42-251-33196

PRODUCING Horizontal

WALKING T RANCH

JOHNSON County · District 9 · UPP OPERATING LLC · NEWARK EAST (BARNETT SHALE)

Permits

Max Depth

10,000 ft

First Permit

2007-12-10

Latest Activity

2008-08-13

Lifespan

< 1 yr

Regulatory Status

Schedule

ON SCHEDULE

Completion

2009-11-06

Shut-In

—

Plugged

—

P-5 Org Status: Active

EWA / Permit operator mismatch

Scheduling: UPP OPERATING LLC ≠ Permit: EOG RESOURCES, INC.

Resolved via: production → UPP OPERATING, LLC

Production Summary

Cum Oil

— bbl

Cum Gas

— mcf

First Production

2009-04

Last Production

2026-07

Operator History

Chain of Custody

EOG RESOURCES, INC. 2009-2016→ ENERVEST OPERATING, L.L.C. 2017-2019→ UPP OPERATING, LLC 2019-2026

Lease Production

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

Gas

production & DCA →

Formation Tops (6) Elevation 614 ft (GL)

CSV

Formation	Top Depth (MD)	Subsea (+above / −below SL)
STRAWN	2,016 ft	-1,402 ft
ATOKA	4,140 ft	-3,526 ft
BEND CONGL. (Bend)	5,766 ft	-5,152 ft
MARBLE FALLS	7,951 ft	-7,337 ft
BARNETT SHALE (Barnett)	8,282 ft	-7,668 ft
HOOD	—	—

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 (1)

Interval	Type
9,309–11,224 ft	Perforated

Casing (2)

Size	Set Depth	Cement
9.625"	2,037 ft	790 sx
5.5"	11,370 ft	896 sx

Permit History (2)

#650629 Drill Final Completion

WALKING T RANCH UNIT · 10,000 ft

2008-08-13

Spud 2009-04-13

#650629 Drill

WALKING T RANCH UNIT · 10,000 ft

2007-12-10

Spud 2009-04-13

Applications (2)

#650629 A EOG RESOURCES, INC.

received 2008-07-28

#650629 A EOG RESOURCES, INC.

received 2007-12-04

Records & Logs

3 completion filings on record · 1 with log images at RRC.

W-2/G-1 2010-01-20

W-2/G-1 2009-11-12 log on file

W-2/G-1 2010-01-11

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 JOHNSON County.

Well Details

Well Number: 8H
Max Depth: 10,000 ft
Drill Type: Horizontal
County: JOHNSON
District: 9
Operator: UPP OPERATING LLC
Completed: 2009-11-06

Operator

Name: UPP OPER, LLC
Location: HOUSTON
P-5 Status: Active (filed 2026-03-06)
Cum Oil (all leases): 293,241 bbl
Cum Gas (all leases): 486,804,996 mcf
Activities: CSGD/G, CSGD/P, G/PUR, GTHS/G, OPRS/G, OPRS/O
Total Permits: 33