| 608148 | Oct 20, 2005 | Oct 20, 2005 | EOG Resources, Inc. | Campbell Unit #2HH | 8,600 | 25130608 |
| 608148Amendment | Oct 20, 2005 | Oct 20, 2005 | EOG Resources, Inc. | Campbell Unit #2HH | 8,600 | 25130608 |
| 608146 | Oct 20, 2005 | Oct 20, 2005 | EOG Resources, Inc. | Geren #10HH | 7,000 | 25130607 |
| 608128 | Oct 19, 2005 | Oct 19, 2005 | Chesapeake Operating, Inc. | Bethany #5HH | 11,000 | 25130603 |
| 608058 | Oct 19, 2005 | Oct 19, 2005 | EOG Resources, Inc. | Kolar Unit #3HH | 7,700 | 25130606 |
| 608013 | Oct 19, 2005 | Oct 19, 2005 | Quicksilver Resources Inc. | Homer #1HH | 6,800 | 25130604 |
| 608013Amendment | Oct 19, 2005 | Oct 19, 2005 | Quicksilver Resources Inc. | Homer #1HH | 6,800 | 25130604 |
| 608118 | Oct 18, 2005 | Oct 18, 2005 | Devon Energy Production Co, L.P. | Schmidt Management Trust #1 HH | 9,000 | 25130602 |
| 608116 | Oct 18, 2005 | Oct 18, 2005 | Devon Energy Production Co, L.P. | Lleta Lightfoot #1HH | 9,000 | 25130601 |
| 608059 | Oct 18, 2005 | Oct 18, 2005 | Williams Prod. Gulf Coast, L.P. | Threemont #2HH | 8,200 | 25130599 |
| 608048 | Oct 18, 2005 | Oct 18, 2005 | EOG Resources, Inc. | 720 JV #2HH | 9,000 | 25130598 |
| 608006 | Oct 18, 2005 | Oct 18, 2005 | XTO Energy Inc. | Harper Cattle #B 4HH | 11,000 | 25130597 |
| 607038 | Oct 18, 2005 | Oct 18, 2005 | XTO Energy Inc. | Bursey #1HH | 11,000 | 25130600 |
| 607038Amendment | Oct 18, 2005 | Oct 18, 2005 | XTO Energy Inc. | Bursey #1HH | 11,000 | 25130600 |
| 607941 | Oct 14, 2005 | Oct 14, 2005 | Chesapeake Operating, Inc. | Townsend #1HH | 11,000 | 25130596 |
| 607879 | Oct 14, 2005 | Oct 14, 2005 | Devon Energy Production Co, L.P. | King, John Edward #1 HH | 9,000 | 25130594 |
| 607868 | Oct 14, 2005 | Oct 14, 2005 | XTO Energy Inc. | Stone #1HH | 11,000 | 25130593 |
| 607867 | Oct 14, 2005 | Oct 14, 2005 | Chesapeake Operating, Inc. | Bethany #3HH | 12,000 | 25130592 |
| 607839 | Oct 14, 2005 | Oct 14, 2005 | Devon Energy Production Co, L.P. | Cryer, Donald Lee #1 HH | 9,000 | 25130595 |
| 607780 | Oct 14, 2005 | Oct 14, 2005 | Devon Energy Production Co, L.P. | Vincent Darino #1HH | 9,000 | 25130591 |
| 607829 | Oct 13, 2005 | Oct 13, 2005 | North Texas Llano Operating Corp | Campbell-Caudle #1HH | 8,900 | 25130590 |
| 607701 | Oct 13, 2005 | Oct 13, 2005 | Quicksilver Resources Inc. | Montgomery Burns #1HH | 6,800 | 25130589 |
| 607675 | Oct 11, 2005 | Oct 11, 2005 | Burlington Resources O & G Co LP | Georges Creek Ranch #9HH | 9,000 | 25130588 |
| 607670 | Oct 11, 2005 | Oct 11, 2005 | Reichmann Petroleum Corp. | H&D #1HH | 10,500 | 25130587 |
| 607662 | Oct 11, 2005 | Oct 11, 2005 | Devon Energy Production Co, L.P. | Snodgress, Randal #1 HH | 9,000 | 25130585 |
