Family-owned and Minnesota-based Mills Fleet Farm has agreed to sell to New York-based KKR, one of the country’s largest investment concerns that has holdings in various industries totaling about $100 billion, the Minneapolis StarTribune reported. Terms of the deal, expected to be announced today, were not disclosed. However, after the Mills family put the privately held chain of 35 stores up for sale last fall there was speculation in the investment trade nationally that it would fetch in the neighborhood of $1 billion. Reuters last month cited unnamed sources putting a likely price tag at more than $1.2 billion, including debt. Mills Fleet Farm has stores in Ankeny and Mason City. The sale is expected to lead to more stores.