SHACKELFORD 41L

Oil · District 08 · Lease #57553

Operator: PIONEER NATURAL RES. USA, INC.

Cum Oil

346k BBL

Cum Gas

1.2M MCF

casinghead

Wells

1

Production

2022-02 — 2026-04

Peak Month

2023-05

Production History

Cum Oil: 345,729 BBL Cum Gas: 1,194,618 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

21,265 BBL/mo

Di (annual)

238.0%

b-factor

0.6

EUR

252,961 BBL

R-squared

0.913

type

hyperbolic

Operator History (from monthly production reports)

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

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
12HPIONEER NATURAL RES. USA, INC.19,2502021-10-28