As MDN reported in early October, so-called “activist investors” Elliott Management and D.E. Shaw want Marathon Petroleum (parent of MPLX, otherwise known as MarkWest Energy) to split itself into three separate companies, and a couple of other large shareholders called for Marathon CEO Gary Heminger to be fired (see Major Investors Pressure Marathon Petroleum to Split into 3 Cos.). Heminger and board member Greg Goff politely but firmly told Elliott, Shaw, et al to, in essence, buzz off (see Marathon/MarkWest Tells Activist Investor Co. Will Not Split). Looks like someone has to eat their words.