| 607662Amendment | Oct 11, 2005 | Oct 11, 2005 | Devon Energy Production Co, L.P. | Snodgress, Randal #1 HH | 9,000 | 25130585 |
| 607661 | Oct 11, 2005 | Oct 11, 2005 | Devon Energy Production Co, L.P. | Sylvester #1H | 9,000 | 25130586 |
| 607652 | Oct 11, 2005 | Oct 11, 2005 | Chesapeake Operating, Inc. | Doc Owen #1HH | 11,000 | 25130584 |
| 607652Amendment | Oct 11, 2005 | Oct 11, 2005 | Chesapeake Operating, Inc. | Doc Owen #1HH | 11,000 | 25130584 |
| 607634 | Oct 10, 2005 | Oct 10, 2005 | XTO Energy Inc. | Wilkinson Unit #1HH | 11,000 | 25130583 |
| 607634Amendment | Oct 10, 2005 | Oct 10, 2005 | XTO Energy Inc. | Wilkinson Unit #1HH | 11,000 | 25130583 |
| 607603 | Oct 10, 2005 | Oct 10, 2005 | J-W Operating Co. | Atlas, Mildred #2HH | 13,000 | 25130582 |
| 607603Amendment | Oct 10, 2005 | Oct 10, 2005 | J-W Operating Co. | Atlas, Mildred #2HH | 13,000 | 25130582 |
| 607512 | Oct 10, 2005 | Oct 10, 2005 | EOG Resources, Inc. | Gossett Unit #1HH | 7,700 | 25130581 |
| 607512Amendment | Oct 10, 2005 | Oct 10, 2005 | EOG Resources, Inc. | Gossett Unit #1HH | 7,700 | 25130581 |
| 607529 | Oct 7, 2005 | Oct 7, 2005 | Sundance Resources, Inc. | Hobson-Morgan #1HH | 7,500 | 25130580 |
| 607510 | Oct 7, 2005 | Oct 7, 2005 | Adexco Operating Company | Hidle-Deaver #1HH | 8,500 | 25130579 |
| 607446 | Oct 6, 2005 | Oct 6, 2005 | Chesapeake Operating, Inc. | Bayless #1HH | 12,000 | 25130578 |
| 607445 | Oct 6, 2005 | Oct 6, 2005 | Chesapeake Operating, Inc. | Williams #6HH | 13,000 | 25130577 |
| 607372 | Oct 5, 2005 | Oct 5, 2005 | Stroud Energy, Ltd. | Lleta Lightfoot #1REH | 8,806 | 25130212 |
| 607366 | Oct 5, 2005 | Oct 5, 2005 | Chesapeake Operating, Inc. | Mize Family #13HH | 12,000 | 25130575 |
| 607366Amendment | Oct 5, 2005 | Oct 5, 2005 | Chesapeake Operating, Inc. | Mize Family #13HH | 12,000 | 25130575 |
| 607365 | Oct 5, 2005 | Oct 5, 2005 | Chesapeake Operating, Inc. | Mize Family #12HH | 12,000 | 25130574 |
| 607365Amendment | Oct 5, 2005 | Oct 5, 2005 | Chesapeake Operating, Inc. | Mize Family #12HH | 12,000 | 25130574 |
| 607364 | Oct 5, 2005 | Oct 5, 2005 | Chesapeake Operating, Inc. | Mize Family #10HH | 12,000 | 25130573 |
| 607305 | Oct 5, 2005 | Oct 5, 2005 | EOG Resources, Inc. | O'Dowd Unit #2HH | 7,700 | 25130572 |
| 607220 | Oct 3, 2005 | Oct 3, 2005 | Chief Oil & Gas LLC | Pipes Unit #1HH | 8,900 | 25130571 |
| 607215 | Oct 3, 2005 | Oct 3, 2005 | Devon Energy Production Co, L.P. | Dean #1 HH | 9,000 | 25130569 |
| 607199 | Oct 3, 2005 | Oct 3, 2005 | EOG Resources, Inc. | Gorman Unit #1HH | 8,700 | 25130570 |
| 607199Amendment | Oct 3, 2005 | Oct 3, 2005 | EOG Resources, Inc. | Gorman Unit #1HH | 8,700 | 25130570 |
