| 714272 | Apr 19, 2011 | Apr 19, 2011 | 375 Energy, Inc. | Wilborn #1 | 7,946 | 49736044 |
| 714234 | Apr 18, 2011 | Apr 18, 2011 | Devon Energy Production Co, L.P. | Dean, H.A. GU 2 #1HH | 9,000 | 49737267 |
| 714105 | Apr 15, 2011 | Apr 15, 2011 | Richey, Ray Management Co., Inc. | McClung #1HH | 10,500 | 49737266 |
| 714105Amendment | Apr 15, 2011 | Apr 15, 2011 | Richey, Ray Management Co., Inc. | B.W. McClung #2HH | 10,500 | 49737266 |
| 714095 | Apr 15, 2011 | Apr 15, 2011 | Richey, Ray Management Co., Inc. | Lumsden Unit #1HH | 10,000 | 49737265 |
| 714095Amendment | Apr 15, 2011 | Apr 15, 2011 | Richey, Ray Management Co., Inc. | Lumsden Unit #1HH | 10,000 | 49737265 |
| 713278 | Apr 12, 2011 | Apr 12, 2011 | Burlington Resources O & G Co LP | Forman C #2HH | 9,000 | 49737264 |
| 713274 | Apr 12, 2011 | Apr 12, 2011 | Burlington Resources O & G Co LP | Forman C #1HH | 9,000 | 49737263 |
| 713159 | Apr 12, 2011 | Apr 12, 2011 | Burlington Resources O & G Co LP | Forman-Brown #1HH | 9,000 | 49737262 |
| 713725 | Apr 11, 2011 | Apr 11, 2011 | Pioneer Natural Res. USA, Inc. | Kirkbride A #2HH | 9,000 | 49737260 |
| 713723 | Apr 11, 2011 | Apr 11, 2011 | Pioneer Natural Res. USA, Inc. | Kirkbride A #1HH | 9,000 | 49737261 |
| 713723Amendment | Apr 11, 2011 | Apr 11, 2011 | Pioneer Natural Res. USA, Inc. | Kirkbride A #1HH | 9,000 | 49737261 |
| 713679 | Apr 11, 2011 | Apr 11, 2011 | Devon Energy Production Co, L.P. | F. P. Parsons Federal Unit #1HH | 9,000 | 49737259 |
| 713637 | Apr 11, 2011 | Apr 11, 2011 | XTO Energy Inc. | R E Petty Unit #8HH | 12,000 | 49737258 |
| 713637Amendment | Apr 11, 2011 | Apr 11, 2011 | XTO Energy Inc. | R E Petty Unit #8HH | 12,000 | 49737258 |
| 713634 | Apr 11, 2011 | Apr 11, 2011 | XTO Energy Inc. | R E Petty Unit #7HH | 12,000 | 49737257 |
| 713634Amendment | Apr 11, 2011 | Apr 11, 2011 | XTO Energy Inc. | R E Petty Unit #7HH | 12,000 | 49737257 |
| 713631 | Apr 8, 2011 | Apr 8, 2011 | XTO Energy Inc. | R E Petty Unit #6HH | 12,000 | 49737256 |
| 713631Amendment | Apr 8, 2011 | Apr 8, 2011 | XTO Energy Inc. | R E Petty Unit #6HH | 12,000 | 49737256 |
| 713625 | Apr 8, 2011 | Apr 8, 2011 | XTO Energy Inc. | R E Petty Unit #5HH | 12,000 | 49737255 |
| 713625Amendment | Apr 8, 2011 | Apr 8, 2011 | XTO Energy Inc. | R E Petty Unit #5HH | 12,000 | 49737255 |
| 713622 | Apr 8, 2011 | Apr 8, 2011 | XTO Energy Inc. | R E Petty Unit #4HH | 12,000 | 49737254 |
| 713622Amendment | Apr 8, 2011 | Apr 8, 2011 | XTO Energy Inc. | R E Petty Unit #4HH | 12,000 | 49737254 |
| 713619 | Apr 8, 2011 | Apr 8, 2011 | XTO Energy Inc. | R E Petty Unit #3HH | 12,000 | 49737253 |
| 713619Amendment | Apr 8, 2011 | Apr 8, 2011 | XTO Energy Inc. | R E Petty Unit #3HH | 12,000 | 49737253 |
| 713578 | Apr 8, 2011 | Apr 8, 2011 | J-W Operating Co. | Strickland #34HH | 15,000 | 49737252 |
