| Indian Rock Gas Unit #9 #442-459-31020 | Sulphur River Exploration Inc. | UpshurGilmer(jurassic) | ActiveGas | 12,020 | Sep 14, 2006 | 2 | Aug 2026 |
| Laughlin #442-459-31320 | Sulphur River Exploration Inc. | UpshurGilmer(jurassic) | ActiveGas | 12,117 | Jun 22, 2006 | 1 | Aug 2026 |
| Clemens Unit #142-459-30011 | Sulphur River Exploration Inc. | UpshurGilmer(jurassic) | ActiveGas | 11,924 | May 1, 2006 | 1 | Aug 2026 |
| Dean Gas Unit #142-459-31293 | Sulphur River Exploration Inc. | UpshurGilmer(jurassic) | ActiveGas | 12,220 | Dec 12, 2005 | 1 | Aug 2026 |
| Indian Rock Gas Unit #5 #642-459-31034 | Sulphur River Exploration Inc. | UpshurGilmer(jurassic) | ActiveGas | 12,944 | Oct 28, 2005 | 2 | Aug 2026 |
| Indian Rock Gas Unit 6 #742-459-31086 | Sulphur River Exploration Inc. | UpshurGilmer(jurassic) | ActiveGas | 13,000 | Sep 29, 2005 | 5 | Aug 2026 |
| Arrington-Clemens Gas Unit #242-459-31270 | Sulphur River Exploration Inc. | UpshurGilmer(jurassic) | ActiveGas | 12,041 | Aug 10, 2005 | 1 | Aug 2026 |
| Indian Rock Gas Unit 1 #342-459-30699 | Sulphur River Exploration Inc. | UpshurGilmer(jurassic) | ActiveGas | 12,000 | Dec 10, 2004 | 2 | Aug 2026 |
| Indian Rock Gas Unit NO 12 #142-459-31233 | Sulphur River Exploration Inc. | UpshurGilmer(jurassic) | ActiveGas | 13,060 | Dec 10, 2004 | 2 | Aug 2026 |
| Indian Rock Gas Unit No. 3 #442-459-30715 | Sulphur River Exploration Inc. | UpshurGilmer (Cotton Valley Sands) | ActiveGas | 12,220 | Oct 7, 2004 | 2 | Aug 2026 |
| Indian Rock Gas Unit #9 #842-459-31215 | Sulphur River Exploration Inc. | UpshurGilmer(jurassic) | ActiveGas | 12,992 | Sep 3, 2004 | 1 | Aug 2026 |
| Laughlin #342-459-31208 | Sulphur River Exploration Inc. | UpshurGilmer(jurassic) | ActiveGas | 12,953 | Aug 27, 2004 | 1 | Aug 2026 |
| Indian Rock Gas Unit No. 11 #242-459-31115 | Sulphur River Exploration Inc. | UpshurGilmer (Cotton Valley Sands) | ActiveGas | 12,100 | Nov 26, 2003 | 2 | Aug 2026 |
| Trammel Gas Unit #4HZ42-459-31166 | Sulphur River Exploration Inc. | UpshurGilmer(jurassic) | ActiveGas | 15,132 | Nov 25, 2003 | 2 | Aug 2026 |
| Indian Rock Gas Unit No. 9 #242-459-30720 | Sulphur River Exploration Inc. | UpshurGilmer (Cotton Valley Sands) | ActiveGas | 12,030 | Jul 18, 2003 | 2 | Aug 2026 |
| Indian Rock Gas Unit No. 9 #642-459-31088 | Sulphur River Exploration Inc. | UpshurGilmer (Cotton Valley Sands) | ActiveGas | 13,069 | Jun 12, 2003 | 3 | Aug 2026 |
| Indian Rock Gas Unit #7 #942-459-30637 | Sulphur River Exploration Inc. | UpshurGilmer(jurassic) | ActiveGas | 12,101 | Aug 15, 2002 | 2 | Aug 2026 |
| Clemens Unit #842-459-31125 | Sulphur River Exploration Inc. | UpshurGilmer(jurassic) | ActiveGas | 12,150 | Aug 15, 2002 | 2 | Jul 2026 |
| Indian Rock Gas Unit No. 2 #442-459-31118 | Sulphur River Exploration Inc. | UpshurGilmer(jurassic) | ActiveGas | 12,000 | Jun 21, 2002 | 1 | Aug 2026 |
| Indian Rock Gas Unit 3 #942-459-31112 | Sulphur River Exploration Inc. | UpshurGilmer(jurassic) | ActiveGas | 12,140 | May 1, 2002 | 1 | Aug 2026 |
| Indian Rock Gas Unit No. 3 #142-459-00519 | Sulphur River Exploration Inc. | UpshurGilmer (Cotton Valley Sands) | ActiveGas | 11,980 | Jan 15, 2002 | 2 | Aug 2026 |
| Indian Rock Gas Unit #9 #742-459-31095 | Sulphur River Exploration Inc. | UpshurGilmer(jurassic) | ActiveGas | 12,050 | Dec 12, 2001 | 1 | Aug 2026 |
| Indian Rock Gas Unit No. 8 #742-459-31091 | Sulphur River Exploration Inc. | UpshurGilmer(jurassic) | ActiveGas | 12,100 | Dec 10, 2001 | 1 | Aug 2026 |
| Indian Rock Gas Unit No. 8 #842-459-31092 | Sulphur River Exploration Inc. | UpshurGilmer(jurassic) | ActiveGas | 12,100 | Dec 10, 2001 | 1 | Aug 2026 |
| Indian Rock Gas Unit No. 8 #942-459-31093 | Sulphur River Exploration Inc. | UpshurGilmer(jurassic) | ActiveGas | 12,100 | Dec 10, 2001 | 1 | Jul 2026 |
