ANN COLE TRUST

Oil · District 08 · Lease #39231

Operator: R K PETROLEUM CORP.

Fields: RK (STRAWN)

Cum Oil

70k BBL

Cum Gas

67k MCF

casinghead

Wells

1

Production

2009-02 — 2013-08

Peak Month

2009-07

Production History

Cum Oil: 70,114 BBL Cum Gas: 66,684 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

3,680 BBL/mo

Di (annual)

127.0%

b-factor

0.6

EUR

79,429 BBL

R-squared

0.958

type

hyperbolic

Operator History (from monthly production reports)

2009-02 — 2015-06 R K PETROLEUM CORP. 77 mo

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
1DIAMONDBACK E&P LLC212,1002013-08-16