| 714618 | Apr 28, 2011 | Apr 28, 2011 | Element Petroleum Operating, LLC | Zula 1 #1 | 11,000 | 22736653 |
| 714616 | Apr 28, 2011 | Apr 28, 2011 | Element Petroleum Operating, LLC | Dillard 6 #1 | 11,000 | 22736652 |
| 714410 | Apr 26, 2011 | Apr 26, 2011 | Apache Corporation | Reed 7 #2 | 10,000 | 22736650 |
| 714177 | Apr 22, 2011 | Apr 22, 2011 | Cobra Oil & Gas Corporation | Fisher 40 #1 | 11,000 | 22736648 |
| 714327 | Apr 21, 2011 | Apr 21, 2011 | Crownquest Operating, LLC | Cyallen 48 #1 | 11,900 | 22736651 |
| 714400 | Apr 20, 2011 | Apr 20, 2011 | Endeavor Energy Resources L.P. | Quinn '15' #1 | 10,780 | 22733433 |
| 714182 | Apr 20, 2011 | Apr 20, 2011 | Cobra Oil & Gas Corporation | Glass 47 #1 | 11,000 | 22736649 |
| 714294 | Apr 19, 2011 | Apr 19, 2011 | Apache Corporation | Musgrove 16 #1 | 10,000 | 22736645 |
| 714294Amendment | Apr 19, 2011 | Apr 19, 2011 | Apache Corporation | Musgrove 16 #1 | 10,000 | 22736645 |
| 714041 | Apr 19, 2011 | Apr 19, 2011 | Crownquest Operating, LLC | Knott Shaw #1 | 11,900 | 22736647 |
| 714038 | Apr 19, 2011 | Apr 19, 2011 | Crownquest Operating, LLC | Roosevelt Patsy 19 #1 | 11,900 | 22736646 |
| 714029 | Apr 19, 2011 | Apr 19, 2011 | Cobra Oil & Gas Corporation | Grantham 12 #1 | 12,000 | 22736429 |
| 714112 | Apr 15, 2011 | Apr 15, 2011 | Element Petroleum Operating, LLC | Ward 22 #2 | 11,000 | 22736644 |
| 713894 | Apr 14, 2011 | Apr 14, 2011 | Trilogy Operating, Inc. | Wright Estate #2 | 11,500 | 22710981 |
| 713478 | Apr 14, 2011 | Apr 14, 2011 | Partee Drilling Inc. | Rogers #3801 | 10,500 | 22736643 |
| 713478Amendment | Apr 14, 2011 | Apr 14, 2011 | Partee Drilling Inc. | Rogers #3801 | 10,500 | 22736643 |
| 713746 | Apr 12, 2011 | Apr 12, 2011 | Clear Water Inc. | Lloyd SWD #2 | 4,000 | 22735046 |
| 713740 | Apr 11, 2011 | Apr 11, 2011 | Meritage Energy Company, LLC | Weber #3532 | 10,200 | 22736642 |
| 713664 | Apr 11, 2011 | Apr 11, 2011 | Crownquest Operating, LLC | Cecil 6 #1 | 11,000 | 22736641 |
| 713424 | Apr 8, 2011 | Apr 8, 2011 | Midland Oil and Gas, Inc. | Guitar 22 #1 | 11,000 | 22736640 |
| 713424Amendment | Apr 8, 2011 | Apr 8, 2011 | Midland Oil and Gas, Inc. | Guitar 22 #1 | 11,000 | 22736640 |
| 713494 | Apr 7, 2011 | Apr 7, 2011 | Apache Corporation | Musgrove 9 #2 | 10,000 | 22736638 |
| 713494Amendment | Apr 7, 2011 | Apr 7, 2011 | Apache Corporation | Musgrove 9 #2 | 10,000 | 22736638 |
| 713429 | Apr 7, 2011 | Apr 7, 2011 | Midland Oil and Gas, Inc. | Guitar 19 #1 | 11,000 | 22736637 |
| 713429Amendment | Apr 7, 2011 | Apr 7, 2011 | Midland Oil and Gas, Inc. | Guitar 19 #1 | 11,000 | 22736637 |
