| 804487 | Mar 12, 2015 | Mar 12, 2015 | Tandem Energy Corporation | Hardin | Choate Fee #78 | 2,400 | 19933526 |
| 804486 | Mar 12, 2015 | Mar 12, 2015 | Tandem Energy Corporation | Hardin | Choate Fee #77 | 2,400 | 19933525 |
| 804485 | Mar 12, 2015 | Mar 12, 2015 | Tandem Energy Corporation | Hardin | Choate Fee #76 | 2,400 | 19933524 |
| 804068 | Feb 25, 2015 | Feb 25, 2015 | Tandem Energy Corporation | Hardin | Choate Fee #75 | 2,400 | 19933522 |
| 783235 | Apr 29, 2014 | Apr 29, 2014 | Tandem Energy Corporation | Hardin | Choate Fee #70 | 2,200 | 19933480 |
| 783235Amendment | Apr 29, 2014 | Apr 29, 2014 | Tandem Energy Corporation | Hardin | Choate Fee #70 | 2,400 | 19933480 |
| 782875 | Apr 28, 2014 | Apr 28, 2014 | Tandem Energy Corporation | Hardin | Choate Fee #73 | 2,000 | 19933479 |
| 782665 | Apr 17, 2014 | Apr 17, 2014 | Tandem Energy Corporation | Hardin | Choate Fee #72 | 2,200 | 19933472 |
| 782528 | Apr 17, 2014 | Apr 17, 2014 | Tandem Energy Corporation | Hardin | Choate Fee #71 | 2,200 | 19933471 |
| 770169 | Sep 27, 2013 | Sep 27, 2013 | Tandem Energy Corporation | Hardin | Choate Fee #66 | 3,100 | 19933453 |
| 770168 | Sep 27, 2013 | Sep 27, 2013 | Tandem Energy Corporation | Hardin | Choate Fee #59R | 2,500 | 19933452 |
| 770166 | Sep 27, 2013 | Sep 27, 2013 | Tandem Energy Corporation | Hardin | Choate Fee #69 | 2,800 | 19933451 |
| 763533 | Jun 26, 2013 | Jun 26, 2013 | Tandem Energy Corporation | Hardin | Choate Fee #65 | 2,500 | 19933441 |
| 765196 | Jun 25, 2013 | Jun 25, 2013 | Tandem Energy Corporation | Hardin | Choate Fee #67 | 2,800 | 19933446 |
| 757454 | Mar 5, 2013 | Mar 5, 2013 | Tandem Energy Corporation | Hardin | Choate Fee #62 | 2,800 | 19933421 |
| 756754 | Feb 15, 2013 | Feb 15, 2013 | Tandem Energy Corporation | Hardin | Choate Fee #59 | 2,400 | 19933419 |
| 754211 | Jan 10, 2013 | Jan 10, 2013 | Tandem Energy Corporation | Hardin | Choate Fee #64 | 2,700 | 19933413 |
| 754209 | Jan 10, 2013 | Jan 10, 2013 | Tandem Energy Corporation | Hardin | Choate Fee #63 | 2,700 | 19933412 |
| 753186 | Dec 17, 2012 | Dec 17, 2012 | Tandem Energy Corporation | Hardin | Choate Fee #56 | 3,200 | 19933409 |
| 753166 | Dec 17, 2012 | Dec 17, 2012 | Tandem Energy Corporation | Hardin | Choate Fee #74 | 3,000 | 19933408 |
| 753165 | Dec 17, 2012 | Dec 17, 2012 | Tandem Energy Corporation | Hardin | Choate Fee #68 | 3,100 | 19933407 |
| 753163 | Dec 17, 2012 | Dec 17, 2012 | Tandem Energy Corporation | Hardin | Choate Fee #57 | 3,100 | 19933406 |
| 753162 | Dec 17, 2012 | Dec 17, 2012 | Tandem Energy Corporation | Hardin | Choate Fee #61 | 3,100 | 19933405 |
| 753161 | Dec 17, 2012 | Dec 17, 2012 | Tandem Energy Corporation | Hardin | Choate Fee #60 | 2,800 | 19933404 |
| 753159 | Dec 17, 2012 | Dec 17, 2012 | Tandem Energy Corporation | Hardin | Choate Fee #55 | 3,000 | 19933403 |
| 750726 | Dec 5, 2012 | Dec 5, 2012 | Tandem Energy Corporation | Hardin | Choate Fee #35 | 2,000 | 19933397 |
