| 679907Amendment | May 24, 2010 | May 24, 2010 | Goldston Oil Corporation | Goldston Fee #1 | 7,600 | 42332256 |
| 696303 | May 21, 2010 | May 21, 2010 | Southwest Operating, Inc.-Tyler | Shamgar #1 | 7,000 | 42332281 |
| 695208 | May 4, 2010 | May 4, 2010 | Petrohawk Operating Company | South Tyler Paluxy Unit #5 | 8,000 | 42332278 |
| 692365 | Mar 11, 2010 | Mar 11, 2010 | Culver & Cain Production LLC | Wisenbaker #1 | 8,000 | 42332277 |
| 692323 | Mar 11, 2010 | Mar 11, 2010 | Shoco Production, L.P. | Ellis #1 | 9,000 | 42332192 |
| 692509 | Mar 9, 2010 | Mar 9, 2010 | Southwest Operating, Inc.-Tyler | Holmes Estate #1 | 7,000 | 42332276 |
| 690649 | Feb 4, 2010 | Feb 4, 2010 | 3-T Exploration, Inc. | Fair Unit #1 | 7,100 | 42332275 |
| 690339 | Feb 3, 2010 | Feb 3, 2010 | Goldston Oil Corporation | D.W. Warren #1 | 7,800 | 42332274 |
| 689718 | Jan 14, 2010 | Jan 14, 2010 | Southwest Operating, Inc.-Tyler | Kidd-Dale #2 | 7,000 | 42332273 |
| 689712 | Jan 14, 2010 | Jan 14, 2010 | 3-T Exploration, Inc. | SST Unit #1 | 7,100 | 42332272 |
| 689367 | Jan 12, 2010 | Jan 12, 2010 | Berkshire Operating, LLC | Bain #1 | 13,500 | 42332271 |
| 689367Amendment | Jan 12, 2010 | Jan 12, 2010 | Berkshire Operating, LLC | Bain #1 | 13,500 | 42332271 |
| 688207 | Dec 4, 2009 | Dec 4, 2009 | 3-T Exploration, Inc. | North Unit #1 | 7,300 | 42332270 |
| 687105 | Nov 9, 2009 | Nov 9, 2009 | Carrizo Oil & Gas, Inc. | Chisum #1 | 9,900 | 42331963 |
| 687105Amendment | Nov 9, 2009 | Nov 9, 2009 | Carrizo Oil & Gas, Inc. | Chisum #1 | 10,400 | 42331963 |
| 686753 | Nov 3, 2009 | Nov 3, 2009 | Southwest Operating, Inc.-Tyler | Hall #1 | 7,000 | 42332269 |
| 686128 | Oct 14, 2009 | Oct 14, 2009 | Valence Operating Company | Katherine Luscombe Gas Unit #8 | 15,000 | 42332268 |
| 685595 | Sep 29, 2009 | Sep 29, 2009 | 3-T Exploration, Inc. | Cagle Unit #3 | 7,000 | 42332267 |
| 685595Amendment | Sep 29, 2009 | Sep 29, 2009 | 3-T Exploration, Inc. | Cagle Unit #3 | 7,000 | 42332267 |
| 685326 | Sep 21, 2009 | Sep 21, 2009 | Goldston Oil Corporation | Manley Family Partnership #1 | 7,800 | 42332266 |
| 684471 | Aug 28, 2009 | Aug 28, 2009 | Valence Operating Company | Katherine Luscombe Gas Unit #2 | 15,000 | 42332265 |
| 683819 | Aug 6, 2009 | Aug 6, 2009 | Ops Group Limited | M. Starnes Estate #1 | 11,700 | 42332264 |
| 683245 | Jul 27, 2009 | Jul 27, 2009 | Roosth Production Co. | Willingham-Daniels #1 | 7,900 | 42332157 |
| 683245Amendment | Jul 27, 2009 | Jul 27, 2009 | Roosth Production Co. | Willingham-Daniels #1 | 7,900 | 42332157 |
| 682417 | Jul 9, 2009 | Jul 9, 2009 | Valence Operating Company | Katherine Luscombe Gas Unit #5 | 15,000 | 42332263 |
| 682410 | Jul 9, 2009 | Jul 9, 2009 | Valence Operating Company | Katherine Luscombe Gas Unit #4 | 15,000 | 42332262 |
