| 735144 | Mar 14, 2012 | Mar 14, 2012 | Legend Natural Gas III, LP | Starrpro Minerals 'C4' Gas Unit #2 | 12,000 | 42734605 |
| 734737 | Mar 13, 2012 | Mar 13, 2012 | OXY USA Inc. | Barrera, F.-State #8 | 10,500 | 42734600 |
| 734981 | Mar 10, 2012 | Mar 10, 2012 | Legend Natural Gas III, LP | Starrpro Minerals 'C1' Gas Unit #2 | 12,000 | 42734604 |
| 734981Amendment | Mar 10, 2012 | Mar 10, 2012 | Legend Natural Gas III, LP | Starrpro Minerals 'C1' Gas Unit #2 | 12,000 | 42734604 |
| 734739 | Mar 10, 2012 | Mar 10, 2012 | OXY USA Inc. | Bentsen Bros. 'B' #17 | 10,500 | 42734603 |
| 734740 | Mar 8, 2012 | Mar 8, 2012 | OXY USA Inc. | Bentsen Bros. 'B' #18 | 10,500 | 42734601 |
| 734738 | Mar 8, 2012 | Mar 8, 2012 | OXY USA Inc. | Bentsen Bros. - State #15 | 10,500 | 42734602 |
| 732988 | Feb 28, 2012 | Feb 28, 2012 | Apache Corporation | Bloomberg, Samuel D. #45 | 9,000 | 42733889 |
| 733412 | Feb 17, 2012 | Feb 17, 2012 | Legend Natural Gas IV, LP | M S de Flores #6 | 10,400 | 42734599 |
| 732936 | Feb 10, 2012 | Feb 10, 2012 | Hughes, Dan A. Company, L.P. | Reilly Heirs #2 | 8,000 | 42734598 |
| 732623 | Feb 6, 2012 | Feb 6, 2012 | Legend Natural Gas IV, LP | Samano #60 | 10,500 | 42734597 |
| 732237 | Feb 3, 2012 | Feb 3, 2012 | Forest Oil Corporation | T.B. Slick Estate a 529 #263 | 7,500 | 42734596 |
| 732207 | Feb 3, 2012 | Feb 3, 2012 | Forest Oil Corporation | T.B. Slick Estate a 529 #262 | 8,000 | 42734595 |
| 732226 | Feb 1, 2012 | Feb 1, 2012 | Smith Production Inc. | Falcon #1 | 13,000 | 42734594 |
| 732225 | Feb 1, 2012 | Feb 1, 2012 | Smith Production Inc. | Cook-Thompson #1 | 10,000 | 42734593 |
| 732419 | Jan 30, 2012 | Jan 30, 2012 | Howard Exploration, Inc. | Guerra #2 | 5,500 | 42733306 |
| 731585 | Jan 21, 2012 | Jan 21, 2012 | Apache Corporation | Bloomberg, Samuel D. #29 | 13,000 | 42733720 |
| 731506 | Jan 19, 2012 | Jan 19, 2012 | Forest Oil Corporation | T.B. Slick Estate B 536 #264 | 7,800 | 42734592 |
| 730760 | Jan 4, 2012 | Jan 4, 2012 | Legend Natural Gas IV, LP | Ruiz-Zamora #4 | 10,000 | 42734591 |
| 730760Amendment | Jan 4, 2012 | Jan 4, 2012 | Legend Natural Gas IV, LP | Ruiz-Zamora #4 | 11,000 | 42734591 |
| 730748 | Jan 3, 2012 | Jan 3, 2012 | Legend Natural Gas IV, LP | Acevedo #3 | 10,000 | 42734590 |
| 730694 | Jan 3, 2012 | Jan 3, 2012 | Legend Natural Gas IV, LP | M S de Flores #5 | 10,000 | 42734589 |
| 730653 | Dec 29, 2011 | Dec 29, 2011 | Legend Natural Gas III, LP | Sheerin 'A' #2 | 12,000 | 42734588 |
| 730641 | Dec 29, 2011 | Dec 29, 2011 | Exaro Energy II, LLC | Speer, Geo. H. State -D- #9 | 10,000 | 42734587 |
| 730245 | Dec 21, 2011 | Dec 21, 2011 | OXY USA Inc. | T.B. Slick Estate #243 | 13,000 | 42734585 |
