| 548075 | Jul 12, 2004 | Jul 12, 2004 | Proton Energy, L.L.C. | Heard, Claude E. "B" #7 | 3,100 | 02501523 |
| 548075Amendment | Jul 12, 2004 | Jul 12, 2004 | Proton Energy, L.L.C. | Heard, Claude E. "B" #7 | 3,100 | 02501523 |
| 547741 | Jul 6, 2004 | Jul 6, 2004 | Drill-Co., Inc. | Knight, M. #1 | 2,650 | 02533278 |
| 547759 | Jul 2, 2004 | Jul 2, 2004 | Aurora Resources Corporation | Brinkoeter, H. C. #1 | 7,476 | 02530342 |
| 547396 | Jun 28, 2004 | Jun 28, 2004 | Riddle Engineering Corp. | Thomson - Barrow #A 3D | 3,285 | 02531755 |
| 546566 | Jun 15, 2004 | Jun 15, 2004 | Cummins & Walker Oil Co., Inc. | Holzmark #7 | 4,400 | 02533277 |
| 546442 | Jun 3, 2004 | Jun 3, 2004 | Devon Energy Production Co, L.P. | Ray, George A #103 | 8,506 | 02533115 |
| 546360 | Jun 3, 2004 | Jun 3, 2004 | Tepee Petroleum Co., Inc. | Borroum #2 | 11,000 | 02533276 |
| 545838 | May 18, 2004 | May 18, 2004 | Burk Royalty Co., Ltd. | Jaure #1 | 4,000 | 02533275 |
| 545838Amendment | May 18, 2004 | May 18, 2004 | Burk Royalty Co., Ltd. | Jaure #1 | 4,200 | 02533275 |
| 545576 | May 17, 2004 | May 17, 2004 | Devon Energy Production Co, L.P. | Ray #108 | 9,900 | 02533222 |
| 545551 | May 11, 2004 | May 11, 2004 | Wofford, C. J. | Sparkman Unit #2 | 4,100 | 02533274 |
| 545036 | Apr 30, 2004 | Apr 30, 2004 | Pioneer Natural Res. USA, Inc. | Henry Bues Gas Unit #11H | 16,600 | 02533272 |
| 545033 | Apr 30, 2004 | Apr 30, 2004 | Pioneer Natural Res. USA, Inc. | O'Neal Gas Unit #9H | 16,750 | 02533273 |
| 544853 | Apr 23, 2004 | Apr 23, 2004 | Hughes, Dan A. Company | Sugarberry-Chandler Unit #1 | 11,500 | 02533271 |
| 544700 | Apr 21, 2004 | Apr 21, 2004 | Welder Exploration & Prod., Inc. | Cisco #3 | 2,000 | 02533231 |
| 544700Amendment | Apr 21, 2004 | Apr 21, 2004 | Welder Exploration & Prod., Inc. | Cisco #3 | 2,250 | 02533231 |
| 542956 | Mar 26, 2004 | Mar 26, 2004 | Drill-Co., Inc. | Smith #07 | 4,000 | 02533267 |
| 543401 | Mar 22, 2004 | Mar 22, 2004 | Pioneer Natural Res. USA, Inc. | Turner Gas Unit #8H | 16,000 | 02533270 |
| 543429 | Mar 18, 2004 | Mar 18, 2004 | Southern Resource Company | Springer #1 | 4,300 | 02533269 |
| 543429Amendment | Mar 18, 2004 | Mar 18, 2004 | Southern Resource Company | Springer #1 | 4,900 | 02533269 |
| 543429Amendment | Mar 18, 2004 | Mar 18, 2004 | Southern Resource Company | Springer #1 | 4,900 | 02533269 |
| 543282 | Mar 16, 2004 | Mar 16, 2004 | Hughes, Dan A. Company | Clay, Nona #1 | 10,800 | 02533225 |
| 543201 | Mar 15, 2004 | Mar 15, 2004 | Anderson Oil Ltd | Eberstadt #3 | 2,000 | 02533268 |
| 542879 | Mar 5, 2004 | Mar 5, 2004 | Vega Exploration, Inc. | Heyser Est. #1 | 2,250 | 02533266 |
