Midstream oil and gas industry

Midstream industry is the portion of the oil and natural gas industry that is responsible for the processing, storage, and transportation of products such as crude oil, natural gas, natural gas liquids, and sulfur.[1] Midstream industry is responsible for linking far-spread petroleum producing areas and population centers where consumers are located. Transmission pipeline companies are included in the midstream petroleum industry. In places like Canada, oil sands upgrading is a part of midstream industry.

Figure 1. Representation of upstream, midstream, and downstream industry.[2]

The different sectors included in midstream industry are:[3]

Environmental Impacts

There are several environmental impacts that can be connected to various midstream petroleum activities. The most apparent impacts are the ones associated with the transportation of goods. Since the midstream industry relies heavily on fossil fuels to transport oil and gas, there is an associated reduction in air quality and increase in greenhouse gas emissions. These greenhouse gas emissions include methane (the main component of natural gas) and carbon dioxide. There is also a higher risk of accidental leaks, spills, and explosions from pipelines, railroads, and ship tankers used to transport petroleum products that can harm the environment.[4] As well, the development of infrastructure necessary to make this possible disturbs wildlife habitats.

Interactive Graphs

For an interactive graph showing what pollutants arise from midstream oil industry click here. Note that on these graphs the midstream oil industry is actually called petroleum product transportation and distribution to remain consistent with what the data source provided. The values for emmisions can be compared emissions from downstream and upstream industry (they are actually quite small, comparatively). The pollutant being looked at is automatically set to sulfur oxides, but try changing the pollutant to nitrogen oxides, volatile organic compounds, or carbon monoxide!

For Further Reading


  1. PSAC. (June 11, 2015). Industry Overview [Online]. Available: http://www.psac.ca/business/industry-overview/
  2. Created internally by a member of the Energy Education team.
  3. Careers in Oil and Gas. (June 12, 2015). Midstream Petroleum Industry [Online]. Available: http://www.careersinoilandgas.com/build-your-career/about-the-industry/industry-overview/midstream-petroleum-industry.aspx#.VXrw389Viko
  4. Sustainability Accounting Standards Board. (June 12, 2015). Oil and Gas Midstream Research Brief [Online]. Available: http://www.sasb.org/wp-content/uploads/2014/06/NR0102_OG_Midstream_2014_06_24_Industry_Brief.pdf

Authors and Editors

Bethel Afework, Jordan Hanania, Kailyn Stenhouse, Jason Donev
Last updated: July 21, 2018
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