US GSIB exposure to oil &amp; gas loans is very limited... so if you are looking for blow ups.. prolly better to look elsewhere.. They will take more reserves but small % of $Trillion loan books. 

$BAC - 2.6% 
$C - 3.2% 
$JPM - 2.1% 
$WFC - 1.4% 
$USB - 1.1% 
$PNC - 1.1% 

$XLF