| 663933 | Jun 18, 2008 | Jun 18, 2008 | Zachry Exploration, Ltd. | Robinson-Buckeye Unit #1 | 8,000 | 23933464 |
| 659796 | Jun 18, 2008 | Jun 18, 2008 | Premier Natural Resources, LLC | Weise, Della #1 | 6,361 | 23900543 |
| 659568 | Jun 10, 2008 | Jun 10, 2008 | Ambassador Petroleum, Inc. | Schomburg-Navidad River Unit #4 | 7,013 | 23931481 |
| 658330 | Jun 10, 2008 | Jun 10, 2008 | Hilcorp Energy Company | West Ranch "A" #481 | 6,203 | 23931240 |
| 662412 | Jun 7, 2008 | Jun 7, 2008 | SE USA Operating, Inc. | McDowell "A" #2 | 8,000 | 23933462 |
| 661649 | Jun 3, 2008 | Jun 3, 2008 | Hilcorp Energy Company | Vanderbilt State #22 | 7,390 | 23902909 |
| 659811 | Jun 2, 2008 | Jun 2, 2008 | Premier Natural Resources, LLC | Spacek, Frank #11 | 6,612 | 23932154 |
| 658715 | Jun 2, 2008 | Jun 2, 2008 | Ambassador Petroleum, Inc. | Graves, T.A. #5 | 6,195 | 23930777 |
| 658715Amendment | Jun 2, 2008 | Jun 2, 2008 | Ambassador Petroleum, Inc. | Graves, T.A. #5 | 6,195 | 23930777 |
| 661519 | May 28, 2008 | May 28, 2008 | Common Resources L.L.C. | Ward #1 | 10,500 | 23933461 |
| 661419 | May 28, 2008 | May 28, 2008 | Tag Operating Company, Inc. | Amoco Fee #2 | 10,700 | 23932590 |
| 660891 | May 21, 2008 | May 21, 2008 | Hilcorp Energy Company | Toney, M. H. Mrs. #37 | 7,330 | 23902847 |
| 660890 | May 20, 2008 | May 20, 2008 | Tri-C Resources, Inc. | Thomas #3 | 4,800 | 23933459 |
| 660471 | May 9, 2008 | May 9, 2008 | Sue-Ann Operating, L.C. | Mauritz Trust #1 | 6,800 | 23933458 |
| 660303 | May 7, 2008 | May 7, 2008 | Drillmar Operating Company | N. Francitas SWD #1 | 3,000 | 23933457 |
| 659874 | Apr 30, 2008 | Apr 30, 2008 | Hollimon Oil Corporation | Traylor Estate #1 | 12,500 | 23933455 |
| 659867 | Apr 30, 2008 | Apr 30, 2008 | Tri-C Resources, Inc. | Yaussi #2 | 5,450 | 23933454 |
| 659861 | Apr 30, 2008 | Apr 30, 2008 | Tri-C Resources, Inc. | Yaussi #1 | 5,400 | 23933453 |
| 659804 | Apr 30, 2008 | Apr 30, 2008 | Premier Natural Resources, LLC | Power, James #2 | 4,850 | 23900556 |
| 659543 | Apr 30, 2008 | Apr 30, 2008 | Coastline Exploration, Inc. | Hart, W. F. #1 | 5,000 | 23933456 |
| 659082 | Apr 28, 2008 | Apr 28, 2008 | Gec Operating, Inc. | Cihal #1 | 7,000 | 23933452 |
| 659387 | Apr 26, 2008 | Apr 26, 2008 | Ambassador Petroleum, Inc. | Schomburg #2 | 6,864 | 23903381 |
| 659141 | Apr 24, 2008 | Apr 24, 2008 | Acock/Anaqua Operating Co., LP | Brooking, G. T. #45 | 9,500 | 23933451 |
| 659141Amendment | Apr 24, 2008 | Apr 24, 2008 | Acock/Anaqua Operating Co., LP | Brooking, G. T. #45 | 9,500 | 23933451 |
| 659033 | Apr 23, 2008 | Apr 23, 2008 | Sue-Ann Operating, L.C. | Strauss #18 | 5,400 | 23932913 |
