The Americans want the Europeans to import gas from their friends, the Arabs. Qatar recently invested so much money in to building LNG terminals, but their gas can't compete with the cheaper pipe-supplied Russian gas. So the Americans want to stop the supply of the Russian gas to Europe (and may be diverting it to China), and want to open up new markets for the Qatari and Saudi gas in Europe.
The plan to replace Russian oil and gas is more political spin that reality. The US shale gas boom is going bust - see GlobalResearch.org April 29, 2014, "Selling Hydraulic Fracking: The Myth of Energy Independence Used to Hoodwink the American People". The US did not have enough gas to supply itself this last winter. It does not have any surplus to export, nor the facilities to export gas in any quantity. LNG is available from other sources, but will require much investment in receiving facilities and pipelines, and will cost much more than Russian gas.As for oil, the price is artificially high as the result of sanctions against Iran, invasion of Iraq, and invasion and destruction of the government in Libya. This has benefited the US oil majors, but has restricted world supply. Note that Russia has just announced a deal to take Iran's oil in exchange for food and goods, and deals with China to sell oil and gas. China will finance the necessary pipelines. Russia has recently doubled its pipeline capacity to its Pacific coast ports, to sell to Asia and the Pacific Rim.
It is wise for Europe to diversify its potential suppliers, but any quick turn away from Russian oil and gas supplies is a pipe dream.
