42-479-35329
Final CompletionSOUTH CALLAGHAN RANCH
WEBB County · District 4 · ROSETTA RESOURCES OPERATING LP · SMALL COWBOY (LOBO 6)
Permits
2
Max Depth
10,000 ft
First Permit
1991-10-25
Latest Activity
1991-10-25
Lifespan
< 1 yr
Regulatory Status
Schedule
OFF SCHEDULE
Completion
1992-02-20
Shut-In
—
Plugged
2012-11-14
EWA / Production operator mismatch
Scheduling: ROSETTA RESOURCES OPERATING LP ≠ Production: MICHAEL PETROLEUM CORPORATION (reported 1998-08)
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
2012-11
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 543 ft (GL)
CSV| Formation | Top Depth (MD) | Subsea (+above / −below SL) |
|---|---|---|
| WILCOX | 4,810 ft | -4,267 ft |
| MIDDLE WILCOX (Wilcox) | 6,700 ft | -6,157 ft |
| LOBO 6 | 8,150 ft | -7,607 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 |
|---|---|
| 8,195–8,202 ft | Perforated |
| 8,205–8,212 ft | Perforated |
| 8,258–8,271 ft | Perforated |
Casing (3)
| Size | Set Depth | Cement |
|---|---|---|
| 16" | 60 ft | — |
| 9.625" | 505 ft | 220 sx |
| 7" | 7,440 ft | 350 sx |
Permit History (2)
Applications (2)
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
- 51
- Max Depth
- 10,000 ft
- Drill Type
- Vertical
- County
- WEBB
- District
- 4
- Operator
- ROSETTA RESOURCES OPERATING LP
- Completed
- 1992-02-20
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