42-135-35700
PRODUCINGTXL NORTH UNIT
ECTOR County · District 8 · FORMENTERA OPERATIONS LLC · TXL (TUBB)
Permits
1
Max Depth
7,100 ft
First Permit
1987-11-25
Latest Activity
1987-11-25
Lifespan
< 1 yr
Regulatory Status
Schedule
ON SCHEDULE
Completion
1988-02-10
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 3,312 ft (GR)
CSV| Formation | Top Depth (MD) | Subsea (+above / −below SL) |
|---|---|---|
| RUSTLER | 1,468 ft | +1,844 ft |
| YATES | 2,741 ft | +571 ft |
| SEVEN RIVERS | 2,929 ft | +383 ft |
| QUEEN | 3,388 ft | -76 ft |
| SAN ANDRES | 4,072 ft | -760 ft |
| UPPER CLEARFORK 5600' (Clear Fork) | 5,419 ft | -2,107 ft |
| TUBB | 6,046 ft | -2,734 ft |
| LOWER CLEARFORK (Clear Fork) | 6,102 ft | -2,790 ft |
| WICHITA (Wichita-Albany) | 6,548 ft | -3,236 ft |
| BASE UNIT | 6,769 ft | -3,457 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 (3)
| Interval | Type |
|---|---|
| 5,560–6,004 ft | Perforated |
| 6,124–6,376 ft | Perforated |
| 6,520–6,711 ft | Perforated |
Casing (3)
| Size | Set Depth | Cement |
|---|---|---|
| 14" | 40 ft | — |
| 8.625" | 1,513 ft | 700 sx |
| 5.5" | 6,890 ft | 825 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
- 266
- Max Depth
- 7,100 ft
- Drill Type
- Vertical
- County
- ECTOR
- District
- 8
- Operator
- FORMENTERA OPERATIONS LLC
- Completed
- 1988-02-10
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
- 72