42-003-37245
Final CompletionDOLLARHIDE UNIT
ANDREWS County · District 8 · UNION OIL COMPANY OF CALIFORNIA
Permits
2
Max Depth
8,450 ft
First Permit
1986-02-05
Latest Activity
1993-05-05
Lifespan
7 yrs
Regulatory Status
Schedule
OFF SCHEDULE
Completion
—
Shut-In
—
Plugged
—
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 (3) Elevation 3,146 ft (GL)
CSV| Formation | Top Depth (MD) | Subsea (+above / −below SL) |
|---|---|---|
| YATES | 2,748 ft | +398 ft |
| CLEARFORK (Clear Fork) | 5,632 ft | -2,486 ft |
| DEVONIAN | 8,058 ft | -4,912 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)
| Interval | Type |
|---|---|
| 8,062–8,260 ft | Perforated |
Casing (2)
| Size | Set Depth | Cement |
|---|---|---|
| 8.625" | 1,210 ft | 650 sx |
| 5.5" | 8,370 ft | 700 sx |
Permit History (2)
Applications (2)
Records & Logs
2 completion filings on record · 1 with log images at RRC.
Completion packets open directly (post-2011 filings include attached logs). Log images and the UL library can't be deep-linked — clicking copies the API for you to paste.
No GPS coordinates yet
Well Details
- Well Number
- 4379D
- Max Depth
- 8,450 ft
- Drill Type
- Vertical
- County
- ANDREWS
- 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