| 738485 | May 1, 2012 | May 1, 2012 | Exxon Mobil Corporation | Santa FE Ranch #123 | 15,500 | 04732168 |
| 738485Amendment | May 1, 2012 | May 1, 2012 | Exxon Mobil Corporation | Santa FE Ranch #123 | 15,500 | 04732168 |
| 736570 | Apr 5, 2012 | Apr 5, 2012 | Tecpetrol Operating LLC | Sullivan Deep 'C' Gas Unit No. 1 #E 7 | 15,000 | 04732473 |
| 736122 | Mar 23, 2012 | Mar 23, 2012 | EOG Resources, Inc. | Kleberg, R J Jr TR Quiteria Past #732 | 12,000 | 04732472 |
| 735847 | Mar 16, 2012 | Mar 16, 2012 | Suemaur Expl. & Prod., LLC | La Rucia #K 2 | 11,000 | 04732471 |
| 735416 | Mar 16, 2012 | Mar 16, 2012 | Newfield Exploration Company | La Rucia Ranch #15 | 10,428 | 04731948 |
| 734946 | Mar 10, 2012 | Mar 10, 2012 | Magnum Producing, LP | Cage Ranch #1 | 8,600 | 04732454 |
| 735200 | Mar 8, 2012 | Mar 8, 2012 | EOG Resources, Inc. | Kleberg, R J Jr TR Zach Past #728 | 10,500 | 04732470 |
| 733319 | Feb 17, 2012 | Feb 17, 2012 | EOG Resources, Inc. | Kleberg, R J Jr TR Zach Past #723 | 10,500 | 04732453 |
| 732109 | Jan 30, 2012 | Jan 30, 2012 | Hilcorp Energy Company | Marcel Deluna Gas Unit #2 | 11,606 | 04732117 |
| 731818 | Jan 25, 2012 | Jan 25, 2012 | Tecpetrol Operating LLC | Perez-Alaniz Deep GU #A 2ST | 15,000 | 04732434 |
| 730208 | Dec 28, 2011 | Dec 28, 2011 | Tecpetrol Operating LLC | Sullivan Deep 'D' #2ST | 15,000 | 04732203 |
| 729821 | Dec 15, 2011 | Dec 15, 2011 | Tecpetrol Operating LLC | Sullivan Deep 'F' #1 | 14,500 | 04732261 |
| 728555 | Nov 28, 2011 | Nov 28, 2011 | C & E Operating, Inc. | Trad Gas Unit #3 | 11,000 | 04732469 |
| 728596 | Nov 22, 2011 | Nov 22, 2011 | Exxon Mobil Corporation | Santa FE Ranch #129 | 16,500 | 04732017 |
| 727407 | Nov 3, 2011 | Nov 3, 2011 | Tecpetrol Operating LLC | Perez-Alaniz Deep GU #5 | 15,000 | 04732468 |
| 726787 | Oct 26, 2011 | Oct 26, 2011 | Hilcorp Energy Company | Gloria Garcia Lopez #4 | 11,765 | 04732074 |
| 725920 | Oct 13, 2011 | Oct 13, 2011 | Tecpetrol Operating LLC | Sullivan Deep 'C' Gas Unit No. 1 #6 | 15,000 | 04732467 |
| 723420 | Sep 8, 2011 | Sep 8, 2011 | EOG Resources, Inc. | Kleberg, R J Jr TR Quiteria Past #725 | 14,000 | 04732466 |
| 723420Amendment | Sep 8, 2011 | Sep 8, 2011 | EOG Resources, Inc. | Kleberg, R J Jr TR Quiteria Past #725 | 15,000 | 04732466 |
| 723053 | Aug 29, 2011 | Aug 29, 2011 | Exxon Mobil Corporation | Santa FE Ranch #116 | 16,500 | 04732006 |
| 721580 | Aug 15, 2011 | Aug 15, 2011 | Exxon Mobil Corporation | Santa FE Ranch #129 | 16,500 | 04732017 |
| 721369 | Aug 3, 2011 | Aug 3, 2011 | Tecpetrol Operating LLC | Sullivan Deep 'A' #8 | 15,000 | 04732464 |
| 720242 | Jul 18, 2011 | Jul 18, 2011 | Exxon Mobil Corporation | Santa FE Ranch #122 | 16,500 | 04732118 |
| 719034 | Jun 28, 2011 | Jun 28, 2011 | Tecpetrol Operating LLC | Sullivan Deep 'C' Gas Unit No. 1 #E 4 | 15,000 | 04732463 |
