Brent's five-month high tightens supply, lifts diesel costs, and puts a second straight Fed rate hike back on the table for next week.

The all-cash deal adds divesiran, a late-stage-ready rare-disease therapy, to Merck KGaA's pipeline and signals a new wave of RNA therapeutics M&A.

The 2015 arms embargo hasn't stopped Iran-backed Houthi attacks on Saudi Arabia. Here's why the threat keeps growing.

The strait of Hormuz is back at the center of a live conflict, with tanker fires and reprisal attacks threatening the world's key oil chokepoint.