42-003-01301
Final CompletionUNIVERSITY -C-
ANDREWS County · District 8 · HIGHMARK ENERGY OPERATING LLC · SHAFTER LAKE (WOLFCAMP)
Permits
4
Max Depth
11,698 ft
First Permit
1987-06-30
Latest Activity
2002-03-12
Lifespan
15 yrs
Regulatory Status
Schedule
OFF SCHEDULE
Completion
2000-12-01
Shut-In
—
Plugged
—
EWA / Production operator mismatch
Scheduling: HIGHMARK ENERGY OPERATING LLC ≠ Production: LEGACY RESERVES OPERATING LP (reported 2020-10)
EWA / Permit operator mismatch
Scheduling: HIGHMARK ENERGY OPERATING LLC ≠ Permit: HENRY PETROLEUM LP
Resolved via: scheduling → 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
1993-01
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 3,230 ft (GR)
CSV| Formation | Top Depth (MD) | Subsea (+above / −below SL) |
|---|---|---|
| WOLFCAMP | 7,980 ft | -4,750 ft |
| DEVONIAN | 9,400 ft | -6,170 ft |
| ELLENBURGER | 11,630 ft | -8,400 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 |
|---|---|
| 4,510–4,662 ft | Perforated |
| 7,980–8,021 ft | Perforated |
| 9,490–9,542 ft | Perforated |
| 11,604–11,671 ft | Perforated |
| ?–8,445 ft | Perforated |
Casing (15)
| Size | Set Depth | Cement |
|---|---|---|
| 13.375" | 196 ft | 165 sx |
| 13.375" | 197 ft | 165 sx |
| 13.375" | 197 ft | 165 sx |
| 13.375" | 197 ft | 165 sx |
| 9.625" | 4,037 ft | 2,800 sx |
| 9.625" | 4,038 ft | 2,800 sx |
| 9.625" | 4,038 ft | 2,800 sx |
| 2.875" | 9,585 ft | — |
| 2.375" | 9,616 ft | — |
| 2.5" | 9,620 ft | — |
| 7" | 10,121 ft | 870 sx |
| 7" | 10,121 ft | 870 sx |
| 7" | 10,123 ft | 870 sx |
| 4.5" | 11,698 ft | 900 sx |
| 4.5" | 11,698 ft | 969 sx |
Permit History (4)
UNIVERSITY "C" · 11,698 ft
2002-03-12
Spud 2002-03-18
UNIVERSITY -C- · 11,698 ft
2000-11-20
Spud 2000-11-22
UNIVERSITY "C" · 11,698 ft
1993-09-02
Spud 1993-08-26
UNIVERSITY "C" · 11,250 ft
1987-06-30
Applications (4)
Records & Logs
11 completion filings on record · 7 with log images at RRC.
+5 more filings
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
- 1B
- Max Depth
- 11,698 ft
- Drill Type
- Vertical
- County
- ANDREWS
- District
- 8
- Operator
- HIGHMARK ENERGY OPERATING LLC
- Completed
- 2000-12-01
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