| P.W.L.R. #1042-057-31720 | Royal Production Company Inc. | CalhounGuajolote Suerte (5750) | ActiveInjection | 4,600 | Mar 24, 2006 | 1 | Aug 2026 |
| Servando Benavides #142-479-38974 | Royal Production Company Inc. | WebbWildcat | PluggedGas | 13,400 | Jan 11, 2005 | 1 | — |
| Casso Gas Unit #342-215-33243 | Royal Production Company Inc. | HidalgoEdinburg S. (Marks 11030) | PluggedGas | 15,500 | Aug 11, 2004 | 2 | Aug 2006 |
| Cable Gas Unit #242-409-32759 | Royal Production Company Inc. | San PatricioPortland N. (Commonwealth Serie | PluggedGas | 12,200 | Jun 14, 2004 | 2 | Aug 2007 |
| State Tract 15 #142-355-30698 | Royal Production Company Inc. | NuecesCorpus Channel NW (Frio G-1) | PluggedGas | 10,640 | Oct 21, 2003 | 3 | Jul 2011 |
| P.W.L.R. #342-057-31642 | Royal Production Company Inc. | CalhounGuajolote Suerte (5750) | PluggedOil | 7,658 | Mar 6, 2003 | 1 | Aug 2026 |
| BP Chemicals #242-057-31639 | Royal Production Company Inc. | CalhounGuajolote Suerte (5750) | PluggedOil | 7,000 | Feb 27, 2003 | 1 | Aug 2026 |
| Cable-Garrett #142-409-32721 | Royal Production Company Inc. | San PatricioPortland N. (Commonwealth Serie | PluggedGas | 11,370 | Nov 22, 2002 | 2 | Jan 2019 |
| P.W.L.R. #242-057-31633 | Royal Production Company Inc. | CalhounGuajolote Suerte (5750) | ActiveOil | 5,907 | Sep 5, 2002 | 1 | Aug 2026 |
| Holman Cartwright C #842-297-32748 | Royal Production Company Inc. | Live OakMount Lucas (1950) | PluggedGas | 5,000 | Jul 12, 2002 | 5 | Dec 2012 |
| Cartwright Holman #11442-297-34468 | Royal Production Company Inc. | Live OakMount Lucas (1350) | PluggedGas | 2,160 | Jul 8, 2002 | 1 | Dec 2012 |
| BP Chemicals #142-057-31622 | Royal Production Company Inc. | CalhounGuajolote Suerte (5750) | ActiveOil | 6,040 | Mar 5, 2002 | 1 | Aug 2026 |
| P.W.L.R. #142-057-31621 | Royal Production Company Inc. | CalhounGuajolote Suerte (5750) | ActiveOil | 6,900 | Feb 6, 2002 | 1 | Aug 2026 |
| Cartwright Holman #10142-297-33191 | Royal Production Company Inc. | Live OakMount Lucas (1500) | PluggedGas | 4,800 | Jul 6, 2001 | 4 | May 2012 |
| Guaranty Title & Trust #242-355-32644 | Royal Production Company Inc. | NuecesCorpus Christi West ( 8630) | PluggedGas | 10,300 | Oct 8, 1999 | 5 | May 1999 |
| Guaranty Title & Trust #3 C42-355-33061 | Royal Production Company Inc. | NuecesSaxet Deep (7400 FB B) | PluggedGas | 10,500 | Aug 4, 1998 | 3 | Feb 1999 |
| Cartwright Holman #9142-297-01760 | Royal Production Company Inc. | Live OakMount Lucas (1700) | PluggedGas | 5,902 | Jul 7, 1998 | 4 | Sep 2010 |
| Borchers Estate #342-285-30233 | Royal Production Company Inc. | LavacaWildcat | PluggedGas | 3,665 | Jan 28, 1998 | 3 | — |
| London #142-409-30464 | Royal Production Company Inc. | San PatricioPortland N.(la Farge B) | PluggedGas | 11,500 | Jul 18, 1997 | 2 | Jan 1996 |
| Talbert #342-355-31516 | Royal Production Company Inc. | NuecesCorpus Christi West (9700) | PluggedGas | 14,700 | Jan 22, 1997 | 5 | Nov 1998 |
| Cartwright Holman #11042-297-33578 | Royal Production Company Inc. | Live OakHolman (Hockley 1ST) | PluggedGas | 5,000 | Dec 19, 1996 | 3 | Dec 2012 |
| Crites/ McCord Unit #142-409-32495 | Royal Production Company Inc. | San PatricioMidway S. (Dubose) | PluggedOil | 9,800 | Feb 9, 1996 | 1 | Jun 2001 |
| Casso et al Gas Unit #242-215-32270 | Royal Production Company Inc. | HidalgoEdinburg S. (Marks 11030) | PluggedGas | 12,750 | Oct 17, 1995 | 2 | Jul 2009 |
| Vastar-Elliott #142-199-32715 | Royal Production Company Inc. | HardinElliott N. (3850 Frio) | PluggedGas | 8,000 | Oct 16, 1995 | 1 | Sep 1998 |
| Edinburg Unit #942-215-01874 | Royal Production Company Inc. | HidalgoEdinburg (9950 FB-B) | PluggedGas | 12,560 | Mar 23, 1995 | 1 | Jan 1998 |
