One or two points of fact.
There are currently four deep coal mines in Yorkshire. (And, to put that into context and out of interest, there are records in the Coal Authority's archives of around 100,000 recorded shafts in Yorkshire - and an estimate of perhaps as many again that are unrecorded).
Maltby colliery is still producing but under notice of closure. (Owned Maltby Colliery company = Hargreaves).
Hatfield Colliery is still producing (Owned Hargreaves)
Harworth Colliery is under "care and maintenance" and would likely cost a quarter of a Billion to re-open (Owned UK Coal)
Kellingley Colliery is still producing (Owned UK Coal)
Elsewhere in the UK there are:-
Thoresby Colliery (Nottinghamshire) still producing (UK Coal)
Daw Mill Colliery (Warwickshire) under notice of closure (UK Coal)
Then there is Tower Colliery in South Wales, which has been converted to an opencast mine (joint venture with Hargreaves)
And a couple of small drift mines in Wales, Aberpergwm and Unity which are also under threat of closure:-
http://www.thisissouthwa...00931-detail/story.html
There are probably still a few 'one man and a pit pony' operations in the Pennines. And then there are opencast or surface mines. But although there are now a few more surface mines than when Prescott was in charge of Communities & Local Government and sat on every Planning Inspector's recommendation of approval, recently permission is only granted to small proposals, mostly less than a million tonnes.
So, as of today, there are still five reasonably big deep mines operating, but within a year I expect that to reduce to a couple. If we're lucky. Maybe less.
And, sorry to correct you, Derek but there are NO coal mines in the UK where underground gassification is being used, and the EA and CA have indicated that they won't give licences for any to start, unless proposals are for offshore. At Harworth and at the former Selby mines and a few others coal bed methane is being extracted and used to generate electricity.
That's it.
There is absolutely no prospect that I can see of anyone investing a groat in coal whilst ever the political morons are insisting that any new coal burn generation must have Carbon Capture & Storage fitted. "Technology" specifically designed to make coal uncompetitive and which has never been demonstrated at large scale. Ever. Anywhere.
And, as has been noted, in a very real sense, it was coal that made Britain Great.
The final straw has probably been the amount of coal from the US which has been purchased in long contracts by US generators, but which is now being exported to Europe because shale gas is now cheaper to burn and there are US export facilities for coal but none at present for gas.
Many reasons for the collapse of the UK industry. Management ineptitude amongst them. Apart from a brief period around the Millenium, price wasn't the problem and production costs at Selby, for example, were a third of German production costs. But there can be no doubt that the politicians of every party for the last 25 years are primarily responsible for this fiasco.
A heady blend of dogma, incompetence, greed and malice.