WELL · 42-507-31403 · DISTRICT 1
Willoughby R.B. #6
Zavala County · Leona (Elaine) field · Vertical
Willoughby R.B. #6 (API 42-507-31403) is a plugged well in Zavala County, plugged March 1, 1998, last operated by Strata Star Petroleum Corp..
The RRC has issued one drilling permit, issued December 8, 1980, permitted to 3,350 ft.
It was permitted by Dinero Oil Corporation and has since transferred to Strata Star Petroleum Corp. on the wellbore schedule.
Its lease has reported 744 barrels of oil since January 1993, last reporting in July 2026. The lease carries 5 wells, so these are lease totals, not this well alone.
Operator of record
Permitted by Dinero Oil Corporation; the EWA schedule now lists a different operator.
Uvalde, TX · P-5 Y, filed Jan 3, 2020
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Strata Star Petroleum Corp. |
| Production reports | Strata Star Petroleum Corp.through Dec 1997 |
| Latest permit | Dinero Oil CorporationDec 8, 1980 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 3,350
- total depth, ft
- 1
- permits on file
- Dec 8, 1980
- last permit issued
- Jan 17, 1981
- completed
- 744
- cumulative oil, bbl
- 0
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- Jan 17, 1981
- Shut in
- —
- Plugged
- Mar 1, 1998
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; they carry 5 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Willoughby, R.B. O-1-6074 | Leona (Elaine) | Strata Star Petroleum Corp. | 5 | 744 | 0 | Jan 1993 – Jul 2026 |
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.
- 1Sand Dove Petroleum CorporationJan 1996 → Oct 1996
- 2Strata Star Petroleum Corp.Nov 1996 → Dec 1997
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 102274-99 | Drill | Dinero Oil Corporation | Dec 8, 1980 | Dec 8, 1980 | — | 3,350 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — O-1-6074 | — | — | — | — |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| — | 3,220 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 8.625 | 226 | 12.25 | 150 S |
| 4.5 | 3,303 | 8.75 | 950 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 12, 1984 | Feb 2, 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 42-507-31403 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-507-31403 → 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/50731403, documented in the API reference.