Forgive my ignorance to Petroleum Engineering.
What oil(forgetting transportation cost to refinery and the danger to life and limb of getting it from its source)is worth the most?
light sweet crude
Is Quaker State, ie Penn St crude oil still the best?
Where does Canadian shale oil fit on this graph?
Please define US- mars, US-LLS, US-WTI. Keep in mind I am a lumber trader and just barely passed inorganic chemistry.
