| 627062 | Oct 16, 2006 | Oct 16, 2006 | Denbury Onshore, LLC | Trwd #A 3H | 7,085 | 49736149 |
| 627062Amendment | Oct 16, 2006 | Oct 16, 2006 | Denbury Onshore, LLC | Trwd #A 3H | 7,085 | 49736149 |
| 627062Amendment | Oct 16, 2006 | Oct 16, 2006 | Denbury Onshore, LLC | Trwd #A 3H | 7,085 | 49736149 |
| 627183 | Oct 11, 2006 | Oct 11, 2006 | Aspen Operating Company, L.L.C. | East Unit #301 | 6,540 | 49700015 |
| 627217 | Oct 10, 2006 | Oct 10, 2006 | Ryder Scott Management, LLC | Acola #7 | 7,800 | 49736148 |
| 626845 | Oct 10, 2006 | Oct 10, 2006 | Burlington Resources O & G Co LP | Crystelle Waggoner Gas Unit #39BD | 9,000 | 49736146 |
| 627098 | Oct 5, 2006 | Oct 5, 2006 | Devon Energy Production Co, L.P. | Clough, Michael #6 | 9,000 | 49736147 |
| 626978 | Oct 5, 2006 | Oct 5, 2006 | Devon Energy Production Co, L.P. | Wcco 4 - Morris, Ada #22 | 9,000 | 49736145 |
| 626601 | Oct 4, 2006 | Oct 4, 2006 | Cal-Tex Fossil, L.L.C. | Taylor & Mauldin #4 | 8,500 | 49736139 |
| 626835 | Oct 2, 2006 | Oct 2, 2006 | Burlington Resources O & G Co LP | Crystelle Waggoner Gas Unit #38BD | 9,000 | 49736143 |
| 626823 | Oct 2, 2006 | Oct 2, 2006 | Rubis Oil, Inc. | Younger, C R #1 | 6,200 | 49736141 |
| 626686 | Oct 2, 2006 | Oct 2, 2006 | Devon Energy Production Co, L.P. | General Land Co. Gas Unit #6HH | 9,000 | 49736142 |
| 626793 | Sep 29, 2006 | Sep 29, 2006 | Devon Energy Production Co, L.P. | Finlayson-Finlayson A(sa) #1HH | 9,000 | 49736140 |
| 626756 | Sep 29, 2006 | Sep 29, 2006 | Aspen Operating Company, L.L.C. | Octodog #4 | 6,775 | 49732559 |
| 626756Amendment | Sep 29, 2006 | Sep 29, 2006 | Aspen Operating Company, L.L.C. | Octodog #4 | 6,775 | 49732559 |
| 626362 | Sep 29, 2006 | Sep 29, 2006 | McCutchin Petroleum Corporation | Lowrance, Gene #7 | 6,000 | 49736138 |
| 626362Amendment | Sep 29, 2006 | Sep 29, 2006 | McCutchin Petroleum Corporation | Lowrance, Gene #7 | 6,000 | 49736138 |
| 626222 | Sep 27, 2006 | Sep 27, 2006 | Merit Energy Company | Walker, T. S. "A" #1HH | 9,000 | 49736129 |
| 626205 | Sep 27, 2006 | Sep 27, 2006 | Texland Petroleum, L.P. | Hill #1 | 7,200 | 49733805 |
| 626205Amendment | Sep 27, 2006 | Sep 27, 2006 | Texland Petroleum, L.P. | Hill #1 | 7,200 | 49733805 |
| 626482 | Sep 25, 2006 | Sep 25, 2006 | Devon Energy Production Co, L.P. | Pavillard, Albert GU B #4 D | 9,000 | 49736137 |
| 626482Amendment | Sep 25, 2006 | Sep 25, 2006 | Devon Energy Production Co, L.P. | Pavillard, Albert GU B #4 D | 9,000 | 49736137 |
| 626480 | Sep 25, 2006 | Sep 25, 2006 | Devon Energy Production Co, L.P. | Pavillard, Albert GU B #3 D | 9,000 | 49736136 |
| 626413 | Sep 22, 2006 | Sep 22, 2006 | Sanders Oil & Gas, Ltd. | Shirley #3HH | 9,000 | 49736135 |
| 626379 | Sep 22, 2006 | Sep 22, 2006 | Devon Energy Production Co, L.P. | Griffin Trust #1 HH | 9,000 | 49736134 |
