The growing Gulf rivalry that’s pushing up oil prices

A bitter public rift between the United Arab Emirates and Saudi Arabia over oil production quotas this week caused talks between the world’s biggest oil-producing nations to be abandoned and left energy markets in limbo, pushing oil prices to a six-year high.

The 23 nations in Opec+, which comprises the Organization of the Petroleum Exporting Countries cartel and allied producers like Russia, had to postpone their negotiations indefinitely, raising fears about its stability of a group that has…