| Harris, Susan GU No. 2 G-6-82683 | Comstock Oil & Gas, LP only | Darco S.E. Cotton Valley | Harrison | 1 | 0 | 650K | Jan 1993 – Aug 2018 |
| Harris, John W. et Al G-6-82684 | Spartan Operating Company, Inc. only | Darco S.E. Cotton Valley | Harrison | 1 | 0 | 0 | Jan 1993 – Jun 1994 |
| Byrne, Hazel R. Gas Unit No. 2 G-6-84944 | Linn Operating, Inc. only | Darco S.E. Cotton Valley | Harrison | 1 | 0 | 312K | Jan 1993 – Mar 2016 |
| Jenkins -A- G-6-93284 | Diversified Production LLC only | Darco S.E. Cotton Valley | Harrison | 1 | 0 | 368K | Jan 1993 – Jul 2026 |
| Harrison, B. S. G-6-151183 | Comstock Oil & Gas, LP only | Darco S.E. Cotton Valley | Harrison | 1 | 0 | 657K | Jul 1994 – Aug 2012 |
| Jenkins -A- G-6-187604 | Linn Operating, Inc. only | Darco S.E. Cotton Valley | Harrison | 1 | 0 | 388K | Oct 2001 – May 2015 |
| Harris G-6-197998 | Harleton Oil & Gas Inc. only | Darco S.E. Cotton Valley | Harrison | 1 | 0 | 1.11M | Oct 2003 – Jul 2026 |
| Harris, Susan B. GU No. 2 G-6-203033 | Brookston Energy, Inc. only | Darco S.E. Cotton Valley | Harrison | 1 | 0 | 850K | May 2004 – Jul 2026 |
| Meek-Haynes G-6-203784 | Diversified Production LLC only | Darco S.E. Cotton Valley | Harrison | 1 | 0 | 276K | Apr 2004 – Jul 2026 |
| Meek-Haynes G-6-208990 | Diversified Production LLC only | Darco S.E. Cotton Valley | Harrison | 1 | 0 | 945K | Dec 2004 – Jul 2026 |
| Layton G-6-209651 | Brookston Energy, Inc. only | Darco S.E. Cotton Valley | Harrison | 1 | 0 | 818K | Mar 2005 – Jul 2026 |
| Jenkins -A- G-6-213398 | Diversified Production LLC only | Darco S.E. Cotton Valley | Harrison | 1 | 0 | 548K | Apr 2005 – Jul 2026 |
| Robertson, George G-6-214329 | Valence Operating Company only | Darco S.E. Cotton Valley | Harrison | 1 | 0 | 331K | Jul 2005 – Jul 2026 |
| Harris, Susan B. GU No. 2 G-6-219494 | Brookston Energy, Inc. only | Darco S.E. Cotton Valley | Harrison | 1 | 0 | 522K | Feb 2006 – Jul 2026 |
| Harrison, B. S. G-6-219566 | Brookston Energy, Inc. only | Darco S.E. Cotton Valley | Harrison | 1 | 0 | 563K | Mar 2006 – Jul 2026 |
| Harrison, B. S. G-6-220489 | Brookston Energy, Inc. only | Darco S.E. Cotton Valley | Harrison | 1 | 0 | 449K | Apr 2006 – Jul 2026 |
| Harrison, B. S. G-6-222009 | Brookston Energy, Inc. only | Darco S.E. Cotton Valley | Harrison | 1 | 0 | 622K | Jul 2006 – Jul 2026 |
| Harrison, B. S. G-6-222282 | Brookston Energy, Inc. only | Darco S.E. Cotton Valley | Harrison | 1 | 0 | 286K | Jul 2006 – Jul 2026 |
| Harris, Susan B. GU No. 2 G-6-222414 | Brookston Energy, Inc. only | Darco S.E. Cotton Valley | Harrison | 1 | 0 | 678K | Aug 2006 – Jul 2026 |
| Layton G-6-222558 | Brookston Energy, Inc. only | Darco S.E. Cotton Valley | Harrison | 1 | 0 | 657K | Aug 2006 – Jul 2026 |
| Byrne, Hazel R. Gas Unit No. 2 G-6-222765 | Diversified Production LLC only | Darco S.E. Cotton Valley | Harrison | 1 | 0 | 629K | Jul 2006 – Jul 2026 |
| Harris, Doyle Gas Unit G-6-224168 | Diversified Production LLC only | Darco S.E. Cotton Valley | Harrison | 1 | 0 | 878K | Nov 2006 – Jul 2026 |
| Jenkins -A- G-6-224446 | Berry Petroleum Company, LLC only | Darco S.E. Cotton Valley | Harrison | 1 | 0 | 601K | Sep 2006 – Jan 2018 |
| Jenkins -A- G-6-224448 | Diversified Production LLC only | Darco S.E. Cotton Valley | Harrison | 1 | 0 | 221K | Nov 2006 – Jul 2026 |
| Jenkins "A" G-6-224451 | Diversified Production LLC only | Darco S.E. Cotton Valley | Harrison | 1 | 0 | 278K | Dec 2006 – Jul 2026 |
