| 763759 | Jun 5, 2013 | Jun 5, 2013 | Newark E&P Operating, LLC | Lonestar #2HH | 9,000 | 11330252 |
| 763126 | May 29, 2013 | May 29, 2013 | Newark E&P Operating, LLC | Appaloosa #7HH | 9,000 | 11330251 |
| 763126Amendment | May 29, 2013 | May 29, 2013 | Newark E&P Operating, LLC | Appaloosa #7HH | 9,000 | 11330251 |
| 758986 | Mar 20, 2013 | Mar 20, 2013 | Newark E&P Operating, LLC | Quarterhorse Unit #16HH | 9,000 | 11330250 |
| 758986Amendment | Mar 20, 2013 | Mar 20, 2013 | Newark E&P Operating, LLC | Quarter Horse #16HH | 9,000 | 11330250 |
| 751594 | Nov 29, 2012 | Nov 29, 2012 | Newark E&P Operating, LLC | Palomino #9HH | 9,000 | 11330249 |
| 751594Amendment | Nov 29, 2012 | Nov 29, 2012 | Newark E&P Operating, LLC | Palomino #9HH | 9,000 | 11330249 |
| 751594Amendment | Nov 29, 2012 | Nov 29, 2012 | Newark E&P Operating, LLC | Palomino #9HH | 9,500 | 11330249 |
| 751594Amendment | Nov 29, 2012 | Nov 29, 2012 | Newark E&P Operating, LLC | Palomino #9HH | 9,500 | 11330249 |
| 739973 | May 16, 2012 | May 16, 2012 | Chesapeake Operating, Inc. | Childs Kelley B #3HH | 12,000 | 11330245 |
| 740038 | May 15, 2012 | May 15, 2012 | Chesapeake Operating, Inc. | Childs Kelley C #2HH | 12,000 | 11330247 |
| 740036 | May 15, 2012 | May 15, 2012 | Chesapeake Operating, Inc. | Childs Kelley C #1HH | 12,000 | 11330246 |
| 740036Amendment | May 15, 2012 | May 15, 2012 | Chesapeake Operating, Inc. | Childs Kelley C #1HH | 12,000 | 11330246 |
| 740036Amendment | May 15, 2012 | May 15, 2012 | Chesapeake Operating, Inc. | Childs Kelley C #1HH | 12,000 | 11330246 |
| 739971 | May 15, 2012 | May 15, 2012 | Chesapeake Operating, Inc. | Childs Kelley B #2HH | 12,000 | 11330244 |
| 739970 | May 15, 2012 | May 15, 2012 | Chesapeake Operating, Inc. | Childs Kelley B #1HH | 12,000 | 11330243 |
| 734777 | Mar 9, 2012 | Mar 9, 2012 | Newark E&P Operating, LLC | Thoroughbred #2HH | 9,500 | 11330242 |
| 734777Amendment | Mar 9, 2012 | Mar 9, 2012 | Newark E&P Operating, LLC | Thoroughbred #2HH | 9,500 | 11330242 |
| 730336 | Dec 22, 2011 | Dec 22, 2011 | Chesapeake Operating, Inc. | DFW #A 7HCH | 9,000 | 11330240 |
| 730292 | Dec 22, 2011 | Dec 22, 2011 | Chesapeake Operating, Inc. | DFW #A 5HCH | 12,000 | 11330241 |
| 730229 | Dec 21, 2011 | Dec 21, 2011 | Chesapeake Operating, Inc. | DFW North #A 3HCH | 9,000 | 11330239 |
| 726187 | Oct 14, 2011 | Oct 14, 2011 | Chesapeake Operating, Inc. | Andie P #3HH | 12,000 | 11330238 |
| 725531 | Oct 4, 2011 | Oct 4, 2011 | Chesapeake Operating, Inc. | Andie P #8HH | 9,000 | 11330237 |
| 725529 | Oct 4, 2011 | Oct 4, 2011 | Chesapeake Operating, Inc. | Andie P #7HH | 9,000 | 11330236 |
| 725527 | Oct 4, 2011 | Oct 4, 2011 | Chesapeake Operating, Inc. | Andie P #6HH | 9,000 | 11330235 |
