HOUSTON: The United States has become the world's largest oil exporter, upending a decades-old order long dominated by Saudi Arabia and Russia, a shift that tightens American companies' grip on energy markets as Washington's war with Iran reshapes global energy trade.
America's ascendancy to the top spot marks a stunning reversal for a country that was dependent on West Asian oil for decades and suffered from an oil embargo imposed by some OPEC members in 1973 to retaliate against US support for Israel.