Question: Kevin Gentry is a conservative political activist and fundraiser who serves as vice president of the Charles G. Koch Charitable Foundation, Gentry serves as vice president of special projects at Koch Industries, an American multinational corporation based in Wichita, Kansas, in which country?
Sentence (from "Koch Industries"): It was founded as Wood River Oil and Refining Company in 1940, and later as Rock Island Oil & Refining Company.
Relevant evidence: No