AMACKER 85B

Oil · District 7C · Lease #21616

Operator: COG OPERATING LLC

Cum Oil

247k BBL

Cum Gas

1.6M MCF

casinghead

Wells

1

Production

2022-03 — 2026-04

Peak Month

2022-10

Production History

Cum Oil: 247,323 BBL Cum Gas: 1,565,440 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

27,549 BBL/mo

Di (annual)

564.6%

b-factor

1.2

EUR

481,640 BBL

R-squared

0.925

type

hyperbolic

Operator History (from monthly production reports)

2022-03 — 2026-07 COG OPERATING LLC 53 mo

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
8503BHCOG OPERATING LLC112,0002021-10-27