Oil was slightly firmer in Asian trade on Tuesday, lifted in part by Wall Street's overnight gains, analysts said. Prices were also boosted by geopolitical tensions in the Middle East after major crude producer Iran test fired missiles capable of reaching targets in Israel on Monday, analysts said.New York's main contract, light sweet crude for November delivery was two cents up at USD 66.86 a barrel. Brent North Sea crude for November delivery was five cents higher at USD 65.59 a barrel. "The gains on US equity markets aided oil market sentiment," analysts from the Commonwealth Bank of Australia said in a report. "Recent news reports of Iran test firing missiles added to concerns of geo-political risks, which was slightlysupportive of the oil price," they said.Iran, the world's third biggest crude exporter, test fired missiles it says can reach targets inside Israel and immediately drew swift condemnation from the United States and other Western nations. Washington said the missile tests were "provocative" and urged the Islamic republic to agree to "unfettered access" to its newly revealed enrichment plant.Washington and regional ally Israel have not ruled out a military option to stop Tehran's nuclear drive, which the West says is aimed at making nuclear weapons while Iran says it is solely for peaceful ends.