WELL · 42-103-33840 · DISTRICT 8

Block 31 Unit #T 8N

Y

Crane County · Block 31 (Devonian) field · Shut IN  · Vertical

Block 31 Unit #T 8N (API 42-103-33840) is a well in Crane County operated by Oxy USA Eor LLC, completed January 3, 2024 and listed as shut in on the RRC schedule.

The RRC has issued one drilling permit, issued March 16, 1988, permitted to 9,500 ft.

It was permitted by Arco Oil & Gas CO. and has since transferred to Oxy USA Eor LLC on the wellbore schedule.

Completion filings report 4 formation tops, including Barnett, Mississippian, Woodford, Devonian.

Its lease has reported 15.2M barrels of oil and 971M mcf of gas since January 1993, last reporting in July 2026. The lease carries 330 wells, so these are lease totals, not this well alone.

It holds an active disposal or injection permit.

Operator of record

OXY USA EOR LLC

Permitted by Arco Oil & Gas Co.; the EWA schedule now lists a different operator.

Houston, TX · P-5 Y, filed Dec 22, 2025 · 1 permits on file · (713) 209-2400

SOURCE · RRC EWA WELLBORE SCHEDULE

What each RRC source says

Wellbore scheduleOXY USA EOR LLC
Production reportsOXY USA Inc.through Apr 2026
Latest permitArco Oil & Gas Co.Mar 16, 1988

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

9,500
total depth, ft
1
permits on file
Mar 16, 1988
last permit issued
Jan 3, 2024
completed
15.2M
cumulative oil, bbl
971M
cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Jul 2026

Regulatory status · RRC wellbore file

Schedule
ON SCHEDULE
Completed
Jan 3, 2024
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 330 wells in total, so volumes are shared.Why →

LeaseFieldReporting operatorWellsOil, bblGas, mcfReported
Block 31 Unit O-10-442Block 31 (Devonian)OXY USA EOR, LLC33015.2M971MJan 1993 – Jul 2026

Gas, mcf lease total

Last 12 months 4,268,890 · prior 12 5,311,503(-20%)

0500K1M202420252026

Oil, barrels lease total

Last 12 months 42,201 · prior 12 62,459(-32%)

05K10K202420252026

Chain of custody

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

  1. 1Arco Oil & Gas Co.Jan 1993 → May 1994
  2. 2Arco PermianJun 1994 → Dec 2001
  3. 3BP America Production CompanyJan 2002 → Oct 2010
  4. 4OXY USA Inc.Nov 2010 → Apr 2026

Permits

PermitTypeOperatorReceivedIssuedSpudDepth
343823-99DrillArco Oil & Gas Co.Mar 14, 1988Mar 16, 1988May 11, 19889,500

Completions

CompletedLeaseFieldOperatorStatusDepth
—— O-10-442————

Formation tops

As filed on W-2/G-1. Subsea from 2,577 ft elevation.Download CSV →

FormationMD ftSubsea
Barnett7,845-5,268
BarnettBARNETT SHALE7,845-5,268
MississippianMISSISSIPPI LIME8,145-5,568
Woodford8,160-5,583
WoodfordWOODFORD SHALE8,160-5,583
Devonian8,320-5,743

Perforations

Perforated and open-hole intervals.

FromToType
8,3538,408Perforated
8,3539,164Perforated
8,8028,952Perforated
8,9659,164Perforated

Casing

Strings as reported, shallowest first.

Casing inSet atHole inCement
13.37571717.5600 S
8.6253,600111,550 S
5.59,3407.8751,200 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
00Nov 13, 2024Oct 18, 2024—
00Oct 7, 1988Sep 20, 1988—
00Sep 30, 1988——

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

0
bbl, last 12 reported months
0
bbl, all reported
Jun 2025
reported through
UICKindStatusPermitted bbl/dMax psiZone ft
000065988H-1 InjectionActive008,330–9,320

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

Last 12 months 0 · prior 12 0

0120242025

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/10333840, documented in the API reference.