Telegraph.co.uk | Oil price drop triggers wave of profit warnings Telegraph.co.uk Rolls-Royce, the FTSE 100 engineer, said in February that the near-halving in oil prices had created "increased uncertainty for many of our markets and customers", while oil rig maker Lamprell warned in January that the plunge would make it difficult ... Low oil prices lead to highest number of first-quarter profit warnings since 2009 |