O BRIEN -A-

Oil · District 10 · Lease #6268

Operator: PIONEER NATURAL RES. USA, INC.

Cum Oil

280k BBL

Cum Gas

0 MCF

Wells

8

Production

1993-01 — 2026-03

Peak Month

1995-04

Production History

Cum Oil: 279,775 BBL Cum Gas: 0 MCF

Decline Curve Analysis

qi

2,238 BBL/mo

Di (annual)

10.1%

b-factor

0.0

EUR

263,687 BBL

R-squared

0.314

type

exponential

Wells (8)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
9DPIONEER NATURAL RES. USA, INC.15,3002015-01-14
8PIONEER NATURAL RES. USA, INC.19,2502003-03-31
7MIDPAR L.P.19,4501995-01-13
6MIDPAR L.P.19,3001994-08-03
5MIDPAR L.P.19,3001994-03-22
242-329-00051--------
342-329-00050--------
442-329-10392--------
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