On Wednesday, U.S. president Donald Trump crushed any hopes of a trade deal with China when he announced that China “broke the deal” and that, as a consequence, the U.S. will enforce even higher tariffs on some imports from China starting on Friday, May 10. When the world’s first and second largest economies are quarrelling, it goes without saying that it puts the entire global market on edge. The international oil market is no exception. According to MarketWatch, “Those concerns have more than offset the price-supportive…