| 720903 | Jul 26, 2011 | Jul 26, 2011 | Three Rivers Operating Co LLC | Irion | Sugg 3071 #3 | 6,810 | 23534117 |
| 720893 | Jul 26, 2011 | Jul 26, 2011 | Three Rivers Operating Co LLC | Irion | Sugg 3072 #6 | 6,950 | 23534442 |
| 720880 | Jul 26, 2011 | Jul 26, 2011 | Three Rivers Operating Co LLC | Irion | Sugg 3 NW #3 | 6,915 | 23534309 |
| 720871 | Jul 26, 2011 | Jul 26, 2011 | Three Rivers Operating Co LLC | Irion | Sugg 55 #1 | 7,575 | 23534049 |
| 719385 | Jul 13, 2011 | Jul 13, 2011 | Three Rivers Operating Co LLC | Irion | Sugg AA 1895 #2 | 7,278 | 23532611 |
| 719398 | Jul 5, 2011 | Jul 5, 2011 | Three Rivers Operating Co LLC | Irion | Sugg AA 26 #2 | 7,710 | 23532643 |
| 719395 | Jul 5, 2011 | Jul 5, 2011 | Three Rivers Operating Co LLC | Irion | Sugg AA 26 #1 | 7,750 | 23532561 |
| 718482 | Jul 5, 2011 | Jul 5, 2011 | Three Rivers Operating Co LLC | Irion | Sugg AA 1895 #1 | 7,250 | 23532670 |
| 719382 | Jul 1, 2011 | Jul 1, 2011 | Three Rivers Operating Co LLC | Irion | Sugg AA 5 #1 | 7,650 | 23532557 |
| 719313 | Jul 1, 2011 | Jul 1, 2011 | Three Rivers Operating Co LLC | Irion | Sugg 3059 #6 | 6,830 | 23534125 |
| 716911 | Jun 29, 2011 | Jun 29, 2011 | Three Rivers Operating Co LLC | Andrews | Armstrong, Elizabeth #9 | 9,000 | 00342979 |
| 716911Amendment | Jun 29, 2011 | Jun 29, 2011 | Three Rivers Operating Co LLC | Andrews | Armstrong, Elizabeth #9 | 9,000 | 00342979 |
| 718805 | Jun 27, 2011 | Jun 27, 2011 | Three Rivers Operating Co LLC | Irion | Mayse 3068 #8 | 7,000 | 23534767 |
| 718426 | Jun 27, 2011 | Jun 27, 2011 | Three Rivers Operating Co LLC | Irion | Mayse 3068 #4 | 6,940 | 23534303 |
| 718740 | Jun 24, 2011 | Jun 24, 2011 | Three Rivers Operating Co LLC | Irion | Sugg 1897 #7 | 6,900 | 23534765 |
| 718673 | Jun 24, 2011 | Jun 24, 2011 | Three Rivers Operating Co LLC | Irion | Sugg 6 #11 | 7,200 | 23534763 |
| 718670 | Jun 24, 2011 | Jun 24, 2011 | Three Rivers Operating Co LLC | Irion | Sugg 6 #4 | 7,200 | 23534764 |
| 716913 | Jun 24, 2011 | Jun 24, 2011 | Three Rivers Operating Co LLC | Andrews | Armstrong, Elizabeth #10 | 9,000 | 00342980 |
| 716913Amendment | Jun 24, 2011 | Jun 24, 2011 | Three Rivers Operating Co LLC | Andrews | Armstrong, Elizabeth #10 | 9,000 | 00342980 |
| 718802 | Jun 22, 2011 | Jun 22, 2011 | Three Rivers Operating Co LLC | Irion | Mayse 3068 #15 | 7,000 | 23534766 |
| 717671 | Jun 21, 2011 | Jun 21, 2011 | Three Rivers Operating Co LLC | Irion | Sugg 3060 #3 | 7,515 | 23534124 |
| 717674 | Jun 20, 2011 | Jun 20, 2011 | Three Rivers Operating Co LLC | Irion | Sugg 5 #4 | 7,222 | 23534443 |
| 716918 | Jun 17, 2011 | Jun 17, 2011 | Three Rivers Operating Co LLC | Andrews | Armstrong, Elizabeth #11 | 9,000 | 00342983 |
| 716918Amendment | Jun 17, 2011 | Jun 17, 2011 | Three Rivers Operating Co LLC | Andrews | Armstrong, Elizabeth #11 | 9,000 | 00342983 |
