SOUTH PENA CREEK UNIT

Oil · District 01 · Lease #10690

Operator: TXCO RESOURCES INC.

Cum Oil

821k BBL

Cum Gas

41k MCF

casinghead

Wells

86

Production

1993-01 — 2026-02

Peak Month

2001-06

Production History

Cum Oil: 820,969 BBL Cum Gas: 41,153 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

4,490 BBL/mo

Di (annual)

10.9%

b-factor

0.2

EUR

586,871 BBL

R-squared

0.748

type

hyperbolic

Operator History (from monthly production reports)

2025-12 — 2026-07 ATLAS OPERATING LLC 8 mo
2019-04 — 2025-11 FLINT OAK ENERGY, LLC 80 mo
2011-09 — 2019-03 ENERGYQUEST II, LLC 91 mo
2010-03 — 2011-08 NEWFIELD EXPLORATION COMPANY 18 mo
2007-07 — 2010-02 TXCO RESOURCES INC. 32 mo
2002-04 — 2007-06 EXPLORATION COMPANY, THE 63 mo
1996-01 — 2002-03 MERIT ENERGY COMPANY 75 mo
1993-01 — 1995-12 CONOCO INC. 36 mo

Wells (86)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
500ATLAS OPERATING LLC23,4102009-10-13
520ATLAS OPERATING LLC14,0002008-07-10
514ATLAS OPERATING LLC14,0002008-06-17
527ATLAS OPERATING LLC14,0002008-06-16
521ATLAS OPERATING LLC14,0002008-06-13
507ATLAS OPERATING LLC14,0002008-06-10
501ATLAS OPERATING LLC13,4002006-07-20
502ATLAS OPERATING LLC13,4002006-07-20
506ATLAS OPERATING LLC13,4002006-07-20
505ATLAS OPERATING LLC13,6002006-06-27
510ATLAS OPERATING LLC13,6002006-06-16
417ATLAS OPERATING LLC13,6002006-04-25
437ATLAS OPERATING LLC23,6002006-04-25
474ATLAS OPERATING LLC13,3002005-07-01
473ATLAS OPERATING LLC13,6002003-02-13
470ATLAS OPERATING LLC13,6002003-02-10
471ATLAS OPERATING LLC13,6002003-01-23
472ATLAS OPERATING LLC13,6002003-01-23
498ATLAS OPERATING LLC13,4002001-09-24
499ATLAS OPERATING LLC13,4002001-09-24
443ATLAS OPERATING LLC13,2752001-08-02
442ATLAS OPERATING LLC13,2802001-06-08
497ATLAS OPERATING LLC33,4002001-04-27
495ATLAS OPERATING LLC13,3002001-03-13
496ATLAS OPERATING LLC13,3002001-03-13
465ATLAS OPERATING LLC13,3751994-12-19
435ATLAS OPERATING LLC33,6001994-06-08
489ATLAS OPERATING LLC13,5001991-07-16
490ATLAS OPERATING LLC13,5001991-07-16
491ATLAS OPERATING LLC13,5001991-07-16
492ATLAS OPERATING LLC13,5001991-05-29
493ATLAS OPERATING LLC13,5001991-05-29
494ATLAS OPERATING LLC13,5001991-05-29
408ATLAS OPERATING LLC13,7001985-11-21
434ATLAS OPERATING LLC13,7001985-11-21
453ATLAS OPERATING LLC13,7001985-11-21
469ATLAS OPERATING LLC13,7001985-11-21
436ATLAS OPERATING LLC13,6001985-11-18
468ATLAS OPERATING LLC13,3351983-12-01
40242-127-30664ATLAS OPERATING LLC------
40342-127-30771ATLAS OPERATING LLC------
40442-127-30794ATLAS OPERATING LLC------
40542-127-30833ATLAS OPERATING LLC------
40642-127-30874ATLAS OPERATING LLC------
40742-127-30873ATLAS OPERATING LLC------
41142-127-30582ATLAS OPERATING LLC------
41242-127-30615ATLAS OPERATING LLC------
41342-127-30624ATLAS OPERATING LLC------
41442-127-30635ATLAS OPERATING LLC------
41542-127-30636ATLAS OPERATING LLC------
41642-127-30644ATLAS OPERATING LLC------
42142-127-30480ATLAS OPERATING LLC------
42242-127-30481ATLAS OPERATING LLC------
42342-127-30491ATLAS OPERATING LLC------
42442-127-30514ATLAS OPERATING LLC------
42542-127-30525ATLAS OPERATING LLC------
42642-127-30538ATLAS OPERATING LLC------
42742-127-30542ATLAS OPERATING LLC------
42842-127-30551ATLAS OPERATING LLC------
42942-127-30579ATLAS OPERATING LLC------
43042-127-30567ATLAS OPERATING LLC------
43142-127-30580ATLAS OPERATING LLC------
43242-127-30591ATLAS OPERATING LLC------
43342-127-30584ATLAS OPERATING LLC------
44142-127-30440ATLAS OPERATING LLC------
44542-127-30633ATLAS OPERATING LLC------
44642-127-30553ATLAS OPERATING LLC------
44742-127-30712ATLAS OPERATING LLC------
44842-127-30732ATLAS OPERATING LLC------
44942-127-30755ATLAS OPERATING LLC------
45042-127-30754ATLAS OPERATING LLC------
45142-127-30799ATLAS OPERATING LLC------
45242-127-30889ATLAS OPERATING LLC------
46142-127-30478ATLAS OPERATING LLC------
46242-127-30490ATLAS OPERATING LLC------
46342-127-30496ATLAS OPERATING LLC------
46442-127-30497ATLAS OPERATING LLC------
46642-127-30571ATLAS OPERATING LLC------
46742-127-30592ATLAS OPERATING LLC------
48142-127-30457ATLAS OPERATING LLC------
48242-127-30495ATLAS OPERATING LLC------
48342-127-30494ATLAS OPERATING LLC------
48442-127-30528ATLAS OPERATING LLC------
48542-127-30541ATLAS OPERATING LLC------
48642-127-30552ATLAS OPERATING LLC------
48842-127-30587ATLAS OPERATING LLC------