Originally posted by the Voice of America. Voice of America content is produced by the Voice of America, a United States federal government-sponsored entity, and is in the public domain. Saudis Seek Oil Supply Protection as US, Iran Face Off Reuters Saudi Arabia calledSaturdayfor swiftaction to secure Gulf energy supplies, after the United Statesblamed Iran for attacks on two oil tankers in a vital oilshipping route that have raised fears of broader confrontationin the region. Thursday's tanker attacks in the Gulf of Oman exacerbated the antagonistic fallout from similar blasts in May that crippled four vessels. Washington, already embroiled in a standoff with Iran over its nuclear program, has blamed Tehran. .