Prevania-Alfegos Airship Alliance

From Nova

A deal started in 1927 between Prevania and Alfegos, which guaranteed Alfegos a cheap supply of hundreds of airships, in exchange for masses of oil literally gushing out of the ground in Milkavich province.

As of 19/11/07, about 2137 airships have been traded in this deal, in exchange for nearly 67 million barrels of oil.