BROOK A-4A

Oil · District 7C · Lease #21515

Operator: PIONEER NATURAL RES. USA, INC.

Cum Oil

299k BBL

Cum Gas

909k MCF

casinghead

Wells

1

Production

2021-08 — 2026-04

Peak Month

2023-07

Production History

Cum Oil: 298,830 BBL Cum Gas: 908,724 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

12,049 BBL/mo

Di (annual)

61.8%

b-factor

0.6

EUR

504,085 BBL

R-squared

0.894

type

hyperbolic

Operator History (from monthly production reports)

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

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
1HPIONEER NATURAL RES. USA, INC.110,2492021-02-22