WELL · 42-321-31861 · DISTRICT 3
Cornelius #1
Matagorda County · Elliott Slough (Frio Lower) field · Vertical
Cornelius #1 (API 42-321-31861) is a plugged well in Matagorda County, plugged June 10, 2011, last operated by San Isidro Development CO L. C..
The RRC has issued 2 drilling permits (amended once) between 2000 and 2009, permitted to 14,000 ft.
Completion filings report 3 formation tops, including Frio, Sartweller, Blanche.
Operator of record
San Isidro Development Co L. C.
Sandia, TX · P-5 Y, filed May 4, 2026 · 46 permits on file · (361) 765-2450
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | San Isidro Development Co L. C. |
| Production reports | San Isidro Development Co, L. C.through Nov 2008 |
| Latest permit | San Isidro Development Co, L. C.Mar 23, 2009 |
- 14,000
- total depth, ft
- 3
- permits on file
- Mar 23, 2009
- last permit issued
- Oct 28, 2008
- completed
- 0
- cumulative oil, bbl
- 79.7K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jun 2001 THROUGH Jun 2011
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- Oct 28, 2008
- Shut in
- —
- Plugged
- Jun 10, 2011
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 |
|---|---|---|---|---|---|---|
| Cornelius G-3-186895 | Elliott Slough (Frio, Lower) | San Isidro Development Co, L. C. | 1 | 0 | 79.7K | Jun 2001 – Jun 2011 |
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.
- 1Saxet Energy, Ltd.Jun 2001 → Nov 2003
- 2Rincon Petroleum CorporationJan 2005 → Jun 2006
- 3San Isidro Development Co, L. C.Nov 2008 → Nov 2008
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 679712-99 | Recompletion | San Isidro Development Co, L. C. | Mar 20, 2009 | Mar 23, 2009 | Jun 27, 2008 | 12,868 |
| 502420-98 | Drill | Saxet Energy, Ltd. | Aug 10, 2001 | Nov 28, 2000 | — | 12,868 |
| 502420-99 | Drill | Saxet Energy, Ltd. | Nov 28, 2000 | Nov 28, 2000 | Dec 8, 2000 | 14,000 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — G-3-186895 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 51 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Frio | 7,028 | -6,977 |
| Sartweller | 8,590 | -8,539 |
| Blanche | 9,680 | -9,629 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 12,498 | 12,728 | Perforated |
| 12,526 | 12,534 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 13.375 | 2,500 | 17.5 | 1,885 S |
| 9.625 | 10,257 | 12.25 | 520 S |
| 2.875 | 12,702 | 4.125 | 255 S |
| 5.5 | 12,868 | 6.5 | 235 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 | Nov 19, 2009 | Apr 20, 2009 | — |
| 00 | Mar 7, 2002 | Sep 6, 2001 | Yes |
| 00 | Feb 22, 2002 | — | — |
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 42-321-31861 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-321-31861 → 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/32131861, documented in the API reference.