| 626320 | Sep 22, 2006 | Sep 22, 2006 | Rubis Oil, Inc. | Cable #1 | 6,200 | 49736131 |
| 626163 | Sep 22, 2006 | Sep 22, 2006 | Denbury Onshore, LLC | Trwd #B 4H | 7,200 | 49736133 |
| 626078 | Sep 22, 2006 | Sep 22, 2006 | Merit Energy Company | Norton, E. E. Unit 2 #2HH | 9,000 | 49736128 |
| 626335 | Sep 21, 2006 | Sep 21, 2006 | Devon Energy Production Co, L.P. | Griffeth, June L. Gas Unit "A" #14 HH | 9,000 | 49736132 |
| 626322 | Sep 21, 2006 | Sep 21, 2006 | Rubis Oil, Inc. | Younger, P. C. #2 | 6,200 | 49736130 |
| 626231 | Sep 20, 2006 | Sep 20, 2006 | Devon Energy Production Co, L.P. | Dodson-Johnson Unit #2 | 9,000 | 49736127 |
| 626231Amendment | Sep 20, 2006 | Sep 20, 2006 | Devon Energy Production Co, L.P. | Dodson-Johnson Unit #2 | 9,000 | 49736127 |
| 626018 | Sep 18, 2006 | Sep 18, 2006 | Western Chief Oil & Gas Company | Perkins Unit #1HH | 7,500 | 49736126 |
| 621600 | Sep 18, 2006 | Sep 18, 2006 | Seely Oil Company | Champion "A" #4 | 8,056 | 49734978 |
| 625994 | Sep 15, 2006 | Sep 15, 2006 | Devon Energy Production Co, L.P. | Wcco 4 -Miller, William GU B-2 #16 HH | 9,000 | 49736125 |
| 625993 | Sep 15, 2006 | Sep 15, 2006 | Devon Energy Production Co, L.P. | Wcco 4 -Miller, William GU B-2 #15 HH | 9,000 | 49736124 |
| 625993Amendment | Sep 15, 2006 | Sep 15, 2006 | Devon Energy Production Co, L.P. | Wcco 4 -Miller, William GU B-2 #15 HH | 9,000 | 49736124 |
| 625992 | Sep 15, 2006 | Sep 15, 2006 | Devon Energy Production Co, L.P. | Wcco 4 -Miller, William GU B-2 #14 HH | 9,000 | 49736123 |
| 625991 | Sep 15, 2006 | Sep 15, 2006 | Devon Energy Production Co, L.P. | Wcco 4 -Miller, William GU B-1 #14 HH | 9,000 | 49736122 |
| 625990 | Sep 15, 2006 | Sep 15, 2006 | Devon Energy Production Co, L.P. | Wcco 4 - Miller, William GU B-1 #13 HH | 9,000 | 49736121 |
| 625803 | Sep 12, 2006 | Sep 12, 2006 | Burlington Resources O & G Co LP | Fox #4HH | 9,000 | 49736120 |
| 625757 | Sep 12, 2006 | Sep 12, 2006 | Denbury Onshore, LLC | Trwd #F 3H | 7,200 | 49736119 |
| 625186 | Sep 12, 2006 | Sep 12, 2006 | Devon Energy Production Co, L.P. | Askey, W. A. #5 | 9,000 | 49736115 |
| 625186Amendment | Sep 12, 2006 | Sep 12, 2006 | Devon Energy Production Co, L.P. | Askey, W. A. #5 | 9,000 | 49736115 |
| 625185 | Sep 12, 2006 | Sep 12, 2006 | Devon Energy Production Co, L.P. | Askey, W. A. #4 | 9,000 | 49736114 |
| 625619 | Sep 8, 2006 | Sep 8, 2006 | Devon Energy Production Co, L.P. | Bun Johnson GU No. 1 (Deep) #5HH | 9,000 | 49736118 |
| 625321 | Sep 7, 2006 | Sep 7, 2006 | Excel Oil & Gas, Inc. | Coulter #1 | 6,087 | 49735501 |
| 625395 | Sep 5, 2006 | Sep 5, 2006 | Devon Energy Production Co, L.P. | C. H. Grollman Gas Unit #1 #4 | 9,000 | 49736117 |
| 625261 | Sep 5, 2006 | Sep 5, 2006 | Aspen Operating Company, L.L.C. | Caughlin Strawn (East Seg) Unit #401 | 4,057 | 49701236 |
