cakulev,
There are a couple of costs one would/will incur when storing physical crude.
1) Purchasing the crude,
2) Transportation through the pipeline(s) to your storage facilities,
3) Local, state and federal tariffs,
4) Storage leasing (you can use the lease as a tax deduction and reduce capital gains),
5) Insurance and,
6) Hedging.
There are other elements to storage, but those are the important ones to consider. There is also the element of transporting crude by sea, involving numerous steps. If you are really considering taking physical delivery and storing it, consult an energy attorney with in-depth knowledge of the markets, otherwise youâll be lost.