(April 30, 2019, 11:59 AM EDT) -- MADISON, Wis. — A divided Wisconsin Supreme Court on April 2 ruled that two members of a company in the hydraulic fracturing sand business can sue another member of the company for violating the company’s operating agreement related to a transaction in which he sold assets to a separate entity that he owned (Daniel Marx, et al. v. Richard L. Morris, et al., No. 2017AP146, Wis. Sup., 2019 Wisc. LEXIS 129)....