| State Tract 9 #142-355-32392 | Royal Production Company Inc. | NuecesCorpus Channel NW. (M-1) | PluggedOil | 11,300 | Nov 3, 1994 | 2 | Sep 1999 |
| Hankamer # 1037 #1A42-351-30615 | Royal Production Company Inc. | NewtonCamptown | PluggedOil | 11,800 | Oct 10, 1994 | 1 | Jan 1995 |
| Crites Gas Unit #142-409-30645 | Royal Production Company Inc. | San PatricioMidway S. (McKamey) | PluggedGas | 14,600 | Jan 28, 1994 | 4 | Oct 1994 |
| Simons Gas Unit -a- #442-409-30607 | Royal Production Company Inc. | San PatricioPortland N. (Commonwealth Serie | PluggedGas | 10,300 | Jan 21, 1994 | 1 | Jan 1994 |
| Borchers Estate #942-285-30470 | Royal Production Company Inc. | LavacaBorchers South (1300) | PluggedGas | 3,588 | Aug 31, 1993 | 3 | Jan 1998 |
| Cage Ranch #142-047-31617 | Royal Production Company Inc. | BrooksCage Ranch (7200) | PluggedGas | 10,500 | Aug 25, 1993 | 2 | Aug 2004 |
| Eastside Block Unit #1742-355-32838 | Royal Production Company Inc. | NuecesAgua Dulce (Consolidated Frio) | PluggedGas | 8,000 | Jan 7, 1991 | 2 | — |
| Hinnant William #542-297-33884 | Royal Production Company Inc. | Live OakBrian B. (Upper Discorbis) | PluggedGas | 5,300 | Aug 11, 1989 | 3 | Apr 2010 |
| Hinnant W. #342-297-33838 | Royal Production Company Inc. | Live OakHinnant (2200) | PluggedGas | 2,300 | Jul 19, 1988 | 1 | Mar 2010 |
| Hinnant W. #242-297-33812 | Royal Production Company Inc. | Live OakHinnant (Miocene 1660) | PluggedGas | 2,315 | Feb 25, 1988 | 1 | Mar 2010 |
| Hinnant W. -a- #142-297-33761 | Royal Production Company Inc. | Live OakHinnant (2040) | PluggedGas | 5,950 | Jun 9, 1987 | 1 | Mar 2010 |
| Hinnant W. #142-297-33739 | Royal Production Company Inc. | Live OakHinnant (2040) | PluggedGas | 5,950 | Mar 3, 1987 | 2 | Apr 2010 |
| Simons Gas Unit -a- #242-409-30387 | Royal Production Company Inc. | San PatricioPortland N. (Commonwealth Serie | PluggedGas | 10,800 | Aug 14, 1985 | 2 | — |
| Borchers Estate #1242-285-30572 | Royal Production Company Inc. | LavacaBorchers South (1300) | PluggedGas | 3,575 | Mar 14, 1983 | 1 | Jan 1996 |
| London (S.W.D.) #542-409-31705 | Royal Production Company Inc. | San PatricioPortland N. (Commonwealth Serie | PluggedGas | 4,850 | Feb 11, 1983 | 1 | — |
| State Tract 9 #542-355-06144 | Royal Production Company Inc. | NuecesCorpus Channel NW. (M-3-B) | PluggedGas | 10,750 | Dec 15, 1982 | 1 | Jun 1995 |
| Borchers Estate #10 C42-285-30481 | Royal Production Company Inc. | LavacaBorchers (1500) | PluggedGas | 3,517 | Sep 29, 1982 | 3 | — |
| Foster Lumber Co. #1D42-407-30005 | Royal Production Company Inc. | San JacintoMercy | PluggedOil | 3,900 | Mar 30, 1982 | 1 | — |
| East Side Block Unit #742-355-04803 | Royal Production Company Inc. | NuecesAgua Dulce (2070) | PluggedGas | 7,050 | Nov 13, 1979 | 2 | — |
| Borchers Estate #642-285-30232 | Royal Production Company Inc. | LavacaBorchers South (1300) | PluggedGas | 1,272 | May 25, 1979 | 1 | — |
| Cartwright Holman -a- #2D42-297-01721 | Royal Production Company Inc. | Live OakMount Lucas (1200) | PluggedGas | — | — | 0 | — |
| Cartwright Holman #442-297-01729 | Royal Production Company Inc. | Live OakMount Lucas (2100) | ActiveGas | 2,145 | — | 0 | — |
| Cartwright Holman #2 L42-297-01756 | Royal Production Company Inc. | Live OakMount Lucas (2600) | PluggedGas | — | — | 0 | — |
| Cartwright Holman -C- #4 D42-297-01761 | Royal Production Company Inc. | Live OakMt. Lucas (Vicksburg 3600) | PluggedGas | — | — | 0 | — |
| McCoy Zula #842-355-04809 | Royal Production Company Inc. | NuecesAgua Dulce (Sellers Up.) | PluggedOil | — | — | 0 | — |