42-219-36074

INJECTION

SUNDOWN UNIT

HOCKLEY County · District 8 · HILCORP ENERGY COMPANY · SLAUGHTER

Permits

Max Depth

5,400 ft

First Permit

1994-02-11

Latest Activity

2016-04-11

Lifespan

22 yrs

Regulatory Status

Schedule

ON SCHEDULE

Completion

2017-03-09

Shut-In

—

Plugged

—

P-5 Org Status: X

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

Cum Oil

— bbl

Cum Gas

— mcf

First Production

1993-01

Last Production

2026-07

Injection / Disposal

H-1 Injection Active UIC #000080880 permitted 2017-03-22

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 2025-12-01)

Operator History

Chain of Custody

AMOCO PRODUCTION COMPANY 1993-1997→ ALTURA ENERGY LTD. 1997-2000→ OCCIDENTAL PERMIAN LTD. 2000-2026

Lease Production

Production is reported at the lease level. View production data, decline curves, and history on the lease page.

Oil

production & DCA →

Formation Tops (6) Elevation 3,540 ft

CSV

Formation	Top Depth (MD)	Subsea (+above / −below SL)
RUSTLER	2,165 ft	+1,375 ft
YATES	2,740 ft	+800 ft
SAN ANDRES	4,858 ft	-1,318 ft
(SA) ZONE V	4,858 ft	-1,318 ft
(SA) ZONE VI	4,918 ft	-1,378 ft
(SA) ZONE VII	4,975 ft	-1,435 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
4,833–5,000 ft	Open hole
4,833–5,113 ft	Open hole

Casing (2)

Size	Set Depth	Cement
8.625"	488 ft	300 sx
5.5"	4,833 ft	800 sx

Permit History (2)

#814799 Recompletion Final Completion

SUNDOWN UNIT · 5,400 ft

2016-04-11

Spud 2017-02-18

#421001 Drill Final Completion

SUNDOWN UNIT · 5,200 ft

1994-02-11

Spud 1994-03-18

Applications (2)

#814799 A OCCIDENTAL PERMIAN LTD.

received 2016-04-04

#421001 A AMOCO PRODUCTION COMPANY

received 1994-02-09

Records & Logs

5 completion filings on record · 1 with log images at RRC.

W-2/G-1 2017-04-11

W-2/G-1 2000-04-11

W-2/G-1 1995-05-15

W-2/G-1 1994-07-28 log on file

W-2/G-1 1994-08-02

Completion packets + logs ↗ Wellbore filings ↗

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

Coordinates come from the RRC GIS backfill and usually appear within days of permit issuance. Located in HOCKLEY County.

Well Details

Well Number: 66
Max Depth: 5,400 ft
Drill Type: Vertical
County: HOCKLEY
District: 8
Operator: HILCORP ENERGY COMPANY
Completed: 2017-03-09

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: 3,435