42-181-30671
Final CompletionBIG MINERAL CREEK/STRAWNII/UNIT
GRAYSON County · District 9 · VENOCO INC. · BIG MINERAL CREEK (STRAWN II)
Permits
3
Max Depth
6,200 ft
First Permit
1979-04-17
Latest Activity
1988-07-19
Lifespan
9 yrs
Regulatory Status
Schedule
OFF SCHEDULE
Completion
1986-04-28
Shut-In
—
Plugged
—
EWA / Production operator mismatch
Scheduling: VENOCO INC. ≠ Production: FLINTLOCK EXPLORATION, LLC (reported 2026-04)
EWA / Permit operator mismatch
Scheduling: VENOCO INC. ≠ Permit: SHELL WESTERN E&P INC.
Resolved via: production → FLINTLOCK EXPLORATION, LLC
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
Injection / Disposal
Permitted Volume
—
Max Pressure
2,725 psi
Injection Interval
5,485–5,799 ft
Injected (12mo)
—
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 (3) Elevation 687 ft (DF)
CSV| Formation | Top Depth (MD) | Subsea (+above / −below SL) |
|---|---|---|
| STRAWN I (Strawn) | 3,437 ft | -2,750 ft |
| STRAWN II (Strawn) | 3,590 ft | -2,903 ft |
| STRAWN II (Strawn) | 3,738 ft | -3,051 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 (5)
| Interval | Type |
|---|---|
| 3,513–3,543 ft | Perforated |
| 3,513–3,670 ft | Perforated |
| 3,594–3,614 ft | Perforated |
| 5,485–5,799 ft | Perforated |
| 5,485–5,871 ft | Perforated |
Casing (3)
| Size | Set Depth | Cement |
|---|---|---|
| 9.625" | 1,610 ft | 650 sx |
| 2.875" | 5,900 ft | — |
| 7" | 6,200 ft | 1,500 sx |
Permit History (3)
Applications (3)
Records & Logs
12 completion filings on record · 3 with log images at RRC.
+6 more filings
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
- 448
- Max Depth
- 6,200 ft
- Drill Type
- Vertical
- County
- GRAYSON
- District
- 9
- Operator
- VENOCO INC.
- Completed
- 1986-04-28
Operator
- Name
- VENOCO, INC
- Location
- HOUSTON
- P-5 Status
- Inactive (filed 2009-09-03)
- Cum Oil (all leases)
- 2,250,265 bbl
- Cum Gas (all leases)
- 314,416 mcf
- Total Permits
- 15