U.S. markets soared in midday trading Tuesday with the Dow Jones Industrial up triple digits. Rising oil prices and positive developments from Greece on its debt talks are boosting investor confidence. Stocks drifted from session highs on factory orders for December falling 3.4%, more than the 2.4% fall expected. The report comes a day after a surprise dip in the January ISM Index. Positive auto sales rolled into Wall Street with American carmakers General Motors (GM) and Ford (F) both reporting their best January in years. Some RadioShack (RSH) stores may have hope from disappearing entirely after the stock was delisted from the New York Stock Exchange (ICE) Monday. Bloomberg is reporting Amazon (AMZN) could be interested in buying some of the retailer's locations.