42-501-36425
Final CompletionCORNELL UNIT
YOAKUM County · District 8 · HILCORP ENERGY COMPANY · WASSON
Permits
1
Max Depth
5,695 ft
First Permit
2014-07-23
Latest Activity
2014-07-23
Lifespan
< 1 yr
Regulatory Status
Schedule
OFF SCHEDULE
Completion
2014-09-23
Shut-In
—
Plugged
—
EWA / Permit operator mismatch
Scheduling: HILCORP ENERGY COMPANY ≠ Permit: XTO ENERGY INC.
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)
21,528 bbl
Monthly injected volume (bbl, from H-10 filings through 2025-09-01)
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 (12) Elevation 3,614 ft (GR)
CSV| Formation | Top Depth (MD) | Subsea (+above / −below SL) |
|---|---|---|
| YATES | 2,908 ft | +706 ft |
| SAN ANDRES - HIGH FLOWS, H2S, CO (San Andres) | 4,664 ft | -1,050 ft |
| CLEARFORK - ACTIVE CO2 FLOOD (Clear Fork) | — | — |
| DEVONIAN | — | — |
| GLORIETA | — | — |
| LEONARD | — | — |
| MISSISSIPPIAN | — | — |
| PENNSYLVANIAN | — | — |
| RED BED-SANTA ROSA (Santa Rosa) | — | — |
| STRAWN | — | — |
| WICHITA (Wichita-Albany) | — | — |
| WOLFCAMP | — | — |
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 |
|---|---|
| 4,954–5,234 ft | Perforated |
Casing (2)
| Size | Set Depth | Cement |
|---|---|---|
| 8.625" | 2,157 ft | 875 sx |
| 5.5" | 5,525 ft | 1,405 sx |
Permit History (1)
Applications (1)
Records & Logs
2 completion filings on record · 2 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
- 121
- Max Depth
- 5,695 ft
- Drill Type
- Vertical
- County
- YOAKUM
- District
- 8
- Operator
- HILCORP ENERGY COMPANY
- Completed
- 2014-09-23
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
- 3,428