Here is some data: AmeriGas, regionServed, United States; United States, areaTotal, 9833516.63 (square kilometres); AmeriGas, industry, Energy industry; United States, capital, Washington, D.C.; AmeriGas, country, United States.

Write a sentence that describes this data
AmeriGas classified in the Energy Industry works and serves the United States whose capital is Washington, D.C. and has a total area of 9,833,516.63 square kilometers.