| 650823Amendment | Nov 17, 2008 | Nov 17, 2008 | EOG Resources, Inc. | Pallmeyer Unit #6HH | 10,000 | 25132429 |
| 674761 | Nov 15, 2008 | Nov 15, 2008 | Devon Energy Production Co, L.P. | Stone Family Partners #6HH | 9,000 | 25133454 |
| 674759 | Nov 15, 2008 | Nov 15, 2008 | Devon Energy Production Co, L.P. | Stoner Family Partners #5HH | 9,000 | 25133452 |
| 674758 | Nov 15, 2008 | Nov 15, 2008 | Devon Energy Production Co, L.P. | Stoner Family Partners #4HH | 9,000 | 25133451 |
| 674757 | Nov 15, 2008 | Nov 15, 2008 | Devon Energy Production Co, L.P. | Stoner Family Partners #2HH | 9,000 | 25133453 |
| 674702 | Nov 15, 2008 | Nov 15, 2008 | Devon Energy Production Co, L.P. | Weber, John #3HH | 9,000 | 25133443 |
| 674701 | Nov 15, 2008 | Nov 15, 2008 | Chesapeake Operating, Inc. | Poindexter #3HH | 9,000 | 25133442 |
| 674700 | Nov 15, 2008 | Nov 15, 2008 | Chesapeake Operating, Inc. | Poindexter #2HH | 9,000 | 25133450 |
| 674699 | Nov 15, 2008 | Nov 15, 2008 | Devon Energy Production Co, L.P. | Weber, John #2HH | 9,000 | 25133441 |
| 674698 | Nov 15, 2008 | Nov 15, 2008 | Chesapeake Operating, Inc. | Poindexter #1HH | 9,000 | 25133440 |
| 674698Amendment | Nov 15, 2008 | Nov 15, 2008 | Chesapeake Operating, Inc. | Poindexter #1HH | 9,000 | 25133440 |
| 674695 | Nov 15, 2008 | Nov 15, 2008 | Devon Energy Production Co, L.P. | Weber, John #1HH | 9,000 | 25133439 |
| 674646 | Nov 15, 2008 | Nov 15, 2008 | Williams Prod. Gulf Coast, L.P. | Duckett #5HH | 7,800 | 25133437 |
| 674626 | Nov 15, 2008 | Nov 15, 2008 | Burlington Resources O & G Co LP | Georges Creek Ranch #28HH | 9,000 | 25133438 |
| 674625 | Nov 15, 2008 | Nov 15, 2008 | Burlington Resources O & G Co LP | Georges Creek Ranch #27HH | 9,000 | 25133436 |
| 674571 | Nov 14, 2008 | Nov 14, 2008 | Williams Prod. Gulf Coast, L.P. | Duckett #4HH | 7,800 | 25133435 |
| 674460 | Nov 13, 2008 | Nov 13, 2008 | Chesapeake Operating, Inc. | Forsberg #6HH | 9,000 | 25133433 |
| 674259 | Nov 13, 2008 | Nov 13, 2008 | Williams Prod. Gulf Coast, L.P. | Duckett #3HH | 7,800 | 25133425 |
| 674232 | Nov 13, 2008 | Nov 13, 2008 | Chesapeake Operating, Inc. | Texan #3HH | 9,000 | 25133424 |
| 669867 | Nov 13, 2008 | Nov 13, 2008 | EOG Resources, Inc. | Brindley Unit #10HH | 10,000 | 25133276 |
| 674498 | Nov 12, 2008 | Nov 12, 2008 | Devon Energy Production Co, L.P. | Stoner Family Partners #3HH | 9,000 | 25133434 |
| 672285 | Nov 12, 2008 | Nov 12, 2008 | Chesapeake Operating, Inc. | Holly #6HH | 9,000 | 25133355 |
| 674433 | Nov 10, 2008 | Nov 10, 2008 | Chesapeake Operating, Inc. | Cordelia #4HH | 9,000 | 25133432 |
| 674393 | Nov 10, 2008 | Nov 10, 2008 | Chesapeake Operating, Inc. | Olai #5HH | 9,000 | 25133429 |
