RICHARDS "44"

Oil · District 10 · Lease #38633

Operator: PIONEER NATURAL RES. USA, INC.

Cum Oil

60k BBL

Cum Gas

0 MCF

Wells

2

Production

2007-09 — 2026-03

Peak Month

2007-12

Production History

Cum Oil: 59,777 BBL Cum Gas: 0 MCF

Decline Curve Analysis

qi

1,250 BBL/mo

Di (annual)

50.5%

b-factor

0.7

EUR

70,750 BBL

R-squared

0.857

type

hyperbolic

Wells (2)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
4PIONEER NATURAL RES. USA, INC.211,0002007-10-15
3PIONEER NATURAL RES. USA, INC.211,0002006-11-29
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