42-501-31759

PRODUCING

WILLARD UNIT

YOAKUM County · District 8 · OXY USA WTP LP · WASSON

Permits

Max Depth

5,900 ft

First Permit

1979-08-21

Latest Activity

2007-04-09

Lifespan

28 yrs

Regulatory Status

Schedule

ON SCHEDULE

Completion

2017-03-14

Shut-In

—

Plugged

—

P-5 Org Status: Active

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→ ARCO PERMIAN 1994-2001→ BP AMERICA PRODUCTION COMPANY 2002-2003→ OXY USA WTP LP 2003-2026

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 3,592 ft (GR)

CSV

Formation	Top Depth (MD)	Subsea (+above / −below SL)
RED BED / SANTA ROSA (Santa Rosa)	1,100 ft	+2,492 ft
YATES	2,800 ft	+792 ft
SAN ANDRES	4,500 ft	-908 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
5,021–5,230 ft	Perforated
5,026–5,080 ft	Perforated
5,026–5,179 ft	Perforated
5,230–5,400 ft	Open hole

Casing (3)

Size	Set Depth	Cement
9.625"	485 ft	350 sx
3.5"	5,108 ft	—
7"	5,230 ft	2,050 sx

Permit History (2)

#636308 Recompletion Final Completion

WILLARD UNIT · 5,900 ft

2007-04-09

Spud 2007-03-19

#56474 Drill Final Completion

WILLARD UNIT · 5,400 ft

1979-08-21

Spud 1979-10-23

Applications (2)

#636308 A OXY USA WTP LP

received 2007-04-02

#56474 A ARCO OIL & GAS CO.

received 1979-08-21

Records & Logs

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

W-2/G-1 2017-05-22

W-2/G-1 2007-10-01 log on file

W-2/G-1 1979-12-04

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 YOAKUM County.

Well Details

Well Number: 31C
Max Depth: 5,900 ft
Drill Type: Vertical
County: YOAKUM
District: 8
Operator: OXY USA WTP LP
Completed: 2017-03-14

Operator

Name: OXY USA WTP LP
Location: HOUSTON
P-5 Status: Active (filed 2025-10-16)
Cum Oil (all leases): 329,551,533 bbl
Cum Gas (all leases): 84,981,131 mcf
Activities: CSGD/G, CSGD/P, G/PUR, OPRS/G, OPRS/O
Total Permits: 2,273