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CONROE FIELD UNIT

MONTGOMERY County · District 3 · HIGHMARK ENERGY OPERATING LLC · CONROE

Permits

Max Depth

5,610 ft

First Permit

1984-04-18

Latest Activity

1986-09-16

Lifespan

2 yrs

Regulatory Status

Schedule

ON SCHEDULE

Completion

1998-01-15

Shut-In

—

Plugged

—

P-5 Org Status: Active

EWA / Permit operator mismatch

Scheduling: HIGHMARK ENERGY OPERATING LLC ≠ Permit: EXXON CORP.

Resolved via: production → HIGHMARK ENERGY OPERATING, LLC

Production Summary

Cum Oil

— bbl

Cum Gas

— mcf

First Production

1993-01

Last Production

2026-07

Operator History

Chain of Custody

EXXON CORP. 1993-2000→ EXXON MOBIL CORPORATION 2000-2006→ WAPITI OPERATING, LLC 2006-2009→ DENBURY ONSHORE, LLC 2010-2024→ HIGHMARK ENERGY OPERATING, LLC 2024-2026

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)

CSV

Formation	Top Depth (MD)
2ND UPPER COCKFIELD	4,874 ft
2ND MAIN CONROE	5,002 ft
3RD MAIN CONROE	5,049 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 (4)

Interval	Type
4,868–4,882 ft	Perforated
4,872–4,882 ft	Perforated
5,002–5,008 ft	Perforated
5,012–5,018 ft	Perforated

Casing (2)

Size	Set Depth	Cement
10.75"	1,599 ft	1,135 sx
7"	5,108 ft	385 sx

Permit History (2)

#320286 Recompletion U

CONROE FIELD UNIT · 5,110 ft

1986-09-16

#236019 Drill Final Completion

CONROE FIELD UNIT · 5,610 ft

1984-04-18

Spud 1984-06-28

Applications (2)

#320286 A EXXON CORP.

received 1986-09-08

#236019 A EXXON CORP.

received 1984-04-12

Records & Logs

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

W-2/G-1 1998-05-27

W-2/G-1 1987-03-24 log on file

W-2/G-1 1986-05-26 log on file

W-2/G-1 1984-08-06

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 MONTGOMERY County.

Well Details

Well Number: 1016
Max Depth: 5,610 ft
Drill Type: Vertical
County: MONTGOMERY
District: 3
Operator: HIGHMARK ENERGY OPERATING LLC
Completed: 1998-01-15

Operator

Name: HIGHMARK ENGY OPER, LLC
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