| Collins P. H. Unit #1842-363-35033 | Proco Operating Co. Inc. only | Palo Pinto, TXPalo Pinto County Regular | PluggedGas | 4,999 | Nov 27, 2018 | — | — |
| Bowden-Bane #442-363-36337 | Proco Operating Co. Inc. only | Palo Pinto, TXHart Ranch (Strawn) | PluggedGas | 2,000 | Apr 28, 2017 | — | — |
| P.H. Collins Unit #2442-363-36333 | Proco Operating Co. Inc. only | Palo Pinto, TXOran (Marble Falls) | ActiveGas | 5,107 | Jan 10, 2017 | — | — |
| Nash #542-363-36331 | Proco Operating Co. Inc. only | Palo Pinto, TXOran (Marble Falls) | PluggedGas | 4,999 | Jul 20, 2016 | — | — |
| Nash #442-363-36328 | Proco Operating Co. Inc. only | Palo Pinto, TXPickwick (Marble Falls) | PluggedOil | 4,999 | Jun 28, 2016 | — | — |
| Hart-Hickman #1242-363-36329 | Proco Operating Co. Inc. only | Palo Pinto, TXOran (Marble Falls) | PluggedOil | 4,999 | Jun 28, 2016 | — | — |
| Hart-Hickman #1142-363-36330 | Proco Operating Co. Inc. only | Palo Pinto, TXOran (Marble Falls) | PluggedOil | 4,999 | Jun 27, 2016 | — | — |
| Nash #342-363-36326 | Proco Operating Co. Inc. only | Palo Pinto, TXPickwick (Marble Falls) | PluggedOil | 4,999 | Apr 22, 2016 | — | — |
| Hart-Hickman #942-363-36327 | Proco Operating Co. Inc. only | Palo Pinto, TXOran (Marble Falls) | PluggedOil | 4,999 | Apr 22, 2016 | — | — |
| South Graford #342-363-36320 | Proco Operating Co. Inc. only | Palo Pinto, TXGraford E. (Strawn) | PluggedOil | 2,450 | Nov 23, 2015 | — | — |
| Hart Ranch #1042-363-36301 | Proco Operating Co. Inc. only | Palo Pinto, TXHart Ranch (Strawn) | Temporarily abandonedGas | 1,952 | May 6, 2015 | — | — |
| Clayton Heirs #142-363-36240 | Proco Operating Co. Inc. only | Palo Pinto, TXKRS (Marble Falls) | Shut inOil | 8,385 | Jun 25, 2014 | — | — |
| Cranford-Lyon #142-237-40130 | Proco Operating Co. Inc. only | Jack, TXKRS (Marble Falls) | PluggedGas | 5,600 | May 30, 2014 | — | — |
| Tucker Oil Unit 1 #142-237-39830 | Proco Operating Co. Inc. only | Jack, TXKRS (Marble Falls) | PluggedOil | 5,450 | Aug 9, 2013 | — | — |
| McQuerry #142-363-36168 | Proco Operating Co. Inc. only | Palo Pinto, TXKRS (Marble Falls) | Shut inOil | 5,073 | Aug 8, 2013 | — | — |
| McAvoy Martha #342-363-36164 | Proco Operating Co. Inc. only | Palo Pinto, TXKRS (Marble Falls) | PluggedGas | 5,200 | Jul 17, 2013 | — | — |
| Cook J. T. #242-363-36163 | Proco Operating Co. Inc. only | Palo Pinto, TXKRS (Marble Falls) | Shut inOil | 5,275 | Jul 16, 2013 | — | — |
| Tucker D. W. a #142-237-33349 | Proco Operating Co. Inc. only | Jack, TXPerrin SW (Congl 4850) | PluggedGas | 4,950 | Apr 24, 2013 | — | — |
| South Graford #242-363-36118 | Proco Operating Co. Inc. only | Palo Pinto, TXPickwick (Marble Falls) | PluggedGas | 5,000 | Feb 22, 2013 | — | — |
| South Graford #142-363-36091 | Proco Operating Co. Inc. only | Palo Pinto, TXPickwick (Marble Falls) | PluggedOil | 4,999 | Sep 19, 2012 | — | — |
| Yates L. H. B #242-237-38377 | Proco Operating Co. Inc. only | Jack, TXBenda (Caddo) | PluggedGas | 6,200 | Aug 21, 2012 | — | — |
| O.L. Caruthers #342-123-00549 | Proco Operating Co., Inc. only | De Witt, TXHolly (Yegua 4500) | Not on schedule | 5,050 | Jun 9, 2011 | — | — |
| Phillip Unit 1 #142-255-31822 | Proco Operating Co., Inc. only | Karnes, TX | Not on schedule | 8,000 | Dec 29, 2010 | — | — |
| Tucker D. W. #342-237-38853 | Proco Operating Co. Inc. only | Jack, TXPerrin SW (Congl 4850) | PluggedGas | 6,000 | Jul 21, 2010 | — | — |
| Century #142-363-36001 | Proco Operating Co. Inc. only | Palo Pinto, TXJMG Mag (Miss) | PluggedOil | 6,000 | Jul 21, 2010 | — | — |
| C. P. Clayton a #1HHZ42-237-39337 | Proco Operating Co. Inc. only | Jack, TXNewark East (Barnett Shale) | PluggedGas | 5,400 | Apr 21, 2010 | — | — |
