BROOK A-4D

Oil · District 7C · Lease #21522

Operator: PIONEER NATURAL RES. USA, INC.

Cum Oil

250k BBL

Cum Gas

678k MCF

casinghead

Wells

1

Production

2022-01 — 2026-04

Peak Month

2023-01

Production History

Cum Oil: 249,572 BBL Cum Gas: 677,942 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

12,511 BBL/mo

Di (annual)

92.0%

b-factor

0.5

EUR

312,944 BBL

R-squared

0.951

type

hyperbolic

Operator History (from monthly production reports)

2022-01 — 2026-07 PIONEER NATURAL RES. USA, INC. 55 mo

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
4HPIONEER NATURAL RES. USA, INC.110,2492021-03-01