42-501-31873
Long String CasingCORNELL UNIT
YOAKUM County · District 8 · HILCORP ENERGY COMPANY · WASSON
Permits
1
Max Depth
5,400 ft
First Permit
1980-08-01
Latest Activity
1980-08-01
Lifespan
< 1 yr
Regulatory Status
Schedule
OFF SCHEDULE
Completion
2011-06-08
Shut-In
—
Plugged
2019-05-06
EWA / Permit operator mismatch
Scheduling: HILCORP ENERGY COMPANY ≠ Permit: CORNELL OIL CO.
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
1993-01
Last Production
2026-07
Injection / Disposal
Permitted Volume
2,000 bbl/d
Max Pressure
2,150 psi
Injection Interval
4,300–5,500 ft
Injected (12mo)
—
Monthly injected volume (bbl, from H-10 filings through 2019-09-01)
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 3,591 ft (GL)
CSV| Formation | Top Depth (MD) | Subsea (+above / −below SL) |
|---|---|---|
| QUEEN | 3,666 ft | -75 ft |
| GRAYBURG | 4,343 ft | -752 ft |
| SAN ANDRES | 4,574 ft | -983 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 (2)
| Interval | Type |
|---|---|
| 4,930–5,133 ft | Perforated |
| 4,930–5,184 ft | Perforated |
Casing (5)
| Size | Set Depth | Cement |
|---|---|---|
| 8.625" | 408 ft | 350 sx |
| 8.625" | 409 ft | 350 sx |
| 2.875" | 5,307 ft | — |
| 5.5" | 5,350 ft | 1,150 sx |
| 5.5" | — | 1,100 sx |
Permit History (1)
Applications (1)
Records & Logs
6 completion filings on record.
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
- 6378
- Max Depth
- 5,400 ft
- Drill Type
- Vertical
- County
- YOAKUM
- District
- 8
- Operator
- HILCORP ENERGY COMPANY
- Completed
- 2011-06-08
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
- 3,439