Based on these 2015 BBC figures the world economy will be in big trouble if low oil prices continue.
Needed to balance budget:
price/barrel
$184 Libya
$131 Iran
$131 Algeria
$123 Nigeria
$118 Venezuela
$105 Russia
$104 Saudi Arabia
$101 Irac
$81 UAE
$78 Kuwait
$77 Qatar
Needed to balance budget:
price/barrel
$184 Libya
$131 Iran
$131 Algeria
$123 Nigeria
$118 Venezuela
$105 Russia
$104 Saudi Arabia
$101 Irac
$81 UAE
$78 Kuwait
$77 Qatar