| 607204 | Sep 30, 2005 | Sep 30, 2005 | Devon Energy Production Co, L.P. | England, Dena #1 HH | 9,000 | 25130568 |
| 607189 | Sep 30, 2005 | Sep 30, 2005 | EOG Resources, Inc. | Hilton Unit #3HH | 8,600 | 25130567 |
| 607188 | Sep 30, 2005 | Sep 30, 2005 | Devon Energy Production Co, L.P. | Uysaler, Ahmet #1 HH | 9,000 | 25130566 |
| 607169 | Sep 30, 2005 | Sep 30, 2005 | Williams Prod. Gulf Coast, L.P. | Pannell #1HH | 8,380 | 25130563 |
| 607169Amendment | Sep 30, 2005 | Sep 30, 2005 | Reichmann Petroleum Corp. | Pannell #1HH | 8,380 | 25130563 |
| 607168 | Sep 30, 2005 | Sep 30, 2005 | EOG Resources, Inc. | Hilton Unit #2HH | 8,600 | 25130565 |
| 607167 | Sep 30, 2005 | Sep 30, 2005 | EOG Resources, Inc. | Hilton Unit #1HH | 8,600 | 25130564 |
| 607090 | Sep 29, 2005 | Sep 29, 2005 | J-W Operating Co. | Brownlee #2HH | 13,000 | 25130562 |
| 607090Amendment | Sep 29, 2005 | Sep 29, 2005 | J-W Operating Co. | Brownlee #2HH | 13,000 | 25130562 |
| 607052 | Sep 28, 2005 | Sep 28, 2005 | Chesapeake Operating, Inc. | Haley Branch #1HH | 10,000 | 25130561 |
| 606977 | Sep 27, 2005 | Sep 27, 2005 | XTO Energy Inc. | Alford Boone Unit #1HH | 11,000 | 25130557 |
| 606977Amendment | Sep 27, 2005 | Sep 27, 2005 | XTO Energy Inc. | Alford Boone Unit #1HH | 11,000 | 25130557 |
| 606974 | Sep 27, 2005 | Sep 27, 2005 | Chesapeake Operating, Inc. | Cooper #4HH | 9,000 | 25130560 |
| 606950 | Sep 27, 2005 | Sep 27, 2005 | EOG Resources, Inc. | Brown Unit #1HH | 7,500 | 25130559 |
| 606895 | Sep 27, 2005 | Sep 27, 2005 | Arrington,david H. Oil & Gas,inc | Damsel Fly Nymph #1HH | 7,400 | 25130558 |
| 606916 | Sep 26, 2005 | Sep 26, 2005 | Devon Energy Production Co, L.P. | Livingstone #1H | 9,000 | 25130556 |
| 606826 | Sep 23, 2005 | Sep 23, 2005 | Chesapeake Operating, Inc. | East Godley #6HH | 9,000 | 25130553 |
| 606800 | Sep 23, 2005 | Sep 23, 2005 | Sundance Resources, Inc. | Fowler #2HH | 7,500 | 25130552 |
| 606795 | Sep 23, 2005 | Sep 23, 2005 | Chesapeake Operating, Inc. | Brown, E. #4HH | 9,000 | 25130551 |
| 606794 | Sep 23, 2005 | Sep 23, 2005 | EOG Resources, Inc. | Palmer #2HH | 7,300 | 25130554 |
| 606788 | Sep 23, 2005 | Sep 23, 2005 | EOG Resources, Inc. | Teich, Henry #2HH | 7,000 | 25130555 |
| 606739 | Sep 23, 2005 | Sep 23, 2005 | Western Chief Oil & Gas Company | McCutchin #1HH | 7,500 | 25130548 |
| 606700 | Sep 23, 2005 | Sep 23, 2005 | EOG Resources, Inc. | Kolar Unit #2HH | 7,700 | 25130550 |
| 606791 | Sep 22, 2005 | Sep 22, 2005 | Chesapeake Operating, Inc. | Stephens #1HH | 12,000 | 25130549 |
| 606713 | Sep 21, 2005 | Sep 21, 2005 | Burlington Resources O & G Co LP | Georges Creek Ranch #7HH | 9,000 | 25130547 |
