rattler midstream lp rtlr announced monday a deal to be acquired by diamondback energy inc fang in an allstock deal that values rattler at about 220 billion under terms of the deal diamondback will provide 0113 of its shares for each rattler share outstanding that it doesnt already own based on fridays closing prices each share of rattler which is a midstream energy assets limited partnership formed by diamondback at about 1508 which represents a 17 premium rattlers stock was still inactive in premarket trading while diamondbacks stock was indicated down nearly 3 the energy landscape has transformed dramatically since rattler was taken public in 2019 and we believe this agreement to merge companies is in the best interests of both diamondback and rattler stakeholders said travis stice who is diamondbacks chief executive and a general partner of rattler this merger will allow both companies to benefit from the simplicity and scale of the combined entity going forward rattlers stock has rallied 129 year to date and diamondback shares have climbed 237 while the sp 500 spx has lost 156