WELL · 42-123-31653 · DISTRICT 2
Zengerle #1
DE Witt County · Thomaston (Yegua 4900) field · Shut IN · Vertical
Zengerle #1 (API 42-123-31653) is a well in De Witt County operated by Island Exploration, completed November 13, 1990 and listed as shut in on the RRC schedule.
The RRC has issued one drilling permit (amended once), issued September 12, 1990, permitted to 5,500 ft.
It was permitted by Westhall Associates, Inc. and has since transferred to Island Exploration on the wellbore schedule.
Completion filings report one formation top, including Yegua.
No lease production has been reported under this well’s leases.
Operator of record
Permitted by Westhall Associates, Inc.; the EWA schedule now lists a different operator.
Houston, TX · P-5 Y, filed Nov 4, 2025 · (281) 333-1080
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Island Exploration |
| Production reports | none |
| Latest permit | Westhall Associates, Inc.Sep 12, 1990 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 5,500
- total depth, ft
- 2
- permits on file
- Sep 12, 1990
- last permit issued
- Nov 13, 1990
- completed
- 0
- cumulative oil, bbl
- 0
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Nov 13, 1990
- Shut in
- —
- Plugged
- —
Operator's P-5 on the schedule: Delinquent
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 →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Zengerle O-2-7666 | Thomaston (Yegua 4900) | Island Exploration | 1 | 0 | 0 | Jan 1993 – Jul 2026 |
No volumes reported on these leases in the last three years.
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 377536-98 | Drill | Westhall Associates, Inc. | Jan 23, 1991 | Sep 12, 1990 | Oct 28, 1990 | 5,500 |
| 377536-99 | Drill | Westhall Associates, Inc. | Sep 5, 1990 | Sep 12, 1990 | — | 5,500 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — O-2-7666 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 180 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Yegua | 4,900 | -4,720 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 4,972 | 4,979 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 8.625 | 552 | 12.25 | 205 S |
| 4.5 | 5,403 | 7.875 | 815 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 | Mar 22, 1991 | Jan 22, 1991 | Yes |
| 00 | Feb 12, 1991 | — | — |
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 42-123-31653 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-123-31653 → scanned completion filings
Log images are in archives with no per-well link: the RRC's Neubus archive (2004 onward). 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/12331653, documented in the API reference.