| P. H. Collins Unit O-8-27555 | Proco Operating Co., Inc. | Wagnon (Strawn Granny Sd.) | Palo Pinto | 12 | 80K | 37.5K | May 1995 – Nov 2016 |
| C. P. Clayton O-13-31772 | Proco Operating Co., Inc. | Newark, East (Barnett Shale) | Palo Pinto | 1 | 21.8K | 512K | Jun 2010 – Feb 2021 |
| J.T. Cook O-13-31522 | Proco Operating Co., Inc. | Newark, East (Barnett Shale) | Palo Pinto | 1 | 19.5K | 763K | Sep 2009 – Feb 2021 |
| McQuerry O-13-32854 | Proco Operating Co., Inc. | KRS (Marble Falls) | Palo Pinto | 1 | 18.8K | 581K | Oct 2013 – Dec 2020 |
| Hart Ranch O-8-29511 | Proco Operating Co., Inc. | Pickwick (Marble Falls) | Palo Pinto | 1 | 9.73K | 108K | Mar 2005 – Oct 2016 |
| C. P. Clayton O-13-32827 | Proco Operating Co., Inc. | KRS (Marble Falls) | Palo Pinto | 1 | 5.8K | 420K | May 2013 – Feb 2021 |
| Nash O-13-30512 | Proco Operating Co., Inc. | Newark, East (Barnett Shale) | Palo Pinto | 1 | 5.01K | 33.7K | Jul 2005 – Apr 2013 |
| Clayton Heirs O-13-33056 | Proco Operating Co., Inc. | KRS (Marble Falls) | Palo Pinto | 1 | 4.24K | 224K | Sep 2014 – Oct 2020 |
| Cook, J. T. O-13-32855 | Proco Operating Co., Inc. | KRS (Marble Falls) | Palo Pinto | 1 | 3.76K | 275K | Oct 2013 – Dec 2019 |
| South Graford O-8-31123 | Proco Operating Co., Inc. | Pickwick (Marble Falls) | Palo Pinto | 1 | 3.1K | 145K | Dec 2012 – Feb 2021 |
| Collins, P. H. Unit G-13-178773 | Proco Operating Co., Inc. | Northridge (Atoka Congl.) | Palo Pinto | 1 | 2.71K | 1.01M | Sep 2000 – Feb 2021 |
| Collins, P. H. Unit G-13-179786 | Proco Operating Co., Inc. | Northridge (Atoka Congl.) | Palo Pinto | 1 | 2.32K | 1.04M | Nov 2000 – Feb 2009 |
| P.H. Collins Unit O-8-32141 | Proco Operating Co., Inc. | Oran (Marble Falls) | Palo Pinto | 1 | 1.69K | 57.1K | Jun 2017 – Feb 2021 |
| Nash O-8-32073 | Proco Operating Co., Inc. | Pickwick (Marble Falls) | Palo Pinto | 2 | 1.46K | 34K | Aug 2016 – Feb 2021 |
| McAvoy, Martha G-8-172055 | Proco Operating Co., Inc. | Graford, N. (Strawn) | Palo Pinto | 1 | 1.38K | 592K | Jan 1999 – Feb 2021 |
| Hart-Hickman O-8-32062 | Proco Operating Co., Inc. | Oran (Marble Falls) | Palo Pinto | 3 | 1.28K | 153K | Aug 2016 – Jul 2021 |
| McAvoy, Martha O-13-32716 | Proco Operating Co., Inc. | KRS (Marble Falls) | Palo Pinto | 1 | 1.17K | 58.7K | Sep 2013 – Nov 2018 |
| Century O-13-31782 | Proco Operating Co., Inc. | JMG Mag (Miss) | Palo Pinto | 1 | 969 | 85.4K | Dec 2010 – Dec 2019 |
| Clayton, C. P. G-13-94661 | Proco Operating Co., Inc. | Perrin, SW (Congl 4850) | Palo Pinto | 1 | 621 | 120K | by Jan 1993 – Oct 2012 |
| South Graford O-8-31447 | Proco Operating Co., Inc. | Pickwick (Marble Falls) | Palo Pinto | 1 | 333 | 11K | Aug 2013 – Jul 2017 |
| P.H. Collins Unit G-13-221465 | Proco Operating Co., Inc. | Northridge (Atoka Congl.) | Palo Pinto | 1 | 323 | 451K | Aug 2006 – Feb 2021 |
| Hart Ranch G-8-278064 | Proco Operating Co., Inc. | Hart Ranch (Strawn) | Palo Pinto | 1 | 203 | 38.5K | Nov 2015 – Dec 2021 |
| Clayton, C. P. G-8-174673 | Proco Operating Co., Inc. | Graford (Caddo Congl.) | Palo Pinto | 1 | 195 | 20.1K | Sep 1999 – Sep 2013 |
| Nash O-8-32105 | Proco Operating Co., Inc. | Oran (Marble Falls) | Palo Pinto | 1 | 195 | 4.91K | Jun 2018 – Feb 2021 |
| Clayton, C. P. G-8-31703 | Proco Operating Co., Inc. | Graford (Bend Conglomerate) | Palo Pinto | 1 | 165 | 127K | by Jan 1993 – Oct 2013 |
