KANSAS CITY, Mo. & NEW YORK–(BUSINESS WIRE)–Bats Global Markets, Inc. (Bats: BATS), the #1 U.S. market for exchange-traded fund (ETF) trading, today welcomed its 13th ProShares product to the Bats ETF Marketplace. The new issue is the ProShares K-1 Free Crude Oil Strategy ETF (Bats: OILK), which seeks to provide total return by providing exposure to the West Texas Intermediate crude oil futures market in an actively managed ETF. The fund’s strategy seeks to outperform certain index-based stra