42-211-32780
Final CompletionBOURASSA -B-
HEMPHILL County · District 10 · UNIT PETROLEUM COMPANY · BUFFALO WALLOW (GRANITE WASH)
Permits
1
Max Depth
12,000 ft
First Permit
2003-06-05
Latest Activity
2003-06-05
Lifespan
< 1 yr
Regulatory Status
Schedule
OFF SCHEDULE
Completion
2004-02-19
Shut-In
—
Plugged
2022-10-31
EWA / Permit operator mismatch
Scheduling: UNIT PETROLEUM COMPANY ≠ Permit: PATINA OIL & GAS CORPORATION
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
2004-02
Last Production
2023-03
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 2,684 ft (GR)
CSV| Formation | Top Depth (MD) | Subsea (+above / −below SL) |
|---|---|---|
| OSWEGO LM (Oswego) | 10,742 ft | -8,058 ft |
| GRANITE WASH A1 (Granite Wash) | 11,004 ft | -8,320 ft |
| GRANITE WASH A (Granite Wash) | 11,250 ft | -8,566 ft |
| GRANITE WASH B (Granite Wash) | 11,339 ft | -8,655 ft |
| GRANITE WASH C (Granite Wash) | 11,626 ft | -8,942 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 (2)
| Interval | Type |
|---|---|
| 11,085–11,267 ft | Perforated |
| 11,387–11,557 ft | Perforated |
Casing (2)
| Size | Set Depth | Cement |
|---|---|---|
| 8.625" | 3,195 ft | 1,575 sx |
| 4.5" | 11,880 ft | 500 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
- 4311P
- Max Depth
- 12,000 ft
- Drill Type
- Vertical
- County
- HEMPHILL
- District
- 10
- Operator
- UNIT PETROLEUM COMPANY
- Completed
- 2004-02-19
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