Secondary and smaller ports across the U.S. are processing less trade as shippers readjust supply chains against the latest tariff deadlines. Ports of Oakland, Jacksonville, New Orleans, and Panama City, Florida, are among those "getting sandwiched out of port calls as more shippers decide to unload their freight in the larger ports," said Paul Brashier, vice president of global supply chain at ITS Logistics. "This is not a seasonal dip, but a market recalibration," said a top official at Port of Oakland.

What a difference a week can make. Oil prices surged to their highest level in over three years last week, and strategists were marveling that prices had shot up so quickly. Now prices are slumping. US crude oil futures have dropped by nearly 10% to trade around $66.50 per barrel, down from about $73 last week. Global benchmark Brent crude oil has dropped by about 6% to trade around $76, after peaking above $80. The sharp price decline was triggered on Friday by Saudi Arabia, the biggest oil exporter in the world and de facto leader of oil cartel OPEC. Click Read More below for additional information.

Futures advanced 0.9 percent in New York. American crude inventories tumbled by 6.5 million barrels last week, more than double the average estimate in a Bloomberg survey. Exports surged by the most on record as domestic explorers sent cargoes to foreign shores where they fetched higher prices. “Crude inventories are just taking a nose-dive,” Matt Sallee, who helps manage $16 billion in oil-related assets at Tortoise Capital Advisors LLC, said by telephone. The price gap that’s making American oil more attractive to overseas buyers is “supporting pretty robust exports.” Yet, gasoline stockpiles rose for a sixth week and diesel supplies unexpectedly edged higher. Click Read More below for additional information.