Let's consider this as well...
Just for a second, let's assume this oil is the evolution of motor oil and is equal to a group II Dino oil for protection and longevity.
With that being said, let's also focus on what Shell, BP, and Exxon Mobil are in the business of, Crude oil.
These guys have oil rigs and derricks, NOT pastures of cows.
So, even if the Green oil was better for the earth, and since the big 3 don't own cows, do you still think they would formulate it? Nope, they want to sell Crude, not FAT! They have way too much money invested into crude drilling and pumping stations.