42-479-35014
PRODUCINGHIRSCH ESTATE 2093
WEBB County · District 4 · HILCORP ENERGY COMPANY · BIG COWBOY (LOBO)
Permits
2
Max Depth
9,550 ft
First Permit
1990-03-15
Latest Activity
1990-03-15
Lifespan
< 1 yr
Regulatory Status
Schedule
ON SCHEDULE
Completion
—
Shut-In
—
Plugged
—
P-5 Org Status: X
EWA / Permit operator mismatch
Scheduling: HILCORP ENERGY COMPANY ≠ Permit: ENRON OIL & GAS COMPANY
Resolved via: production → HILCORP ENERGY COMPANY
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 451 ft (GL)
CSV| Formation | Top Depth (MD) | Subsea (+above / −below SL) |
|---|---|---|
| QUEEN CITY | 2,620 ft | -2,169 ft |
| WICOX | 4,660 ft | -4,209 ft |
| WILCOX | 4,660 ft | -4,209 ft |
| LOBO | 7,350 ft | -6,899 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 (7)
| Interval | Type |
|---|---|
| 7,437–7,454 ft | Perforated |
| 7,437–7,456 ft | Perforated |
| 8,036–8,198 ft | Perforated |
| 8,118–8,125 ft | Perforated |
| 8,118–8,198 ft | Perforated |
| 8,131–8,140 ft | Perforated |
| 8,176–8,198 ft | Perforated |
Casing (5)
| Size | Set Depth | Cement |
|---|---|---|
| 9.625" | 1,002 ft | 345 sx |
| 7" | 7,006 ft | — |
| 2.875" | 8,537 ft | — |
| 7" | — | — |
| 2.875" | — | — |
Permit History (2)
Applications (2)
Records & Logs
5 completion filings on record · 1 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
- 3
- Max Depth
- 9,550 ft
- Drill Type
- Vertical
- County
- WEBB
- District
- 4
- Operator
- HILCORP ENERGY COMPANY
Operator
- Name
- HILCORP ENGY CO
- Location
- HOUSTON
- P-5 Status
- X (filed 2026-03-27)
- Cum Oil (all leases)
- 75,699,281 bbl
- Cum Gas (all leases)
- 1,779,939,645 mcf
- Activities
- CSGD/G, CSGD/P, G/PUR, GTHS/C, GTHS/G, GTHS/O, OPRS/G, OPRS/O
- Total Permits
- 3,445