| 649920 | Nov 28, 2007 | Nov 28, 2007 | Rosetta Resources Operating LP | Webb | South Callaghan Ranch #285 | 7,750 | 47940015 |
| 648085 | Nov 21, 2007 | Nov 21, 2007 | Rosetta Resources Operating LP | Webb | South Callaghan Ranch #280 | 9,150 | 47939964 |
| 649493 | Nov 16, 2007 | Nov 16, 2007 | Rosetta Resources Operating LP | Webb | F.J. Gill #29 | 10,700 | 47939998 |
| 649484 | Nov 16, 2007 | Nov 16, 2007 | Rosetta Resources Operating LP | Webb | F.J. Gill #26 | 10,700 | 47939997 |
| 649458 | Nov 16, 2007 | Nov 16, 2007 | Rosetta Resources Operating LP | Webb | F.J. Gill #24 | 10,700 | 47939994 |
| 649451 | Nov 16, 2007 | Nov 16, 2007 | Rosetta Resources Operating LP | Webb | F.J. Gill #23 | 10,700 | 47939993 |
| 649450 | Nov 16, 2007 | Nov 16, 2007 | Rosetta Resources Operating LP | Webb | Gill, F. J. #22 | 10,700 | 47939992 |
| 649450Amendment | Nov 16, 2007 | Nov 16, 2007 | Rosetta Resources Operating LP | Webb | Gill, F. J. #22 | 10,700 | 47939992 |
| 649444 | Nov 16, 2007 | Nov 16, 2007 | Rosetta Resources Operating LP | Webb | Gill, F. J. #21 | 10,700 | 47939996 |
| 649444Amendment | Nov 16, 2007 | Nov 16, 2007 | Rosetta Resources Operating LP | Webb | Gill, F. J. #21 | 11,300 | 47939996 |
| 649075 | Nov 12, 2007 | Nov 12, 2007 | Rosetta Resources Operating LP | Webb | South Callaghan Ranch #283 | 9,000 | 47939979 |
| 648334 | Oct 30, 2007 | Oct 30, 2007 | Rosetta Resources Operating LP | Webb | El Corazon Ranch #14 | 8,008 | 47939788 |
| 648221 | Oct 26, 2007 | Oct 26, 2007 | Rosetta Resources Operating LP | Webb | South Callaghan Ranch #281 | 10,030 | 47939968 |
| 648028 | Oct 25, 2007 | Oct 25, 2007 | Rosetta Resources Operating LP | Webb | Barnes Estate #6 | 8,180 | 47939965 |
| 647505 | Oct 16, 2007 | Oct 16, 2007 | Rosetta Resources Operating LP | Webb | South Callaghan Ranch #279 | 8,500 | 47939956 |
| 646347 | Sep 24, 2007 | Sep 24, 2007 | Rosetta Resources Operating LP | Webb | South Callaghan Ranch #278 | 9,900 | 47939943 |
| 646347Amendment | Sep 24, 2007 | Sep 24, 2007 | Rosetta Resources Operating LP | Webb | South Callaghan Ranch #278 | 9,900 | 47939943 |
| 646189 | Sep 20, 2007 | Sep 20, 2007 | Rosetta Resources Operating LP | Webb | South Callaghan Ranch #264 | 9,428 | 47939854 |
| 646120 | Sep 19, 2007 | Sep 19, 2007 | Rosetta Resources Operating LP | Webb | South Callaghan Ranch #277 | 7,100 | 47939940 |
| 645469 | Sep 5, 2007 | Sep 5, 2007 | Rosetta Resources Operating LP | Webb | South Callaghan Ranch #276 | 8,400 | 47939928 |
| 644558 | Aug 29, 2007 | Aug 29, 2007 | Rosetta Resources Operating LP | Webb | South Callaghan Ranch #275 | 8,950 | 47939914 |
| 643846 | Aug 8, 2007 | Aug 8, 2007 | Rosetta Resources Operating LP | Webb | South Callaghan Ranch #274 | 9,500 | 47939905 |
| 643607 | Aug 8, 2007 | Aug 8, 2007 | Rosetta Resources Operating LP | Webb | South Callaghan Ranch #226 | 8,677 | 47938617 |
| 643536 | Aug 7, 2007 | Aug 7, 2007 | Rosetta Resources Operating LP | Webb | South Callaghan Ranch #273 | 8,400 | 47939904 |
| 643498 | Aug 7, 2007 | Aug 7, 2007 | Rosetta Resources Operating LP | Webb | South Callaghan Ranch #255 | 9,070 | 47939751 |
