TEXAS "HH"

Oil · District 08 · Lease #39290

Operator: STRONGHOLD ENERGY II OPER, LLC

Fields: UNIVERSITY WADDELL (MCKEE)

Cum Oil

6k BBL

Cum Gas

7k MCF

casinghead

Wells

1

Production

2008-11 — 2009-11

Peak Month

2008-12

Production History

Cum Oil: 6,381 BBL Cum Gas: 7,059 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

1,265 BBL/mo

Di (annual)

837.6%

b-factor

1.7

EUR

36,193 BBL

R-squared

0.939

type

hyperbolic

Operator History (from monthly production reports)

2022-09 — 2026-07 RING ENERGY, INC. 47 mo

2019-01 — 2022-08 STRONGHOLD ENERGY II OPER, LLC 44 mo

2008-11 — 2018-12 DEVON ENERGY PRODUCTION CO, L.P. 122 mo

Wells (1)

WELL#	API	OPERATOR	PERMITS	DEPTH	LAST_ISSUED
13	42-103-33500	RING ENERGY, INC.	2	11,000	2008-10-20