Well-received updates from two big oil services companies have the sector gushing higher.Wood Group is still trading in line with forecasts and the provider of support services to the oil and gas industry expects to match full-year estimates, it said today.Sector peer Petrofac was also higher after the company bagged a lucrative contract in the United Arab Emirates (UAE).Shares in BT are weak, dragging the fixed line telecommunications sector lower.Top performing sectors so far todayIndustrial Engineering 6,225.07 +1.81%Industrial Metals & Mining 7,237.35 +1.80%Oil Equipment, Services & Distribution 21,830.46 +1.50%Electronic & Electrical Equipment 2,490.21 +1.32%Forestry & Paper 5,854.23 +1.30%Bottom performing sectors so far todayFixed Line Telecommunications 2,015.56 -1.18%Real Estate Investment & Services 1,497.38 -0.80%Food Producers & Processors 4,790.93 -0.49%Alternative Energy 3,248.88 -0.41%Household Goods & Home Construction 6,350.43 -0.35%