| 730244 | Dec 21, 2011 | Dec 21, 2011 | OXY USA Inc. | T.B. Slick Estate #242 | 13,000 | 42734586 |
| 730111 | Dec 20, 2011 | Dec 20, 2011 | Exaro Energy II, LLC | Hall, C. M. -C- #9 | 10,000 | 42734584 |
| 730107 | Dec 20, 2011 | Dec 20, 2011 | Exaro Energy II, LLC | Hall, C. M. -A- #15 | 10,000 | 42734580 |
| 730067 | Dec 20, 2011 | Dec 20, 2011 | Rlu Operating, LLC | Garza Heirs Unit 2 #1 | 6,800 | 42734579 |
| 730067Amendment | Dec 20, 2011 | Dec 20, 2011 | Rlu Operating, LLC | Garza Heirs Unit 2 #1 | 6,800 | 42734579 |
| 730036 | Dec 20, 2011 | Dec 20, 2011 | Exaro Energy II, LLC | Hall, C. M. -A- #18 | 10,000 | 42734583 |
| 730032 | Dec 20, 2011 | Dec 20, 2011 | Exaro Energy II, LLC | Hall, C.M. -A- #17 | 10,000 | 42734582 |
| 730019 | Dec 20, 2011 | Dec 20, 2011 | Exaro Energy II, LLC | Hall, C. M. -A- #16 | 10,000 | 42734581 |
| 729929 | Dec 16, 2011 | Dec 16, 2011 | US Liquids of la., L.P. | Yzaguirre #3 | 8,313 | 42732555 |
| 729271 | Dec 6, 2011 | Dec 6, 2011 | OXY USA Inc. | TB Slick Estate #241 | 13,000 | 42734578 |
| 728806 | Nov 29, 2011 | Nov 29, 2011 | Milagro Exploration, LLC | Guerra 'D' #5 | 8,000 | 42733827 |
| 727912 | Nov 28, 2011 | Nov 28, 2011 | OXY USA Inc. | Slick, T. B. Estate #240 | 13,000 | 42734577 |
| 727910 | Nov 10, 2011 | Nov 10, 2011 | OXY USA Inc. | Slick, T. B. Estate #239 | 13,000 | 42734576 |
| 726407 | Oct 20, 2011 | Oct 20, 2011 | Apache Corporation | Slick State B #5 | 12,000 | 42734303 |
| 726371 | Oct 19, 2011 | Oct 19, 2011 | Apache Corporation | Bloomberg, Samuel D. #34 | 10,000 | 42733744 |
| 726144 | Oct 14, 2011 | Oct 14, 2011 | Trap Rock Oil, Ltd. | La Brisa Ranch Partners 91 #L 1 | 7,100 | 42733928 |
| 724100 | Oct 14, 2011 | Oct 14, 2011 | El Paso E & P Company, L. P. | Cow Creek Corporation et Al #3 | 15,500 | 42734235 |
| 726106 | Oct 13, 2011 | Oct 13, 2011 | Trap Rock Oil, Ltd. | La Brisa Ranch Partners 91 #G 3R | 5,000 | 42734575 |
| 725789 | Oct 7, 2011 | Oct 7, 2011 | Legend Natural Gas III, LP | Starrpro Minerals State B #9 | 12,000 | 42734573 |
| 725731 | Oct 7, 2011 | Oct 7, 2011 | Trap Rock Oil, Ltd. | La Brisa Ranch Partners 91 #M 4R | 4,500 | 42734574 |
| 724816 | Sep 28, 2011 | Sep 28, 2011 | Trap Rock Oil, Ltd. | Slick Estate #12D | 4,350 | 42703382 |
| 724665 | Sep 23, 2011 | Sep 23, 2011 | OXY USA Inc. | TB Slick Estate #236 | 13,000 | 42734572 |
| 724664 | Sep 23, 2011 | Sep 23, 2011 | OXY USA Inc. | TB Slick Estate #232 | 13,000 | 42734571 |
| 724343 | Sep 22, 2011 | Sep 22, 2011 | L & B Oil and Gas Equipment, LLC | Edgerton #1 | 8,140 | 42733978 |
| 723721 | Sep 8, 2011 | Sep 8, 2011 | Apache Corporation | Bloomberg #11 | 7,005 | 42732991 |
