creed - "My explanation would be that the refineries are clogged with an over supply of poorer and poorer oil, but I can't prove that."
US refineries process blended oil. And the quality of that oil has remained constant for many years...around 31° API. US API gravity (Weighted Average) of crude oil input to refineries:
https://www.eia.gov/dnav/pet/hist/LeafH ... RAPUS2&f=MAnd don't let anyone confuse you with the fact that the blended oil processed by US refineries in recent years has been made from a lot of the increased condensate/light oil from the shale boom. Prior the blended oil required just as much light oil as it does now. The difference is that the light oils had to be imported.
Now let's address the "refineries are clogged" bullsh't. Check out the primary refinery out put: gasoline. Since Dec 2014 US refineries have gradually INCREASED their sales of gasoline. Look at the chart:
https://www.eia.gov/dnav/pet/hist/LeafH ... timus2&f=4Isn't that just the opposite of what you would expect if they were "clogged"? And check this out from:
http://marketrealist.com/2017/04/us-gas ... ight-week/US Gasoline Inventories Fell for the Seventh Straight Week
"US gasoline production fell by 513,000 bpd (barrels per day) to 9,515,000 bpd from March 24–31, 2017. Production fell 5.1% week-over-week and 1.1% year-over-year.
US gasoline imports rose by 86,000 bpd to 607,000 bpd during the same period. Gasoline demand fell by 279,000 bpd to 9,245,000 bpd."
So the refineries imported an EXTRA 22 million gallons of gasoline because they were choking to death on their own production?
But let's address the real stupidity behind this clogged propaganda. Old joke: what's the first thing you do when you discover you're digging yourself into a whole? You stop digging. US refineries are not obligated to buy oil: they only buy enough to satisfy the demand projections they make. And then only if the price is right. Why do you think they cut back of gasoline production and increased gasoline imports? Would you believe to make a better profit? Well, da! LOL.
There's seems to be a very silly view of how the refinery industry works. It always generates a positive revenue regardless of the price of oil and the volume on the market. And regardless of the quality of the crudes used to make the blended oils they refine. The refineries decide how much oil they buy and, most important, what they'll pay for that oil.
Not directed directly at you but in general: it's a tad frustrating to see folks repeat bullsh*t they read hear when there's seldom any DOCUMENTED evidence shown to support it. Just as I did above. Folks are certainly free to interpret the FACTS as the choose. But we need to be doing that from DOCUMENTED FACTS and not just based on what someone claims.