42-321-00051

Final Completion

OHIO-SUN UNIT

MATAGORDA County · District 3 · MARATHON OIL COMPANY · MARKHAM N.-BAY CITY N (6650)

Permits

Max Depth

7,984 ft

First Permit

1980-04-11

Latest Activity

1994-07-13

Lifespan

14 yrs

Regulatory Status

Schedule

OFF SCHEDULE

Completion

—

Shut-In

—

Plugged

2009-08-23

EWA / Production operator mismatch

Scheduling: MARATHON OIL COMPANY ≠ Production: ALLEGIANT RESOURCES, LLC (reported 2025-01)

Resolved via: scheduling → MARATHON OIL COMPANY

Production Summary

Cum Oil

— bbl

Cum Gas

— mcf

First Production

1993-01

Last Production

2026-07

Operator History

Chain of Custody

MARATHON OIL COMPANY 1993-2002→ COMSTOCK OIL & GAS, INC. 2002-2004→ COMSTOCK OIL & GAS, LP 2004-2008→ REMORA MANAGEMENT, LLC 2016-2019→ ALLEGIANT RESOURCES, LLC 2019-2025

Lease Production

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

Formation Tops (3) Elevation 70 ft (KB)

CSV

Formation	Top Depth (MD)	Subsea (+above / −below SL)
MIOCENE (Miocene (undifferentiated))	2,500 ft	-2,430 ft
ANAHUAC	5,500 ft	-5,430 ft
FRIO	6,900 ft	-6,830 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 (7)

Interval	Type
6,630–? ft	Perforated
6,828–6,843 ft	Perforated
6,885–6,894 ft	Perforated
6,970–? ft	Perforated
7,370–7,375 ft	Perforated
?–6,976 ft	Perforated
?–7,740 ft	Perforated

Casing (3)

Size	Set Depth	Cement
10.75"	1,540 ft	800 sx
2.375"	6,834 ft	—
5.5"	7,972 ft	1,000 sx

Permit History (3)

#425799 Recompletion Final Completion

OHIO-SUN UNIT · 7,984 ft

1994-07-13

Spud 1994-04-26

#335604 Recompletion Final Completion

OHIO-SUN UNIT · 7,984 ft

1987-09-14

#77963 Recompletion Final Completion

OHIO SUN UNIT · 7,984 ft

1980-04-11

Applications (3)

#425799 A MARATHON OIL COMPANY

received 1994-07-13

#335604 A MARATHON OIL COMPANY

received 1987-09-08

#77963 A MARATHON OIL COMPANY

received 1980-04-11

Records & Logs

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

W-2/G-1 1994-07-12 log on file

W-2/G-1 1994-08-03

W-2/G-1 1987-10-30

W-2/G-1 1987-11-10

W-2/G-1 1980-09-16

W-2/G-1 1977-02-09

+2 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 MATAGORDA County.

Well Details

Well Number: 6A
Max Depth: 7,984 ft
Drill Type: Vertical
County: MATAGORDA
District: 3
Operator: MARATHON OIL COMPANY

Operator

Name: MARATHON OIL CO
Location: HOUSTON
P-5 Status: Active (filed 2025-08-14)
Cum Oil (all leases): 183,150,113 bbl
Cum Gas (all leases): 1,013,063,895 mcf
Activities: CSGD/P, G/PUR
Total Permits: 3,707