42-367-34798
PRODUCING HorizontalMADDUX HENRY GU
PARKER County · District 9 · FORMENTERA OPERATIONS LLC · NEWARK EAST (BARNETT SHALE)
Permits
1
Max Depth
9,000 ft
First Permit
2008-07-28
Latest Activity
2008-07-28
Lifespan
< 1 yr
Regulatory Status
Schedule
ON SCHEDULE
Completion
2008-12-30
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
2008-12
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 (3) Elevation 1,043 ft (GL)
CSV| Formation | Top Depth (MD) | Subsea (+above / −below SL) |
|---|---|---|
| MARBLE FALLS | 5,090 ft | -4,047 ft |
| LOWER MARBLE FALLS (Marble Falls) | 5,220 ft | -4,177 ft |
| UPPER BARNETT SHALE (Barnett) | 5,448 ft | -4,405 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 (4)
| Interval | Type |
|---|---|
| 6,060–6,331 ft | Perforated |
| 6,430–6,701 ft | Perforated |
| 6,800–7,071 ft | Perforated |
| 7,170–7,441 ft | Perforated |
Casing (2)
| Size | Set Depth | Cement |
|---|---|---|
| 9.625" | 539 ft | 230 sx |
| 5.5" | 7,520 ft | 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 can't be deep-linked — clicking copies the API for you to paste.
No GPS coordinates yet
Well Details
- Well Number
- 4H
- Max Depth
- 9,000 ft
- Drill Type
- Horizontal
- County
- PARKER
- District
- 9
- Operator
- FORMENTERA OPERATIONS LLC
- Completed
- 2008-12-30
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
- 71