42-479-33818
PRODUCINGHIRSCH ESTATE 1771
WEBB County · District 4 · HILCORP ENERGY COMPANY · BIG COWBOY (LOBO)
Permits
1
Max Depth
10,000 ft
First Permit
1984-02-07
Latest Activity
1984-02-07
Lifespan
< 1 yr
Regulatory Status
Schedule
ON SCHEDULE
Completion
1984-07-31
Shut-In
—
Plugged
—
P-5 Org Status: X
EWA / Permit operator mismatch
Scheduling: HILCORP ENERGY COMPANY ≠ Permit: HNG OIL 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 (2) Elevation 530 ft (GR)
CSV| Formation | Top Depth (MD) | Subsea (+above / −below SL) |
|---|---|---|
| QUEEN CITY | 2,580 ft | -2,050 ft |
| WILCOX TD (Wilcox) | 4,645 ft | -4,115 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 |
|---|---|
| 7,705–7,793 ft | Perforated |
| 8,632–8,698 ft | Perforated |
Casing (3)
| Size | Set Depth | Cement |
|---|---|---|
| 9.625" | 516 ft | 230 sx |
| 7" | 7,210 ft | 615 sx |
| 4.5" | 8,863 ft | 165 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
- 2
- Max Depth
- 10,000 ft
- Drill Type
- Vertical
- County
- WEBB
- District
- 4
- Operator
- HILCORP ENERGY COMPANY
- Completed
- 1984-07-31
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
- 3,430