| 713530 | Apr 7, 2011 | Apr 7, 2011 | Aruba Petroleum, Inc. | Gettys #1HH | 9,000 | 49737251 |
| 712846 | Apr 7, 2011 | Apr 7, 2011 | Devon Energy Production Co, L.P. | Taylor-Hornback (SA) "A" #1HH | 9,000 | 49737239 |
| 713322 | Apr 6, 2011 | Apr 6, 2011 | Devon Energy Production Co, L.P. | Taylor-Taylor a (SA) "A" #2HH | 9,000 | 49737250 |
| 713315 | Apr 6, 2011 | Apr 6, 2011 | Devon Energy Production Co, L.P. | Taylor-Taylor a (SA) 'A' #1HH | 9,000 | 49737249 |
| 713252 | Apr 6, 2011 | Apr 6, 2011 | Devon Energy Production Co, L.P. | Taylor 'A'-Taylor (SA) #1HH | 9,000 | 49737248 |
| 713026 | Mar 31, 2011 | Mar 31, 2011 | Enervest Operating, L.L.C. | Trwd #F 6H | 9,000 | 49737247 |
| 713025 | Mar 31, 2011 | Mar 31, 2011 | Enervest Operating, L.L.C. | Trwd #F 5H | 9,000 | 49737246 |
| 712930 | Mar 31, 2011 | Mar 31, 2011 | Pioneer Natural Res. USA, Inc. | Alvord Unit 1 #1HH | 9,000 | 49737242 |
| 712981 | Mar 30, 2011 | Mar 30, 2011 | Enervest Operating, L.L.C. | Trwd #F 4H | 9,000 | 49737245 |
| 712933 | Mar 30, 2011 | Mar 30, 2011 | Pioneer Natural Res. USA, Inc. | Alvord Unit 1 #3HH | 9,000 | 49737243 |
| 712931 | Mar 30, 2011 | Mar 30, 2011 | Pioneer Natural Res. USA, Inc. | Alvord Unit 1 #2HH | 9,000 | 49737244 |
| 712910 | Mar 30, 2011 | Mar 30, 2011 | Tema Oil and Gas Company | Green #4 | 6,100 | 49737241 |
| 712868 | Mar 30, 2011 | Mar 30, 2011 | Devon Energy Production Co, L.P. | Cora Taylor 'A' #9HH | 9,000 | 49737240 |
| 712798 | Mar 30, 2011 | Mar 30, 2011 | Devon Energy Production Co, L.P. | Hornback-Taylor (SA) 'A' #1HH | 9,000 | 49737237 |
| 712824 | Mar 29, 2011 | Mar 29, 2011 | Tema Oil and Gas Company | Thompson #1HH | 10,500 | 49737238 |
| 712824Amendment | Mar 29, 2011 | Mar 29, 2011 | Tema Oil and Gas Company | Thompson #1HH | 10,500 | 49737238 |
| 712753 | Mar 28, 2011 | Mar 28, 2011 | Devon Energy Production Co, L.P. | Hornback-O'Neal 'a' (SA) #1HH | 9,000 | 49737236 |
| 712012 | Mar 16, 2011 | Mar 16, 2011 | Devon Energy Production Co, L.P. | Wcco 4-Ada Morris #29HH | 9,000 | 49737232 |
| 711956 | Mar 16, 2011 | Mar 16, 2011 | Devon Energy Production Co, L.P. | W. A. Askey "B" #12HH | 9,000 | 49737230 |
| 711956Amendment | Mar 16, 2011 | Mar 16, 2011 | Devon Energy Production Co, L.P. | W. A. Askey 'B' #12HH | 9,000 | 49737230 |
| 711613 | Mar 16, 2011 | Mar 16, 2011 | Devon Energy Production Co, L.P. | J. M. Sauder #4HH | 9,000 | 49737231 |
| 711571 | Mar 15, 2011 | Mar 15, 2011 | Burlington Resources O & G Co LP | Bishop A #4HH | 9,000 | 49737228 |
| 711369 | Mar 15, 2011 | Mar 15, 2011 | Devon Energy Production Co, L.P. | Frank B-Kyle (SA) 'B' #1HH | 7,205 | 49737229 |
| 711839 | Mar 14, 2011 | Mar 14, 2011 | Devon Energy Production Co, L.P. | Gage-Johnson a (SA) 'A' #2HH | 9,000 | 49737226 |
| 711327 | Mar 14, 2011 | Mar 14, 2011 | Devon Energy Production Co, L.P. | Frank B-Kyle (SA) 'A' #1HH | 9,000 | 49737227 |
