Proactive Investors UK | Centrica trims oil portfolio with Norwegian joint venture Financial Times Centrica, the owner of British Gas, is to combine its exploration and production business with Oslo-based Bayerngas Norge in the latest example of European utilities trimming their legacy oil and gas portfolios to concentrate on core services such as ... Centrica combines European oil and gas business with Bayerngas Norge amid takeover rumours Breaking: Centrica agrees to combine oil wing with Bayerngas Norge |