Michael H/DigitalVision via Getty Images Introduction The Q1 earnings season briefly interrupted my exploration of prominent companies in the North American midstream industry. Among the largest midstream companies by market cap, MPLX LP (NYSE:MPLX) offers the highest dividend yield. SA I do not have any illusions about share price growth potential of midstream names, but I want to diversify my portfolio with robust high yielding companies. MPLX currently offers an 8.46% forward dividend (distribution) yiel ...