| J.T. Cook #1HHZ42-363-35943 | Proco Operating Co. Inc. only | Palo Pinto, TXNewark East (Barnett Shale) | Shut inOil | 5,148 | Jul 3, 2009 | — | — |
| Scott Jack #242-059-31093 | Proco Operating Co. Inc. only | Callahan, TXA. C. Scott W. (Ellen) | PluggedOil | 4,004 | May 4, 2009 | — | — |
| Evans-Overstreet #142-221-31289 | Proco Operating Co. Inc. only | Hood, TXNewark East (Barnett Shale) | Temporarily abandonedGas | 5,908 | Feb 14, 2007 | — | — |
| Padgett Ranch #2HZ42-363-30743 | Proco Operating Co. Inc. only | Palo Pinto, TXJ. V. T. (Strawn 2400) | PluggedGas | 4,999 | May 17, 2006 | — | — |
| P.H. Collins Unit #2142-363-35511 | Proco Operating Co. Inc. only | Palo Pinto, TXNorthridge (Atoka Congl.) | PluggedGas | 5,500 | Feb 8, 2006 | — | — |
| Hart Ranch #842-363-35491 | Proco Operating Co. Inc. only | Palo Pinto, TXHart Ranch (Strawn) | PluggedGas | 4,999 | Dec 27, 2005 | — | — |
| Lyon -B- #242-363-35413 | Proco Operating Co. Inc. only | Palo Pinto, TXHart Ranch (Congl. 4150) | Temporarily abandonedGas | 4,560 | Jul 27, 2005 | — | — |
| Hart Ranch #242-363-32875 | Proco Operating Co. Inc. only | Palo Pinto, TXPickwick (Marble Falls) | PluggedOil | 5,200 | Mar 7, 2005 | — | — |
| Nash #142-363-32318 | Proco Operating Co. Inc. only | Palo Pinto, TXNewark East (Barnett Shale) | PluggedOil | 5,050 | Aug 10, 2004 | — | — |
| Youngblood M. #142-367-32768 | Proco Operating Co. Inc. only | Parker, TXSoda Springs (Strawn) | PluggedGas | 5,000 | Aug 10, 2004 | — | — |
| Collins P. H. Unit #1942-363-35121 | Proco Operating Co. Inc. only | Palo Pinto, TXGraford (Atoka Congl.) | PluggedGas | 4,999 | Oct 25, 2002 | — | — |
| Tri State Leasing Corp. #242-363-34761 | Proco Operating Co. Inc. only | Palo Pinto, TXPalo Pinto Co. Reg. (Gas) | PluggedGas | 5,500 | Jun 20, 2001 | — | — |
| Collins P. H. Unit #1742-363-34968 | Proco Operating Co. Inc. only | Palo Pinto, TXBartons Chapel S. (Strawn 3200) | PluggedGas | 4,999 | Oct 3, 2000 | — | — |
| Collins P. H. Unit #1642-363-34969 | Proco Operating Co. Inc. only | Palo Pinto, TXNorthridge (Atoka Congl.) | PluggedGas | 4,999 | Oct 3, 2000 | — | — |
| Collins P. H. Unit #542-363-34950 | Proco Operating Co. Inc. only | Palo Pinto, TXNorthridge (Atoka Congl.) | PluggedGas | 5,200 | Aug 8, 2000 | — | — |
| Yates L. H. B #142-237-05758 | Proco Operating Co. Inc. only | Jack, TXJoplin SW. (Strawn) | PluggedGas | 5,644 | Jul 12, 2000 | — | — |
| Tri State Leasing Corp. #142-363-34843 | Proco Operating Co. Inc. only | Palo Pinto, TXGraford N. (Strawn) | PluggedGas | 4,800 | Mar 29, 2000 | — | — |
| Collins P. H. Unit #242-363-33886 | Proco Operating Co. Inc. only | Palo Pinto, TXBartons Chapel S.(strawn 3100) | PluggedGas | 4,900 | Mar 8, 2000 | — | — |
| Clayton C. P. #242-363-32972 | Proco Operating Co. Inc. only | Palo Pinto, TXGraford (Caddo Congl.) | Temporarily abandonedGas | 4,770 | Sep 29, 1999 | — | — |
| McAvoy Martha #242-363-34511 | Proco Operating Co. Inc. only | Palo Pinto, TXGraford N. (Strawn) | PluggedGas | 4,999 | Sep 3, 1998 | — | — |
| McAvoy Martha #142-363-34773 | Proco Operating Co. Inc. only | Palo Pinto, TXBartons Chapel S. (Strawn 3200) | PluggedGas | 3,700 | Jun 15, 1998 | — | — |
| P. H. Collins Unit #1442-363-34438 | Proco Operating Co. Inc. only | Palo Pinto, TXWagnon (Strawn Granny Sd.) | PluggedOil | 1,999 | Jul 6, 1995 | — | — |
| P. H. Collins Unit #1542-363-34439 | Proco Operating Co. Inc. only | Palo Pinto, TXWagnon (Strawn Granny Sd.) | PluggedOil | 1,999 | Jul 6, 1995 | — | — |
| P. H. Collins Unit #1242-363-34431 | Proco Operating Co. Inc. only | Palo Pinto, TXWagnon (Strawn Granny Sd.) | PluggedOil | 1,999 | Jun 22, 1995 | — | — |