Don - "..the most relevant question is perhaps 'how many barrels of liquids have to be produced in order to provide the gasoline, diesel..."
Fair enough question. And the answer is that according to the govt the gasoline yield from US refineries has been consistently between 45% and 47% for the last 24 years. If fact it reached the second highest level in 2016:
https://www.eia.gov/dnav/pet/hist/LeafH ... fryus3&f=aAnd the diesel yield has significantly increased over the last 24 years from around 23% to 28%. Here's the link to support that. It also shows the yields of the other products.
https://www.eia.gov/dnav/pet/hist/LeafH ... IRYUS3&f=AThere's a good reason the gasoline yields have been so consistent. It goes back to the fact that the refineries crack BLENDED OIL. Oil that is specifically composed to provide the yields the refineries desire. Did you catch my link showing how the gravity of oil refined has stayed constant around 32° API. That's why the yields are so consistent.
And that takes us full circle to my long lost above. The refineries can't get the yields they desire by just cracking 40°+ API light oil that dominates domestic production. And they also can't do it cracking the heavy oils that dominate our imports.
Great how the math works out, eh? Blend 1 million bbls of heavy oil with 1 million bbls of condensate/light oil and...SHAZAM!!! ...you get 2 million bbls of 32° API oil our refineries are designed to maximize.
Amazing how looking at the ACTUAL NUMBERS tends to discredit a lot of the WORDS you read here, isn't it?