NAIL -R-

Oil · District 10 · Lease #31623

Operator: PIONEER NATURAL RES. USA, INC.

Cum Oil

60k BBL

Cum Gas

0 MCF

Wells

2

Production

1993-01 — 2026-03

Peak Month

1994-05

Production History

Cum Oil: 59,573 BBL Cum Gas: 0 MCF

Decline Curve Analysis

qi

553 BBL/mo

Di (annual)

25.0%

b-factor

0.8

EUR

59,809 BBL

R-squared

0.671

type

hyperbolic

Wells (2)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
1PARKER & PARSLEY PETROLEUM CO.19,4501987-09-23
2PARKER & PARSLEY PETROLEUM CO.19,4501987-09-23
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