| 718234 | Jun 15, 2011 | Jun 15, 2011 | Three Rivers Operating Co LLC | Irion | Sugg 3060 #4 | 7,000 | 23534755 |
| 717673 | Jun 8, 2011 | Jun 8, 2011 | Three Rivers Operating Co LLC | Irion | Sugg 3073 #6 | 7,031 | 23534452 |
| 717669 | Jun 8, 2011 | Jun 8, 2011 | Three Rivers Operating Co LLC | Irion | Sugg 3073 #1 | 7,220 | 23534444 |
| 717672 | Jun 6, 2011 | Jun 6, 2011 | Three Rivers Operating Co LLC | Irion | Sugg 1897 #4 | 6,940 | 23534306 |
| 717091 | May 25, 2011 | May 25, 2011 | Three Rivers Operating Co LLC | Irion | Sugg 14 #4 | 7,000 | 23534745 |
| 717089 | May 25, 2011 | May 25, 2011 | Three Rivers Operating Co LLC | Irion | Sugg 1 #2 | 7,000 | 23534744 |
| 716598 | May 19, 2011 | May 19, 2011 | Three Rivers Operating Co LLC | Irion | Sugg 29 NE #4 | 7,410 | 23534338 |
| 714134 | Apr 20, 2011 | Apr 20, 2011 | Three Rivers Operating Co LLC | Irion | Sugg 30 #2 | 7,060 | 23534389 |
| 714132 | Apr 15, 2011 | Apr 15, 2011 | Three Rivers Operating Co LLC | Irion | Sugg 29 #3 | 7,520 | 23534144 |
| 714130 | Apr 15, 2011 | Apr 15, 2011 | Three Rivers Operating Co LLC | Irion | Sugg 3060 #2 | 7,325 | 23534055 |
| 714129 | Apr 15, 2011 | Apr 15, 2011 | Three Rivers Operating Co LLC | Irion | Sugg 14 #2 | 6,830 | 23534139 |
| 713473 | Apr 13, 2011 | Apr 13, 2011 | Three Rivers Operating Co LLC | Irion | Sugg 30 #1 | 7,340 | 23534054 |
| 713375 | Apr 13, 2011 | Apr 13, 2011 | Three Rivers Operating Co LLC | Irion | Sugg AA 1894 " A" #2 | 6,570 | 23533846 |
| 713373 | Apr 13, 2011 | Apr 13, 2011 | Three Rivers Operating Co LLC | Irion | Sugg AA 3059 #4 | 6,644 | 23533856 |
| 713265 | Apr 13, 2011 | Apr 13, 2011 | Three Rivers Operating Co LLC | Irion | Halcomb 34 #1 | 7,300 | 23534703 |
| 713265Amendment | Apr 13, 2011 | Apr 13, 2011 | Three Rivers Operating Co LLC | Irion | Halcomb 34 #1 | 7,300 | 23534703 |
| 713745 | Apr 11, 2011 | Apr 11, 2011 | Three Rivers Operating Co LLC | Irion | Sugg AA 1895 #8 | 9,000 | 23534699 |
| 713745Amendment | Apr 11, 2011 | Apr 11, 2011 | Three Rivers Operating Co LLC | Irion | Sugg AA 1895 #8 | 9,000 | 23534699 |
| 713546 | Apr 8, 2011 | Apr 8, 2011 | Three Rivers Operating Co LLC | Irion | Sugg 15 #4 | 6,820 | 23534133 |
| 713546Amendment | Apr 8, 2011 | Apr 8, 2011 | Three Rivers Operating Co LLC | Irion | Sugg 15 #4 | 6,820 | 23534133 |
| 713438 | Apr 8, 2011 | Apr 8, 2011 | Three Rivers Operating Co LLC | Irion | Sugg 1897 #5 | 9,000 | 23534413 |
| 713471 | Apr 7, 2011 | Apr 7, 2011 | Three Rivers Operating Co LLC | Irion | Sugg 14 #1 | 7,320 | 23534052 |
| 713437 | Apr 7, 2011 | Apr 7, 2011 | Three Rivers Operating Co LLC | Irion | Sugg 3060 NW #2 | 9,000 | 23534308 |
| 713436 | Apr 7, 2011 | Apr 7, 2011 | Three Rivers Operating Co LLC | Irion | Farmar 44 #5 | 9,000 | 23534145 |
