HOWENSTINE -A-

Oil · District 08 · Lease #1440

Operator: VIN FISHER OPERATING, INC.

Fields: FORT STOCKTON

Cum Oil

111k BBL

Cum Gas

88 MCF

casinghead

Wells

3

Production

1993-01 — 2026-04

Peak Month

1993-01

Production History

Cum Oil: 111,370 BBL Cum Gas: 88 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

977 BBL/mo

Di (annual)

10.2%

b-factor

0.0

EUR

114,307 BBL

R-squared

0.903

type

exponential

Operator History (from monthly production reports)

2022-02 — 2026-07 BEAVER OIL & GAS OPERATING, LLC 54 mo
2017-02 — 2022-01 ERNMAR INVESTMENTS, INC. 60 mo
2015-01 — 2017-01 VIN FISHER OPERATING, INC. 25 mo
2010-04 — 2014-12 BURLESON PETROLEUM, INC. 57 mo
1993-01 — 2010-03 BURLESON, LEWIS B. INC. 207 mo

Wells (3)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
5BEAVER OIL & GAS OPERATING, LLC13,0001991-06-27
1W42-371-00948BEAVER OIL & GAS OPERATING, LLC------
342-371-00950BEAVER OIL & GAS OPERATING, LLC------