| 682410Amendment | Jul 9, 2009 | Jul 9, 2009 | Valence Operating Company | Katherine Luscombe Gas Unit #4 | 15,000 | 42332262 |
| 681689 | Jun 1, 2009 | Jun 1, 2009 | Shoco Production, L.P. | Florey Heirs #1 | 9,000 | 42332261 |
| 681363 | May 29, 2009 | May 29, 2009 | Jamex, Inc. | Goolsbee #1 | 10,000 | 42332259 |
| 681467 | May 22, 2009 | May 22, 2009 | Goldston Oil Corporation | Lynn McFarland et Al #1 | 7,800 | 42332260 |
| 681300 | May 19, 2009 | May 19, 2009 | Valence Operating Company | Katherine Luscombe Gas Unit #7 | 15,000 | 42332258 |
| 681300Amendment | May 19, 2009 | May 19, 2009 | Valence Operating Company | Katherine Luscombe Gas Unit #7 | 15,000 | 42332258 |
| 681148 | May 13, 2009 | May 13, 2009 | 3-T Exploration, Inc. | Shamgar Unit #1 | 7,000 | 42332257 |
| 680514 | Apr 17, 2009 | Apr 17, 2009 | J-O'B Operating Company | A. B. Smith #1 | 7,922 | 42330384 |
| 677348 | Jan 16, 2009 | Jan 16, 2009 | Goldston Oil Corporation | Rex R. Coulter, et Al #1 | 7,800 | 42332255 |
| 677188 | Jan 15, 2009 | Jan 15, 2009 | Goldston Oil Corporation | Julia Thompson et Al #1 | 11,000 | 42332254 |
| 674454 | Nov 18, 2008 | Nov 18, 2008 | Southwestern Energy Prod. Co. | Wright Gas Unit 1 #11HH | 11,800 | 42332253 |
| 669460 | Oct 8, 2008 | Oct 8, 2008 | Southwestern Energy Prod. Co. | Kirkpatrick Gas Unit 1 #12 | 12,550 | 42332252 |
| 667034 | Sep 5, 2008 | Sep 5, 2008 | Southwestern Energy Prod. Co. | Kirkpatrick Gas Unit 1 #14 | 12,500 | 42332249 |
| 667034Amendment | Sep 5, 2008 | Sep 5, 2008 | Southwestern Energy Prod. Co. | Kirkpatrick Gas Unit 1 #14 | 12,500 | 42332249 |
| 668870 | Sep 4, 2008 | Sep 4, 2008 | Valence Operating Company | Katherine Luscombe Gas Unit #6 | 15,000 | 42331344 |
| 661995 | Sep 4, 2008 | Sep 4, 2008 | 3-T Exploration, Inc. | Kidd-Dale Unit #1 | 7,100 | 42332237 |
| 668691 | Aug 28, 2008 | Aug 28, 2008 | 3-T Exploration, Inc. | Rainey Unit #1 | 7,100 | 42332251 |
| 668403 | Aug 12, 2008 | Aug 12, 2008 | Carrizo Oil & Gas, Inc. | Tyler State Park Unit "B" #1 | 10,300 | 42332250 |
| 665880 | Aug 8, 2008 | Aug 8, 2008 | Roosth Production Co. | Fender #1 | 6,500 | 42332248 |
| 663359 | Jul 30, 2008 | Jul 30, 2008 | Carrizo Oil & Gas, Inc. | Tyler State Park Unit "A" #1 | 10,250 | 42332238 |
| 665357 | Jul 18, 2008 | Jul 18, 2008 | Wagner & Brown, Ltd. | Stephens GU #2HH | 14,000 | 42332246 |
| 665455 | Jul 17, 2008 | Jul 17, 2008 | Southwestern Energy Prod. Co. | Kirkpatrick Gas Unit 1 #15 | 12,500 | 42332247 |
| 664169 | Jun 27, 2008 | Jun 27, 2008 | Carrizo Oil & Gas, Inc. | Tyler State Park Unit "A" #1A | 11,000 | 42332245 |
| 664114 | Jun 26, 2008 | Jun 26, 2008 | Fair Oil, Ltd. | Stevenson Creek Estates #1 | 8,200 | 42332244 |
| 664092 | Jun 26, 2008 | Jun 26, 2008 | Carrizo Oil & Gas, Inc. | Chisum #2 | 9,700 | 42332243 |
