Article from the Wall St Journal about oil supplies unaccounted for.
The article reports that the amount of oil unaccounted for hit its highest level in 17 years in 2015.
Last year, there were almost 800,000 barrels of oil a day unaccounted for by the International Energy Agency and WSJ point out that oil data is "an imperfect science".
Where these barrels ended up or even whether they existed to begin with is key to an oil market where supply is outstripping demand by far. I'm sure you'll have your own theories out there.
Full (gated) article here.
