42-211-31645
Final CompletionYOUNG 66
HEMPHILL County · District 10 · DEVON ENERGY PRODUCTION CO L.P. · HEMPHILL (GRANITE WASH.)
Permits
1
Max Depth
11,100 ft
First Permit
1983-12-06
Latest Activity
1983-12-06
Lifespan
< 1 yr
Regulatory Status
Schedule
OFF SCHEDULE
Completion
1984-03-16
Shut-In
—
Plugged
2012-08-22
EWA / Permit operator mismatch
Scheduling: DEVON ENERGY PRODUCTION CO L.P. ≠ Permit: MCR OIL CORPORATION OF TEXAS
Resolved via: scheduling → DEVON ENERGY PRODUCTION CO L.P.
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
2013-12
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 (6) Elevation 2,669 ft (GL)
CSV| Formation | Top Depth (MD) | Subsea (+above / −below SL) |
|---|---|---|
| DOUGLAS | 7,715 ft | -5,046 ft |
| TONKAWA | 8,480 ft | -5,811 ft |
| KANSAS CITY | 8,892 ft | -6,223 ft |
| OSWEGO | 10,021 ft | -7,352 ft |
| GRANITE WASH A (Granite Wash) | 10,748 ft | -8,079 ft |
| GRANITE WASH B (Granite Wash) | 10,993 ft | -8,324 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 |
|---|---|
| 10,854–11,090 ft | Perforated |
Casing (2)
| Size | Set Depth | Cement |
|---|---|---|
| 8.625" | 2,984 ft | 2,150 sx |
| 5.5" | 11,198 ft | 250 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
- 1666
- Max Depth
- 11,100 ft
- Drill Type
- Vertical
- County
- HEMPHILL
- District
- 10
- Operator
- DEVON ENERGY PRODUCTION CO L.P.
- Completed
- 1984-03-16
Operator
- Location
- OKLAHOMA CI, TY
- P-5 Status
- Active (filed 2025-12-18)
- Cum Oil (all leases)
- 365,943,944 bbl
- Cum Gas (all leases)
- 9,274,880,220 mcf
- Activities
- CSGD/G, CSGD/P, G/PUR, GTHS/C, GTHS/G, GTHS/O, OPRS/G, OPRS/O
- Total Permits
- 9,264