| 643110 | Aug 2, 2007 | Aug 2, 2007 | Rosetta Resources Operating LP | Webb | South Callaghan Ranch #263 | 9,040 | 47939804 |
| 643080 | Aug 2, 2007 | Aug 2, 2007 | Rosetta Resources Operating LP | Webb | Barnes #5 | 8,600 | 47939901 |
| 643024 | Aug 1, 2007 | Aug 1, 2007 | Rosetta Resources Operating LP | Webb | A. Barnes #1 | 8,600 | 47939900 |
| 642838 | Jul 31, 2007 | Jul 31, 2007 | Rosetta Resources Operating LP | Colorado | Holstein Gas Unit #1 | 4,799 | 08932480 |
| 642469 | Jul 26, 2007 | Jul 26, 2007 | Rosetta Resources Operating LP | Colorado | Cranek Gas Unit #1 | 7,110 | 08932481 |
| 641832 | Jul 16, 2007 | Jul 16, 2007 | Rosetta Resources Operating LP | Webb | South Callaghan Ranch #272 | 9,000 | 47939885 |
| 641832Amendment | Jul 16, 2007 | Jul 16, 2007 | Rosetta Resources Operating LP | Webb | South Callaghan Ranch #272 | 8,473 | 47939885 |
| 641832Amendment | Jul 16, 2007 | Jul 16, 2007 | Rosetta Resources Operating LP | Webb | South Callaghan Ranch #272 | 8,500 | 47939885 |
| 641663 | Jul 12, 2007 | Jul 12, 2007 | Rosetta Resources Operating LP | Webb | South Callaghan Ranch #271 | 8,900 | 47939881 |
| 640913 | Jun 28, 2007 | Jun 28, 2007 | Rosetta Resources Operating LP | Webb | South Callaghan Ranch #269 | 9,350 | 47939868 |
| 640346 | Jun 15, 2007 | Jun 15, 2007 | Rosetta Resources Operating LP | Webb | South Callaghan Ranch #270 | 8,500 | 47939864 |
| 639499 | May 25, 2007 | May 25, 2007 | Rosetta Resources Operating LP | Webb | South Callaghan Ranch #267 | 9,900 | 47939855 |
| 639494 | May 25, 2007 | May 25, 2007 | Rosetta Resources Operating LP | Webb | South Callaghan Ranch #264 | 10,000 | 47939854 |
| 639280 | May 23, 2007 | May 23, 2007 | Rosetta Resources Operating LP | Webb | South Callaghan Ranch #268 | 9,000 | 47939849 |
| 638135 | May 9, 2007 | May 9, 2007 | Rosetta Resources Operating LP | Jefferson | State Tract 16 Unit #1 | 14,000 | 24532500 |
| 638027 | May 7, 2007 | May 7, 2007 | Rosetta Resources Operating LP | Webb | El Corazon Ranch #9 | 8,600 | 47939826 |
| 637929 | May 4, 2007 | May 4, 2007 | Rosetta Resources Operating LP | Webb | South Callaghan Ranch #266 | 7,900 | 47939825 |
| 637838 | May 3, 2007 | May 3, 2007 | Rosetta Resources Operating LP | Webb | South Callaghan Ranch #265 | 8,300 | 47939821 |
| 637517 | Apr 30, 2007 | Apr 30, 2007 | Rosetta Resources Operating LP | Webb | South Callaghan Ranch #245 | 8,830 | 47939684 |
| 636685 | Apr 14, 2007 | Apr 14, 2007 | Rosetta Resources Operating LP | Webb | South Callaghan Ranch #20 | 7,150 | 47935027 |
| 636306 | Apr 6, 2007 | Apr 6, 2007 | Rosetta Resources Operating LP | Webb | South Callaghan Ranch #263 | 9,500 | 47939804 |
| 635600 | Mar 27, 2007 | Mar 27, 2007 | Rosetta Resources Operating LP | Webb | South Callaghan Ranch #262 | 7,400 | 47939795 |
| 635600Amendment | Mar 27, 2007 | Mar 27, 2007 | Rosetta Resources Operating LP | Webb | South Callaghan Ranch #262 | 6,700 | 47939795 |
| 635583 | Mar 27, 2007 | Mar 27, 2007 | Rosetta Resources Operating LP | Webb | South Callaghan Ranch #261 | 9,500 | 47939794 |
| 634928 | Mar 15, 2007 | Mar 15, 2007 | Rosetta Resources Operating LP | Webb | El Corazon Ranch #14 | 8,500 | 47939788 |
