42-507-31198
Final CompletionPRYOR RANCH
ZAVALA County · District 1 · MCDAY ENERGY CORP. · WINN-DULCE (DEL MONTE)
Permits
1
Max Depth
3,500 ft
First Permit
1979-07-18
Latest Activity
1979-07-18
Lifespan
< 1 yr
Regulatory Status
Schedule
OFF SCHEDULE
Completion
1979-07-19
Shut-In
—
Plugged
—
EWA / Permit operator mismatch
Scheduling: MCDAY ENERGY CORP. ≠ Permit: SUNDOWN DRILLING CO.
Resolved via: production → 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
Operator History
originally filed by SUNDOWN DRILLING CO. — asset transferred
Lease Production
Production is reported at the lease level. View production data, decline curves, and history on the lease page.
Formation Tops (6) Elevation 689 ft (KB)
CSV| Formation | Top Depth (MD) | Subsea (+above / −below SL) |
|---|---|---|
| ESCONDIDO | 1,925 ft | -1,236 ft |
| OLMOS/LIT (Olmos) | 2,478 ft | -1,789 ft |
| OLMOS | 2,619 ft | -1,930 ft |
| DEL MONTE | 2,840 ft | -2,151 ft |
| BRACERO | 2,881 ft | -2,192 ft |
| FLAINE | 2,964 ft | -2,275 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 (2)
| Interval | Type |
|---|---|
| 2,620–2,626 ft | Perforated |
| 2,842–2,852 ft | Perforated |
Casing (3)
| Size | Set Depth | Cement |
|---|---|---|
| 8.625" | 276 ft | 150 sx |
| 2.375" | 2,805 ft | — |
| 4.5" | 3,040 ft | 660 sx |
Permit History (1)
Applications (1)
Records & Logs
3 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
- 15
- Max Depth
- 3,500 ft
- Drill Type
- Vertical
- County
- ZAVALA
- District
- 1
- Operator
- MCDAY ENERGY CORP.
- Completed
- 1979-07-19
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