42-211-33460
Final CompletionWILLIS
HEMPHILL County · District 10 · UNIT PETROLEUM COMPANY · BUFFALO WALLOW (GRANITE WASH)
Permits
1
Max Depth
13,500 ft
First Permit
2005-11-30
Latest Activity
2005-11-30
Lifespan
< 1 yr
Regulatory Status
Schedule
OFF SCHEDULE
Completion
2006-01-27
Shut-In
—
Plugged
2021-10-20
EWA / Permit operator mismatch
Scheduling: UNIT PETROLEUM COMPANY ≠ Permit: NOBLE ENERGY PRODUCTION, INC.
Resolved via: scheduling → UNIT PETROLEUM COMPANY
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
2006-01
Last Production
2021-10
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 (5) Elevation 2,612 ft (GL)
CSV| Formation | Top Depth (MD) | Subsea (+above / −below SL) |
|---|---|---|
| GRANITE WASH A-1 (Granite Wash) | 11,070 ft | -8,458 ft |
| GRANITE WASH A (Granite Wash) | 11,152 ft | -8,540 ft |
| GRANITE WASH B (Granite Wash) | 11,280 ft | -8,668 ft |
| GRANITE WASH C (Granite Wash) | 11,596 ft | -8,984 ft |
| OSWEGO LM (Oswego) | — | — |
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 (2)
| Interval | Type |
|---|---|
| 11,179–11,251 ft | Perforated |
| 11,325–11,519 ft | Perforated |
Casing (2)
| Size | Set Depth | Cement |
|---|---|---|
| 8.625" | 3,200 ft | 1,760 sx |
| 4.5" | 10,663 ft | 340 sx |
Permit History (1)
Applications (1)
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 can't be deep-linked — clicking copies the API for you to paste.
No GPS coordinates yet
Well Details
- Well Number
- 4420P
- Max Depth
- 13,500 ft
- Drill Type
- Vertical
- County
- HEMPHILL
- District
- 10
- Operator
- UNIT PETROLEUM COMPANY
- Completed
- 2006-01-27
Operator
- Name
- UNIT PETRO CO
- Location
- TULSA
- P-5 Status
- Active (filed 2025-01-13)
- Cum Oil (all leases)
- 8,610,362 bbl
- Cum Gas (all leases)
- 788,031,686 mcf
- Activities
- CSGD/P, G/PUR, GTHS/G, OPRS/G, OPRS/O
- Total Permits
- 1,100