| 622112 | Jul 7, 2006 | Jul 7, 2006 | Dark Horse Operating Co., L.L.C. | Neil #1 | 8,200 | 49736072 |
| 621972 | Jul 5, 2006 | Jul 5, 2006 | Range Production Company | Fletcher #2HH | 11,600 | 49736071 |
| 621881 | Jun 30, 2006 | Jun 30, 2006 | Devon Energy Production Co, L.P. | R. C. Pitts "B" NO 1 Gas Unit #2HH | 9,000 | 49736070 |
| 621825 | Jun 30, 2006 | Jun 30, 2006 | Aruba Petroleum, Inc. | Rutherford, Bennie D. #3 | 9,000 | 49736069 |
| 621698 | Jun 29, 2006 | Jun 29, 2006 | Devon Energy Production Co, L.P. | General Land Co. Gas Unit #5HH | 9,000 | 49736068 |
| 621691 | Jun 28, 2006 | Jun 28, 2006 | Devon Energy Production Co, L.P. | C. M. Smith #3 | 9,000 | 49736067 |
| 621668 | Jun 27, 2006 | Jun 27, 2006 | Burlington Resources O & G Co LP | Crystelle Waggoner Gas Unit #41B | 9,000 | 49736066 |
| 621635 | Jun 27, 2006 | Jun 27, 2006 | Burlington Resources O & G Co LP | C. W. "A" #31 | 9,000 | 49736065 |
| 621383 | Jun 21, 2006 | Jun 21, 2006 | Devon Energy Production Co, L.P. | Acola, Sam "C" #5 | 9,000 | 49736064 |
| 621307 | Jun 20, 2006 | Jun 20, 2006 | Devon Energy Production Co, L.P. | Jack Wilson #6HH | 9,000 | 49736063 |
| 621299 | Jun 20, 2006 | Jun 20, 2006 | Cal-Tex Fossil, L.L.C. | Taylor & Mauldin #3 | 8,500 | 49736062 |
| 621290 | Jun 20, 2006 | Jun 20, 2006 | Devon Energy Production Co, L.P. | Griffeth #9 HH | 9,000 | 49736061 |
| 620997 | Jun 14, 2006 | Jun 14, 2006 | Roil Mineral & Land Co. | Smith, T.M. #9 | 8,000 | 49736060 |
| 620956 | Jun 14, 2006 | Jun 14, 2006 | Devon Energy Production Co, L.P. | R. S. Garrett -C- #6HH | 9,000 | 49736059 |
| 620503 | Jun 14, 2006 | Jun 14, 2006 | Devon Energy Production Co, L.P. | McCurdy, Floyd #9 | 8,200 | 49736058 |
| 619726 | Jun 14, 2006 | Jun 14, 2006 | CD Consulting & Operating Co. | Barbara #3 | 6,300 | 49732430 |
| 620685 | Jun 9, 2006 | Jun 9, 2006 | Devon Energy Production Co, L.P. | J. R. Witt #3 | 4,700 | 49732102 |
| 620515 | Jun 7, 2006 | Jun 7, 2006 | Roil Mineral & Land Co. | BLM 1237 #2 | 7,700 | 49736057 |
| 620533 | Jun 6, 2006 | Jun 6, 2006 | Citrus Energy Corporation | Smith, D. L. #1 | 8,000 | 49736056 |
| 620486 | Jun 5, 2006 | Jun 5, 2006 | Devon Energy Production Co, L.P. | McCurdy, Floyd #8 D | 8,200 | 49736055 |
| 620434 | Jun 5, 2006 | Jun 5, 2006 | Burlington Resources O & G Co LP | Downe Unit #8 | 9,000 | 49736054 |
| 620432 | Jun 5, 2006 | Jun 5, 2006 | Burlington Resources O & G Co LP | Downe Unit #7 | 9,000 | 49736053 |
| 620392 | Jun 5, 2006 | Jun 5, 2006 | Devon Energy Production Co, L.P. | Johnson, W. D. "A" #29H | 9,000 | 49736052 |
| 620307 | Jun 2, 2006 | Jun 2, 2006 | Devon Energy Production Co, L.P. | Acola, Sam "A" #11 | 9,000 | 49736051 |
| 620305 | Jun 2, 2006 | Jun 2, 2006 | Devon Energy Production Co, L.P. | Acola, Sam "A" #10 | 9,000 | 49736050 |
