STANLEY

Oil · District 10 · Lease #31646

Operator: PIONEER NATURAL RES. USA, INC.

Cum Oil

122k BBL

Cum Gas

0 MCF

Wells

4

Production

1993-01 — 2026-03

Peak Month

2012-07

Production History

Cum Oil: 122,195 BBL Cum Gas: 0 MCF

Decline Curve Analysis

qi

1,487 BBL/mo

Di (annual)

24.7%

b-factor

0.0

EUR

72,110 BBL

R-squared

0.579

type

exponential

Wells (4)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
4PIONEER NATURAL RES. USA, INC.111,3852011-11-22
3PIONEER NATURAL RES. USA, INC.111,3852011-11-03
2PARKER & PARSLEY PETROLEUM CO.19,5251987-10-23
1PARKER & PARSLEY PETROLEUM CO.19,5251987-10-12
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