| Nunn, John W. G-8-78572 | Maverick Petroleum Corporation only | Morgan Mill (Marble Falls) | Erath | 1 | 0 | 2.63K | Jan 1993 – May 1997 |
| Addison, R. W. G-8-78758 | Eastland Operating, L.L.C. only | Morgan Mill (Marble Falls) | Erath | 1 | 0 | 86.2K | Jan 1993 – Jul 2026 |
| Agri-Place, Inc. G-8-78818 | Eastland Operating, L.L.C. only | Morgan Mill (Marble Falls) | Erath | 1 | 0 | 140K | Jan 1993 – Jul 2026 |
| V. Tipton G-8-78819 | Eastland Operating, L.L.C. only | Morgan Mill (Marble Falls) | Erath | 1 | 0 | 120K | Jan 1993 – Jul 2026 |
| Morris G-8-78826 | Eastland Operating, L.L.C. only | Morgan Mill (Marble Falls) | Erath | 1 | 0 | 207K | Jan 1993 – Jul 2026 |
| Tipton, M.E. G-8-79025 | Maverick Petroleum Corporation only | Morgan Mill (Marble Falls) | Erath | 1 | 0 | 847 | Jan 1993 – May 1997 |
| Addison G-8-79026 | Maverick Petroleum Corporation only | Morgan Mill (Marble Falls) | Erath | 1 | 0 | 4.6K | Jan 1993 – May 1997 |
| Addison G-8-79027 | Maverick Petroleum Corporation only | Morgan Mill (Marble Falls) | Erath | 1 | 0 | 2.93K | Jan 1993 – Apr 1997 |
| Herrin, W.R. G-8-79028 | Hh&f Partners only | Morgan Mill (Marble Falls) | Erath | 1 | 0 | 141K | Jan 1993 – Sep 2019 |
| Tipton G-8-79029 | Owl Creek Operating Co., Inc. only | Morgan Mill (Marble Falls) | Erath | 1 | 0 | 74.3K | Jan 1993 – Jul 2026 |
| Parkey Ranch G-8-80571 | D and N Natural Gas Op. Co. Inc. only | Morgan Mill (Marble Falls) | Erath | 1 | 0 | 3.8K | Jan 1993 – Oct 1998 |
| Parkey Ranch G-8-80572 | D and N Natural Gas Op. Co. Inc. only | Morgan Mill (Marble Falls) | Erath | 1 | 0 | 0 | Jan 1993 – Nov 1998 |
| Parkey Ranch G-8-80585 | D and N Natural Gas Op. Co. Inc. only | Morgan Mill (Marble Falls) | Erath | 1 | 0 | 0 | Jan 1993 – Oct 1998 |
| Drake, R. T. G-8-80607 | Three B, LP only | Morgan Mill (Marble Falls) | Erath | 1 | 0 | 128K | Jan 1993 – Jul 2026 |
| Drake, R.T. G-8-80608 | Three B, LP only | Morgan Mill (Marble Falls) | Erath | 1 | 0 | 235K | Jan 1993 – Jul 2026 |
| Parkey Ranch G-8-80872 | Sun-Key Oil Co., Inc. only | Morgan Mill (Marble Falls) | Erath | 1 | 0 | 86.5K | Jan 1993 – Oct 2009 |
| Drake, R.T. G-8-80978 | Three B, LP only | Morgan Mill (Marble Falls) | Erath | 1 | 0 | 136K | Jan 1993 – Jul 2026 |
| Senter, Tom G-8-81411 | Maverick Petroleum Corporation only | Morgan Mill (Marble Falls) | Erath | 1 | 0 | 1.44K | Jan 1993 – Nov 1998 |
| McAdams G-8-81412 | Swaim, Charles only | Morgan Mill (Marble Falls) | Erath | 1 | 0 | 0 | Jan 1993 – Dec 1993 |
| Armstrong G-8-81413 | Maverick Petroleum Corporation only | Morgan Mill (Marble Falls) | Erath | 1 | 0 | 2.75K | Jan 1993 – Dec 1997 |
| Cantrell, Earl G-8-81414 | Maverick Petroleum Corporation only | Morgan Mill (Marble Falls) | Erath | 1 | 0 | 198 | Jan 1993 – May 1997 |
| Laughlin, V. R. G-8-81416 | Maverick Petroleum Corporation only | Morgan Mill (Marble Falls) | Erath | 1 | 0 | 3.66K | Jan 1993 – Nov 1998 |
| Bramlett, F.G. G-8-81418 | D and N Natural Gas Op. Co. Inc. only | Morgan Mill (Marble Falls) | Erath | 1 | 0 | 21.4K | Jan 1993 – Oct 1998 |
| Sturdivant, D. G-8-81419 | Swaim, Charles only | Morgan Mill (Marble Falls) | Erath | 1 | 0 | 0 | Jan 1993 – Nov 1993 |
| Cantrell, U. D. G-8-81420 | Swaim, Charles only | Morgan Mill (Marble Falls) | Erath | 1 | 0 | 0 | Jan 1993 – Oct 1993 |
