SHACKELFORD 41J

Oil · District 08 · Lease #57589

Operator: PIONEER NATURAL RES. USA, INC.

Cum Oil

279k BBL

Cum Gas

818k MCF

casinghead

Wells

1

Production

2022-02 — 2026-04

Peak Month

2023-02

Production History

Cum Oil: 279,241 BBL Cum Gas: 817,915 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

20,963 BBL/mo

Di (annual)

100.6%

b-factor

0.0

EUR

250,087 BBL

R-squared

0.907

type

exponential

Operator History (from monthly production reports)

2022-02 — 2026-07 PIONEER NATURAL RES. USA, INC. 54 mo

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
10HPIONEER NATURAL RES. USA, INC.19,2502021-10-28