| 711783 | Mar 11, 2011 | Mar 11, 2011 | Devon Energy Production Co, L.P. | Gage-Johnson a (SA) 'A' #1HH | 9,000 | 49737225 |
| 711258 | Mar 11, 2011 | Mar 11, 2011 | Devon Energy Production Co, L.P. | Currie-Frank B (SA) 'A' #1HH | 9,000 | 49737223 |
| 711672 | Mar 10, 2011 | Mar 10, 2011 | Devon Energy Production Co, L.P. | Bryan-Askey GU #8HH | 9,000 | 49737224 |
| 711012 | Mar 4, 2011 | Mar 4, 2011 | Aruba Petroleum, Inc. | Stevens, Arthur #4HH | 9,000 | 49737221 |
| 710845 | Mar 3, 2011 | Mar 3, 2011 | Devon Energy Production Co, L.P. | Bernie Bowden #1HH | 9,000 | 49737222 |
| 711011 | Feb 28, 2011 | Feb 28, 2011 | Aruba Petroleum, Inc. | Stevens, Arthur #3HH | 9,000 | 49737220 |
| 710564 | Feb 25, 2011 | Feb 25, 2011 | Devon Energy Production Co, L.P. | Whitesell 'A'-Kyle (SA) #1HH | 9,000 | 49737218 |
| 710552 | Feb 25, 2011 | Feb 25, 2011 | Devon Energy Production Co, L.P. | Whitesell 'A'-Frank 'B' (SA) #1HH | 9,000 | 49737217 |
| 709952 | Feb 24, 2011 | Feb 24, 2011 | Burlington Resources O & G Co LP | Fortenberry a Unit #1HH | 9,000 | 49737213 |
| 710182 | Feb 23, 2011 | Feb 23, 2011 | Burlington Resources O & G Co LP | Stone a Unit #2HH | 9,000 | 49737216 |
| 710176 | Feb 22, 2011 | Feb 22, 2011 | Burlington Resources O & G Co LP | Stone a Unit #1HH | 9,000 | 49737215 |
| 710132 | Feb 22, 2011 | Feb 22, 2011 | Devon Energy Production Co, L.P. | Clarence Wallace #1HH | 9,000 | 49737214 |
| 710326 | Feb 18, 2011 | Feb 18, 2011 | Devon Energy Production Co, L.P. | Taylor-Norman "a" (SA) A #1HH | 9,000 | 49737212 |
| 710326Amendment | Feb 18, 2011 | Feb 18, 2011 | Devon Energy Production Co, L.P. | Taylor-Norman 'a' (SA) A #1HH | 9,000 | 49737212 |
| 709545 | Feb 11, 2011 | Feb 11, 2011 | Eagleridge Operating, LLC | Oates #4HH | 8,000 | 49737210 |
| 709545Amendment | Feb 11, 2011 | Feb 11, 2011 | Eagleridge Operating, LLC | Oates #4HH | 8,000 | 49737210 |
| 709543 | Feb 11, 2011 | Feb 11, 2011 | Eagleridge Operating, LLC | Oates #3HH | 8,000 | 49735471 |
| 709540 | Feb 11, 2011 | Feb 11, 2011 | Eagleridge Operating, LLC | Oates #2HH | 8,000 | 49735130 |
| 709539 | Feb 11, 2011 | Feb 11, 2011 | Eagleridge Operating, LLC | Oates #1HH | 8,000 | 49735129 |
| 709618 | Feb 10, 2011 | Feb 10, 2011 | Pioneer Natural Res. USA, Inc. | Morrison #2HH | 9,000 | 49737211 |
| 709618Amendment | Feb 10, 2011 | Feb 10, 2011 | Pioneer Natural Res. USA, Inc. | Morrison #2HH | 9,500 | 49737211 |
| 709630 | Feb 8, 2011 | Feb 8, 2011 | J-W Operating Co. | Strickland #26H | 15,000 | 49737207 |
| 709611 | Feb 8, 2011 | Feb 8, 2011 | Pioneer Natural Res. USA, Inc. | Morrison #1HH | 9,000 | 49737209 |
| 709641 | Feb 4, 2011 | Feb 4, 2011 | Devon Energy Production Co, L.P. | Wcco 1-T. P. Sims 'B' #10HH | 9,000 | 49737208 |
