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42-489-30879

Final Completion

SAUZ RANCH MULATOS PASTURE

WILLACY County · District 4 · FLINT OAK ENERGY LLC · WILLAMAR WEST (MIOCENE 6100)

Permits

5

Max Depth

9,075 ft

First Permit

1985-07-18

Latest Activity

2012-05-18

Lifespan

27 yrs

Regulatory Status

Schedule

OFF SCHEDULE

Completion

1996-10-31

Shut-In

—

Plugged

2024-10-03

!

EWA / Production operator mismatch

Scheduling: FLINT OAK ENERGY LLC ≠ Production: CHESTNUT EXPLOR. AND PROD., INC. (reported 2017-05)

Resolved via: scheduling → FLINT OAK ENERGY LLC

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 →
Oil
production & DCA →
Oil
production & DCA →

Formation Tops (2) Elevation 15 ft (GL)

CSV
FormationTop Depth (MD)Subsea (+above / −below SL)
MIOCENE (Miocene (undifferentiated))4,996 ft-4,981 ft
MIOCENE 6100 (Miocene (undifferentiated))6,130 ft-6,115 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 (4)

IntervalType
4,996–5,000 ftPerforated
5,020–5,030 ftPerforated
6,140–6,146 ftPerforated
7,869–7,897 ftPerforated

Casing (2)

SizeSet DepthCement
8.625"1,619 ft1,045 sx
5.5"8,064 ft955 sx

Permit History (5)

#740352 Recompletion Final Completion

SAUZ RANCH MULATOS PASTURE · 9,075 ft

2012-05-18

Spud 2012-06-18

#740352 Recompletion

SAUZ RANCH MULATOS PASTURE · 9,075 ft

2012-05-18

#453237 Recompletion

SAUZ RANCH MULATOS PASTURE · 9,065 ft

1996-10-03

#453237 Recompletion Final Completion

SAUZ RANCH MULATOS PASTURE · 9,065 ft

1996-10-03

Spud 1996-09-17

#280461 Drill Final Completion

SAUZ RANCH MULATOS PASTURE · 9,065 ft

1985-07-18

Spud 1985-09-28

Applications (5)

#740352 A FLINT OAK ENERGY, LLC
received 2013-02-18
#740352 A FLINT OAK ENERGY, LLC
received 2012-05-09
#453237 A PARKER & PARSLEY DEVELOPMENT L.P
received 1996-11-01
#453237 A PARKER & PARSLEY DEVELOPMENT L.P
received 1996-09-27
#280461 A EXXON CORP.
received 1985-06-20

Records & Logs

5 completion filings on record · 4 with log images at RRC.

W-2/G-1 2013-04-16 log on file
W-2/G-1 1996-11-15 log on file
W-2/G-1 1986-04-30 log on file
W-2/G-1 1986-04-30 log on file
W-2/G-1 1986-05-07
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
201
Max Depth
9,075 ft
Drill Type
Vertical
County
WILLACY
District
4
Operator
FLINT OAK ENERGY LLC
Completed
1996-10-31

Operator

Location
MONTGOMERY
P-5 Status
Active (filed 2026-04-15)
Cum Oil (all leases)
675,155 bbl
Cum Gas (all leases)
737,870 mcf
Activities
OPRS/G, OPRS/O
Total Permits
14