42-409-31462

Final Completion

WELDER E. H. -E-

SAN PATRICIO County · District 4 · MARATHON OIL COMPANY · ROOKE N. (6850)

Permits

Max Depth

8,000 ft

First Permit

1980-10-24

Latest Activity

1989-05-18

Lifespan

9 yrs

Regulatory Status

Schedule

OFF SCHEDULE

Completion

1981-01-22

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 (2) Elevation 22 ft (GR)

CSV

Formation	Top Depth (MD)	Subsea (+above / −below SL)
FRIO	4,800 ft	-4,778 ft
FRIO	5,100 ft	-5,078 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 (3)

Interval	Type
6,509–6,522 ft	Perforated
6,758–6,767 ft	Perforated
6,848–6,853 ft	Perforated

Casing (5)

Size	Set Depth	Cement
16"	88 ft	233 sx
9.625"	1,141 ft	305 sx
9.625"	1,142 ft	470 sx
2.375"	6,727 ft	—
5.5"	7,210 ft	230 sx

Permit History (3)

#359248 Recompletion Final Completion

WELDER, E. H. "E" · 7,210 ft

1989-05-18

#343044 Recompletion Final Completion

WELDER, E. H. E · 7,210 ft

1988-02-24

#96726 Drill Long String Casing

WELDER, E.H. "E" · 8,000 ft

1980-10-24

Applications (3)

#359248 A MARATHON OIL COMPANY

received 1989-05-12

#343044 A MARATHON OIL COMPANY

received 1988-02-23

#96726 A MARATHON OIL COMPANY

received 1980-10-24

Records & Logs

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

W-2/G-1 1989-08-21

W-2/G-1 1989-10-18

W-2/G-1 1989-05-30 log on file

W-2/G-1 1989-06-03

W-2/G-1 1988-03-16 log on file

W-2/G-1 1988-04-29

+1 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 SAN PATRICIO County.

Well Details

Well Number: 27
Max Depth: 8,000 ft
Drill Type: Vertical
County: SAN PATRICIO
District: 4
Operator: MARATHON OIL COMPANY
Completed: 1981-01-22

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