HARKINS

Oil · District 02 · Lease #6526

Operator: HARWOOD EXPLORATION, INC.

Cum Oil

301k BBL

Cum Gas

885k MCF

casinghead

Wells

6

Production

1993-01 — 2019-04

Peak Month

1997-03

Production History

Cum Oil: 300,743 BBL Cum Gas: 884,672 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

4,122 BBL/mo

Di (annual)

36.5%

b-factor

0.5

EUR

244,034 BBL

R-squared

0.937

type

hyperbolic

Operator History (from monthly production reports)

1998-06 — 2023-02 CHARRO OPERATING, L.L.C. 297 mo
1995-09 — 1998-05 EXPORT PETROLEUM CORPORATION 33 mo
1993-01 — 1995-08 HARWOOD EXPLORATION, INC. 32 mo

Wells (6)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
6 TCHARRO OPERATING, L.L.C.35,5102018-10-18
13CHARRO OPERATING L.L.C.15,4001997-01-07
12CHARRO OPERATING L.L.C.15,4001996-10-25
5 TCHARRO OPERATING L.L.C.15,5001985-10-09
4CHARRO OPERATING L.L.C.25,5001985-03-22
4 TCHARRO OPERATING L.L.C.25,5001985-03-22