| Lyne T. J. #1342-297-32677 | Arco Oil & Gas Co. | Live Oak, TXClay West North (Wilcox Lower) | PluggedGas | 12,000 | Mar 18, 1981 | — | — |
| State 407 #242-355-02621 | Arco Oil & Gas Co. | Nueces, TXMustang Island (11 Sand) | PluggedOil | 7,905 | Feb 27, 1981 | — | — |
| State Nueces Bay TR 694 #242-355-31703 | Arco Oil & Gas Co. | Nueces, TXNueces Bay (3900) | PluggedGas | 4,100 | Jan 15, 1981 | — | — |
| George Foundation #242-157-31161 | Arco Oil & Gas Co. | Fort Bend, TXBooth (Yegua 10500) | PluggedGas | 19,071 | Dec 23, 1980 | — | — |
| Sorenson #342-295-30908 | Arco Oil & Gas Co. | Lipscomb, TXKiowa Creek N.(morrow Up. Oil) | PluggedOil | 8,900 | Nov 13, 1980 | — | — |
| Neal Roxie -51- #342-371-33197 | Arco Oil & Gas Co. | Pecos, TXCoyanosa N. (Delaware) | PluggedOil | 4,900 | Sep 30, 1980 | — | — |
| State Tract 121 #342-007-00359 | Arco Oil & Gas Co. | Aransas, TXHalf Moon Reef (4110) | PluggedGas | 5,649 | Jul 24, 1980 | — | — |
| Campbell M. E. #242-311-01799 | Arco Oil & Gas Co. | McMullen, TXHagist Ranch (Wilcox E) | PluggedGas | 7,865 | Jul 24, 1980 | — | — |
| Hutchins Louise #242-321-00710 | Arco Oil & Gas Co. | Matagorda, TXOld Ocean (Armstrong) | PluggedOil | 10,200 | Jul 23, 1980 | — | — |
| State 438 Gas Unit #342-355-30589 | Arco Oil & Gas Co. | Nueces, TXRed Fish Bay-Mus. IS (Common 10) | PluggedGas | 7,300 | Jul 21, 1980 | — | — |
| Arco University -a- #142-103-32324 | Arco Oil & Gas Co. | Crane, TXBlock 31 East (Devonian) | PluggedOil | 9,800 | Jul 7, 1980 | — | — |
| State 406 Gas Unit #342-355-02614 | Arco Oil & Gas Co. | Nueces, TXRed Fish Bay-Mus. IS (Common 10) | PluggedGas | 7,804 | Jun 9, 1980 | — | — |
| Bechtold #142-295-30812 | Arco Oil & Gas Co. | Lipscomb, TXBechthold (Squawbelly) | PluggedGas | 10,200 | May 7, 1980 | — | — |
| Williams Louisa Unit #542-039-31205 | Arco Oil & Gas Co. | Brazoria, TXPledger (Miocene 4800) | PluggedGas | 5,000 | Feb 8, 1980 | — | — |
| Walnut Bend Field Unit No. 1 #15-7742-097-31526 | Arco Oil & Gas Co.permit operator | Cooke, TXWalnut Bend (Winger) | Drilled | 5,760 | Jan 31, 1980 | — | — |
| Arco Foley Estate #142-351-30328 | Arco Oil & Gas Co. | Newton, TXCypress Creek (y- 7) | PluggedGas | 23,000 | Jan 15, 1980 | — | — |
| Deeds Lewis #142-295-30750 | Arco Oil & Gas Co. | Lipscomb, TXKiowa Creek (Atoka) | PluggedOil | 11,000 | Dec 31, 1979 | — | — |
| Paine Sim #342-295-30733 | Arco Oil & Gas Co. | Lipscomb, TXBradford (Cleveland) | PluggedGas | 9,700 | Nov 1, 1979 | — | — |
| Peters a #242-131-33941 | Arco Oil & Gas Co. | Duval, TXPeters (1650) | PluggedGas | 2,200 | Oct 15, 1979 | — | — |
| Obrien J. M. -J- #542-391-31361 | Arco Oil & Gas Co. | Refugio, TXGreta (1250) | PluggedGas | 1,400 | Oct 10, 1979 | — | — |
| Scott J. R. Estate 30 #142-235-31435 | Arco Oil & Gas Co. | Irion, TXSpraberry (Trend Area) | PluggedOil | 6,400 | Oct 3, 1979 | — | — |
| Robbins J.P. #1X42-371-32862 | Arco Oil & Gas Co. | Pecos, TXMonument Draw (Wolfcamp) | PluggedGas | 20,000 | Aug 23, 1979 | — | — |
| Foster J. R. #5342-131-32539 | Arco Oil & Gas Co. | Duval, TXHagist Ranch ( Wilcox Upper) | PluggedGas | 7,526 | Aug 7, 1979 | — | — |
| West T.W. #3142-215-30931 | Arco Oil & Gas Co. | Hidalgo, TXTabasco (O Seg 1) | PluggedGas | 8,250 | Jun 13, 1979 | — | — |
| Worsham-15- #242-389-31044 | Arco Oil & Gas Co. | Reeves, TXScott (Cherry Canyon) | PluggedOil | 6,400 | Jun 13, 1979 | — | — |
