The US continues to be the world’s top producer of petroleum and natural gas hydrocarbons in 2015, according to US Energy Information Administration estimates.

In 2012, it first surpassed Russia in the production of petroleum and natural gas and has since then remained the top producer of natural gas worldwide, as well as the top producer of petroleum hydrocarbons since 2013.

The total production of petroleum and natural gas hydrocarbon is split almost evenly in the US and Russia. On the other hand, Saudi Arabia’s production leans heavily towards petroleum.

Production of petroleum comprises different kinds of liquid fuels, including crude oil and lease condensate, tight oil, extra-heavy oil, and bitumen.

"Biofuels and refinery processing made most of the remaining production volumes of petroleum and other liquids in the US."

In addition, various processes generate natural gas plant liquids (NGPL), biofuels, and refinery processing gain, among other possible liquid fuels.

Crude oil and lease condensate formed almost 60% of the total petroleum hydrocarbon production in 2015 in the US.

A further 20% of the production was natural gas plant liquids in the country.

Biofuels and refinery processing made most of the remaining production volumes of petroleum and other liquids in the US.

Production from tight oil and shale gas formations has contributed to increases in petroleum and natural gas production in the US over the last several years.