42-393-31939
Final CompletionCHAMBERS 108
ROBERTS County · District 10 · SAMSON LONE STAR LLC · MENDOTA NW. (GRANITE WASH)
Permits
1
Max Depth
11,500 ft
First Permit
2007-02-10
Latest Activity
2007-02-10
Lifespan
< 1 yr
Regulatory Status
Schedule
OFF SCHEDULE
Completion
2007-08-17
Shut-In
—
Plugged
—
EWA / Production operator mismatch
Scheduling: SAMSON LONE STAR LLC ≠ Production: UNBRIDLED RESOURCES, LLC (reported 2026-04)
EWA / Permit operator mismatch
Scheduling: SAMSON LONE STAR LLC ≠ Permit: SAMSON LONE STAR LP
Resolved via: production → UNBRIDLED RESOURCES, 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
2007-08
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 (3) Elevation 2,646 ft (GL)
CSV| Formation | Top Depth (MD) | Subsea (+above / −below SL) |
|---|---|---|
| TNKW | 7,335 ft | -4,689 ft |
| CLVD | 8,302 ft | -5,656 ft |
| GRWS | 9,104 ft | -6,458 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 |
|---|---|
| 9,586–9,974 ft | Perforated |
Casing (2)
| Size | Set Depth | Cement |
|---|---|---|
| 8.625" | 2,480 ft | 1,220 sx |
| 5.5" | 10,345 ft | 405 sx |
Permit History (1)
Applications (1)
Records & Logs
4 completion filings on record · 2 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
- 1
- Max Depth
- 11,500 ft
- Drill Type
- Vertical
- County
- ROBERTS
- District
- 10
- Operator
- SAMSON LONE STAR LLC
- Completed
- 2007-08-17
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