IRVIN

Oil · District 10 · Lease #31998

Operator: PIONEER NATURAL RES. USA, INC.

Cum Oil

43k BBL

Cum Gas

0 MCF

Wells

2

Production

1993-01 — 2015-07

Peak Month

1998-03

Production History

Cum Oil: 42,738 BBL Cum Gas: 0 MCF

Decline Curve Analysis

qi

282 BBL/mo

Di (annual)

12.4%

b-factor

0.0

EUR

27,251 BBL

R-squared

0.535

type

exponential

Wells (2)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
1PARKER & PARSLEY PETROLEUM CO.19,5251988-08-10
2PARKER & PARSLEY PETROLEUM CO.19,5251988-07-20
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