Only 4 countries host 76% of all pipelines in the world. They are the USA (62%), Russia (7%), China (4%), and Canada (3%). These percentages are calculated based on pipelines’ length .They are not calculated based on number of pipelines.
If you want to know more, please go here. This data was sourced from the book Transportation and the Belt and Road Initiative, in which more data as well as the original primary sources of the data are available.
