Natural gas is primarily composed of which gas?

Natural gas is primarily composed of which gas?

• A. Propane
• B. Methane
• C. Ethane
• D. Butane

Answer: (B)

Natural gas is made up mostly of methane, the simplest hydrocarbon. Methane is the primary component of most natural gas streams, often constituting a large majority by volume. The heavier hydrocarbons listed—propane, ethane, and butane—do appear in natural gas but only in much smaller amounts and are typically separated out during processing to produce pure pipeline gas and separate natural gas liquids. So, the best answer is methane because it fundamentally dominates the composition of natural gas, while the others are present only as smaller fractions.

Natural gas is made up mostly of methane, the simplest hydrocarbon. Methane is the primary component of most natural gas streams, often constituting a large majority by volume. The heavier hydrocarbons listed—propane, ethane, and butane—do appear in natural gas but only in much smaller amounts and are typically separated out during processing to produce pure pipeline gas and separate natural gas liquids. So, the best answer is methane because it fundamentally dominates the composition of natural gas, while the others are present only as smaller fractions.