42-003-38866
INJECTIONUNIVERSITY SAN ANDRES UNIT
ANDREWS County · District 8 · HIGHMARK ENERGY OPERATING LLC · SHAFTER LAKE (SAN ANDRES)
Permits
1
Max Depth
4,800 ft
First Permit
2001-08-16
Latest Activity
2001-08-16
Lifespan
< 1 yr
Regulatory Status
Schedule
ON SCHEDULE
Completion
2002-01-28
Shut-In
—
Plugged
—
P-5 Org Status: Active
EWA / Permit operator mismatch
Scheduling: HIGHMARK ENERGY OPERATING LLC ≠ Permit: HENRY PETROLEUM LP
Resolved via: production → HIGHMARK ENERGY OPERATING, LLC
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
2001-08
Last Production
2026-07
Injection / Disposal
ANDREWS County disposal market →Permitted Volume
1,000 bbl/d
Max Pressure
2,000 psi
Injection Interval
4,450–4,700 ft
Injected (12mo)
94,331 bbl
Monthly injected volume (bbl, from H-10 filings through 2026-03-01)
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 3,200 ft
CSV| Formation | Top Depth (MD) | Subsea (+above / −below SL) |
|---|---|---|
| SANTA ROSA | 1,150 ft | +2,050 ft |
| YATES | 2,900 ft | +300 ft |
| SAN ANDRES | 4,450 ft | -1,250 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 |
|---|---|
| 4,484–4,642 ft | Perforated |
Casing (2)
| Size | Set Depth | Cement |
|---|---|---|
| 8.875" | 1,737 ft | 735 sx |
| 4.5" | 4,785 ft | 1,005 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 and the UL library can't be deep-linked — clicking copies the API for you to paste.
No GPS coordinates yet
Well Details
- Well Number
- 28W
- Max Depth
- 4,800 ft
- Drill Type
- Vertical
- County
- ANDREWS
- District
- 8
- Operator
- HIGHMARK ENERGY OPERATING LLC
- Completed
- 2002-01-28
Operator
- Location
- HOUSTON
- P-5 Status
- Active (filed 2026-03-09)
- Cum Oil (all leases)
- 4,551,977 bbl
- Cum Gas (all leases)
- 30,465,409 mcf
- Activities
- CSGD/G, G/PUR, GTHS/G, OPRS/G, OPRS/O
- Total Permits
- 15