42-371-34500
Final CompletionFORT STOCKTON UNIT
PECOS County · District 8 · CLIFFWOOD PRODUCTION CO. · FORT STOCKTON (YATES LOWER)
Permits
1
Max Depth
3,500 ft
First Permit
1983-08-04
Latest Activity
1983-08-04
Lifespan
< 1 yr
Regulatory Status
Schedule
OFF SCHEDULE
Completion
1983-12-07
Shut-In
—
Plugged
—
EWA / Production operator mismatch
Scheduling: CLIFFWOOD PRODUCTION CO. ≠ Production: DOUBLE BARREL OIL LLC (reported 2026-04)
EWA / Permit operator mismatch
Scheduling: CLIFFWOOD PRODUCTION CO. ≠ Permit: EXXON CORP.
Resolved via: production → DOUBLE BARREL OIL LLC
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
PECOS County disposal market →Permitted Volume
2,000 bbl/d
Max Pressure
1,525 psi
Injection Interval
3,082–3,311 ft
Injected (12mo)
—
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 2,826 ft (DF)
CSV| Formation | Top Depth (MD) | Subsea (+above / −below SL) |
|---|---|---|
| UPPER YATES (Yates) | 2,796 ft | +30 ft |
| LOWER YATES (Yates) | 3,079 ft | -253 ft |
| REEF | 3,313 ft | -487 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 |
|---|---|
| 3,082–3,311 ft | Perforated |
Casing (2)
| Size | Set Depth | Cement |
|---|---|---|
| 10.75" | 560 ft | 345 sx |
| 4.5" | 3,413 ft | 1,105 sx |
Permit History (1)
Applications (1)
Records & Logs
3 completion filings on record.
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
- 509
- Max Depth
- 3,500 ft
- Drill Type
- Vertical
- County
- PECOS
- District
- 8
- Operator
- CLIFFWOOD PRODUCTION CO.
- Completed
- 1983-12-07
Operator
- Name
- CLIFFWOOD PROD CO
- Location
- HOUSTON
- P-5 Status
- Inactive (filed 2000-06-06)
- Cum Oil (all leases)
- 1,987,228 bbl
- Cum Gas (all leases)
- 12,311,014 mcf
- Total Permits
- 24