| 661115 | May 21, 2008 | May 21, 2008 | Samson Lone Star, LLC | University 7-20 #300340505 | 14,000 |
| 661113 | May 21, 2008 | May 21, 2008 | Samson Lone Star, LLC | University 7-20 #200340508 | 14,000 |
| 661112 | May 21, 2008 | May 21, 2008 | Samson Lone Star, LLC | University 6-48 #200340503 | 14,000 |
| 657571 | May 21, 2008 | May 21, 2008 | Chevron U. S. A. Inc. | Mabee Unit #600HH00336608 | 5,500 |
| 658324 | May 20, 2008 | May 20, 2008 | XTO Energy Inc. | Texas N #100305620 | 10,727 |
| 660715 | May 15, 2008 | May 15, 2008 | Henry Petroleum LP | Mabee RANCH14 #90200340501 | 11,200 |
| 660455 | May 12, 2008 | May 12, 2008 | Henry Petroleum LP | BOHANNON24 #400340500 | 10,900 |
| 660455Amendment | May 12, 2008 | May 12, 2008 | Henry Resources LLC | BOHANNON24 #400340500 | 10,900 |
| 659269 | May 9, 2008 | May 9, 2008 | OK Arena Operating Company | Olsen et Al #800340498 | 4,900 |
| 657950 | May 9, 2008 | May 9, 2008 | Range Production Company | Thornberry 18 #200338064 | 4,700 |
| 656634 | May 9, 2008 | May 9, 2008 | Forest Oil Corporation | Phillips University T #500339015 | 7,600 |
| 660294 | May 7, 2008 | May 7, 2008 | Cimarex Energy Co. of Colorado | State of Texas 'AV' #100307237 | 12,560 |
| 660294Amendment | May 7, 2008 | May 7, 2008 | Cimarex Energy Co. of Colorado | State of Texas 'AV' #100307237 | 12,560 |
| 659004 | May 7, 2008 | May 7, 2008 | Pacesetter Energy, Inc. | Nichols Sisterload #1200340496 | 6,000 |
| 659002 | May 7, 2008 | May 7, 2008 | Pacesetter Energy, Inc. | University 14 #500340494 | 6,000 |
| 660084 | May 2, 2008 | May 2, 2008 | Williams, Clayton Energy, Inc. | Andrews University "20" #100340497 | 10,750 |
| 660084Amendment | May 2, 2008 | May 2, 2008 | Williams, Clayton Energy, Inc. | Andrews University "20" #100340497 | 11,504 |
| 659261 | May 2, 2008 | May 2, 2008 | OK Arena Operating Company | Lyda Miles #400340477 | 4,900 |
| 659265 | May 1, 2008 | May 1, 2008 | OK Arena Operating Company | Bush, W. H. B #1200340479 | 4,900 |
| 659806 | Apr 30, 2008 | Apr 30, 2008 | Range Production Company | Thornberry 23 #100305056 | 4,593 |
| 659775 | Apr 29, 2008 | Apr 29, 2008 | Chesapeake Operating, Inc. | University 6-33 #100340492 | 12,000 |
| 659771 | Apr 29, 2008 | Apr 29, 2008 | Chesapeake Operating, Inc. | University 6-46 #200340493 | 12,000 |
| 659003 | Apr 29, 2008 | Apr 29, 2008 | Pacesetter Energy, Inc. | University 26 #500340495 | 6,000 |
| 659598 | Apr 26, 2008 | Apr 26, 2008 | Range Production Company | Lockhart & Brown B 17 #100306507 | 4,624 |
| 659551 | Apr 26, 2008 | Apr 26, 2008 | Pacesetter Energy, Inc. | University '14' #400340490 | 6,000 |
| 659327 | Apr 25, 2008 | Apr 25, 2008 | OK Arena Operating Company | Lockhart & Brown & Olsen #300340488 | 4,900 |
| 659326 | Apr 25, 2008 | Apr 25, 2008 | OK Arena Operating Company | Olsen Gap #300340487 | 4,900 |
| 659324 | Apr 25, 2008 | Apr 25, 2008 | OK Arena Operating Company | Thornberry H #300340486 | 4,900 |
| 659322 | Apr 25, 2008 | Apr 25, 2008 | OK Arena Operating Company | Thornberry G #300340485 | 4,900 |
| 659321 | Apr 25, 2008 | Apr 25, 2008 | OK Arena Operating Company | Thornberry M A Est. B #400340484 | 4,900 |
| 659300 | Apr 25, 2008 | Apr 25, 2008 | COG Operating LLC | M. R. Lowe 15 #400340482 | 7,500 |
| 659283 | Apr 25, 2008 | Apr 25, 2008 | EXL Petroleum, LP | Universitypamela #100333310 | 12,000 |
| 659283Amendment | Apr 25, 2008 | Apr 25, 2008 | EXL Petroleum, LP | Universitypamela #100333310 | 12,000 |
| 658511 | Apr 25, 2008 | Apr 25, 2008 | Citation Oil & Gas Corp. | King, E F #8R00340489 | 6,100 |
