42-079-30984
Final CompletionMASTEN A
COCHRAN County · District 8 · UNION OIL COMPANY OF CALIFORNIA · LEVELLAND
Permits
1
Max Depth
5,000 ft
First Permit
1978-09-08
Latest Activity
1978-09-08
Lifespan
< 1 yr
Regulatory Status
Schedule
OFF SCHEDULE
Completion
1979-07-12
Shut-In
—
Plugged
—
EWA / Production operator mismatch
Scheduling: UNION OIL COMPANY OF CALIFORNIA ≠ Production: TALIS ENERGY INC. (reported 2026-03)
Resolved via: production → TALIS ENERGY INC.
Production Summary Production data is a work in progress — still being validated against RRC filings. Spot something off or have questions? [email protected]
Cum Oil
— bbl
Cum Gas
— mcf
First Production
1993-01
Last Production
2026-07
Operator History
Chain of Custody
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.
Perforations (1)
| Interval | Type |
|---|---|
| 4,909–4,942 ft | Perforated |
Casing (3)
| Size | Set Depth | Cement |
|---|---|---|
| 8.625" | 409 ft | 225 sx |
| 2.375" | 4,946 ft | — |
| 5.5" | 4,952 ft | 1,000 sx |
Permit History (1)
Applications (1)
Records & Logs
2 completion filings on record.
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
Well Details
- Well Number
- 16
- Max Depth
- 5,000 ft
- Drill Type
- Vertical
- County
- COCHRAN
- District
- 8
- Operator
- UNION OIL COMPANY OF CALIFORNIA
- Completed
- 1979-07-12
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