42-439-31254
PRODUCING HorizontalDONEGAL HILLS
TARRANT County · District 9 · FORMENTERA OPERATIONS LLC · NEWARK EAST (BARNETT SHALE)
Permits
2
Max Depth
8,900 ft
First Permit
2005-05-18
Latest Activity
2005-05-18
Lifespan
< 1 yr
Regulatory Status
Schedule
ON SCHEDULE
Completion
2007-03-09
Shut-In
—
Plugged
—
P-5 Org Status: X
EWA / Permit operator mismatch
Scheduling: FORMENTERA OPERATIONS LLC ≠ Permit: CHIEF OIL & GAS LLC **
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
2005-07
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 (9) Elevation 879 ft (GR)
CSV| Formation | Top Depth (MD) | Subsea (+above / −below SL) |
|---|---|---|
| ATOKA | 4,604 ft | -3,725 ft |
| MARBLE FALLS | 5,904 ft | -5,025 ft |
| MARBLE FALLS | 6,548 ft | -5,669 ft |
| MARBLE FALLS | 6,557 ft | -5,678 ft |
| UPPER BARNETT SHALE (Barnett) | 6,627 ft | -5,748 ft |
| UPPER BARNETT SHALE (Barnett) | 6,632 ft | -5,753 ft |
| LOWER BARNETT SHALE (Barnett) | 6,663 ft | -5,784 ft |
| LOWER BARNETT SHALE (Barnett) | 6,668 ft | -5,789 ft |
| BARNETT SHALE (Barnett) | 6,710 ft | -5,831 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 (5)
| Interval | Type |
|---|---|
| 7,133–7,430 ft | Perforated |
| 7,630–7,933 ft | Perforated |
| 8,130–8,433 ft | Perforated |
| 8,633–8,930 ft | Perforated |
| 9,130–9,433 ft | Perforated |
Casing (3)
| Size | Set Depth | Cement |
|---|---|---|
| 8.625" | 1,060 ft | 520 sx |
| 5.5" | 9,523 ft | 890 sx |
| 5.5" | — | 510 sx |
Permit History (2)
Applications (2)
Records & Logs
4 completion filings on record · 1 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
- 1H
- Max Depth
- 8,900 ft
- Drill Type
- Horizontal
- County
- TARRANT
- District
- 9
- Operator
- FORMENTERA OPERATIONS LLC
- Completed
- 2007-03-09
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