← Wells

42-003-05346

Final Completion

UNIVERSITY -141-

ANDREWS County · District 8 · HIGHMARK ENERGY OPERATING LLC · SHAFTER LAKE (CLEAR FORK)

Permits

1

Max Depth

10,650 ft

First Permit

1988-08-18

Latest Activity

1988-08-18

Lifespan

< 1 yr

Regulatory Status

Schedule

OFF SCHEDULE

Completion

—

Shut-In

—

Plugged

—

!

EWA / Permit operator mismatch

Scheduling: HIGHMARK ENERGY OPERATING LLC ≠ Permit: ARCO OIL & GAS CO.

Resolved via: production → HIGHMARK ENERGY OPERATING, LLC

Production Summary

Cum Oil

— bbl

Cum Gas

— mcf

First Production

1993-01

Last Production

2026-07

Injection / Disposal

ANDREWS County disposal market →
H-1 Injection Active UIC #000065667 permitted 1988-03-12

Permitted Volume

10,000 bbl/d

Max Pressure

2,500 psi

Injection Interval

9,808–10,600 ft

Injected (12mo)

—

Monthly injected volume (bbl, from H-10 filings through 2026-03-01)

Operator History

Chain of Custody

HENRY PETROLEUM CORP. 1993-2001→ HENRY PETROLEUM LP 2001-2008→ COG OPERATING LLC 2009-2012→ LEGACY RESERVES OPERATING LP 2013-2020→ HIGHMARK ENERGY OPERATING, LLC 2023-2026

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)

CSV
FormationTop Depth (MD)
RUSTLER 1,880 ft
YATES 3,020 ft
GRAYBURG 4,353 ft
SAN ANDRES 4,580 ft
WOLFCAMP 8,210 ft
DEVONIAN 9,384 ft

As reported by operators on W-2/G-1 completion filings (RRC wellbore records). Depths are measured depth; names appear as filed. View filings & logs at RRC ↗

Perforations (3)

IntervalType
9,808–10,600 ftPerforated
9,808–10,618 ftPerforated
?–6,760 ftPerforated

Casing (4)

SizeSet DepthCement
13.375"284 ft250 sx
9.625"4,073 ft1,500 sx
4.5"9,716 ft640 sx
7"9,808 ft750 sx

Permit History (1)

#350141 Recompletion Final Completion

UNIV.NOS #141A,#155F,#173J,#174K · 10,650 ft

1988-08-18

Applications (1)

#350141 A ARCO OIL & GAS CO.
received 1988-08-15

Records & Logs

5 completion filings on record.

W-2/G-1 2022-09-09
W-2/G-1 1992-09-14
W-2/G-1 1988-09-20
W-2/G-1 1988-10-01
W-2/G-1 1984-01-12
Completion packets + logs ↗ Wellbore filings ↗

Completion packets open directly (post-2011 filings include attached logs). Log images and the UL library 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 ANDREWS County.

Well Details

Well Number
A 3
Max Depth
10,650 ft
Drill Type
Vertical
County
ANDREWS
District
8
Operator
HIGHMARK ENERGY OPERATING LLC

Operator

Location
HOUSTON
P-5 Status
Active (filed 2026-03-09)
Cum Oil (all leases)
4,551,977 bbl
Cum Gas (all leases)
30,465,409 mcf
Activities
CSGD/G, G/PUR, GTHS/G, OPRS/G, OPRS/O
Total Permits
15