BlackRock MuniAssets Fund, Inc. is a closed ended fixed income mutual fund launched by BlackRock, Inc. It is managed by BlackRock Advisors, LLC. The fund invests in fixed income markets. It seeks to provide current income exempt from federal income taxes by investing primarily in a portfolio of medium-to-lower grade or unrated municipal obligations the interest on which is exempt from federal income taxes. The fund was formerly known as MuniAssets Fund, Inc. BlackRock MuniAssets Fund, Inc. was formed on June 25, 1993 and is domiciled in United States.