| 713435 | Apr 7, 2011 | Apr 7, 2011 | Three Rivers Operating Co LLC | Irion | Sugg 55 #2 | 9,000 | 23534112 |
| 713433 | Apr 7, 2011 | Apr 7, 2011 | Three Rivers Operating Co LLC | Irion | Sugg, A. A. 7 #2 | 7,700 | 23533419 |
| 713371 | Apr 6, 2011 | Apr 6, 2011 | Three Rivers Operating Co LLC | Irion | Sugg AA 1895 #5 | 7,500 | 23533437 |
| 713370 | Apr 6, 2011 | Apr 6, 2011 | Three Rivers Operating Co LLC | Irion | Sugg AA 1895 #4 | 7,500 | 23533296 |
| 712257 | Mar 22, 2011 | Mar 22, 2011 | Three Rivers Operating Co LLC | Irion | Sugg AA 1895 #7 | 6,708 | 23533858 |
| 712247 | Mar 21, 2011 | Mar 21, 2011 | Three Rivers Operating Co LLC | Irion | Sugg 1 #4 | 6,714 | 23534394 |
| 712239 | Mar 21, 2011 | Mar 21, 2011 | Three Rivers Operating Co LLC | Irion | Sugg 1 #3 | 6,740 | 23534349 |
| 712238 | Mar 21, 2011 | Mar 21, 2011 | Three Rivers Operating Co LLC | Irion | Sugg 1 #1 | 7,315 | 23534070 |
| 712162 | Mar 18, 2011 | Mar 18, 2011 | Three Rivers Operating Co LLC | Irion | Sugg 3067 #6 | 7,000 | 23534688 |
| 711824 | Mar 14, 2011 | Mar 14, 2011 | Three Rivers Operating Co LLC | Irion | Sugg 3070 #10 | 7,100 | 23534680 |
| 711824Amendment | Mar 14, 2011 | Mar 14, 2011 | Three Rivers Operating Co LLC | Irion | Sugg 3070 #10 | 7,100 | 23534680 |
| 711816 | Mar 11, 2011 | Mar 11, 2011 | Three Rivers Operating Co LLC | Irion | Mayse 3068 #7 | 7,000 | 23534681 |
| 711816Amendment | Mar 11, 2011 | Mar 11, 2011 | Three Rivers Operating Co LLC | Irion | Mayse 3068 #7 | 7,000 | 23534681 |
| 710647 | Feb 25, 2011 | Feb 25, 2011 | Three Rivers Operating Co LLC | Irion | Mayse 26 #2 | 7,750 | 23534673 |
| 710647Amendment | Feb 25, 2011 | Feb 25, 2011 | Three Rivers Operating Co LLC | Irion | Mayse 26 #2 | 7,750 | 23534673 |
| 710438 | Feb 18, 2011 | Feb 18, 2011 | Three Rivers Operating Co LLC | Irion | Sugg 6 #3 | 8,000 | 23534669 |
| 710438Amendment | Feb 18, 2011 | Feb 18, 2011 | Three Rivers Operating Co LLC | Irion | Sugg 6 #3 | 8,000 | 23534669 |
| 710438Amendment | Feb 18, 2011 | Feb 18, 2011 | Three Rivers Operating Co LLC | Irion | Sugg 6 #3 | 8,000 | 23534669 |
| 709720 | Feb 8, 2011 | Feb 8, 2011 | Three Rivers Operating Co LLC | Irion | Sugg 3069 #7 | 8,000 | 23534665 |
| 709720Amendment | Feb 8, 2011 | Feb 8, 2011 | Three Rivers Operating Co LLC | Irion | Sugg 3069 #7 | 8,000 | 23534665 |
| 709693 | Feb 7, 2011 | Feb 7, 2011 | Three Rivers Operating Co LLC | Irion | Sugg 6 #5 | 8,000 | 23534664 |
| 709693Amendment | Feb 7, 2011 | Feb 7, 2011 | Three Rivers Operating Co LLC | Irion | Sugg 6 #5 | 8,000 | 23534664 |
| 709643 | Feb 4, 2011 | Feb 4, 2011 | Three Rivers Operating Co LLC | Irion | Sugg 6 #2 | 8,000 | 23534663 |
| 709643Amendment | Feb 4, 2011 | Feb 4, 2011 | Three Rivers Operating Co LLC | Irion | Sugg 6 #2 | 8,000 | 23534663 |
