CME Group Inc stated that crude oil futures on the New York Mercantile Exchange activated the circuit breaker mechanism at the start of this week's trading, resulting in a two-minute delay to the market opening. In a declaration, CME Group Inc clarified that the dynamic circuit breaker for WTI crude oil futures was triggered when trading commenced at 5:00 PM Central Time on Sunday. Trading activities resumed at 5:02 PM Central Time on the same day.