Sweden is the current source of the bulk of the best stoner rock going. The Swedish bands tend to a more involved and progressive style rather than simple ode-to-Sabbath fuzzery. One of the best of these is Truckfighters, who mix traditional heavy stoner rock with desert rock slickness and construct their songs with thought out tones from each instrument (even the vocals, often neglected by such bands) and wonderfully unique guitar harmonies.
See the Born Again Nihilist Youtube channel for a full playlist of 'You Should Be Listening To...' videos.
To keep up-to-date with Truckfighters: http://www.truckfighters.com/
Edward Gerard Brophy :)