42-135-35343
SHUT INTXL NORTH UNIT
ECTOR County · District 8 · FORMENTERA OPERATIONS LLC · TXL (TUBB)
Permits
1
Max Depth
6,920 ft
First Permit
1986-09-25
Latest Activity
1986-09-25
Lifespan
< 1 yr
Regulatory Status
Schedule
ON SCHEDULE
Completion
1987-10-27
Shut-In
—
Plugged
—
P-5 Org Status: X
EWA / Permit operator mismatch
Scheduling: FORMENTERA OPERATIONS LLC ≠ Permit: SHELL WESTERN E&P INC.
Resolved via: production → FORMENTERA OPERATIONS 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
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 (10) Elevation 3,267 ft (GR)
CSV| Formation | Top Depth (MD) | Subsea (+above / −below SL) |
|---|---|---|
| RUSTLER | 1,492 ft | +1,775 ft |
| YATES | 2,768 ft | +499 ft |
| SEVEN RIVERS | 2,960 ft | +307 ft |
| QUEEN | 3,427 ft | -160 ft |
| SAN ANDRES | 4,152 ft | -885 ft |
| UPPER CLEARFORK (5600') (Clear Fork) | 5,443 ft | -2,176 ft |
| TUBB | 6,090 ft | -2,823 ft |
| LOWER CLEARFORK (Clear Fork) | 6,157 ft | -2,890 ft |
| WICHITA (Wichita-Albany) | 6,537 ft | -3,270 ft |
| BASE UNIT | 6,793 ft | -3,526 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 |
|---|---|
| 5,596–6,850 ft | Perforated |
Casing (3)
| Size | Set Depth | Cement |
|---|---|---|
| 14" | 40 ft | — |
| 8.625" | 1,500 ft | 750 sx |
| 5.5" | 6,890 ft | 2,940 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 and the UL library can't be deep-linked — clicking copies the API for you to paste.
No GPS coordinates yet
Well Details
- Well Number
- 458
- Max Depth
- 6,920 ft
- Drill Type
- Vertical
- County
- ECTOR
- District
- 8
- Operator
- FORMENTERA OPERATIONS LLC
- Completed
- 1987-10-27
Operator
- Location
- AUSTIN
- P-5 Status
- X (filed 2026-06-11)
- Cum Oil (all leases)
- 7,170,117 bbl
- Cum Gas (all leases)
- 53,235,974 mcf
- Activities
- CSGD/P, G/PUR, OPRS/G, OPRS/O
- Total Permits
- 88