STATE -KK-

Oil · District 08 · Lease #15837

Operator: STRONGHOLD ENERGY II OPER, LLC

Cum Oil

174k BBL

Cum Gas

205k MCF

casinghead

Wells

7

Production

1993-01 — 2017-01

Peak Month

1994-03

Production History

Cum Oil: 173,587 BBL Cum Gas: 205,258 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

1,170 BBL/mo

Di (annual)

6.9%

b-factor

0.0

EUR

196,795 BBL

R-squared

0.591

type

exponential

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
2000-04 — 2018-12 DEVON ENERGY PRODUCTION CO, L.P. 225 mo
1999-03 — 2000-03 PENNZENERGY EXP. & PROD., L.L.C. 13 mo
1995-02 — 1999-02 PENNZOIL EXPLORATION & PROD. CO. 49 mo
1993-01 — 1995-01 PENNZOIL PETROLEUM COMPANY 25 mo

Wells (7)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
11DEVON ENERGY PRODUCTION CO, L.P.24,0752017-04-28
13RING ENERGY, INC.19,3002009-06-10
1042-103-00313RING ENERGY INC.------
10W42-103-00313RING ENERGY INC.------
1242-103-10046RING ENERGY INC.------
14W42-103-10267RING ENERGY INC.------
942-103-00312RING ENERGY INC.------