Oil prices edged lower on Friday due to demand fears amid a standoff in Sino-U.S. trade talks, but both benchmarks ended the week higher on rising concerns over supply disruptions in Middle East shipments due to U.S.-Iran political tensions.  Iran said on Friday it could “easily” hit U.S. warships in the Gulf, the latest in days of sabre-rattling between Washington and Tehran, while its top diplomat worked to counter U.S. sanctions and salvage a nuclear deal denounced by President Donald Trump. U.S. sanctions on Iran have already cut the OPEC member’s crude exports further in May, adding to supply curbs implemented through an OPEC-led pact for the first six months of the […]