Reuters | Oil prices give up gains; set for weekly drop Reuters TOKYO (Reuters) - U.S. oil prices fell on Friday, taking declines to a fourth day as Asian share markets extended a sell-off on Wall Street after news of planned U.S. tariffs on steel and aluminum raised fears of a trade war. FILE PHOTO: An oil pump is ... Oil's Boom-and-Bust Cycle May Be Over. Here's Why Crude Oil's Next Move? Clues From Soybean Oil OPEC Oil Production Drops to 10-Month Low |