From the news today
http://www.elpais.com.uy/economia/noticias/uruguay-mantiene-energia-mas-cara.html
Seems electricity is $235 USD per megawatt hour here while it is only
$34 USD in Argentina.
Natural gas is also the most expensive here.
A litre of gasoline is $1.43US while in Argentina it is $0.23 USD
They also give comparisons with Brazil and Chile - all cheaper than here.