| 634899 | Mar 15, 2007 | Mar 15, 2007 | Rosetta Resources Operating LP | Webb | South Callaghan Ranch #260 | 9,400 | 47939787 |
| 634668 | Mar 12, 2007 | Mar 12, 2007 | Rosetta Resources Operating LP | Webb | South Callaghan Ranch #259 | 8,000 | 47939784 |
| 633721 | Feb 22, 2007 | Feb 22, 2007 | Rosetta Resources Operating LP | Webb | South Callaghan Ranch #249 | 8,600 | 47939680 |
| 633708 | Feb 22, 2007 | Feb 22, 2007 | Rosetta Resources Operating LP | Webb | South Callaghan Ranch #246 | 8,600 | 47939679 |
| 633639 | Feb 20, 2007 | Feb 20, 2007 | Rosetta Resources Operating LP | Jefferson | State Tract 30 Unit #02 | 16,500 | 24532493 |
| 633639Amendment | Feb 20, 2007 | Feb 20, 2007 | Rosetta Resources Operating LP | Jefferson | State Tract 30 Unit #02 | 14,000 | 24532493 |
| 633594 | Feb 16, 2007 | Feb 16, 2007 | Rosetta Resources Operating LP | Webb | El Corazon Ranch #12 | 8,500 | 47939775 |
| 633573 | Feb 16, 2007 | Feb 16, 2007 | Rosetta Resources Operating LP | Webb | El Corazon Ranch #5 | 8,590 | 47939774 |
| 633573Amendment | Feb 16, 2007 | Feb 16, 2007 | Rosetta Resources Operating LP | Webb | El Corazon Ranch #5 | 8,700 | 47939774 |
| 633505 | Feb 15, 2007 | Feb 15, 2007 | Rosetta Resources Operating LP | Webb | South Callaghan Ranch #258 | 9,000 | 47939771 |
| 632969 | Feb 7, 2007 | Feb 7, 2007 | Rosetta Resources Operating LP | Colorado | Holstein Gas Unit #1 | 4,799 | 08932480 |
| 632428 | Jan 26, 2007 | Jan 26, 2007 | Rosetta Resources Operating LP | Webb | South Callaghan Ranch #256 | 8,500 | 47939752 |
| 632093 | Jan 26, 2007 | Jan 26, 2007 | Rosetta Resources Operating LP | Sherman | Craig Ranch #1 | 7,500 | 42131034 |
| 632357 | Jan 25, 2007 | Jan 25, 2007 | Rosetta Resources Operating LP | Webb | South Callaghan Ranch #255 | 9,800 | 47939751 |
| 632352 | Jan 25, 2007 | Jan 25, 2007 | Rosetta Resources Operating LP | Webb | South Callaghan Ranch #257 | 9,000 | 47939750 |
| 632025 | Jan 24, 2007 | Jan 24, 2007 | Rosetta Resources Operating LP | Sherman | Price Ranch #1 | 7,000 | 42131033 |
| 631926 | Jan 18, 2007 | Jan 18, 2007 | Rosetta Resources Operating LP | Webb | South Callaghan Ranch #251 | 8,500 | 47939743 |
| 631797 | Jan 12, 2007 | Jan 12, 2007 | Rosetta Resources Operating LP | Jefferson | State Tract 30 #01 | 14,000 | 24532485 |
| 631797Amendment | Jan 12, 2007 | Jan 12, 2007 | Rosetta Resources Operating LP | Jefferson | State Tract 30 #01 | 14,000 | 24532485 |
| 630932 | Dec 21, 2006 | Dec 21, 2006 | Rosetta Resources Operating LP | Webb | South Callaghan Ranch #254 | 9,100 | 47939732 |
| 630932Amendment | Dec 21, 2006 | Dec 21, 2006 | Rosetta Resources Operating LP | Webb | South Callaghan Ranch #254 | 9,100 | 47939732 |
| 630113 | Dec 13, 2006 | Dec 13, 2006 | Rosetta Resources Operating LP | Webb | South Callaghan Ranch Unit #248 | 8,900 | 47939721 |
| 630076 | Dec 13, 2006 | Dec 13, 2006 | Rosetta Resources Operating LP | Webb | G.B.G.L. & C. Co. Ltd Unit #14 | 8,400 | 47939720 |
| 629415 | Dec 12, 2006 | Dec 12, 2006 | Rosetta Resources Operating LP | Chambers | State Tract 100 Unit #2 | 11,000 | 07132305 |
| 630052 | Dec 6, 2006 | Dec 6, 2006 | Rosetta Resources Operating LP | Webb | South Callaghan Ranch Unit #247 | 8,670 | 47939715 |
