Germany is calling for the European Union to impose a full oil and gas embargo this week on Libyan leader Moammar Gadhafi's regime.
Foreign Minister Guido Westerwelle said Tuesday that no one knows how long fighting in Libya will last and it is important to make sure Gadhafi can't get his hands on fresh money.
Westerwelle says "it can't be that there is military action on one hand, but on the other hand, oil and gas business with the Gadhafi system still isn't ruled out."
He says this week's EU summit should send "a strong signal that the European Union no longer does business with Gadhafi."
Germany isn't participating in the operation to impose a no-fly zone over Libya and abstained in the U.N. resolution authorizing it.