42-211-34871
PRODUCING HorizontalHOOVER 52
HEMPHILL County · District 10 · MEWBOURNE OIL COMPANY · BUFFALO WALLOW (GRANITE WASH)
Permits
1
Max Depth
11,500 ft
First Permit
2011-04-08
Latest Activity
2011-04-08
Lifespan
< 1 yr
Regulatory Status
Schedule
ON SCHEDULE
Completion
2011-08-17
Shut-In
—
Plugged
—
P-5 Org Status: Active
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
2011-08
Last Production
2026-07
Lease Production
Production is reported at the lease level. View production data, decline curves, and history on the lease page.
Formation Tops (3) Elevation 2,625 ft (GR)
CSV| Formation | Top Depth (MD) | Subsea (+above / −below SL) |
|---|---|---|
| PENN SHALE (Pennsylvanian) | 5,950 ft | -3,325 ft |
| HEEBNER SHALE | 7,614 ft | -4,989 ft |
| GRANITE WASH | 10,910 ft | -8,285 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 (1)
| Interval | Type |
|---|---|
| 11,238–15,150 ft | Perforated |
Casing (2)
| Size | Set Depth | Cement |
|---|---|---|
| 9.625" | 2,515 ft | 755 sx |
| 7" | 11,143 ft | 50 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
- 521H
- Max Depth
- 11,500 ft
- Drill Type
- Horizontal
- County
- HEMPHILL
- District
- 10
- Operator
- MEWBOURNE OIL COMPANY
- Completed
- 2011-08-17
Operator
- Name
- MEWBOURNE OIL CO
- Location
- TYLER
- P-5 Status
- Active (filed 2026-05-21)
- Cum Oil (all leases)
- 48,864,987 bbl
- Cum Gas (all leases)
- 768,985,959 mcf
- Activities
- CSGD/P, G/PUR, OPRS/G, OPRS/O
- Total Permits
- 2,022