DUNKIN UNIT

Oil · District 08 · Lease #55236

Operator: CALLON PETROLEUM OPERATING CO

Cum Oil

1.7M BBL

Cum Gas

3.5M MCF

casinghead

Wells

9

Production

2020-06 — 2026-04

Peak Month

2023-01

Production History

Cum Oil: 1,662,181 BBL Cum Gas: 3,499,299 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

118,595 BBL/mo

Di (annual)

245.5%

b-factor

0.6

EUR

1,369,545 BBL

R-squared

0.984

type

hyperbolic

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 (9)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
5AHAPACHE CORPORATION18,9002022-04-29
13SHAPACHE CORPORATION18,9002022-04-04
14SHAPACHE CORPORATION18,9002022-04-04
19HAPACHE CORPORATION18,9002022-04-04
20HAPACHE CORPORATION18,9002022-04-04
6AHAPACHE CORPORATION18,9002022-04-04
7AHAPACHE CORPORATION18,9002022-04-04
15SHAPACHE CORPORATION28,9502019-12-06
21HAPACHE CORPORATION28,9502019-12-06