WINCHESTER A2

Oil · District 08 · Lease #54437

Operator: CALLON PETROLEUM OPERATING CO

Cum Oil

433k BBL

Cum Gas

866k MCF

casinghead

Wells

1

Production

2020-01 — 2026-02

Peak Month

2020-03

Production History

Cum Oil: 433,051 BBL Cum Gas: 865,570 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

24,975 BBL/mo

Di (annual)

69.8%

b-factor

0.0

EUR

429,581 BBL

R-squared

0.493

type

exponential

Operator History (from monthly production reports)

2024-08 — 2026-07 APACHE CORPORATION 24 mo
2020-01 — 2024-07 CALLON PETROLEUM OPERATING CO 55 mo

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
21UHAPACHE CORPORATION311,9002019-09-26