| 625305 | Aug 31, 2006 | Aug 31, 2006 | Devon Energy Production Co, L.P. | Decatur Gas Unit "A" #2H | 9,000 | 49736116 |
| 625176 | Aug 30, 2006 | Aug 30, 2006 | Devon Energy Production Co, L.P. | Wcco 1 - Sims, Thomas P. "A" #5 HH | 9,000 | 49736113 |
| 624951 | Aug 30, 2006 | Aug 30, 2006 | Merit Energy Company | Daggett, W. H. A-2 #1HH | 9,000 | 49736111 |
| 625156 | Aug 29, 2006 | Aug 29, 2006 | Aspen Operating Company, L.L.C. | Caughlin Strawn (East Seg) Unit #1701 | 6,075 | 49701019 |
| 625002 | Aug 28, 2006 | Aug 28, 2006 | Range Production Company | Fletcher #6HH | 11,000 | 49736112 |
| 625002Amendment | Aug 28, 2006 | Aug 28, 2006 | Range Production Company | Fletcher #6HH | 11,000 | 49736112 |
| 624993 | Aug 25, 2006 | Aug 25, 2006 | Devon Energy Production Co, L.P. | McAlister, O. H. #20 HH | 9,000 | 49736110 |
| 624965 | Aug 25, 2006 | Aug 25, 2006 | Westside Energy Op. Co., LP | Fortenberry #2HH | 8,500 | 49736109 |
| 624793 | Aug 23, 2006 | Aug 23, 2006 | Devon Energy Production Co, L.P. | Wilson, M. S. #2HH | 9,000 | 49736108 |
| 624572 | Aug 23, 2006 | Aug 23, 2006 | Denbury Onshore, LLC | Trwd #A 2H | 7,200 | 49736107 |
| 624572Amendment | Aug 23, 2006 | Aug 23, 2006 | Denbury Onshore, LLC | Trwd #A 2H | 7,200 | 49736107 |
| 624425 | Aug 21, 2006 | Aug 21, 2006 | Devon Energy Production Co, L.P. | Gage Trustee #3 | 9,000 | 49734679 |
| 624372 | Aug 21, 2006 | Aug 21, 2006 | Burlington Resources O & G Co LP | Fox #10 | 9,000 | 49736106 |
| 624261 | Aug 21, 2006 | Aug 21, 2006 | Richey, Ray Management Co., Inc. | Guthrie "A" #9 | 8,500 | 49736102 |
| 624176 | Aug 18, 2006 | Aug 18, 2006 | Richey, Ray Management Co., Inc. | Guthrie "A" #8 | 8,500 | 49736101 |
| 624242 | Aug 16, 2006 | Aug 16, 2006 | Devon Energy Production Co, L.P. | Rufus Garrett (SA) #22HH | 9,000 | 49736099 |
| 624087 | Aug 16, 2006 | Aug 16, 2006 | Devon Energy Production Co, L.P. | Hoyl, Dale #5 HH | 9,000 | 49736098 |
| 624371 | Aug 15, 2006 | Aug 15, 2006 | Burlington Resources O & G Co LP | Fox #9D | 9,000 | 49736105 |
| 624371Amendment | Aug 15, 2006 | Aug 15, 2006 | Burlington Resources O & G Co LP | Fox #9D | 9,000 | 49736105 |
| 624349 | Aug 15, 2006 | Aug 15, 2006 | Denbury Onshore, LLC | Trwd #F 2H | 7,200 | 49736104 |
| 624349Amendment | Aug 15, 2006 | Aug 15, 2006 | Denbury Onshore, LLC | Trwd #F 2H | 7,200 | 49736104 |
| 624294 | Aug 15, 2006 | Aug 15, 2006 | Aruba Petroleum, Inc. | Frye #1401 | 9,000 | 49736103 |
| 624256 | Aug 14, 2006 | Aug 14, 2006 | Dune Operating Company | Pitts "A" #2 | 9,500 | 49736100 |
| 623738 | Aug 9, 2006 | Aug 9, 2006 | Devon Energy Production Co, L.P. | Adele Clough Gas Unit No. 2 #25 | 9,000 | 49736093 |
| 623735 | Aug 9, 2006 | Aug 9, 2006 | Devon Energy Production Co, L.P. | Adele Clough Gas Unit No. 2 #24 | 9,000 | 49736094 |
| 624052 | Aug 8, 2006 | Aug 8, 2006 | Devon Energy Production Co, L.P. | Acola, Sam "B" #5 | 9,000 | 49736097 |
