| Doughtie S. T. #1042-201-00437 | Tortuga Operating Company only | HarrisTomball (Jackson 4400) | PluggedGas | 5,550 | Jun 6, 2013 | 1 | — |
| Doughtie S. T. #942-201-00436 | Tortuga Operating Company only | HarrisTomball (Cockfield 5400) | ActiveGas | 5,578 | Jan 31, 2013 | 1 | Apr 2026 |
| Quilter H. -B- #242-201-00401 | Humble Oil & Refining Co. only | HarrisTomball | PluggedOil | 5,567 | Jul 16, 2012 | 1 | — |
| Reid John D. #503D42-201-83043 | Tandem Energy Corporation only | HarrisTomball | PluggedOil | 2,000 | Nov 10, 2003 | 1 | — |
| Schultz E. a #642-201-31947 | Tortuga Operating Company only | HarrisTomball | ActiveGas | 6,720 | Aug 12, 2002 | 3 | Apr 2026 |
| Baker W. W. #242-201-00372 | Galloway Energy Co. only | HarrisTomball (Cockfield) | Temporarily abandonedGas | 5,482 | May 20, 2002 | 1 | Apr 2005 |
| Lewis Sam #8 H42-201-07623 | Tortuga Operating Company only | HarrisTomball (Jackson 4400) | PluggedGas | 6,414 | Aug 22, 2000 | 3 | Apr 2026 |
| Gaither #142-201-32591 | Americo Energy Resources LLC only | HarrisTomball | ActiveInjection | 3,500 | May 1, 2000 | 1 | — |
| Hirsch Fred #242-201-00330 | Tortuga Operating Company only | HarrisTomball (Cockfield) | PluggedGas | 5,578 | Apr 28, 2000 | 3 | May 2005 |
| Tomball GU 5 #542-201-00205 | Tandem Energy Corporation only | HarrisTomball | Temporarily abandonedGas | 5,574 | Jul 12, 1995 | 3 | — |
| Mueller E. E. #542-201-00223 | Tortuga Operating Company only | HarrisTomball (Cockfield 5400) | ActiveGas | 5,615 | Jun 28, 1993 | 1 | Apr 2026 |
| Mueller E. E. #242-201-00221 | Tortuga Operating Company only | HarrisTomball (Miocene 3150) | Temporarily abandonedGas | 5,576 | Nov 18, 1992 | 1 | Aug 2000 |
| Faris Gas Unit #242-201-08043 | Tortuga Operating Company only | HarrisHooks (Shallow) | PluggedGas | 5,570 | Mar 21, 1990 | 4 | Apr 1994 |
| Tomball GU 16 #142-201-00137 | Tandem Energy Corporation only | HarrisTomball (Stray 5300) | Temporarily abandonedGas | 5,577 | Feb 28, 1990 | 2 | Apr 2003 |
| Faris C.P. #242-201-31484 | Tortuga Operating Company only | HarrisTomball | Shut inOil | 5,814 | Dec 4, 1989 | 3 | — |
| Tomball Gas Unit 7 #342-201-00603 | Tortuga Operating Company only | HarrisTomball (Cockfield UP 1-5300 SE) | ActiveGas | 5,577 | Jun 13, 1989 | 1 | Apr 2026 |
| Holderrieth Christine B #242-201-08036 | Exxon Corp. only | HarrisTomball (Miocene 1650) | PluggedGas | 5,562 | Jul 20, 1988 | 2 | — |
| Kuehn M. J. #642-201-00687 | Exxon Corp. only | HarrisTomball (Cockfield UP 1-5300 SE) | PluggedGas | 5,560 | Jan 6, 1988 | 2 | — |
| Hoffman C. F. #242-201-81430 | Exxon Corp. only | HarrisTomball | PluggedOil | 5,541 | Dec 14, 1987 | 1 | — |
| Tomball GU 14 #1442-201-80246 | Exxon Corp. only | HarrisTomball | PluggedGas | 5,584 | Nov 18, 1987 | 2 | — |
| Quilter H. -a- #642-201-08034 | Gaither Petroleum Corporation only | HarrisTomball (Cockfield UP 1-5300 SE) | PluggedGas | 5,562 | Apr 9, 1987 | 1 | Oct 2014 |
| Norvell L. T. #142-201-00578 | Exxon Corp. only | HarrisTomball | PluggedOil | 5,564 | Jul 4, 1986 | 2 | — |
| Stallones B. E. B #342-201-00381 | Exxon Corp. only | HarrisTomball (Miocene 3320) | PluggedGas | 5,580 | Jun 24, 1986 | 3 | — |
| Rudel C. R. #142-201-00384 | Tortuga Operating Company only | HarrisTomball (Cockfield Upper 5500SW) | ActiveGas | 5,572 | Apr 30, 1986 | 2 | Apr 2026 |
