June 12, 2014 at 11:56 pm

Iraq violence threatens oil market

New York— The upheaval in Iraq could throw the world’s remarkably stable oil market out of balance, threatening a delicate equilibrium that has kept prices steady for much of the last four years.

Iraqi oil production is at risk because of the outbreak of violence involving militant groups.

For now, the fighting is mostly in Iraq’s north, away from important oil-producing regions in the south. But the turmoil sent the price of Brent crude, the key international benchmark, up 2.8 percent Thursday to $113.02, its biggest gain since August.

More important, it raised questions about Iraq’s ability to continue to rebuild its oil infrastructure and increase production to meet rising global demand.

Global oil markets have been unusually steady since mid-2011. Dramatic changes in oil production around the globe have offset each other instead of wreaking havoc. That has helped keep world oil prices high enough to provide OPEC countries with robust income, but not so high that they scare customers away from buying more oil.

“Everybody’s happy,” Secretary General Abdullah Al-Badry said Wednesday in Vienna after the Organization of Petroleum Exporting Countries’ semiannual meeting.

Brent has hovered in the range of $110 per barrel over much of the last four years, with only occasional volatility. That has also led to stable gasoline prices for U.S. drivers, who have been paying in the neighborhood of $3.50 per gallon.