RBC's Helima Croft: This is the first major move by the White House to sanction a Russian exporter

Helima Croft, managing director and global head of commodity strategy at RBC Capital Markets, joins CNBC's 'Power Lunch' to ...

Citi's Francesco Martoccia: Here's what to make of falling oil prices

Francesco Martoccia, oil analyst on the commodities research team at Citi, joins CNBC's 'Power Lunch' to discuss outlooks on ...