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WEST WELCH UNIT

DAWSON County · District 8 · OXY USA WTP EOR LLC · WELCH

Permits

1

Max Depth

5,025 ft

First Permit

1989-03-15

Latest Activity

1989-03-15

Lifespan

< 1 yr

Regulatory Status

Schedule

ON SCHEDULE

Completion

2023-03-23

Shut-In

Plugged

P-5 Org Status: Active

!

EWA / Production operator mismatch

Scheduling: OXY USA WTP EOR LLC ≠ Production: OXY USA WTP LP (reported 2026-04)

!

EWA / Permit operator mismatch

Scheduling: OXY USA WTP EOR LLC ≠ Permit: OXY USA INC.

Resolved via: productionOXY USA WTP LP

Production Summary

Cum Oil

bbl

Cum Gas

mcf

First Production

1993-01

Last Production

2026-07

Operator History

Chain of Custody

Lease Production

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

Formation Tops (3) Elevation 3,113 ft (GR)

CSV
FormationTop Depth (MD)Subsea (+above / −below SL)
TANSILL 2,763 ft+350 ft
YATES 2,911 ft+202 ft
SAN ANDRES 4,852 ft-1,739 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 (1)

IntervalType
4,852–4,917 ftPerforated

Casing (2)

SizeSet DepthCement
8.625"1,980 ft1,000 sx
5.5"5,000 ft1,000 sx

Permit History (1)

Applications (1)

#356998 A OXY USA INC.
received 1989-03-14

Records & Logs

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

W-2/G-1 2024-01-18
W-2/G-1 1989-05-15 log on file
W-2/G-1 1989-05-24
Completion packets + logs ↗ Wellbore filings ↗

Completion packets open directly (post-2011 filings include attached logs). Log images and the UL library 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 DAWSON County.

Well Details

Well Number
3109
Max Depth
5,025 ft
Drill Type
Vertical
County
DAWSON
District
8
Completed
2023-03-23

Operator

Location
HOUSTON
P-5 Status
Active (filed 2026-01-07)
Cum Oil (all leases)
— bbl
Cum Gas (all leases)
— mcf
Activities
OPRS/G, OPRS/O