| McCarthy Family Trust 97 #242-071-32311 | C & E Operating Inc. | Chambers, TXSeabreeze (Marg. 7 FB B) | PluggedGas | 12,500 | May 16, 2019 | — | — |
| Miller a #142-089-32653 | C & E Operating Inc. | Colorado, TXFondren Ranch (Wilcox 8600) | PluggedGas | 12,000 | Dec 31, 2018 | — | — |
| Rinne #142-089-32726 | C & E Operating Inc. | Colorado, TXAlleyton (Yegua) | PluggedGas | 5,500 | Sep 2, 2015 | — | — |
| Seabreeze Land Co. #342-071-32504 | C & E Operating Inc. | Chambers, TXSeabreeze (Seabreeze C-2) | PluggedGas | 9,500 | Apr 11, 2013 | — | — |
| Seabreeze Land Co. #242-071-32501 | C & E Operating Inc. | Chambers, TXSeabreeze (Seabreeze FB B) | PluggedGas | 9,500 | Apr 4, 2013 | — | — |
| Zbranek #142-089-32661 | C & E Operating Inc. | Colorado, TXCaballo (Frio) | PluggedGas | 3,200 | May 19, 2011 | — | — |
| Moeller #242-089-32662 | C & E Operating Inc. | Colorado, TXRock Island (Mio. 2425) | PluggedGas | 3,000 | May 19, 2011 | — | — |
| Stodola #142-089-32660 | C & E Operating Inc. | Colorado, TXRock Island (Mio. 2425) | PluggedGas | 3,000 | May 18, 2011 | — | — |
| Failla #142-089-32654 | C & E Operating Inc. | Colorado, TXFondren Ranch (Yegua 4350) | PluggedGas | 5,000 | Feb 16, 2011 | — | — |
| Heffley #242-089-32649 | C & E Operating Inc. | Colorado, TXCaballo (Prairie Bell) | PluggedGas | 13,000 | Dec 8, 2010 | — | — |
| Joe Potter a #142-089-32648 | C & E Operating Inc. | Colorado, TXCaballo (Frio) | PluggedGas | 4,000 | Nov 24, 2010 | — | — |
| Butler #142-089-32647 | C & E Operating Inc. | Colorado, TXGlasscock (Cockfield) | PluggedGas | 5,000 | Nov 23, 2010 | — | — |
| Hill #142-089-32642 | C & E Operating Inc. | Colorado, TXGlasscock (Cockfield) | PluggedOil | 5,000 | Sep 22, 2010 | — | — |
| Rutta #142-089-32640 | C & E Operating Inc. | Colorado, TXCaballo (Frio) | PluggedGas | 3,500 | Sep 14, 2010 | — | — |
| Wegenhoft #142-089-32632 | C & E Operating Inc. | Colorado, TXGlasscock (Cockfield) | PluggedGas | 5,000 | Jun 25, 2010 | — | — |
| Kleimann #342-089-32624 | C & E Operating Inc. | Colorado, TXRock Island (Mio. 2425) | PluggedGas | 4,000 | Apr 12, 2010 | — | — |
| Moeller #142-089-32610 | C & E Operating Inc. | Colorado, TXCrasco (Frio) | PluggedGas | 6,000 | Jul 1, 2009 | — | — |
| Moeller B #142-089-32573 | C & E Operating Inc. | Colorado, TXCrasco (Frio) | PluggedGas | 3,100 | May 1, 2008 | — | — |
| Foester #142-057-31656 | C & E Operating Inc. | Calhoun, TXMagnolia Beach (9300) | PluggedGas | 11,000 | Mar 6, 2008 | — | — |
| Foester #342-057-31766 | C & E Operating Inc. | Calhoun, TXMagnolia Beach (9300) | PluggedGas | 10,000 | Feb 8, 2008 | — | — |
| Glasscock a #142-089-32559 | C & E Operating Inc. | Colorado, TXGlasscock (Cockfield) | PluggedGas | 5,500 | Jan 23, 2008 | — | — |
| Benoit #142-089-32557 | C & E Operating Inc. | Colorado, TXRock Island (Mio. 2425) | PluggedGas | 3,100 | Jan 15, 2008 | — | — |
| Kleimann #142-089-32558 | C & E Operating Inc. | Colorado, TXRock Island (Frio 3420) | PluggedGas | 4,000 | Jan 15, 2008 | — | — |
| Kaindl #242-057-31748 | C & E Operating Inc. | Calhoun, TXMagnolia Beach (1960) | PluggedGas | 2,000 | Aug 16, 2007 | — | — |
| Kaindl #142-057-31747 | C & E Operating Inc. | Calhoun, TXMag. Beach-Kellers Bay (Melb.) | PluggedGas | 3,000 | Aug 15, 2007 | — | — |