| 619728 | Jun 2, 2006 | Jun 2, 2006 | CD Consulting & Operating Co. | Barbara #5 | 5,900 | 49731887 |
| 619727 | Jun 2, 2006 | Jun 2, 2006 | CD Consulting & Operating Co. | Barbara #4 | 6,000 | 49730438 |
| 619719 | May 31, 2006 | May 31, 2006 | Lakota Energy, Ltd. | Lanham, L. N. #5 | 7,950 | 49736049 |
| 619899 | May 25, 2006 | May 25, 2006 | Burlington Resources O & G Co LP | C. W. "A" #30 | 9,000 | 49736048 |
| 619629 | May 22, 2006 | May 22, 2006 | Devon Energy Production Co, L.P. | Morris, J. S. Dr. #16H | 9,000 | 49736047 |
| 619572 | May 19, 2006 | May 19, 2006 | Devon Energy Production Co, L.P. | Cox, J. R. GU #4HH | 9,000 | 49736046 |
| 619512 | May 19, 2006 | May 19, 2006 | Aruba Petroleum, Inc. | Wilborn #1 | 9,000 | 49736044 |
| 619451 | May 17, 2006 | May 17, 2006 | Devon Energy Production Co, L.P. | Ham, J. A. #8 HH | 9,000 | 49736043 |
| 619451Amendment | May 17, 2006 | May 17, 2006 | Devon Energy Production Co, L.P. | Ham, J. A. #8 HH | 9,000 | 49736043 |
| 619451Amendment | May 17, 2006 | May 17, 2006 | Devon Energy Production Co, L.P. | Ham, J. A. #8 HH | 9,000 | 49736043 |
| 619439 | May 17, 2006 | May 17, 2006 | Aruba Petroleum, Inc. | Wilborn #2 | 9,000 | 49736042 |
| 619260 | May 16, 2006 | May 16, 2006 | Burlington Resources O & G Co LP | Crystelle Waggoner Gas Unit #36B | 9,000 | 49736041 |
| 619248 | May 15, 2006 | May 15, 2006 | Sundance Resources, Inc. | Conley Heirs #1HH | 7,500 | 49736040 |
| 619115 | May 11, 2006 | May 11, 2006 | Cal-Tex Fossil, L.L.C. | Taylor-Mauldin #1 | 8,500 | 49736039 |
| 619112 | May 11, 2006 | May 11, 2006 | Cal-Tex Fossil, L.L.C. | Taylor & Mauldin #2 | 8,500 | 49736038 |
| 618619 | May 11, 2006 | May 11, 2006 | Western Chief Oil & Gas Company | Garland #2 | 7,000 | 49735686 |
| 616412 | May 11, 2006 | May 11, 2006 | Encana Oil & Gas(usa) Inc. | Blake #3HH | 9,000 | 49736005 |
| 618877 | May 8, 2006 | May 8, 2006 | Western Chief Oil & Gas Company | Pegues #1R | 9,000 | 49736037 |
| 618589 | May 3, 2006 | May 3, 2006 | Tema Oil and Gas Company | Watts, Callie #2H | 11,500 | 49736036 |
| 618273 | May 2, 2006 | May 2, 2006 | Stroud Energy, Ltd. | Fletcher #4A | 8,500 | 49736032 |
| 618272 | May 2, 2006 | May 2, 2006 | Stroud Energy, Ltd. | Fletcher #3A | 8,500 | 49736031 |
| 618272Amendment | May 2, 2006 | May 2, 2006 | Range Production Company | Fletcher #3A | 9,100 | 49736031 |
| 618461 | May 1, 2006 | May 1, 2006 | Maverick Operating Company, LLC | Flowers #1HH | 7,000 | 49736035 |
| 618241 | May 1, 2006 | May 1, 2006 | Chief Oil & Gas LLC | Burress, Etta #1HH | 8,900 | 49736030 |
| 618386 | Apr 28, 2006 | Apr 28, 2006 | Ryder Scott Management, LLC | Acola #4 | 7,800 | 49736034 |
| 618384 | Apr 28, 2006 | Apr 28, 2006 | Ryder Scott Management, LLC | Acola #3 | 7,800 | 49736033 |
