DEVIL'S WATERHOLE UNIT

Oil · District 1 · Lease #3996

Operator: WILLIAMS KOLB & LINDENBORN, INC.

Cum Oil

243k BBL

Cum Gas

0 MCF

Wells

9

Production

1993-01 — 2026-03

Peak Month

1999-04

Production History

Cum Oil: 243,117 BBL Cum Gas: 0 MCF

Decline Curve Analysis

qi

3,120 BBL/mo

Di (annual)

27.9%

b-factor

0.0

EUR

134,357 BBL

R-squared

0.793

type

exponential

Wells (9)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
L 1PETRO-LEWIS CORPORATION18,8001984-09-27
A 142-311-30014--------
A 2V42-311-30053--------
L 10D42-311-30055--------
L 11D42-311-30052--------
L 4A42-311-30003--------
L 542-311-80428--------
L 642-311-30016--------
L 842-311-30028--------
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