42-173-31787
Final CompletionLEFTFIELD
GLASSCOCK County · District 8 · PIONEER NATURAL RES. USA INC. · DEWEY LAKE S. (STRAWN)
Permits
1
Max Depth
10,200 ft
First Permit
1985-01-17
Latest Activity
1985-01-17
Lifespan
< 1 yr
Regulatory Status
Schedule
OFF SCHEDULE
Completion
2023-11-30
Shut-In
—
Plugged
2024-04-03
EWA / Production operator mismatch
Scheduling: PIONEER NATURAL RES. USA INC. ≠ Production: PARSLEY ENERGY OPERATIONS, LLC (reported 2021-01)
EWA / Permit operator mismatch
Scheduling: PIONEER NATURAL RES. USA INC. ≠ Permit: BEACH EXPLORATION, INC.
Resolved via: scheduling → 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
1993-01
Last Production
2024-04
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 (8) Elevation 2,728 ft (GR)
CSV| Formation | Top Depth (MD) | Subsea (+above / −below SL) |
|---|---|---|
| YATES | 2,080 ft | +648 ft |
| SAN ANDRES | 3,310 ft | -582 ft |
| CLEARFORK (Clear Fork) | 6,035 ft | -3,307 ft |
| SPRABERRY | 7,220 ft | -4,492 ft |
| SPRAYBERRY (Spraberry) | 7,220 ft | -4,492 ft |
| DEAN | 7,910 ft | -5,182 ft |
| WOLFCAMP | 8,306 ft | -5,578 ft |
| STRAWN | 10,026 ft | -7,298 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 |
|---|---|
| 8,357–10,267 ft | Perforated |
Casing (3)
| Size | Set Depth | Cement |
|---|---|---|
| 13.375" | 355 ft | 350 sx |
| 9.625" | 3,456 ft | 300 sx |
| 7" | 8,357 ft | 500 sx |
Permit History (1)
Applications (2)
Records & Logs
5 completion filings 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.
No GPS coordinates yet
Well Details
- Well Number
- 1
- Max Depth
- 10,200 ft
- Drill Type
- Vertical
- County
- GLASSCOCK
- District
- 8
- Operator
- PIONEER NATURAL RES. USA INC.
- Completed
- 2023-11-30
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
- 15,403