42-135-02437

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ALMA

ECTOR County · District 8 · HIGHMARK ENERGY OPERATING LLC · TXL (DEVONIAN)

Permits

1

Max Depth

9,877 ft

First Permit

2009-07-13

Latest Activity

2009-07-13

Lifespan

< 1 yr

Regulatory Status

Schedule

OFF SCHEDULE

Completion

Shut-In

Plugged

!

EWA / Permit operator mismatch

Scheduling: HIGHMARK ENERGY OPERATING LLC ≠ Permit: CHESAPEAKE OPERATING, INC.

Resolved via: productionHIGHMARK ENERGY OPERATING, LLC

Production Summary

Cum Oil

bbl

Cum Gas

mcf

First Production

1993-01

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 (1) Elevation 3,331 ft (GR)

CSV
FormationTop Depth (MD)Subsea (+above / −below SL)
TUBB 6,168 ft-2,837 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 (4)

IntervalType
6,199–6,824 ftPerforated
?–7,799 ftPerforated
?–8,065 ftPerforated
?–8,488 ftPerforated

Casing (3)

SizeSet DepthCement
13.375"256 ft250 sx
8.625"4,202 ft3,000 sx
5.5"9,843 ft1,300 sx

Permit History (1)

Applications (1)

#682926 A CHESAPEAKE OPERATING, INC.
received 2009-07-09

Records & Logs

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

W-2/G-1 2009-10-08 log on file
W-2/G-1 2010-02-12
W-2/G-1 1975-03-06
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 ECTOR County.

Well Details

Well Number
4
Max Depth
9,877 ft
Drill Type
Vertical
County
ECTOR
District
8

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