UNIVERSITY"58-7"

Oil · District 9 · Lease #16498

Operator: PIONEER NATURAL RES. USA, INC.

Cum Oil

280k BBL

Cum Gas

0 MCF

Wells

8

Production

2008-01 — 2026-03

Peak Month

2010-10

Production History

Cum Oil: 280,108 BBL Cum Gas: 0 MCF

Decline Curve Analysis

qi

5,393 BBL/mo

Di (annual)

26.7%

b-factor

0.0

EUR

241,963 BBL

R-squared

0.893

type

exponential

Wells (8)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
8PIONEER NATURAL RES. USA, INC.110,8002010-12-20
10PIONEER NATURAL RES. USA, INC.110,7002010-11-30
6PIONEER NATURAL RES. USA, INC.111,0002010-03-04
4PIONEER NATURAL RES. USA, INC.110,5002008-10-30
5PIONEER NATURAL RES. USA, INC.210,5002008-10-30
3PIONEER NATURAL RES. USA, INC.110,5002008-05-08
2PIONEER NATURAL RES. USA, INC.110,5002007-12-17
1PIONEER NATURAL RES. USA, INC.110,3252007-10-16
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