<span style="line-height: 20.8px;">All major benchmarks for thermal </span><a href="http://www.business-standard.com/search?type=news&q=Coal" style="line-height: 20.8px;" target="_blank">coal </a><span style="line-height: 20.8px;">- the world's second most important energy fuel after crude oil - have pushed back above $50 a tonne for the first time this year, driven by output cuts, supply disruptions and increased demand.</span><br style="line-height: 20.8px;" />