| Rosen #142-057-31746 | C & E Operating Inc. | Calhoun, TXMagnolia Beach (1960) | PluggedGas | 3,000 | Aug 14, 2007 | — | — |
| Parks-Gunn #142-089-32513 | C & E Operating Inc. | Colorado, TXAltair NW. (3300) | PluggedGas | 5,000 | Dec 11, 2006 | — | — |
| Heffley-Moeller #142-089-32514 | C & E Operating Inc. | Colorado, TXGinther (5000) | PluggedGas | 6,000 | Dec 11, 2006 | — | — |
| Miekow #142-089-32503 | C & E Operating Inc. | Colorado, TXGinther (2840) | PluggedGas | 5,000 | Nov 28, 2006 | — | — |
| Moeller a #142-089-32504 | C & E Operating Inc. | Colorado, TXCrasco (Frio) | PluggedGas | 5,000 | Nov 28, 2006 | — | — |
| Stehling-Moeller #142-089-32505 | C & E Operating Inc. | Colorado, TXSharron (Frio Hlavinka) | PluggedGas | 5,000 | Nov 28, 2006 | — | — |
| Glasscock Ranch #142-089-32492 | C & E Operating Inc. | Colorado, TXPrairie Bell (11000) | PluggedGas | 13,000 | Jul 12, 2006 | — | — |
| Moore #142-239-33377 | C & E Operating Inc. | Jackson, TXMorales North (Wilcox) | PluggedGas | 13,000 | May 17, 2006 | — | — |
| Turkey Creek Farms #142-481-34828 | C & E Operating Inc. | Wharton, TXWharco-Schilling (10 000 Cons.) | PluggedGas | 12,000 | Feb 24, 2006 | — | — |
| Alexander #142-057-31696 | C & E Operating Inc. | Calhoun, TXLobue (Discorbis D) | PluggedGas | 11,000 | Jan 23, 2006 | — | — |
| Jennings-Scott G. U. #142-057-31713 | C & E Operating Inc. | Calhoun, TXColoma Creek North (8300) | PluggedGas | 11,000 | Dec 6, 2005 | — | — |
| Melcher #542-057-31709 | C & E Operating Inc. | Calhoun, TXLobue (Discorbis D) | PluggedGas | 13,000 | Nov 2, 2005 | — | — |
| B. P. America K #142-199-32979 | C & E Operating Inc. | Hardin, TXHampton South (Yegua E-4) | PluggedGas | 8,500 | Jul 27, 2005 | — | — |
| Tigner #142-057-31700 | C & E Operating Inc. | Calhoun, TXColoma Creek North (9100 Sand) | PluggedGas | 11,000 | May 24, 2005 | — | — |
| Alexander #242-057-31697 | C & E Operating Inc. | Calhoun, TXLobue (Discorbis D) | PluggedGas | 11,000 | Apr 26, 2005 | — | — |
| Williams #242-057-31695 | C & E Operating Inc. | Calhoun, TXGeorge Duncan (Melbourne K-1) | PluggedGas | 8,900 | Apr 4, 2005 | — | — |
| McCarthy Family Trust 97 #142-071-32289 | C & E Operating Inc. | Chambers, TXSeabreeze N. (Marg 7) | PluggedGas | 9,300 | Jan 21, 2005 | — | — |
| Foester #242-057-31686 | C & E Operating Inc. | Calhoun, TXMagnolia Beach (9300) | PluggedGas | 11,000 | Dec 8, 2004 | — | — |
| Melcher #242-057-31684 | C & E Operating Inc. | Calhoun, TXLobue (Discorbis D) | PluggedGas | 11,000 | Nov 10, 2004 | — | — |
| Welder-Terrell #642-391-32641 | C & E Operating Inc. | Refugio, TXDevil S Run (5250) | PluggedGas | 6,500 | Nov 5, 2004 | — | — |
| B. P. America D #142-199-32942 | C & E Operating Inc. | Hardin, TXSilsbee | PluggedGas | 4,500 | Oct 27, 2004 | — | — |
| Tullis #142-297-34579 | C & E Operating Inc. | Live Oak, TXGeorge West W (6400) | PluggedGas | 7,000 | Jul 23, 2004 | — | — |
| Murphy #142-249-32454 | C & E Operating Inc. | Jim Wells, TXSan Diego East (5300) | PluggedGas | 6,000 | Mar 22, 2004 | — | — |
| Melcher #142-057-31671 | C & E Operating Inc. | Calhoun, TXColoma Creek North (9100 Sand) | PluggedGas | 11,000 | Mar 3, 2004 | — | — |
| Hahn #442-057-31670 | C & E Operating Inc. | Calhoun, TXLong Mott (Marg) | PluggedGas | 8,000 | Mar 1, 2004 | — | — |