WELL · 42-041-31249 · DISTRICT 3
Cotrone #1L
Brazos County · Stone City (Austin Chalk) field · Vertical
Cotrone #1L (API 42-041-31249) is a plugged well in Brazos County, plugged October 19, 2016, last operated by Gsi Oil & Gas Inc..
The RRC has issued 2 drilling permits between 1984 and 1993, permitted to 8,200 ft.
Completion filings report 3 formation tops, including Austin Chalk, Buda, Georgetown.
Its 2 leases have reported 4.91K barrels of oil and 2.17K mcf of gas since January 1993, last reporting in February 2017. The leases carry 2 wells, so these are lease totals, not this well alone.
Operator of record
Bryan, TX · P-5 Y, filed Sep 4, 2025 · 18 permits on file · (979) 229-5151
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Gsi Oil & Gas Inc. |
| Production reports | Gsi Oil & Gas, Inc.through Sep 2016 |
| Latest permit | Gsi Oil & Gas, Inc.Dec 1, 1993 |
- 8,200
- total depth, ft
- 2
- permits on file
- Dec 1, 1993
- last permit issued
- Jan 14, 1985
- completed
- 4.91K
- cumulative oil, bbl
- 2.17K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Feb 2017
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- Jan 14, 1985
- Shut in
- —
- Plugged
- Oct 19, 2016
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 2 leases this well is completed on; they carry 2 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Cotrone O-3-22257 | Kurten (Buda) | Gsi Oil & Gas, Inc. | 1 | 2.85K | 2.17K | Dec 1993 – Feb 2017 |
| Cotrone O-3-18256 | Stone City (Austin Chalk) | Gsi Oil & Gas, Inc. | 1 | 2.06K | 6 | Jan 1993 – Oct 1995 |
No volumes reported on these leases in the last three years.
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Gsi Oil & Gas, Inc.Jan 1993 → Sep 2016
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 418853-99 | Recompletion | Gsi Oil & Gas, Inc. | Dec 1, 1993 | Dec 1, 1993 | Dec 1, 1993 | 7,900 |
| 257815-99 | Drill | G S I, Inc. | Nov 5, 1984 | Nov 15, 1984 | Dec 19, 1984 | 8,200 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — O-3-18256 | — | — | — | — |
| — | — O-3-22257 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 245 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Austin Chalk | 7,105 | -6,860 |
| Buda | 7,641 | -7,396 |
| Georgetown | 7,713 | -7,468 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 7,146 | 7,244 | Perforated |
| 7,658 | 7,771 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 8.625 | 3,206 | 11 | 520 S |
| 5.5 | 7,900 | 7.875 | 430 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 | Feb 15, 1994 | Jan 12, 1994 | Yes |
| 00 | Feb 4, 1994 | — | — |
| 00 | Feb 25, 1985 | Jan 30, 1985 | — |
| 00 | Feb 6, 1985 | — | — |
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 42-041-31249 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-041-31249 → 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/04131249, documented in the API reference.