| Harris, Doyle Gas Unit G-6-224642 | Diversified Production LLC only | Darco S.E. Cotton Valley | Harrison | 1 | 0 | 279K | Oct 2006 – Jul 2026 |
| Harris, Doyle Gas Unit G-6-224923 | Diversified Production LLC only | Darco S.E. Cotton Valley | Harrison | 1 | 0 | 603K | Dec 2006 – Jul 2026 |
| Harris, Susan B. GU No. 2 G-6-225317 | Brookston Energy, Inc. only | Darco S.E. Cotton Valley | Harrison | 1 | 0 | 275K | Jan 2007 – Jul 2026 |
| Layton G-6-225716 | Brookston Energy, Inc. only | Darco S.E. Cotton Valley | Harrison | 1 | 0 | 241K | Feb 2007 – Jul 2026 |
| Harris, Susan B. GU No. 2 G-6-226088 | Brookston Energy, Inc. only | Darco S.E. Cotton Valley | Harrison | 1 | 0 | 429K | Jan 2007 – Jul 2026 |
| Harrison, B. S. G-6-226094 | Brookston Energy, Inc. only | Darco S.E. Cotton Valley | Harrison | 1 | 0 | 354K | Feb 2007 – Jul 2026 |
| Meek-Haynes G-6-226101 | Diversified Production LLC only | Darco S.E. Cotton Valley | Harrison | 1 | 0 | 514K | Jan 2007 – Jul 2026 |
| Layton G-6-226563 | Brookston Energy, Inc. only | Darco S.E. Cotton Valley | Harrison | 1 | 0 | 133K | Feb 2007 – Jul 2026 |
| Jenkins "A" G-6-227698 | Diversified Production LLC only | Darco S.E. Cotton Valley | Harrison | 1 | 0 | 479K | Feb 2007 – Jul 2026 |
| Harris, Susan B. GU No. 2 G-6-228292 | Brookston Energy, Inc. only | Darco S.E. Cotton Valley | Harrison | 1 | 0 | 602K | Apr 2007 – Jul 2026 |
| Harrison, B. S. G-6-228399 | Brookston Energy, Inc. only | Darco S.E. Cotton Valley | Harrison | 1 | 0 | 435K | Mar 2007 – Jul 2026 |
| Layton G-6-228574 | Brookston Energy, Inc. only | Darco S.E. Cotton Valley | Harrison | 1 | 0 | 250K | May 2007 – Jul 2026 |
| Harrison, B. S. G-6-229117 | Brookston Energy, Inc. only | Darco S.E. Cotton Valley | Harrison | 1 | 0 | 310K | May 2007 – Jul 2026 |
| Pugh G-6-231384 | Valence Operating Company only | Darco S.E. Cotton Valley | Harrison | 1 | 0 | 1.13M | Jan 2007 – Jul 2026 |
| Meek-Haynes G-6-231465 | Diversified Production LLC only | Darco S.E. Cotton Valley | Harrison | 1 | 0 | 528K | Jul 2007 – Jul 2026 |
| Byrne, Hazel R. Gas Unit No. 2 G-6-233843 | Diversified Production LLC only | Darco S.E. Cotton Valley | Harrison | 1 | 0 | 396K | Nov 2007 – Jul 2026 |
| Byrne, Hazel R. Gas Unit No. 2 G-6-234133 | Diversified Production LLC only | Darco S.E. Cotton Valley | Harrison | 1 | 0 | 372K | Aug 2007 – Jul 2026 |
| Jenkins "A" G-6-234135 | Diversified Production LLC only | Darco S.E. Cotton Valley | Harrison | 1 | 0 | 674K | Aug 2007 – Jul 2026 |
| Byrne, Hazel R. Gas Unit No. 2 G-6-234136 | Diversified Production LLC only | Darco S.E. Cotton Valley | Harrison | 1 | 0 | 274K | Sep 2007 – Jul 2026 |
| Meek-Haynes G-6-234139 | Diversified Production LLC only | Darco S.E. Cotton Valley | Harrison | 1 | 0 | 375K | Oct 2007 – Jul 2026 |
| Harris, Doyle Gas Unit G-6-234142 | Diversified Production LLC only | Darco S.E. Cotton Valley | Harrison | 1 | 0 | 618K | Nov 2007 – Jul 2026 |
| Slone G-6-234380 | Brookston Energy, Inc. only | Darco S.E. Cotton Valley | Harrison | 1 | 0 | 362K | Nov 2007 – Jul 2026 |
| Harris, Doyle Gas Unit G-6-234527 | Linn Operating, Inc. only | Darco S.E. Cotton Valley | Harrison | 1 | 0 | 311K | Sep 2007 – Oct 2016 |
| Slone "A" G-6-234551 | Brookston Energy, Inc. only | Darco S.E. Cotton Valley | Harrison | 1 | 0 | 132K | Jan 2008 – Jul 2026 |
| Harris, Susan B. GU No. 2 G-6-234555 | Brookston Energy, Inc. only | Darco S.E. Cotton Valley | Harrison | 1 | 0 | 424K | Dec 2007 – Jul 2026 |