Business and finance news from the Asia-Pacific.

Oil prices rose and Asian stocks were little changed as investors assessed the implications of renewed geopolitical tensions for energy supplies and risk assets. The moves came after US benchmarks fell on Tuesday, with a gauge of chip stocks dropping more than 4%. The Nasdaq 100 slid 1.8%. For more on the market action, we spoke to Paul Dobson, Bloomberg's Executive Editor for Asia Markets.

Plus - The US launched airstrikes in Iran and revoked a waiver that allowed it to sell oil globally, further imperiling a peace agreement after a series of attacks on ships in the Strait of Hormuz. The US Treasury Department announced it was barring new sales of Iranian oil after July 7, a key incentive intended to get Tehran to abide by a deal that calls for reopening the strait. The American actions marked the most serious threat yet to the interim agreement signed between the two countries' leaders on June 17, and threatened to scuttle negotiations aimed at achieving a permanent peace. Bloomberg TV host Paul Allen spoke to Jessica Genauer, Public Policy Institute Academic Director and Associate Professor in International Relations at the University of New South Wales (UNSW).