42-461-36873
PRODUCINGRAILWAY RANCH 18
UPTON County · District 7 · WINN OPERATING LLC · SPRABERRY (TREND AREA)
Permits
1
Max Depth
11,500 ft
First Permit
2010-08-31
Latest Activity
2010-08-31
Lifespan
< 1 yr
Regulatory Status
Schedule
ON SCHEDULE
Completion
2011-01-02
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 2,850 ft (GL)
CSV| Formation | Top Depth (MD) | Subsea (+above / −below SL) |
|---|---|---|
| SPRABERRY | 7,730 ft | -4,880 ft |
| DEAN | 9,040 ft | -6,190 ft |
| WOLFCAMP | 9,125 ft | -6,275 ft |
| LOWER WOLFCAMP (Wolfcamp) | 9,530 ft | -6,680 ft |
| BASE WOLFCAMP (Wolfcamp) | 10,480 ft | -7,630 ft |
| STRAWN | 10,685 ft | -7,835 ft |
| BEND | 11,050 ft | -8,200 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 |
|---|---|
| 7,945–11,080 ft | Perforated |
Casing (2)
| Size | Set Depth | Cement |
|---|---|---|
| 9.625" | 775 ft | 430 sx |
| 5.5" | 11,160 ft | 910 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
- 15
- Max Depth
- 11,500 ft
- Drill Type
- Vertical
- County
- UPTON
- District
- 7
- Operator
- WINN OPERATING LLC
- Completed
- 2011-01-02
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