BROOK B-12U

Oil · District 7C · Lease #20396

Operator: PIONEER NATURAL RES. USA, INC.

Cum Oil

814k BBL

Cum Gas

1.8M MCF

casinghead

Wells

1

Production

2019-05 — 2026-04

Peak Month

2019-06

Production History

Cum Oil: 813,840 BBL Cum Gas: 1,790,107 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

28,384 BBL/mo

Di (annual)

49.6%

b-factor

0.3

EUR

974,589 BBL

R-squared

0.937

type

hyperbolic

Operator History (from monthly production reports)

2019-05 — 2026-07 PIONEER NATURAL RES. USA, INC. 87 mo

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
21HPIONEER NATURAL RES. USA, INC.110,1702018-05-23