| 709554 | Feb 3, 2011 | Feb 3, 2011 | Three Rivers Operating Co LLC | Irion | Farmar 2 #6 | 8,000 | 23534662 |
| 709554Amendment | Feb 3, 2011 | Feb 3, 2011 | Three Rivers Operating Co LLC | Irion | Farmar 2 #6 | 8,000 | 23534662 |
| 707154Amendment | Dec 17, 2010 | Dec 17, 2010 | Three Rivers Operating Co LLC | Irion | Sugg 30 SE #6 | 9,000 | 23534627 |
| 707146Amendment | Dec 17, 2010 | Dec 17, 2010 | Three Rivers Operating Co LLC | Irion | Sugg 29 W #7 | 9,000 | 23534626 |
| 705195Amendment | Nov 15, 2010 | Nov 15, 2010 | Three Rivers Operating Co LLC | Schleicher | Caroe 8 #2 | 9,000 | 41332708 |
| 703127 | Oct 5, 2010 | Oct 5, 2010 | Three Rivers Operating Co LLC | Gaines | Exxon-Shell Fee #5 | 5,000 | 16537236 |
| 702371 | Sep 20, 2010 | Sep 20, 2010 | Three Rivers Operating Co LLC | Gaines | Doss, M. S. #8 | 5,000 | 16537230 |
| 702181Amendment | Sep 20, 2010 | Sep 20, 2010 | Three Rivers Operating Co LLC | Irion | Sugg-Farmar 2 #9 | 9,000 | 23534582 |
| 702235 | Sep 17, 2010 | Sep 17, 2010 | Three Rivers Operating Co LLC | Gaines | Doss, M. S. #7 | 5,000 | 16537229 |
| 702201Amendment | Sep 15, 2010 | Sep 15, 2010 | Three Rivers Operating Co LLC | Irion | Sugg-Farmar 2 #11 | 9,000 | 23534584 |
| 702190Amendment | Sep 15, 2010 | Sep 15, 2010 | Three Rivers Operating Co LLC | Irion | Sugg-Farmar 2 #10 | 9,000 | 23534583 |
| 702169Amendment | Sep 15, 2010 | Sep 15, 2010 | Three Rivers Operating Co LLC | Irion | Sugg 6 #1 | 9,000 | 23534581 |
| 702091 | Sep 14, 2010 | Sep 14, 2010 | Three Rivers Operating Co LLC | Gaines | Doss, M. S. #6 | 5,000 | 16537228 |
| 701857 | Sep 13, 2010 | Sep 13, 2010 | Three Rivers Operating Co LLC | Gaines | Exxon-Shell Fee #4 | 5,000 | 16537227 |
| 701619Amendment | Sep 7, 2010 | Sep 7, 2010 | Three Rivers Operating Co LLC | Irion | Sugg-Farmar 2 #8 | 9,000 | 23534577 |
| 701612Amendment | Sep 3, 2010 | Sep 3, 2010 | Three Rivers Operating Co LLC | Irion | Sugg-Farmar 2 #7 | 9,000 | 23534576 |
| 701483Amendment | Sep 1, 2010 | Sep 1, 2010 | Three Rivers Operating Co LLC | Irion | Sugg 3069 #3 | 9,000 | 23534574 |
| 701475Amendment | Aug 31, 2010 | Aug 31, 2010 | Three Rivers Operating Co LLC | Irion | Sugg 3069 #2 | 9,000 | 23534573 |
| 700848 | Aug 19, 2010 | Aug 19, 2010 | Three Rivers Operating Co LLC | Crockett | Amacker Trust 37 #2 | 5,700 | 10511015 |
| 700848Amendment | Aug 19, 2010 | Aug 19, 2010 | Three Rivers Operating Co LLC | Crockett | Amacker Trust 37 #2 | 5,700 | 10511015 |
| 697788Amendment | Jun 18, 2010 | Jun 18, 2010 | Three Rivers Operating Co LLC | Irion | Lange 4 #2 | 9,000 | 23534541 |
| 697090Amendment | Jun 7, 2010 | Jun 7, 2010 | Three Rivers Operating Co LLC | Irion | Sugg 3072 #9 | 9,000 | 23534535 |
| 697089Amendment | Jun 7, 2010 | Jun 7, 2010 | Three Rivers Operating Co LLC | Irion | Sugg 3072 #8 | 9,000 | 23534537 |