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42-321-00379

Final Completion

OHIO-SUN UNIT

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

Permits

1

Max Depth

11,680 ft

First Permit

1987-05-21

Latest Activity

1987-05-21

Lifespan

< 1 yr

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

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) Elevation 58 ft (GR)

CSV
FormationTop Depth (MD)Subsea (+above / −below SL)
MIOCENE (Miocene (undifferentiated))2,500 ft-2,442 ft
ANAHUAC 5,500 ft-5,442 ft
FRIO 6,900 ft-6,842 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
8,473–8,477 ftPerforated
?–8,852 ftPerforated

Casing (4)

SizeSet DepthCement
13.625"2,075 ft1,680 sx
13.375"2,075 ft1,680 sx
2.375"8,560 ft—
8.625"8,904 ft758 sx

Permit History (1)

#330530 Recompletion Final Completion

OHIO-SUN UNIT · 11,680 ft

1987-05-21

Applications (1)

#330530 A MARATHON OIL COMPANY
received 1987-05-20

Records & Logs

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

W-2/G-1 1987-07-20 log on file
W-2/G-1 1987-07-28
W-2/G-1 1975-10-29
W-2/G-1 1984-01-12
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
16F
Max Depth
11,680 ft
Drill Type
Vertical
County
MATAGORDA
District
3
Operator
MARATHON OIL COMPANY

Operator

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