SHACKELFORD 33U

Oil · District 08 · Lease #52183

Operator: PIONEER NATURAL RES. USA, INC.

Cum Oil

478k BBL

Cum Gas

1.5M MCF

casinghead

Wells

1

Production

2019-04 — 2026-04

Peak Month

2019-05

Production History

Cum Oil: 477,609 BBL Cum Gas: 1,540,029 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

23,542 BBL/mo

Di (annual)

115.5%

b-factor

0.7

EUR

650,187 BBL

R-squared

0.958

type

hyperbolic

Operator History (from monthly production reports)

2019-04 — 2026-07 PIONEER NATURAL RES. USA, INC. 88 mo

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
21HPIONEER NATURAL RES. USA, INC.110,3502018-05-25