Russia and Cuba have discussed the idea of building an oil refinery in Cuba with the help of Russian companies, the deputy speaker of the Russian parliament was quoted as saying. During a visit of Russian lawmakers to Cuba in recent days, the idea of a refinery construction has been discussed, Russia’s TASS news agency quoted deputy speaker Alexander Babakov as saying. “The biggest Russian state companies could be working here,” the lawmaker said. “Cuba has crude oil: it is logical not to import oil products…