| 718816 | Jun 27, 2011 | Jun 27, 2011 | Mestena Operating, L.L.C. | Tres Puertas #3 | 4,400 | 04732078 |
| 718807 | Jun 25, 2011 | Jun 25, 2011 | Mestena Operating, L.L.C. | East Choro Martines #1 | 7,126 | 04732054 |
| 718817 | Jun 23, 2011 | Jun 23, 2011 | EOG Resources, Inc. | Kleberg, R J Jr TR Viboras Past #724 | 12,000 | 04732462 |
| 718282 | Jun 20, 2011 | Jun 20, 2011 | Welder Exploration & Prod., Inc. | Brooks Heirs #3 | 10,000 | 04732461 |
| 718282Amendment | Jun 20, 2011 | Jun 20, 2011 | Welder Exploration & Prod., Inc. | Brooks Gas Unit #3 | 10,000 | 04732461 |
| 718049 | Jun 13, 2011 | Jun 13, 2011 | Exxon Mobil Corporation | Santa FE Ranch #110 | 16,500 | 04731979 |
| 717729 | Jun 8, 2011 | Jun 8, 2011 | EOG Resources, Inc. | Viboras Field GU No. 1 #Q721 | 9,900 | 04732460 |
| 717169 | Jun 3, 2011 | Jun 3, 2011 | Tecpetrol Operating LLC | Perez-Alaniz Deep GU #3 | 15,000 | 04732457 |
| 717302 | May 27, 2011 | May 27, 2011 | EOG Resources, Inc. | Kleberg, R J Jr TR Los Muertos #713 | 8,000 | 04732459 |
| 717291 | May 27, 2011 | May 27, 2011 | EOG Resources, Inc. | Kleberg, R J Jr TR Viboras Past #716 | 11,500 | 04732458 |
| 717291Amendment | May 27, 2011 | May 27, 2011 | EOG Resources, Inc. | Kleberg, R J Jr TR Viboras Past #716 | 11,500 | 04732458 |
| 716072 | May 13, 2011 | May 13, 2011 | Hilcorp Energy Company | Gloria Garcia Lopez #1B | 10,650 | 04732043 |
| 716048 | May 12, 2011 | May 12, 2011 | EOG Resources, Inc. | Church of the Brethren #13 | 12,300 | 04732456 |
| 715128 | May 2, 2011 | May 2, 2011 | EOG Resources, Inc. | Kleberg, R J Jr TR Viboras Past #722 | 9,300 | 04732455 |
| 714702 | Apr 29, 2011 | Apr 29, 2011 | Magnum Producing, LP | Cage Ranch #1 | 8,900 | 04732454 |
| 714702Amendment | Apr 29, 2011 | Apr 29, 2011 | Magnum Producing, LP | Cage Ranch #1 | 8,900 | 04732454 |
| 714837 | Apr 28, 2011 | Apr 28, 2011 | EOG Resources, Inc. | Kleberg, R J Jr TR Zach Past #723 | 10,500 | 04732453 |
| 714837Amendment | Apr 28, 2011 | Apr 28, 2011 | EOG Resources, Inc. | Kleberg, R J Jr TR Zach Past #723 | 10,500 | 04732453 |
| 714837Amendment | Apr 28, 2011 | Apr 28, 2011 | EOG Resources, Inc. | Kleberg, R J Jr TR Zach Past #723 | 10,500 | 04732453 |
| 713990 | Apr 14, 2011 | Apr 14, 2011 | Hilcorp Energy Company | Gloria Garcia Lopez #10 | 10,825 | 04732109 |
| 713208 | Apr 4, 2011 | Apr 4, 2011 | Tecpetrol Operating LLC | Sullivan Deep 'C' Gas Unit No. 1 #9 | 15,000 | 04732452 |
| 713192 | Apr 1, 2011 | Apr 1, 2011 | EOG Resources, Inc. | Kleberg, R J Jr TR Quiteria Past #720 | 11,000 | 04732451 |
| 713192Amendment | Apr 1, 2011 | Apr 1, 2011 | EOG Resources, Inc. | Kleberg, R J Jr TR Quiteria Past #720 | 11,000 | 04732451 |
| 711719 | Mar 10, 2011 | Mar 10, 2011 | Tecpetrol Operating LLC | Sullivan Deep "A" #7 | 15,000 | 04732450 |
| 709558 | Feb 11, 2011 | Feb 11, 2011 | Tecpetrol Operating LLC | Sullivan Deep #F 2 | 14,850 | 04732449 |