| Hirsch F. H. #142-201-80077 | Exxon Corp. only | HarrisTomball | PluggedGas | 5,579 | Mar 31, 1986 | 1 | — |
| Frederick E. L. #142-201-00225 | Exxon Corp. only | HarrisTomball | PluggedGas | 5,572 | Feb 26, 1986 | 1 | — |
| Faris C. P. #1D42-201-00696 | Tortuga Operating Company only | HarrisTomball (Miocene 3400) | Temporarily abandonedGas | 4,012 | Sep 27, 1985 | 1 | — |
| Townsite Unit #2 #142-201-00489 | Exxon Corp. only | HarrisTomball | PluggedOil | 5,587 | Aug 6, 1985 | 2 | — |
| Mueller E. E. #642-201-00224 | Tortuga Operating Company only | HarrisTomball (Schultz Central) | PluggedOil | 5,616 | Apr 17, 1985 | 1 | — |
| Tomball GU 17 #242-201-00559 | Exxon Corp. only | HarrisTomball (Miocene 1650) | PluggedGas | 5,580 | Mar 28, 1985 | 3 | — |
| Reid John D. #2942-201-07917 | Tandem Energy Corporation only | HarrisTomball (Schultz SE.) | ActiveOil | 9,500 | Jan 8, 1985 | 3 | Apr 2026 |
| Winslow J.L. #2 F42-201-07633 | Exxon Corp. only | HarrisTomball | PluggedOil | 6,613 | Oct 15, 1984 | 1 | — |
| Holderrieth P. #842-201-31587 | Exxon Corp. only | HarrisTomball (Schultz SE.) | PluggedOil | 6,180 | Oct 3, 1984 | 3 | — |
| Dooley E.T. #142-201-00519 | Exxon Corp. only | HarrisTomball | PluggedOil | 5,572 | Oct 27, 1983 | 1 | — |
| Reid John D. #510D42-201-00166 | Tandem Energy Corporation only | HarrisTomball | Shut inOil | 5,549 | Sep 6, 1983 | 1 | — |
| Dooley Matilda Lucas #142-201-00560 | Exxon Corp. only | HarrisTomball | PluggedGas | 5,592 | Aug 30, 1983 | 2 | — |
| Theis Fritz a/C #1 #142-201-00623 | Tandem Energy Corporation only | HarrisTomball (Schultz SE.) | PluggedOil | 5,560 | Aug 30, 1983 | 3 | — |
| Stallons B. E. -B- #142-201-00379 | Exxon Corp. only | HarrisTomball | PluggedGas | 5,582 | Aug 23, 1983 | 1 | — |
| Holderrieth John a/C 2 #642-201-00571 | Exxon Corp. only | HarrisTomball | PluggedOil | 5,567 | Aug 1, 1983 | 2 | — |
| Reid John D. #142-201-00158 | Tandem Energy Corporation only | HarrisTomball (Schultz SE.) | PluggedOil | 5,565 | Jul 26, 1983 | 2 | — |
| Kobs J.F.W. -a- #342-201-00193 | Exxon Corp. only | HarrisTomball | PluggedOil | 5,565 | May 5, 1983 | 1 | — |
| Michel R. #242-201-00383 | Exxon Corp. only | HarrisTomball (Jackson 4400) | PluggedGas | 5,573 | Jan 11, 1983 | 3 | — |
| Thomas O. W. #142-201-00557 | Exxon Corp. only | HarrisTomball (Cockfield UP 1-5300 SE) | PluggedGas | 5,564 | Sep 27, 1982 | 2 | — |
| Kobs Fritz a #242-201-00186 | Exxon Corp. only | HarrisWildcat | PluggedOil | 5,565 | Sep 14, 1982 | 3 | — |
| State of Texas #1 D42-201-31432 | MJ Oil Inc. only | HarrisTomball | PluggedOil | 4,200 | Aug 17, 1982 | 1 | Oct 2001 |
| Tomball GU 17 #142-201-00503 | Exxon Corp. only | HarrisTomball (Cockfield Upper 5500) | PluggedGas | 5,572 | Aug 9, 1982 | 1 | — |
| Reid John D. #508D42-201-00169 | Tandem Energy Corporation only | HarrisTomball | PluggedOil | 5,569 | Jul 20, 1982 | 1 | — |
| Reid John D. #509D42-201-00173 | Tandem Energy Corporation only | HarrisTomball | ActiveInjection | 5,542 | Jul 20, 1982 | 1 | — |
| Michel R. -B- a/C #1 #142-201-00558 | Exxon Corp. only | HarrisTomball (Jackson 4400) | PluggedGas | 5,566 | Jul 6, 1982 | 1 | — |
| Ziegler A. #242-201-00376 | Pringle Petroleum Inc. only | HarrisTomball (Miocene 1750) | PluggedGas | 5,584 | Jul 2, 1982 | 2 | — |