WELL · 42-383-31529 · DISTRICT 7

Roach 166 #1

Plugged

Reagan County · Calvin (Dean) field  · Vertical

Roach 166 #1 (API 42-383-31529) is a plugged well in Reagan County, plugged July 17, 1987, last operated by Cola Petroleum Inc..

The RRC has issued 2 drilling permits between 1979 and 2012, permitted to 8,300 ft.

It was permitted by Williams Oil Company and has since transferred to Cola Petroleum Inc. on the wellbore schedule.

Completion filings report 2 formation tops, including Spraberry, Dean.

It holds an active disposal or injection permit, with 61.6K barrels injected in the 12 months reported through November 2025.

Operator of record

Cola Petroleum Inc.

Permitted by Williams Oil Company; the EWA schedule now lists a different operator.

Midland, TX · P-5 Y, filed Dec 3, 1991 · 174 permits on file

SOURCE · RRC EWA WELLBORE SCHEDULE

What each RRC source says

Wellbore scheduleCola Petroleum Inc.
Production reportsnone
Latest permitWilliams Oil CompanyJun 1, 2012

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

8,300
total depth, ft
2
permits on file
Jun 1, 2012
last permit issued
Apr 21, 1980
completed
0
cumulative oil, bbl
0
cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · Jun 2012 THROUGH Jul 2026

Regulatory status · RRC wellbore file

Schedule
OFF SCHEDULE
Completed
Apr 21, 1980
Shut in
—
Plugged
Jul 17, 1987

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; this well is the only one on it.Why →

LeaseFieldReporting operatorWellsOil, bblGas, mcfReported
Roach '166' O-9-17670Spraberry (Trend Area)McPhaul, Inc.100Jun 2012 – Jul 2026

No volumes reported on these leases in the last three years.

Permits

PermitTypeOperatorReceivedIssuedSpudDepth
741651-99ReenterWilliams Oil CompanyMay 29, 2012Jun 1, 2012Jun 4, 20123,640
67654-99DrillCola Petroleum, Inc.Dec 27, 1979Dec 27, 1979Apr 1, 19808,300

Completions

CompletedLeaseFieldOperatorStatusDepth
—— O-9-17670————

Formation tops

As filed on W-2/G-1. Subsea from 2,622 ft elevation.Download CSV →

FormationMD ftSubsea
SpraberryTOP SPRABERRY5,690-3,068
DeanTOP DEAN7,145-4,523
DeanBASE DEAN7,269-4,647

Perforations

Perforated and open-hole intervals.

FromToType
2,5003,450Perforated
5,6468,246Perforated

Casing

Strings as reported, shallowest first.

Casing inSet atHole inCement
8.6252,35011200 S
5.52,4057.875325 S
2.3757,250——
4.58,2887.875750 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
00Dec 13, 2012Jul 10, 2012—
00Jan 12, 1984May 19, 1980—

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

61.6K
bbl, last 12 reported months
2.12M
bbl, all reported
Nov 2025
reported through
UICKindStatusPermitted bbl/dMax psiZone ft
000105092W-14 DisposalActive8,0001,2002,400–3,640

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

Last 12 months 61,573 · prior 12 62,277(-1%)

05K10K20242025

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/38331529, documented in the API reference.