16:10 GMT - The pullback from 91.00 has all but reached 90.50. Prices are currently balanced above here, but negative intraday studies suggest risk of further slippage towards the 90.10 Fibonacci retracement, where improving daily stochastics and the flattening Tension Indicator could prompt fresh consolidation. Following corrective trade, rising weekly charts point to fresh gains, but a close above 91.00 is needed to prompt a cautious upgrade and open up the 91.32 retracement. Critical resistance, however, remains at the 91.60 weekly high of 5 February. A close above here is needed to confirm continuation of January gains and open up 91.98/00.