At The End Of The Earth: The Longest, Deepest Oil Wells In The World
• http://www.popsci.com/On Sakhalin Island, in Russia’s far east, temperatures can fall to 35 degrees below zero. Many islanders herd reindeer. And in January, oil crews drilled the world’s longest and deepest extended-reach well, 7.7 miles down into the ground and 7.1 mile