DUSEK 45 AND 4

Oil · District 7C · Lease #19419

Operator: PIONEER NATURAL RES. USA, INC.

Cum Oil

533k BBL

Cum Gas

1.5M MCF

casinghead

Wells

1

Production

2016-07 — 2026-04

Peak Month

2016-12

Production History

Cum Oil: 533,013 BBL Cum Gas: 1,510,057 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

6,631 BBL/mo

Di (annual)

15.8%

b-factor

0.0

EUR

503,865 BBL

R-squared

0.367

type

exponential

Operator History (from monthly production reports)

2021-02 — 2026-07 PIONEER NATURAL RES. USA, INC. 66 mo
2016-07 — 2021-01 PARSLEY ENERGY OPERATIONS, LLC 55 mo

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
2807HPIONEER NATURAL RES. USA, INC.29,2002016-02-26