DONOVAN -D

Oil · District 10 · Lease #31955

Operator: PIONEER NATURAL RES. USA, INC.

Cum Oil

140k BBL

Cum Gas

0 MCF

Wells

3

Production

1993-01 — 2026-03

Peak Month

2012-10

Production History

Cum Oil: 140,235 BBL Cum Gas: 0 MCF

Decline Curve Analysis

qi

1,180 BBL/mo

Di (annual)

79.0%

b-factor

0.6

EUR

39,533 BBL

R-squared

0.743

type

hyperbolic

Wells (3)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
4PIONEER NATURAL RES. USA, INC.111,1002012-05-17
1PARKER & PARSLEY PETROLEUM CO.19,1501988-06-02
2PARKER & PARSLEY PETROLEUM CO.19,1501988-06-02
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