| 721942 | Aug 11, 2011 | Aug 11, 2011 | Occidental Permian Ltd. | Yoakum | Denver Unit #324450135843 | 5,800 |
| 721696 | Aug 9, 2011 | Aug 9, 2011 | Occidental Permian Ltd. | Yoakum | Denver Unit #324250135840 | 5,800 |
| 721694 | Aug 9, 2011 | Aug 9, 2011 | Occidental Permian Ltd. | Yoakum | Denver Unit #324150135839 | 5,800 |
| 721640 | Aug 9, 2011 | Aug 9, 2011 | Occidental Permian Ltd. | Yoakum | Denver Unit #323750135835 | 5,800 |
| 721648 | Aug 8, 2011 | Aug 8, 2011 | Occidental Permian Ltd. | Yoakum | Denver Unit #324050135838 | 5,800 |
| 721646 | Aug 8, 2011 | Aug 8, 2011 | Occidental Permian Ltd. | Yoakum | Denver Unit #323950135837 | 5,800 |
| 721641 | Aug 8, 2011 | Aug 8, 2011 | Occidental Permian Ltd. | Yoakum | Denver Unit #323850135836 | 5,800 |
| 718819 | Jul 25, 2011 | Jul 25, 2011 | Occidental Permian Ltd. | Ector | South Foster Unit #22013541247 | 4,600 |
| 718809 | Jul 25, 2011 | Jul 25, 2011 | Occidental Permian Ltd. | Ector | F. Foster #1913541246 | 4,600 |
| 718801 | Jul 25, 2011 | Jul 25, 2011 | Occidental Permian Ltd. | Ector | F. Foster #1813541245 | 4,600 |
| 720332 | Jul 20, 2011 | Jul 20, 2011 | Occidental Permian Ltd. | Martin | South Curtis Ranch #210331737041 | 11,500 |
| 720296 | Jul 20, 2011 | Jul 20, 2011 | Occidental Permian Ltd. | Midland | South Curtis Ranch #110332937470 | 11,500 |
| 718373 | Jul 20, 2011 | Jul 20, 2011 | Occidental Permian Ltd. | Yoakum | Central Ownby Unit #150650134045 | 7,200 |
| 720337 | Jul 19, 2011 | Jul 19, 2011 | Occidental Permian Ltd. | Martin | South Curtis Ranch #231531737042 | 11,500 |
| 720198 | Jul 15, 2011 | Jul 15, 2011 | Occidental Permian Ltd. | Gaines | Flanagan Unit #74116537434 | 7,500 |
| 720198Amendment | Jul 15, 2011 | Jul 15, 2011 | Occidental Permian Ltd. | Gaines | Flanagan Unit #10616537434 | 7,500 |
| 720196 | Jul 15, 2011 | Jul 15, 2011 | Occidental Permian Ltd. | Gaines | Flanagan Unit #68116537433 | 7,500 |
| 720196Amendment | Jul 15, 2011 | Jul 15, 2011 | Occidental Permian Ltd. | Gaines | Flanagan Unit #69116537433 | 7,500 |
| 718547 | Jul 15, 2011 | Jul 15, 2011 | Occidental Permian Ltd. | Yoakum | Central Ownby Unit #170650134459 | 6,792 |
| 719678 | Jul 14, 2011 | Jul 14, 2011 | Occidental Permian Ltd. | Yoakum | Wasson Odc Unit #765R50135828 | 5,600 |
| 719285 | Jun 29, 2011 | Jun 29, 2011 | Occidental Permian Ltd. | Yoakum | Wasson Odc Unit #77750135813 | 5,600 |
| 719281 | Jun 29, 2011 | Jun 29, 2011 | Occidental Permian Ltd. | Yoakum | Wasson Odc Unit #77350135812 | 5,600 |
| 719280 | Jun 29, 2011 | Jun 29, 2011 | Occidental Permian Ltd. | Yoakum | Wasson Odc Unit #77250135811 | 5,600 |
| 719269 | Jun 29, 2011 | Jun 29, 2011 | Occidental Permian Ltd. | Yoakum | Wasson Odc Unit #76950135810 | 5,600 |
| 719258 | Jun 29, 2011 | Jun 29, 2011 | Occidental Permian Ltd. | Yoakum | Wasson Odc Unit #77150135809 | 5,600 |
| 719250 | Jun 29, 2011 | Jun 29, 2011 | Occidental Permian Ltd. | Yoakum | Wasson Odc Unit #76850135808 | 5,600 |
