KONTAN.CO.ID - LONDON. Oil prices extended gains on Monday, boosted by mounting concerns over gas supply from Russia and a lower dollar, offsetting demand fears brought on by a possible recession and China lockdowns.

Brent crude futures for September settlement rose by $4.44, or 4.4%, to $105.60 a barrel by 1427 GMT, having gained 2.1% on Friday.

U.S. West Texas Intermediate (WTI) crude futures for August delivery were up $4.10, or 4.2%, at $101.69 after rising by 1.9% in the previous session.