| 747681 | Sep 14, 2012 | Sep 14, 2012 | Tandem Energy Corporation | Hardin | Choate Fee #54 | 3,000 | 19933390 |
| 742878 | Jun 22, 2012 | Jun 22, 2012 | Tandem Energy Corporation | Hardin | Choate Fee #53 R | 3,200 | 19933374 |
| 740499 | May 22, 2012 | May 22, 2012 | Tandem Energy Corporation | Hardin | Choate Fee #53 | 3,200 | 19933372 |
| 737544 | Apr 9, 2012 | Apr 9, 2012 | Tandem Energy Corporation | Palo Pinto | Ball #27 | 4,000 | 36336067 |
| 735599 | Mar 20, 2012 | Mar 20, 2012 | Tandem Energy Corporation | Hardin | Choate Fee #52 | 3,200 | 19933359 |
| 735346 | Mar 15, 2012 | Mar 15, 2012 | Tandem Energy Corporation | Hardin | Choate Fee #51 | 3,200 | 19933358 |
| 704947 | Nov 12, 2010 | Nov 12, 2010 | Tandem Energy Corporation | Palo Pinto | Ball #26 | 4,000 | 36336015 |
| 704947Amendment | Nov 12, 2010 | Nov 12, 2010 | Tandem Energy Corporation | Palo Pinto | Ball #26 | 4,000 | 36336015 |
| 704947Amendment | Nov 12, 2010 | Nov 12, 2010 | Tandem Energy Corporation | Palo Pinto | Ball #26 | 4,000 | 36336015 |
| 695221 | May 3, 2010 | May 3, 2010 | Tandem Energy Corporation | Palo Pinto | Ball #25 | 4,000 | 36335995 |
| 675211 | Dec 8, 2008 | Dec 8, 2008 | Tandem Energy Corporation | Atascosa | Sarah E. Ferry Unit #3 | 8,800 | 01334038 |
| 670469 | Sep 23, 2008 | Sep 23, 2008 | Tandem Energy Corporation | Palo Pinto | Ball #24HH | 4,000 | 36335849 |
| 665459 | Jul 17, 2008 | Jul 17, 2008 | Tandem Energy Corporation | Scurry | T.J. Sterling "A" #6 | 3,700 | 41534442 |
| 665457 | Jul 17, 2008 | Jul 17, 2008 | Tandem Energy Corporation | Scurry | T.J. Sterling "A" #5 | 3,700 | 41534443 |
| 665140 | Jul 9, 2008 | Jul 9, 2008 | Tandem Energy Corporation | Pecos | G.P. Crone "B" et Al #4 | 3,900 | 37138347 |
| 664580 | Jul 3, 2008 | Jul 3, 2008 | Tandem Energy Corporation | Scurry | Eiland #6 | 3,700 | 41534432 |
| 663418 | Jun 18, 2008 | Jun 18, 2008 | Tandem Energy Corporation | Hardin | Choate Fee #50 | 2,900 | 19933156 |
| 660649 | May 21, 2008 | May 21, 2008 | Tandem Energy Corporation | Pecos | Shelton, George M. Jr. et Al #24 | 3,600 | 37138296 |
| 660648 | May 21, 2008 | May 21, 2008 | Tandem Energy Corporation | Pecos | Shelton, George M. Jr et Al #21 | 3,600 | 37138297 |
| 660646 | May 21, 2008 | May 21, 2008 | Tandem Energy Corporation | Pecos | Shelton, George M. Jr. et Al #20 | 3,600 | 37138295 |
| 660225 | May 21, 2008 | May 21, 2008 | Tandem Energy Corporation | Pecos | George M. Shelton Jr. et Al #22 | 4,000 | 37138286 |
| 659927 | May 1, 2008 | May 1, 2008 | Tandem Energy Corporation | Hardin | Choate Fee #49 | 2,900 | 19933139 |
| 659907 | May 1, 2008 | May 1, 2008 | Tandem Energy Corporation | Hardin | Choate Fee #48 | 2,600 | 19933141 |
| 659901 | May 1, 2008 | May 1, 2008 | Tandem Energy Corporation | Hardin | Choate Fee #47 | 2,700 | 19933140 |
| 659664 | Apr 28, 2008 | Apr 28, 2008 | Tandem Energy Corporation | Scurry | Eiland #5 | 3,500 | 41534419 |