| 713304 | Apr 7, 2011 | Apr 7, 2011 | Clear Water Inc. | Lonestar #1 | 11,000 | 22736639 |
| 713304Amendment | Apr 7, 2011 | Apr 7, 2011 | Breitburn Operating L.P. | Lonestar #1 | 11,000 | 22736639 |
| 712034 | Apr 7, 2011 | Apr 7, 2011 | Conocophillips Company | Knotts #4 | 12,600 | 22736623 |
| 712034Amendment | Apr 7, 2011 | Apr 7, 2011 | Conocophillips Company | Knotts -B- #1 | 12,600 | 22736623 |
| 712031 | Apr 7, 2011 | Apr 7, 2011 | Conocophillips Company | Knotts #3 | 12,600 | 22736622 |
| 712031Amendment | Apr 7, 2011 | Apr 7, 2011 | Conocophillips Company | Knotts 'C' #2 | 12,600 | 22736622 |
| 712011 | Apr 7, 2011 | Apr 7, 2011 | Conocophillips Company | Knotts #2 | 12,600 | 22736621 |
| 712011Amendment | Apr 7, 2011 | Apr 7, 2011 | Conocophillips Company | Knotts 'C' #1 | 12,600 | 22736621 |
| 712008 | Apr 7, 2011 | Apr 7, 2011 | Conocophillips Company | Knotts #1 | 12,600 | 22736620 |
| 712008Amendment | Apr 7, 2011 | Apr 7, 2011 | Conocophillips Company | Knotts -B- #2 | 12,600 | 22736620 |
| 713360 | Apr 6, 2011 | Apr 6, 2011 | Element Petroleum Operating, LLC | Newton 9 #2 | 11,000 | 22736636 |
| 713359 | Apr 5, 2011 | Apr 5, 2011 | Meritage Energy Company, LLC | H.E. Tubb #4221 | 10,600 | 22736635 |
| 713314 | Apr 5, 2011 | Apr 5, 2011 | Clear Water Inc. | Smith #1 | 11,000 | 22736632 |
| 713314Amendment | Apr 5, 2011 | Apr 5, 2011 | Big Star Oil & Gas, LLC | Smith #1 | 11,000 | 22736632 |
| 713312 | Apr 5, 2011 | Apr 5, 2011 | Clear Water Inc. | Sage #1 | 11,000 | 22736634 |
| 713306 | Apr 5, 2011 | Apr 5, 2011 | Clear Water Inc. | Cottonwood #1 | 11,000 | 22736631 |
| 713306Amendment | Apr 5, 2011 | Apr 5, 2011 | Big Star Oil & Gas, LLC | Cottonwood #1 | 11,000 | 22736631 |
| 713306Amendment | Apr 5, 2011 | Apr 5, 2011 | Big Star Oil & Gas, LLC | Cottonwood #1 | 11,000 | 22736631 |
| 713133 | Apr 1, 2011 | Apr 1, 2011 | Laredo Petroleum, Inc. | Tex 8 #3 | 11,000 | 22736629 |
| 713147 | Mar 31, 2011 | Mar 31, 2011 | Trilogy Operating, Inc. | Martin #1 | 11,500 | 22730180 |
| 712554 | Mar 31, 2011 | Mar 31, 2011 | Crownquest Operating, LLC | Clo 32 #1 | 11,900 | 22736627 |
| 712554Amendment | Mar 31, 2011 | Mar 31, 2011 | Crownquest Operating, LLC | Clo 32 #1 | 11,900 | 22736627 |
| 712961 | Mar 30, 2011 | Mar 30, 2011 | Pioneer Natural Res. USA, Inc. | Miller '1' #1 | 10,250 | 22736628 |
| 711563 | Mar 28, 2011 | Mar 28, 2011 | Cobra Oil & Gas Corporation | McNew 28A #2 | 10,513 | 22736229 |
| 711555 | Mar 25, 2011 | Mar 25, 2011 | Cobra Oil & Gas Corporation | Ware 30 #1 | 12,000 | 22736428 |
| 712098 | Mar 22, 2011 | Mar 22, 2011 | Crownquest Operating, LLC | Newton 5 #1 | 10,900 | 22736626 |
