WELL · 42-507-32079 · DISTRICT 1

Heard #1

Plugged

Zavala County · Curtis (Olmos) field · Vertical

Heard #1 (API 42-507-32079) is a plugged well in Zavala County, plugged March 7, 1997, last operated by J-W Operating CO..

The RRC has issued one drilling permit, issued August 31, 1984, permitted to 1,500 ft.

It was permitted by Matzinger Petroleum CO and has since transferred to J-W Operating CO. on the wellbore schedule.

Completion filings report 5 formation tops, including Wilcox, Navarro, Escondido, Olmos.

Operator of record

J-W Operating Co.

Permitted by Matzinger Petroleum Co; the EWA schedule now lists a different operator.

Addison, TX · P-5 Y, filed Apr 4, 2026 · 350 permits on file · (903) 312-9595

SOURCE · RRC EWA WELLBORE SCHEDULE

What each RRC source says

Wellbore schedule	J-W Operating Co.
Production reports	J-W Operating Co.through Feb 1997
Latest permit	Matzinger Petroleum CoAug 31, 1984

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

1,500: total depth, ft
1: permits on file
Aug 31, 1984: last permit issued
Dec 10, 1990: completed
0: cumulative oil, bbl
18.3K: cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Feb 1997

Regulatory status · RRC wellbore file

Schedule: OFF SCHEDULE
Completed: Dec 10, 1990
Shut in: —
Plugged: Mar 7, 1997

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
Heard G-1-114569	Curtis (Olmos)	J-W Operating Co.	1	0	18.3K	Jan 1993 – Feb 1997

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.

1J-W Operating Co.Jan 1993 → Feb 1997

Permits

Permit	Type	Operator	Received	Issued	Spud	Depth
251317-99	Drill	Matzinger Petroleum Co	Aug 23, 1984	Aug 31, 1984	—	1,500

Completions

Completed	Lease	Field	Operator	Status	Depth
—	— G-1-114569	—	—	—	—

Formation tops

As filed on W-2/G-1. Subsea from 745 ft elevation.Download CSV →

Formation	MD ft	Subsea
Wilcox	448	297
Navarro	570	175
Escondido	684	61
Olmos	1,012	-267
San Miguel	1,065	-320

Perforations

Perforated and open-hole intervals.

From	To	Type
752	758	Perforated
1,014	1,020	Perforated

Casing

Strings as reported, shallowest first.

Casing in	Set at	Hole in	Cement
6.625	183	8.75	40 S
2.875	1,170	5.75	207 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 →

Filed	W-2 / G-1 date	Logs referenced
Mar 13, 1991	Jan 10, 1991	—
Feb 8, 1985	Nov 16, 1984	—
Feb 1, 1985	Nov 7, 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 42-507-32079 → W-2, G-1, plugging reports, as PDFs
Completion packets for 42-507-32079 → 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/50732079, documented in the API reference.