42-461-35304
PRODUCINGHALFF ESTATE 26
UPTON County · District 7 · PIONEER NATURAL RES. USA INC. · SPRABERRY (TREND AREA)
Permits
1
Max Depth
10,400 ft
First Permit
2007-03-09
Latest Activity
2007-03-09
Lifespan
< 1 yr
Regulatory Status
Schedule
ON SCHEDULE
Completion
2007-04-24
Shut-In
—
Plugged
—
P-5 Org Status: Active
EWA / Permit operator mismatch
Scheduling: PIONEER NATURAL RES. USA INC. ≠ Permit: JM COX RESOURCES, L.P.
Resolved via: production → PIONEER NATURAL RES. USA, INC.
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
2007-04
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 (4) Elevation 2,662 ft
CSV| Formation | Top Depth (MD) | Subsea (+above / −below SL) |
|---|---|---|
| SAN ANDRES | 4,790 ft | -2,128 ft |
| SPRABERRY | 6,950 ft | -4,288 ft |
| DEAN | 8,330 ft | -5,668 ft |
| WOLFCAMP | 8,790 ft | -6,128 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 (6)
| Interval | Type |
|---|---|
| 8,452–8,638 ft | Perforated |
| 8,814–8,912 ft | Perforated |
| 9,012–9,144 ft | Perforated |
| 9,313–9,460 ft | Perforated |
| 9,537–9,716 ft | Perforated |
| 9,854–9,972 ft | Perforated |
Casing (3)
| Size | Set Depth | Cement |
|---|---|---|
| 13.375" | 430 ft | 400 sx |
| 8.625" | 4,604 ft | 1,400 sx |
| 5.5" | 10,290 ft | 1,200 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
- 2
- Max Depth
- 10,400 ft
- Drill Type
- Vertical
- County
- UPTON
- District
- 7
- Operator
- PIONEER NATURAL RES. USA INC.
- Completed
- 2007-04-24
Operator
- Location
- Y SPRING
- P-5 Status
- Active (filed 2025-08-01)
- Cum Oil (all leases)
- 1,771,882,421 bbl
- Cum Gas (all leases)
- 1,763,727,021 mcf
- Activities
- CSGD/G, CSGD/P, G/PUR, GTHS/G, GTHS/O, OPRS/G, OPRS/O
- Total Permits
- 15,529