Calgary Herald by Dan Healing.  Mullen Group slashed its employee head count by 1,000 — more than 13 per cent — in the first quarter to control costs in its oilfield services division as its producer customers deeply cut spending to deal with low commodity prices. The report from the trucking and oilfield services company Thursday sets the stage for what is expected to be a series of disappointing .... More Earlier this month, the Canadian Association of Petroleum Producers estimated its members had laid off 4,500 workers so far. The [...]