42-003-40482

PRODUCING

LOWE M. R. 15

ANDREWS County · District 8 · HIGHMARK ENERGY OPERATING LLC · FULLERTON

Permits

1

Max Depth

7,500 ft

First Permit

2008-04-25

Latest Activity

2008-04-25

Lifespan

< 1 yr

Regulatory Status

Schedule

ON SCHEDULE

Completion

2008-05-31

Shut-In

Plugged

P-5 Org Status: Active

!

EWA / Permit operator mismatch

Scheduling: HIGHMARK ENERGY OPERATING LLC ≠ Permit: COG OPERATING LLC

Resolved via: productionHIGHMARK ENERGY OPERATING, LLC

Production Summary

Cum Oil

bbl

Cum Gas

mcf

First Production

2006-07

Last Production

2026-07

Lease Production

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

Formation Tops (6) Elevation 3,283 ft

CSV
FormationTop Depth (MD)Subsea (+above / −below SL)
RUSTLER 1,866 ft+1,417 ft
YATES 2,980 ft+303 ft
7 RIVERS (Seven Rivers)3,215 ft+68 ft
GRAYBURG 4,040 ft-757 ft
GLORIETA 5,720 ft-2,437 ft
CLEARFORK (Clear Fork)6,224 ft-2,941 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)

IntervalType
6,224–6,284 ftPerforated
7,076–7,122 ftPerforated

Casing (2)

SizeSet DepthCement
8.625"1,848 ft800 sx
5.5"7,350 ft1,300 sx

Permit History (1)

Applications (1)

#659300 A COG OPERATING LLC
received 2008-04-09

Records & Logs

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

W-2/G-1 2008-06-19 log on file
W-2/G-1 2008-11-10
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
4
Max Depth
7,500 ft
Drill Type
Vertical
County
ANDREWS
District
8
Completed
2008-05-31

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