42-079-32757

NO PRODUCTION

MASTEN UNIT

COCHRAN County · District 8 · TALIS ENERGY INC. · LEVELLAND

Permits

1

Max Depth

5,100 ft

First Permit

1994-01-07

Latest Activity

1994-01-07

Lifespan

< 1 yr

Regulatory Status

Schedule

ON SCHEDULE

Completion

2013-12-17

Shut-In

Plugged

P-5 Org Status: Delinquent

!

EWA / Permit operator mismatch

Scheduling: TALIS ENERGY INC. ≠ Permit: UNION OIL COMPANY OF CALIFORNIA

Resolved via: productionTALIS ENERGY INC.

Production Summary

Cum Oil

bbl

Cum Gas

mcf

First Production

1994-07

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 (4) Elevation 3,834 ft (GL)

CSV
FormationTop Depth (MD)Subsea (+above / −below SL)
YATES 2,885 ft+949 ft
GRAYBERG4,013 ft-179 ft
SAN ANDRES 4,231 ft-397 ft
P.I. MARKER4,631 ft-797 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
4,780–4,936 ftPerforated

Casing (2)

SizeSet DepthCement
8.625"449 ft200 sx
4.5"5,062 ft1,525 sx

Permit History (1)

Applications (1)

#419638 A UNION OIL COMPANY OF CALIFORNIA
received 1993-12-23

Records & Logs

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

W-2/G-1 2014-12-02
W-2/G-1 1994-08-05 log on file
W-2/G-1 1994-08-12

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 COCHRAN County.

Well Details

Well Number
20
Max Depth
5,100 ft
Drill Type
Vertical
County
COCHRAN
District
8
Completed
2013-12-17

Operator

Location
AUSTIN
P-5 Status
Delinquent (filed 2025-06-10)
Cum Oil (all leases)
8,924 bbl
Cum Gas (all leases)
— mcf
Activities
OPRS/G, OPRS/O