| 712230 | Mar 21, 2011 | Mar 21, 2011 | Linn Operating, Inc. | Coconut 10 #10 C | 11,000 | 22736625 |
| 712230Amendment | Mar 21, 2011 | Mar 21, 2011 | Linn Operating, Inc. | Coconut 10 #10 C | 11,000 | 22736625 |
| 710343 | Mar 21, 2011 | Mar 21, 2011 | Conocophillips Company | Chalk, G. O. -B- #21 | 4,600 | 22736246 |
| 712127 | Mar 18, 2011 | Mar 18, 2011 | Trilogy Operating, Inc. | W. Ranch #1 | 11,000 | 22736344 |
| 711574 | Mar 17, 2011 | Mar 17, 2011 | Cobra Oil & Gas Corporation | Johnson 2 #2 | 12,000 | 22736415 |
| 710377 | Mar 17, 2011 | Mar 17, 2011 | Conocophillips Company | Douthit-B 1 #20 | 4,600 | 22736247 |
| 711697 | Mar 16, 2011 | Mar 16, 2011 | Element Petroleum Operating, LLC | Guthrie 15 #1 | 11,000 | 22736624 |
| 710123 | Mar 16, 2011 | Mar 16, 2011 | Conocophillips Company | Roberts, Dora #69 | 3,400 | 22736594 |
| 711549 | Mar 15, 2011 | Mar 15, 2011 | Cobra Oil & Gas Corporation | McNew 28A #5 | 12,000 | 22736619 |
| 711548 | Mar 15, 2011 | Mar 15, 2011 | Cobra Oil & Gas Corporation | Roman 19 #1 | 12,000 | 22736618 |
| 711533 | Mar 15, 2011 | Mar 15, 2011 | Crownquest Operating, LLC | S. O. Williams 21 A #2 | 11,900 | 22736617 |
| 711576 | Mar 11, 2011 | Mar 11, 2011 | Cobra Oil & Gas Corporation | Gaskins 21 #1 | 12,000 | 22736401 |
| 711730 | Mar 10, 2011 | Mar 10, 2011 | Endeavor Energy Resources L.P. | Morris '33' #1 | 12,000 | 22736615 |
| 711412 | Mar 10, 2011 | Mar 10, 2011 | Element Petroleum Operating, LLC | Stasey 18 #1 | 11,000 | 22736616 |
| 710120 | Mar 10, 2011 | Mar 10, 2011 | Conocophillips Company | Roberts, Dora #66 | 3,400 | 22736596 |
| 710120Amendment | Mar 10, 2011 | Mar 10, 2011 | Conocophillips Company | Roberts, Dora #66 | 3,400 | 22736596 |
| 711223 | Mar 8, 2011 | Mar 8, 2011 | Cobra Oil & Gas Corporation | Nichols 17 #1 | 12,000 | 22736614 |
| 711117 | Mar 8, 2011 | Mar 8, 2011 | Crownquest Operating, LLC | O'Brian 5 #2 | 11,500 | 22736612 |
| 711397 | Mar 7, 2011 | Mar 7, 2011 | Manhattan Petroleum, Inc. | Angry Greek 21 #1 | 11,000 | 22736611 |
| 709575 | Mar 4, 2011 | Mar 4, 2011 | Conocophillips Company | Chalk, G. O. -D- #27 | 4,600 | 22736245 |
| 711016 | Mar 1, 2011 | Mar 1, 2011 | Partee Drilling Inc. | Walleye #1001 | 10,900 | 22736610 |
| 711016Amendment | Mar 1, 2011 | Mar 1, 2011 | Partee Drilling Inc. | Walleye #1001 | 10,900 | 22736610 |
| 710560 | Feb 24, 2011 | Feb 24, 2011 | Crownquest Operating, LLC | Beall 18 #2 | 11,000 | 22736609 |
| 709627 | Feb 24, 2011 | Feb 24, 2011 | Crownquest Operating, LLC | Free 32 #4 | 10,900 | 22736601 |
| 710673 | Feb 23, 2011 | Feb 23, 2011 | Trilogy Operating, Inc. | Wright #3 | 11,500 | 22730205 |
