42-217-30380
PRODUCING HorizontalMASTIN NORTH UNIT
HILL County · District 9 · FORMENTERA OPERATIONS LLC · NEWARK EAST (BARNETT SHALE)
Permits
2
Max Depth
8,900 ft
First Permit
2005-11-02
Latest Activity
2005-11-02
Lifespan
< 1 yr
Regulatory Status
Schedule
ON SCHEDULE
Completion
2018-11-15
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
2006-09
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 (6) Elevation 741 ft (GL)
CSV| Formation | Top Depth (MD) | Subsea (+above / −below SL) |
|---|---|---|
| BIG SALINE | 7,372 ft | -6,631 ft |
| MARBLE FALLS | 7,854 ft | -7,113 ft |
| BARNETT SHALE (Barnett) | 8,091 ft | -7,350 ft |
| BARNETT SHALE (Barnett) | — | — |
| BIG SALINE | — | — |
| MARBLE FALLS | — | — |
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 |
|---|---|
| 8,255–8,445 ft | Perforated |
| 8,255–10,300 ft | Perforated |
| 8,920–9,250 ft | Perforated |
| 9,450–9,555 ft | Perforated |
| 10,181–10,300 ft | Perforated |
Casing (2)
| Size | Set Depth | Cement |
|---|---|---|
| 9.625" | 1,778 ft | 600 sx |
| 5.5" | 10,419 ft | 870 sx |
Permit History (2)
Applications (2)
Records & Logs
3 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
- 1
- Max Depth
- 8,900 ft
- Drill Type
- Horizontal
- County
- HILL
- District
- 9
- Operator
- FORMENTERA OPERATIONS LLC
- Completed
- 2018-11-15
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
- 74