SIX HEARTS, LTD., ET AL

Oil · District 8A · Lease #68939

Operator: WHITE ROCK OIL & GAS, LLC

Cum Oil

237k BBL

Cum Gas

56k MCF

casinghead

Wells

1

Production

2005-12 — 2026-04

Peak Month

2021-05

Production History

Cum Oil: 236,745 BBL Cum Gas: 56,060 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

1,474 BBL/mo

Di (annual)

4.7%

b-factor

0.0

EUR

340,231 BBL

R-squared

0.718

type

exponential

Operator History (from monthly production reports)

2019-01 — 2026-07 WHITE ROCK OIL & GAS, LLC 91 mo
2005-12 — 2018-12 DEVON ENERGY PRODUCTION CO, L.P. 157 mo

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
1WHITE ROCK OIL & GAS, LLC25,7002005-10-19