| 663884 | Jun 25, 2008 | Jun 25, 2008 | Exco Partners Operating Ptshp LP | Echard Heirs Unit #7HH | 12,000 | 42332242 |
| 663445 | Jun 20, 2008 | Jun 20, 2008 | Goldston Oil Corporation | Fair Oil, Ltd. #1 | 9,000 | 42332241 |
| 662804 | Jun 18, 2008 | Jun 18, 2008 | Southwest Operating, Inc.-Tyler | Moss Estate #1 | 12,000 | 42332159 |
| 663028 | Jun 16, 2008 | Jun 16, 2008 | Goldston Oil Corporation | Dolores Coulter Trust #1 | 9,000 | 42332240 |
| 662986 | Jun 13, 2008 | Jun 13, 2008 | Southwestern Energy Prod. Co. | Sallie M. Warren Hrs. Gas Unit 1 #15 | 12,250 | 42332239 |
| 661664 | May 29, 2008 | May 29, 2008 | 3-T Exploration, Inc. | Swann Unit #1 | 7,000 | 42332236 |
| 659929 | May 1, 2008 | May 1, 2008 | Tanos Exploration, LLC | Goolsbee #2R | 8,800 | 42330173 |
| 659367 | Apr 25, 2008 | Apr 25, 2008 | Goldston Oil Corporation | McFarland, Eddie #1 | 12,000 | 42332235 |
| 659340 | Apr 25, 2008 | Apr 25, 2008 | Valence Operating Company | Berry #1 | 17,000 | 42332234 |
| 659340Amendment | Apr 25, 2008 | Apr 25, 2008 | Valence Operating Company | Berry #1 | 13,600 | 42332234 |
| 656406 | Apr 16, 2008 | Apr 16, 2008 | Thomas Operating Ltd. Co. | Butler, L A #4 | 8,700 | 42332233 |
| 657364Amendment | Apr 14, 2008 | Apr 14, 2008 | Llog Exploration Texas, L.P. | Jasper Gas Unit #1H | 14,000 | 42332228 |
| 656434 | Apr 8, 2008 | Apr 8, 2008 | Griffin Operating, Inc. | Lena Lang #1 | 8,100 | 42332232 |
| 657711 | Apr 2, 2008 | Apr 2, 2008 | Llog Exploration Texas, L.P. | Jasper Gas Unit #2WS | 200 | 42332231 |
| 657708 | Apr 2, 2008 | Apr 2, 2008 | Llog Exploration Texas, L.P. | Jasper Gas Unit #1WS | 200 | 42332230 |
| 657364 | Mar 27, 2008 | Mar 27, 2008 | Llog Exploration Texas, L.P. | Jasper Gas Unit #1H | 14,000 | 42332228 |
| 657236 | Mar 25, 2008 | Mar 25, 2008 | Southwestern Energy Prod. Co. | Sallie M. Warren HRS Gas Unit 1 #14 | 12,300 | 42332229 |
| 657236Amendment | Mar 25, 2008 | Mar 25, 2008 | Southwestern Energy Prod. Co. | Sallie M. Warren HRS Gas Unit 1 #14 | 12,300 | 42332229 |
| 655731 | Mar 7, 2008 | Mar 7, 2008 | Wagner & Brown, Ltd. | Dyer Gas Unit #3HH | 12,200 | 42332227 |
| 655714 | Feb 28, 2008 | Feb 28, 2008 | Southwestern Energy Prod. Co. | Jesse Randolph Odom Gas Unit 1 #17 | 12,700 | 42332226 |
| 654464 | Feb 9, 2008 | Feb 9, 2008 | Petrohawk Operating Company | South Tyler Paluxy Waterflood UT #4 | 7,900 | 42332225 |
| 653745 | Feb 4, 2008 | Feb 4, 2008 | Valence Operating Company | Bracken Grandchildren Trust #3 | 16,000 | 42332224 |
| 652722 | Jan 16, 2008 | Jan 16, 2008 | Rising Star Petroleum, L.L.C. | Kelly Gas Unit #1 | 12,000 | 42332223 |
| 651932 | Jan 2, 2008 | Jan 2, 2008 | Exco Partners Operating Ptshp LP | Green Bay #11 | 12,600 | 42332222 |
| 649517 | Dec 13, 2007 | Dec 13, 2007 | Southwestern Energy Prod. Co. | Jesse Randolph Odom Gas Unit 1 #8 | 12,400 | 42332221 |
