Crude oil prices today were set for their sharpest weekly rise since early June, when Israel launched a missile strike on Iran. This time, the jump was triggered by the news that Russia would introduce curbs on diesel exports, suggesting supply tightness. At the time of writing, Brent crude was trading at $69.59 per barrel and West Texas Intermediate was changing hands for $65.21 per barrel. Yesterday, Deputy Prime Minister Alexander Novak said an already operating ban on gasoline exports would be extended until the end of the year, and a ban on…