42-329-44348
PRODUCING HorizontalTHUNDERBIRD A 50-51
MIDLAND County · District 8 · PIONEER NATURAL RES. USA INC. · SPRABERRY (TREND AREA)
Permits
2
Max Depth
9,500 ft
First Permit
2020-07-01
Latest Activity
2020-07-01
Lifespan
< 1 yr
Regulatory Status
Schedule
ON SCHEDULE
Completion
2021-01-16
Shut-In
—
Plugged
—
P-5 Org Status: Active
EWA / Permit operator mismatch
Scheduling: PIONEER NATURAL RES. USA INC. ≠ Permit: DE3 OPERATING LLC
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
2020-09
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 (10) Elevation 2,715 ft (GL)
CSV| Formation | Top Depth (MD) | Subsea (+above / −below SL) |
|---|---|---|
| SANTA ROSA | 1,000 ft | +1,715 ft |
| RUSTLER | 1,764 ft | +951 ft |
| YATES | 2,580 ft | +135 ft |
| SEVEN RIVERS | 2,793 ft | -78 ft |
| QUEEN | 3,442 ft | -727 ft |
| GRAYBURG | 4,013 ft | -1,298 ft |
| SAN ANDRES - HIGH FLOWS, H2S, CO (San Andres) | 4,245 ft | -1,530 ft |
| GLORIETA | 5,276 ft | -2,561 ft |
| CLEARFORK (Clear Fork) | 6,607 ft | -3,892 ft |
| SPRABERRY | 7,449 ft | -4,734 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 ↗
Offset Well Tops (nearest 8 wells with tops)
What nearby completed wells reported.
Nearest wells within 10 mi (surface locations). Click wells to select them, then open the cross-section to compare tops side by side (max 6 wells per section, including this one).
Perforations (1)
| Interval | Type |
|---|---|
| 9,672–19,666 ft | Perforated |
Casing (3)
| Size | Set Depth | Cement |
|---|---|---|
| 13.375" | 1,638 ft | 1,350 sx |
| 9.625" | 8,782 ft | 680 sx |
| 5.5" | 19,780 ft | 2,980 sx |
Permit History (2)
Applications (2)
Records & Logs
2 completion filings on record · 2 with log images at RRC.
Completion packets open directly (post-2011 filings include attached logs). Log images can't be deep-linked — clicking copies the API for you to paste.
Well Details
- Well Number
- 4301H
- Max Depth
- 9,500 ft
- Drill Type
- Horizontal
- County
- MIDLAND
- District
- 8
- Operator
- PIONEER NATURAL RES. USA INC.
- Completed
- 2021-01-16
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
- 15,466