42-489-30779

WILLAMAR WEST UNIT

WILLACY County · District 4 · CITATION OIL & GAS CORP.

Permits

Max Depth

8,200 ft

First Permit

1984-07-10

Latest Activity

1992-07-30

Lifespan

8 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

H-1 Injection Cancelled 1994-03-24 UIC #000056663 permitted 1985-06-05

Permitted Volume

2,000 bbl/d

Max Pressure

1,500 psi

Injection Interval

7,700–8,200 ft

Injected (12mo)

—

W-14 Disposal Plugged 2010-01-13 UIC #000078198 permitted 2003-04-23

Permitted Volume

6,000 bbl/d

Max Pressure

1,200 psi

Injection Interval

2,572–3,710 ft

Injected (12mo)

—

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 (4) Elevation 15 ft (GL)

CSV

Formation	Top Depth (MD)	Subsea (+above / −below SL)
MARG FRIO 1	7,780 ft	-7,765 ft
MARG FRIO 2	7,865 ft	-7,850 ft
MARG FRIO 3	7,920 ft	-7,905 ft
MARG FRIO 4	7,960 ft	-7,945 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 (7)

Interval	Type
2,578–3,710 ft	Perforated
3,289–3,710 ft	Perforated
7,990–8,012 ft	Perforated
8,012–8,032 ft	Perforated
8,046–8,064 ft	Perforated
8,064–8,084 ft	Perforated
8,084–8,104 ft	Perforated

Casing (2)

Size	Set Depth	Cement
9.625"	1,605 ft	645 sx
5.5"	8,200 ft	535 sx

Permit History (2)

#401649 Recompletion

WILLAMAR WEST UNIT · 8,179 ft

1992-07-30

#244433 Drill Final Completion

WILLAMAR WEST FIELD UNIT · 8,200 ft

1984-07-10

Applications (3)

#401649 A CITATION OIL & GAS CORP.

received 1992-07-27

#244433 A AMOCO PRODUCTION COMPANY

received 1985-02-11

#244433 A AMOCO PRODUCTION COMPANY

received 1984-07-06

Records & Logs

5 completion filings on record.

W-2/G-1 2004-07-30

W-2/G-1 2003-01-21

W-2/G-1 1992-12-17

W-2/G-1 1986-08-22

W-2/G-1 1986-09-03

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 WILLACY County.

Well Details

Well Number: 211
Max Depth: 8,200 ft
Drill Type: Vertical
County: WILLACY
District: 4
Operator: CITATION OIL & GAS CORP.

Operator

Name: CITATION OIL & GAS CORP
Location: HOUSTON
P-5 Status: X (filed 2026-05-27)
Cum Oil (all leases): 72,247,033 bbl
Cum Gas (all leases): 24,511,082 mcf
Activities: CSGD/G, CSGD/P, G/PUR, GTHS/G, OPRS/G, OPRS/O
Total Permits: 864