printer maker lexmark. shares jumped almost 6% as it's restarted its stock buyback program, putting some of its corporate cash to work. shares have had a tough time, getting hit back in october and then in april thanks to weak outlooks. the stock was able to pop a bit last month when lexmark reported stronger quarterly earnings. we mentioned oil earlier in the program, and here's a closer look. it's below $92 a barrel and is threatening to break below the june low around $90 per barrel. key number to watch. energy stocks saw the stiffest selling, led by these three. marathon fell more than 5%, down to its lowest price since splitting into two companies at the end of last month. driller helmerich payne dropped almost 3%. murphy oil shed more than 2% to a new low for the year. coca-cola was the standout among dow industrial stocks, up 2%. nice move higher. with all the talk this week of government debt, coke sold $2 billion worth of bonds to refinance other debt. several companies are selling i.o.u.s, taking