US crude prices fell below 30 US dollars a barrel for the first time in 12 years yesterday as OPEC member Nigeria called for an emergency meeting to address collapsing prices. New York's benchmark West Texas Intermediate (WTI) for February delivery fell to 29.93 dollars a barrel, a level last seen in December 2003. Prices pulled back slightly at the end of trade to end 97 cents lower at 30.44 dollars a barrel.In London, prices plunged as well, with the benchmark Brent North Sea crude for February ending down 69 cents at 30.86 dollars a barrel. The continued plunge in prices, with some analysts now seeing a 20 US dollars price in sight, spurred more turmoil in exporters, many feeling a deep squeeze on revenues from the collapse of the market.