General   (General discussion, talk about anything.)

In the past decade, when they were closing collieries, I seem to recall some were said to have been mothballed.

Did they un-mothball and permanently cease them? I guess when they closed Kellingley in 2015, the case for less efficient operations would fall.

But, surely the only case for mothballing would be that some future glitch in energy markets could create a renewed need for them. Like what we now have, maybe.