Dubai has announced that their Abu Dhabi December bail out has turned out to be half the size they expected -- $5 billion rather than the $10 billion previously thought.

Apparently $5 billion of the $10 billion was comprised of loans to Dubai that Abu Dhabi banks had already organized before the Dubai crisis. This communication error says a lot about the lack of proper interaction between the two city-states.

WSJ: Dubai, struggling under total debt estimated as high as $80 billion, announced in February that the U.A.E. federal government would buy bonds issued by Dubai valued at $10 billion. The proceeds would go to pay down debt and unpaid bills. Then, in late November, Dubai announced the two Abu Dhabi banks would subscribe to an additional $5 billion in bonds.

Hours later, however, Dubai shocked global investors by announcing that its corporate flagship, Dubai World, would request a debt standstill from lenders.

Markets are putting Dubai, and interestingly other nations, back on the sovereign debt crisis hot list:

Investors sold off Dubai-related bonds, suddenly worried that Abu Dhabi wasn't willing to step in and rescue its indebted neighbor. Investors also bid up the price of insuring against other highly indebted governments, from Greece to Russia. Even cash-rich governments in the region, such as Saudi Arabia and Abu Dhabi, saw the price of insuring against a default of their sovereign debt rise sharply, making it more difficult and expensive to borrow on international markets.