WELL · 42-507-31091 · DISTRICT 1
Spillar #1A
Zavala County · Judge Mills (Elaine) field · Vertical
Spillar #1A (API 42-507-31091) is a plugged well in Zavala County, plugged October 18, 2007, last operated by Winn Exploration/Dulce Company.
The RRC has issued 2 drilling permits between 1979 and 1989, permitted to 2,500 ft.
Completion filings report 5 formation tops, including Escondido, Olmos, Del Monte, Bracero.
Operator of record
Winn Exploration/Dulce Company
Eagle Pass, TX · P-5 Y, filed Oct 9, 1991 · 293 permits on file
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Winn Exploration/Dulce Company |
| Production reports | none |
| Latest permit | Winn Exploration/Dulce CompanyApr 19, 1989 |
- 2,500
- total depth, ft
- 2
- permits on file
- Apr 19, 1989
- last permit issued
- Feb 21, 1979
- completed
- 0
- cumulative oil, bbl
- 0
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Oct 2007
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- Feb 21, 1979
- Shut in
- —
- Plugged
- Oct 18, 2007
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 |
|---|---|---|---|---|---|---|
| Spillar G-1-130828 | Judge Mills (del Monte) | Brazos Petroleum, Inc. | 1 | 0 | 0 | Jan 1993 – Oct 2007 |
No volumes reported on these leases in the last three years.
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 358226-99 | Recompletion | Winn Exploration/Dulce Company | Apr 17, 1989 | Apr 19, 1989 | — | 1,768 |
| 42598-99 | Drill | Sundown Drilling Co. | Feb 16, 1979 | Feb 16, 1979 | Feb 1, 1979 | 2,500 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — G-1-130828 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 805 ft elevation.Download CSV →
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 1,588 | 1,596 | Perforated |
| 1,720 | 1,736 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 8.625 | 330 | 12.25 | 215 S |
| 2.375 | 1,682 | — | — |
| 4.5 | 1,815 | 7.875 | 395 S |
| 4.5 | — | 7.875 | 395 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 | Jul 7, 1989 | May 23, 1989 | Yes |
| 00 | Jun 7, 1989 | — | — |
| 00 | Jan 12, 1984 | Jul 29, 1981 | — |
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 42-507-31091 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-507-31091 → 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/50731091, documented in the API reference.