State Treasurer Ken Miller says Oklahoma's economy is expanding and he calls it remarkable. Miller says June collections are up more than 15 percent compared to a year go. Miller says the revenue report for June shows gross collections topped one billion dollars, or 134 million dollars more than June of 2010. Miller says concerns which threaten Oklahoma economic momentum include Washington's failure to deal the the nation's debt crisis, the European Union's financila problems with Greece, and ongoing unrest in the Mid East.