42-219-36077
Final CompletionSUNDOWN UNIT
HOCKLEY County · District 8 · HILCORP ENERGY COMPANY · SLAUGHTER
Permits
2
Max Depth
5,400 ft
First Permit
1994-02-11
Latest Activity
2016-04-06
Lifespan
22 yrs
Regulatory Status
Schedule
OFF SCHEDULE
Completion
2016-05-05
Shut-In
—
Plugged
2019-06-04
EWA / Production operator mismatch
Scheduling: HILCORP ENERGY COMPANY ≠ Production: OCCIDENTAL PERMIAN LTD. (reported 2026-04)
EWA / Permit operator mismatch
Scheduling: HILCORP ENERGY COMPANY ≠ Permit: OCCIDENTAL PERMIAN LTD.
Resolved via: production → OCCIDENTAL PERMIAN LTD.
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
5,300 bbl/d
Max Pressure
2,300 psi
Injection Interval
4,600–5,300 ft
Injected (12mo)
—
Monthly injected volume (bbl, from H-10 filings through 2019-12-01)
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 (15) Elevation 3,541 ft
CSV| Formation | Top Depth (MD) | Subsea (+above / −below SL) |
|---|---|---|
| RUSTLER | 2,178 ft | +1,363 ft |
| YATES | 2,786 ft | +755 ft |
| YATES - OVERPRESSURE, INERT GAS (Yates) | 2,788 ft | +753 ft |
| SAN ANDRES - ACTIVE CO2 FLOOD; H (San Andres) | 4,799 ft | -1,258 ft |
| (SA) ZONE V | 4,866 ft | -1,325 ft |
| (SA) ZONE VI | 4,925 ft | -1,384 ft |
| (SA) ZONE VII | 4,979 ft | -1,438 ft |
| ABO | — | — |
| CANYON | — | — |
| CISCO | — | — |
| CLEARFORK (Clear Fork) | — | — |
| RED BED-SANTA ROSA (Santa Rosa) | — | — |
| STRAWN | — | — |
| WICHITA ALBANY (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 (2)
| Interval | Type |
|---|---|
| 4,842–5,001 ft | Open hole |
| 4,842–5,104 ft | Open hole |
Casing (2)
| Size | Set Depth | Cement |
|---|---|---|
| 8.625" | 485 ft | 300 sx |
| 5.5" | 4,842 ft | 725 sx |
Permit History (2)
Applications (2)
Records & Logs
4 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
- 71WI
- Max Depth
- 5,400 ft
- Drill Type
- Vertical
- County
- HOCKLEY
- District
- 8
- Operator
- HILCORP ENERGY COMPANY
- Completed
- 2016-05-05
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