MCLAIN -A-

Oil · District 10 · Lease #4285

Operator: WILBANKS EXPLORATION, INC.

Cum Oil

40k BBL

Cum Gas

139k MCF

casinghead

Wells

2

Production

1993-01 — 2006-03

Peak Month

1997-09

Production History

Cum Oil: 39,683 BBL Cum Gas: 139,374 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

416 BBL/mo

Di (annual)

8.0%

b-factor

0.1

EUR

65,831 BBL

R-squared

0.676

type

hyperbolic

Operator History (from monthly production reports)

2000-04 — 2006-09 APACHE CORPORATION 78 mo
1998-12 — 2000-03 CRESCENDO RESOURCES, L.P. 16 mo
1998-09 — 1998-11 AMOCO PRODUCTION COMPANY 3 mo
1993-01 — 1998-08 WILBANKS EXPLORATION, INC. 68 mo

Wells (2)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
1APACHE CORPORATION410,0002009-02-05
2APACHE CORPORATION18,8001981-09-28