CURTIS "S"

Oil · District 10 · Lease #33420

Operator: PIONEER NATURAL RES. USA, INC.

Cum Oil

43k BBL

Cum Gas

0 MCF

Wells

2

Production

1993-01 — 2014-10

Peak Month

2013-03

Production History

Cum Oil: 43,086 BBL Cum Gas: 0 MCF

Decline Curve Analysis

qi

2,077 BBL/mo

Di (annual)

822.5%

b-factor

2.0

EUR

84,039 BBL

R-squared

0.967

type

hyperbolic

Wells (2)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
2PIONEER NATURAL RES. USA, INC.112,4002012-05-25
1PARKER & PARSLEY DEVELOPMENT CO.19,7501991-12-13
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