BRIEF-FirstEnergy Nuclear Operating Co says Beaver Valley Power Station unit 2 returned to service on May 21
* Says Beaver Valley Power Station Unit 2 in Shippingport, Pa., returned to service on Sunday, May 21
Jan 10 Red Robin Gourmet Burgers Inc
* Red Robin reports preliminary revenue results for the fiscal fourth quarter of 2016
* Q4 revenue $290.8 million versus I/B/E/S view $299.6 million
* Sees Q4 comparable restaurant revenue decrease of 4.5 pct Source text for Eikon: Further company coverage:
CHICAGO, May 22 CHS Inc, the biggest U.S. agricultural cooperative, named a new chief executive on Monday, after suffering a sharp decline in income and confirming it was a creditor of a failing Brazilian commodities trader.