| 725526 | Oct 4, 2011 | Oct 4, 2011 | Chesapeake Operating, Inc. | Andie P #5HH | 9,000 | 11330234 |
| 725524 | Oct 4, 2011 | Oct 4, 2011 | Chesapeake Operating, Inc. | Andie P #4HH | 9,000 | 11330233 |
| 723556 | Sep 7, 2011 | Sep 7, 2011 | Chesapeake Operating, Inc. | East Carpo #6HH | 12,000 | 11330232 |
| 723556Amendment | Sep 7, 2011 | Sep 7, 2011 | Chesapeake Operating, Inc. | East Carpo #6HH | 12,000 | 11330232 |
| 721457 | Aug 5, 2011 | Aug 5, 2011 | Chesapeake Operating, Inc. | West Carpo #4HH | 12,000 | 11330231 |
| 721457Amendment | Aug 5, 2011 | Aug 5, 2011 | Chesapeake Operating, Inc. | West Carpo #4HH | 12,000 | 11330231 |
| 721456 | Aug 5, 2011 | Aug 5, 2011 | Chesapeake Operating, Inc. | West Carpo #2HH | 12,000 | 11330230 |
| 721456Amendment | Aug 5, 2011 | Aug 5, 2011 | Chesapeake Operating, Inc. | West Carpo #2HH | 12,000 | 11330230 |
| 721455 | Aug 5, 2011 | Aug 5, 2011 | Chesapeake Operating, Inc. | West Carpo #1HH | 12,000 | 11330229 |
| 721455Amendment | Aug 5, 2011 | Aug 5, 2011 | Chesapeake Operating, Inc. | West Carpo #1HH | 12,000 | 11330229 |
| 718349 | Jun 16, 2011 | Jun 16, 2011 | Chesapeake Operating, Inc. | Childs Kelley C #5HH | 12,000 | 11330228 |
| 714339 | May 18, 2011 | May 18, 2011 | Chesapeake Operating, Inc. | Hackman #3HH | 9,000 | 11330226 |
| 714339Amendment | May 18, 2011 | May 18, 2011 | Chesapeake Operating, Inc. | Hackman #3HH | 9,000 | 11330226 |
| 714339Amendment | May 18, 2011 | May 18, 2011 | Chesapeake Operating, Inc. | Hackman #3HH | 9,000 | 11330226 |
| 714339Amendment | May 18, 2011 | May 18, 2011 | Chesapeake Operating, Inc. | Hackman #3HH | 12,000 | 11330226 |
| 714339Amendment | May 18, 2011 | May 18, 2011 | Chesapeake Operating, Inc. | Hackman #3HH | 12,000 | 11330226 |
| 714339Amendment | May 18, 2011 | May 18, 2011 | Chesapeake Operating, Inc. | Hackman #3HH | 12,000 | 11330226 |
| 713369 | Apr 13, 2011 | Apr 13, 2011 | Atmos Energy Corp., Mid-Tex Div. | V-01 #01 | 280 | 11330223 |
| 704110 | Feb 23, 2011 | Feb 23, 2011 | Chesapeake Operating, Inc. | Childs Kelley A #3HH | 10,000 | 11330215 |
| 704110Amendment | Feb 23, 2011 | Feb 23, 2011 | Chesapeake Operating, Inc. | Childs Kelley A #3HH | 10,000 | 11330215 |
| 709901 | Feb 9, 2011 | Feb 9, 2011 | Chesapeake Operating, Inc. | Childs Kelley C #4HH | 12,000 | 11330222 |
| 709901Amendment | Feb 9, 2011 | Feb 9, 2011 | Chesapeake Operating, Inc. | Childs Kelley C #4HH | 12,000 | 11330222 |
| 709901Amendment | Feb 9, 2011 | Feb 9, 2011 | Chesapeake Operating, Inc. | Childs Kelley C #4HH | 12,000 | 11330222 |
| 709900 | Feb 9, 2011 | Feb 9, 2011 | Chesapeake Operating, Inc. | Childs Kelley C #3HH | 12,000 | 11330221 |
| 709900Amendment | Feb 9, 2011 | Feb 9, 2011 | Chesapeake Operating, Inc. | Childs Kelley C #3HH | 12,000 | 11330221 |
