← Wells

42-507-30931

Long String Casing

MATTHEWS NED

ZAVALA County · District 1 · WILLIAMSON OPERATING CO. · PRYOR RANCH WEST (OLMOS)

Permits

1

Max Depth

2,700 ft

First Permit

1977-10-31

Latest Activity

1977-10-31

Lifespan

< 1 yr

Regulatory Status

Schedule

OFF SCHEDULE

Completion

1981-07-20

Shut-In

—

Plugged

2016-12-28

!

EWA / Permit operator mismatch

Scheduling: WILLIAMSON OPERATING CO. ≠ Permit: MORMAC OIL & GAS CO.

Resolved via: scheduling → WILLIAMSON OPERATING CO.

Production Summary

Cum Oil

— bbl

Cum Gas

— mcf

First Production

1993-01

Last Production

2026-07

Operator History

originally filed by MORMAC OIL & GAS CO. — asset transferred

Lease Production

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

Gas
production & DCA →
Oil
production & DCA →

Formation Tops

No tops on file for this well. Formation tops come from W-2/G-1 completion filings — this well has none yet, which is normal for permits that were never drilled, dry holes plugged without a filing, or wells completed before digital records. Offset-well tops can't be shown either — this well has no surface coordinates on file yet.

Check this well's filings at RRC ↗

Perforations (1)

IntervalType
2,553–2,630 ftPerforated

Casing (3)

SizeSet DepthCement
8.625"177 ft135 sx
2.375"2,504 ft—
4.5"2,699 ft310 sx

Permit History (1)

#10973 Drill Long String Casing

MATTHEWS, NED · 2,700 ft

1977-10-31

Applications (1)

#10973 A MORMAC OIL & GAS CO.
received 1977-10-31

Records & Logs

1 completion filing on record.

W-2/G-1 1978-01-23
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 ZAVALA County.

Well Details

Well Number
15
Max Depth
2,700 ft
Drill Type
Vertical
County
ZAVALA
District
1
Operator
WILLIAMSON OPERATING CO.
Completed
1981-07-20

Operator

Location
UVALDE
P-5 Status
Delinquent (filed 1997-04-16)
Cum Oil (all leases)
15,399 bbl
Cum Gas (all leases)
148,258 mcf
Activities
OPRS/G, OPRS/O
Total Permits
4