42-215-31194

Final Completion

SWALLOW GAS UNIT

HIDALGO County · District 4 · ARCO OIL & GAS CO. · DONNA (6850)

Permits

Max Depth

8,500 ft

First Permit

1981-11-06

Latest Activity

1995-02-27

Lifespan

13 yrs

Regulatory Status

Schedule

OFF SCHEDULE

Completion

1982-03-01

Shut-In

—

Plugged

—

EWA / Production operator mismatch

Scheduling: ARCO OIL & GAS CO. ≠ Production: WAGNER OIL COMPANY (reported 2026-04)

EWA / Permit operator mismatch

Scheduling: ARCO OIL & GAS CO. ≠ Permit: VASTAR RESOURCES, INC.

Resolved via: production → WAGNER OIL COMPANY

Production Summary

Cum Oil

— bbl

Cum Gas

— mcf

First Production

1993-01

Last Production

2026-07

Operator History

Chain of Custody

ARCO OIL & GAS CO. 1993-1994→ VASTAR RESOURCES, INC. 1994-2001→ BP AMERICA PRODUCTION COMPANY 2002-2009→ WAGNER OIL COMPANY 2010-2026

Lease Production

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

Formation Tops (3) Elevation 100 ft (KB)

CSV

Formation	Top Depth (MD)	Subsea (+above / −below SL)
ARMSTRONG	5,321 ft	-5,221 ft
RICE 4	6,883 ft	-6,783 ft
JANCIK	7,230 ft	-7,130 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
5,321–5,326 ft	Perforated
5,494–5,510 ft	Perforated
6,883–6,893 ft	Perforated

Casing (3)

Size	Set Depth	Cement
10.75"	2,018 ft	1,075 sx
2.375"	6,800 ft	—
7"	7,930 ft	1,797 sx

Permit History (3)

#433219 Recompletion Final Completion

SWALLOW GAS UNIT · 7,930 ft

1995-02-27

Spud 1995-03-17

#328768 Recompletion Final Completion

SWALLOW GAS UNIT · 8,500 ft

1987-04-14

#139873 Drill Final Completion

SWALLOW GAS UNIT · 8,500 ft

1981-11-06

Applications (3)

#433219 A VASTAR RESOURCES, INC.

received 1995-02-23

#328768 A ARCO OIL & GAS CO.

received 1987-04-08

#139873 A ARCO OIL & GAS CO.

received 1981-11-06

Records & Logs

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

W-2/G-1 1995-06-14 log on file

W-2/G-1 1995-07-12

W-2/G-1 1987-06-24 log on file

W-2/G-1 1987-07-07

W-2/G-1 1982-04-15

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 HIDALGO County.

Well Details

Well Number: 10
Max Depth: 8,500 ft
Drill Type: Vertical
County: HIDALGO
District: 4
Operator: ARCO OIL & GAS CO.
Completed: 1982-03-01

Operator

Name: ARCO OIL & GAS CO.-SILSBEE
Location: PLANO
P-5 Status: Inactive (filed 2004-11-23)
Cum Oil (all leases): 16,679,531 bbl
Cum Gas (all leases): 57,198,899 mcf
Total Permits: 3,065