| 618266 | Apr 27, 2006 | Apr 27, 2006 | Devon Energy Production Co, L.P. | M. L. Patterson #6 | 9,000 | 49734860 |
| 618183 | Apr 25, 2006 | Apr 25, 2006 | Devon Energy Production Co, L.P. | Wise County Poor Farms #B 5HH | 9,000 | 49736029 |
| 618156 | Apr 25, 2006 | Apr 25, 2006 | Devon Energy Production Co, L.P. | Garrett, Rufus #20HH | 9,000 | 49736028 |
| 618156Amendment | Apr 25, 2006 | Apr 25, 2006 | Devon Energy Production Co, L.P. | Garrett, Rufus #20HH | 9,000 | 49736028 |
| 618094 | Apr 25, 2006 | Apr 25, 2006 | Devon Energy Production Co, L.P. | Meadows-Portwood #1HH | 9,000 | 49736027 |
| 617736 | Apr 25, 2006 | Apr 25, 2006 | Denbury Onshore, LLC | B.B. & Pauline Unit #2H | 7,100 | 49736025 |
| 617736Amendment | Apr 25, 2006 | Apr 25, 2006 | Denbury Onshore, LLC | B.B. & Pauline Unit #2H | 7,100 | 49736025 |
| 618016 | Apr 24, 2006 | Apr 24, 2006 | Aruba Petroleum, Inc. | Covington #1 | 9,000 | 49736026 |
| 617847 | Apr 19, 2006 | Apr 19, 2006 | Devon Energy Production Co, L.P. | Hicks, Lide #3 | 9,000 | 49736024 |
| 617847Amendment | Apr 19, 2006 | Apr 19, 2006 | Devon Energy Production Co, L.P. | Hicks, Lide #3 | 9,000 | 49736024 |
| 617809 | Apr 19, 2006 | Apr 19, 2006 | Devon Energy Production Co, L.P. | Bridges, W. B. Gas Unit #1HH | 9,000 | 49736023 |
| 617807 | Apr 19, 2006 | Apr 19, 2006 | Devon Energy Production Co, L.P. | J. R. Witt Gas Unit -A- #8HH | 9,000 | 49736022 |
| 617807Amendment | Apr 19, 2006 | Apr 19, 2006 | Devon Energy Production Co, L.P. | J. R. Witt Gas Unit -A- #8HH | 9,000 | 49736022 |
| 617804 | Apr 19, 2006 | Apr 19, 2006 | Devon Energy Production Co, L.P. | Burk #3 | 9,000 | 49734680 |
| 617778 | Apr 19, 2006 | Apr 19, 2006 | Star of Texas Energy Srvs, Inc. | Malcolm-Star #1HH | 8,700 | 49736021 |
| 617463 | Apr 18, 2006 | Apr 18, 2006 | Devon Energy Production Co, L.P. | Patterson, M. L. #8D | 9,000 | 49736018 |
| 617586 | Apr 13, 2006 | Apr 13, 2006 | Star of Texas Energy Srvs, Inc. | RSK-Star Vaughn Unit #7 | 8,000 | 49736020 |
| 617552 | Apr 13, 2006 | Apr 13, 2006 | Devon Energy Production Co, L.P. | Txi Gas Unit #7 D | 9,000 | 49736019 |
| 617461 | Apr 12, 2006 | Apr 12, 2006 | Devon Energy Production Co, L.P. | Patterson, M. L. #7D | 9,000 | 49736017 |
| 617422 | Apr 12, 2006 | Apr 12, 2006 | Denbury Onshore, LLC | McDonald Kann #1H | 7,100 | 49736016 |
| 617178 | Apr 11, 2006 | Apr 11, 2006 | Stratagas, Inc. | Dean, L. 'B' #2 | 1,350 | 49735758 |
| 617176 | Apr 11, 2006 | Apr 11, 2006 | Stratagas, Inc. | Dean, L. 'A' #1 | 1,350 | 49735583 |
| 617221 | Apr 7, 2006 | Apr 7, 2006 | Devon Energy Production Co, L.P. | Wcco 1 - Stevenson, Doris #9 D | 9,000 | 49736015 |
| 617221Amendment | Apr 7, 2006 | Apr 7, 2006 | Devon Energy Production Co, L.P. | Wcco 1 - Stevenson, Doris #9 D | 9,000 | 49736015 |