| 723013 | Sep 1, 2011 | Sep 1, 2011 | OXY USA Inc. | TB Slick Estate #231 | 13,000 | 42734570 |
| 723048 | Aug 29, 2011 | Aug 29, 2011 | Legend Natural Gas III, LP | Starrpro Minerals B #5 | 12,000 | 42734569 |
| 723048Amendment | Aug 29, 2011 | Aug 29, 2011 | Legend Natural Gas III, LP | Starrpro Minerals B #5 | 12,000 | 42734569 |
| 723019 | Aug 26, 2011 | Aug 26, 2011 | OXY USA Inc. | TB Slick Estate #237 | 13,000 | 42734568 |
| 722599 | Aug 25, 2011 | Aug 25, 2011 | Apache Corporation | Slick State 'B' #4 | 12,000 | 42733943 |
| 722154 | Aug 22, 2011 | Aug 22, 2011 | Exaro Energy II, LLC | Speer, Geo. H. St. 'B' #28ST | 6,898 | 42734506 |
| 722382 | Aug 18, 2011 | Aug 18, 2011 | Rlu Operating, LLC | Ignacia Gutierrez #1 | 4,800 | 42734567 |
| 722159 | Aug 15, 2011 | Aug 15, 2011 | Exaro Energy II, LLC | Speer, Geo. H. St. 'B' #29 | 10,000 | 42734566 |
| 722158 | Aug 15, 2011 | Aug 15, 2011 | Exaro Energy II, LLC | Hall, C.M. -A- #14 | 10,500 | 42734565 |
| 721548 | Aug 12, 2011 | Aug 12, 2011 | Forest Oil Corporation | T.B. Slick Estate 'a' 529 #261 | 8,000 | 42734564 |
| 721794 | Aug 10, 2011 | Aug 10, 2011 | Milagro Exploration, LLC | Cleopatra #11 | 11,500 | 42734563 |
| 721546 | Aug 5, 2011 | Aug 5, 2011 | Forest Oil Corporation | T.B. Slick Estate B 536 #260 | 8,500 | 42734562 |
| 721367 | Aug 3, 2011 | Aug 3, 2011 | Rlu Operating, LLC | Lago #2 | 5,000 | 42734561 |
| 721175 | Aug 1, 2011 | Aug 1, 2011 | Pogo Producing Company LLC | HMC-Tie la Brisa #2 | 6,410 | 42732354 |
| 720705 | Jul 26, 2011 | Jul 26, 2011 | Pogo Producing Company LLC | Coates Estate #6 | 4,180 | 42731913 |
| 720107 | Jul 26, 2011 | Jul 26, 2011 | Legend Natural Gas III, LP | Sheerin Gas Unit #8 | 12,000 | 42734560 |
| 720458 | Jul 20, 2011 | Jul 20, 2011 | Noble Energy Inc | Martinez B #45 | 6,020 | 42732942 |
| 720108 | Jul 15, 2011 | Jul 15, 2011 | Legend Natural Gas III, LP | Starr Produce Co. GU #4 | 12,000 | 42734559 |
| 719909 | Jul 12, 2011 | Jul 12, 2011 | Hughes, Dan A. Company, L.P. | Reilly Heirs #1 | 8,000 | 42734558 |
| 719909Amendment | Jul 12, 2011 | Jul 12, 2011 | Hughes, Dan A. Company, L.P. | Reilly Heirs #1 | 7,500 | 42734558 |
| 719791 | Jul 11, 2011 | Jul 11, 2011 | Legend Natural Gas III, LP | Starrpro Minerals 'C4' Gas Unit #1 | 12,000 | 42734557 |
| 719671 | Jul 11, 2011 | Jul 11, 2011 | Reveille Resources (Texas), Inc. | Garcia #1 | 8,794 | 42733738 |
| 719506 | Jul 5, 2011 | Jul 5, 2011 | Pogo Producing Company LLC | First National Bank of Mission #1 | 7,500 | 42732786 |
| 719110 | Jun 30, 2011 | Jun 30, 2011 | Senora Resources, Inc. | Lazaro M. Guerra #1 | 5,100 | 42734555 |
| 719123 | Jun 29, 2011 | Jun 29, 2011 | Senora Resources, Inc. | Lazaro M. Guerra 2 #2 | 5,700 | 42734556 |
