SHACKELFORD W39D

Oil · District 08 · Lease #52829

Operator: PIONEER NATURAL RES. USA, INC.

Cum Oil

592k BBL

Cum Gas

1.9M MCF

casinghead

Wells

1

Production

2019-10 — 2026-04

Peak Month

2021-10

Production History

Cum Oil: 591,501 BBL Cum Gas: 1,919,737 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

16,221 BBL/mo

Di (annual)

36.7%

b-factor

0.0

EUR

530,161 BBL

R-squared

0.662

type

exponential

Operator History (from monthly production reports)

2019-10 — 2026-07 PIONEER NATURAL RES. USA, INC. 82 mo

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
4HPIONEER NATURAL RES. USA, INC.110,6002019-02-11