Mealey's (March 8, 2019, 10:50 AM EST) -- ST. LOUIS — UnitedHealth Group Inc. on March 5 filed a petition for a stay of mandate in the Eighth Circuit U.S. Court of Appeals, arguing that a stay of the court’s offsetting decision is warranted to allow it to file a petition for writ of certiorari in the U.S. Supreme Court because there is a reasonable probability that the high court will grant certiorari, the petition will raise a substantial question regarding the practice of cross-plan offsetting and United will suffer irreparable harm if a stay is not granted (Louis J. Peterson D.C., et al. v. UnitedHealth Group Inc., et al., No. 17-1744, 8th Cir.)....