| Enix J. B. #142-223-30303 | Arco Oil & Gas Co. | Hopkins, TXWildcat | PluggedOil | 2,200 | May 7, 1979 | — | — |
| Sharman Jessie R. #242-123-30977 | Arco Oil & Gas Co. | De Witt, TXWildcat | PluggedOil | 12,000 | May 1, 1979 | — | — |
| Holt O. B. -H- #142-003-11046 | Arco Oil & Gas Co. | Andrews, TXCowden North | PluggedOil | 9,110 | Apr 17, 1979 | — | — |
| Lyne T.J. #842-297-01215 | Arco Oil & Gas Co. | Live Oak, TXTom Lyne (First Mackhank) | PluggedGas | 11,480 | Apr 10, 1979 | — | — |
| University -212- #442-003-05478 | Arco Oil & Gas Co. | Andrews, TXEmma (Devonian) | PluggedOil | 9,270 | Apr 4, 1979 | — | — |
| Walnut Bend Field Unit No. 2 #156442-097-83506 | Arco Oil & Gas Co. | Cooke, TXWalnut Bend (Atkins) | Not on scheduleOil | 5,546 | Apr 4, 1979 | — | — |
| Arco T. & N.O. Fee #142-241-30313 | Arco Oil & Gas Co. | Jasper, TXWildcat | Not on scheduleOil | 14,723 | Jan 2, 1979 | — | — |
| Peters a #142-131-32941 | Arco Oil & Gas Co. | Duval, TXPeters (1650) | PluggedGas | 2,750 | Dec 7, 1978 | — | — |
| Goldsmith-Cummins /San Andres/ U #21942-135-33089 | Arco Oil & Gas Co. | Ector, TXGoldsmith | PluggedOil | 4,450 | Dec 1, 1978 | — | — |
| Peters W.R. B #242-131-32066 | Arco Oil & Gas Co. | Duval, TXPeters (1650) | PluggedGas | 2,814 | Nov 21, 1978 | — | — |
| McLean Marrs Trust #942-247-30855 | Arco Oil & Gas Co. | Jim Hogg, TXThompsonville NE. (10 000) | PluggedGas | 10,500 | Oct 17, 1978 | — | — |
| Peters W.R. a #342-131-32903 | Arco Oil & Gas Co. | Duval, TXPeters (2245) | PluggedGas | 2,750 | Oct 4, 1978 | — | — |
| Marrs McLean Trust -C- #1142-247-30813 | Arco Oil & Gas Co. | Jim Hogg, TXHolbein (Pettus) | PluggedOil | 3,050 | Aug 8, 1978 | — | — |
| Arco Cushing Fee #142-457-30308 | Arco Oil & Gas Co. | Tyler, TXWildcat | PluggedOil | 22,000 | Mar 29, 1978 | — | — |
| Mustang Island Sand 7-a Unit #290742-355-81236 | Arco Oil & Gas Co. | Nueces, TXMustang Island ( 7-A) | PluggedOil | 7,773 | Mar 24, 1978 | — | — |
| Obrien J. M. -C- #442-391-00993 | Arco Oil & Gas Co. | Refugio, TXGreta (C-2) | PluggedGas | 4,510 | Mar 6, 1978 | — | — |
| Goldsmith-Cummins /San Andres/ U #215W42-135-32896 | Arco Oil & Gas Co. | Ector, TXGoldsmith | PluggedOil | 4,350 | Jan 24, 1978 | — | — |
| Goldsmith-Cummins /San Andres/ U #216W42-135-32897 | Arco Oil & Gas Co. | Ector, TXGoldsmith | PluggedOil | 4,350 | Jan 24, 1978 | — | — |
| Goldsmith-Cummins /San Andres/ U #206W42-135-32880 | Arco Oil & Gas Co. | Ector, TXGoldsmith | PluggedOil | 4,300 | Jan 12, 1978 | — | — |
| Goldsmith-Cummins /San Andres/ U #207W42-135-32881 | Arco Oil & Gas Co. | Ector, TXGoldsmith | PluggedOil | 4,300 | Jan 12, 1978 | — | — |
| Goldsmith-Cummins /San Andres/ U #21442-135-32865 | Arco Oil & Gas Co. | Ector, TXGoldsmith | PluggedOil | 4,300 | Dec 20, 1977 | — | — |
| Foster J. R. #5242-131-32344 | Arco Oil & Gas Co. | Duval, TXHagist Ranch (1420) | PluggedGas | 1,506 | Dec 12, 1977 | — | — |
| State Tract 436 (Sand 9 Unit) #642-355-02807 | Arco Oil & Gas Co. | Nueces, TXMustang Island ( 9 Sand) | PluggedGas | 7,353 | Nov 8, 1977 | — | — |
| Fidelity Trust #742-389-30909 | Arco Oil & Gas Co. | Reeves, TXWaha (Delaware) | PluggedGas | 4,900 | Oct 26, 1977 | — | — |
| Laurel Sergio #342-505-30506 | Arco Oil & Gas Co. | Zapata, TXJ J & J (Wilcox 8800) | PluggedGas | 11,500 | Oct 11, 1977 | — | — |