RE:RE:RE:???Perhaps a large position is exiting as you mention.
They did announce an NCIB for 29.2M shares recently so the lower trading price actually works in their favor as they can buy more shares/cancel while costing them less cash.
If you are long term holder, it will be bode well for the remaining shares.
If Oil price & refinery spreads hold up, the FCF should be there to execute the NCIB in full.