| 606535 | Sep 20, 2005 | Sep 20, 2005 | EOG Resources, Inc. | Wilkes Unit #1HH | 7,000 | 25130546 |
| 606532 | Sep 19, 2005 | Sep 19, 2005 | Sundance Resources, Inc. | Hall #1HH | 7,500 | 25130545 |
| 606532Amendment | Sep 19, 2005 | Sep 19, 2005 | Sundance Resources, Inc. | Hall #1HH | 7,900 | 25130545 |
| 606532Amendment | Sep 19, 2005 | Sep 19, 2005 | Sundance Resources, Inc. | Hall #1HH | 7,900 | 25130545 |
| 606532Amendment | Sep 19, 2005 | Sep 19, 2005 | BP Operating Company, LLC | Hall #1HH | 7,900 | 25130545 |
| 606461 | Sep 16, 2005 | Sep 16, 2005 | Willowbend Investments, Inc. | Cosper-Whitehorn Unit #1HH | 7,000 | 25130543 |
| 606461Amendment | Sep 16, 2005 | Sep 16, 2005 | Willowbend Investments, Inc. | Cosper-Whitehorn Unit #1HH | 7,400 | 25130543 |
| 606447 | Sep 16, 2005 | Sep 16, 2005 | EOG Resources, Inc. | Hope Unit #1HH | 8,300 | 25130544 |
| 606303 | Sep 14, 2005 | Sep 14, 2005 | EOG Resources, Inc. | Texas Lime #1HH | 7,500 | 25130542 |
| 606303Amendment | Sep 14, 2005 | Sep 14, 2005 | EOG Resources, Inc. | U.S. Lime #1HH | 7,500 | 25130542 |
| 606261 | Sep 14, 2005 | Sep 14, 2005 | Sundance Resources, Inc. | Fowler #1HH | 7,500 | 25130541 |
| 606237 | Sep 13, 2005 | Sep 13, 2005 | EOG Resources, Inc. | Robert A. King Unit #1RHH | 7,700 | 25130540 |
| 606236 | Sep 13, 2005 | Sep 13, 2005 | EOG Resources, Inc. | Greenway Unit #1HH | 7,700 | 25130539 |
| 606233 | Sep 13, 2005 | Sep 13, 2005 | EOG Resources, Inc. | Core Lab #4HH | 7,700 | 25130538 |
| 606164 | Sep 13, 2005 | Sep 13, 2005 | EOG Resources, Inc. | Cannon Unit #1HH | 9,000 | 25130537 |
| 606153 | Sep 13, 2005 | Sep 13, 2005 | EOG Resources, Inc. | Raam #1HH | 9,000 | 25130536 |
| 606152 | Sep 13, 2005 | Sep 13, 2005 | Stroud Energy, Ltd. | Delutis #2HH | 8,500 | 25130534 |
| 606139 | Sep 13, 2005 | Sep 13, 2005 | Arrington,david H. Oil & Gas,inc | Mayfly Emerger #1HH | 7,000 | 25130535 |
| 606108 | Sep 12, 2005 | Sep 12, 2005 | Chesapeake Operating, Inc. | Falvel #5HH | 9,000 | 25130532 |
| 606069 | Sep 12, 2005 | Sep 12, 2005 | EOG Resources, Inc. | Andrus/Shellenberger Unit #1HH | 7,700 | 25130533 |
| 606105 | Sep 9, 2005 | Sep 9, 2005 | Chesapeake Operating, Inc. | Dixie Ruth #4HH | 9,000 | 25130531 |
| 605996 | Sep 9, 2005 | Sep 9, 2005 | EOG Resources, Inc. | Stewart Unit #1HH | 9,000 | 25130530 |
| 605996Amendment | Sep 9, 2005 | Sep 9, 2005 | EOG Resources, Inc. | Stewart Unit #1HH | 9,000 | 25130530 |
| 606009 | Sep 8, 2005 | Sep 8, 2005 | EOG Resources, Inc. | Wilshire Unit #2HH | 7,700 | 25130527 |
| 606009Amendment | Sep 8, 2005 | Sep 8, 2005 | EOG Resources, Inc. | Wilshire Unit #2HH | 7,700 | 25130527 |