GRAVES "A"

Oil · District 8 · Lease #25366

Operator: WINDOW OPERATING CO., THE

Cum Oil

24k BBL

Cum Gas

0 MCF

Wells

3

Production

1993-01 — 2026-03

Peak Month

1996-11

Production History

Cum Oil: 24,465 BBL Cum Gas: 0 MCF

Decline Curve Analysis

qi

240 BBL/mo

Di (annual)

75.0%

b-factor

0.7

EUR

9,684 BBL

R-squared

0.497

type

hyperbolic

Wells (3)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
3WESTERN SKY OIL & GAS13,0001990-02-27
2WESTERN SKY OIL & GAS13,0001989-10-12
1WESTERN SKY OIL & GAS14,5001989-01-25
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