42-211-33225
Final CompletionHEFLEY 13
HEMPHILL County · District 10 · SAMSON LONE STAR LLC · BUFFALO WALLOW (GRANITE WASH)
Permits
1
Max Depth
13,500 ft
First Permit
2005-02-16
Latest Activity
2005-02-16
Lifespan
< 1 yr
Regulatory Status
Schedule
OFF SCHEDULE
Completion
2005-07-09
Shut-In
—
Plugged
—
EWA / Production operator mismatch
Scheduling: SAMSON LONE STAR LLC ≠ Production: MMGL TXPH, LLC (reported 2026-04)
EWA / Permit operator mismatch
Scheduling: SAMSON LONE STAR 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
2005-07
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 2,531 ft (GL)
CSV| Formation | Top Depth (MD) | Subsea (+above / −below SL) |
|---|---|---|
| BROWN DOLOMITE | 4,380 ft | -1,849 ft |
| DOUGLAS | 7,930 ft | -5,399 ft |
| TONKAWA | 8,754 ft | -6,223 ft |
| CLEVELAND | 10,066 ft | -7,535 ft |
| OSWEGO | 10,510 ft | -7,979 ft |
| GRANITE WASH | 10,919 ft | -8,388 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 |
|---|---|
| 11,071–11,664 ft | Perforated |
Casing (2)
| Size | Set Depth | Cement |
|---|---|---|
| 8.625" | 3,120 ft | 1,630 sx |
| 5.5" | 13,378 ft | 595 sx |
Permit History (1)
Applications (1)
Records & Logs
5 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
- 3
- Max Depth
- 13,500 ft
- Drill Type
- Vertical
- County
- HEMPHILL
- District
- 10
- Operator
- SAMSON LONE STAR LLC
- Completed
- 2005-07-09
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