42-079-30564
MASTEN C
COCHRAN County · District 8 · UNION OIL COMPANY OF CALIFORNIA · LEVELLAND (SAN ANDRES)
Permits
1
Max Depth
4,925 ft
First Permit
1978-01-04
Latest Activity
1978-01-04
Lifespan
< 1 yr
Regulatory Status
Schedule
OFF SCHEDULE
Completion
—
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
Injection / Disposal
Permitted Volume
385 bbl/d
Max Pressure
2,400 psi
Injection Interval
4,800–5,000 ft
Injected (12mo)
19,727 bbl
Monthly injected volume (bbl, from H-10 filings through 2026-02-01)
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 (3)
| Interval | Type |
|---|---|
| 4,746–4,775 ft | Perforated |
| 4,868–4,894 ft | Perforated |
| ?–4,894 ft | Perforated |
Casing (2)
| Size | Set Depth | Cement |
|---|---|---|
| 8.625" | 426 ft | — |
| 5.5" | 4,920 ft | 2,952 sx |
Permit History (1)
Applications (1)
Records & Logs
5 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
- 2
- Max Depth
- 4,925 ft
- Drill Type
- Vertical
- County
- COCHRAN
- District
- 8
- Operator
- UNION OIL COMPANY OF CALIFORNIA
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