Suncor has felt the pain of both low oil prices and freak natural disasters. Regardless, its debt-to-capitalization remains within its target range and it has considerable flexibility with its cash and credit lines. Suncor has achieved this by lowering production costs and finding ways to pay off debt, such as share issuances. Don't expect oil sands cash flows to dramatically increase in the second half, but operational costs should remain low and the company could make further transactions to work off debt and build cash.