Oil producers in the Opec group of countries will make another attempt this week to reverse a slump in crude prices, according to Algeria's energy minister. Noureddine Bouterfa said there would be an informal gathering of Opec members on the sidelines of a energy conference in Algiers on Wednesday. An oil output cut or freeze would be on the agenda, he said on Sunday. "We will not come out of the meeting empty-handed," the minister added. Oil prices collapsed from peaks of more than $100 a barrel in mid-2014 to near 13-year lows below $30 in January. The price on Friday was $44.48 a barrel. That slump has been ... (full story)