EAST PENA CREEK UNIT

Oil · District 01 · Lease #4317

Operator: TXCO RESOURCES INC.

Cum Oil

500k BBL

Cum Gas

71k MCF

casinghead

Wells

55

Production

1993-01 — 2026-02

Peak Month

1993-06

Production History

Cum Oil: 500,366 BBL Cum Gas: 70,606 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

3,275 BBL/mo

Di (annual)

29.8%

b-factor

1.2

EUR

416,399 BBL

R-squared

0.744

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 (55)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
53ATLAS OPERATING LLC13,6002003-06-19
49ATLAS OPERATING LLC13,6002003-03-11
50ATLAS OPERATING LLC13,6002003-03-11
51ATLAS OPERATING LLC13,6002003-03-11
52ATLAS OPERATING LLC13,6002003-02-21
205ATLAS OPERATING LLC13,5001991-05-30
46ATLAS OPERATING LLC13,5001991-05-29
39ATLAS OPERATING LLC13,8001988-01-11
19ATLAS OPERATING LLC13,4501987-04-20
43ATLAS OPERATING LLC13,8001987-01-07
44ATLAS OPERATING LLC23,8001987-01-07
37ATLAS OPERATING LLC13,8001986-02-18
38ATLAS OPERATING LLC13,8001986-02-18
36ATLAS OPERATING LLC13,8001985-11-27
1042-127-30588ATLAS OPERATING LLC------
10342-127-30520CONOCO INC.------
10442-127-30519CONOCO INC.------
10742-127-30516CONOCO INC.------
10842-127-30515CONOCO INC.------
1142-127-30598ATLAS OPERATING LLC------
1242-127-30602ATLAS OPERATING LLC------
1342-127-30601ATLAS OPERATING LLC------
1442-127-30604ATLAS OPERATING LLC------
1542-127-30611ATLAS OPERATING LLC------
1642-127-30619ATLAS OPERATING LLC------
1742-127-30620ATLAS OPERATING LLC------
1842-127-30625ATLAS OPERATING LLC------
242-127-30402ATLAS OPERATING LLC------
2042-127-30631ATLAS OPERATING LLC------
20142-127-30605CONOCO INC.------
20242-127-30606CONOCO INC.------
20342-127-30607CONOCO INC.------
20442-127-30614CONOCO INC.------
2142-127-30630ATLAS OPERATING LLC------
2242-127-30634ATLAS OPERATING LLC------
2442-127-30690ATLAS OPERATING LLC------
2742-127-30697ATLAS OPERATING LLC------
2842-127-30705ATLAS OPERATING LLC------
2942-127-30703ATLAS OPERATING LLC------
342-127-30406ATLAS OPERATING LLC------
3042-127-30877ATLAS OPERATING LLC------
30142-127-30468ATLAS OPERATING LLC------
30242-127-30467CONOCO INC.------
3142-127-30878ATLAS OPERATING LLC------
3242-127-30879ATLAS OPERATING LLC------
3342-127-30927ATLAS OPERATING LLC------
3442-127-30930ATLAS OPERATING LLC------
3542-127-30931ATLAS OPERATING LLC------
442-127-30568ATLAS OPERATING LLC------
40142-127-30439CONOCO INC.------
542-127-30569ATLAS OPERATING LLC------
642-127-30581ATLAS OPERATING LLC------
742-127-30585ATLAS OPERATING LLC------
842-127-30590ATLAS OPERATING LLC------
942-127-30589ATLAS OPERATING LLC------