| 658836 | Apr 23, 2008 | Apr 23, 2008 | Tandem Energy Corporation | Hardin | Choate Fee #44 X | 2,700 | 19933136 |
| 656636 | Apr 14, 2008 | Apr 14, 2008 | Tandem Energy Corporation | Pecos | George M. Shelton Jr et Al #23 | 4,000 | 37138229 |
| 653605 | Mar 5, 2008 | Mar 5, 2008 | Tandem Energy Corporation | Hardin | Choate Fee #46 | 2,500 | 19933127 |
| 653587 | Feb 28, 2008 | Feb 28, 2008 | Tandem Energy Corporation | Hardin | Choate Fee #44 | 2,700 | 19933124 |
| 653578 | Jan 30, 2008 | Jan 30, 2008 | Tandem Energy Corporation | Hardin | Choate Fee #43 | 3,200 | 19933116 |
| 652438 | Jan 11, 2008 | Jan 11, 2008 | Tandem Energy Corporation | Hardin | Choate Fee #42 | 3,000 | 19933114 |
| 651499 | Dec 20, 2007 | Dec 20, 2007 | Tandem Energy Corporation | Hardin | Choate Fee #41 | 3,000 | 19933109 |
| 649949 | Dec 17, 2007 | Dec 17, 2007 | Tandem Energy Corporation | Hardin | Choate Fee #45 | 3,000 | 19933108 |
| 649930 | Dec 4, 2007 | Dec 4, 2007 | Tandem Energy Corporation | Hardin | Choate Fee #40 | 3,000 | 19933104 |
| 648145 | Oct 25, 2007 | Oct 25, 2007 | Tandem Energy Corporation | Palo Pinto | Ball #24 | 4,000 | 36335697 |
| 646935 | Oct 23, 2007 | Oct 23, 2007 | Tandem Energy Corporation | Palo Pinto | Ball #23 | 4,000 | 36335699 |
| 643951 | Sep 10, 2007 | Sep 10, 2007 | Tandem Energy Corporation | Harris | Tomball Gas Unit "9" #23 | 10,000 | 20132796 |
| 645057 | Aug 29, 2007 | Aug 29, 2007 | Tandem Energy Corporation | Harris | Tomball Gas Unit "9" #1 | 10,254 | 20100640 |
| 639164 | Aug 2, 2007 | Aug 2, 2007 | Tandem Energy Corporation | Harris | Tomball Gas Unit "6" #4 | 5,561 | 20100586 |
| 639600 | Jul 11, 2007 | Jul 11, 2007 | Tandem Energy Corporation | Harris | Tomball Gas Unit "9" #A 24 | 1,000 | 20132791 |
| 639599 | Jul 11, 2007 | Jul 11, 2007 | Tandem Energy Corporation | Harris | Tomball Gas Unit "9" #A 23 | 1,000 | 20132790 |
| 639598 | Jul 11, 2007 | Jul 11, 2007 | Tandem Energy Corporation | Harris | Tomball Gas Unit "9" #A 22 | 1,000 | 20132789 |
| 639589 | Jul 11, 2007 | Jul 11, 2007 | Tandem Energy Corporation | Harris | Tomball Gas Unit "9" #A 20 | 1,000 | 20132788 |
| 639093 | May 21, 2007 | May 21, 2007 | Tandem Energy Corporation | Harris | Tomball Gas Unit "9" #A 15 | 1,000 | 20132787 |
| 638549 | May 16, 2007 | May 16, 2007 | Tandem Energy Corporation | Harris | Tomball Gas Unit '9' #A 12 | 1,000 | 20132786 |
| 637609 | Apr 30, 2007 | Apr 30, 2007 | Tandem Energy Corporation | Harris | Tomball Gas Unit "9" #A 8 | 1,000 | 20132784 |
| 629514 | Nov 28, 2006 | Nov 28, 2006 | Tandem Energy Corporation | Harris | Tomball Gas Unit "9" #A 13 | 1,000 | 20132774 |
| 627206 | Oct 9, 2006 | Oct 9, 2006 | Tandem Energy Corporation | Harris | Tomball Gas Unit "9" #A 10 | 1,000 | 20132771 |
| 625585 | Sep 18, 2006 | Sep 18, 2006 | Tandem Energy Corporation | Harris | Tomball Gas Unit "9" #A 6 | 999 | 20132770 |
| 625285 | Aug 31, 2006 | Aug 31, 2006 | Tandem Energy Corporation | Harris | Tomball Gas Unit "9" #A 7 | 999 | 20132768 |