| 674389 | Nov 10, 2008 | Nov 10, 2008 | Chesapeake Operating, Inc. | Olai #4HH | 9,000 | 25133428 |
| 674360 | Nov 10, 2008 | Nov 10, 2008 | Chesapeake Operating, Inc. | Mayfield 361 #5HH | 9,000 | 25133431 |
| 674360Amendment | Nov 10, 2008 | Nov 10, 2008 | Chesapeake Operating, Inc. | Mayfield 361 #5HH | 9,000 | 25133431 |
| 674358 | Nov 10, 2008 | Nov 10, 2008 | Chesapeake Operating, Inc. | Mayfield 361 #4HH | 9,000 | 25133430 |
| 674358Amendment | Nov 10, 2008 | Nov 10, 2008 | Chesapeake Operating, Inc. | Mayfield 361 #4HH | 9,000 | 25133430 |
| 674315 | Nov 7, 2008 | Nov 7, 2008 | EOG Resources, Inc. | Wilson Unit #13HH | 10,000 | 25133427 |
| 674313 | Nov 7, 2008 | Nov 7, 2008 | EOG Resources, Inc. | Wilson Unit #12HH | 10,000 | 25133426 |
| 674235 | Nov 7, 2008 | Nov 7, 2008 | Chesapeake Operating, Inc. | Texan #4HH | 9,000 | 25133423 |
| 674228 | Nov 7, 2008 | Nov 7, 2008 | Chesapeake Operating, Inc. | HF Meadows #6HH | 9,000 | 25133421 |
| 674228Amendment | Nov 7, 2008 | Nov 7, 2008 | Chesapeake Operating, Inc. | HF Meadows #6HH | 9,000 | 25133421 |
| 674219 | Nov 7, 2008 | Nov 7, 2008 | Chesapeake Operating, Inc. | Texan #2HH | 9,000 | 25133418 |
| 674207 | Nov 7, 2008 | Nov 7, 2008 | Chesapeake Operating, Inc. | King B #4HH | 9,000 | 25133417 |
| 674207Amendment | Nov 7, 2008 | Nov 7, 2008 | Chesapeake Operating, Inc. | King B #4HH | 9,000 | 25133417 |
| 674206 | Nov 7, 2008 | Nov 7, 2008 | Chesapeake Operating, Inc. | King B #3HH | 9,000 | 25133420 |
| 674206Amendment | Nov 7, 2008 | Nov 7, 2008 | Chesapeake Operating, Inc. | King B #3HH | 9,000 | 25133420 |
| 674206Amendment | Nov 7, 2008 | Nov 7, 2008 | Chesapeake Operating, Inc. | King B #3HH | 9,000 | 25133420 |
| 674206Amendment | Nov 7, 2008 | Nov 7, 2008 | Chesapeake Operating, Inc. | King B #3HH | 9,000 | 25133420 |
| 674204 | Nov 7, 2008 | Nov 7, 2008 | Chesapeake Operating, Inc. | King B #2HH | 9,000 | 25133419 |
| 674204Amendment | Nov 7, 2008 | Nov 7, 2008 | Chesapeake Operating, Inc. | King B #2HH | 9,000 | 25133419 |
| 674204Amendment | Nov 7, 2008 | Nov 7, 2008 | Chesapeake Operating, Inc. | King B #2HH | 9,000 | 25133419 |
| 674203 | Nov 7, 2008 | Nov 7, 2008 | Chesapeake Operating, Inc. | King B #1HH | 9,000 | 25133416 |
| 674203Amendment | Nov 7, 2008 | Nov 7, 2008 | Chesapeake Operating, Inc. | King B #1HH | 9,000 | 25133416 |
| 674203Amendment | Nov 7, 2008 | Nov 7, 2008 | Chesapeake Operating, Inc. | King B #1HH | 9,000 | 25133416 |
| 674203Amendment | Nov 7, 2008 | Nov 7, 2008 | Chesapeake Operating, Inc. | King B #1HH | 9,000 | 25133416 |
| 673984 | Nov 7, 2008 | Nov 7, 2008 | Williams Prod. Gulf Coast, L.P. | Duckett #2HH | 7,800 | 25133406 |