| 658215 | Apr 23, 2008 | Apr 23, 2008 | O'Tool Oil & Gas, LLC | Gleneagles #2 | 4,700 | 23933448 |
| 659006 | Apr 22, 2008 | Apr 22, 2008 | Sue-Ann Operating, L.C. | Strauss #19 | 5,200 | 23932914 |
| 656416 | Apr 16, 2008 | Apr 16, 2008 | Ambassador Petroleum, Inc. | Graves, T.A. #2 | 8,011 | 23901770 |
| 656409 | Apr 16, 2008 | Apr 16, 2008 | Ambassador Petroleum, Inc. | Hackbarth #1 | 5,242 | 23901744 |
| 656053 | Apr 16, 2008 | Apr 16, 2008 | Cordele Development Corporation | Edmonia Pressly #16 | 3,000 | 23933450 |
| 656053Amendment | Apr 16, 2008 | Apr 16, 2008 | Cordele Development Corporation | Edmonia Pressly #16 | 3,000 | 23933450 |
| 655914 | Apr 14, 2008 | Apr 14, 2008 | Cordele Development Corporation | Pressly, Edmonia #15 | 3,000 | 23933449 |
| 658334 | Apr 11, 2008 | Apr 11, 2008 | Hilcorp Energy Company | West Ranch "A" #351 | 6,973 | 23902698 |
| 653038 | Apr 11, 2008 | Apr 11, 2008 | Cibolo Energy Operating, Inc. | Lee Turner C #3 | 7,550 | 23932202 |
| 655678 | Apr 10, 2008 | Apr 10, 2008 | Hilcorp Energy Company | West Ranch 'A' #64 | 5,115 | 23902419 |
| 658117 | Apr 9, 2008 | Apr 9, 2008 | Sue-Ann Operating, L.C. | Silliman Gas Unit #5 | 6,292 | 23900823 |
| 653036 | Apr 4, 2008 | Apr 4, 2008 | Cibolo Energy Operating, Inc. | E.A. Turner D #2 | 5,767 | 23903078 |
| 657422 | Mar 26, 2008 | Mar 26, 2008 | Acock/Anaqua Operating Co., LP | Bennett #3 | 7,600 | 23933447 |
| 657066 | Mar 24, 2008 | Mar 24, 2008 | Cordele Development Corporation | Pressly, Edmonia #14 | 5,185 | 23933373 |
| 656510 | Mar 14, 2008 | Mar 14, 2008 | Hilcorp Energy Company | West Ranch Unit No. 1 #1 | 7,670 | 23932416 |
| 656254 | Mar 11, 2008 | Mar 11, 2008 | Ambassador Petroleum, Inc. | Hackbarth #2 | 6,037 | 23901749 |
| 648479 | Mar 11, 2008 | Mar 11, 2008 | Hilcorp Energy Company | West Ranch 'A' #481 | 6,203 | 23931240 |
| 656364 | Mar 10, 2008 | Mar 10, 2008 | Hollimon Oil Corporation | McElveen #1 | 10,500 | 23933446 |
| 655078 | Mar 4, 2008 | Mar 4, 2008 | Hilcorp Energy Company | West Ranch 'A' #378 | 6,303 | 23902725 |
| 655832 | Feb 28, 2008 | Feb 28, 2008 | Drillmar Operating Company | Carrin M. Patman B #1 | 9,000 | 23933445 |
| 655488 | Feb 25, 2008 | Feb 25, 2008 | Chesapeake Operating, Inc. | Kubecka #3 | 14,000 | 23933444 |
| 655208 | Feb 22, 2008 | Feb 22, 2008 | Zachry Exploration, Ltd. | Kaup Unit #1 | 7,100 | 23933443 |
| 653882 | Feb 2, 2008 | Feb 2, 2008 | Kaiser-Francis Oil Company | Appling-Stovall #1A | 8,540 | 23933199 |
| 653686 | Jan 31, 2008 | Jan 31, 2008 | Hilcorp Energy Company | West Ranch 'A' #478 | 6,203 | 23930828 |
| 653508 | Jan 29, 2008 | Jan 29, 2008 | Alta Mesa Services, LP | Rose-Drushel #1 | 12,200 | 23933442 |
