DUNKIN UNIT A1

Oil · District 08 · Lease #55235

Operator: CALLON PETROLEUM OPERATING CO

Cum Oil

397k BBL

Cum Gas

619k MCF

casinghead

Wells

1

Production

2020-06 — 2026-04

Peak Month

2020-06

Production History

Cum Oil: 396,558 BBL Cum Gas: 619,068 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

13,087 BBL/mo

Di (annual)

51.0%

b-factor

0.0

EUR

307,924 BBL

R-squared

0.474

type

exponential

Operator History (from monthly production reports)

2024-08 — 2026-07 APACHE CORPORATION 24 mo
2020-06 — 2024-07 CALLON PETROLEUM OPERATING CO 50 mo

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
8AHAPACHE CORPORATION28,9502019-12-11