TEXAS · WELLS · ECTOR COUNTY · PENWELL UNIT LEASE · API 42-135-36301 · DISTRICT 7B

Penwell Unit #2218

Y

Ector County · Penwell field · Injection  · Vertical

Penwell Unit #2218 (API 42-135-36301) is a well in Ector County operated by Ctoc Energy LLC, completed December 30, 2014 and listed as injection on the RRC schedule.

The RRC has issued one drilling permit, issued September 5, 1990, permitted to 3,906 ft.

It was permitted by Texaco Producing Inc. and has since transferred to Ctoc Energy LLC on the wellbore schedule.

Completion filings report 3 formation tops, including Yates, San Andres, Queen.

Its lease has reported 6.85M barrels of oil and 2.21M mcf of gas since January 1993, last reporting in July 2026. The lease carries 289 wells, so these are lease totals, not this well alone.

It holds an active disposal or injection permit, with 112K barrels injected in the 12 months reported through October 2025.

Operator of record

Ctoc Energy LLC

Permitted by Texaco Producing Inc.; the EWA schedule now lists a different operator.

Based in
Fort Worth, TX
P-5 status
Active (A)
P-5 last filed
Apr 24, 2026
Phone
(817) 334-7804

SOURCE · RRC EWA WELLBORE SCHEDULE

What each RRC source says

Wellbore scheduleCross Timbers Energy LLC
Production reportsCross Timbers Energy, LLCthrough Apr 2026
Latest permitTexaco Producing Inc.Sep 5, 1990

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

3,906
total depth, ft
1
permits on file
Sep 5, 1990
last permit issued
Dec 30, 2014
completed
6.85M
cumulative oil, bbl
2.21M
cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Jul 2026

Regulatory status · RRC wellbore file

Schedule
ON SCHEDULE
Completed
Dec 30, 2014
Shut in
—
Plugged
—

Operator's P-5 on the schedule: Active (A)

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 289 wells in total, so volumes are shared.Why →

LeaseFieldReporting operatorWellsOil, bblGas, mcfReported
Penwell Unit O-10-23007PenwellCross Timbers Energy, LLC2896.85M2.21MJan 1993 – Jul 2026

Oil, barrels lease total

Last 12 months 47,538 · prior 12 44,614(+7%)

05K10K202420252026

Gas, mcf lease total

Last 12 months 7,916 · prior 12 2,830(+180%)

01K2K3K202420252026

Chain of custody

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

  1. 1Texaco E & P Inc.Jan 1993 → May 2002
  2. 2Chevron U. S. A. Inc.Jun 2002 → Jul 2004
  3. 3XTO Energy Inc.Aug 2004 → Apr 2012
  4. 4Merit Energy CompanyMay 2012 → Dec 2013
  5. 5Cross Timbers Energy, LLCJan 2014 → Apr 2026

Permits

PermitTypeOperatorReceivedIssuedSpudDepth
377466-99DrillTexaco Producing Inc.Sep 4, 1990Sep 5, 1990Sep 24, 19903,950

Completions

CompletedLeaseFieldOperatorStatusDepth
Dec 30, 2014Penwell Unit O-10-23007PenwellCtoc Energy LLCInjection3,906
Jul 9, 1993Penwell Unit O-10-23007PenwellCtoc Energy LLCNot on Schedule—

Formation tops

As filed on W-2/G-1. Subsea from 2,899 ft elevation.Download CSV →

FormationMD ftSubsea
Yates2,099800
San Andres3,403-504
San Andres3,695-796
Queen3,886-987

Perforations

Perforated and open-hole intervals.

FromToType
3,5003,856Perforated
3,6953,700Perforated
3,7213,780Perforated
3,7963,821Perforated
3,8283,856Perforated

Casing

Strings as reported, shallowest first.

Casing inSet atHole inCement
8.62593011500 S
5.53,9067.875925 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 5, 2023Feb 7, 2023—
00Feb 10, 1997Sep 13, 1996—
00Jan 29, 1997Jan 20, 1994—
00Mar 14, 1994Jan 20, 1994—
00Nov 27, 1990Oct 24, 1990Yes
00Nov 9, 1990——

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

112K
bbl, last 12 reported months
1.53M
bbl, all reported
Oct 2025
reported through
UICKindStatusPermitted bbl/dMax psiZone ft
000080678H-1 InjectionActive1,5001,6503,398–3,906

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

Last 12 months 111,931 · prior 12 145,768(-23%)

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/13536301, documented in the API reference.