42-347-32653

PRODUCING Horizontal

MAST L.B.

NACOGDOCHES County · District 6 · ATLAS OPERATING LLC · LOCO BAYOU (JAMES LIME)

Permits

1

Max Depth

9,500 ft

First Permit

2007-10-12

Latest Activity

2007-10-12

Lifespan

< 1 yr

Regulatory Status

Schedule

ON SCHEDULE

Completion

2008-03-01

Shut-In

Plugged

P-5 Org Status: H

!

EWA / Permit operator mismatch

Scheduling: ATLAS OPERATING LLC ≠ Permit: ST. MARY LAND & EXPLORATION CO.

Resolved via: productionATLAS OPERATING LLC

Production Summary

Cum Oil

bbl

Cum Gas

mcf

First Production

2008-03

Last Production

2026-07

Lease Production

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

Formation Tops (6) Elevation 222 ft

CSV
FormationTop Depth (MD)Subsea (+above / −below SL)
TOP AUSTIN CHALK (Austin Chalk)5,254 ft-5,032 ft
BASE AUSTIN CHALK (Austin Chalk)5,532 ft-5,310 ft
GLEN ROSE 6,904 ft-6,682 ft
BMA 8,553 ft-8,331 ft
BEXAR8,936 ft-8,714 ft
TOP JAMES (James Lime)9,073 ft-8,851 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)

IntervalType
9,712–14,935 ftPerforated

Casing (2)

SizeSet DepthCement
9.625"3,207 ft1,285 sx
7"9,714 ft300 sx

Permit History (1)

Applications (1)

#647369 A ST. MARY LAND & EXPLORATION CO.
received 2007-10-08

Records & Logs

2 completion filings on record · 1 with log images at RRC.

W-2/G-1 2008-04-03 log on file
W-2/G-1 2008-05-23

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 NACOGDOCHES County.

Well Details

Well Number
1H
Max Depth
9,500 ft
Drill Type
Horizontal
District
6
Completed
2008-03-01

Operator

Location
HOUSTON
P-5 Status
H (filed 2026-03-09)
Cum Oil (all leases)
7,184,429 bbl
Cum Gas (all leases)
10,995,911 mcf
Activities
CSGD/G, CSGD/P, G/PUR, GTHS/G, OPRS/G, OPRS/O
Total Permits
78