Comac's C919 is keeping Airbus and Boeing on their toes. A US-Europe trade war would open a lane for China, but the C919 relies on lots of US parts.

Chevron has started oil and gas production from a project in the U.S. Gulf of Mexico, the oil major said on Monday, bringing the company a step closer toward its goal of growing production from the ocean basin by 50% this year.

Two Boeing aircraft scheduled to be delivered to Chinese airlines were returned to the US from China amid worsening trade tensions between the two countries.