42-329-43120
PRODUCING HorizontalMASSEY A UNIT
MIDLAND County · District 8 · PIONEER NATURAL RES. USA INC. · SPRABERRY (TREND AREA)
Permits
4
Max Depth
25,300 ft
First Permit
2019-01-29
Latest Activity
2019-01-29
Lifespan
< 1 yr
Regulatory Status
Schedule
ON SCHEDULE
Completion
2020-03-21
Shut-In
—
Plugged
—
P-5 Org Status: Active
EWA / Permit operator mismatch
Scheduling: PIONEER NATURAL RES. USA INC. ≠ Permit: PARSLEY ENERGY OPERATIONS, 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
2020-03
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 (10) Elevation 2,798 ft (GL)
CSV| Formation | Top Depth (MD) | Subsea (+above / −below SL) |
|---|---|---|
| SAN ANDRES - HIGH FLOWS, H2S, CO (San Andres) | 4,632 ft | -1,834 ft |
| CLEARFORK (Clear Fork) | 6,957 ft | -4,159 ft |
| SPRABERRY | 7,850 ft | -5,052 ft |
| SPRABERRY UPPER-DEAN (Spraberry) | 9,158 ft | -6,360 ft |
| WOLFCAMP | 9,371 ft | -6,573 ft |
| ATOKA | — | — |
| CANYON-STRAWN (Canyon) | — | — |
| GLORIETA | — | — |
| PENNSYLVANIAN | — | — |
| STRAWN | — | — |
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 |
|---|---|
| 10,201–23,011 ft | Perforated |
Casing (3)
| Size | Set Depth | Cement |
|---|---|---|
| 13.375" | 1,616 ft | 1,360 sx |
| 9.625" | 9,475 ft | 1,335 sx |
| 5.5" | 23,107 ft | 3,300 sx |
Permit History (4)
Applications (4)
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 can't be deep-linked — clicking copies the API for you to paste.
Well Details
- Well Number
- 4309H
- Max Depth
- 25,300 ft
- Drill Type
- Horizontal
- County
- MIDLAND
- District
- 8
- Operator
- PIONEER NATURAL RES. USA INC.
- Completed
- 2020-03-21
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
- 15,491