A small oil well on the world heritage coast in Dorset is legally allowed to emit hundreds of tonnes of methane, a powerful greenhouse gas, annually direct into the atmosphere.
The short answer is not many companies sank wells anywhere onshore in 2015. The number of oil and gas wells drilled in the UK in 2015 was the lowest for almost 40 years.
The latest government information shows five onshore oil and gas wells were completed in the UK in first half of 2015. This is two fewer than for the same time last year and four down on 2013.
DRILL OR DROP? 