BRUSSELS, May 12 – The European Union on Monday added the names of 13 people and two Crimean firms to a list of those facing asset freezes and travel bans, measures Moscow has mocked as pointless, Reuters reported.

The new names include Russian President Vladimir Putin's first deputy chief of staff, Vyacheslav Volodin, but notably exclude bosses of big Russian companies.

Earlier U.S. lists have included the head of Russia's biggest oil company and the co-founder of a big oil trader, but not the firms themselves, which say operations are unaffected.