CURTIS "B"

Oil · District 10 · Lease #32936

Operator: PIONEER NATURAL RES. USA, INC.

Cum Oil

133k BBL

Cum Gas

0 MCF

Wells

2

Production

1993-01 — 2026-03

Peak Month

2011-07

Production History

Cum Oil: 133,325 BBL Cum Gas: 0 MCF

Decline Curve Analysis

qi

1,450 BBL/mo

Di (annual)

25.7%

b-factor

0.1

EUR

75,120 BBL

R-squared

0.594

type

hyperbolic

Wells (2)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
2PIONEER NATURAL RES. USA, INC.111,6502010-10-06
1PARKER & PARSLEY, LTD.19,7501990-10-25
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