| 542879Amendment | Mar 5, 2004 | Mar 5, 2004 | Vega Exploration, Inc. | Heyser Est. #1 | 2,250 | 02533266 |
| 542658 | Mar 4, 2004 | Mar 4, 2004 | Enco Exploration Company | Long #10 | 5,000 | 02533265 |
| 541898 | Feb 10, 2004 | Feb 10, 2004 | Ruwco Oil and Gas Corp. | Murphy, John #1 | 6,000 | 02533264 |
| 541697 | Feb 5, 2004 | Feb 5, 2004 | Pioneer Natural Res. USA, Inc. | Mansker Ranch Ltd. #1H | 17,000 | 02533263 |
| 541697Amendment | Feb 5, 2004 | Feb 5, 2004 | Pioneer Natural Res. USA, Inc. | Mansker Ranch Ltd. #1H | 17,000 | 02533263 |
| 541697Amendment | Feb 5, 2004 | Feb 5, 2004 | Pioneer Natural Res. USA, Inc. | Mansker Ranch G. U. #1H | 17,000 | 02533263 |
| 541163 | Jan 23, 2004 | Jan 23, 2004 | Hughes, Dan A. Company | Brown, Ed #1 | 14,000 | 02533262 |
| 541163Amendment | Jan 23, 2004 | Jan 23, 2004 | Hughes, Dan A. Company | Brown, Ed #1 | 13,000 | 02533262 |
| 540116 | Dec 23, 2003 | Dec 23, 2003 | Hughes, Dan A. Company | Eberstadt #2 | 12,000 | 02533261 |
| 539988 | Dec 19, 2003 | Dec 19, 2003 | Proton Energy, L.L.C. | Heard, C. E. "B" #18 | 3,100 | 02532644 |
| 539339 | Dec 5, 2003 | Dec 5, 2003 | Charro Operating, L.L.C. | Lazy F #4 | 5,800 | 02533141 |
| 539197 | Dec 3, 2003 | Dec 3, 2003 | Hughes, Dan A. Company | Hall #1 | 13,000 | 02533259 |
| 539197Amendment | Dec 3, 2003 | Dec 3, 2003 | Hughes, Dan A. Company | Hall, Dah #1 #1 | 13,000 | 02533259 |
| 538777 | Nov 20, 2003 | Nov 20, 2003 | West Tuleta Operating Corp. | Wtu-Gill #1 | 8,580 | 02532566 |
| 538687 | Nov 20, 2003 | Nov 20, 2003 | Revelle Resources Inc. | Linney #1 | 4,600 | 02533257 |
| 538803 | Nov 19, 2003 | Nov 19, 2003 | Ffa Petroleum Services, Inc. | A. S. Reed G. U. #02 | 3,800 | 02533258 |
| 538456 | Nov 17, 2003 | Nov 17, 2003 | Pioneer Natural Res. USA, Inc. | Henry Bues Gas Unit #10H | 16,300 | 02533256 |
| 538347 | Nov 6, 2003 | Nov 6, 2003 | Odegard Energy, Inc. | McFall-Kerbey #6 | 8,200 | 02533255 |
| 537804 | Oct 22, 2003 | Oct 22, 2003 | Pioneer Natural Res. USA, Inc. | Going, Madge #1H | 16,500 | 02533254 |
| 537645 | Oct 17, 2003 | Oct 17, 2003 | Wofford, C. J. | Brashear #2 | 4,100 | 02533253 |
| 537469 | Oct 17, 2003 | Oct 17, 2003 | Caskids Operating Company | Blackburn #3 | 2,700 | 02533250 |
| 537468 | Oct 17, 2003 | Oct 17, 2003 | Caskids Operating Company | Blackburn #4 | 2,700 | 02533251 |
| 537468Amendment | Oct 17, 2003 | Oct 17, 2003 | Caskids Operating Company | Blackburn #4 | 2,700 | 02533251 |
| 537454 | Oct 17, 2003 | Oct 17, 2003 | Drill-Co., Inc. | Winsauer #1 | 3,300 | 02533252 |
| 537309 | Oct 10, 2003 | Oct 10, 2003 | Great Texas Crude Inc. | Stautzenberger #1 | 5,000 | 02533249 |
