Exxon Mobil Corp. is suffering from sanctions on Russia. The same can’t be said for other big Western energy companies, or for Russia’s oil production.

The sanctions, put in place by the U.S. and European Union in 2014 after Russia’s annexation of the Crimea region of Ukraine, were meant to limit Russia’s pursuit of new technology for extracting more crude oil and natural gas. The measures specifically targeted deepwater drilling planned in the Black Sea, Arctic operations and the use of fracking technology in Siberia.

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