42-251-30586
PRODUCING HorizontalSYLVESTER
JOHNSON County · District 9 · FORMENTERA OPERATIONS LLC · NEWARK EAST (BARNETT SHALE)
Permits
1
Max Depth
9,000 ft
First Permit
2005-10-11
Latest Activity
2005-10-11
Lifespan
< 1 yr
Regulatory Status
Schedule
ON SCHEDULE
Completion
2005-12-22
Shut-In
—
Plugged
—
P-5 Org Status: X
EWA / Permit operator mismatch
Scheduling: FORMENTERA OPERATIONS LLC ≠ Permit: DEVON ENERGY PRODUCTION CO, L.P.
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
2005-12
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 753 ft (GL)
CSV| Formation | Top Depth (MD) | Subsea (+above / −below SL) |
|---|---|---|
| BIG SALINE | 6,970 ft | -6,217 ft |
| BASAL ATOKA (Atoka) | 7,514 ft | -6,761 ft |
| LOWER MABLE FALLS | 7,516 ft | -6,763 ft |
| BARNETT SHALE (UPPER) (Barnett) | 7,775 ft | -7,022 ft |
| BARNETT SHALE (Barnett) | 7,776 ft | -7,023 ft |
| LOWER BARNETT SHALE (Barnett) | 8,020 ft | -7,267 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 |
|---|---|
| 8,542–8,972 ft | Perforated |
| 9,077–9,507 ft | Perforated |
| 9,612–10,043 ft | Perforated |
Casing (2)
| Size | Set Depth | Cement |
|---|---|---|
| 9.625" | 1,515 ft | 650 sx |
| 5.5" | 10,136 ft | 1,528 sx |
Permit History (1)
Applications (1)
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
- 9,000 ft
- Drill Type
- Horizontal
- County
- JOHNSON
- District
- 9
- Operator
- FORMENTERA OPERATIONS LLC
- Completed
- 2005-12-22
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