KOESTER "A"

Oil · District 09 · Lease #28395

Operator: FARMER OPERATING, LLC

Cum Oil

14k BBL

Cum Gas

21 MCF

casinghead

Wells

1

Production

1993-01 — 2012-02

Peak Month

1993-01

Production History

Cum Oil: 13,875 BBL Cum Gas: 21 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

235 BBL/mo

Di (annual)

63.3%

b-factor

0.8

EUR

12,427 BBL

R-squared

0.401

type

hyperbolic

Operator History (from monthly production reports)

2008-11 — 2013-11 FARMER OPERATING, LLC 61 mo
2005-05 — 2008-10 FARMER, LEWIS & HAYDEN 42 mo
1993-01 — 2005-04 BLACK STAR OIL COMPANY 148 mo

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
1FARMER OPERATING LLC15,1001992-08-18