SINCLAIR 57 H4

Oil · District 7C · Lease #22623

Operator: COG OPERATING LLC

Cum Oil

278k BBL

Cum Gas

565k MCF

casinghead

Wells

1

Production

2024-02 — 2026-04

Peak Month

2024-10

Production History

Cum Oil: 277,825 BBL Cum Gas: 564,677 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

36,922 BBL/mo

Di (annual)

218.3%

b-factor

0.3

EUR

290,317 BBL

R-squared

0.962

type

hyperbolic

Operator History (from monthly production reports)

2024-02 — 2026-07 COG OPERATING LLC 30 mo

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
603LHCOG OPERATING LLC212,0002023-10-30