42-461-37117
PRODUCINGRAILWAY RANCH 18
UPTON County · District 7 · WINN OPERATING LLC · SPRABERRY (TREND AREA)
Permits
1
Max Depth
12,000 ft
First Permit
2011-01-05
Latest Activity
2011-01-05
Lifespan
< 1 yr
Regulatory Status
Schedule
ON SCHEDULE
Completion
2011-05-17
Shut-In
—
Plugged
—
P-5 Org Status: Active
EWA / Permit operator mismatch
Scheduling: WINN OPERATING LLC ≠ Permit: COG OPERATING LLC
Resolved via: production → WINN OPERATING, 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
2007-03
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 2,856 ft (GL)
CSV| Formation | Top Depth (MD) | Subsea (+above / −below SL) |
|---|---|---|
| SPRABERRY | 7,750 ft | -4,894 ft |
| DEAN | 9,040 ft | -6,184 ft |
| WOLFCAMP | 9,130 ft | -6,274 ft |
| BASE WOLFCAMP (Wolfcamp) | 10,500 ft | -7,644 ft |
| STRAWN | 10,700 ft | -7,844 ft |
| BEND | 11,050 ft | -8,194 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 |
|---|---|
| 7,950–11,100 ft | Perforated |
Casing (2)
| Size | Set Depth | Cement |
|---|---|---|
| 9.625" | 815 ft | 430 sx |
| 5.5" | 11,308 ft | 912 sx |
Permit History (1)
Applications (1)
Records & Logs
1 completion filing on record · 1 with log images at RRC.
Completion packets open directly (post-2011 filings include attached logs). Log images and the UL library can't be deep-linked — clicking copies the API for you to paste.
No GPS coordinates yet
Well Details
- Well Number
- 11
- Max Depth
- 12,000 ft
- Drill Type
- Vertical
- County
- UPTON
- District
- 7
- Operator
- WINN OPERATING LLC
- Completed
- 2011-05-17
Operator
- Name
- WINN OPER, LLC
- Location
- KILGORE
- P-5 Status
- Active (filed 2026-01-23)
- Cum Oil (all leases)
- 1,535,482 bbl
- Cum Gas (all leases)
- 178,389 mcf
- Activities
- OPRS/G, OPRS/O
- Total Permits
- 1