Top 5 Industries in the World Heading into 2023

2. Oil / Gas

Total market cap of the industry (in billions): $3,619

Total invested capital in the industry (in billions): $2,712

Total revenue of the industry (in billions): $2,897

The oil and gas industry has the highest revenue globally of any industry, which shouldn’t come as a surprise considering that only China National Petroleum Corporation has revenues higher than $400 billion while other giant such as Exxon Mobil Corporation (NYSE:XOM) and BP p.l.c. (NYSE:BP) have revenues well in excess of $200 billion.