March 3 (Reuters) - Asian refining margins for 10 ppm gasoil jumped to $23.09 a barrel over Dubai crude during Asian trading hours on Thursday, their highest on record in Refinitiv Eikon data going back to 2014.

The refining profit margins, also known as cracks, for the benchmark gasoil grade in Singapore have gained 28% in the past two weeks, buoyed by tighter supplies. (Reporting by Koustav Samanta Editing by David Goodman )