The maritime colossus Maersk Group, which incorporates such subsidiaries as Maersk Oil, Maersk Drilling, Maersk Line, APM Terminals, and many other business units, has offered a real-time strategy computer game.
In contrast with most other strategies it is not only the real-time but also the real-world entertainment, as you have to follow all the long process of oil exploration before you start pumping it out to earn your first petrodollars.
The game is available for Windows and MacOS X, free to download at QuaestForOil.com.