Chemists in the oil and petroleum industry work with crude oil and the products derived from it.  They have a

Earth Scientists, Geoscientists, Geophysicists, Geologists study the earth, including its composition, structure and other physical aspects for oil discovery and

Gas Station -  also known as a filling station, fuelling station, garage, gasbar (Canada), gas station (United States and Canada),

Natural Gas -  is a fossil fuel formed when layers of buried plants and animals are exposed to intense heat

The midstream industry processes, stores, markets and transports crude oil, natural gas, and natural gas liquids (LNGs), and sulphur. Midstream