42-211-33686
Final CompletionMENDOTA RANCH 51C
HEMPHILL County · District 10 · SAMSON LONE STAR LLC · MENDOTA NW. (GRANITE WASH)
Permits
2
Max Depth
11,950 ft
First Permit
2006-08-23
Latest Activity
2006-08-23
Lifespan
< 1 yr
Regulatory Status
Schedule
OFF SCHEDULE
Completion
2007-04-20
Shut-In
—
Plugged
—
EWA / Permit operator mismatch
Scheduling: SAMSON LONE STAR LLC ≠ Permit: DOMINION OKLAHOMA TEXAS E&P, INC
Resolved via: scheduling → SAMSON LONE STAR 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
2006-11
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 (8) Elevation 2,551 ft (GR)
CSV| Formation | Top Depth (MD) | Subsea (+above / −below SL) |
|---|---|---|
| T/BRN DOLOMITE | 3,970 ft | -1,419 ft |
| T/BROWN DOLOMITE | 3,970 ft | -1,419 ft |
| B/HEEBNER DOUGLAS | 7,020 ft | -4,469 ft |
| CLEVELAND MKR (Cleveland) | 8,885 ft | -6,334 ft |
| CLEVELAND MKR. (Cleveland) | 8,885 ft | -6,334 ft |
| T/BRITT GRANITE WASH | 9,795 ft | -7,244 ft |
| GRANITE WASH D SHALE (Granite Wash) | 10,445 ft | -7,894 ft |
| ATOKA WASH (Atoka) | 10,787 ft | -8,236 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 |
|---|---|
| 9,798–10,976 ft | Perforated |
Casing (2)
| Size | Set Depth | Cement |
|---|---|---|
| 9.625" | 3,040 ft | 1,850 sx |
| 5.5" | 11,450 ft | 480 sx |
Permit History (2)
Applications (2)
Records & Logs
6 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
- 4
- Max Depth
- 11,950 ft
- Drill Type
- Vertical
- County
- HEMPHILL
- District
- 10
- Operator
- SAMSON LONE STAR LLC
- Completed
- 2007-04-20
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