| 617123 | Apr 7, 2006 | Apr 7, 2006 | Devon Energy Production Co, L.P. | J. Slimp Gas Unit No. 1 #11 HH | 9,000 | 49736014 |
| 617169 | Apr 6, 2006 | Apr 6, 2006 | Tema Oil and Gas Company | Oates Gas Unit #7H | 8,500 | 49736013 |
| 617094 | Apr 6, 2006 | Apr 6, 2006 | Devon Energy Production Co, L.P. | Beall Unit #2 HH | 9,000 | 49736012 |
| 617068 | Apr 6, 2006 | Apr 6, 2006 | Devon Energy Production Co, L.P. | Rose, Dennis R. #1 | 9,000 | 49736011 |
| 616961 | Apr 5, 2006 | Apr 5, 2006 | Stroud Energy, Ltd. | Fletcher #1HH | 9,100 | 49736009 |
| 616967 | Apr 4, 2006 | Apr 4, 2006 | Devon Energy Production Co, L.P. | Slay, C. W. #11 HH | 9,000 | 49736010 |
| 616967Amendment | Apr 4, 2006 | Apr 4, 2006 | Devon Energy Production Co, L.P. | Slay, C. W. #11 HH | 9,000 | 49736010 |
| 616861 | Apr 3, 2006 | Apr 3, 2006 | Aruba Petroleum, Inc. | Bryce #1 | 9,000 | 49736008 |
| 616814 | Mar 31, 2006 | Mar 31, 2006 | Devon Energy Production Co, L.P. | Straight, Wayne #1 D | 9,000 | 49736007 |
| 616814Amendment | Mar 31, 2006 | Mar 31, 2006 | Devon Energy Production Co, L.P. | Straight, Wayne #1 D | 9,000 | 49736007 |
| 616610 | Mar 29, 2006 | Mar 29, 2006 | Primexx Operating Corporation | Cleveland #1HH | 7,400 | 49736006 |
| 616501 | Mar 27, 2006 | Mar 27, 2006 | XTO Energy Inc. | Ferguson #1HH | 11,000 | 49736004 |
| 616501Amendment | Mar 27, 2006 | Mar 27, 2006 | XTO Energy Inc. | Ferguson #1HH | 10,000 | 49736004 |
| 616470 | Mar 27, 2006 | Mar 27, 2006 | Denbury Onshore, LLC | B.B. & Pauline Unit #1H | 7,000 | 49736003 |
| 616470Amendment | Mar 27, 2006 | Mar 27, 2006 | Denbury Onshore, LLC | B. B. & Pauline Unit #1H | 7,000 | 49736003 |
| 616273 | Mar 23, 2006 | Mar 23, 2006 | Western Chief Oil & Gas Company | Pegues #1 | 9,000 | 49736002 |
| 616090 | Mar 20, 2006 | Mar 20, 2006 | WG Operating, Inc. | Sealy "B" #6 | 5,700 | 49736001 |
| 615595 | Mar 20, 2006 | Mar 20, 2006 | Key Energy Services, Inc.-NTD | Denton Creek Farms #2WD | 11,000 | 49735998 |
| 615559 | Mar 20, 2006 | Mar 20, 2006 | Lakota Energy, Ltd. | Holmes #2 | 7,450 | 49735997 |
| 615939 | Mar 16, 2006 | Mar 16, 2006 | Devon Energy Production Co, L.P. | Acola,sam "B" #8 D | 9,000 | 49736000 |
| 615930 | Mar 16, 2006 | Mar 16, 2006 | Gonzenbach, Glen D | Anadarko #1 | 6,500 | 49735999 |
| 615466 | Mar 15, 2006 | Mar 15, 2006 | Encana Oil & Gas(usa) Inc. | Reed-Hathorn #9HH | 9,000 | 49735996 |
| 615593 | Mar 9, 2006 | Mar 9, 2006 | Aruba Petroleum, Inc. | Bussey #1 | 9,000 | 49735995 |
| 615296 | Mar 6, 2006 | Mar 6, 2006 | Ebs Oil & Gas Partners Op.co.,lp | Knox, Martha #3 | 8,900 | 49735994 |
| 615296Amendment | Mar 6, 2006 | Mar 6, 2006 | Enexco, Inc. | Enexco, Inc. Knox #1 | 9,000 | 49735994 |