42-409-00764

Final Completion

WELDER R.H. A A/C-1

SAN PATRICIO County · District 4 · MARATHON OIL COMPANY · SINTON NORTH (5050 STRAY

Permits

Max Depth

5,885 ft

First Permit

1989-04-13

Latest Activity

1998-06-15

Lifespan

9 yrs

Regulatory Status

Schedule

OFF SCHEDULE

Completion

1990-11-13

Shut-In

—

Plugged

2013-05-10

EWA / Production operator mismatch

Scheduling: MARATHON OIL COMPANY ≠ Production: HAZELETT OIL, INC. (reported 2006-02)

Resolved via: scheduling → MARATHON OIL COMPANY

Production Summary

Cum Oil

— bbl

Cum Gas

— mcf

First Production

1993-01

Last Production

2014-06

Operator History

Chain of Custody

MARATHON OIL COMPANY 1993-1999→ CONSOLIDATED PETRO PTNRS I, LLC 2000-2001→ KEBO OIL & GAS, INC. 2001-2002→ HAZELETT OIL COMPANY, INC. 2002-2005→ HAZELETT OIL, INC. 2005-2006

Lease Production

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

Formation Tops (3) Elevation 58 ft (GR)

CSV

Formation	Top Depth (MD)	Subsea (+above / −below SL)
MIOCENE (Miocene (undifferentiated))	1 ft	+57 ft
ANAHUAC	4,450 ft	-4,392 ft
FRIO	5,150 ft	-5,092 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 (4)

Interval	Type
3,456–3,464 ft	Perforated
5,056–5,070 ft	Perforated
5,070–5,077 ft	Perforated
?–5,398 ft	Perforated

Casing (3)

Size	Set Depth	Cement
9.625"	1,085 ft	—
9.625"	1,100 ft	450 sx
5.5"	5,630 ft	200 sx

Permit History (2)

#476967 Recompletion Final Completion

WELDER, R. H. "A" A/C-1 · 5,885 ft

1998-06-15

Spud 1998-05-12

#358041 Recompletion Final Completion

WELDER, R. H. "A" A/C-1 · 5,885 ft

1989-04-13

Applications (2)

#476967 A MARATHON OIL COMPANY

received 1998-06-08

#358041 A MARATHON OIL COMPANY

received 1989-04-12

Records & Logs

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

W-2/G-1 1998-06-05 log on file

W-2/G-1 1998-06-29

W-2/G-1 1990-11-26

W-2/G-1 1989-04-17 log on file

W-2/G-1 1989-05-06

W-2/G-1 1958-12-11

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: 19
Max Depth: 5,885 ft
Drill Type: Vertical
County: SAN PATRICIO
District: 4
Operator: MARATHON OIL COMPANY
Completed: 1990-11-13

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