Oil tumbles 8% as China retaliates with tariffs on U.S
A pumpjack operates at the Vermilion Energy site in Trigueres, France, June 14, 2024. REUTERS/Benoit Tessier/File Photo© Thomson Reuters By Paul Carsten and Arunima Kumar LONDON (Reuters) -Oil prices plunged by 8% on Friday, heading for their lowest close since the middle of the pandemic in 2021, as China hit back in an escalating global trade…