Kazakhstan plans to more than double its crude oil refining capacity by 2040 from current levels by expanding existing capacities and building a major new refinery, the country's Energy Ministry said on Wednesday, citing the government's 2025-2040 plan to boost fuel output. Kazakhstan, a major crude oil producer and member of the OPEC+ pact, currently has 18 million tons of annual oil refining capacity. It plans to boost this to 29 million tons per year by 2040 through expansion of operating refineries. Another 10 million tons per year would come…