< leases

HARTGROVE "B"

Oil · District 7C · Lease #8063

Operator: HEC PETROLEUM, INC.

Fields: SPRABERRY (TREND AREA)

Cum Oil

26k BBL

Cum Gas

87k MCF

casinghead

Wells

2

Production

1993-01 — 2013-05

Peak Month

1996-05

Production History

Cum Oil: 26,253 BBL Cum Gas: 86,974 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

392 BBL/mo

Di (annual)

103.1%

b-factor

1.0

EUR

18,079 BBL

R-squared

0.698

type

hyperbolic

Operator History (from monthly production reports)

2006-04 — 2013-11 CHEVRON MIDCONTINENT, L.P. 92 mo
2002-01 — 2006-03 HEC PETROLEUM, INC. 51 mo
1994-12 — 2001-12 HALLWOOD PETROLEUM, INC. 85 mo
1993-01 — 1994-11 HALLWOOD ENERGY CORPORATION 23 mo

Wells (2)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
142-383-31450CHEVRON MIDCONTINENT L.P.18,1001979-10-04
242-383-31449CHEVRON MIDCONTINENT L.P.18,1001979-10-04