SHACKELFORD 3-38B

Oil · District 08 · Lease #58165

Operator: PIONEER NATURAL RES. USA, INC.

Cum Oil

371k BBL

Cum Gas

1.3M MCF

casinghead

Wells

1

Production

2022-10 — 2026-04

Peak Month

2022-11

Production History

Cum Oil: 371,458 BBL Cum Gas: 1,254,196 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

35,495 BBL/mo

Di (annual)

437.4%

b-factor

1.3

EUR

873,043 BBL

R-squared

0.993

type

hyperbolic

Operator History (from monthly production reports)

2022-10 — 2026-07 PIONEER NATURAL RES. USA, INC. 46 mo

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
2HPIONEER NATURAL RES. USA, INC.110,6102022-03-31