What are the visa & residency requirements in Oklahoma?

"To apply for a visa to Oklahoma, applicants must first submit an application to the United States Citizenship and Immigration Services (USCIS). The application must include proof of identity, proof of financial support, and a valid passport. Once the application is approved, applicants must attend an interview at the US Embassy or Consulate in their home country. During the interview, applicants must provide additional documents and answer questions about their background and purpose for visiting the United States. To apply for residency in Oklahoma, applicants must first obtain a valid visa. Once the visa is obtained, applicants must submit an application to the USCIS. The application must include proof of identity, proof of financial support, and a valid passport. Once the application is approved, applicants must attend an interview at the US Embassy or Consulate in their home country. During the interview, applicants must provide additional documents and answer questions about their background and purpose for living in the United States. After the interview, applicants must submit additional documents to the USCIS and wait for their residency status to be approved," commented one expat who made the move to Oklahoma.