AFP: Shale resources add 47% to global gas reserves: US EIA
Shale-based resources increase the world's total potential oil reserves by 11 percent and natural gas by 47 percent, according to a US report released Monday.
In an initial assessment of shale oil resources and an update of shale gas reserves, the US Energy Information Agency said shale deposits could add 345 billion barrels of oil to global reserves, increasing the total to 3,357 billion barrels.
Shale gas adds 7,299 trillion cubic feet of natural gas, or 32 percent of the world total, the EIA report estimated.
The report seeks to quantify the potential global significance of the shale boom, after the exploitation of North American shale deposits transformed the US oil and gas industry.