42-461-36711
PRODUCINGRAILWAY RANCH 18
UPTON County · District 7 · WINN OPERATING LLC · SPRABERRY (TREND AREA)
Permits
1
Max Depth
11,200 ft
First Permit
2010-05-25
Latest Activity
2010-05-25
Lifespan
< 1 yr
Regulatory Status
Schedule
ON SCHEDULE
Completion
2010-08-15
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 (7) Elevation 2,855 ft
CSV| Formation | Top Depth (MD) | Subsea (+above / −below SL) |
|---|---|---|
| UPPER SPRABERRY (Spraberry) | 7,877 ft | -5,022 ft |
| DEAN | 9,060 ft | -6,205 ft |
| WOLFCAMP | 9,160 ft | -6,305 ft |
| LOWER WOLFCAMP (Wolfcamp) | 9,580 ft | -6,725 ft |
| BASAL WOLFCAMP (Wolfcamp) | 10,510 ft | -7,655 ft |
| STRAWN | 10,700 ft | -7,845 ft |
| BEND | 11,050 ft | -8,195 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 |
|---|---|
| 7,877–11,070 ft | Perforated |
Casing (2)
| Size | Set Depth | Cement |
|---|---|---|
| 9.625" | 805 ft | 350 sx |
| 5.5" | 11,190 ft | 945 sx |
Permit History (1)
Applications (1)
Records & Logs
2 completion filings 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
- 14
- Max Depth
- 11,200 ft
- Drill Type
- Vertical
- County
- UPTON
- District
- 7
- Operator
- WINN OPERATING LLC
- Completed
- 2010-08-15
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