GIBSON UNIT A 28-21

Oil · District 08 · Lease #50974

Operator: CALLON PETROLEUM OPERATING CO

Cum Oil

771k BBL

Cum Gas

1.0M MCF

casinghead

Wells

2

Production

2018-08 — 2026-04

Peak Month

2018-09

Production History

Cum Oil: 770,527 BBL Cum Gas: 1,023,579 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

13,861 BBL/mo

Di (annual)

27.1%

b-factor

0.0

EUR

613,102 BBL

R-squared

0.360

type

exponential

Operator History (from monthly production reports)

2024-08 — 2026-07 APACHE CORPORATION 24 mo
2018-08 — 2024-07 CALLON PETROLEUM OPERATING CO 72 mo

Wells (2)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
7AHAPACHE CORPORATION18,5002018-04-17
8AHAPACHE CORPORATION38,5002018-02-09