ULVESTAD

Oil · District 10 · Lease #32041

Operator: PIONEER NATURAL RES. USA, INC.

Cum Oil

174k BBL

Cum Gas

0 MCF

Wells

3

Production

1993-01 — 2026-03

Peak Month

2014-11

Production History

Cum Oil: 174,268 BBL Cum Gas: 0 MCF

Decline Curve Analysis

qi

3,029 BBL/mo

Di (annual)

41.8%

b-factor

0.5

EUR

158,799 BBL

R-squared

0.768

type

hyperbolic

Wells (3)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
5PIONEER NATURAL RES. USA, INC.111,6002014-09-29
2PIONEER NATURAL RES. USA, INC.211,6002013-04-09
1PARKER & PARSLEY PETROLEUM CO.19,5501988-07-28
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