I believe it's more to bankrupt Alberta's oil sands. US shale is barely a competitor on a global scale.
The totals for just crude, not including petroleum liquids, for 2018 are:
US : 16.8 Mb/d
Saudi Arabia: 12.4 Mb/d
Russia: 11.4 Mb/d
[1]https://www.eia.gov/international/data/world/petroleum-and-o...
Are the commenters who replied wrong? If so, can you explain why?