WELL · 42-427-31434 · DISTRICT 4

Cook Vannie Trusts #D79

Plugged

Starr County · Los Olmos field · Vertical

Cook Vannie Trusts #D79 (API 42-427-31434) is a plugged well in Starr County, plugged June 13, 2008, last operated by Rns Oil CO..

The RRC has issued one drilling permit, issued May 23, 1980, permitted to 800 ft.

It was permitted by Duty Tool Company and has since transferred to Rns Oil CO. on the wellbore schedule.

Its lease has reported 12.3K barrels of oil and 18 mcf of gas since January 1993, last reporting in July 2026. The lease carries 59 wells, so these are lease totals, not this well alone.

Operator of record

RNS Oil Co.

Permitted by Duty Tool Company; the EWA schedule now lists a different operator.

Rio Grande CI, TX · P-5 Y, filed Oct 5, 2007

SOURCE · RRC EWA WELLBORE SCHEDULE

What each RRC source says

Wellbore schedule	RNS Oil Co.
Production reports	RNS Oil Co.through Dec 2004
Latest permit	Duty Tool CompanyMay 23, 1980

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

800: total depth, ft
1: permits on file
May 23, 1980: last permit issued
Sep 30, 1980: completed
12.3K: cumulative oil, bbl
18: cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Jul 2026

Regulatory status · RRC wellbore file

Schedule: OFF SCHEDULE
Completed: Sep 30, 1980
Shut in: —
Plugged: Jun 13, 2008

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 59 wells in total, so volumes are shared.Why →

Lease	Field	Reporting operator	Wells	Oil, bbl	Gas, mcf	Reported
Cook, Vannie, Trusts O-4-6247	Los Olmos	RNS Oil Co.	59	12.3K	18	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.

1Schiefelbein & Lagrange Oil Co.Jan 1993 → Nov 2000
2Rodeheaver, Charles G.Dec 1997 → Sep 1998
3RNS Oil Co.Dec 2000 → Dec 2004

Permits

Permit	Type	Operator	Received	Issued	Spud	Depth
82086-99	Drill	Duty Tool Company	May 23, 1980	May 23, 1980	—	800

Completions

Completed	Lease	Field	Operator	Status	Depth
—	— O-4-6247	—	—	—	—

Perforations

Perforated and open-hole intervals.

From	To	Type
427	440	Perforated

Casing

Strings as reported, shallowest first.

Casing in	Set at	Hole in	Cement
4.5	425	6.75	60 S
2	425	—	—

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	Jan 14, 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 42-427-31434 → W-2, G-1, plugging reports, as PDFs
Completion packets for 42-427-31434 → 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/42731434, documented in the API reference.