| 719215 | Jun 28, 2011 | Jun 28, 2011 | Occidental Permian Ltd. | Yoakum | Wasson Odc Unit #76750135807 | 5,600 |
| 718771 | Jun 24, 2011 | Jun 24, 2011 | Occidental Permian Ltd. | Ector | Witcher, J. E. -PA- #1813541244 | 4,600 |
| 718768 | Jun 24, 2011 | Jun 24, 2011 | Occidental Permian Ltd. | Ector | Witcher, J. E. -7- #1613541243 | 4,600 |
| 718766 | Jun 24, 2011 | Jun 24, 2011 | Occidental Permian Ltd. | Ector | Witcher, J. E. #13713541242 | 4,600 |
| 718766Amendment | Jun 24, 2011 | Jun 24, 2011 | Occidental Permian Ltd. | Ector | Witcher, J. E. #13713541242 | 4,600 |
| 718468 | Jun 22, 2011 | Jun 22, 2011 | Occidental Permian Ltd. | Ector | West Grayburg #4013541240 | 4,500 |
| 718468Amendment | Jun 22, 2011 | Jun 22, 2011 | Occidental Permian Ltd. | Ector | West Grayburg Unit #4013541240 | 4,500 |
| 718465 | Jun 22, 2011 | Jun 22, 2011 | Occidental Permian Ltd. | Ector | West Grayburg #3913541239 | 4,500 |
| 718458 | Jun 22, 2011 | Jun 22, 2011 | Occidental Permian Ltd. | Ector | West Grayburg #3813541237 | 4,500 |
| 718454 | Jun 22, 2011 | Jun 22, 2011 | Occidental Permian Ltd. | Ector | West Grayburg #3713541236 | 4,500 |
| 718454Amendment | Jun 22, 2011 | Jun 22, 2011 | Occidental Permian Ltd. | Ector | West Grayburg Unit #3713541236 | 4,500 |
| 718385 | Jun 22, 2011 | Jun 22, 2011 | Occidental Permian Ltd. | Hockley | Slaughter Consolidated #425H21936720 | 8,600 |
| 718662 | Jun 21, 2011 | Jun 21, 2011 | Occidental Permian Ltd. | Martin | South Curtis Ranch #330431736950 | 11,500 |
| 718654 | Jun 21, 2011 | Jun 21, 2011 | Occidental Permian Ltd. | Martin | South Curtis Ranch #211031736949 | 11,500 |
| 718652 | Jun 21, 2011 | Jun 21, 2011 | Occidental Permian Ltd. | Martin | South Curtis Ranch #210431736948 | 11,500 |
| 718650 | Jun 21, 2011 | Jun 21, 2011 | Occidental Permian Ltd. | Martin | South Curtis Ranch #281031736947 | 11,500 |
| 718641 | Jun 21, 2011 | Jun 21, 2011 | Occidental Permian Ltd. | Martin | South Curtis Ranch #280431736946 | 11,500 |
| 718423 | Jun 21, 2011 | Jun 21, 2011 | Occidental Permian Ltd. | Ector | North Cowden Unit #159613541238 | 5,000 |
| 716442 | Jun 16, 2011 | Jun 16, 2011 | Occidental Permian Ltd. | Hockley | Slaughter Consolidated #409H21932531 | 8,600 |
| 718246 | Jun 15, 2011 | Jun 15, 2011 | Occidental Permian Ltd. | Yoakum | Central Ownby Unit #210650135799 | 7,600 |
| 718246Amendment | Jun 15, 2011 | Jun 15, 2011 | Occidental Permian Ltd. | Yoakum | Central Ownby Unit #210650135799 | 7,600 |
| 718245 | Jun 15, 2011 | Jun 15, 2011 | Occidental Permian Ltd. | Yoakum | Central Ownby Unit #190850135798 | 7,600 |
| 718245Amendment | Jun 15, 2011 | Jun 15, 2011 | Occidental Permian Ltd. | Yoakum | Central Ownby Unit #190850135798 | 7,600 |
| 718244 | Jun 15, 2011 | Jun 15, 2011 | Occidental Permian Ltd. | Yoakum | Central Ownby Unit #170850135797 | 7,600 |
| 718244Amendment | Jun 15, 2011 | Jun 15, 2011 | Occidental Permian Ltd. | Yoakum | Central Ownby Unit #170850135797 | 7,600 |
