low gas price incentive to switch from coalHere is a possible explanation for the falling price.
https://www.traderplanet.com/daily/Kevin-Klombies-Stocks/?pst_id=102212
Historical price ratios do not necessarily mean a quick reversion to them - gold and silver have been out of their "normal" ratios for quite some time as has gold and oil.
So as some of you are doing - I will average down - sell on runups (if any) and buy back lower and wait for the price to go up due to lack of supply as the more costlier producers will shut down.
A hot summer may bring higher prices before the next heating season.
Have a good weekend.