WELL · 42-163-32934 · DISTRICT 1
Cook-Mann Unit #1
Frio County · Pearsall (Austin Chalk) field · Horizontal
Cook-Mann Unit #1 (API 42-163-32934) is a plugged horizontal well in Frio County, plugged April 1, 1993, last operated by Gulfstar Properties Inc..
The RRC has issued one drilling permit, issued December 13, 1990, permitted to 6,200 ft.
It was permitted by Amberton Exploration Company and has since transferred to Gulfstar Properties Inc. on the wellbore schedule.
Completion filings report 4 formation tops, including Anacacho, Top Of Chalk, Eagle Ford, Buda.
Operator of record
Permitted by Amberton Exploration Company; the EWA schedule now lists a different operator.
San Antonio, TX · P-5 Y, filed Mar 4, 2026 · 62 permits on file · (210) 722-6941
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Gulfstar Properties Inc. |
| Production reports | none |
| Latest permit | Amberton Exploration CompanyDec 13, 1990 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 6,200
- total depth, ft
- 1
- permits on file
- Dec 13, 1990
- last permit issued
- Mar 28, 1991
- completed
- 0
- cumulative oil, bbl
- 0
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH May 1995
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- Mar 28, 1991
- Shut in
- —
- Plugged
- Apr 1, 1993
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 |
|---|---|---|---|---|---|---|
| Cook-Mann Unit O-1-13144 | Pearsall (Austin Chalk) | Gulfstar Properties, Inc. | 1 | 0 | 0 | Jan 1993 – May 1995 |
No volumes reported on these leases in the last three years.
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 381793-99 | Drill | Amberton Exploration Company | Dec 3, 1990 | Dec 13, 1990 | Dec 28, 1990 | 6,200 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — O-1-13144 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 545 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| AnacachoTOP OF ANACACHO | 5,120 | -4,575 |
| Top of Chalk | 5,220 | -4,675 |
| Eagle FordTOP OF EAGLE FORD | 5,710 | -5,165 |
| BudaTOP OF BUDA | 5,800 | -5,255 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 5,220 | 7,717 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 10.75 | 661 | 14.75 | 160 S |
| 7 | 5,130 | 9.875 | 377 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 | Aug 2, 1991 | Jun 4, 1991 | Yes |
| 00 | Aug 1, 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 42-163-32934 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-163-32934 → 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/16332934, documented in the API reference.