 1, 2009 | XTO Energy Inc. | Williams Smith Unit #A 5HH | 11,000 | 25133597 |
| 679849 | Mar 31, 2009 | Mar 31, 2009 | Williams Prod. Gulf Coast, L.P. | Forest Ridge #5HH | 7,665 | 25133593 |
| 679885 | Mar 30, 2009 | Mar 30, 2009 | EOG Resources, Inc. | Eagle Ford C Unit #11 | 10,000 | 25133595 |
| 679885Amendment | Mar 30, 2009 | Mar 30, 2009 | EOG Resources, Inc. | Eagle Ford C Unit #11HH | 8,900 | 25133595 |
| 679883 | Mar 30, 2009 | Mar 30, 2009 | EOG Resources, Inc. | Eagle Ford C Unit #10 | 10,000 | 25133594 |
| 679883Amendment | Mar 30, 2009 | Mar 30, 2009 | EOG Resources, Inc. | Eagle Ford C Unit #10HH | 8,900 | 25133594 |
| 679881 | Mar 30, 2009 | Mar 30, 2009 | EOG Resources, Inc. | Fowler Unit #9HH | 10,000 | 25133596 |
| 679881Amendment | Mar 30, 2009 | Mar 30, 2009 | EOG Resources, Inc. | Fowler Unit #9HH | 8,900 | 25133596 |
| 679838 | Mar 30, 2009 | Mar 30, 2009 | Williams Prod. Gulf Coast, L.P. | Forest Ridge #3HH | 7,665 | 25133592 |
| 678716Amendment | Mar 30, 2009 | Mar 30, 2009 | Chesapeake Operating, Inc. | Winscott #G 5HH | 9,000 | 25133563 |
| 670309Amendment | Mar 30, 2009 | Mar 30, 2009 | Chesapeake Operating, Inc. | Winscott #G 3HH | 9,000 | 25133290 |
| 669217Amendment | Mar 30, 2009 | Mar 30, 2009 | Devon Energy Production Co, L.P. | Jones, T. L. #4HH | 9,000 | 25133258 |
| 671391Amendment | Mar 26, 2009 | Mar 26, 2009 | Chesapeake Operating, Inc. | Upchurch #6HH | 9,000 | 25133326 |
| 679328 | Mar 25, 2009 | Mar 25, 2009 | Range Production Company | Walker-Morris Unit #1HH | 9,000 | 25133580 |
| 678757 | Mar 25, 2009 | Mar 25, 2009 | Chesapeake Operating, Inc. | Burleson Elks #4HH | 9,000 | 25133567 |
| 678757Amendment | Mar 25, 2009 | Mar 25, 2009 | Chesapeake Operating, Inc. | Burleson Elks #4HH | 9,000 | 25133567 |
| 678757Amendment | Mar 25, 2009 | Mar 25, 2009 | Chesapeake Operating, Inc. | Burleson Elks #4HH | 9,000 | 25133567 |
| 678756 | Mar 25, 2009 | Mar 25, 2009 | Chesapeake Operating, Inc. | Burleson Elks #2HH | 9,000 | 25133568 |
| 678756Amendment | Mar 25, 2009 | Mar 25, 2009 | Chesapeake Operating, Inc. | Burleson Elks #2HH | 9,000 | 25133568 |
| 678756Amendment | Mar 25, 2009 | Mar 25, 2009 | Chesapeake Operating, Inc. | Burleson Elks #2HH | 9,000 | 25133568 |
| 678756Amendment | Mar 25, 2009 | Mar 25, 2009 | Chesapeake Operating, Inc. | Burleson Elks #2HH | 9,000 | 25133568 |
| 679732 | Mar 23, 2009 | Mar 23, 2009 | Devon Energy Production Co, L.P. | Crawford #1HH | 9,000 | 25133591 |
| 679707 | Mar 23, 2009 | Mar 23, 2009 | Chesapeake Operating, Inc. | Larue Welty #1HH | 9,000 | 25133590 |
| 679707Amendment | Mar 23, 2009 | Mar 23, 2009 | Chesapeake Operating, Inc. | Larue Welty #1HH | 9,000 | 25133590 |
| 679665 | Mar 20, 2009 | Mar 20, 2009 | EOG Resources, Inc. | Wolfe Unit #4HH | 10,000 | 25133588 |
| 679663 | Mar 20, 2009 | Mar 20, 2009 | EOG Resources, Inc. | Wolfe Unit #3HH | 10,000 | 25133587 |
| 679622 | Mar 20, 2009 | Mar 20, 2009 | EOG Resources, Inc. | Kolar Unit #10HH | 10,000 | 25133586 |
| 677747Amendment | Mar 20, 2009 | Mar 20, 2009 | Chesapeake Operating, Inc. | Christian School #1HH | 9,000 | 25133532 |
| 670306Amendment | Mar 20, 2009 | Mar 20, 2009 | Chesapeake Operating, Inc. | Winscott #G 1HH | 9,000 | 25133288 |
| 667085Amendment | Mar 20, 2009 | Mar 20, 2009 | EOG Resources, Inc. | Wolfe Unit #5HH | 10,000 | 25133164 |
| 679557 | Mar 19, 2009 | Mar 19, 2009 | XTO Energy Inc. | Lewis Unit #B 23HH | 11,000 | 25133585 |
