HALFF-HALL 1S

Oil · District 7C · Lease #20483

Operator: PIONEER NATURAL RES. USA, INC.

Cum Oil

485k BBL

Cum Gas

1.8M MCF

casinghead

Wells

1

Production

2019-06 — 2026-04

Peak Month

2020-12

Production History

Cum Oil: 484,805 BBL Cum Gas: 1,814,709 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

10,073 BBL/mo

Di (annual)

29.0%

b-factor

0.0

EUR

416,231 BBL

R-squared

0.447

type

exponential

Operator History (from monthly production reports)

2019-06 — 2026-07 PIONEER NATURAL RES. USA, INC. 86 mo

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
19HPIONEER NATURAL RES. USA, INC.110,2002018-09-12