ROBBINS "1"

Oil · District 9 · Lease #17739

Operator: PIONEER NATURAL RES. USA, INC.

Cum Oil

288k BBL

Cum Gas

0 MCF

Wells

3

Production

2011-11 — 2026-03

Peak Month

2013-03

Production History

Cum Oil: 288,179 BBL Cum Gas: 0 MCF

Decline Curve Analysis

qi

4,526 BBL/mo

Di (annual)

29.0%

b-factor

0.3

EUR

262,619 BBL

R-squared

0.531

type

hyperbolic

Wells (3)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
4PIONEER NATURAL RES. USA, INC.110,4002012-08-09
2PIONEER NATURAL RES. USA, INC.110,0002011-11-18
1PIONEER NATURAL RES. USA, INC.110,0002011-07-29
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