| 650326 | Dec 6, 2007 | Dec 6, 2007 | Southwestern Energy Prod. Co. | Jesse Randolph Odom Gas Unit 1 #13 | 12,600 | 42332220 |
| 650326Amendment | Dec 6, 2007 | Dec 6, 2007 | Southwestern Energy Prod. Co. | Jesse Randolph Odom Gas Unit 1 #13 | 12,600 | 42332220 |
| 650013 | Nov 29, 2007 | Nov 29, 2007 | Exco Partners Operating Ptshp LP | Echard Heirs Unit #6 | 13,000 | 42332218 |
| 648597 | Nov 28, 2007 | Nov 28, 2007 | Southwestern Energy Prod. Co. | Milton Anderson Gas Unit 1 #17 | 12,000 | 42332219 |
| 648214 | Nov 19, 2007 | Nov 19, 2007 | Griffin Operating, Inc. | Mary Lou Manson #1 | 8,000 | 42332216 |
| 647869 | Nov 14, 2007 | Nov 14, 2007 | Southwestern Energy Prod. Co. | Jesse Randolph Odom Gas Unit 1 #10 | 12,400 | 42332215 |
| 647849 | Nov 14, 2007 | Nov 14, 2007 | Southwestern Energy Prod. Co. | Kirkpatrick Gas Unit 1 #17 | 12,500 | 42332214 |
| 649089 | Nov 12, 2007 | Nov 12, 2007 | Southwestern Energy Prod. Co. | Sallie M. Warren Hrs. Gas Unit 1 #8 | 12,200 | 42332217 |
| 648640 | Nov 5, 2007 | Nov 5, 2007 | Exco Partners Operating Ptshp LP | NE Overton Unit #6 | 12,100 | 42332213 |
| 647345 | Oct 31, 2007 | Oct 31, 2007 | Southwestern Energy Prod. Co. | Kirkpatrick Gas Unit 1 #16 | 12,500 | 42332212 |
| 647208 | Oct 31, 2007 | Oct 31, 2007 | Southwestern Energy Prod. Co. | Kirkpatrick Gas Unit 1 #13 | 12,500 | 42332211 |
| 648344 | Oct 30, 2007 | Oct 30, 2007 | Brandon Energy, Inc. | Gary #1 | 10,000 | 42332209 |
| 648332 | Oct 30, 2007 | Oct 30, 2007 | Southwestern Energy Prod. Co. | Sallie M. Warren Hrs. Gas Unit 1 #10 | 12,200 | 42332208 |
| 647084 | Oct 29, 2007 | Oct 29, 2007 | Southwestern Energy Prod. Co. | Jesse Randolph Odom Gas Unit 1 #14 | 12,500 | 42332210 |
| 647802 | Oct 19, 2007 | Oct 19, 2007 | 3-T Exploration, Inc. | Warren Unit #1 | 7,100 | 42332207 |
| 647802Amendment | Oct 19, 2007 | Oct 19, 2007 | 3-T Exploration, Inc. | Warren Unit #1 | 7,800 | 42332207 |
| 647038 | Oct 5, 2007 | Oct 5, 2007 | Southwestern Energy Prod. Co. | Kirkpatrick Gas Unit 1 #11 | 12,300 | 42332206 |
| 646885 | Oct 3, 2007 | Oct 3, 2007 | Chesapeake Operating, Inc. | Overton Gas Unit 3 #12 | 12,000 | 42332205 |
| 645856 | Sep 18, 2007 | Sep 18, 2007 | Southwestern Energy Prod. Co. | P. M. Wilson Heirs Unit 1 #7 | 12,000 | 42332204 |
| 645195 | Aug 31, 2007 | Aug 31, 2007 | Rusk Energy Management, LLC | W.F. Johnson Gas Unit #1 | 13,000 | 42330138 |
| 645114 | Aug 29, 2007 | Aug 29, 2007 | Ensight III Energy Mgmt, LLC | Ware Oil Unit #1 | 8,200 | 42332203 |
| 645114Amendment | Aug 29, 2007 | Aug 29, 2007 | Ensight III Energy Mgmt, LLC | Ware Oil Unit #1 | 8,200 | 42332203 |
| 644884 | Aug 24, 2007 | Aug 24, 2007 | Southwestern Energy Prod. Co. | Perry Gas Unit 1 #11HH | 12,000 | 42332202 |
| 642431 | Aug 21, 2007 | Aug 21, 2007 | Phoenix Hydrocarbons Operating | Johnson, Mike #1 | 7,200 | 42332200 |