| 710313 | Feb 23, 2011 | Feb 23, 2011 | Element Petroleum Operating, LLC | Guitar 13 #2 | 11,000 | 22736608 |
| 710305 | Feb 23, 2011 | Feb 23, 2011 | Element Petroleum Operating, LLC | Talbot 5 #1 | 11,000 | 22736606 |
| 710291 | Feb 23, 2011 | Feb 23, 2011 | Element Petroleum Operating, LLC | Yarbar 16 #2 | 11,000 | 22736607 |
| 710288 | Feb 23, 2011 | Feb 23, 2011 | Element Petroleum Operating, LLC | Duncan 9 #2 | 11,000 | 22736605 |
| 710589 | Feb 22, 2011 | Feb 22, 2011 | Lackey, William H. Oil and Gas | Powell A #2 | 8,300 | 22736603 |
| 710588 | Feb 22, 2011 | Feb 22, 2011 | Lackey, William H. Oil and Gas | Powell A #1 | 8,300 | 22736602 |
| 710571 | Feb 22, 2011 | Feb 22, 2011 | Endeavor Energy Resources L.P. | Shaw '11' #1 | 12,000 | 22736604 |
| 710286 | Feb 17, 2011 | Feb 17, 2011 | Element Petroleum Operating, LLC | McCrary 19 #2 | 11,000 | 22736599 |
| 710261 | Feb 17, 2011 | Feb 17, 2011 | Meritage Energy Company, LLC | McKenzie #3914 | 10,600 | 22736598 |
| 708601 | Feb 17, 2011 | Feb 17, 2011 | Element Petroleum Operating, LLC | Guitar 10 #1 | 11,000 | 22736600 |
| 708791 | Feb 16, 2011 | Feb 16, 2011 | Element Petroleum Operating, LLC | Ward 17 A #1 | 11,000 | 22736587 |
| 710122 | Feb 14, 2011 | Feb 14, 2011 | Conocophillips Company | Roberts, Dora #68 | 3,400 | 22736593 |
| 710121 | Feb 14, 2011 | Feb 14, 2011 | Conocophillips Company | Roberts, Dora #67 | 3,400 | 22736597 |
| 710121Amendment | Feb 14, 2011 | Feb 14, 2011 | Conocophillips Company | Roberts, Dora #67 | 3,400 | 22736597 |
| 710119 | Feb 14, 2011 | Feb 14, 2011 | Conocophillips Company | Roberts, Dora #64 | 3,400 | 22736595 |
| 710013 | Feb 11, 2011 | Feb 11, 2011 | Endeavor Energy Resources L.P. | Buchanan '8' #1 | 12,000 | 22734024 |
| 709689 | Feb 11, 2011 | Feb 11, 2011 | Crownquest Operating, LLC | Talbot CQ #5 | 10,900 | 22736592 |
| 709661 | Feb 10, 2011 | Feb 10, 2011 | Crownquest Operating, LLC | Free 32 #5 | 10,900 | 22736591 |
| 709661Amendment | Feb 10, 2011 | Feb 10, 2011 | Crownquest Operating, LLC | Free 32 #5 | 11,600 | 22736591 |
| 709553 | Feb 3, 2011 | Feb 3, 2011 | Endeavor Energy Resources L.P. | Guitar '7A' #2 | 12,000 | 22736590 |
| 709123 | Feb 3, 2011 | Feb 3, 2011 | Crownquest Operating, LLC | Airlines 8 #1 | 10,900 | 22736589 |
| 708068 | Feb 3, 2011 | Feb 3, 2011 | Crownquest Operating, LLC | Lindsay B #93 | 10,900 | 22736570 |
| 708068Amendment | Feb 3, 2011 | Feb 3, 2011 | Breitburn Operating L.P. | Lindsay B #93 | 10,900 | 22736570 |
| 708923 | Feb 2, 2011 | Feb 2, 2011 | Cobra Oil & Gas Corporation | Grantham 13 #1 | 12,000 | 22736588 |