LONDON (MarketWatch) -- European shares ticked higher on Tuesday, as oil producers such as Royal Dutch Shell (RDS .A 52.59, -2.44, -4.48%) , up 1.1%, took back a portion of the sharp losses made in the previous session. Of companies updating investors, supermarket group Tesco (UK:TSCO 361.90, +6.00, +1.69%) advanced 1% after it produced a 4.3% rise in U.K. comparable sales, which broadly met analyst forecasts. Overall the U.K. FTSE 100 index rose 0.5% to 4,350.03, the German DAX 30 index rose 0.4% to 4,909.83 and the French CAC-40 index climbed 0.4% to 3,232.97.