42-173-31765
Final CompletionSHAMROCK -4-
GLASSCOCK County · District 8 · PIONEER NATURAL RES. USA INC. · DEWEY LAKE S. (STRAWN)
Permits
1
Max Depth
10,500 ft
First Permit
1984-12-18
Latest Activity
1984-12-18
Lifespan
< 1 yr
Regulatory Status
Schedule
OFF SCHEDULE
Completion
1985-04-01
Shut-In
—
Plugged
2024-05-21
EWA / Permit operator mismatch
Scheduling: PIONEER NATURAL RES. USA INC. ≠ Permit: MWJ PRODUCING COMPANY
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
2024-05
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 2,721 ft (GL)
CSV| Formation | Top Depth (MD) | Subsea (+above / −below SL) |
|---|---|---|
| LOWER CLEARFORK (Clear Fork) | 6,042 ft | -3,321 ft |
| UPPER SPRABERRY (Spraberry) | 6,355 ft | -3,634 ft |
| MIDDLE SPRABERRY (Spraberry) | 7,000 ft | -4,279 ft |
| LOWER SPRABERRY (Spraberry) | 7,338 ft | -4,617 ft |
| WICHITA ALBANY (Wichita-Albany) | 7,750 ft | -5,029 ft |
| DEAN | 7,892 ft | -5,171 ft |
| WOLFCAMP | 8,410 ft | -5,689 ft |
| STRAWN | 10,030 ft | -7,309 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 |
|---|---|
| 10,030–10,270 ft | Perforated |
Casing (3)
| Size | Set Depth | Cement |
|---|---|---|
| 13.375" | 400 ft | 400 sx |
| 9.625" | 3,555 ft | 350 sx |
| 7" | 8,250 ft | 600 sx |
Permit History (1)
Applications (1)
Records & Logs
7 completion filings on record.
+1 more filings
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
- 10,500 ft
- Drill Type
- Vertical
- County
- GLASSCOCK
- District
- 8
- Operator
- PIONEER NATURAL RES. USA INC.
- Completed
- 1985-04-01
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