| Black Stone Minerals #4HZ42-373-31088 | Zarvona Energy LLC | Polk, TXDouble a Wells N (Austin Chalk) | ActiveGas | 13,559 | Apr 13, 2007 | — | — |
| Black Stone McDonnold #1HHZ42-373-31086 | Zarvona Energy LLC | Polk, TXDouble a Wells N (Austin Chalk) | ActiveGas | 13,599 | Apr 12, 2007 | — | — |
| Childress P. L. D #110742-105-40281 | Zarvona Energy LLC | Crockett, TXOzona NE. (Canyon 7520) | ActiveGas | 8,029 | Apr 9, 2007 | — | — |
| Phillips Lake Unit #1REHZ42-457-30629 | Zarvona Energy LLC | Tyler, TXBrookeland (Austin Chalk 8800) | ActiveGas | 15,857 | Apr 9, 2007 | — | — |
| BP America a-995 Unit #1HZ42-241-30741 | Zarvona Energy LLC | Jasper, TXMagnolia Springs (Austin Chalk) | ActiveGas | 13,729 | Apr 4, 2007 | — | — |
| Black Stone-Carter #1HZ42-373-31087 | Zarvona Energy LLC | Polk, TXDouble a Wells N (Austin Chalk) | ActiveGas | 13,539 | Mar 27, 2007 | — | — |
| Bailey J. R. a #51242-105-40251 | Zarvona Energy LLC | Crockett, TXOzona NE. (Canyon 7520) | ActiveGas | 7,935 | Mar 13, 2007 | — | — |
| Bailey J. R. Est B #41242-105-40247 | Zarvona Energy LLC | Crockett, TXOzona NE. (Canyon 7520) | ActiveGas | 8,030 | Mar 12, 2007 | — | — |
| Bailey J. R. Est B #41542-105-40248 | Zarvona Energy LLC | Crockett, TXOzona NE. (Canyon 7520) | ActiveGas | 7,977 | Mar 12, 2007 | — | — |
| Bailey J. R. Est B #41642-105-40249 | Zarvona Energy LLC | Crockett, TXOzona NE. (Canyon 7520) | ActiveGas | 8,090 | Mar 12, 2007 | — | — |
| Childress B #50542-105-40215 | Zarvona Energy LLC | Crockett, TXOzona NE. (Canyon 7520) | ActiveGas | 8,082 | Feb 2, 2007 | — | — |
| Lucas a-24 Unit #1HZ42-457-30656 | Zarvona Energy LLC | Tyler, TXBrookeland (Austin Chalk 8800) | ActiveGas | 12,698 | Jan 24, 2007 | — | — |
| Black Stone Minerals a-5 East #2AHZ42-457-30659 | Zarvona Energy LLC | Tyler, TXBrookeland (Austin Chalk 8800) | ActiveGas | 13,796 | Jan 17, 2007 | — | — |
| Bailey J. R. a #50542-105-40201 | Zarvona Energy LLC | Crockett, TXOzona NE. (Canyon 7520) | ActiveGas | 7,980 | Jan 11, 2007 | — | — |
| Black Stone Minerals a-206 #1HZ42-457-30657 | Zarvona Energy LLC | Tyler, TXBrookeland (Austin Chalk 8800) | ActiveGas | 13,566 | Dec 27, 2006 | — | — |
| Bailey J. R. a #606X42-105-40183 | Zarvona Energy LLC | Crockett, TXOzona NE. (Canyon 7520) | ActiveGas | 8,150 | Dec 19, 2006 | — | — |
| Childress P. L. a #100442-105-40175 | Zarvona Energy LLC | Crockett, TXOzona NE. (Canyon 7520) | ActiveGas | 8,080 | Dec 7, 2006 | — | — |
| Childress P. L. a #100742-105-40176 | Zarvona Energy LLC | Crockett, TXOzona NE. (Canyon 7520) | ActiveGas | 8,548 | Dec 7, 2006 | — | — |
| Childress P. L. C #90542-105-40177 | Zarvona Energy LLC | Crockett, TXOzona NE. (Canyon 7520) | ActiveGas | 8,555 | Dec 7, 2006 | — | — |
| Black Stone Minerals a-354 #2HZ42-457-30651 | Zarvona Energy LLC | Tyler, TXBrookeland (Austin Chalk 8800) | ActiveGas | 13,580 | Dec 4, 2006 | — | — |
| Cinco Terry a #90242-105-40159 | Zarvona Energy LLC | Crockett, TXHolt Ranch (Consolidated) | ActiveGas | 8,481 | Nov 17, 2006 | — | — |
| Cinco Terry a #90342-105-40160 | Zarvona Energy LLC | Crockett, TXHolt Ranch (Consolidated) | ActiveGas | 8,233 | Nov 17, 2006 | — | — |
| Bailey J. R. a #71842-105-40156 | Zarvona Energy LLC | Crockett, TXOzona NE. (Canyon 7520) | ActiveGas | 8,580 | Nov 13, 2006 | — | — |
| Bailey J. R. a #71242-105-40157 | Zarvona Energy LLC | Crockett, TXOzona NE. (Canyon 7520) | ActiveGas | 8,558 | Nov 13, 2006 | — | — |
| Black Stone-Wilburn Unit #1HZ42-457-30645 | Zarvona Energy LLC | Tyler, TXBrookeland (Austin Chalk 8800) | PluggedGas | 13,500 | Oct 9, 2006 | — | — |
