Featured Gas OilOil prices edge up after turbulent week as Saudi Arabia reassures on outputBy Shile GIWASeptember 20, 2019September 20, 2019 by By Shile GIWASeptember 20, 2019September 20, 20190598 Oil prices edged higher in Asian trade on Thursday after days of turbulence, with markets soothed by Saudi Arabia’s pledge to restore full production by