| Tipton G-8-81595 | 4M Oil & Gas, LLC only | Morgan Mill (Marble Falls) | Erath | 1 | 0 | 112K | Jan 1993 – Jul 2026 |
| Gaddy G-8-81709 | Gaddy, Otto S. only | Morgan Mill (Marble Falls) | Erath | 1 | 0 | 0 | Jan 1993 – Jul 2026 |
| Watson, J.C. G-8-81710 | D and N Natural Gas Op. Co. Inc. only | Morgan Mill (Marble Falls) | Erath | 1 | 0 | 11.7K | Jan 1993 – Mar 1999 |
| Tipton G-8-81813 | Pack-Man Energy Company only | Morgan Mill (Marble Falls) | Erath | 1 | 0 | 3.77K | Jan 1993 – Apr 1995 |
| Keith, C.F. G-8-82083 | Lewis Operating Co. (L.O.C.O.) only | Morgan Mill (Marble Falls) | Erath | 1 | 0 | 0 | Jan 1993 – Nov 1997 |
| Keith, C. F. G-8-82132 | Lewis Operating Co. (L.O.C.O.) only | Morgan Mill (Marble Falls) | Erath | 1 | 0 | 1.45K | Jan 1993 – Dec 1997 |
| Tipton G-8-82446 | Eastland Operating, L.L.C. only | Morgan Mill (Marble Falls) | Erath | 1 | 0 | 20.9K | Jan 1993 – Jul 2026 |
| McNeil, D. V. G-8-82675 | D and N Natural Gas Op. Co. Inc. only | Morgan Mill (Marble Falls) | Erath | 1 | 0 | 8.26K | Jan 1993 – Mar 1999 |
| Keith, C.F. G-8-83303 | Lewis Operating Co. (L.O.C.O.) only | Morgan Mill (Marble Falls) | Erath | 1 | 0 | 0 | Jan 1993 – Nov 1997 |
| Keith, C.F. G-8-83309 | Lewis Operating Co. (L.O.C.O.) only | Morgan Mill (Marble Falls) | Erath | 1 | 0 | 0 | Jan 1993 – Dec 1997 |
| Yarbrough,c L G-8-83310 | Marshall, Samuel Meek, Estate Of only | Morgan Mill (Marble Falls) | Erath | 1 | 0 | 71.3K | Jan 1993 – Apr 2012 |
| Byrd G-8-83474 | Pack-Man Energy Company only | Morgan Mill (Marble Falls) | Erath | 1 | 0 | 3.01K | Jan 1993 – Apr 1995 |
| Parkey Ranch G-8-83788 | D and N Natural Gas Op. Co. Inc. only | Morgan Mill (Marble Falls) | Erath | 1 | 0 | 3.68K | Jan 1993 – Mar 1999 |
| Parkey Ranch G-8-83789 | D and N Natural Gas Op. Co. Inc. only | Morgan Mill (Marble Falls) | Erath | 1 | 0 | 7.59K | Jan 1993 – Mar 1999 |
| Winslett, O.C. G-8-83790 | Sun-Key Oil Co., Inc. only | Morgan Mill (Marble Falls) | Erath | 1 | 0 | 36.4K | Jan 1993 – Jun 2012 |
| Drake,r.t. "A" G-8-84181 | Three B, LP only | Morgan Mill (Marble Falls) | Erath | 1 | 0 | 6.22K | Jan 1993 – Jul 2026 |
| Deaver, A. Unit G-8-84595 | Marshall, Samuel Meek, Estate Of only | Morgan Mill (Marble Falls) | Erath | 1 | 0 | 14.9K | Jan 1993 – Apr 2012 |
| Ira Huffstutler G-8-85027 | Sun-Key Oil Co., Inc. only | Morgan Mill (Marble Falls) | Hood | 1 | 0 | 67.5K | Jan 1993 – Jan 2013 |
| Herpel-Murphy G-8-85029 | Mosaic Texas LLC only | Morgan Mill (Marble Falls) | Hood | 1 | 0 | 73.5K | Jan 1993 – Jul 2026 |
| Covington G-8-88485 | 9K Investments LLC only | Morgan Mill (Marble Falls) | Erath | 1 | 0 | 57.5K | Jan 1993 – Jul 2026 |
| Fletcher G-8-88486 | Parker Operating Co., Inc. only | Morgan Mill (Marble Falls) | Erath | 1 | 0 | 1.44K | Jan 1993 – Sep 2000 |
| Taylor, David G-8-88559 | Vonski Oil & Gas only | Morgan Mill (Marble Falls) | Erath | 1 | 0 | 4.83K | Jan 1993 – Jun 2009 |
| Curl G-8-91644 | D and N Natural Gas Op. Co. Inc. only | Morgan Mill (Marble Falls) | Erath | 1 | 0 | 28.6K | Jan 1993 – Mar 1999 |
| Cantrell, H. G-8-92550 | D and N Natural Gas Op. Co. Inc. only | Morgan Mill (Marble Falls) | Erath | 1 | 0 | 5.5K | Jan 1993 – Oct 1998 |
| Andrews G-8-92551 | D and N Natural Gas Op. Co. Inc. only | Morgan Mill (Marble Falls) | Erath | 1 | 0 | 1.78K | Jan 1993 – Oct 1998 |