42-439-31571

PRODUCING Horizontal

MCMAHON

TARRANT County · District 9 · FORMENTERA OPERATIONS LLC · NEWARK EAST (BARNETT SHALE)

Permits

1

Max Depth

8,900 ft

First Permit

2006-03-30

Latest Activity

2006-03-30

Lifespan

< 1 yr

Regulatory Status

Schedule

ON SCHEDULE

Completion

2007-06-14

Shut-In

Plugged

P-5 Org Status: X

!

EWA / Permit operator mismatch

Scheduling: FORMENTERA OPERATIONS LLC ≠ Permit: CHIEF OIL & GAS LLC **

Resolved via: productionFORMENTERA OPERATIONS LLC

Production Summary

Cum Oil

bbl

Cum Gas

mcf

First Production

2007-06

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 (3) Elevation 732 ft (GL)

CSV
FormationTop Depth (MD)Subsea (+above / −below SL)
MARBLE FALLS 6,286 ft-5,554 ft
UPPER BARNETT SHALE (Barnett)6,382 ft-5,650 ft
LOWER BARNETT SHALE (Barnett)6,449 ft-5,717 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 (3)

IntervalType
6,905–6,909 ftPerforated
7,335–7,339 ftPerforated
7,765–7,769 ftPerforated

Casing (2)

SizeSet DepthCement
8.625"1,005 ft540 sx
5.5"8,340 ft580 sx

Permit History (1)

Applications (1)

#616735 A CHIEF OIL & GAS LLC **
received 2006-03-30

Records & Logs

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

W-2/G-1 2007-08-06 log on file
W-2/G-1 2007-09-26

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 TARRANT County.

Well Details

Well Number
1H
Max Depth
8,900 ft
Drill Type
Horizontal
County
TARRANT
District
9
Completed
2007-06-14

Operator

Location
AUSTIN
P-5 Status
X (filed 2026-06-11)
Cum Oil (all leases)
7,170,117 bbl
Cum Gas (all leases)
53,235,974 mcf
Activities
CSGD/P, G/PUR, OPRS/G, OPRS/O
Total Permits
72