| Clemens Unit #742-459-31089 | Sulphur River Exploration Inc. | UpshurGilmer(jurassic) | ActiveGas | 12,979 | Nov 27, 2001 | 2 | Aug 2026 |
| Indian Rock Gas Unit 6 #642-459-31085 | Sulphur River Exploration Inc. | UpshurGilmer(jurassic) | ActiveGas | 12,000 | Oct 15, 2001 | 1 | Aug 2026 |
| Indian Rock Gas Unit 6 #842-459-31087 | Sulphur River Exploration Inc. | UpshurGilmer(jurassic) | ActiveGas | 12,898 | Oct 15, 2001 | 2 | Jun 2026 |
| Indian Rock Gas Unit #7 #742-459-31082 | Sulphur River Exploration Inc. | UpshurGilmer(jurassic) | ActiveGas | 12,051 | Sep 14, 2001 | 1 | Aug 2026 |
| Indian Rock Gas Unit 3 #842-459-31083 | Sulphur River Exploration Inc. | UpshurGilmer(jurassic) | ActiveGas | 12,025 | Sep 5, 2001 | 1 | Aug 2026 |
| Indian Rock Gas Unit #5 #842-459-31081 | Sulphur River Exploration Inc. | UpshurGilmer(jurassic) | Temporarily abandonedGas | 12,050 | Aug 22, 2001 | 1 | Dec 2022 |
| Indian Rock Gas Unit NO 2 #342-459-31080 | Sulphur River Exploration Inc. | UpshurGilmer(jurassic) | ActiveGas | 12,050 | Aug 21, 2001 | 1 | Aug 2026 |
| Indian Rock Gas Unit #5 #742-459-31077 | Sulphur River Exploration Inc. | UpshurGilmer(jurassic) | Temporarily abandonedGas | 12,024 | Aug 15, 2001 | 1 | Dec 2023 |
| Indian Rock Gas Unit 3 #642-459-31070 | Sulphur River Exploration Inc. | UpshurGilmer(jurassic) | ActiveGas | 12,050 | Jul 26, 2001 | 1 | Aug 2026 |
| Indian Rock Gas Unit 3 #742-459-31071 | Sulphur River Exploration Inc. | UpshurGilmer(jurassic) | Temporarily abandonedGas | 12,025 | Jul 26, 2001 | 1 | Jun 2025 |
| Clemens Unit #642-459-31056 | Sulphur River Exploration Inc. | UpshurGilmer(jurassic) | ActiveGas | 12,050 | May 7, 2001 | 1 | Aug 2026 |
| Indian Rock Gas Unit 6 #542-459-31060 | Sulphur River Exploration Inc. | UpshurGilmer(jurassic) | Temporarily abandonedGas | 13,006 | Apr 26, 2001 | 1 | Oct 2025 |
| Indian Rock Gas Unit No. 8 #642-459-31050 | Sulphur River Exploration Inc. | UpshurGilmer(jurassic) | ActiveGas | 12,050 | Mar 29, 2001 | 1 | Aug 2026 |
| Indian Rock Gas Unit #9 #542-459-31044 | Sulphur River Exploration Inc. | UpshurGilmer(jurassic) | ActiveGas | 12,030 | Feb 28, 2001 | 2 | Aug 2026 |
| Indian Rock Gas Unit 3 #542-459-31036 | Sulphur River Exploration Inc. | UpshurGilmer(jurassic) | ActiveGas | 12,100 | Dec 15, 2000 | 1 | Aug 2026 |
| Indian Rock Gas Unit No. 1 #542-459-31031 | Sulphur River Exploration Inc. | UpshurGilmer(jurassic) | Temporarily abandonedGas | 12,050 | Dec 5, 2000 | 1 | Aug 2025 |
| Indian Rock Gas Unit #7 #642-459-31032 | Sulphur River Exploration Inc. | UpshurGilmer(jurassic) | ActiveGas | 12,050 | Oct 31, 2000 | 1 | Aug 2026 |
| Indian Rock Gas Unit No. 8 #542-459-31022 | Sulphur River Exploration Inc. | UpshurGilmer(jurassic) | ActiveGas | 12,052 | Aug 29, 2000 | 1 | Aug 2026 |
| Indian Rock Gas Unit #7 #542-459-31024 | Sulphur River Exploration Inc. | UpshurGilmer(jurassic) | ActiveGas | 12,000 | Aug 11, 2000 | 1 | Aug 2026 |
| Indian Rock Gas Unit 6 #442-459-31013 | Sulphur River Exploration Inc. | UpshurGilmer(jurassic) | ActiveGas | 12,050 | May 30, 2000 | 1 | Aug 2026 |
| Indian Rock Gas Unit #5 #542-459-31010 | Sulphur River Exploration Inc. | UpshurGilmer(jurassic) | ActiveGas | 12,000 | Apr 18, 2000 | 1 | Aug 2026 |
| Arrington-Clemens Gas Unit #142-459-30953 | Sulphur River Exploration Inc. | UpshurGilmer(jurassic) | ActiveGas | 12,025 | Feb 6, 1998 | 1 | Aug 2026 |
| Indian Rock Gas Unit #9 #342-459-30911 | Sulphur River Exploration Inc. | UpshurGilmer(jurassic) | ActiveGas | 12,000 | Jul 9, 1997 | 1 | Aug 2026 |
| Clemens Unit #542-459-30883 | Sulphur River Exploration Inc. | UpshurGilmer(jurassic) | ActiveGas | 12,000 | Sep 12, 1996 | 1 | Aug 2026 |
| Indian Rock Gas Unit #7 #442-459-30888 | Sulphur River Exploration Inc. | UpshurGilmer(jurassic) | ActiveGas | 12,100 | Sep 12, 1996 | 1 | Aug 2026 |