SHACKELFORD W31A

Oil · District 08 · Lease #54243

Operator: PIONEER NATURAL RES. USA, INC.

Cum Oil

298k BBL

Cum Gas

3.2M MCF

casinghead

Wells

1

Production

2020-02 — 2026-04

Peak Month

2021-12

Production History

Cum Oil: 298,404 BBL Cum Gas: 3,170,513 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

40,304 BBL/mo

Di (annual)

708.0%

b-factor

1.0

EUR

403,040 BBL

R-squared

0.942

type

hyperbolic

Operator History (from monthly production reports)

2020-02 — 2026-07 PIONEER NATURAL RES. USA, INC. 78 mo

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
1HPIONEER NATURAL RES. USA, INC.210,6602018-12-31