2013 Mayflower oil spill. (2019, 9/ 17). Retrieved from:  https://en.wikipedia.org/wiki/2013_Mayflower_oil_spill#Pegasus_Pipeline The 2013 Mayflower oil spill occurred on March 29, 2013, when the Pegasus Pipeline, owned by ExxonMobil and carrying Canadian Wabasca heavy [...]