| 709900Amendment | Feb 9, 2011 | Feb 9, 2011 | Chesapeake Operating, Inc. | Childs Kelley C #3HH | 12,000 | 11330221 |
| 709318 | Jan 31, 2011 | Jan 31, 2011 | Chesapeake Operating, Inc. | Barnes Assembly A #4HH | 9,000 | 11330218 |
| 709318Amendment | Jan 31, 2011 | Jan 31, 2011 | Chesapeake Operating, Inc. | Barnes Assembly A #4HH | 12,000 | 11330218 |
| 709316 | Jan 31, 2011 | Jan 31, 2011 | Chesapeake Operating, Inc. | Barnes Assembly A #2HH | 9,000 | 11330217 |
| 709316Amendment | Jan 31, 2011 | Jan 31, 2011 | Chesapeake Operating, Inc. | Barnes Assembly A #2HH | 12,000 | 11330217 |
| 709314 | Jan 31, 2011 | Jan 31, 2011 | Chesapeake Operating, Inc. | Barnes Assembly A #1HH | 9,000 | 11330216 |
| 709314Amendment | Jan 31, 2011 | Jan 31, 2011 | Chesapeake Operating, Inc. | Barnes Assembly A #1HH | 12,000 | 11330216 |
| 703963 | Oct 21, 2010 | Oct 21, 2010 | XTO Energy Inc. | CD Geronimo #C 4HH | 10,000 | 11330214 |
| 702743 | Sep 27, 2010 | Sep 27, 2010 | XTO Energy Inc. | Luminant #4HH | 10,000 | 11330213 |
| 702737 | Sep 27, 2010 | Sep 27, 2010 | XTO Energy Inc. | Luminant #3HH | 10,000 | 11330212 |
| 702710 | Sep 27, 2010 | Sep 27, 2010 | XTO Energy Inc. | Luminant #2HH | 10,000 | 11330211 |
| 702707 | Sep 27, 2010 | Sep 27, 2010 | XTO Energy Inc. | Luminant #1D | 10,000 | 11330210 |
| 699458 | Jul 23, 2010 | Jul 23, 2010 | Chief Oil & Gas LLC | North Lake #A 2HH | 8,900 | 11330209 |
| 699457 | Jul 23, 2010 | Jul 23, 2010 | Chief Oil & Gas LLC | North Lake #A 1HH | 8,900 | 11330208 |
| 697459 | Jun 16, 2010 | Jun 16, 2010 | Range Production Company | Waddle A #2HH | 9,000 | 11330206 |
| 697458 | Jun 16, 2010 | Jun 16, 2010 | Range Production Company | Waddle A #1HH | 9,000 | 11330207 |
| 697458Amendment | Jun 16, 2010 | Jun 16, 2010 | Range Production Company | Waddle A #1HH | 9,000 | 11330207 |
| 691364 | Feb 18, 2010 | Feb 18, 2010 | XTO Energy Inc. | CD Geronimo #C 2HH | 10,000 | 11330205 |
| 691364Amendment | Feb 18, 2010 | Feb 18, 2010 | XTO Energy Inc. | CD Geronimo #C 2HH | 10,000 | 11330205 |
| 691361 | Feb 18, 2010 | Feb 18, 2010 | XTO Energy Inc. | CD Geronimo #C 1V | 10,000 | 11330204 |
| 691361Amendment | Feb 18, 2010 | Feb 18, 2010 | XTO Energy Inc. | CD Geronimo #C 1V | 10,000 | 11330204 |
| 690514 | Feb 2, 2010 | Feb 2, 2010 | Chesapeake Operating, Inc. | Corn Valley A #3HH | 9,000 | 11330201 |
| 690513 | Feb 2, 2010 | Feb 2, 2010 | Chesapeake Operating, Inc. | Corn Valley A #2HH | 9,000 | 11330200 |
| 690517 | Feb 1, 2010 | Feb 1, 2010 | Chesapeake Operating, Inc. | Corn Valley B #2HH | 9,000 | 11330202 |
| 688180 | Dec 4, 2009 | Dec 4, 2009 | Chesapeake Operating, Inc. | Childs Kelley A #2HH | 9,000 | 11330198 |
| 688180Amendment | Dec 4, 2009 | Dec 4, 2009 | Chesapeake Operating, Inc. | Childs Kelley A #2HH | 9,000 | 11330198 |
