Readers will be familiar with the issue of shale gas - its potential to change the world energy market and the controversies surrounding its development. But you might be less familiar with tight oil – oil from shale rock which can also be extracted by hydraulic fracturing. That is the next story and its development particularly in the UK will be every bit as controversial. Even the publication of the initial basic survey of the resources in place is being held up by political nervousness. Read more
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