| 679557Amendment | Mar 19, 2009 | Mar 19, 2009 | XTO Energy Inc. | Lewis Unit #B 4HH | 11,000 | 25133585 |
| 677104Amendment | Mar 19, 2009 | Mar 19, 2009 | Chesapeake Operating, Inc. | Gearhart #2HH | 9,000 | 25133515 |
| 679426 | Mar 18, 2009 | Mar 18, 2009 | EOG Resources, Inc. | Godley Minerals Unit #4HH | 10,000 | 25133583 |
| 665504Amendment | Mar 18, 2009 | Mar 18, 2009 | EOG Resources, Inc. | Eagle Ford C Unit #6HH | 10,000 | 25133584 |
| 679421 | Mar 16, 2009 | Mar 16, 2009 | EOG Resources, Inc. | Godley Minerals Unit #3HH | 10,000 | 25133582 |
| 679347 | Mar 13, 2009 | Mar 13, 2009 | Devon Energy Production Co, L.P. | Deal #1HH | 9,000 | 25133581 |
| 679307 | Mar 13, 2009 | Mar 13, 2009 | Chesapeake Operating, Inc. | Sanders View #1HH | 9,000 | 25133579 |
| 679307Amendment | Mar 13, 2009 | Mar 13, 2009 | Chesapeake Operating, Inc. | Sanders View #1HH | 9,000 | 25133579 |
| 679307Amendment | Mar 13, 2009 | Mar 13, 2009 | Chesapeake Operating, Inc. | Sanders View #1HH | 9,000 | 25133579 |
| 673142Amendment | Mar 13, 2009 | Mar 13, 2009 | EOG Resources, Inc. | Raam #7HH | 10,000 | 25133384 |
| 678831 | Mar 12, 2009 | Mar 12, 2009 | Devon Energy Production Co, L.P. | Gary Crabtree GU #3HH | 9,000 | 25133574 |
| 673117Amendment | Mar 12, 2009 | Mar 12, 2009 | EOG Resources, Inc. | Raam #5HH | 10,000 | 25133381 |
| 679209 | Mar 11, 2009 | Mar 11, 2009 | Williams Prod. Gulf Coast, L.P. | Vinewood #3HH | 7,650 | 25133578 |
| 679209Amendment | Mar 11, 2009 | Mar 11, 2009 | Williams Prod. Gulf Coast, L.P. | Vinewood #3HH | 7,650 | 25133578 |
| 679265 | Mar 10, 2009 | Mar 10, 2009 | Chesapeake Operating, Inc. | Little Hoss #T 2HH | 9,000 | 25133576 |
| 679257 | Mar 10, 2009 | Mar 10, 2009 | XTO Energy Inc. | Sherry Stanford Unit #2HH | 11,000 | 25133575 |
| 679257Amendment | Mar 10, 2009 | Mar 10, 2009 | XTO Energy Inc. | Sherry Stanford Unit #2HH | 11,000 | 25133575 |
| 679210 | Mar 10, 2009 | Mar 10, 2009 | Williams Prod. Gulf Coast, L.P. | Vinewood #4HH | 7,650 | 25133577 |
| 678470 | Mar 10, 2009 | Mar 10, 2009 | Chesapeake Operating, Inc. | Green Ridge Lane #1HH | 9,000 | 25133559 |
| 671394Amendment | Mar 9, 2009 | Mar 9, 2009 | Chesapeake Operating, Inc. | Upchurch #8HH | 9,000 | 25133330 |
| 671392Amendment | Mar 9, 2009 | Mar 9, 2009 | Chesapeake Operating, Inc. | Upchurch #7HH | 9,000 | 25133329 |
| 678998 | Mar 3, 2009 | Mar 3, 2009 | Williams Prod. Gulf Coast, L.P. | Vinewood #2HH | 7,650 | 25133573 |
| 678996 | Mar 3, 2009 | Mar 3, 2009 | Chesapeake Operating, Inc. | Winscott #F 5HH | 9,000 | 25133572 |
| 670487Amendment | Mar 3, 2009 | Mar 3, 2009 | Chesapeake Operating, Inc. | Glade Trust #2HH | 9,000 | 25133277 |
| 667663Amendment | Mar 2, 2009 | Mar 2, 2009 | Chesapeake Operating, Inc. | Mountain Valley #3HH | 9,000 | 25133198 |
| 678888 | Feb 26, 2009 | Feb 26, 2009 | Chesapeake Operating, Inc. | Hodges Trust #1HH | 9,000 | 25133571 |
| 678888Amendment | Feb 26, 2009 | Feb 26, 2009 | Chesapeake Operating, Inc. | Hodges Trust #1HH | 9,000 | 25133571 |
| 678888Amendment | Feb 26, 2009 | Feb 26, 2009 | Chesapeake Operating, Inc. | Hodges Trust #1HH | 9,000 | 25133571 |
| 678888Amendment | Feb 26, 2009 | Feb 26, 2009 | Chesapeake Operating, Inc. | Hodges Trust #1HH | 9,000 | 25133571 |
| 678887 | Feb 26, 2009 | Feb 26, 2009 | EOG Resources, Inc. | Ellis Unit #2HH | 10,000 | 25133570 |
| 673140Amendment | Feb 26, 2009 | Feb 26, 2009 | EOG Resources, Inc. | Raam #6HH | 10,000 | 25133383 |