| Nash G-8-88512 | Proco Operating Co., Inc. | Mineral Wells,north (Big Saline) | Palo Pinto | 1 | 135 | 3.24K | Jun 2004 – Jul 2005 |
| South Graford G-8-284200 | Proco Operating Co., Inc. | Pickwick (Marble Falls) | Palo Pinto | 1 | 110 | 15.4K | Aug 2017 – Jan 2020 |
| Cook, J.T. "A" G-8-114227 | Proco Operating Co., Inc. | Palo Pinto Co. Reg. (Gas) | Palo Pinto | 1 | 87 | 142K | by Jan 1993 – Sep 2020 |
| Tri State Leasing Corp. G-8-187425 | Proco Operating Co., Inc. | Palo Pinto Co. Reg. (Gas) | Palo Pinto | 1 | 72 | 198K | Jan 2002 – Feb 2021 |
| Nash G-8-110187 | Proco Operating Co., Inc. | Palo Pinto Co. Reg. (Gas) | Palo Pinto | 1 | 72 | 47.9K | Jul 1994 – Feb 2021 |
| Hart Ranch G-8-117097 | Proco Operating Co., Inc. | Hart Ranch (Strawn) | Palo Pinto | 1 | 55 | 19.6K | by Jan 1993 – Sep 2004 |
| Hart Ranch G-8-113531 | Proco Operating Co., Inc. | Hart Ranch (Strawn) | Palo Pinto | 1 | 46 | 80K | by Jan 1993 – Dec 2021 |
| Lyon -B- G-8-216232 | Proco Operating Co., Inc. | Hart Ranch (Congl. 4150) | Palo Pinto | 1 | 39 | 57.1K | Jan 2006 – May 2016 |
| Tri State Leasing Corp. G-8-174865 | Proco Operating Co., Inc. | Graford, N. (Strawn) | Palo Pinto | 1 | 39 | 70.6K | Oct 1999 – Feb 2021 |
| Collins, P. H. Unit G-8-31639 | Proco Operating Co., Inc. | Graford (Bend Conglomerate) | Palo Pinto | 1 | 29 | 109K | by Jan 1993 – Apr 2013 |
| Cook, J.T. "A" G-8-127894 | Proco Operating Co., Inc. | Palo Pinto Co. Reg. (Gas) | Palo Pinto | 1 | 29 | 66.6K | by Jan 1993 – Feb 2021 |
| Cook, J. T. G-8-20983 | Proco Operating Co., Inc. | Graford (Bend Conglomerate) | Palo Pinto | 1 | 20 | 34.5K | by Jan 1993 – Feb 2016 |
| South Graford O-8-32028 | Proco Operating Co., Inc. | Graford, E. (Strawn) | Palo Pinto | 1 | 15 | 6.64K | Apr 2016 – Oct 2019 |
| Collins, P. H. Unit G-13-176870 | Proco Operating Co., Inc. | Bartons Chapel, S.(strawn 3100) | Palo Pinto | 1 | 15 | 67.3K | Mar 2000 – Feb 2009 |
| McAvoy, Martha G-13-169863 | Proco Operating Co., Inc. | Bartons Chapel, S. (Strawn 3200) | Palo Pinto | 1 | 9 | 196K | Oct 1998 – Feb 2021 |
| Collins, P. H. Unit G-13-180751 | Proco Operating Co., Inc. | Bartons Chapel, S. (Strawn 3200) | Palo Pinto | 1 | 2 | 93.7K | Jan 2001 – Oct 2013 |
| Collins, P. H. Unit G-8-194337 | Proco Operating Co., Inc. | Graford (Atoka Congl.) | Palo Pinto | 1 | 1 | 770 | Jul 2003 – May 2005 |
| Hart Ranch G-8-100955 | Proco Operating Co., Inc. | Mineral Wells, S. (Congl. 4270) | Palo Pinto | 1 | 1 | 16.6K | by Jan 1993 – Feb 2005 |
| Padgett Ranch G-8-41335 | Proco Operating Co., Inc. | Lone Camp (Bend Conglomerate) | Palo Pinto | 1 | 0 | 0 | — |
| Collins, P. H. Unit G-8-194968 | Proco Operating Co., Inc. | Wildcat | Palo Pinto | 1 | 0 | 0 | — |
| Hart Ranch G-8-256671 | Proco Operating Co., Inc. | Hart Ranch (Strawn) | Palo Pinto | 1 | 0 | 0 | — |
| Bowden-Bane G-8-282944 | Proco Operating Co., Inc. | Hart Ranch (Strawn) | Palo Pinto | 1 | 0 | 7.81K | Oct 2017 – May 2018 |
| Collins, P. H. Unit G-8-285145 | Proco Operating Co., Inc. | Palo Pinto County Regular | Palo Pinto | 1 | 0 | 0 | — |
| Nash G-8-291047 | Proco Operating Co., Inc. | Oran (Marble Falls) | Palo Pinto | 1 | 0 | 0 | — |
| McAvoy, Martha G-13-285480 | Proco Operating Co., Inc. | KRS (Marble Falls) | Palo Pinto | 1 | 0 | 10.3K | Dec 2018 – Feb 2021 |