U.S. oil just tumbled below $100 a barrel — What that says about recession fears and tight crude supplies

Concerns about a recession and a drop in energy demand led to a drop in U.S. benchmark West Texas Intermediate crude-oil prices below the $100 -a-barrel mark on Tuesday for the first time in months. That's contributed to talk of a potential "buying opportunity" for traders, even as some analysts expect further price declines.