| 709558Amendment | Feb 11, 2011 | Feb 11, 2011 | Tecpetrol Operating LLC | Sullivan Deep #F 2 | 14,850 | 04732449 |
| 709080 | Jan 27, 2011 | Jan 27, 2011 | EOG Resources, Inc. | Kleberg, R J Jr TR Quiteria Past #707 | 10,500 | 04732448 |
| 708683 | Jan 20, 2011 | Jan 20, 2011 | Smith Production Inc. | Santa FE Ranch #21 | 14,420 | 04731984 |
| 707045 | Dec 17, 2010 | Dec 17, 2010 | EOG Resources, Inc. | Kleberg, R J Jr TR Quiteria Past #719 | 11,900 | 04732447 |
| 706880 | Dec 14, 2010 | Dec 14, 2010 | EOG Resources, Inc. | Kleberg, R J Jr TR Viboras Past #715 | 11,500 | 04732446 |
| 705872 | Dec 3, 2010 | Dec 3, 2010 | EOG Resources, Inc. | Kleberg, R J Jr TR Viboras Past #704 | 11,600 | 04732445 |
| 705328 | Nov 16, 2010 | Nov 16, 2010 | EOG Resources, Inc. | Viboras Field Gas Unit No. 1 #V712 | 10,400 | 04732444 |
| 703786 | Nov 16, 2010 | Nov 16, 2010 | Tecpetrol Operating LLC | Sullivan #20 | 11,596 | 04732439 |
| 704952 | Nov 10, 2010 | Nov 10, 2010 | Tecpetrol Operating LLC | Sullivan Deep "C" Gas Unit No. 1 #5 | 14,850 | 04732443 |
| 700981 | Nov 8, 2010 | Nov 8, 2010 | Exxon Mobil Corporation | Kelsey Unit #S 47MF | 7,493 | 04731994 |
| 704687 | Nov 3, 2010 | Nov 3, 2010 | Tecpetrol Operating LLC | Sullivan Deep #2 | 14,500 | 04732442 |
| 704687Amendment | Nov 3, 2010 | Nov 3, 2010 | Tecpetrol Operating LLC | Sullivan Deep #2 | 14,500 | 04732442 |
| 704134 | Oct 27, 2010 | Oct 27, 2010 | EOG Resources, Inc. | Kleberg, R J Jr TR Viboras Past #701 | 12,500 | 04732441 |
| 704133 | Oct 26, 2010 | Oct 26, 2010 | EOG Resources, Inc. | Kleberg, R J Jr TR Zach Past St #701 | 13,200 | 04732440 |
| 704127 | Oct 26, 2010 | Oct 26, 2010 | Tecpetrol Operating LLC | Sullivan Deep "F" #1 | 14,850 | 04732261 |
| 704127Amendment | Oct 26, 2010 | Oct 26, 2010 | Tecpetrol Operating LLC | Sullivan Deep #F 1 | 14,850 | 04732261 |
| 703401 | Oct 15, 2010 | Oct 15, 2010 | Exxon Mobil Corporation | Santa FE Ranch #119 | 16,500 | 04732096 |
| 703090 | Oct 5, 2010 | Oct 5, 2010 | EOG Resources, Inc. | Kleberg, R J Jr TR Quiteria Past #706 | 10,500 | 04732438 |
| 702510 | Sep 24, 2010 | Sep 24, 2010 | EOG Resources, Inc. | Kleberg, R J Jr TR Quiteria Past #705 | 12,300 | 04732437 |
| 702507 | Sep 23, 2010 | Sep 23, 2010 | EOG Resources, Inc. | Kleberg, R J Jr TR Quiteria Past #703 | 14,500 | 04732436 |
| 701492 | Sep 1, 2010 | Sep 1, 2010 | Denali Oil & Gas Management, LLC | Cage Ranch 656 #1 | 10,000 | 04732412 |
| 701287 | Aug 27, 2010 | Aug 27, 2010 | Tecpetrol Operating LLC | Perez-Alaniz Deep GU #4 | 14,000 | 04732435 |
| 701286 | Aug 27, 2010 | Aug 27, 2010 | Tecpetrol Operating LLC | Perez-Alaniz Deep GU #A 2 | 14,000 | 04732434 |
| 700973 | Aug 23, 2010 | Aug 23, 2010 | EOG Resources, Inc. | Kleberg, R J Jr TR Viboras Pastu #703 | 12,500 | 04732433 |
| 700973Amendment | Aug 23, 2010 | Aug 23, 2010 | EOG Resources, Inc. | Kleberg, R J Jr TR Viboras Pastu #703 | 12,500 | 04732433 |
