Figure 1 - Fueling Global Energy Finance: The Emergence of China in Global Energy Investment
Supply chain of the energy sector (fossil fuel) shows the North American Industry Classification System (NAICS) codes along the various segments of the energy supply chain in upstream, midstream, and downstream industries. The upstream oil and gas industries include exploration, extraction, and production. The midstream industries involve the transportation and storage. The downstream industries incorporate petroleum crude oil refining as well as the marketing.