PRESTON 9I

Oil · District 08 · Lease #57538

Operator: PIONEER NATURAL RES. USA, INC.

Cum Oil

431k BBL

Cum Gas

1.6M MCF

casinghead

Wells

1

Production

2022-02 — 2026-04

Peak Month

2023-03

Production History

Cum Oil: 431,370 BBL Cum Gas: 1,636,903 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

29,129 BBL/mo

Di (annual)

216.1%

b-factor

0.5

EUR

318,116 BBL

R-squared

0.935

type

hyperbolic

Operator History (from monthly production reports)

2022-02 — 2026-07 PIONEER NATURAL RES. USA, INC. 54 mo

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
109HPIONEER NATURAL RES. USA, INC.110,4992021-09-21