42-507-31553
SHUT INPRYOR RANCH
ZAVALA County · District 1 · MCDAY ENERGY CORP. · WINN-DULCE (DEL MONTE-OIL)
Permits
1
Max Depth
3,250 ft
First Permit
1981-08-12
Latest Activity
1981-08-12
Lifespan
< 1 yr
Regulatory Status
Schedule
ON SCHEDULE
Completion
1982-12-09
Shut-In
—
Plugged
—
P-5 Org Status: X
EWA / Permit operator mismatch
Scheduling: MCDAY ENERGY CORP. ≠ Permit: WINN EXPLORATION/DULCE COMPANY
Resolved via: scheduling → MCDAY ENERGY CORP.
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
2026-07
Injection / Disposal
Permitted Volume
600 bbl/d
Max Pressure
2,600 psi
Injection Interval
2,968–2,978 ft
Injected (12mo)
—
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 (5) Elevation 689 ft (GR)
CSV| Formation | Top Depth (MD) | Subsea (+above / −below SL) |
|---|---|---|
| ESCONDIDO | 1,907 ft | -1,218 ft |
| OLMOS | 2,560 ft | -1,871 ft |
| DEL MONTE | 2,963 ft | -2,274 ft |
| BRACERO | 3,024 ft | -2,335 ft |
| ELAINE | 3,112 ft | -2,423 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 |
|---|---|
| 2,968–2,978 ft | Perforated |
Casing (3)
| Size | Set Depth | Cement |
|---|---|---|
| 8.625" | 400 ft | 280 sx |
| 2.375" | 2,942 ft | — |
| 4.5" | 3,124 ft | 685 sx |
Permit History (1)
Applications (1)
Records & Logs
2 completion filings on record.
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
- 35
- Max Depth
- 3,250 ft
- Drill Type
- Vertical
- County
- ZAVALA
- District
- 1
- Operator
- MCDAY ENERGY CORP.
- Completed
- 1982-12-09
Operator
- Name
- MCDAY ENGY CORP
- Location
- PLANO
- P-5 Status
- X (filed 2026-06-02)
- Cum Oil (all leases)
- 1,564,984 bbl
- Cum Gas (all leases)
- 1,473,807 mcf
- Activities
- OPRS/G, OPRS/O
- Total Permits
- 52