Oil prices edged up on Monday as Saudi crude production took a surprising dip in July and American shale drilling seemed to plateau.  Markets also anticipated an announcement from Washington due later on Monday detailing renewed U.S. sanctions against major oil exporter Iran. Spot Brent crude oil futures LCOc1 were trading at $73.26 per barrel at 0101 GMT on Monday, up 5 cents from their last close. U.S. West Texas Intermediate (WTI) crude futures CLc1 were up 12 cents, or 0.2 percent, at $68.61 barrel. U.S. energy companies last week cut oil rigs for a second time in the past three weeks as the rate of growth has slowed over the past couple of months. Drillers cut two oil rigs in the week to Aug. 3, bringing […]