42-501-32764
Final CompletionLACKEY MARY
YOAKUM County · District 8 · SHELL WESTERN E&P INC. · OWNBY (CLEAR FORK UPPER)
Permits
1
Max Depth
7,100 ft
First Permit
1984-12-11
Latest Activity
1984-12-11
Lifespan
< 1 yr
Regulatory Status
Schedule
OFF SCHEDULE
Completion
1985-08-05
Shut-In
—
Plugged
—
EWA / Production operator mismatch
Scheduling: SHELL WESTERN E&P INC. ≠ Production: OCCIDENTAL PERMIAN LTD. (reported 2026-04)
EWA / Permit operator mismatch
Scheduling: SHELL WESTERN E&P INC. ≠ Permit: TENNECO OIL CO.
Resolved via: production → OCCIDENTAL PERMIAN 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
Injection / Disposal
Permitted Volume
500 bbl/d
Max Pressure
1,450 psi
Injection Interval
6,690–7,000 ft
Injected (12mo)
—
Monthly injected volume (bbl, from H-10 filings through 2025-11-01)
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 (5) Elevation 3,575 ft (GR)
CSV| Formation | Top Depth (MD) | Subsea (+above / −below SL) |
|---|---|---|
| RUSTLER | 2,587 ft | +988 ft |
| RUSTLER ANHYDRITE (Rustler) | 2,587 ft | +988 ft |
| YATES | 3,362 ft | +213 ft |
| SAN ANDRES | 4,775 ft | -1,200 ft |
| UPPER CLEARFORK (Clear Fork) | 6,354 ft | -2,779 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 |
|---|---|
| 6,723–6,846 ft | Perforated |
Casing (2)
| Size | Set Depth | Cement |
|---|---|---|
| 8.625" | 2,600 ft | 1,180 sx |
| 5.5" | 7,000 ft | 1,433 sx |
Permit History (1)
Applications (1)
Records & Logs
5 completion filings on record · 2 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
- 4
- Max Depth
- 7,100 ft
- Drill Type
- Vertical
- County
- YOAKUM
- District
- 8
- Operator
- SHELL WESTERN E&P INC.
- Completed
- 1985-08-05
Operator
- Location
- HOUSTON
- P-5 Status
- Inactive (filed 1999-09-16)
- Cum Oil (all leases)
- 103,539,803 bbl
- Cum Gas (all leases)
- 1,149,777,929 mcf
- Total Permits
- 2,528