42-317-38298
NO PRODUCTIONHERZOG 21
MARTIN County · District 8 · PIONEER NATURAL RES. USA INC. · SPRABERRY (TREND AREA)
Permits
1
Max Depth
11,900 ft
First Permit
2012-12-28
Latest Activity
2012-12-28
Lifespan
< 1 yr
Regulatory Status
Schedule
ON SCHEDULE
Completion
2013-03-22
Shut-In
—
Plugged
—
P-5 Org Status: Active
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
2007-06
Last Production
2026-07
Lease Production
Production is reported at the lease level. View production data, decline curves, and history on the lease page.
Formation Tops (6) Elevation 2,812 ft (GL)
CSV| Formation | Top Depth (MD) | Subsea (+above / −below SL) |
|---|---|---|
| TOP UPPER SPRABERRY (Spraberry) | 7,796 ft | -4,984 ft |
| TOP LOWER SPRABERRY (Spraberry) | 8,276 ft | -5,464 ft |
| TOP OF DEAN (Dean) | 9,118 ft | -6,306 ft |
| TOP OF WOLFCAMP (Wolfcamp) | 9,368 ft | -6,556 ft |
| TOP OF STRAWN (Strawn) | 10,988 ft | -8,176 ft |
| TOP OF ATOKA (Atoka) | 11,120 ft | -8,308 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 (5)
| Interval | Type |
|---|---|
| 7,844–8,720 ft | Perforated |
| 9,180–9,362 ft | Perforated |
| 9,420–10,788 ft | Perforated |
| 10,992–11,080 ft | Perforated |
| 11,140–11,438 ft | Perforated |
Casing (3)
| Size | Set Depth | Cement |
|---|---|---|
| 13.375" | 403 ft | 430 sx |
| 8.625" | 5,258 ft | 540 sx |
| 5.5" | 11,501 ft | 920 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
- 2
- Max Depth
- 11,900 ft
- Drill Type
- Vertical
- County
- MARTIN
- District
- 8
- Operator
- PIONEER NATURAL RES. USA INC.
- Completed
- 2013-03-22
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
- 15,416