42-115-32244

INJECTION

SOUTH WELCH UNIT

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

Permits

1

Max Depth

5,000 ft

First Permit

1985-05-29

Latest Activity

1985-05-29

Lifespan

< 1 yr

Regulatory Status

Schedule

ON SCHEDULE

Completion

1985-09-17

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: CITIES SERVICE OIL & GAS CORP.

Resolved via: productionOXY USA WTP LP

Production Summary

Cum Oil

bbl

Cum Gas

mcf

First Production

1993-01

Last Production

2026-07

H-1 Injection Active UIC #000060016 permitted 1995-10-25

Permitted Volume

1,000 bbl/d

Max Pressure

2,400 psi

Injection Interval

4,872–5,165 ft

Injected (12mo)

34,110 bbl

Monthly injected volume (bbl, from H-10 filings through 2025-08-01)

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 (1) Elevation 3,065 ft (GR)

CSV
FormationTop Depth (MD)Subsea (+above / −below SL)
SAN ANDRES 4,872 ft-1,807 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
4,872–4,962 ftPerforated

Casing (2)

SizeSet DepthCement
8.625"2,018 ft1,000 sx
5.5"4,970 ft1,200 sx

Permit History (1)

Applications (1)

#276337 A CITIES SERVICE OIL & GAS CORP.
received 1985-05-28

Records & Logs

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

W-2/G-1 2008-08-25
W-2/G-1 1986-05-23 log on file
W-2/G-1 1986-05-30
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
1813W
Max Depth
5,000 ft
Drill Type
Vertical
County
DAWSON
District
8
Completed
1985-09-17

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