| Bailey #31942-105-40118 | Zarvona Energy LLC | Crockett, TXOzona NE. (Canyon 7520) | ActiveGas | 8,110 | Sep 27, 2006 | — | — |
| Bailey J. R. a #309X42-105-40119 | Zarvona Energy LLC | Crockett, TXOzona NE. (Canyon 7520) | ActiveGas | 8,050 | Sep 27, 2006 | — | — |
| Bailey J. R. a #52042-105-40120 | Zarvona Energy LLC | Crockett, TXOzona NE. (Canyon 7520) | ActiveGas | 8,620 | Sep 27, 2006 | — | — |
| Bailey J. R. a #71142-105-40121 | Zarvona Energy LLC | Crockett, TXOzona NE. (Canyon 7520) | ActiveGas | 8,080 | Sep 27, 2006 | — | — |
| P. L. Childress C #90342-105-40122 | Zarvona Energy LLC | Crockett, TXOzona NE. (Canyon 7520) | ActiveGas | 8,017 | Sep 27, 2006 | — | — |
| Black Stone-Batson Unit #1HZ42-373-31081 | Zarvona Energy LLC | Polk, TXDouble a Wells N (Austin Chalk) | ActiveGas | 12,998 | Sep 26, 2006 | — | — |
| Black Stone Minerals a-618 #1HZ42-457-30643 | Zarvona Energy LLC | Tyler, TXBrookeland (Austin Chalk 8800) | ActiveGas | 13,808 | Sep 8, 2006 | — | — |
| Shivers-Black Stone Unit a-7 #2HZ42-457-30642 | Zarvona Energy LLC | Tyler, TXBrookeland (Austin Chalk 8800) | Temporarily abandonedGas | 13,836 | Sep 6, 2006 | — | — |
| Bailey J. R. a #82342-105-40080 | Zarvona Energy LLC | Crockett, TXOzona NE. (Canyon 7520) | ActiveGas | 8,178 | Aug 23, 2006 | — | — |
| Rousselot #132542-413-32389 | Zarvona Energy LLC | Schleicher, TXOzona NE. (Canyon 7520) | ActiveGas | 8,330 | Aug 23, 2006 | — | — |
| Rousselot #460742-413-32390 | Zarvona Energy LLC | Schleicher, TXOzona NE. (Canyon 7520) | ActiveGas | 8,270 | Aug 23, 2006 | — | — |
| Childress P. L. a #100642-105-40050 | Zarvona Energy LLC | Crockett, TXOzona NE. (Canyon 7520) | ActiveGas | 8,590 | Jul 25, 2006 | — | — |
| Childress P. L. E #121342-105-40051 | Zarvona Energy LLC | Crockett, TXOzona NE. (Canyon 7520) | ActiveGas | 8,540 | Jul 25, 2006 | — | — |
| Childress P. L. E #121842-105-40052 | Zarvona Energy LLC | Crockett, TXOzona NE. (Canyon 7520) | ActiveGas | 8,520 | Jul 25, 2006 | — | — |
| Rousselot a #100642-413-32381 | Zarvona Energy LLC | Schleicher, TXOzona NE. (Canyon 7520) | ActiveGas | 8,270 | Jul 19, 2006 | — | — |
| Rousselot #150842-413-32382 | Zarvona Energy LLC | Schleicher, TXOzona NE. (Canyon 7520) | ActiveGas | 8,465 | Jul 19, 2006 | — | — |
| Lauffer #131742-413-32380 | Zarvona Energy LLC | Schleicher, TXOzona NE. (Canyon 7520) | ActiveGas | 8,280 | Jul 11, 2006 | — | — |
| Bailey J. R. a #51342-105-40036 | Zarvona Energy LLC | Crockett, TXOzona NE. (Canyon 7520) | ActiveGas | 8,850 | Jul 10, 2006 | — | — |
| Bailey J. R. a #80842-105-40037 | Zarvona Energy LLC | Crockett, TXOzona NE. (Canyon 7520) | ActiveGas | 8,167 | Jul 10, 2006 | — | — |
| Bailey J. R. Est. B #42042-105-40038 | Zarvona Energy LLC | Crockett, TXOzona NE. (Canyon 7520) | ActiveGas | 8,152 | Jul 10, 2006 | — | — |
| Childress B #50242-105-40039 | Zarvona Energy LLC | Crockett, TXOzona NE. (Canyon 7520) | ActiveGas | 8,087 | Jul 10, 2006 | — | — |
| Childress P. L. #61342-105-40040 | Zarvona Energy LLC | Crockett, TXOzona NE. (Canyon 7520) | ActiveGas | 8,080 | Jul 10, 2006 | — | — |
| Black Stone-Allen a-1 #1HZ42-373-31071 | Zarvona Energy LLC | Polk, TXDouble a Wells N (Austin Chalk) | ActiveGas | 13,461 | Jun 26, 2006 | — | — |
| Bailey #15042-105-40006 | Zarvona Energy LLC | Crockett, TXOzona NE. (Canyon 7520) | ActiveGas | 7,909 | Jun 2, 2006 | — | — |
| Bailey #41542-105-40007 | Zarvona Energy LLC | Crockett, TXOzona NE. (Canyon 7520) | ActiveGas | 7,930 | Jun 2, 2006 | — | — |