| 659266 | Apr 24, 2008 | Apr 24, 2008 | OK Arena Operating Company | Olsen et Al #700340480 | 4,900 |
| 659263 | Apr 24, 2008 | Apr 24, 2008 | OK Arena Operating Company | MA Thornberry Bustamonte #800340483 | 4,900 |
| 659262 | Apr 24, 2008 | Apr 24, 2008 | OK Arena Operating Company | Thornberry J #400340478 | 4,900 |
| 659258 | Apr 24, 2008 | Apr 24, 2008 | OK Arena Operating Company | University 21B #100340481 | 4,900 |
| 659257 | Apr 24, 2008 | Apr 24, 2008 | OK Arena Operating Company | Cities #400340476 | 4,900 |
| 658302 | Apr 24, 2008 | Apr 24, 2008 | XTO Energy Inc. | University 9 Cec #7HH00338501 | 10,600 |
| 655788 | Apr 23, 2008 | Apr 23, 2008 | Forest Oil Corporation | Phillips University P #600339357 | 7,600 |
| 658256 | Apr 22, 2008 | Apr 22, 2008 | OK Arena Operating Company | Thornberry, M. A. Cons. II #1700340463 | 4,900 |
| 658248 | Apr 22, 2008 | Apr 22, 2008 | OK Arena Operating Company | Thornberry, M. A. Cons. II #1900340464 | 4,900 |
| 658231 | Apr 22, 2008 | Apr 22, 2008 | OK Arena Operating Company | Thornberry, M. A. Cons. II #1800340465 | 4,900 |
| 655607 | Apr 22, 2008 | Apr 22, 2008 | Forest Oil Corporation | Phillips University 11-A #700339028 | 7,632 |
| 648713 | Apr 17, 2008 | Apr 17, 2008 | OK Arena Operating Company | Lockhart&brown #100332135 | 3,200 |
| 648713Amendment | Apr 17, 2008 | Apr 17, 2008 | OK Arena Operating Company | Lockhart&brown #100332135 | 3,200 |
| 656324 | Apr 16, 2008 | Apr 16, 2008 | Range Production Company | West Fuhrman-Mascho Unit #56400340475 | 4,900 |
| 656323 | Apr 16, 2008 | Apr 16, 2008 | Range Production Company | West Fuhrman-Mascho Unit #56500340474 | 4,900 |
| 656322 | Apr 16, 2008 | Apr 16, 2008 | Range Production Company | West Fuhrman-Mascho Unit #59300340473 | 4,900 |
| 656321 | Apr 16, 2008 | Apr 16, 2008 | Range Production Company | West Fuhrman-Masch Unit #58400340472 | 4,900 |
| 656320 | Apr 16, 2008 | Apr 16, 2008 | Range Production Company | West Fuhrman-Mascho Unit #105R00340471 | 4,900 |
| 656317 | Apr 16, 2008 | Apr 16, 2008 | Range Production Company | West Fuhrman-Mascho Unit #39000340470 | 4,900 |
| 656316 | Apr 16, 2008 | Apr 16, 2008 | Range Production Company | West Fuhrman-Mascho Unit #38900340469 | 4,900 |
| 656315 | Apr 16, 2008 | Apr 16, 2008 | Range Production Company | West Fuhrman-Mascho Unit #54100340468 | 4,900 |
| 656314 | Apr 16, 2008 | Apr 16, 2008 | Range Production Company | West Fuhrman-Mascho Unit #55900340467 | 4,900 |
| 656313 | Apr 16, 2008 | Apr 16, 2008 | Range Production Company | West Fuhrman-Mascho Unit #55000340466 | 4,900 |
| 657831 | Apr 15, 2008 | Apr 15, 2008 | Texland Petroleum, L.P. | Logsdon "D" #3500340453 | 4,800 |
| 658965 | Apr 14, 2008 | Apr 14, 2008 | M & M Production Ltd. | University BL #300332103 | 9,400 |
| 658965Amendment | Apr 14, 2008 | Apr 14, 2008 | M & M Production Ltd. | University BL #300332103 | 5,200 |
| 658233 | Apr 14, 2008 | Apr 14, 2008 | OK Arena Operating Company | McElreath #800340457 | 4,900 |
| 657778 | Apr 14, 2008 | Apr 14, 2008 | Texland Petroleum, L.P. | Logsdon "D" #3400340452 | 4,800 |
| 657768 | Apr 14, 2008 | Apr 14, 2008 | Texland Petroleum, L.P. | Logsdon "D" #3300340450 | 4,800 |
| 657768Amendment | Apr 14, 2008 | Apr 14, 2008 | Texland Petroleum, L.P. | Logsdon "D" #3300340450 | 4,800 |
| 655648 | Apr 12, 2008 | Apr 12, 2008 | Thompson, J. Cleo | State University Hutex Cons. #500302524 | 11,200 |
| 657856 | Apr 11, 2008 | Apr 11, 2008 | Texland Petroleum, L.P. | Scarborough Unit #203000340454 | 4,800 |