| 653106 | Jan 23, 2008 | Jan 23, 2008 | Hilcorp Energy Company | Toney, M.H., Mrs. #65 | 7,578 | 23902875 |
| 652509 | Jan 14, 2008 | Jan 14, 2008 | Jamex, Inc. | Wearden #2 | 12,500 | 23933440 |
| 652419 | Jan 10, 2008 | Jan 10, 2008 | Alta Mesa Services, LP | I. T. Taylor, et. Al. #1 | 9,000 | 23933441 |
| 648470 | Jan 10, 2008 | Jan 10, 2008 | Premier Natural Resources, LLC | Fowler, W.B. #5 | 6,222 | 23932376 |
| 651981 | Jan 2, 2008 | Jan 2, 2008 | Ambassador Petroleum, Inc. | Schomburg-Navidad River Unit #1 | 7,600 | 23933439 |
| 651385 | Dec 19, 2007 | Dec 19, 2007 | Hilcorp Energy Company | West Ranch 'A' #161 | 5,764 | 23902516 |
| 648465 | Dec 19, 2007 | Dec 19, 2007 | Premier Natural Resources, LLC | Neibuhr, A. L. #7F | 6,350 | 23903518 |
| 648212 | Dec 19, 2007 | Dec 19, 2007 | Premier Natural Resources, LLC | Spacek, Frank #10 | 4,812 | 23931597 |
| 648201 | Dec 19, 2007 | Dec 19, 2007 | Premier Natural Resources, LLC | Spacek, Frank #9 | 6,404 | 23930410 |
| 648198 | Dec 19, 2007 | Dec 19, 2007 | Premier Natural Resources, LLC | Spacek, Frank #7 | 6,409 | 23930425 |
| 647654 | Dec 19, 2007 | Dec 19, 2007 | Premier Natural Resources, LLC | Cravens, E. T. #8 | 6,400 | 23932051 |
| 647654Amendment | Dec 19, 2007 | Dec 19, 2007 | Premier Natural Resources, LLC | Cravens, E. T. #8 | 6,400 | 23932051 |
| 646116 | Dec 19, 2007 | Dec 19, 2007 | Premier Natural Resources, LLC | Spacek, Frank #5 | 5,501 | 23900550 |
| 646104 | Dec 19, 2007 | Dec 19, 2007 | Premier Natural Resources, LLC | Neibuhr, A.L. #10 | 6,416 | 23932298 |
| 649705 | Dec 18, 2007 | Dec 18, 2007 | Ambassador Petroleum, Inc. | Graves #6 | 7,600 | 23933438 |
| 649323 | Dec 17, 2007 | Dec 17, 2007 | Hilcorp Energy Company | West Ranch 'A" #330 | 6,190 | 23902677 |
| 650421 | Dec 7, 2007 | Dec 7, 2007 | Hilcorp Energy Company | West Ranch 'A' #351 | 6,973 | 23902698 |
| 650160 | Nov 26, 2007 | Nov 26, 2007 | Ambassador Petroleum, Inc. | Navidad River Unit #2R | 7,000 | 23933437 |
| 646111 | Nov 20, 2007 | Nov 20, 2007 | Premier Natural Resources, LLC | Cravens, J. R. #3 | 5,552 | 23900585 |
| 649325 | Nov 15, 2007 | Nov 15, 2007 | Hilcorp Energy Company | West Ranch 'A" #379 | 6,302 | 23902726 |
| 649324 | Nov 15, 2007 | Nov 15, 2007 | Hilcorp Energy Company | West Ranch 'A" #372 | 6,314 | 23902719 |
| 649322 | Nov 15, 2007 | Nov 15, 2007 | Hilcorp Energy Company | West Ranch 'A" #314 | 6,475 | 23902662 |
| 649023 | Nov 12, 2007 | Nov 12, 2007 | Proton Operating Company, L.L.C. | L Ranch D #1 | 9,000 | 23933436 |
| 649023Amendment | Nov 12, 2007 | Nov 12, 2007 | Ginger Oil Company (A) | L Ranch D #1 A | 9,000 | 23933436 |
| 648749 | Nov 7, 2007 | Nov 7, 2007 | Zachry Exploration, Ltd. | McNeil #1 | 3,200 | 23933435 |
