SHACKELFORD 39A

Oil · District 08 · Lease #56489

Operator: PIONEER NATURAL RES. USA, INC.

Cum Oil

420k BBL

Cum Gas

2.3M MCF

casinghead

Wells

1

Production

2021-08 — 2026-04

Peak Month

2023-05

Production History

Cum Oil: 419,681 BBL Cum Gas: 2,305,203 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

29,052 BBL/mo

Di (annual)

102.1%

b-factor

0.2

EUR

427,038 BBL

R-squared

0.851

type

hyperbolic

Operator History (from monthly production reports)

2021-08 — 2026-07 PIONEER NATURAL RES. USA, INC. 60 mo

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
1HPIONEER NATURAL RES. USA, INC.110,5912021-03-19