42-479-33696
Final CompletionHIRSCH ESTATE 858
WEBB County · District 4 · CONOCOPHILLIPS COMPANY · BIG COWBOY (LOBO)
Permits
1
Max Depth
9,500 ft
First Permit
1983-09-09
Latest Activity
1983-09-09
Lifespan
< 1 yr
Regulatory Status
Schedule
OFF SCHEDULE
Completion
—
Shut-In
—
Plugged
2009-08-06
EWA / Production operator mismatch
Scheduling: CONOCOPHILLIPS COMPANY ≠ Production: CONOCO INC. (reported 2002-06)
EWA / Permit operator mismatch
Scheduling: CONOCOPHILLIPS COMPANY ≠ Permit: HNG OIL COMPANY
Resolved via: scheduling → CONOCOPHILLIPS 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
2009-08
Lease Production
Production is reported at the lease level. View production data, decline curves, and history on the lease page.
Formation Tops (2) Elevation 493 ft (GR)
CSV| Formation | Top Depth (MD) | Subsea (+above / −below SL) |
|---|---|---|
| QUEEN CITY | 2,500 ft | -2,007 ft |
| TD WILCOX | 4,600 ft | -4,107 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 (3)
| Interval | Type |
|---|---|
| 7,944–7,986 ft | Perforated |
| 8,392–8,422 ft | Perforated |
| 8,457–8,594 ft | Perforated |
Casing (4)
| Size | Set Depth | Cement |
|---|---|---|
| 9.625" | 511 ft | 230 sx |
| 7" | 7,234 ft | 445 sx |
| 2.375" | 8,300 ft | — |
| 4.5" | 8,806 ft | 240 sx |
Permit History (1)
Applications (1)
Records & Logs
4 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
- 9,500 ft
- Drill Type
- Vertical
- County
- WEBB
- District
- 4
- Operator
- CONOCOPHILLIPS COMPANY
Operator
- Name
- CONOCOPHILLIPS CO
- Location
- MIDLAND
- P-5 Status
- Active (filed 2026-02-03)
- Cum Oil (all leases)
- 82,638,100 bbl
- Cum Gas (all leases)
- 2,799,661,718 mcf
- Activities
- CSGD/G, CSGD/P, G/PUR, GTHS/C, GTHS/G, GTHS/O, OPRS/G, OPRS/O
- Total Permits
- 3,280