| 700973Amendment | Aug 23, 2010 | Aug 23, 2010 | EOG Resources, Inc. | Kleberg, R J Jr TR Viboras Past #703 | 12,500 | 04732433 |
| 699552 | Jul 27, 2010 | Jul 27, 2010 | EOG Resources, Inc. | Kleberg, R J Jr TR Viboras Past #702 | 11,400 | 04732432 |
| 699366 | Jul 22, 2010 | Jul 22, 2010 | Dewbre Petroleum Corporation | Cage Trust #1 | 9,000 | 04732431 |
| 699116 | Jul 20, 2010 | Jul 20, 2010 | Pogo Producing Company LLC | Lopez, H. #8 | 12,500 | 04732430 |
| 698910 | Jul 15, 2010 | Jul 15, 2010 | EOG Resources, Inc. | Kleberg, R J Jr TR Los Muertos #702 | 13,900 | 04732429 |
| 698910Amendment | Jul 15, 2010 | Jul 15, 2010 | EOG Resources, Inc. | Kleberg, R J Jr TR Los Muertos #702 | 13,900 | 04732429 |
| 698509 | Jul 5, 2010 | Jul 5, 2010 | EOG Resources, Inc. | Kleberg, R J Jr TR Los Muertos #701 | 12,500 | 04732428 |
| 698509Amendment | Jul 5, 2010 | Jul 5, 2010 | EOG Resources, Inc. | Kleberg, R J Jr TR Los Muertos #701 | 12,500 | 04732428 |
| 697862 | Jun 23, 2010 | Jun 23, 2010 | Mestena Operating, L.L.C. | Mestena Oil and Gas Co. 1 #50 | 1,500 | 04701441 |
| 697542 | Jun 17, 2010 | Jun 17, 2010 | Welder Exploration & Prod., Inc. | Brooks Heirs #2 | 11,000 | 04732427 |
| 697542Amendment | Jun 17, 2010 | Jun 17, 2010 | Welder Exploration & Prod., Inc. | Brooks Heirs #2 | 11,000 | 04732427 |
| 697531 | Jun 16, 2010 | Jun 16, 2010 | Crimson Exploration Oper., Inc. | Rupp #5 | 11,400 | 04732052 |
| 697248 | Jun 14, 2010 | Jun 14, 2010 | Mestena Operating, L.L.C. | Wall Trap #1 | 1,500 | 04732426 |
| 696661 | Jun 1, 2010 | Jun 1, 2010 | Coronado Energy E&P Company, LLC | McGill Bros. #643 | 13,400 | 04732425 |
| 696185 | May 19, 2010 | May 19, 2010 | EOG Resources, Inc. | Viboras Field Gas Unit No. 1 #Q702 | 10,400 | 04732424 |
| 695869 | May 14, 2010 | May 14, 2010 | EOG Resources, Inc. | Viboras Field Gas Unit No. 1 #Q701 | 11,100 | 04732423 |
| 695869Amendment | May 14, 2010 | May 14, 2010 | EOG Resources, Inc. | Viboras Field Gas Unit No. 1 #Q701 | 11,100 | 04732423 |
| 695544 | May 7, 2010 | May 7, 2010 | Ballard Exploration Company,inc. | Mora #1 | 8,100 | 04732422 |
| 694173 | Apr 12, 2010 | Apr 12, 2010 | Newfield Exploration Company | La Rucia Ranch #30 | 17,500 | 04732320 |
| 692589 | Apr 6, 2010 | Apr 6, 2010 | Brigham Oil & Gas, L.P. | Sullivan, D.J. State #17 | 14,000 | 04732419 |
| 693875 | Apr 5, 2010 | Apr 5, 2010 | Pogo Producing Company LLC | Lopez, H. #7 | 12,000 | 04732421 |
| 693808 | Apr 2, 2010 | Apr 2, 2010 | EOG Resources, Inc. | Church of the Brethren #11 | 10,500 | 04732420 |
| 693646 | Apr 2, 2010 | Apr 2, 2010 | Mestena Operating, L.L.C. | La Presa #11 | 7,950 | 04732327 |
| 692650 | Mar 17, 2010 | Mar 17, 2010 | Wynn-Crosby Operating, Ltd. | Lopez #7 | 11,820 | 04732130 |
| 692325 | Mar 11, 2010 | Mar 11, 2010 | Mestena Operating, L.L.C. | Garcia 3 #1A | 6,500 | 04731568 |