ANN COLE TRUST

Oil · District 08 · Lease #44407

Operator: R K PETROLEUM CORP.

Cum Oil

86k BBL

Cum Gas

115k MCF

casinghead

Wells

1

Production

2013-09 — 2026-04

Peak Month

2014-03

Production History

Cum Oil: 85,758 BBL Cum Gas: 114,641 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

2,879 BBL/mo

Di (annual)

221.8%

b-factor

1.4

EUR

126,010 BBL

R-squared

0.884

type

hyperbolic

Operator History (from monthly production reports)

2021-10 — 2026-07 DIAMONDBACK E&P LLC 58 mo
2016-10 — 2021-09 QEP ENERGY COMPANY 60 mo
2013-09 — 2016-09 R K PETROLEUM CORP. 37 mo

Wells (1)

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