42-181-30730
Final CompletionBIG MINERAL CREEK/STRAWN I/UNIT
GRAYSON County · District 9 · VENOCO INC. · BIG MINERAL CREEK (STRAWN)
Permits
1
Max Depth
3,700 ft
First Permit
1980-06-27
Latest Activity
1980-06-27
Lifespan
< 1 yr
Regulatory Status
Schedule
OFF SCHEDULE
Completion
1981-01-21
Shut-In
—
Plugged
2023-06-12
EWA / Production operator mismatch
Scheduling: VENOCO INC. ≠ Production: FLINTLOCK EXPLORATION, LLC (reported 2026-04)
EWA / Permit operator mismatch
Scheduling: VENOCO INC. ≠ Permit: SHELL OIL COMPANY
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
500 bbl/d
Max Pressure
1,850 psi
Injection Interval
3,451–3,521 ft
Injected (12mo)
—
Monthly injected volume (bbl, from H-10 filings through 2023-09-01)
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 675 ft (GR)
CSV| Formation | Top Depth (MD) | Subsea (+above / −below SL) |
|---|---|---|
| STRAWN I (Strawn) | 3,419 ft | -2,744 ft |
| STRAWN ZONE 1D (Strawn) | 3,461 ft | -2,786 ft |
| STRAWN II (Strawn) | 3,587 ft | -2,912 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 |
|---|---|
| 3,451–3,521 ft | Perforated |
Casing (4)
| Size | Set Depth | Cement |
|---|---|---|
| 8.625" | 400 ft | 275 sx |
| 2.375" | 3,350 ft | — |
| 5.5" | 3,700 ft | 560 sx |
| 5.5" | 3,700 ft | 640 sx |
Permit History (1)
Applications (1)
Records & Logs
3 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
- 402W
- Max Depth
- 3,700 ft
- Drill Type
- Vertical
- County
- GRAYSON
- District
- 9
- Operator
- VENOCO INC.
- Completed
- 1981-01-21
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