WELL · 42-355-33041 · DISTRICT 4

Hefte Mary Tom et AL #12

Plugged

Nueces County · Agua Dulce (6240) field · Vertical

Hefte Mary Tom ET AL #12 (API 42-355-33041) is a plugged well in Nueces County, plugged February 15, 2023, last operated by Harper Hefte Inc..

The RRC has issued one drilling permit, issued June 14, 1996, permitted to 6,750 ft.

Completion filings report 3 formation tops, including Het, Comstock, Frio.

Its lease has reported 6.26K barrels of oil and 29K mcf of gas since July 1996, last reporting in June 2024.

Operator of record

Harper Hefte Inc.

Corpus Christ, TX · P-5 Active, filed Apr 16, 2026 · 87 permits on file · (361) 242-9149

SOURCE · RRC EWA WELLBORE SCHEDULE

What each RRC source says

Wellbore schedule	Harper Hefte Inc.
Production reports	Harper Hefte, Inc.through Aug 2021
Latest permit	Harper Hefte, Inc.Jun 14, 1996

6,750: total depth, ft
1: permits on file
Jun 14, 1996: last permit issued
Jul 27, 1996: completed
6.26K: cumulative oil, bbl
29K: cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · Jul 1996 THROUGH Jun 2024

Regulatory status · RRC wellbore file

Schedule: OFF SCHEDULE
Completed: Jul 27, 1996
Shut in: —
Plugged: Feb 15, 2023

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
Hefte, Mary Tom et AL O-4-12591	Agua Dulce (6240)	Harper Hefte, Inc.	1	6.26K	29K	Jul 1996 – Jun 2024

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.

1Harper Hefte, Inc.Jul 1996 → Aug 2021

Permits

Permit	Type	Operator	Received	Issued	Spud	Depth
449330-99	Drill	Harper Hefte, Inc.	Jun 14, 1996	Jun 14, 1996	Jul 6, 1996	6,750

Completions

Completed	Lease	Field	Operator	Status	Depth
—	— O-4-12591	—	—	—	—

Formation tops

As filed on W-2/G-1. Subsea from 99 ft elevation.Download CSV →

Formation	MD ft	Subsea
Het	3,830	-3,731
Comstock	4,818	-4,719
FrioMIDDLE FRIO	5,560	-5,461

Perforations

Perforated and open-hole intervals.

From	To	Type
6,205	6,210	Perforated

Casing

Strings as reported, shallowest first.

Casing in	Set at	Hole in	Cement
8.625	702	12.25	254 S
4.5	6,360	7.875	205 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	Oct 21, 1996	Aug 6, 1996	Yes
00	Aug 30, 1996	—	—

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 42-355-33041 → W-2, G-1, plugging reports, as PDFs
Completion packets for 42-355-33041 → 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/35533041, documented in the API reference.