| Conroe Field Unit O-3-11659 | Highmark Energy Operating, LLC | Conroe | Montgomery | 664 | 26.7M | 61.4M | Jan 1993 – Apr 2026 |
| Stringfield, Tommye G-5-123556 | Highmark Energy Operating, LLC | Sand Trap (James Lime) | Henderson | 1 | 93.1K | 20.2M | Jan 1993 – Apr 2026 |
| Conroe Field Unit G-3-159118 | Highmark Energy Operating, LLC | Conroe | Montgomery | 1 | 14K | 4.61M | May 1996 – Jun 2000 |
| Conroe Field Unit G-3-164637 | Highmark Energy Operating, LLC | Conroe | Montgomery | 1 | 12.2K | 4.08M | Aug 1997 – May 2001 |
| Conroe Field Unit G-3-165789 | Highmark Energy Operating, LLC | Conroe | Montgomery | 1 | 12.1K | 3.09M | Sep 1997 – Oct 2013 |
| Conroe Field Unit G-3-164636 | Highmark Energy Operating, LLC | Conroe | Montgomery | 1 | 7.9K | 2.5M | Aug 1997 – Dec 2009 |
| Conroe Field Unit G-3-165436 | Highmark Energy Operating, LLC | Conroe | Montgomery | 1 | 6.41K | 545K | Oct 1997 – Apr 2000 |
| Conroe Field Unit G-3-170786 | Highmark Energy Operating, LLC | Conroe | Montgomery | 1 | 4.62K | 2.02M | Oct 1998 – Apr 2026 |
| Conroe Field Unit G-3-159115 | Highmark Energy Operating, LLC | Conroe | Montgomery | 1 | 4.44K | 4.6M | May 1996 – Jul 2007 |
| Conroe Field Unit G-3-164259 | Highmark Energy Operating, LLC | Conroe | Montgomery | 1 | 3.77K | 2.37M | Aug 1997 – Apr 2026 |
| Conroe Field Unit G-3-167444 | Highmark Energy Operating, LLC | Conroe | Montgomery | 1 | 3.71K | 1.03M | Sep 1997 – Apr 2026 |
| Conroe Field Unit G-3-164262 | Highmark Energy Operating, LLC | Conroe | Montgomery | 1 | 3.58K | 1.73M | Aug 1997 – Dec 2014 |
| Conroe Field Unit G-3-165935 | Highmark Energy Operating, LLC | Conroe | Montgomery | 1 | 3.41K | 1.97M | Dec 1997 – Sep 2001 |
| Conroe Field Unit G-3-167854 | Highmark Energy Operating, LLC | Conroe | Montgomery | 1 | 3.36K | 1.8M | Jan 1998 – Apr 2012 |
| Conroe Field Unit G-3-166840 | Highmark Energy Operating, LLC | Conroe | Montgomery | 1 | 3.34K | 1.33M | Jan 1998 – Apr 2026 |
| Conroe Field Unit G-3-169520 | Highmark Energy Operating, LLC | Conroe | Montgomery | 1 | 3.22K | 112K | Jul 1998 – Sep 1999 |
| Conroe Field Unit G-3-165114 | Highmark Energy Operating, LLC | Conroe | Montgomery | 1 | 3.05K | 1.5M | Aug 1997 – Apr 2026 |
| Conroe Field Unit G-3-169204 | Highmark Energy Operating, LLC | Conroe | Montgomery | 1 | 2.97K | 1.21M | Jul 1998 – Sep 2013 |
| Conroe Field Unit G-3-164638 | Highmark Energy Operating, LLC | Conroe | Montgomery | 1 | 2.86K | 2.14M | Aug 1997 – Sep 2007 |
| Conroe Field Unit G-3-165438 | Highmark Energy Operating, LLC | Conroe | Montgomery | 1 | 2.85K | 1.2M | Oct 1997 – Aug 2008 |
| Conroe Field Unit G-3-165784 | Highmark Energy Operating, LLC | Conroe | Montgomery | 1 | 2.82K | 809K | Oct 1997 – Aug 2008 |
| Conroe Field Unit G-3-164675 | Highmark Energy Operating, LLC | Conroe | Montgomery | 1 | 2.77K | 2.74M | Aug 1997 – Aug 2025 |
| Conroe Field Unit G-3-165354 | Highmark Energy Operating, LLC | Conroe | Montgomery | 1 | 2.74K | 992K | Sep 1997 – Jun 2003 |
| Conroe Field Unit G-3-165783 | Highmark Energy Operating, LLC | Conroe | Montgomery | 1 | 2.63K | 891K | Nov 1997 – Jun 2013 |
| Conroe Field Unit G-3-169152 | Highmark Energy Operating, LLC | Conroe | Montgomery | 1 | 2.59K | 1.03M | Jul 1998 – Jul 1999 |
