.s . federal ( 2016 ) , canada ( 2014 ) , trinidad ( 2013 ) and china ( 2008 ) . eog's foreign subsidiaries' undistributed earnings are not considered to be permanently reinvested outside of the u.s . accordingly , eog may be required to accrue certain u.s . federal , state , and foreign deferred income taxes on these undistributed earnings as well as on any other outside basis differences related to its investments in these subsidiaries