There are no sectors in the red as of Thursday afternoon, as London attempts to regain recent losses almost a week after the earthquake in Japan sent markets across the globe reeling.The oil equipment, services and distribution sector is higher with Infrastrata and Wood Group among those making gains.AMEC - the international engineering and project management firm - is also wanted. Shares have taken a hit in the last week as the nuclear crisis in Japan provided some downward pressure. However, on Tuesday, Credit Suisse said that the group's nuclear exposure is limited, with current and future nuclear new build revenues accounting for just 2-3% of its earnings per share.Top performing sectors so far todayTechnology Hardware & Equipment 712.77 +3.18%Oil Equipment, Services & Distribution 23,852.83 +3.13%Industrial Metals & Mining 7,695.97 +3.02%Forestry & Paper 5,978.10 +2.78%Mobile Telecommunications 3,919.18 +2.78%Bottom performing sectors so far todayLeisure Goods null 0.00%Alternative Energy 3,260.86 +0.08%Financial Services 5,795.20 +0.19%Food Producers & Processors 4,802.54 +0.51%Tobacco 26,908.76 +0.56%