| 648697 | Nov 6, 2007 | Nov 6, 2007 | Samson Lone Star, LLC | Anders #2L | 8,855 | 23932672 |
| 648697Amendment | Nov 6, 2007 | Nov 6, 2007 | Samson Contour Energy E&P, LLC | Anders #2L | 8,855 | 23932672 |
| 648478 | Nov 5, 2007 | Nov 5, 2007 | Hilcorp Energy Company | West Ranch 'A' #26 | 6,346 | 23902381 |
| 646115 | Nov 1, 2007 | Nov 1, 2007 | Premier Natural Resources, LLC | Cravens, J. R. #5 | 6,400 | 23930528 |
| 648445 | Oct 31, 2007 | Oct 31, 2007 | Premier Natural Resources, LLC | Eversburg, C. R. #1 | 6,391 | 23900579 |
| 646635 | Oct 30, 2007 | Oct 30, 2007 | Cibolo Energy Operating, Inc. | Irma Schuech "B" #7 | 7,116 | 23932610 |
| 646633 | Oct 26, 2007 | Oct 26, 2007 | Cibolo Energy Operating, Inc. | Irma Schuech "B" #5 | 8,306 | 23932098 |
| 646632 | Oct 26, 2007 | Oct 26, 2007 | Cibolo Energy Operating, Inc. | Irma Schuech "B" #1 | 6,850 | 23931930 |
| 647642 | Oct 18, 2007 | Oct 18, 2007 | Premier Natural Resources, LLC | Mauritz, T. N. #5 | 4,871 | 23930126 |
| 647646 | Oct 17, 2007 | Oct 17, 2007 | Premier Natural Resources, LLC | Spacek, Frank #6 | 6,051 | 23900549 |
| 647628 | Oct 17, 2007 | Oct 17, 2007 | Premier Natural Resources, LLC | Fowler, W.B. #4 | 4,765 | 23900527 |
| 647625 | Oct 17, 2007 | Oct 17, 2007 | Premier Natural Resources, LLC | Weise, Della #3 | 4,768 | 23900545 |
| 647622 | Oct 17, 2007 | Oct 17, 2007 | Premier Natural Resources, LLC | Cravens, E. T. #1 | 6,250 | 23900587 |
| 645731 | Oct 15, 2007 | Oct 15, 2007 | Pegasus Operating, Inc. | Clements, George S #7 | 6,758 | 23930821 |
| 646611 | Oct 12, 2007 | Oct 12, 2007 | Caskids Operating Company | Patman, Carrin M #1 | 9,000 | 23933434 |
| 647153 | Oct 9, 2007 | Oct 9, 2007 | Zachry Exploration, Ltd. | Wittenburg Unit #1 | 5,200 | 23933433 |
| 646188 | Oct 4, 2007 | Oct 4, 2007 | Premier Natural Resources, LLC | Cravens, E. T. #5 | 4,761 | 23900591 |
| 646964 | Oct 3, 2007 | Oct 3, 2007 | Proton Operating Company, L.L.C. | L. Ranch A #2 | 7,500 | 23933431 |
| 646941 | Oct 3, 2007 | Oct 3, 2007 | Gemarmi Inc. | Formosa Plastics #1 | 8,500 | 23933432 |
| 646877 | Oct 3, 2007 | Oct 3, 2007 | Acock/Anaqua Operating Co., LP | Ohlendorf #1 | 7,600 | 23933430 |
| 646554 | Sep 27, 2007 | Sep 27, 2007 | Neumin Production Company | Matson #1 | 9,500 | 23933428 |
| 644992 | Sep 26, 2007 | Sep 26, 2007 | Ambassador Petroleum, Inc. | Stanford #1 | 7,000 | 23933429 |
| 644957 | Sep 21, 2007 | Sep 21, 2007 | Ambassador Petroleum, Inc. | Navidad River Unit #2 | 7,000 | 23933424 |
| 645818 | Sep 18, 2007 | Sep 18, 2007 | Zachry Exploration, Ltd. | Oliver #1 | 9,700 | 23933427 |
| 644331 | Sep 11, 2007 | Sep 11, 2007 | SE USA Operating, Inc. | McDowell "A" #1 | 6,731 | 23901649 |