Keystone Pipeline is canceled by Biden because of Berkshire Hathaway / Warren Buffet?

Biden's suspension of the Keystone XL pipeline caused a new conspiracy theory to go viral. In this conspiracy theory, it claims that the real "sponsor" behind the suspension of the pipeline is by the chairman and CEO of Berkshire Hathaway, none other than Warren Buffett.

Is there any truth and plausibility behind this conspiracy?

BNSF Railway Wikipedia: https://en.wikipedia.org/wiki/BNSF_Railway
Burlington Northern Santa Fe Wikipedia: https://en.wikipedia.org/wiki/Burlington_Northern_Santa_Fe,_LLC
BNSF Financial Information: http://www.bnsf.com/about-bnsf/financial-information/index.html
BNSF 2019 QF Financial Performance: http://www.bnsf.com/about-bnsf/financial-information/pdf/performance-update-4q-2019.pdf
TruthOrFiction Article on Bulington Rail Road: https://www.truthorfiction.com/burlington-rail-road/
EIA 2012 Article on Rail Deliveries of Oil and Petroleum: https://www.eia.gov/todayinenergy/detail.php?id=7270