| 628736 | Nov 9, 2006 | Nov 9, 2006 | Rosetta Resources Operating LP | Webb | South Callaghan Ranch #252 | 8,800 | 47939693 |
| 628546 | Nov 6, 2006 | Nov 6, 2006 | Rosetta Resources Operating LP | Webb | G.B.G.L. & C. Co. Ltd #15 | 8,500 | 47939691 |
| 627739 | Oct 19, 2006 | Oct 19, 2006 | Rosetta Resources Operating LP | Webb | South Callaghan Ranch #245 | 9,500 | 47939684 |
| 627652 | Oct 17, 2006 | Oct 17, 2006 | Rosetta Resources Operating LP | Webb | South Callaghan Ranch #250 | 8,000 | 47939682 |
| 627503 | Oct 16, 2006 | Oct 16, 2006 | Rosetta Resources Operating LP | Webb | South Callaghan Ranch #249 | 9,200 | 47939680 |
| 627423 | Oct 12, 2006 | Oct 12, 2006 | Rosetta Resources Operating LP | Webb | South Callaghan Ranch #246 | 9,400 | 47939679 |
| 626706 | Sep 28, 2006 | Sep 28, 2006 | Rosetta Resources Operating LP | Webb | El Corazon Ranch #7 | 8,500 | 47939668 |
| 626506 | Sep 26, 2006 | Sep 26, 2006 | Rosetta Resources Operating LP | Webb | SCR Cactus & Brush #1 | 8,700 | 47939664 |
| 626168 | Sep 19, 2006 | Sep 19, 2006 | Rosetta Resources Operating LP | Webb | South Callaghan Ranch #243 | 8,800 | 47939654 |
| 623964 | Aug 28, 2006 | Aug 28, 2006 | Rosetta Resources Operating LP | Webb | South Callaghan Ranch #239 | 9,000 | 47939620 |
| 624420 | Aug 21, 2006 | Aug 21, 2006 | Rosetta Resources Operating LP | Webb | South Callaghan Ranch #241 | 9,000 | 47939630 |
| 624342 | Aug 21, 2006 | Aug 21, 2006 | Rosetta Resources Operating LP | Webb | South Callaghan Ranch #240 | 8,800 | 47939626 |
| 623981 | Aug 15, 2006 | Aug 15, 2006 | Rosetta Resources Operating LP | Webb | El Corazon Ranch #6 | 8,600 | 47939623 |
| 623717 | Aug 9, 2006 | Aug 9, 2006 | Rosetta Resources Operating LP | Webb | El Corazon Ranch #11 | 8,700 | 47939613 |
| 623339 | Aug 3, 2006 | Aug 3, 2006 | Rosetta Resources Operating LP | Webb | South Callaghan Ranch #242 | 9,300 | 47939607 |
| 623335 | Aug 3, 2006 | Aug 3, 2006 | Rosetta Resources Operating LP | Webb | South Callaghan Ranch #244 | 9,400 | 47939606 |
| 623009 | Jul 24, 2006 | Jul 24, 2006 | Rosetta Resources Operating LP | Webb | El Corazon Ranch #8 | 9,900 | 47939596 |
| 620275 | Jun 1, 2006 | Jun 1, 2006 | Rosetta Resources Operating LP | Colorado | Waligura Unit #2 | 10,000 | 08932487 |
| 619602 | May 25, 2006 | May 25, 2006 | Rosetta Resources Operating LP | Webb | G. B. G. L. and C. Co. Ltd. #13 | 7,500 | 47939529 |
| 619594 | May 24, 2006 | May 24, 2006 | Rosetta Resources Operating LP | Webb | South Callaghan Ranch #238 | 8,500 | 47939531 |
| 619594Amendment | May 24, 2006 | May 24, 2006 | Rosetta Resources Operating LP | Webb | South Callaghan Ranch #238 | 8,800 | 47939531 |
| 619593 | May 24, 2006 | May 24, 2006 | Rosetta Resources Operating LP | Webb | South Callaghan Ranch #237 | 8,000 | 47939528 |
| 619593Amendment | May 24, 2006 | May 24, 2006 | Rosetta Resources Operating LP | Webb | South Callaghan Ranch #237 | 8,000 | 47939528 |
| 619592 | May 24, 2006 | May 24, 2006 | Rosetta Resources Operating LP | Webb | South Callaghan Ranch #236 | 8,000 | 47939527 |
| 619217 | May 15, 2006 | May 15, 2006 | Rosetta Resources Operating LP | Colorado | Shooter #1R | 7,250 | 08932483 |