WELL · 42-131-39339 · DISTRICT 4

Tinney W. A. Est. #8

Duval County · Piedras Pintas Dome field · Producing · Vertical

Tinney W. A. Est. #8 (API 42-131-39339) is a well in Duval County operated by Chapco Inc., completed August 28, 2013 and listed as producing on the RRC schedule.

The RRC has issued one drilling permit, issued December 11, 2012, permitted to 2,500 ft.

Completion filings report one formation top, including Frio.

Its lease has reported 24.7K barrels of oil and 9 mcf of gas since January 1993, last reporting in July 2026. The lease carries 4 wells, so these are lease totals, not this well alone.

Operator of record

Chapco Inc.

Benavides, TX · P-5 Y, filed Jan 4, 2026 · 30 permits on file · (361) 256-4726

SOURCE · RRC EWA WELLBORE SCHEDULE

What each RRC source says

Wellbore schedule	Chapco Inc.
Production reports	Chapco, Inc.through Jan 2026
Latest permit	Chapco, Inc.Dec 11, 2012

2,500: total depth, ft
1: permits on file
Dec 11, 2012: last permit issued
Aug 28, 2013: completed
24.7K: cumulative oil, bbl
9: cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Jul 2026

Regulatory status · RRC wellbore file

Schedule: ON SCHEDULE
Completed: Aug 28, 2013
Shut in: —
Plugged: —

Operator's P-5 on the schedule: Delinquent

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

Lease	Field	Reporting operator	Wells	Oil, bbl	Gas, mcf	Reported
Tinney, W. A., Est. O-4-2092	Piedras Pintas Dome	Chapco, Inc.	4	24.7K	9	Jan 1993 – Jul 2026

Oil, barrels lease total

Last 12 months 43 · prior 12 87(-51%)

Chain of custody

Every operator that reported production on this well's lease, in order.

1Norco Oil & Gas, Inc.Jan 1993 → Apr 1993
2Chapco, Inc.May 1993 → Jan 2026

Permits

Permit	Type	Operator	Received	Issued	Spud	Depth
752277-99	Drill	Chapco, Inc.	Nov 28, 2012	Dec 11, 2012	Dec 10, 2012	2,500

Completions

Completed	Lease	Field	Operator	Status	Depth
—	— O-4-2092	—	—	—	—

Formation tops

As filed on W-2/G-1. Subsea from 370 ft elevation.Download CSV →

Formation	MD ft	Subsea
FrioFRIO OIL SAND	598	-228

Perforations

Perforated and open-hole intervals.

From	To	Type
1,911	1,917	Perforated

Casing

Strings as reported, shallowest first.

Casing in	Set at	Hole in	Cement
7.625	600	9.75	150 S
4.5	2,032	6.75	561 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 8, 2015	Dec 6, 2013	Yes

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 42-131-39339 → W-2, G-1, plugging reports, as PDFs
Completion packets for 42-131-39339 → 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/13139339, documented in the API reference.