42-479-34313
Final CompletionSTANFORD P.H.
WEBB County · District 4 · ROSETTA RESOURCES OPERATING LP · BIG COWBOY (LOBO)
Permits
1
Max Depth
9,800 ft
First Permit
1986-01-07
Latest Activity
1986-01-07
Lifespan
< 1 yr
Regulatory Status
Schedule
OFF SCHEDULE
Completion
1986-11-06
Shut-In
—
Plugged
2012-07-13
EWA / Production operator mismatch
Scheduling: ROSETTA RESOURCES OPERATING LP ≠ Production: MICHAEL PETROLEUM CORPORATION (reported 1998-05)
EWA / Permit operator mismatch
Scheduling: ROSETTA RESOURCES OPERATING LP ≠ Permit: MOBIL PRODUCING TX. & N.M. INC.
Resolved via: scheduling → ROSETTA RESOURCES OPERATING LP
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
2012-07
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 (3) Elevation 550 ft (GR)
CSV| Formation | Top Depth (MD) | Subsea (+above / −below SL) |
|---|---|---|
| QUEEN CITY | 3,215 ft | -2,665 ft |
| CARRIZO WILCOX (Carrizo) | 4,753 ft | -4,203 ft |
| CALLAGHAN (LOBO) | 8,185 ft | -7,635 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 (1)
| Interval | Type |
|---|---|
| 8,204–8,308 ft | Perforated |
Casing (2)
| Size | Set Depth | Cement |
|---|---|---|
| 10.75" | 1,018 ft | 596 sx |
| 7.625" | 7,189 ft | 1,800 sx |
Permit History (1)
Applications (1)
Records & Logs
3 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
- 1
- Max Depth
- 9,800 ft
- Drill Type
- Vertical
- County
- WEBB
- District
- 4
- Operator
- ROSETTA RESOURCES OPERATING LP
- Completed
- 1986-11-06
Operator
- Name
- ROSETTA RES OPER LP
- Location
- SAN ANTONIO
- P-5 Status
- Active (filed 2025-10-01)
- Cum Oil (all leases)
- 28,573,490 bbl
- Cum Gas (all leases)
- 1,121,692,409 mcf
- Activities
- G/PUR, GTHS/G, OPRS/G, OPRS/O
- Total Permits
- 1,214