*Saudi Arabia has hiked all of its OSPs for June-loading cargoes, with those for heavier grades hiked the most, some to the highest level in well over 10 years.
 
*This comes as the end of ‘waivers’ on US sanctions on buying of Iranian crude is set to see exports slump from this month (see p13). Saudi Arabia has been a key backer of US president Trump’s hardball stance on Iran.
 
*Trump in turn has called on Saudi Arabia to produce more crude. Saudi Arabia has...