Power and gas grid operator National Grid is heading the gainers after OfGem published details of its new price review regime which the regulator said will provide strong incentives and penalties to encourage smarter, more sustainable networks. The price controls for Britain's gas and electricity transmission and gas distribution networks will run for eight years from 2013 until 2021. To encourage greater innovation, Ofgem will set up a £400m fund for the transmission and gas distribution companies.A decline in the oil price after the ceasefire in Libya has boosted the prospects for TUI Travel. Vodafone is lower even though non-exec Luc Vandevelde spent more than £20,000 on buying shares at 170.03p each. GlaxoSmithKline is lower after being suggested as a possible bidder for Actelion. FTSE 100 - Risers National Grid (NG.) 571.50p +3.44%TUI Travel (TT.) 231.90p +3.30%GKN (GKN) 195.10p +3.12%Johnson Matthey (JMAT) 1,852.00p +3.00%BAE Systems (BA.) 316.20p +2.96%Centrica (CNA) 327.70p +2.92%Aggreko (AGK) 1,519.00p +2.91%Invensys (ISYS) 338.00p +2.89%Prudential (PRU) 709.00p +2.75%Scottish & Southern Energy (SSE) 1,238.00p +2.74%FTSE 100 - Fallers ARM Holdings (ARM) 515.50p -3.37%Standard Life (SL.) 202.10p -1.13%BG Group (BG.) 1,505.00p -0.99%Vodafone Group (VOD) 170.15p -0.76%Admiral Group (ADM) 1,576.00p -0.76%GlaxoSmithKline (GSK) 1,149.00p -0.69%Compass Group (CPG) 536.50p -0.56%Barclays (BARC) 281.95p -0.56%Wolseley (WOS) 2,067.00p -0.48%Marks & Spencer Group (MKS) 333.90p -0.36%