42-501-33047

INJECTION

WILLARD UNIT

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

Permits

3

Max Depth

5,800 ft

First Permit

1986-02-24

Latest Activity

2016-11-02

Lifespan

31 yrs

Regulatory Status

Schedule

ON SCHEDULE

Completion

2023-02-15

Shut-In

Plugged

P-5 Org Status: Active

Production Summary

Cum Oil

bbl

Cum Gas

mcf

First Production

1993-01

Last Production

2026-07

Injection / Disposal

H-1 Injection Active UIC #000057743 permitted 1999-03-01

Permitted Volume

1,500 bbl/d

Max Pressure

2,450 psi

Injection Interval

4,900–5,600 ft

Injected (12mo)

25,537 bbl

Monthly injected volume (bbl, from H-10 filings through 2025-09-01)

Lease Production

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

Formation Tops (4) Elevation 3,616 ft (GR)

CSV
FormationTop Depth (MD)Subsea (+above / −below SL)
RUSTLER 2,090 ft+1,526 ft
QUEEN 3,858 ft-242 ft
SAN ANDRES 4,462 ft-846 ft
SAN ANDRES 4,500 ft-884 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)

IntervalType
5,069–5,237 ftPerforated
5,069–5,299 ftPerforated
5,143–5,298 ftPerforated
5,300–5,394 ftOpen hole

Casing (2)

SizeSet DepthCement
8.625"1,024 ft650 sx
5.5"5,300 ft1,900 sx

Permit History (3)

Applications (3)

#819616 A OXY USA WTP LP
received 2016-10-20
#298406 A ARCO OIL & GAS CO.
received 1986-11-07
#298406 A ARCO OIL & GAS CO.
received 1986-02-18

Records & Logs

4 completion filings on record.

W-2/G-1 2022-09-19
W-2/G-1 2017-08-24
W-2/G-1 1987-04-01
W-2/G-1 1987-04-07

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
100C
Max Depth
5,800 ft
Drill Type
Vertical
County
YOAKUM
District
8
Completed
2023-02-15

Operator

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
2,277