SALE RANCH 21I

Oil · District 08 · Lease #47509

Operator: PIONEER NATURAL RES. USA, INC.

Cum Oil

341k BBL

Cum Gas

1.1M MCF

casinghead

Wells

1

Production

2014-12 — 2026-04

Peak Month

2016-12

Production History

Cum Oil: 340,689 BBL Cum Gas: 1,086,035 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

27,231 BBL/mo

Di (annual)

293.0%

b-factor

0.9

EUR

467,943 BBL

R-squared

0.824

type

hyperbolic

Operator History (from monthly production reports)

2014-12 — 2026-07 PIONEER NATURAL RES. USA, INC. 140 mo

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
9HPIONEER NATURAL RES. USA, INC.110,6002014-10-03