42-481-33993
Final CompletionMCMILLIAN W. D.
WHARTON County · District 3 · CARRIZO OIL & GAS INC. · W. D. MCMILLAN (YEGUA 9650)
Permits
3
Max Depth
10,500 ft
First Permit
1997-08-25
Latest Activity
2011-05-13
Lifespan
14 yrs
Regulatory Status
Schedule
OFF SCHEDULE
Completion
1998-01-31
Shut-In
—
Plugged
2003-06-12
EWA / Production operator mismatch
Scheduling: CARRIZO OIL & GAS INC. ≠ Production: HILCORP ENERGY COMPANY (reported 2016-02)
EWA / Permit operator mismatch
Scheduling: CARRIZO OIL & GAS INC. ≠ Permit: CAZA OPERATING, LLC
Resolved via: scheduling → CARRIZO OIL & GAS 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
1998-01
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 (4) Elevation 19 ft (GR)
CSV| Formation | Top Depth (MD) | Subsea (+above / −below SL) |
|---|---|---|
| UPPER YEGUA (Yegua) | 8,592 ft | -8,573 ft |
| LOWER YEGUA (Yegua) | 9,642 ft | -9,623 ft |
| YEGUA 9600' SAND (Yegua) | 9,642 ft | -9,623 ft |
| YEGUA 9650 SAND (Yegua) | 9,642 ft | -9,623 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 (4)
| Interval | Type |
|---|---|
| 8,592–8,602 ft | Perforated |
| 8,592–8,702 ft | Perforated |
| 9,642–9,706 ft | Perforated |
| 9,692–9,716 ft | Perforated |
Casing (5)
| Size | Set Depth | Cement |
|---|---|---|
| 14" | 96 ft | — |
| 9.625" | 6,815 ft | 1,240 sx |
| 9.625" | 6,821 ft | 1,240 sx |
| 3.5" | 9,755 ft | 100 sx |
| 5.5" | 9,950 ft | 700 sx |
Permit History (3)
Applications (3)
Records & Logs
5 completion filings on record · 4 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
- 1R
- Max Depth
- 10,500 ft
- Drill Type
- Vertical
- County
- WHARTON
- District
- 3
- Operator
- CARRIZO OIL & GAS INC.
- Completed
- 1998-01-31
Operator
- Location
- HOUSTON
- P-5 Status
- Inactive (filed 2021-01-07)
- Cum Oil (all leases)
- 2,699,592 bbl
- Cum Gas (all leases)
- 336,056,277 mcf
- Total Permits
- 1,194