42-507-32831
PRODUCING HorizontalFERGUSON-MCKNIGHT
ZAVALA County · District 1 · MAGNOLIA OIL & GAS OPERATING LLC · BRISCOE RANCH (EAGLEFORD)
Permits
1
Max Depth
7,200 ft
First Permit
2011-09-29
Latest Activity
2011-09-29
Lifespan
< 1 yr
Regulatory Status
Schedule
ON SCHEDULE
Completion
2011-12-19
Shut-In
—
Plugged
—
P-5 Org Status: X
EWA / Permit operator mismatch
Scheduling: MAGNOLIA OIL & GAS OPERATING LLC ≠ Permit: NEWFIELD EXPLORATION COMPANY
Resolved via: production → MAGNOLIA OIL & GAS OPERATING 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
2010-08
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 560 ft (GR)
CSV| Formation | Top Depth (MD) | Subsea (+above / −below SL) |
|---|---|---|
| ANACACHO | 4,658 ft | -4,098 ft |
| AUSTIN CHALK | 4,749 ft | -4,189 ft |
| UPPER EAGLE FORD (Eagle Ford) | 5,814 ft | -5,254 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 (14)
| Interval | Type |
|---|---|
| 7,017–7,227 ft | Perforated |
| 7,337–7,547 ft | Perforated |
| 7,657–7,867 ft | Perforated |
| 7,977–8,187 ft | Perforated |
| 8,297–8,507 ft | Perforated |
| 8,617–8,827 ft | Perforated |
| 8,937–9,147 ft | Perforated |
| 9,257–9,467 ft | Perforated |
| 9,577–9,787 ft | Perforated |
| 9,897–10,107 ft | Perforated |
| 10,217–10,427 ft | Perforated |
| 10,537–10,747 ft | Perforated |
| 10,857–11,067 ft | Perforated |
| 11,177–11,415 ft | Perforated |
Casing (2)
| Size | Set Depth | Cement |
|---|---|---|
| 9.625" | 1,348 ft | 481 sx |
| 5.5" | 11,612 ft | 2,300 sx |
Permit History (1)
Applications (1)
Records & Logs
1 completion filing 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
- 5271H
- Max Depth
- 7,200 ft
- Drill Type
- Horizontal
- County
- ZAVALA
- District
- 1
- Operator
- MAGNOLIA OIL & GAS OPERATING LLC
- Completed
- 2011-12-19
Operator
- Location
- HOUSTON
- P-5 Status
- X (filed 2026-05-06)
- Cum Oil (all leases)
- 73,106,082 bbl
- Cum Gas (all leases)
- 451,822,685 mcf
- Activities
- CSGD/G, CSGD/P, G/PUR, OPRS/G, OPRS/O
- Total Permits
- 589