| 672263 | Nov 6, 2008 | Nov 6, 2008 | Chesapeake Operating, Inc. | Holly #7HH | 9,000 | 25133354 |
| 674225 | Nov 5, 2008 | Nov 5, 2008 | Chesapeake Operating, Inc. | HF Meadows #5HH | 9,000 | 25133422 |
| 674225Amendment | Nov 5, 2008 | Nov 5, 2008 | Chesapeake Operating, Inc. | HF Meadows #5HH | 9,000 | 25133422 |
| 672152 | Nov 5, 2008 | Nov 5, 2008 | Sullivan, Hollis R. Inc. | Colonial B #2HH | 8,900 | 25133348 |
| 672152Amendment | Nov 5, 2008 | Nov 5, 2008 | XTO Energy Inc. | Colonial B Unit #2HH | 11,000 | 25133348 |
| 672130 | Nov 5, 2008 | Nov 5, 2008 | Sullivan, Hollis R. Inc. | Colonial B #1HH | 8,900 | 25133349 |
| 672130Amendment | Nov 5, 2008 | Nov 5, 2008 | XTO Energy Inc. | Colonial B Unit #1HH | 11,000 | 25133349 |
| 674111 | Nov 4, 2008 | Nov 4, 2008 | EOG Resources, Inc. | Hudgins Unit #7HH | 10,000 | 25133415 |
| 674110 | Nov 4, 2008 | Nov 4, 2008 | EOG Resources, Inc. | Hudgins Unit #6HH | 10,000 | 25133414 |
| 674107 | Nov 4, 2008 | Nov 4, 2008 | EOG Resources, Inc. | Hudgins Unit #5HH | 10,000 | 25133413 |
| 674104 | Nov 4, 2008 | Nov 4, 2008 | EOG Resources, Inc. | Hudgins Unit #4HH | 10,000 | 25133411 |
| 674100 | Nov 3, 2008 | Nov 3, 2008 | EOG Resources, Inc. | Wilkes Unit #5HH | 10,000 | 25133410 |
| 674099 | Nov 3, 2008 | Nov 3, 2008 | EOG Resources, Inc. | Wilkes Unit #4HH | 10,000 | 25133412 |
| 674094 | Nov 3, 2008 | Nov 3, 2008 | EOG Resources, Inc. | Ruzicka Unit #3HH | 10,000 | 25133409 |
| 674092 | Nov 3, 2008 | Nov 3, 2008 | EOG Resources, Inc. | Ruzicka Unit #2HH | 10,000 | 25133408 |
| 674033 | Nov 3, 2008 | Nov 3, 2008 | Chesapeake Operating, Inc. | Sandlin #1HH | 9,000 | 25133407 |
| 673539 | Nov 3, 2008 | Nov 3, 2008 | Richey, Ray Management Co., Inc. | Space Acres Unit #3HH | 10,600 | 25133404 |
| 673538 | Nov 3, 2008 | Nov 3, 2008 | Richey, Ray Management Co., Inc. | Space Acres Unit #2HH | 10,600 | 25133403 |
| 673404 | Nov 3, 2008 | Nov 3, 2008 | Chesapeake Operating, Inc. | Doc Owen #5HH | 11,000 | 25133396 |
| 672496Amendment | Oct 31, 2008 | Oct 31, 2008 | Williams Prod. Gulf Coast, L.P. | Duckett #1HH | 8,500 | 25133363 |
| 673837 | Oct 30, 2008 | Oct 30, 2008 | Chesapeake Operating, Inc. | Cooper #13HH | 9,000 | 25133402 |
| 670285Amendment | Oct 30, 2008 | Oct 30, 2008 | Chesapeake Operating, Inc. | McAnier #5HH | 9,000 | 25133291 |
| 667663 | Oct 30, 2008 | Oct 30, 2008 | Chesapeake Operating, Inc. | Mountain Valley #3HH | 9,000 | 25133198 |
| 667374Amendment | Oct 30, 2008 | Oct 30, 2008 | Chesapeake Operating, Inc. | Burleson Elks #1HH | 9,000 | 25133184 |
| 673863 | Oct 29, 2008 | Oct 29, 2008 | EOG Resources, Inc. | Leonard Unit #7RHH | 10,000 | 25133405 |
| 661077Amendment | Oct 29, 2008 | Oct 29, 2008 | XTO Energy Inc. | Arango Unit #1HH | 10,000 | 25132921 |
