WELL · 42-505-31086 · DISTRICT 4

Martinez-Vidaurri Unit #1

Plugged

Zapata County · Laredo (Lobo) field · Vertical

Martinez-Vidaurri Unit #1 (API 42-505-31086) is a plugged well in Zapata County, plugged December 1, 2005, last operated by Chevron U. S. A. Inc..

The RRC has issued one drilling permit, issued April 30, 1979, permitted to 9,350 ft.

It was permitted by Gulf Oil Corp. and has since transferred to Chevron U. S. A. Inc. on the wellbore schedule.

Operator of record

Chevron U. S. A. Inc.

Permitted by Gulf Oil Corp.; the EWA schedule now lists a different operator.

Based in: Midland, TX
P-5 status: Active (A)
P-5 last filed: Jan 30, 2026
Permits on file: 9,293
Phone: (866) 212-1212

SOURCE · RRC EWA WELLBORE SCHEDULE

What each RRC source says

Wellbore schedule	Chevron U. S. A. Inc.
Production reports	Chevron U. S. A. Inc.through Nov 1997
Latest permit	Gulf Oil Corp.Apr 30, 1979

The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.

9,350: total depth, ft
1: permits on file
Apr 30, 1979: last permit issued
Jan 18, 1984: completed
0: cumulative oil, bbl
167K: cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Nov 2005

Regulatory status · RRC wellbore file

Schedule: OFF SCHEDULE
Completed: Jan 18, 1984
Shut in: —
Plugged: Dec 1, 2005

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
Martinez-Vidaurri Unit G-4-83380	Laredo (Lobo)	Chevron U. S. A. Inc.	1	0	167K	Jan 1993 – Nov 2005

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.

1Chevron U. S. A. Inc.Jan 1993 → Nov 1997

Permits

Permit	Type	Operator	Received	Issued	Spud	Depth
47590-99	Drill	Gulf Oil Corp.	Apr 30, 1979	Apr 30, 1979	May 2, 1979	9,350

Completions

Completed	Lease	Field	Operator	Status	Depth
—	— G-4-83380	—	—	—	—

Perforations

Perforated and open-hole intervals.

From	To	Type
7,724	7,862	Perforated

Casing

Strings as reported, shallowest first.

Casing in	Set at	Hole in	Cement
10.75	1,013	13.5	600 S
7.625	6,200	9.875	650 S
2.375	7,186	—	—
5.5	8,075	6.75	600 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	Apr 16, 1984	Feb 17, 1984	—
00	Jan 12, 1984	Feb 17, 1984	—

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 42-505-31086 → W-2, G-1, plugging reports, as PDFs
Completion packets for 42-505-31086 → 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/50531086, documented in the API reference.