< leases

GLADDEN HEIRS '67'

Oil · District 09 · Lease #15210

Operator: UPTEX OPERATING, L.P.

Fields: DILLARD, SE. (ELLENBURGER)

Cum Oil

12k BBL

Cum Gas

16k MCF

casinghead

Wells

1

Production

1993-01 — 2018-11

Peak Month

2005-03

Production History

Cum Oil: 12,230 BBL Cum Gas: 16,401 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

249 BBL/mo

Di (annual)

28.0%

b-factor

0.0

EUR

10,631 BBL

R-squared

0.601

type

exponential

Operator History (from monthly production reports)

2016-10 — 2026-07 LEGACY EXPLORATION, LLC I 118 mo
2014-08 — 2016-09 DALLAS PETROLEUM GROUP, LLC 26 mo
2013-05 — 2014-07 G & F OIL, INC. 15 mo
2011-06 — 2013-04 DOMINION NATURAL RESOURCES LLC 23 mo
2010-06 — 2011-05 UPTEX OPERATING INC. 12 mo
2008-06 — 2010-05 UPTEX OPERATING, L.P. 24 mo
2004-04 — 2008-05 TRACKER MINERAL 50 mo
1993-01 — 2004-03 DEWEBER ENERGY 135 mo

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
142-077-02283LEGACY EXPLORATION LLC I16,4422018-06-01