WELL · 42-115-32254 · DISTRICT 8

South Welch Unit #1107W

Y

Dawson County · Welch field · Injection  · Vertical

South Welch Unit #1107W (API 42-115-32254) is a well in Dawson County operated by Oxy USA Wtp Eor LLC, completed February 28, 2012 and listed as injection on the RRC schedule.

The RRC has issued one drilling permit, issued May 29, 1985, permitted to 5,000 ft.

It was permitted by Cities Service Oil & Gas Corp. and has since transferred to Oxy USA Wtp Eor LLC on the wellbore schedule.

Completion filings report one formation top, including San Andres.

Its lease has reported 12.8M barrels of oil and 43.7M mcf of gas since January 1993, last reporting in July 2026. The lease carries 274 wells, so these are lease totals, not this well alone.

It holds an active disposal or injection permit, with 184K barrels injected in the 12 months reported through August 2025.

Operator of record

OXY USA WTP EOR LLC

Permitted by Cities Service Oil & Gas Corp.; the EWA schedule now lists a different operator.

Houston, TX · P-5 Y, filed Jan 7, 2026 · (713) 209-2400

SOURCE · RRC EWA WELLBORE SCHEDULE

What each RRC source says

Wellbore scheduleOXY USA WTP EOR LLC
Production reportsOXY USA WTP LPthrough Apr 2026
Latest permitCities Service Oil & Gas Corp.May 29, 1985

The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.

5,000
total depth, ft
1
permits on file
May 29, 1985
last permit issued
Feb 28, 2012
completed
12.8M
cumulative oil, bbl
43.7M
cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Jul 2026

Regulatory status · RRC wellbore file

Schedule
ON SCHEDULE
Completed
Feb 28, 2012
Shut in
—
Plugged
—

Operator's P-5 on the schedule: Active

Surface location

No coordinates on the permit record yet. The RRC's GIS record usually lands within days of issuance; historical master-file permits never carry one.

Lease production

PDQ LEASE REPORTS · REPORTED THROUGH APR 2026

Texas reports oil by lease, not by well. These are the lease this well is completed on; they carry 274 wells in total, so volumes are shared.Why →

LeaseFieldReporting operatorWellsOil, bblGas, mcfReported
South Welch Unit O-11-60337WelchOXY USA WTP EOR, LLC27412.8M43.7MJan 1993 – Jul 2026

Oil, barrels lease total

Last 12 months 67,671 · prior 12 81,324(-17%)

05K10K202420252026

Gas, mcf lease total

Last 12 months 70,235 · prior 12 75,216(-7%)

05K10K202420252026

Chain of custody

Every operator that reported production on this well's lease, in order.

  1. 1OXY USA Inc.Jan 1993 → Dec 2000
  2. 2OXY USA WTP LPJan 2001 → Apr 2026

Permits

PermitTypeOperatorReceivedIssuedSpudDepth
276351-99DrillCities Service Oil & Gas Corp.May 28, 1985May 29, 1985—5,000

Completions

CompletedLeaseFieldOperatorStatusDepth
—— O-11-60337————

Formation tops

As filed on W-2/G-1. Subsea from 3,102 ft elevation.Download CSV →

FormationMD ftSubsea
San Andres4,876-1,774

Perforations

Perforated and open-hole intervals.

FromToType
4,8764,976Perforated

Casing

Strings as reported, shallowest first.

Casing inSet atHole inCement
8.6251,99412.251,000 S
5.55,0027.8751,200 S

Completion filings

W-2 and G-1 reports on record in the RRC wellbore file, newest first. The suffix identifies the wellbore or completion event. About these reports →

SuffixFiledW-2 / G-1 dateLogs referenced
00Jun 21, 2022Feb 24, 2022—
00Jul 5, 2006Feb 2, 2006—
00Jun 2, 1986May 23, 1986Yes
00May 30, 1986——

The source documents

Petrora holds the structured record. The scanned filings live at the RRC; these links open its search already filled in for this API.

Log images are in archives with no per-well link: the RRC's Neubus archive (2004 onward) and the University Lands library. then paste it into their search.

Beyond the permit record

RRC UIC permits · H-10 reported volumes

Injection

184K
bbl, last 12 reported months
4.81M
bbl, all reported
Aug 2025
reported through
UICKindStatusPermitted bbl/dMax psiZone ft
000060022H-1 InjectionActive5,0002,2254,450–6,250

MONTHLY INJECTED, BBL · H-10 · LAST 24 REPORTED MONTHS

Last 12 months 184,421 · prior 12 166,491(+11%)

010K20K20242025

About this data

Permits from the RRC OGA049M master and daily daf420 files; wellbore and operator of record from the EWA schedule, weekly; completions, formation tops, casing, and perforations from the dbf900 wellbore file; production from PDQ lease reports, which lag two to three months; injection from UIC permits, H-10 reports, and TexNet daily volumes; earthquakes from the TexNet catalog.

New to these records? How to read a well page · API numbers · completion reports and tops · why production is by lease

Developers: this page as JSON is GET /v1/data/wells/11532254, documented in the API reference.