42-393-30726
Final CompletionMAHLER
ROBERTS County · District 10 · UNIT PETROLEUM COMPANY · MENDOTA NW. (GRANITE WASH SW.)
Permits
3
Max Depth
10,600 ft
First Permit
1979-08-22
Latest Activity
1985-05-22
Lifespan
6 yrs
Regulatory Status
Schedule
OFF SCHEDULE
Completion
2006-03-03
Shut-In
—
Plugged
2024-09-23
EWA / Permit operator mismatch
Scheduling: UNIT PETROLEUM COMPANY ≠ Permit: AMOCO PRODUCTION COMPANY
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
1993-01
Last Production
2026-07
Operator History
originally filed by AMOCO PRODUCTION COMPANY — asset transferred
Lease Production
Production is reported at the lease level. View production data, decline curves, and history on the lease page.
Formation Tops (10) Elevation 2,871 ft (GR)
CSV| Formation | Top Depth (MD) | Subsea (+above / −below SL) |
|---|---|---|
| DOUGLAS | 4,062 ft | -1,191 ft |
| TONKAWA | 4,812 ft | -1,941 ft |
| KANSAS CITY | 5,204 ft | -2,333 ft |
| DES MOINES | 6,075 ft | -3,204 ft |
| GRANITE WASH | 6,644 ft | -3,773 ft |
| DOUGLAS | 6,948 ft | -4,077 ft |
| TONKAWA | 7,698 ft | -4,827 ft |
| KANSAS CITY | 8,090 ft | -5,219 ft |
| DES MOINES | 8,961 ft | -6,090 ft |
| GRANITE WASH | 9,530 ft | -6,659 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 (6)
| Interval | Type |
|---|---|
| 7,270–7,280 ft | Perforated |
| 9,822–9,840 ft | Perforated |
| 9,846–9,856 ft | Perforated |
| 10,026–10,038 ft | Perforated |
| 10,042–10,090 ft | Perforated |
| 10,472–10,495 ft | Perforated |
Casing (5)
| Size | Set Depth | Cement |
|---|---|---|
| 8.625" | 1,646 ft | 1,010 sx |
| 8.625" | 1,647 ft | 1,040 sx |
| 2.875" | 7,302 ft | — |
| 2.375" | 10,463 ft | — |
| 5.5" | 10,600 ft | 250 sx |
Permit History (3)
Applications (3)
Records & Logs
5 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
- 4
- Max Depth
- 10,600 ft
- Drill Type
- Vertical
- County
- ROBERTS
- District
- 10
- Operator
- UNIT PETROLEUM COMPANY
- Completed
- 2006-03-03
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