Essential Utilities up after American Water to buy co in all-stock deal

Shares of Essential Utilities WTRG.N up 1.9% to about $42 in premarket trading

American Water Works AWK.N shares down 1.2%

American Water Works AWK.N to buy WTRG in an all-stock deal valued at over $12 billion, according to Reuters calculations

AWK shareholders will own 69% and WTRG shareholders will own 31% of the combined co

Combined co to be valued at about $63 bln, including debt

YTD, WTRG up 13.5%, AWK up 13.7%