| 537341 | Oct 9, 2003 | Oct 9, 2003 | Hughes, Dan A. Company | Watkins, Larry #1 | 14,000 | 02533248 |
| 536929 | Oct 7, 2003 | Oct 7, 2003 | Huntington Energy, L.L.C. | Humberson, Budgie #1 | 4,200 | 02530238 |
| 536850 | Oct 1, 2003 | Oct 1, 2003 | Gasper Rice Resources, Ltd. | Steinmeyer, E. #1 | 3,203 | 02501941 |
| 536704 | Sep 29, 2003 | Sep 29, 2003 | Winn Exploration Co., Inc. | Dugat #2 | 4,000 | 02533247 |
| 536689 | Sep 22, 2003 | Sep 22, 2003 | Pioneer Natural Res. USA, Inc. | Turner GU #7H | 16,600 | 02533246 |
| 534669 | Sep 16, 2003 | Sep 16, 2003 | Inland Ocean, Inc. | Dirks - Mayfield #1 | 3,600 | 02533244 |
| 534669Amendment | Sep 16, 2003 | Sep 16, 2003 | Inland Ocean, Inc. | Dirks - Mayfield #1 | 3,608 | 02533244 |
| 536469 | Sep 15, 2003 | Sep 15, 2003 | San Isidro Development Co, L. C. | Barbara Lawson Estate #1 | 3,600 | 02533245 |
| 536411 | Sep 15, 2003 | Sep 15, 2003 | Etoco Incorporated | Byles-Shinn #1 | 12,000 | 02533243 |
| 536380 | Sep 12, 2003 | Sep 12, 2003 | Anderson Oil Ltd | Eberstadt #2 | 7,000 | 02533242 |
| 536057 | Sep 8, 2003 | Sep 8, 2003 | Enco Exploration Company | Long #6 | 4,700 | 02533240 |
| 536031 | Sep 4, 2003 | Sep 4, 2003 | Devon Energy Production Co, L.P. | Npu #41 - Ray #106 | 12,000 | 02533239 |
| 536031Amendment | Sep 4, 2003 | Sep 4, 2003 | Devon Energy Production Co, L.P. | Npu (Ray 106) #41 | 12,000 | 02533239 |
| 535086 | Aug 12, 2003 | Aug 12, 2003 | Endeavor Natural Gas, LLC | Shieves, Alba #1 | 9,450 | 02501107 |
| 535120 | Aug 8, 2003 | Aug 8, 2003 | Proton Energy, L.L.C. | C. E. Heard "B" #4 | 3,650 | 02501528 |
| 535083 | Aug 7, 2003 | Aug 7, 2003 | Odegard Energy, Inc. | McFall-Kerbey #5 | 8,200 | 02533199 |
| 535083Amendment | Aug 7, 2003 | Aug 7, 2003 | Odegard Energy, Inc. | McFall-Kerbey #5 | 8,200 | 02533199 |
| 534903 | Aug 7, 2003 | Aug 7, 2003 | Cummins & Walker Oil Co., Inc. | Holzmark #4 | 4,400 | 02533205 |
| 534968 | Aug 5, 2003 | Aug 5, 2003 | Devon Energy Production Co, L.P. | Dawn, Ray #1 | 16,000 | 02533238 |
| 534968Amendment | Aug 5, 2003 | Aug 5, 2003 | Devon Energy Production Co, L.P. | Dawn, Ray #1 | 16,000 | 02533238 |
| 534821 | Jul 31, 2003 | Jul 31, 2003 | Hughes, Dan A. Company | Oehlke Unit #1 | 16,000 | 02533237 |
| 534821Amendment | Jul 31, 2003 | Jul 31, 2003 | Hughes, Dan A. Company | Oehlke #1 | 4,000 | 02533237 |
| 534470 | Jul 29, 2003 | Jul 29, 2003 | Magnum Engineering Company | Nelson, Carl #1 | 4,500 | 02533236 |
| 534176 | Jul 16, 2003 | Jul 16, 2003 | Welder Exploration & Prod., Inc. | Spielhagen #14 A | 1,000 | 02500089 |
| 534159 | Jul 15, 2003 | Jul 15, 2003 | Aurora Resources Corporation | Pogue #2D | 2,000 | 02533235 |