| 624004 | Aug 8, 2006 | Aug 8, 2006 | Devon Energy Production Co, L.P. | William Bennett #16HH | 9,000 | 49736096 |
| 623991 | Aug 8, 2006 | Aug 8, 2006 | Merit Energy Company | Daggett, W. H. B-1 #1HH | 9,000 | 49736095 |
| 623617 | Aug 8, 2006 | Aug 8, 2006 | Burlington Resources O & G Co LP | Fox #11 | 9,000 | 49736092 |
| 623746 | Aug 3, 2006 | Aug 3, 2006 | Devon Energy Production Co, L.P. | J. H. Golaz, Jr. #1HH | 9,000 | 49736091 |
| 623392 | Jul 28, 2006 | Jul 28, 2006 | Aspen Operating Company, L.L.C. | Octodog #3 | 6,500 | 49731770 |
| 623392Amendment | Jul 28, 2006 | Jul 28, 2006 | Aspen Operating Company, L.L.C. | Octodog #3 | 6,500 | 49731770 |
| 622980 | Jul 27, 2006 | Jul 27, 2006 | Devon Energy Production Co, L.P. | Bryan "D" #9 | 9,000 | 49736085 |
| 623025 | Jul 25, 2006 | Jul 25, 2006 | Ryder Scott Management, LLC | Acola #6 | 7,800 | 49736087 |
| 623022 | Jul 25, 2006 | Jul 25, 2006 | Ryder Scott Management, LLC | Acola #5 | 7,800 | 49736088 |
| 623116 | Jul 24, 2006 | Jul 24, 2006 | Burlington Resources O & G Co LP | Fox #8 | 9,000 | 49736086 |
| 622913 | Jul 20, 2006 | Jul 20, 2006 | Devon Energy Production Co, L.P. | Jeff S. Fox Gas Unit No. 1 #6HH | 9,000 | 49736084 |
| 622913Amendment | Jul 20, 2006 | Jul 20, 2006 | Devon Energy Production Co, L.P. | Jeff S. Fox Gas Unit No. 1 #6HH | 9,000 | 49736084 |
| 622908 | Jul 20, 2006 | Jul 20, 2006 | Devon Energy Production Co, L.P. | Jeff S. Fox Gas Unit No. 1 #5HH | 9,000 | 49736083 |
| 622897 | Jul 20, 2006 | Jul 20, 2006 | Denbury Onshore, LLC | Stancil Roberts #3H | 6,930 | 49736082 |
| 622893 | Jul 20, 2006 | Jul 20, 2006 | Devon Energy Production Co, L.P. | Johnson, W. D. "B" #33 | 9,000 | 49736080 |
| 622893Amendment | Jul 20, 2006 | Jul 20, 2006 | Devon Energy Production Co, L.P. | Johnson, W. D. "B" #33 | 9,000 | 49736080 |
| 622892 | Jul 20, 2006 | Jul 20, 2006 | Devon Energy Production Co, L.P. | Johnson, W. D. "B" #31 | 9,000 | 49736081 |
| 622892Amendment | Jul 20, 2006 | Jul 20, 2006 | Devon Energy Production Co, L.P. | Johnson, W. D. "B" #31 | 9,000 | 49736081 |
| 622632 | Jul 19, 2006 | Jul 19, 2006 | Lakota Energy, Ltd. | Black, Tom #2 | 8,050 | 49736079 |
| 622348 | Jul 11, 2006 | Jul 11, 2006 | Primexx Operating Corporation | Rhine Gas Unit #2HH | 7,900 | 49736077 |
| 622266 | Jul 10, 2006 | Jul 10, 2006 | Devon Energy Production Co, L.P. | Garrett, R. S. "B" #11HH | 9,000 | 49736076 |
| 622255 | Jul 10, 2006 | Jul 10, 2006 | Devon Energy Production Co, L.P. | Smith, C. M. #5 | 9,000 | 49736075 |
| 622255Amendment | Jul 10, 2006 | Jul 10, 2006 | Devon Energy Production Co, L.P. | Smith, C. M. #5 | 9,000 | 49736075 |
| 622208 | Jul 10, 2006 | Jul 10, 2006 | Burlington Resources O & G Co LP | Askey C #5D | 9,000 | 49736074 |
| 622204 | Jul 10, 2006 | Jul 10, 2006 | Burlington Resources O & G Co LP | Askey C #4 | 9,000 | 49736073 |