COUEY -A-

Oil · District 10 · Lease #23871

Operator: PIONEER NATURAL RES. USA, INC.

Cum Oil

120k BBL

Cum Gas

0 MCF

Wells

4

Production

1993-01 — 2026-03

Peak Month

2004-09

Production History

Cum Oil: 119,855 BBL Cum Gas: 0 MCF

Decline Curve Analysis

qi

539 BBL/mo

Di (annual)

9.3%

b-factor

0.0

EUR

69,085 BBL

R-squared

0.793

type

exponential

Wells (4)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
4PIONEER NATURAL RES. USA, INC.18,4002004-06-08
3BROWN, TOM INC.18,4501985-10-22
142-173-30306--------
242-173-30307--------
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