42-479-38876
PRODUCINGALLEY
WEBB County · District 4 · HILCORP ENERGY COMPANY · VAQUILLAS RANCH (LOBO CONS.)
Permits
1
Max Depth
12,000 ft
First Permit
2004-10-01
Latest Activity
2004-10-01
Lifespan
< 1 yr
Regulatory Status
Schedule
ON SCHEDULE
Completion
2004-12-12
Shut-In
—
Plugged
—
P-5 Org Status: X
EWA / Permit operator mismatch
Scheduling: HILCORP ENERGY COMPANY ≠ Permit: NEWFIELD EXPLORATION 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
2004-12
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 (3) Elevation 629 ft (GR)
CSV| Formation | Top Depth (MD) | Subsea (+above / −below SL) |
|---|---|---|
| LOBO | 9,800 ft | -9,171 ft |
| LOBO 1 | 10,250 ft | -9,621 ft |
| LOBO 6C | 10,500 ft | -9,871 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 (5)
| Interval | Type |
|---|---|
| 10,271–10,275 ft | Perforated |
| 10,330–10,350 ft | Perforated |
| 10,540–10,570 ft | Perforated |
| 11,058–11,078 ft | Perforated |
| 11,204–11,234 ft | Perforated |
Casing (3)
| Size | Set Depth | Cement |
|---|---|---|
| 9.625" | 1,110 ft | 460 sx |
| 7" | 6,100 ft | 335 sx |
| 2.875" | 11,365 ft | 250 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
- 21 R
- Max Depth
- 12,000 ft
- Drill Type
- Vertical
- County
- WEBB
- District
- 4
- Operator
- HILCORP ENERGY COMPANY
- Completed
- 2004-12-12
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