WINDHAM "E"

Oil · District 7C · Lease #8627

Operator: HEC PETROLEUM, INC.

Cum Oil

14k BBL

Cum Gas

53k MCF

casinghead

Wells

1

Production

1993-01 — 2000-09

Peak Month

1994-03

Production History

Cum Oil: 13,700 BBL Cum Gas: 53,056 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

193 BBL/mo

Di (annual)

7.9%

b-factor

0.0

EUR

28,748 BBL

R-squared

0.526

type

exponential

Operator History (from monthly production reports)

2006-04 — 2007-02 CHEVRON MIDCONTINENT, L.P. 11 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 (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
1CHEVRON MIDCONTINENT L.P.19,8001980-09-15