KEY POINTS
  • Western sanctions imposed on Russia over its invasion of Ukraine have so far been carefully constructed to avoid directly hitting the country's energy exports.
  • The U.S. has said that sanctions on Russia's oil and gas flows are "certainly on the table," but that going after exports now could be counterproductive in terms of raising global energy prices.
  • "If Russia continues to wage this war ... it is only a matter of time before we're talking about full secondary sanctions on energy exports," Helima Croft, head of global commodities strategy at RBC, said.
A Surgutneftegas worker near pumpjacks in Surgut Region of the Khanty-Mansi Autonomous Area - Yugra, in the West Siberian petroleum basin.

It may only be a matter of time before the U.S. and Western allies impose full sanctions on Russia's energy exports, analysts say, warning that such a move would have seismic repercussions for oil and gas markets and the world economy.

It comes as Russia's onslaught on key Ukrainian cities enters its second week, with fighting raging in the north, east and south of the country.