How much Dix mille livres 10000 in oman?

To convert 10,000 French livres (dix mille livres) to Omani rials, you would need to determine the historical exchange rate, as the livre is no longer in use. The livre was replaced by the franc in the late 18th century, and the Omani rial is a contemporary currency. If you provide a specific historical context or timeframe, I could assist you further with a more precise conversion or context.