42-211-31844
Final CompletionHALL
HEMPHILL County · District 10 · SAMSON LONE STAR LLC · ALLISON PARKS (GRANITE WASH)
Permits
3
Max Depth
15,100 ft
First Permit
1986-11-17
Latest Activity
2010-07-20
Lifespan
24 yrs
Regulatory Status
Schedule
OFF SCHEDULE
Completion
2010-09-13
Shut-In
—
Plugged
—
EWA / Production operator mismatch
Scheduling: SAMSON LONE STAR LLC ≠ Production: MMGL TXPH, LLC (reported 2026-04)
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
1993-01
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 (7) Elevation 2,564 ft (KB)
CSV| Formation | Top Depth (MD) | Subsea (+above / −below SL) |
|---|---|---|
| DOUGLAS | 8,525 ft | -5,961 ft |
| HOGSHOOTER | 10,558 ft | -7,994 ft |
| CLEVELAND | 10,827 ft | -8,263 ft |
| MARMATON | 11,550 ft | -8,986 ft |
| 13 FINGER | 14,512 ft | -11,948 ft |
| UP MORROW | 14,850 ft | -12,286 ft |
| UPPER MORROW (Morrow) | 14,850 ft | -12,286 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 (2)
| Interval | Type |
|---|---|
| 12,068–12,477 ft | Perforated |
| 14,922–14,948 ft | Perforated |
Casing (5)
| Size | Set Depth | Cement |
|---|---|---|
| 16" | 385 ft | 1,150 sx |
| 10.75" | 6,458 ft | 1,635 sx |
| 10.75" | 6,548 ft | 1,650 sx |
| 7" | 14,646 ft | 900 sx |
| 7" | 14,646 ft | — |
Permit History (3)
Applications (3)
Records & Logs
7 completion filings on record · 3 with log images at RRC.
+1 more filings
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
- 303
- Max Depth
- 15,100 ft
- Drill Type
- Vertical
- County
- HEMPHILL
- District
- 10
- Operator
- SAMSON LONE STAR LLC
- Completed
- 2010-09-13
Operator
- Location
- TULSA
- P-5 Status
- Delinquent (filed 2020-01-30)
- Cum Oil (all leases)
- 5,312,544 bbl
- Cum Gas (all leases)
- 1,149,688,476 mcf
- Activities
- G/PUR
- Total Permits
- 1,290