| 717666 | Jun 16, 2011 | Jun 16, 2011 | Legend Natural Gas III, LP | Sheerin 'D' #3 | 12,000 | 42734554 |
| 717621 | Jun 6, 2011 | Jun 6, 2011 | McDay Energy Corp. | Btlt Offset #1 | 7,000 | 42734553 |
| 713361 | Jun 3, 2011 | Jun 3, 2011 | Forest Oil Corporation | T.B. Slick Estate 'C' 221 #215 | 5,920 | 42734011 |
| 717265 | May 27, 2011 | May 27, 2011 | Legend Natural Gas III, LP | Barrera Gas Unit #3 | 12,000 | 42734552 |
| 715274 | May 6, 2011 | May 6, 2011 | Kinder Morgan Tejas Pipeline LLC | Christoval Garcia #13 | 300 | 42734551 |
| 715145 | May 2, 2011 | May 2, 2011 | OXY USA Inc. | Slick, T. B. Estate #238 | 13,000 | 42734550 |
| 714840 | Apr 28, 2011 | Apr 28, 2011 | OXY USA Inc. | Slick, T. B. Estate #235 | 13,000 | 42734549 |
| 713051 | Apr 5, 2011 | Apr 5, 2011 | OXY USA Inc. | Slick, T. B. Estate #233 | 13,000 | 42734548 |
| 712707 | Mar 28, 2011 | Mar 28, 2011 | Trap Rock Oil, Ltd. | Slick Estate #1D | 4,100 | 42703373 |
| 709605 | Mar 28, 2011 | Mar 28, 2011 | Texas Independent Explor Ltd. | Bentsen Bros. -A- #4 | 9,800 | 42700866 |
| 712422 | Mar 23, 2011 | Mar 23, 2011 | OXY USA Inc. | Slick, T.B. Estate #234 | 13,000 | 42734547 |
| 711434 | Mar 15, 2011 | Mar 15, 2011 | Cico Oil & Gas Company | Garcia Heirs #2 | 8,000 | 42734545 |
| 710344 | Mar 14, 2011 | Mar 14, 2011 | Neuhaus, V. F. Properties, Inc. | Farias Unit #6 | 3,000 | 42734541 |
| 710344Amendment | Mar 14, 2011 | Mar 14, 2011 | Neuhaus, V. F. Properties, Inc. | Farias Unit #6 | 3,000 | 42734541 |
| 711386 | Mar 11, 2011 | Mar 11, 2011 | Forest Oil Corporation | T.B. Slick Estate B 536 #256 | 7,200 | 42734546 |
| 710911 | Mar 1, 2011 | Mar 1, 2011 | Lpes, Inc. | Watts #5 | 5,500 | 42734544 |
| 710838 | Feb 25, 2011 | Feb 25, 2011 | Lpes, Inc. | Guerra/Labrisa Ranch #4 | 4,800 | 42734543 |
| 710760 | Feb 24, 2011 | Feb 24, 2011 | OXY USA Inc. | Slick, T. B. Estate #230 | 13,000 | 42734542 |
| 709794 | Feb 18, 2011 | Feb 18, 2011 | Forest Oil Corporation | T.B. Slick Estate B 536 #255 | 8,200 | 42734540 |
| 708545 | Jan 25, 2011 | Jan 25, 2011 | Rlu Operating, LLC | Lago #1 | 4,800 | 42734539 |
| 707649 | Jan 20, 2011 | Jan 20, 2011 | Kerr-McGee Oil & Gas Onshore LP | Slick Estate C #17 | 10,000 | 42733350 |
| 707630 | Jan 20, 2011 | Jan 20, 2011 | Kerr-McGee Oil & Gas Onshore LP | Slick Estate -C- #11 | 10,000 | 42733078 |
| 707539 | Jan 3, 2011 | Jan 3, 2011 | Forest Oil Corporation | T.B. Slick Estate B 536 #258 | 7,700 | 42734538 |
| 707651 | Dec 30, 2010 | Dec 30, 2010 | Hughes, Dan A. Company, L.P. | Frost National Bank #1 | 9,610 | 42734525 |
| 707310 | Dec 21, 2010 | Dec 21, 2010 | Shell Western E&P | Slick, T. B. Estate #228 | 15,000 | 42734537 |