CHRIESMAN

Oil · District 10 · Lease #17996

Operator: PIONEER NATURAL RES. USA, INC.

Cum Oil

98k BBL

Cum Gas

0 MCF

Wells

3

Production

1993-01 — 2026-03

Peak Month

2006-09

Production History

Cum Oil: 97,577 BBL Cum Gas: 0 MCF

Decline Curve Analysis

qi

1,154 BBL/mo

Di (annual)

79.5%

b-factor

1.6

EUR

109,568 BBL

R-squared

0.794

type

hyperbolic

Wells (3)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
3GRUY PETROLEUM MANAGEMENT CO.28,9502006-04-04
2HUGOTON ENERGY CORPORATION29,1001997-04-16
142-173-00716--------
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