WELL · 42-219-35006 · DISTRICT 8

West RKM Unit #261

Y

Hockley County · Slaughter field · Injection  · Vertical

West Rkm Unit #261 (API 42-219-35006) is a well in Hockley County operated by Occidental Permian Eor LLC, completed March 24, 2011 and listed as injection on the RRC schedule.

The RRC has issued one drilling permit, issued September 24, 1986, permitted to 5,050 ft.

It was permitted by Amoco Production Company and has since transferred to Occidental Permian Eor LLC on the wellbore schedule.

Completion filings report 6 formation tops, including Rustler, T/Rustler, San Andres, T/(Sa) Zone V.

Its lease has reported 23M barrels of oil and 10.9M mcf of gas since January 1993, last reporting in July 2026. The lease carries 304 wells, so these are lease totals, not this well alone.

It holds an active disposal or injection permit, with 137K barrels injected in the 12 months reported through December 2025.

Operator of record

Occidental Permian EOR LLC

Permitted by Amoco Production Company; the EWA schedule now lists a different operator.

Houston, TX · P-5 Y, filed Jan 21, 2026 · 2 permits on file · (713) 209-2400

SOURCE · RRC EWA WELLBORE SCHEDULE

What each RRC source says

Wellbore scheduleOccidental Permian EOR LLC
Production reportsOccidental Permian Ltd.through Apr 2026
Latest permitAmoco Production CompanySep 24, 1986

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

5,050
total depth, ft
1
permits on file
Sep 24, 1986
last permit issued
Mar 24, 2011
completed
23M
cumulative oil, bbl
10.9M
cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Jul 2026

Regulatory status · RRC wellbore file

Schedule
ON SCHEDULE
Completed
Mar 24, 2011
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 304 wells in total, so volumes are shared.Why →

LeaseFieldReporting operatorWellsOil, bblGas, mcfReported
West RKM Unit O-11-19691SlaughterOccidental Permian EOR, LLC30423M10.9MJan 1993 – Jul 2026

Oil, barrels lease total

Last 12 months 406,368 · prior 12 455,013(-11%)

020K40K60K202420252026

Gas, mcf lease total

Last 12 months 233,036 · prior 12 279,940(-17%)

010K20K30K202420252026

Chain of custody

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

  1. 1Amoco Production CompanyJan 1993 → Feb 1997
  2. 2Altura Energy Ltd.Mar 1997 → Apr 2000
  3. 3Occidental Permian Ltd.May 2000 → Apr 2026

Permits

PermitTypeOperatorReceivedIssuedSpudDepth
320987-99DrillAmoco Production CompanySep 23, 1986Sep 24, 1986—5,050

Completions

CompletedLeaseFieldOperatorStatusDepth
—— O-11-19691————

Formation tops

As filed on W-2/G-1. Subsea from 3,572 ft elevation.Download CSV →

FormationMD ftSubsea
Rustler2,1081,464
T/Rustler2,1081,464
San Andres4,771-1,199
T/(sa) Zone V4,771-1,199
T/(sa) Zone VI4,831-1,259
T/(sa) Zone VII4,881-1,309

Perforations

Perforated and open-hole intervals.

FromToType
4,7614,936Open hole

Casing

Strings as reported, shallowest first.

Casing inSet atHole inCement
8.62547512.25375 S
5.54,7617.8751,075 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
00May 26, 2023Jan 18, 2023—
00Dec 21, 1998May 12, 1997—
00Dec 8, 1986Nov 20, 1986Yes
00Nov 27, 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). then paste it into their search.

Beyond the permit record

RRC UIC permits · H-10 reported volumes

Injection

137K
bbl, last 12 reported months
2.72M
bbl, all reported
Dec 2025
reported through
UICKindStatusPermitted bbl/dMax psiZone ft
000084767H-1 InjectionActive5,1202,3004,600–5,200

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

Last 12 months 137,013 · prior 12 133,447(+3%)

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/21935006, documented in the API reference.