09:56 AM EST - NuVista Energy Ltd. : has struck a $284-million stock-swap deal to acquire Rider Resources Ltd. (TSX:RRZ), helped by an $84-million investment from Ontario Teachers' Pension Plan. Rider shareholders will receive 0.354 of a NuVista common share, with a deemed value of $5.07, for each Rider share, Calgary-based NuVista said Monday. NuVista Energy Ltd.
shares T.NVA are trading off 32 cents at $14.01.
