42-211-33233
PRODUCINGHELTON
HEMPHILL County · District 10 · MMGL TXPH LLC · BUFFALO WALLOW (GRANITE WASH)
Permits
1
Max Depth
14,000 ft
First Permit
2005-02-24
Latest Activity
2005-02-24
Lifespan
< 1 yr
Regulatory Status
Schedule
ON SCHEDULE
Completion
2005-10-31
Shut-In
—
Plugged
—
P-5 Org Status: Active
EWA / Permit operator mismatch
Scheduling: MMGL TXPH LLC ≠ Permit: SAMSON LONE STAR LP
Resolved via: production → MMGL TXPH, 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
2005-10
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 2,558 ft (GL)
CSV| Formation | Top Depth (MD) | Subsea (+above / −below SL) |
|---|---|---|
| GRANITE WASH | 1,122 ft | +1,436 ft |
| BROWN DOLOMITE | 4,478 ft | -1,920 ft |
| PENN SHALE (Pennsylvanian) | 6,550 ft | -3,992 ft |
| TONKAWA | 8,916 ft | -6,358 ft |
| CLEVELAND | 10,275 ft | -7,717 ft |
| OSWEGO | 10,568 ft | -8,010 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 |
|---|---|
| 11,291–12,581 ft | Perforated |
Casing (2)
| Size | Set Depth | Cement |
|---|---|---|
| 8.625" | 3,182 ft | 1,810 sx |
| 5.5" | 12,815 ft | 535 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
- 521
- Max Depth
- 14,000 ft
- Drill Type
- Vertical
- County
- HEMPHILL
- District
- 10
- Operator
- MMGL TXPH LLC
- Completed
- 2005-10-31
Operator
- Name
- MMGL TXPH, LLC
- Location
- DALLAS
- P-5 Status
- Active (filed 2025-07-24)
- Cum Oil (all leases)
- 220,131 bbl
- Cum Gas (all leases)
- 64,022,648 mcf
- Activities
- CSGD/G, CSGD/P, G/PUR, GTHS/G, OPRS/G, OPRS/O
- Total Permits
- 10