42-127-33183

SOUTH PENA CREEK UNIT

DIMMIT County · District 1 · TXCO RESOURCES INC.

Permits

Max Depth

3,410 ft

First Permit

2001-09-24

Latest Activity

2009-10-13

Lifespan

8 yrs

Regulatory Status

Schedule

OFF SCHEDULE

Completion

—

Shut-In

—

Plugged

—

Production Summary

Cum Oil

— bbl

Cum Gas

— mcf

First Production

1993-01

Last Production

2026-07

Injection / Disposal

DIMMIT County disposal market →

H-1 Injection Active UIC #000099757 permitted 2008-10-13

Permitted Volume

350 bbl/d

Max Pressure

1,452 psi

Injection Interval

2,903–3,410 ft

Injected (12mo)

—

Monthly injected volume (bbl, from H-10 filings through 2025-03-01)

Operator History

Chain of Custody

CONOCO INC. 1993-1995→ MERIT ENERGY COMPANY 1996-2002→ EXPLORATION COMPANY, THE 2002-2007→ TXCO RESOURCES INC. 2007-2010→ NEWFIELD EXPLORATION COMPANY 2010-2011→ ENERGYQUEST II, LLC 2011-2019→ FLINT OAK ENERGY, LLC 2019-2025→ ATLAS OPERATING LLC 2025-2026

Lease Production

Production is reported at the lease level. View production data, decline curves, and history on the lease page.

Formation Tops (6) Elevation 655 ft (GR)

CSV

Formation	Top Depth (MD)	Subsea (+above / −below SL)
1ST SAN MIGUEL (San Miguel)	2,584 ft	-1,929 ft
SAN MIGUEL 1ST (San Miguel)	2,584 ft	-1,929 ft
2ND SAN MIGUEL (San Miguel)	2,895 ft	-2,240 ft
SAN MIGUEL 2ND (San Miguel)	2,895 ft	-2,240 ft
3RD SAN MIGUEL (San Miguel)	3,182 ft	-2,527 ft
SAN MIGUEL 3RD (San Miguel)	3,182 ft	-2,527 ft

As reported by operators on W-2/G-1 completion filings (RRC wellbore records). Depths are measured depth; names appear as filed. Subsea = reported elevation − measured depth (negative = below sea level; vertical wellbores only). View filings & logs at RRC ↗

Perforations (1)

Interval	Type
3,184–3,229 ft	Perforated

Casing (2)

Size	Set Depth	Cement
8.625"	603 ft	235 sx
4.5"	3,394 ft	645 sx

Permit History (2)

#686050 Recompletion

SOUTH PENA CREEK UNIT · 3,410 ft

2009-10-13

#513881 Drill Final Completion

SOUTH PENA CREEK UNIT · 3,400 ft

2001-09-24

Spud 2001-10-11

Applications (3)

#686050 A TXCO RESOURCES INC.

received 2009-10-12

#513881 X EXPLORATION COMPANY, THE

received 2004-05-19

#513881 A MERIT ENERGY COMPANY

received 2001-09-24

Records & Logs

5 completion filings on record · 2 with log images at RRC.

W-2/G-1 2010-12-23 log on file

W-2/G-1 2010-08-26

W-2/G-1 2009-10-02

W-2/G-1 2001-11-26 log on file

W-2/G-1 2001-12-04

Completion packets + logs ↗ Wellbore filings ↗

Completion packets open directly (post-2011 filings include attached logs). Log images can't be deep-linked — clicking copies the API for you to paste.

No GPS coordinates yet

Coordinates come from the RRC GIS backfill and usually appear within days of permit issuance. Located in DIMMIT County.

Well Details

Well Number: 500
Max Depth: 3,410 ft
Drill Type: Vertical
County: DIMMIT
District: 1
Operator: TXCO RESOURCES INC.

Operator

Name: TXCO RES INC
Location: SAN ANTONIO
P-5 Status: Inactive (filed 2009-11-02)
Cum Oil (all leases): 2,405,807 bbl
Cum Gas (all leases): 3,187,691 mcf
Total Permits: 201