KEY POINTS:
Oil went below US$58 a barrel yesterday on worries about a wobbly US economy, with Opec's widely expected decision to keep oil output curbs having little impact.
US light crude for April delivery weakened US31c to US$57.24 a barrel.
"There's a big cloud in the sky. The question mark is about the US economy and concerns over the housing industry," said Andrew Harrington at ANZ Bank.
