Oil (Ocean) Parking Lot

And here we see how the ocean is used for a parking lot (in the ocean) for oil tankers anchored or barely moving.
GnShttp://www.zerohedge.com/news/2016-05-20/something-stunning-taking-place-coast-singapore

The red dots show ships either at anchor or barely moving, either oil tankers or cargo, which have made the Straits of Malacca, one of the world's most important shipping lanes which carries about a quarter of all seaborne oil primarily from the Persian Gulf headed to China, into a "bumper to bumper" parking lots of ships with tens of millions of barrels in combustible cargo. 

it is also the topic of the latest Reuters expose on the historic physical crude oil glut which continues to build behind the scenes, and which so far has proven totally immune to dissipation as a result of the sharp increase in oil prices over the past three months.