BP to invst in Oman gas project. BP has signed a 30 year deal with Oman to invest $16B in the country's Khazzan tight gas project, which could produce up to 1B cubic feet per day of gas. BP expects to start construction next year, extract the first gas in 2017 and reach plateau output in 2018. The deal also enables BP to assess other gas resources in Oman block 61.