| 688180Amendment | Dec 4, 2009 | Dec 4, 2009 | Chesapeake Operating, Inc. | Childs Kelley A #2HH | 10,000 | 11330198 |
| 687872 | Nov 25, 2009 | Nov 25, 2009 | Chesapeake Operating, Inc. | Andie P #1HH | 9,000 | 11330197 |
| 687872Amendment | Nov 25, 2009 | Nov 25, 2009 | Chesapeake Operating, Inc. | Andie P #1HH | 9,000 | 11330197 |
| 687872Amendment | Nov 25, 2009 | Nov 25, 2009 | Chesapeake Operating, Inc. | Andie P #1HH | 9,000 | 11330197 |
| 687872Amendment | Nov 25, 2009 | Nov 25, 2009 | Chesapeake Operating, Inc. | Andie P #1HH | 9,000 | 11330197 |
| 687872Amendment | Nov 25, 2009 | Nov 25, 2009 | Chesapeake Operating, Inc. | Andie P #1HH | 9,000 | 11330197 |
| 686541 | Oct 23, 2009 | Oct 23, 2009 | Chesapeake Operating, Inc. | Corn Valley B #1HH | 9,000 | 11330196 |
| 686541Amendment | Oct 23, 2009 | Oct 23, 2009 | Chesapeake Operating, Inc. | Corn Valley B #1HH | 9,000 | 11330196 |
| 685946 | Oct 9, 2009 | Oct 9, 2009 | Chesapeake Operating, Inc. | Corn Valley A #1HH | 9,000 | 11330195 |
| 685946Amendment | Oct 9, 2009 | Oct 9, 2009 | Chesapeake Operating, Inc. | Corn Valley A #1HH | 9,000 | 11330195 |
| 685946Amendment | Oct 9, 2009 | Oct 9, 2009 | Chesapeake Operating, Inc. | Corn Valley A #1HH | 9,000 | 11330195 |
| 685946Amendment | Oct 9, 2009 | Oct 9, 2009 | Chesapeake Operating, Inc. | Corn Valley A #1HH | 9,000 | 11330195 |
| 685946Amendment | Oct 9, 2009 | Oct 9, 2009 | Chesapeake Operating, Inc. | Corn Valley A #1HH | 9,000 | 11330195 |
| 685946Amendment | Oct 9, 2009 | Oct 9, 2009 | Chesapeake Operating, Inc. | Corn Valley A #1HH | 9,000 | 11330195 |
| 685946Amendment | Oct 9, 2009 | Oct 9, 2009 | Chesapeake Operating, Inc. | Corn Valley A #1HH | 9,000 | 11330195 |
| 685946Amendment | Oct 9, 2009 | Oct 9, 2009 | Chesapeake Operating, Inc. | Corn Valley A #1HH | 10,000 | 11330195 |
| 685615 | Sep 29, 2009 | Sep 29, 2009 | Chesapeake Operating, Inc. | Andie P #2HH | 9,000 | 11330194 |
| 685615Amendment | Sep 29, 2009 | Sep 29, 2009 | Chesapeake Operating, Inc. | Andie P #2HH | 9,000 | 11330194 |
| 685615Amendment | Sep 29, 2009 | Sep 29, 2009 | Chesapeake Operating, Inc. | Andie P #2HH | 9,000 | 11330194 |
| 685615Amendment | Sep 29, 2009 | Sep 29, 2009 | Chesapeake Operating, Inc. | Andie P #2HH | 9,000 | 11330194 |
| 685512 | Sep 24, 2009 | Sep 24, 2009 | Chesapeake Operating, Inc. | Barnes Assembly A #3HH | 9,000 | 11330193 |
| 685512Amendment | Sep 24, 2009 | Sep 24, 2009 | Chesapeake Operating, Inc. | Barnes Assembly A #3HH | 9,000 | 11330193 |
| 685512Amendment | Sep 24, 2009 | Sep 24, 2009 | Chesapeake Operating, Inc. | Barnes Assembly A #3HH | 9,000 | 11330193 |
| 685512Amendment | Sep 24, 2009 | Sep 24, 2009 | Chesapeake Operating, Inc. | Barnes Assembly A #3HH | 9,000 | 11330193 |