Oil edges up on tighter supply, but demand concerns check gains

Oil prices nudged higher on Monday on tighter supplies from major producers, but concerns that a record rise in global coronavirus cases could curb a recovery in fuel demand checked gains.

Brent crude rose 9 cents, or 0.2%, to $42.28 a barrel by 0009 GMT, while U.S. crude was at $39.76 a barrel, up 1 cent.

Both contracts rose about 9% last week and Brent crude futures flipped into backwardation, where oil for immediate delivery costs more than supply later, usually an indication of tightening supply.