| 657808Amendment | Oct 29, 2008 | Oct 29, 2008 | XTO Energy Inc. | Shaded Lane Unit #3HH | 12,000 | 25132765 |
| 657808Amendment | Oct 29, 2008 | Oct 29, 2008 | XTO Energy Inc. | Shaded Lane Unit #3HH | 12,000 | 25132765 |
| 657807Amendment | Oct 29, 2008 | Oct 29, 2008 | XTO Energy Inc. | Shaded Lane Unit #2HH | 12,000 | 25132764 |
| 657807Amendment | Oct 29, 2008 | Oct 29, 2008 | XTO Energy Inc. | Shaded Lane Unit #2HH | 12,000 | 25132764 |
| 671380Amendment | Oct 28, 2008 | Oct 28, 2008 | EOG Resources, Inc. | Wilson Unit #11HH | 10,000 | 25133327 |
| 671028 | Oct 28, 2008 | Oct 28, 2008 | Sullivan, Hollis R. Inc. | Colonial A #1HH | 8,900 | 25133309 |
| 671028Amendment | Oct 28, 2008 | Oct 28, 2008 | XTO Energy Inc. | Colonial A #1HH | 11,000 | 25133309 |
| 673798 | Oct 27, 2008 | Oct 27, 2008 | EOG Resources, Inc. | KTV Caddo Unit #5HH | 10,000 | 25133401 |
| 673767 | Oct 25, 2008 | Oct 25, 2008 | Chesapeake Operating, Inc. | Cooper #10HH | 9,000 | 25133400 |
| 673671 | Oct 25, 2008 | Oct 25, 2008 | EOG Resources, Inc. | Harry Unit #3HH | 10,000 | 25133399 |
| 673613 | Oct 25, 2008 | Oct 25, 2008 | EOG Resources, Inc. | County Line Unit #4HH | 10,000 | 25133398 |
| 671396Amendment | Oct 25, 2008 | Oct 25, 2008 | EOG Resources, Inc. | Wilson Unit #10HH | 10,000 | 25133328 |
| 671360Amendment | Oct 25, 2008 | Oct 25, 2008 | EOG Resources, Inc. | Wilson Unit #9HH | 10,000 | 25133325 |
| 673517 | Oct 24, 2008 | Oct 24, 2008 | Chesapeake Operating, Inc. | Gann #2HH | 9,000 | 25133397 |
| 673517Amendment | Oct 24, 2008 | Oct 24, 2008 | Chesapeake Operating, Inc. | Gann #2HH | 9,000 | 25133397 |
| 673140 | Oct 24, 2008 | Oct 24, 2008 | EOG Resources, Inc. | Raam Unit #6HH | 10,000 | 25133383 |
| 673140Amendment | Oct 24, 2008 | Oct 24, 2008 | EOG Resources, Inc. | Raam Unit #6HH | 10,000 | 25133383 |
| 673401 | Oct 23, 2008 | Oct 23, 2008 | Chesapeake Operating, Inc. | Doc Owen #2HH | 11,000 | 25133395 |
| 673326 | Oct 22, 2008 | Oct 22, 2008 | Chesapeake Operating, Inc. | Gann #1HH | 9,000 | 25133394 |
| 673326Amendment | Oct 22, 2008 | Oct 22, 2008 | Chesapeake Operating, Inc. | Gann #1HH | 9,000 | 25133394 |
| 673257 | Oct 22, 2008 | Oct 22, 2008 | Chesapeake Operating, Inc. | Mize Family #29HH | 9,000 | 25133389 |
| 667216Amendment | Oct 22, 2008 | Oct 22, 2008 | Chesapeake Operating, Inc. | McAnier #8HH | 9,000 | 25133170 |
| 673265 | Oct 21, 2008 | Oct 21, 2008 | Chesapeake Operating, Inc. | Welliver #5HH | 9,000 | 25133392 |
| 673263 | Oct 21, 2008 | Oct 21, 2008 | Chesapeake Operating, Inc. | Welliver #3HH | 9,000 | 25133391 |
| 673261 | Oct 21, 2008 | Oct 21, 2008 | Chesapeake Operating, Inc. | Welliver #2HH | 9,000 | 25133390 |