| 715187 | Jun 13, 2011 | Jun 13, 2011 | Occidental Permian Ltd. | Ector | South Foster Unit #218W13541071 | 4,600 |
| 715187Amendment | Jun 13, 2011 | Jun 13, 2011 | Occidental Permian Ltd. | Ector | South Foster Unit #218W13541071 | 4,600 |
| 717451 | Jun 3, 2011 | Jun 3, 2011 | Occidental Permian Ltd. | Hockley | Slaughter Estate Unit #39021937201 | 5,200 |
| 714180 | Jun 1, 2011 | Jun 1, 2011 | Occidental Permian Ltd. | Upton | North Cross /Dev./ Unit #162H46137358 | 5,800 |
| 717069 | May 30, 2011 | May 30, 2011 | Occidental Permian Ltd. | Hockley | Levelland Unit #122521937200 | 5,200 |
| 717179 | May 26, 2011 | May 26, 2011 | Occidental Permian Ltd. | Martin | South Curtis Ranch #230931736889 | 11,500 |
| 717088 | May 25, 2011 | May 25, 2011 | Occidental Permian Ltd. | Martin | South Curtis Ranch #1416D31736883 | 11,500 |
| 717033 | May 24, 2011 | May 24, 2011 | Occidental Permian Ltd. | Martin | South Curtis Ranch #141231736880 | 11,500 |
| 717020 | May 24, 2011 | May 24, 2011 | Occidental Permian Ltd. | Martin | South Curtis Ranch #140331736878 | 11,500 |
| 716999 | May 24, 2011 | May 24, 2011 | Occidental Permian Ltd. | Martin | South Curtis Ranch #140131736877 | 11,500 |
| 716438 | May 24, 2011 | May 24, 2011 | Occidental Permian Ltd. | Andrews | Midland Farms Unit #24500300096 | 4,900 |
| 716819 | May 23, 2011 | May 23, 2011 | Occidental Permian Ltd. | Yoakum | Wasson Odc Unit #78350135772 | 5,600 |
| 716097 | May 23, 2011 | May 23, 2011 | Occidental Permian Ltd. | Yoakum | Wasson Odc Unit #78450135764 | 5,600 |
| 716425 | May 18, 2011 | May 18, 2011 | Occidental Permian Ltd. | Andrews | Midland Farms Unit #13900305787 | 4,900 |
| 716423 | May 18, 2011 | May 18, 2011 | Occidental Permian Ltd. | Gaines | Flanagan Unit #76116537404 | 7,500 |
| 716423Amendment | May 18, 2011 | May 18, 2011 | Occidental Permian Ltd. | Gaines | Flanagan Unit #76116537404 | 7,500 |
| 716422 | May 18, 2011 | May 18, 2011 | Occidental Permian Ltd. | Andrews | Midland Farms Unit #6000306098 | 4,900 |
| 716107 | May 18, 2011 | May 18, 2011 | Occidental Permian Ltd. | Yoakum | Wasson Odc Unit #78250135766 | 5,600 |
| 716104 | May 18, 2011 | May 18, 2011 | Occidental Permian Ltd. | Yoakum | Wasson Odc Unit #78150135765 | 5,600 |
| 716038 | May 18, 2011 | May 18, 2011 | Occidental Permian Ltd. | Yoakum | Wasson Odc Unit #78050135763 | 5,600 |
| 716369 | May 17, 2011 | May 17, 2011 | Occidental Permian Ltd. | Gaines | Flanagan Unit #75116537403 | 7,500 |
| 716369Amendment | May 17, 2011 | May 17, 2011 | Occidental Permian Ltd. | Gaines | Flanagan Unit #75116537403 | 7,500 |
| 715190 | May 4, 2011 | May 4, 2011 | Occidental Permian Ltd. | Ector | North Cowden Unit #389R13541072 | 5,000 |
| 714895 | Apr 28, 2011 | Apr 28, 2011 | Occidental Permian Ltd. | Yoakum | Prentice (6700 Clearfork) Unit #161850132873 | 8,300 |
| 712276 | Apr 25, 2011 | Apr 25, 2011 | Occidental Permian Ltd. | Ector | South Foster Unit #21913540871 | 4,600 |
