42-269-31757
Final CompletionPEN BRANCH (UPPER STRAWN) UNIT
KING County · District 8 · MIOCENE OIL & GAS LTD. · PEN BRANCH (U. STRAWN)
Permits
1
Max Depth
7,000 ft
First Permit
1987-11-16
Latest Activity
1987-11-16
Lifespan
< 1 yr
Regulatory Status
Schedule
OFF SCHEDULE
Completion
1988-01-26
Shut-In
—
Plugged
2019-01-31
EWA / Permit operator mismatch
Scheduling: MIOCENE OIL & GAS LTD. ≠ Permit: CREGO EXPLORATION
Resolved via: scheduling → MIOCENE OIL & GAS LTD.
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
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 1,716 ft (GR)
CSV| Formation | Top Depth (MD) | Subsea (+above / −below SL) |
|---|---|---|
| COLEMAN JUNCTION LS (Coleman Junction) | 2,440 ft | -724 ft |
| STRAWN LS (Strawn) | 5,340 ft | -3,624 ft |
| CADDO LS (Caddo) | 5,880 ft | -4,164 ft |
| MISSISSIPPIAN LS (Mississippian) | 6,040 ft | -4,324 ft |
| CAMBRIAN SS | 6,320 ft | -4,604 ft |
| GRANITE | 6,650 ft | -4,934 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 |
|---|---|
| 6,518–6,638 ft | Perforated |
Casing (2)
| Size | Set Depth | Cement |
|---|---|---|
| 8.625" | 220 ft | 175 sx |
| 5.5" | 6,664 ft | 1,325 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
- 8
- Max Depth
- 7,000 ft
- Drill Type
- Vertical
- County
- KING
- District
- 8
- Operator
- MIOCENE OIL & GAS LTD.
- Completed
- 1988-01-26
Operator
- Location
- ENGLEWOOD
- P-5 Status
- Delinquent (filed 2025-05-29)
- Cum Oil (all leases)
- 313,461 bbl
- Cum Gas (all leases)
- — mcf
- Activities
- OPRS/O