WELL · 42-163-33358 · DISTRICT 1
Williamson #1
Frio County · Wildcat field · Vertical
Williamson #1 (API 42-163-33358) is a plugged well in Frio County, plugged March 4, 2010, last operated by Espada Operating LLC.
The RRC has issued 2 drilling permits between 2007 and 2009, permitted to 6,000 ft.
Completion filings report 5 formation tops, including Ac, Austin Chalk, Eagle Ford, Ef.
Operator of record
San Antonio, TX · P-5 Y, filed Jun 29, 2026 · 25 permits on file · (210) 860-1587
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Espada Operating LLC |
| Production reports | none |
| Latest permit | Espada Operating LLCMay 14, 2009 |
- 6,000
- total depth, ft
- 2
- permits on file
- May 14, 2009
- last permit issued
- May 26, 2009
- completed
- 0
- cumulative oil, bbl
- 0
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 2008 THROUGH Jun 2010
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- May 26, 2009
- Shut in
- —
- Plugged
- Mar 4, 2010
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 |
|---|---|---|---|---|---|---|
| Williamson O-1-14925 | Wildcat | Espada Operating LLC | 1 | 0 | 0 | Jan 2008 – Jun 2010 |
No volumes reported on these leases in the last three years.
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 681209-99 | Recompletion | Espada Operating LLC | May 12, 2009 | May 14, 2009 | May 20, 2009 | 6,000 |
| 650887-99 | Drill | Alamo Operating Company, L. C. | Dec 6, 2007 | Dec 28, 2007 | Dec 27, 2007 | 6,000 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — O-1-14925 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 657 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| AC | 2,728 | -2,071 |
| Austin Chalk | 2,728 | -2,071 |
| Eagle FordEAGLEFORD | 3,018 | -2,361 |
| EF | 3,018 | -2,361 |
| Buda | 3,085 | -2,428 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 3,090 | 3,156 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 9.625 | 1,152 | 13.5 | 600 S |
| 7 | 3,200 | 8.75 | 335 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 | Jan 27, 2010 | Sep 16, 2009 | — |
| 00 | Jun 13, 2008 | May 22, 2008 | Yes |
| 00 | May 29, 2008 | — | — |
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 42-163-33358 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-163-33358 → 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/16333358, documented in the API reference.