| 534147 | Jul 14, 2003 | Jul 14, 2003 | Pioneer Natural Res. USA, Inc. | Turner Gas Unit #6H | 16,600 | 02533234 |
| 533978 | Jul 9, 2003 | Jul 9, 2003 | Jjrs Investments Inc. | Eberstadt #3 | 1,900 | 02533233 |
| 532730 | Jul 7, 2003 | Jul 7, 2003 | Hughes, Dan A. Company | McKinney, J. E. "B" #1 | 2,000 | 02533229 |
| 533204 | Jun 20, 2003 | Jun 20, 2003 | Express Oil Co. | Coffin Farms #1 | 4,300 | 02533232 |
| 532991 | Jun 16, 2003 | Jun 16, 2003 | Welder Exploration & Prod., Inc. | Cisco #3 | 4,000 | 02533231 |
| 532822 | Jun 11, 2003 | Jun 11, 2003 | Enco Exploration Company | Long #8 | 4,100 | 02533230 |
| 532729 | Jun 4, 2003 | Jun 4, 2003 | Prime Operating Company | Chandler Gas Unit #1 | 9,100 | 02532922 |
| 531956 | May 28, 2003 | May 28, 2003 | Great Texas Crude Inc. | Beasley A #1 | 5,000 | 02533228 |
| 531956Amendment | May 28, 2003 | May 28, 2003 | Great Texas Crude Inc. | Beasley A #1 | 5,000 | 02533228 |
| 532106 | May 23, 2003 | May 23, 2003 | Wagner Oil Company | Ray-Wilcox Unit Campbell #2 | 8,216 | 02532660 |
| 531995 | May 16, 2003 | May 16, 2003 | Gasper Rice Resources, Ltd. | Polasek #2 | 2,300 | 02533227 |
| 531995Amendment | May 16, 2003 | May 16, 2003 | Gasper Rice Resources, Ltd. | Polasek #2 | 2,300 | 02533227 |
| 531988 | May 16, 2003 | May 16, 2003 | Hughes, Dan A. Company | Hill, Robert #1 | 12,000 | 02533226 |
| 531987 | May 16, 2003 | May 16, 2003 | Hughes, Dan A. Company | Clay, Nona #1 | 12,000 | 02533225 |
| 531919 | May 14, 2003 | May 14, 2003 | Hughes, Dan A. Company | Grissom #2 | 5,000 | 02533224 |
| 531918 | May 14, 2003 | May 14, 2003 | Hughes, Dan A. Company | York #1 | 5,500 | 02533223 |
| 531844 | May 12, 2003 | May 12, 2003 | Devon Energy Production Co, L.P. | Ray, George A. #108 | 10,200 | 02533222 |
| 531844Amendment | May 12, 2003 | May 12, 2003 | Devon Energy Production Co, L.P. | Ray, George A. #108 | 10,200 | 02533222 |
| 531732 | May 8, 2003 | May 8, 2003 | Caskids Operating Company | Blackburn Unit #1 | 2,700 | 02533221 |
| 531455 | May 7, 2003 | May 7, 2003 | KCS Resources, Inc. | Johnston #1 | 13,900 | 02533220 |
| 531303 | May 6, 2003 | May 6, 2003 | Inland Ocean, Inc. | Withers #1 | 3,600 | 02533219 |
| 531303Amendment | May 6, 2003 | May 6, 2003 | Inland Ocean, Inc. | Withers #1 | 3,610 | 02533219 |
| 531203 | May 5, 2003 | May 5, 2003 | Inland Ocean, Inc. | Dirks #1 | 1,250 | 02533218 |
| 531142 | Apr 30, 2003 | Apr 30, 2003 | Gasper Rice Resources, Ltd. | Polasek #1 | 3,300 | 02533217 |
| 531142Amendment | Apr 30, 2003 | Apr 30, 2003 | Gasper Rice Resources, Ltd. | Polasek #1 | 3,300 | 02533217 |