TEXAS · WELLS · ECTOR COUNTY · PENWELL UNIT LEASE · API 42-135-36750 · DISTRICT 7B
Penwell Unit #1355
Ector County · Penwell field · Injection · Vertical
Penwell Unit #1355 (API 42-135-36750) is a well in Ector County operated by Ctoc Energy LLC, completed June 29, 2007 and listed as injection on the RRC schedule.
The RRC has issued one drilling permit (amended once), issued July 15, 1993, permitted to 3,960 ft.
It was permitted by Texaco E & P Inc. and has since transferred to Ctoc Energy LLC on the wellbore schedule.
Completion filings report one formation top, including San Andres.
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 104K barrels injected in the 12 months reported through October 2025.
Operator of record
Permitted by Texaco E & P 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 schedule | Cross Timbers Energy LLC |
| Production reports | Cross Timbers Energy, LLCthrough Apr 2026 |
| Latest permit | Texaco E & P Inc.Jul 15, 1993 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 3,960
- total depth, ft
- 2
- permits on file
- Jul 15, 1993
- last permit issued
- Jun 29, 2007
- 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
- Jun 29, 2007
- 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 →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Penwell Unit O-10-23007 | Penwell | Cross Timbers Energy, LLC | 289 | 6.85M | 2.21M | Jan 1993 – Jul 2026 |
Oil, barrels lease total
Last 12 months 47,538 · prior 12 44,614(+7%)
Gas, mcf lease total
Last 12 months 7,916 · prior 12 2,830(+180%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Texaco E & P Inc.Jan 1993 → May 2002
- 2Chevron U. S. A. Inc.Jun 2002 → Jul 2004
- 3XTO Energy Inc.Aug 2004 → Apr 2012
- 4Merit Energy CompanyMay 2012 → Dec 2013
- 5Cross Timbers Energy, LLCJan 2014 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 413776-98 | Drill | Texaco E & P Inc. | Sep 29, 1993 | Jul 15, 1993 | Nov 3, 1993 | 3,960 |
| 413776-99 | Drill | Texaco E & P Inc. | Jul 12, 1993 | Jul 15, 1993 | — | 3,960 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| Jun 29, 2007 | Penwell Unit O-10-23007 | Penwell | Ctoc Energy LLC | Injection | 3,960 |
| Dec 21, 1993 | Penwell Unit O-10-23007 | Penwell | Ctoc Energy LLC | Not on Schedule | — |
Formation tops
As filed on W-2/G-1. Subsea from 2,925 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| San Andres | 3,504 | -579 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 3,504 | 3,630 | Perforated |
| 3,793 | 3,887 | Perforated |
| 3,800 | 3,820 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 8.625 | 945 | 11 | 400 S |
| 5.5 | 3,960 | 7.875 | 825 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 →
| Suffix | Filed | W-2 / G-1 date | Logs referenced |
|---|---|---|---|
| 00 | May 12, 2010 | Oct 1, 2009 | — |
| 00 | Jan 19, 2010 | Jan 6, 1994 | Yes |
| 00 | Feb 14, 1994 | Jan 6, 1994 | Yes |
| 00 | Jan 20, 1994 | — | — |
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.
- Wellbore filings for 42-135-36750 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-135-36750 → scanned completion filings
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
- 104K
- bbl, last 12 reported months
- 4.46M
- bbl, all reported
- Oct 2025
- reported through
| UIC | Kind | Status | Permitted bbl/d | Max psi | Zone ft |
|---|---|---|---|---|---|
| 000098345 | H-1 Injection | Active | 1,600 | 1,700 | 3,400–3,960 |
MONTHLY INJECTED, BBL · H-10 · LAST 24 REPORTED MONTHS
Last 12 months 103,551 · prior 12 101,039(+2%)
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/13536750, documented in the API reference.