HARBAUGH

Oil · District 10 · Lease #5635

Operator: SAPIENT ENERGY CORP

Cum Oil

428k BBL

Cum Gas

872k MCF

casinghead

Wells

3

Production

1993-01 — 2012-09

Peak Month

1993-01

Production History

Cum Oil: 428,391 BBL Cum Gas: 871,839 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

2,896 BBL/mo

Di (annual)

13.9%

b-factor

0.2

EUR

303,865 BBL

R-squared

0.658

type

hyperbolic

Operator History (from monthly production reports)

2014-11 — 2014-12 CHESAPEAKE OPERATING, L.L.C. 2 mo
2002-02 — 2014-10 CHESAPEAKE OPERATING, INC. 153 mo
1999-09 — 2002-01 SAPIENT ENERGY CORP 29 mo
1993-01 — 1999-08 PLAINS PETROLEUM OPERATING CO. 80 mo

Wells (3)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
43CHESAPEAKE OPERATING L.L.C.29,0001994-01-10
21COURSON OIL & GAS INC.19,0001985-01-17
1147COURSON OIL & GAS INC.27,9001983-10-26