The cost of natural gas in the United States has increased to a level not seen in 14 years.
It seems that the price of petrol is affected by more than just the figure shown at the pump.
The rising cost of natural gas in the United States might make heating a house more expensive than usual this season.
For September deliveries on Tuesday, the price of natural gas at the U.S.
The Henry Hub, finished at $9.19 per million British thermal unit, more than twice the closing price from a year ago.
This week's trade in U.S. natural gas futures has reached highs not seen since 2008.