← Wells

42-489-00205

Final Completion

SAUZ RANCH MULATOS PASTURE

WILLACY County · District 4 · PIONEER NATURAL RES. USA, INC.

Permits

3

Max Depth

7,951 ft

First Permit

1981-09-28

Latest Activity

1998-07-03

Lifespan

17 yrs

Regulatory Status

Schedule

OFF SCHEDULE

Completion

—

Shut-In

—

Plugged

—

Production Summary

Cum Oil

— bbl

Cum Gas

— mcf

First Production

1993-01

Last Production

2026-07

Operator History

Chain of Custody

EXXON CORP. 1993-1995→ PARKER & PARSLEY DEVELOPMENT L.P 1996-1997→ PIONEER NATURAL RES. USA, INC. 1997-1999→ PRIZE OPERATING COMPANY 1999-2002→ GRUY PETROLEUM MANAGEMENT CO. 2002-2006→ CIMAREX ENERGY CO. OF COLORADO 2006-2011→ FLINT OAK ENERGY, LLC 2011-2014→ CHESTNUT EXPLOR. AND PROD., INC. 2014-2017

Lease Production

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

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 (3)

IntervalType
6,290–6,302 ftPerforated
7,832–7,876 ftPerforated
7,885–7,930 ftPerforated

Casing (2)

SizeSet DepthCement
9.625"1,539 ft—
5.5"7,941 ft—

Permit History (3)

#477689 Recompletion Final Completion

SAUZ RANCH MULATOS PASTURE · 7,820 ft

1998-07-03

Spud 1986-03-05

#228797 Recompletion

SAUZ RANCH MULATOS PASTURE · 7,951 ft

1984-02-08

#134613 Recompletion

SAUZ RANCH MULATOS PAST. · 7,951 ft

1981-09-28

Applications (3)

#477689 A PIONEER NATURAL RES. USA, INC.
received 1998-07-03
#228797 A EXXON CORP.
received 1984-02-07
#134613 A EXXON CORP.
received 1981-09-28

Records & Logs

3 completion filings on record.

W-2/G-1 1986-05-29
W-2/G-1 1986-06-10
W-2/G-1 1984-01-12
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 WILLACY County.

Well Details

Well Number
10
Max Depth
7,951 ft
Drill Type
Vertical
County
WILLACY
District
4
Operator
PIONEER NATURAL RES. USA, INC.

Operator

Location
Y SPRING
P-5 Status
Active (filed 2025-08-01)
Cum Oil (all leases)
1,771,882,421 bbl
Cum Gas (all leases)
1,763,727,021 mcf
Activities
CSGD/G, CSGD/P, G/PUR, GTHS/G, GTHS/O, OPRS/G, OPRS/O
Total Permits
15,400