WILLIS '40'

Oil · District 08 · Lease #23821

Operator: WING CORPORATION

Cum Oil

73k BBL

Cum Gas

252k MCF

casinghead

Wells

3

Production

1993-01 — 2011-10

Peak Month

1995-07

Production History

Cum Oil: 72,741 BBL Cum Gas: 251,764 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

836 BBL/mo

Di (annual)

15.3%

b-factor

0.0

EUR

65,497 BBL

R-squared

0.594

type

exponential

Operator History (from monthly production reports)

2001-07 — 2015-06 ENDEAVOR ENERGY RESOURCES L.P. 168 mo
2000-07 — 2001-06 ALPINE RESOURCES, INC. 12 mo
1998-10 — 2000-06 WING CORPORATION 21 mo
1993-01 — 1998-09 BAXTER, MURPHY H. 69 mo

Wells (3)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
1040ENDEAVOR ENERGY RESOURCES L.P.110,5401989-01-12
3040ENDEAVOR ENERGY RESOURCES L.P.19,2001986-02-03
242-329-00219ENDEAVOR ENERGY RESOURCES L.P.------