Energy expenditure in the US in 2015 was the lowest recorded in more than a decade.
Latest figures from the Energy Information Administration (EIA) reveal spending for delivered energy in 2015 totalled $1.127 trillion (£0.87tn) – a 20% fall from the year before and the lowest since 2004.
Around 45% of total US energy expenditure in 2015 was in the transportation sector and mainly included fuels used in vehicles, railways, aircraft and ships and barges.
It saw a 28% fall from the year before as a result of lower fuel prices as energy use in the sector increased by around 1%.
Declines in petroleum product prices accounted for almost all of the overall price fall, as petroleum-based fuels accounted for 97% of total usage in the transportation sector in 2015. California had the highest total energy spend, accounting for 11% during the same period.
By fuel type, Texas led all states in total fuel energy expenditure, with $75 billion (£58bn), while California spent the most on natural gas, at $10.7 billion (£8.2bn), Pennsylvania the most on coal at $800 million (£616m) and Georgia the most on wood and waste biomass at $600 million (£462m).
The US has officially notified the UN of its intention to leave the Paris climate change deal.