MATTHEWS

Oil · District 01 · Lease #18901

Operator: FIRST ROCK, INC.

Cum Oil

1k BBL

Cum Gas

454 MCF

casinghead

Wells

1

Production

2015-12 — 2016-09

Peak Month

2016-01

Production History

Cum Oil: 1,348 BBL Cum Gas: 454 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

359 BBL/mo

Di (annual)

360.1%

b-factor

0.0

EUR

1,203 BBL

R-squared

0.753

type

exponential

Operator History (from monthly production reports)

2015-12 — 2026-07 FIRST ROCK, INC. 128 mo

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
1HFIRST ROCK INC.39,7502016-07-12