Rattler Midstream Partners LP raised $665 million in the biggest energy initial public offering of the year, pricing an increased number of shares in the middle of its targeted range. The Midland, Texas-based pipeline company sold 38 million shares at $17.50 each, according to a statement Wednesday. The company had marketed 33 million shares for $16 to $19 apiece. Rattler was formed by Diamondback Energy Inc. to own, operate and acquire midstream assets in parts of the Permian Basin. Diamondback will retain about 76% of the voting rights in the company through Class B shares, according to the filing. As of March 31, Diamondback had transferred to Rattler 781 miles of pipeline across the Midland and Delaware basins with a capacity of about 232,000 barrels a day for crude, plus […]