| 714459 | Apr 22, 2011 | Apr 22, 2011 | Occidental Permian Ltd. | Ector | North Cowden Unit #160013540944 | 5,000 |
| 714459Amendment | Apr 22, 2011 | Apr 22, 2011 | Occidental Permian Ltd. | Ector | North Cowden Unit #160013540944 | 5,000 |
| 714459Amendment | Apr 22, 2011 | Apr 22, 2011 | Occidental Permian Ltd. | Ector | North Cowden Unit #160013540944 | 5,200 |
| 714457 | Apr 22, 2011 | Apr 22, 2011 | Occidental Permian Ltd. | Ector | North Cowden Unit #159913540943 | 5,000 |
| 714456 | Apr 22, 2011 | Apr 22, 2011 | Occidental Permian Ltd. | Ector | North Cowden Unit #159813540942 | 5,000 |
| 714453 | Apr 22, 2011 | Apr 22, 2011 | Occidental Permian Ltd. | Ector | North Cowden Unit #159713540941 | 5,000 |
| 714444 | Apr 22, 2011 | Apr 22, 2011 | Occidental Permian Ltd. | Ector | North Cowden Unit #159513540940 | 5,000 |
| 712268 | Apr 18, 2011 | Apr 18, 2011 | Occidental Permian Ltd. | Ector | South Foster Unit #21713540870 | 4,600 |
| 712265 | Apr 18, 2011 | Apr 18, 2011 | Occidental Permian Ltd. | Ector | South Foster Unit #21613540869 | 4,600 |
| 713334 | Apr 13, 2011 | Apr 13, 2011 | Occidental Permian Ltd. | Hockley | Slaughter Consolidated #33221937198 | 8,600 |
| 713334Amendment | Apr 13, 2011 | Apr 13, 2011 | Occidental Permian Ltd. | Hockley | Slaughter Consolidated #33221937198 | 11,000 |
| 712920 | Mar 30, 2011 | Mar 30, 2011 | Occidental Permian Ltd. | Midland | South Curtis Ranch #1D32930819 | 13,180 |
| 712065 | Mar 17, 2011 | Mar 17, 2011 | Occidental Permian Ltd. | Yoakum | Bennett Ranch Unit #4217R50135743 | 5,800 |
| 711829 | Mar 11, 2011 | Mar 11, 2011 | Occidental Permian Ltd. | Crane | North Cross /Dev./ Unit #16310335807 | 5,800 |
| 711254 | Mar 9, 2011 | Mar 9, 2011 | Occidental Permian Ltd. | Andrews | Midland Farms Unit #73100335526 | 9,200 |
| 711119 | Mar 8, 2011 | Mar 8, 2011 | Occidental Permian Ltd. | Hockley | Southeast Levelland Unit #37121937191 | 5,200 |
| 711119Amendment | Mar 8, 2011 | Mar 8, 2011 | Occidental Permian Ltd. | Hockley | Southeast Levelland Unit #37121937191 | 5,200 |
| 711119Amendment | Mar 8, 2011 | Mar 8, 2011 | Occidental Permian Ltd. | Hockley | Southeast Levelland Unit #37121937191 | 5,200 |
| 711050 | Mar 4, 2011 | Mar 4, 2011 | Occidental Permian Ltd. | Hockley | Levelland Unit #122421937190 | 5,200 |
| 710869 | Mar 3, 2011 | Mar 3, 2011 | Occidental Permian Ltd. | Ector | North Cowden Unit #232A13534623 | 10,520 |
| 710734 | Feb 28, 2011 | Feb 28, 2011 | Occidental Permian Ltd. | Ector | Frank Cowden R/a -C- #4413534538 | 5,400 |
| 710730 | Feb 28, 2011 | Feb 28, 2011 | Occidental Permian Ltd. | Ector | North Cowden Unit #158913535004 | 5,400 |
| 710767 | Feb 23, 2011 | Feb 23, 2011 | Occidental Permian Ltd. | Scurry | Cogdell Canyon Reef Unit #6053A41503914 | 7,200 |
| 710346 | Feb 22, 2011 | Feb 22, 2011 | Occidental Permian Ltd. | Yoakum | Central Ownby Unit #200850135742 | 7,300 |