| 648741Amendment | Apr 11, 2008 | Apr 11, 2008 | OK Arena Operating Company | Parker, et Al #400332147 | 4,900 |
| 658259 | Apr 10, 2008 | Apr 10, 2008 | OK Arena Operating Company | Furhman B #800340462 | 4,900 |
| 658254 | Apr 10, 2008 | Apr 10, 2008 | OK Arena Operating Company | McElreath #600340461 | 4,900 |
| 658250 | Apr 10, 2008 | Apr 10, 2008 | OK Arena Operating Company | McElreath #700340459 | 4,900 |
| 658249 | Apr 10, 2008 | Apr 10, 2008 | OK Arena Operating Company | Thornberry F #1100340460 | 4,900 |
| 658232 | Apr 10, 2008 | Apr 10, 2008 | OK Arena Operating Company | Thornberry F #1000340458 | 4,900 |
| 658122 | Apr 9, 2008 | Apr 9, 2008 | OK Arena Operating Company | Thornberry 5E #300340456 | 4,900 |
| 658096 | Apr 9, 2008 | Apr 9, 2008 | XTO Energy Inc. | University 9 Cec #11HH00338963 | 10,600 |
| 658028 | Apr 8, 2008 | Apr 8, 2008 | Forest Oil Corporation | University Consolidated VI #5W00335874 | 7,136 |
| 654498 | Apr 8, 2008 | Apr 8, 2008 | Nadel and Gussman Permian,l.l.c. | University "F" #5H00339274 | 10,765 |
| 654498Amendment | Apr 8, 2008 | Apr 8, 2008 | Nadel and Gussman Permian,l.l.c. | University "F" #5H00339274 | 10,765 |
| 647553 | Apr 8, 2008 | Apr 8, 2008 | OK Arena Operating Company | Munger Nix A #2700301527 | 3,200 |
| 658065 | Apr 7, 2008 | Apr 7, 2008 | Hannathon Petroleum, LLC | University "B" #162200340455 | 5,000 |
| 657645 | Apr 3, 2008 | Apr 3, 2008 | OK Arena Operating Company | M A Thornberry A #700340446 | 4,900 |
| 657781 | Apr 2, 2008 | Apr 2, 2008 | OK Arena Operating Company | M A Thornberry A #400340451 | 4,900 |
| 655835 | Apr 2, 2008 | Apr 2, 2008 | Apache Corporation | University BQ #1100340426 | 6,000 |
| 657723 | Apr 1, 2008 | Apr 1, 2008 | OK Arena Operating Company | University 12 #100340449 | 4,900 |
| 657722 | Apr 1, 2008 | Apr 1, 2008 | OK Arena Operating Company | M A Thornberry A #900340448 | 4,900 |
| 657715 | Apr 1, 2008 | Apr 1, 2008 | OK Arena Operating Company | M A Thornberry A #800340447 | 4,900 |
| 657655 | Mar 31, 2008 | Mar 31, 2008 | Kenworthy Oil Company | University Penn #100304708 | 9,330 |
| 657644 | Mar 28, 2008 | Mar 28, 2008 | OK Arena Operating Company | M A Thornberry A #600340445 | 4,900 |
| 657639 | Mar 28, 2008 | Mar 28, 2008 | OK Arena Operating Company | M. A. Thornberry A #500340444 | 4,900 |
| 657462 | Mar 28, 2008 | Mar 28, 2008 | Samson Lone Star, LLC | University 5-36 #1R00336812 | 11,000 |
| 657219 | Mar 27, 2008 | Mar 27, 2008 | Americo Energy Resources, LLC | FK #300301687 | 12,457 |
| 657219Amendment | Mar 27, 2008 | Mar 27, 2008 | Americo Energy Resources, LLC | State FK #300301687 | 12,457 |
| 657337 | Mar 25, 2008 | Mar 25, 2008 | COG Operating LLC | Southland Royalty D #400339716 | 8,330 |
| 655841 | Mar 25, 2008 | Mar 25, 2008 | OK Arena Operating Company | Sfmu #59900340427 | 4,900 |
| 654983 | Mar 25, 2008 | Mar 25, 2008 | OK Arena Operating Company | Sfmu #165600340413 | 4,900 |
| 648800 | Mar 24, 2008 | Mar 24, 2008 | OK Arena Operating Company | Ehrig, et Al #200332171 | 4,900 |
| 647555 | Mar 24, 2008 | Mar 24, 2008 | OK Arena Operating Company | Leona A #100332418 | 3,080 |
| 657041 | Mar 21, 2008 | Mar 21, 2008 | Reliance Energy, Inc. | Mabee 240 #1SW00333438 | 13,655 |
| 656966 | Mar 20, 2008 | Mar 20, 2008 | Legacy Reserves Operating LP | Fuhrman et Al #100331788 | 7,465 |
| 655649 | Mar 19, 2008 | Mar 19, 2008 | Thompson, J. Cleo | State University Hutex Cons. #400302942 | 11,200 |
| 656684 | Mar 13, 2008 | Mar 13, 2008 | XTO Energy Inc. | University 9 A #700340443 | 10,900 |