In particular I have noticed that NT still has false rollover dates for CL and GC.
GC: Octobre is an illiquid month and should not be part of the rollover schedule at all.
CL: It is too late to roll contracts to the new contract month on the last trading day. Due to physical constraints at Cushing, Oklahoma, the old contract sometimes shows extreme volatility during the last two days, so the volume shifts to the new contract earlier. Again have a look at the document below.

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