42-321-00131

Final Completion

OHIO-SUN UNIT

MATAGORDA County · District 3 · MARATHON OIL COMPANY · MARKHAM N.-BAY CITY N. (7550)

Permits

Max Depth

8,821 ft

First Permit

1980-06-18

Latest Activity

1989-02-23

Lifespan

9 yrs

Regulatory Status

Schedule

OFF SCHEDULE

Completion

—

Shut-In

—

Plugged

—

Production Summary

Cum Oil

— bbl

Cum Gas

— mcf

First Production

1993-01

Last Production

2026-07

Injection / Disposal

W-14 Disposal Active UIC #000086342 permitted 1997-06-13

Permitted Volume

15,000 bbl/d

Max Pressure

750 psi

Injection Interval

2,000–5,470 ft

Injected (12mo)

—

Monthly injected volume (bbl, from H-10 filings through 2025-12-01)

Lease Production

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

Gas

production & DCA →

Formation Tops (3) Elevation 71 ft (RT)

CSV

Formation	Top Depth (MD)	Subsea (+above / −below SL)
MIOCENE (Miocene (undifferentiated))	2,500 ft	-2,429 ft
ANAHUAC	5,500 ft	-5,429 ft
FRIO	6,500 ft	-6,429 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 (11)

Interval	Type
2,982–3,028 ft	Perforated
3,035–3,048 ft	Perforated
3,100–3,113 ft	Perforated
3,118–3,138 ft	Perforated
5,318–5,470 ft	Perforated
6,736–6,740 ft	Perforated
6,816–6,820 ft	Perforated
7,071–7,076 ft	Perforated
7,139–? ft	Perforated
7,526–? ft	Perforated
8,360–8,365 ft	Perforated

Casing (9)

Size	Set Depth	Cement
10.75"	1,572 ft	800 sx
10.75"	1,572 ft	800 sx
2"	6,720 ft	—
2"	7,000 ft	—
2"	7,480 ft	—
5.5"	8,794 ft	882 sx
5.5"	8,795 ft	882 sx
5.5"	8,795 ft	882 sx
5.5"	8,795 ft	900 sx

Permit History (3)

#356261 Recompletion Final Completion

OHIO SUN UNIT · 8,821 ft

1989-02-23

#154843 Recompletion Final Completion

OHIO-SUN UNIT · 8,821 ft

1982-03-26

#84281 Other Final Completion

OHIO-SUN UNIT · 8,821 ft

1980-06-18

Applications (3)

#356261 A MARATHON OIL COMPANY

received 1989-02-21

#154843 A MARATHON OIL COMPANY

received 1982-03-26

#84281 A MARATHON OIL COMPANY

received 1980-06-18

Records & Logs

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

W-2/G-1 2003-06-12

W-2/G-1 2001-08-24

W-2/G-1 1989-09-25 log on file

W-2/G-1 1989-11-17

W-2/G-1 1982-06-23

W-2/G-1 1980-08-27

+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: 2E
Max Depth: 8,821 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