| Conroe Field Unit G-3-170785 | Highmark Energy Operating, LLC | Conroe | Montgomery | 1 | 2.32K | 779K | Oct 1998 – Sep 2008 |
| Conroe Field Unig G-3-167258 | Highmark Energy Operating, LLC | Conroe | Montgomery | 1 | 2.18K | 605K | Mar 1998 – Mar 2010 |
| Conroe Field Unit G-3-166286 | Highmark Energy Operating, LLC | Conroe | Montgomery | 1 | 2.14K | 1.58M | Sep 1997 – Sep 2003 |
| Conroe Field Unit G-3-172520 | Highmark Energy Operating, LLC | Conroe | Montgomery | 1 | 2.09K | 737K | Dec 1998 – May 2009 |
| Conroe Field Unit G-3-168337 | Highmark Energy Operating, LLC | Conroe | Montgomery | 1 | 2.09K | 1.48M | May 1998 – Apr 2026 |
| Conroe Field Unit G-3-159511 | Highmark Energy Operating, LLC | Conroe | Montgomery | 1 | 2.05K | 1.6M | Jun 1996 – Sep 2013 |
| Conroe Field Unit G-3-165780 | Highmark Energy Operating, LLC | Conroe | Montgomery | 1 | 2.04K | 555K | Nov 1997 – Jan 2007 |
| Conroe Field Unit G-3-172695 | Highmark Energy Operating, LLC | Conroe | Montgomery | 1 | 1.91K | 314K | Apr 1999 – Aug 2008 |
| Conroe Field Unit G-3-171928 | Highmark Energy Operating, LLC | Conroe | Montgomery | 1 | 1.88K | 645K | Jan 1999 – Nov 2007 |
| Conroe Field Unit G-3-172149 | Highmark Energy Operating, LLC | Conroe | Montgomery | 1 | 1.76K | 804K | Jan 1999 – May 2002 |
| Conroe Field Unit G-3-168249 | Highmark Energy Operating, LLC | Conroe | Montgomery | 1 | 1.75K | 658K | May 1998 – Aug 2008 |
| Conroe Field Unit G-3-164635 | Highmark Energy Operating, LLC | Conroe | Montgomery | 1 | 1.75K | 1.84M | Aug 1997 – Apr 2004 |
| Conroe Field Unit G-3-169670 | Highmark Energy Operating, LLC | Conroe | Montgomery | 1 | 1.5K | 787K | Jul 1998 – Oct 2016 |
| Conroe Field Unit G-3-167663 | Highmark Energy Operating, LLC | Conroe | Montgomery | 1 | 1.44K | 792K | Feb 1998 – May 2019 |
| Conroe Field Unit G-3-165353 | Highmark Energy Operating, LLC | Conroe | Montgomery | 1 | 1.42K | 1.46M | Oct 1997 – Apr 2026 |
| Conroe Field Unit G-3-168787 | Highmark Energy Operating, LLC | Conroe | Montgomery | 1 | 1.38K | 1.11M | Jun 1998 – Apr 2026 |
| Conroe Field Unit G-3-166345 | Highmark Energy Operating, LLC | Conroe | Montgomery | 1 | 1.27K | 1.11M | Dec 1997 – Apr 2026 |
| Conroe Field Unit G-3-164257 | Highmark Energy Operating, LLC | Conroe | Montgomery | 1 | 1.19K | 1.92M | Jul 1997 – Aug 2008 |
| Conroe Field Unit G-3-172806 | Highmark Energy Operating, LLC | Conroe | Montgomery | 1 | 1.17K | 373K | Apr 1999 – Sep 2005 |
| Conroe Field Unit G-3-58797 | Highmark Energy Operating, LLC | Conroe | Montgomery | 1 | 1.16K | 381K | Jan 1998 – Sep 1999 |
| Conroe Field Unit G-3-159471 | Highmark Energy Operating, LLC | Conroe | Montgomery | 1 | 1.16K | 4.05M | Jun 1996 – Sep 1999 |
| Conroe Field Unit G-3-170782 | Highmark Energy Operating, LLC | Conroe | Montgomery | 1 | 966 | 682K | Oct 1998 – Nov 2016 |
| Conroe Field Unit G-3-276469 | Highmark Energy Operating, LLC | Conroe | Montgomery | 1 | 943 | 82K | May 2015 – Oct 2023 |
| Conroe Field Unit G-3-167255 | Highmark Energy Operating, LLC | Conroe | Montgomery | 1 | 920 | 257K | Feb 1998 – Feb 2005 |
| Conroe Field Unit G-3-171957 | Highmark Energy Operating, LLC | Conroe | Montgomery | 1 | 900 | 455K | Jan 1999 – Oct 2017 |