Which do you guys prefer in the energy sector Exxon or Shell U.S or UK stocks?

Lately the situation in Venezuela has been turbulent and energy stocks have been pretty volatile. I’ve noticed that the performance of Exxon (XOM) in the U.S. and Shell (SHEL) in the UK is starting to diverge I’m curious do you think this will affect the long-term trend or is it just a short-term sentiment thing? Also do you have a larger portion of your portfolio in U.S stocks or UK stocks? Just to clarify, this is not investment advice please do your own due diligence (DD) before making any investment decisions.