| 625283 | Aug 31, 2006 | Aug 31, 2006 | Tandem Energy Corporation | Harris | Tomball Gas Unit "9" #A 9 | 999 | 20132769 |
| 624321 | Aug 15, 2006 | Aug 15, 2006 | Tandem Energy Corporation | Hardin | Choate Fee #39 | 3,000 | 19933041 |
| 624277 | Aug 14, 2006 | Aug 14, 2006 | Tandem Energy Corporation | Hardin | Choate Fee #38 | 3,000 | 19933040 |
| 624109 | Aug 9, 2006 | Aug 9, 2006 | Tandem Energy Corporation | Hardin | Choate Fee #37 | 3,000 | 19933039 |
| 620945 | Jul 25, 2006 | Jul 25, 2006 | Tandem Energy Corporation | Harris | Tomball Gas Unit "9" #A 2 | 1,000 | 20132740 |
| 622393 | Jul 12, 2006 | Jul 12, 2006 | Tandem Energy Corporation | Pecos | Sibley State FS #1 | 4,000 | 37137757 |
| 620907 | Jun 15, 2006 | Jun 15, 2006 | Tandem Energy Corporation | Hardin | Choate Fee #35 | 1,900 | 19933038 |
| 620880 | Jun 14, 2006 | Jun 14, 2006 | Tandem Energy Corporation | Hardin | Choate Fee #36 | 1,900 | 19933037 |
| 619832 | May 24, 2006 | May 24, 2006 | Tandem Energy Corporation | Harris | Tomball Gas Unit "9" #A 5 | 999 | 20132759 |
| 612900 | Jan 27, 2006 | Jan 27, 2006 | Tandem Energy Corporation | Palo Pinto | Bird, Henry #8W | 900 | 36335506 |
| 612346 | Jan 18, 2006 | Jan 18, 2006 | Tandem Energy Corporation | Scurry | Ira (1700' Zone) Unit #3316 | 1,950 | 41534217 |
| 612346Amendment | Jan 18, 2006 | Jan 18, 2006 | Tandem Energy Corporation | Scurry | Ira (1700' Zone) Unit #3316H | 1,950 | 41534217 |
| 611562 | Dec 30, 2005 | Dec 30, 2005 | Tandem Energy Corporation | Scurry | Ira (1700' Zone) Unit #3621 | 1,950 | 41534211 |
| 611561 | Dec 30, 2005 | Dec 30, 2005 | Tandem Energy Corporation | Scurry | Ira (1700' Zone) Unit #3620 | 1,950 | 41534210 |
| 611143 | Dec 20, 2005 | Dec 20, 2005 | Tandem Energy Corporation | Scurry | Ira (1700' Zone) Unit #3619 | 1,950 | 41534206 |
| 610718 | Dec 12, 2005 | Dec 12, 2005 | Tandem Energy Corporation | Scurry | Ira (1700' Zone) Unit #3618 | 1,950 | 41534204 |
| 610106 | Nov 30, 2005 | Nov 30, 2005 | Tandem Energy Corporation | Scurry | Ira (1700' Zone) Unit #6720 | 1,950 | 41534201 |
| 609125 | Nov 9, 2005 | Nov 9, 2005 | Tandem Energy Corporation | Scurry | Ira (1700' Zone) Unit #5955 | 2,000 | 41534196 |
| 609123 | Nov 9, 2005 | Nov 9, 2005 | Tandem Energy Corporation | Scurry | Ira (1700' Zone) Unit #5956 | 2,000 | 41534195 |
| 608398 | Oct 27, 2005 | Oct 27, 2005 | Tandem Energy Corporation | Palo Pinto | Ball #22 | 4,000 | 36335452 |
| 608396 | Oct 27, 2005 | Oct 27, 2005 | Tandem Energy Corporation | Palo Pinto | Ball #20 | 4,000 | 36335451 |
| 608392 | Oct 27, 2005 | Oct 27, 2005 | Tandem Energy Corporation | Palo Pinto | Ball #19 | 4,000 | 36335450 |
| 608391 | Oct 27, 2005 | Oct 27, 2005 | Tandem Energy Corporation | Palo Pinto | Bird, Henry #7 | 4,000 | 36335465 |
| 607788 | Oct 27, 2005 | Oct 27, 2005 | Tandem Energy Corporation | Harris | Holderrieth, P. "A" #3 | 1,000 | 20132739 |