| 709640 | Feb 4, 2011 | Feb 4, 2011 | Devon Energy Production Co, L.P. | Wcco 1-T. P. Sims 'B' #9HH | 9,000 | 49737206 |
| 709196 | Feb 4, 2011 | Feb 4, 2011 | Devon Energy Production Co, L.P. | A. L. Moncrief 'A' #1HH | 9,000 | 49737205 |
| 708853 | Feb 3, 2011 | Feb 3, 2011 | Devon Energy Production Co, L.P. | Wcco 1-Reed (SA) #1HH | 9,000 | 49737204 |
| 708523 | Jan 25, 2011 | Jan 25, 2011 | Burlington Resources O & G Co LP | Forman E Unit #1HH | 9,000 | 49737203 |
| 708467 | Jan 21, 2011 | Jan 21, 2011 | Western Chief Operating, L.L.C. | Park Spring #1 HH | 7,000 | 49737202 |
| 708416 | Jan 21, 2011 | Jan 21, 2011 | Devon Energy Production Co, L.P. | G. P. North #1HH | 9,000 | 49737201 |
| 708421 | Jan 14, 2011 | Jan 14, 2011 | Devon Energy Production Co, L.P. | Wcco 1-Doris Stevenson #13HH | 9,000 | 49737199 |
| 708419 | Jan 14, 2011 | Jan 14, 2011 | Devon Energy Production Co, L.P. | Wcco 1-Doris Stevenson #12HH | 9,000 | 49737200 |
| 707881 | Jan 14, 2011 | Jan 14, 2011 | Devon Energy Production Co, L.P. | Clark 'B'-O'Neal 'a' (SA) #1HH | 9,000 | 49737198 |
| 707585 | Jan 6, 2011 | Jan 6, 2011 | Burlington Resources O & G Co LP | Forman D Unit #2HH | 9,000 | 49737197 |
| 707585Amendment | Jan 6, 2011 | Jan 6, 2011 | Burlington Resources O & G Co LP | Forman D Unit #2HH | 9,000 | 49737197 |
| 707583 | Jan 6, 2011 | Jan 6, 2011 | Burlington Resources O & G Co LP | Forman D Unit #1HH | 9,000 | 49737196 |
| 707583Amendment | Jan 6, 2011 | Jan 6, 2011 | Burlington Resources O & G Co LP | Forman D Unit #1HH | 9,000 | 49737196 |
| 707588 | Dec 29, 2010 | Dec 29, 2010 | Braden Exploration, LLC | Endres Coop Unit #1HH | 9,000 | 49737195 |
| 707574 | Dec 29, 2010 | Dec 29, 2010 | Braden Exploration, LLC | Rhodes Unit #1HH | 9,000 | 49737194 |
| 707574Amendment | Dec 29, 2010 | Dec 29, 2010 | Braden Exploration, LLC | Rhodes Unit #1HH | 9,000 | 49737194 |
| 707363 | Dec 22, 2010 | Dec 22, 2010 | Braden Exploration, LLC | Gladys Smith a Unit #1HH | 8,900 | 49737193 |
| 707363Amendment | Dec 22, 2010 | Dec 22, 2010 | Enervest Operating, L.L.C. | Gladys Smith a Unit #1HH | 8,900 | 49737193 |
| 707111 | Dec 17, 2010 | Dec 17, 2010 | Braden Exploration, LLC | Wilborn Unit #1HH | 9,000 | 49737192 |
| 703632 | Dec 8, 2010 | Dec 8, 2010 | Fairway Resources Operating, LLC | Wolfe-Guinn-Renfro "A" #12 | 6,200 | 49736705 |
| 705790 | Dec 2, 2010 | Dec 2, 2010 | Eagleridge Operating, LLC | Neil #3HH | 7,800 | 49737191 |
| 705788 | Dec 2, 2010 | Dec 2, 2010 | Eagleridge Operating, LLC | Neil #1HH | 7,800 | 49736072 |
| 705942 | Nov 30, 2010 | Nov 30, 2010 | Richey, Ray Management Co., Inc. | Marion Green Unit #2HH | 7,800 | 49737189 |
| 705942Amendment | Nov 30, 2010 | Nov 30, 2010 | Richey, Ray Management Co., Inc. | Marion Green Unit #2HH | 7,800 | 49737189 |
| 705938 | Nov 30, 2010 | Nov 30, 2010 | Hopco, Incorporated | Whetsell #2 | 10,000 | 49737190 |