42-079-30985

MASTEN "A"

COCHRAN County · District 8 · UNION OIL COMPANY OF CALIFORNIA

Permits

2

Max Depth

5,000 ft

First Permit

1978-09-08

Latest Activity

1979-10-25

Lifespan

1 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

H-1 Injection Active UIC #000080557 permitted 1994-07-29

Permitted Volume

385 bbl/d

Max Pressure

2,400 psi

Injection Interval

4,800–5,000 ft

Injected (12mo)

21,018 bbl

Monthly injected volume (bbl, from H-10 filings through 2026-02-01)

Lease Production

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

Formation Tops

No tops on file for this well. Formation tops come from W-2/G-1 completion filings — this well has none yet, which is normal for permits that were never drilled, dry holes plugged without a filing, or wells completed before digital records. Offset-well tops can't be shown either — this well has no surface coordinates on file yet.

Check this well's filings at RRC ↗

Perforations (3)

IntervalType
4,771–4,798 ftPerforated
4,771–4,907 ftPerforated
4,887–4,907 ftPerforated

Casing (4)

SizeSet DepthCement
8.625"405 ft225 sx
2.375"4,876 ft
2.375"4,894 ft
5.5"4,912 ft1,000 sx

Permit History (2)

Applications (2)

#61918 A UNION OIL COMPANY OF CALIFORNIA
received 1979-10-25
#32136 A UNION OIL COMPANY OF CALIFORNIA
received 1978-09-08

Records & Logs

4 completion filings on record.

W-2/G-1 1994-09-01
W-2/G-1 1979-10-22
W-2/G-1 1979-10-22
W-2/G-1 1978-02-13

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
15
Max Depth
5,000 ft
Drill Type
Vertical
County
COCHRAN
District
8

Operator

Location
MIDLAND
P-5 Status
Inactive (filed 2020-11-18)
Cum Oil (all leases)
78,952,713 bbl
Cum Gas (all leases)
197,557,199 mcf
Total Permits
2,336