42-469-31492
Final CompletionSHELTON-WEST UNIT -B-
VICTORIA County · District 2 · SUN EXPL. & PROD. CO.-HOUSTON · PALO ALTO (6800 FRIO)
Permits
5
Max Depth
7,500 ft
First Permit
1979-08-14
Latest Activity
2025-04-23
Lifespan
46 yrs
Regulatory Status
Schedule
OFF SCHEDULE
Completion
1981-09-04
Shut-In
—
Plugged
2018-05-16
EWA / Production operator mismatch
Scheduling: SUN EXPL. & PROD. CO.-HOUSTON ≠ Production: CREST PETROLEUM, LLC (reported 2009-03)
EWA / Permit operator mismatch
Scheduling: SUN EXPL. & PROD. CO.-HOUSTON ≠ Permit: SHORE PETROLEUM CORP.
Resolved via: scheduling → SUN EXPL. & PROD. CO.-HOUSTON
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
4,000 bbl/d
Max Pressure
3,002 psi
Injection Interval
6,005–6,670 ft
Injected (12mo)
—
Seismicity: no M2+ earthquakes recorded within 10 km in the last 24 months · TexNet catalog
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 (7) Elevation 55 ft (GR)
CSV| Formation | Top Depth (MD) | Subsea (+above / −below SL) |
|---|---|---|
| FRIO | 5,020 ft | -4,965 ft |
| 6600 FRIO | 6,598 ft | -6,543 ft |
| 6800 SAND | 6,807 ft | -6,752 ft |
| 6800 SAND LOWER | 6,807 ft | -6,752 ft |
| 6800 SAND | 6,823 ft | -6,768 ft |
| D SAND | 6,906 ft | -6,851 ft |
| "D" SAND LOWER | 6,906 ft | -6,851 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 ↗
Offset Well Tops (nearest 8 wells with tops)
What nearby completed wells reported.
Nearest wells within 10 mi (surface locations). Click wells to select them, then open the cross-section to compare tops side by side (max 6 wells per section, including this one).
Perforations (6)
| Interval | Type |
|---|---|
| 6,138–6,145 ft | Perforated |
| 6,598–6,601 ft | Perforated |
| 6,598–6,606 ft | Perforated |
| 6,808–6,812 ft | Perforated |
| 6,823–6,826 ft | Perforated |
| 6,910–6,914 ft | Perforated |
Casing (5)
| Size | Set Depth | Cement |
|---|---|---|
| 9.625" | 1,671 ft | 890 sx |
| 2.875" | 6,525 ft | — |
| 2.875" | 6,724 ft | — |
| 2.875" | 6,835 ft | — |
| 5.5" | 7,400 ft | 735 sx |
Permit History (5)
ZORILLA-MALONE · 7,400 ft
2025-04-23
Spud 1979-08-23
SHELTON-WEST UNIT "B" · 7,500 ft
1997-04-09
Spud 1997-02-10
SHELTON-WEST UNIT -B- · 7,400 ft
1983-08-08
SHELTON-WEST UNIT "B" · 6,850 ft
1981-08-13
SHELTON-WEST UNIT "B" · 6,850 ft
1979-08-14
Spud 1979-08-24
Applications (5)
Records & Logs
7 completion filings on record · 1 with log images at RRC.
+1 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.
Well Details
- Well Number
- 8W
- Max Depth
- 7,500 ft
- Drill Type
- Vertical
- County
- VICTORIA
- District
- 2
- Operator
- SUN EXPL. & PROD. CO.-HOUSTON
- Completed
- 1981-09-04
Operator
- Location
- HOUSTON
- P-5 Status
- Inactive
- Total Permits
- 483