42-355-31566

Final Completion

HEFTE MARY TOM ET AL

NUECES County · District 4 · HARPER HEFTE INC. · AGUA DULCE (RIVERS)

Permits

Max Depth

6,700 ft

First Permit

1980-04-25

Latest Activity

1987-11-18

Lifespan

8 yrs

Regulatory Status

Schedule

OFF SCHEDULE

Completion

1980-05-22

Shut-In

—

Plugged

2007-08-29

Production Summary

Cum Oil

— bbl

Cum Gas

— mcf

First Production

1993-01

Last Production

2020-01

Lease Production

Production is reported at the lease level. View production data, decline curves, and history on the lease page.

Formation Tops (4) Elevation 93 ft (GR)

CSV

Formation	Top Depth (MD)	Subsea (+above / −below SL)
CATAHOULA	3,840 ft	-3,747 ft
COMSTOCK	4,910 ft	-4,817 ft
FRIO	5,270 ft	-5,177 ft
LOWER FRIO (Frio)	5,270 ft	-5,177 ft

As reported by operators on W-2/G-1 completion filings (RRC wellbore records). Depths are measured depth; names appear as filed. Subsea = reported elevation − measured depth (negative = below sea level; vertical wellbores only). View filings & logs at RRC ↗

Perforations (3)

Interval	Type
5,304–5,310 ft	Perforated
5,920–5,925 ft	Perforated
6,147–6,152 ft	Perforated

Casing (4)

Size	Set Depth	Cement
8.625"	1,182 ft	510 sx
2.375"	5,266 ft	—
4.5"	6,225 ft	310 sx
4.2"	6,225 ft	310 sx

Permit History (2)

#338849 Recompletion Final Completion

HEFTE, MARY T. ET AL · 6,700 ft

1987-11-18

#79260 Drill Final Completion

HEFTE, MARY TOM EST. · 6,700 ft

1980-04-25

Applications (2)

#338849 A HARPER HEFTE, INC.

received 1987-11-16

#79260 A HEFTE, MARY TOM

received 1980-04-25

Records & Logs

5 completion filings on record.

W-2/G-1 2001-05-08

W-2/G-1 2001-06-05

W-2/G-1 1987-11-12

W-2/G-1 1988-01-06

W-2/G-1 1980-06-20

Completion packets + logs ↗ Wellbore filings ↗

Completion packets open directly (post-2011 filings include attached logs). Log images can't be deep-linked — clicking copies the API for you to paste.

No GPS coordinates yet

Coordinates come from the RRC GIS backfill and usually appear within days of permit issuance. Located in NUECES County.

Well Details

Well Number: 9
Max Depth: 6,700 ft
Drill Type: Vertical
County: NUECES
District: 4
Operator: HARPER HEFTE INC.
Completed: 1980-05-22

Operator

Name: HARPER HEFTE, INC
Location: CORPUS CHRI, ST
P-5 Status: Active (filed 2026-04-16)
Cum Oil (all leases): 247,395 bbl
Cum Gas (all leases): 4,331,023 mcf
Activities: CSGD/P, G/PUR, OPRS/G
Total Permits: 87