By MarketsFarm WINNIPEG, May 15 (MarketsFarm) – The Canadian dollar was firmer Monday morning, finding some support from gains in crude oil. At 8:48 a.m. CDT Monday morning the Canadian dollar was at US$0.7395 or US$1=C$1.3523, which compares with Friday’s close of US$0.7389 or US$1=C$1.3534. Canadian wholesale sales excluding petroleum were down by 0.1