Ukraine has significantly expanded its campaign against Russia’s oil infrastructure this year, targeting refineries that supply fuel for both civilian consumption and the Russian military.

Ukraine's July drone campaign hit Russian refineries and fuel depots, pushing gasoline output to 65% of seasonal demand and forcing Moscow to

The reported target is the Slavneft-Yanos oil refinery in Yaroslavl, over 700 kilometers (435 miles) from the Ukrainian border. It is one of Russia's five largest refineries, with…