42-219-35001

Final Completion Horizontal

EAST MALLET UNIT

HOCKLEY County · District 8 · HILCORP ENERGY COMPANY · SLAUGHTER

Permits

Max Depth

5,950 ft

First Permit

1986-09-23

Latest Activity

1995-06-26

Lifespan

9 yrs

Regulatory Status

Schedule

OFF SCHEDULE

Completion

1990-09-14

Shut-In

—

Plugged

—

EWA / Permit operator mismatch

Scheduling: HILCORP ENERGY COMPANY ≠ Permit: MOBIL PRODUCING TX. & N.M. INC.

Resolved via: production → HILCORP ENERGY COMPANY

Production Summary

Cum Oil

— bbl

Cum Gas

— mcf

First Production

1993-01

Last Production

2026-07

Injection / Disposal

H-1 Injection Active UIC #000071443 permitted 2002-01-18

Permitted Volume

1,950 bbl/d

Max Pressure

2,300 psi

Injection Interval

4,700–5,300 ft

Injected (12mo)

92,945 bbl

Monthly injected volume (bbl, from H-10 filings through 2025-12-01)

Operator History

Chain of Custody

MOBIL PRODUCING TX. & N.M. INC. 1993-2004→ APACHE CORPORATION 2004-2025→ HILCORP ENERGY COMPANY 2025-2026

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 (3) Elevation 3,595 ft (KB)

CSV

Formation	Top Depth (MD)	Subsea (+above / −below SL)
RED BED / SR	1,100 ft	+2,495 ft
YATES	2,600 ft	+995 ft
SAN ANDRES	4,900 ft	-1,305 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
4,950–5,000 ft	Perforated
4,950–5,044 ft	Perforated
4,974–5,005 ft	Perforated
4,980–4,961 ft	Perforated
5,019–5,044 ft	Perforated

Casing (6)

Size	Set Depth	Cement
8.625"	457 ft	350 sx
8.625"	457 ft	—
8.625"	510 ft	350 sx
5.5"	5,100 ft	1,100 sx
5.5"	5,100 ft	—
5.5"	—	1,100 sx

Permit History (2)

#437256 Recompletion Final Completion

EAST MALLET UNIT · 5,950 ft

1995-06-26

Spud 1995-06-30

#320895 Drill Final Completion

EAST MALLET UNIT · 5,100 ft

1986-09-23

Applications (2)

#437256 A MOBIL PRODUCING TX. & N.M. INC.

received 1995-06-26

#320895 A MOBIL PRODUCING TX. & N.M. INC.

received 1986-09-22

Records & Logs

10 completion filings on record · 2 with log images at RRC.

W-2/G-1 2023-11-21

W-2/G-1 1995-10-27 log on file

W-2/G-1 1990-10-15

W-2/G-1 1989-10-19

W-2/G-1 1987-05-07

+4 more filings

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: 127WH
Max Depth: 5,950 ft
Drill Type: Horizontal
County: HOCKLEY
District: 8
Operator: HILCORP ENERGY COMPANY
Completed: 1990-09-14

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