SHACKELFORD 39B

Oil · District 08 · Lease #56518

Operator: PIONEER NATURAL RES. USA, INC.

Cum Oil

388k BBL

Cum Gas

1.0M MCF

casinghead

Wells

1

Production

2021-08 — 2026-04

Peak Month

2022-08

Production History

Cum Oil: 387,783 BBL Cum Gas: 1,046,371 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

34,333 BBL/mo

Di (annual)

329.5%

b-factor

0.5

EUR

247,839 BBL

R-squared

0.877

type

hyperbolic

Operator History (from monthly production reports)

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

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
2HPIONEER NATURAL RES. USA, INC.110,5912021-03-19