WELL · 42-165-34951 · DISTRICT 8

Flanagan Unit #661

Y

Gaines County · Flanagan (Clearfork Cons.) field · Shut IN  · Vertical

Flanagan Unit #661 (API 42-165-34951) is a well in Gaines County operated by Occidental Permian Eor LLC, completed March 9, 2020 and listed as shut in on the RRC schedule.

The RRC has issued one drilling permit, issued February 26, 1996, permitted to 7,450 ft.

It was permitted by Shell Western E&P Inc. and has since transferred to Occidental Permian Eor LLC on the wellbore schedule.

Completion filings report 6 formation tops, including Rustler, Yates, San Andres, Glorieta.

Its lease has reported 15.9M barrels of oil and 5.02M mcf of gas since January 1993, last reporting in July 2026. The lease carries 220 wells, so these are lease totals, not this well alone.

Operator of record

Occidental Permian EOR LLC

Permitted by Shell Western E&P Inc.; 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 permitShell Western E&P Inc.Feb 26, 1996

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

7,450
total depth, ft
1
permits on file
Feb 26, 1996
last permit issued
Mar 9, 2020
completed
15.9M
cumulative oil, bbl
5.02M
cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Jul 2026

Regulatory status · RRC wellbore file

Schedule
ON SCHEDULE
Completed
Mar 9, 2020
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 220 wells in total, so volumes are shared.Why →

LeaseFieldReporting operatorWellsOil, bblGas, mcfReported
Flanagan Unit O-11-66166Flanagan (Clearfork, Cons.)Occidental Permian EOR, LLC22015.9M5.02MJan 1993 – Jul 2026

Oil, barrels lease total

Last 12 months 67,449 · prior 12 59,714(+13%)

05K10K15K202420252026

Gas, mcf lease total

Last 12 months 21,262 · prior 12 30,828(-31%)

02K4K6K202420252026

Chain of custody

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

  1. 1Shell Western E&P Inc.Jan 1993 → Feb 1997
  2. 2Altura Energy Ltd.Mar 1997 → Apr 2000
  3. 3Occidental Permian Ltd.May 2000 → Apr 2026

Permits

PermitTypeOperatorReceivedIssuedSpudDepth
444846-99DrillShell Western E&P Inc.Feb 14, 1996Feb 26, 1996Feb 27, 19967,450

Completions

CompletedLeaseFieldOperatorStatusDepth
—— O-11-66166————

Formation tops

As filed on W-2/G-1. Subsea from 3,300 ft elevation.Download CSV →

FormationMD ftSubsea
Rustler1,7771,523
Yates2,904396
San Andres4,524-1,224
Glorieta5,816-2,516
Clear ForkUPPER CLEARFORK6,324-3,024
Tubb6,951-3,651

Perforations

Perforated and open-hole intervals.

FromToType
5,8985,992Perforated
6,3596,392Perforated
6,6946,820Perforated
7,0967,232Perforated

Casing

Strings as reported, shallowest first.

Casing inSet atHole inCement
13.37531417.5350 S
8.6253,350111,585 S
5.57,4507.8751,260 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
00Sep 28, 2020Aug 6, 2020—
00Aug 27, 1996Jul 8, 1996Yes
00Aug 7, 1996——

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.

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/16534951, documented in the API reference.