42-489-30824
Final CompletionSAUZ RANCH MULATOS PAST.
WILLACY County · District 4 · CHESTNUT EXPLOR. AND PROD. INC. · WILLAMAR WEST (MIOCENE 6050 N)
Permits
2
Max Depth
6,400 ft
First Permit
1984-07-24
Latest Activity
2013-04-19
Lifespan
29 yrs
Regulatory Status
Schedule
OFF SCHEDULE
Completion
1984-10-26
Shut-In
—
Plugged
—
EWA / Permit operator mismatch
Scheduling: CHESTNUT EXPLOR. AND PROD. INC. ≠ Permit: FLINT OAK ENERGY, LLC
Resolved via: scheduling → CHESTNUT EXPLOR. AND PROD. 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
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 35 ft (DF)
CSV| Formation | Top Depth (MD) | Subsea (+above / −below SL) |
|---|---|---|
| GOLIAD (PLIOCENE) (Goliad) | 2,508 ft | -2,473 ft |
| LAGARTO (MIOCENE) (Lagarto) | 3,232 ft | -3,197 ft |
| MIOCENE (Miocene (undifferentiated)) | 5,034 ft | -4,999 ft |
| MIOCENE 5100 (Miocene (undifferentiated)) | 5,034 ft | -4,999 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 |
|---|---|
| 5,034–5,046 ft | Perforated |
| 6,060–6,072 ft | Perforated |
Casing (3)
| Size | Set Depth | Cement |
|---|---|---|
| 8.625" | 1,586 ft | 740 sx |
| 5.5" | 6,373 ft | 840 sx |
| 5.5" | 6,379 ft | 840 sx |
Permit History (2)
Applications (3)
Records & Logs
6 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
- 187
- Max Depth
- 6,400 ft
- Drill Type
- Vertical
- County
- WILLACY
- District
- 4
- Operator
- CHESTNUT EXPLOR. AND PROD. INC.
- Completed
- 1984-10-26
Operator
- Location
- DALLAS
- P-5 Status
- Delinquent (filed 2017-02-01)
- Cum Oil (all leases)
- 145,180 bbl
- Cum Gas (all leases)
- 177,198 mcf
- Activities
- OPRS/O
- Total Permits
- 5