(Reuters) – Russia is working on a plan to construct oil storage facilities and new exporting outlets, which would help it offset sanctions that have hampered its oil sales, officials said on Tuesday. Russia has struggled with sales of its crude oil and oil products as sanctions over Ukraine have complicated financing of trade deals and hire vessels, while the United States introduced its ban on oil imports from Russia last month. The restrictions have led to Russian oil production and exports decline. Russia does not have large oil storage, which would allow it for more flexibility in product…