All companies featured: American Electric Power Company (NYSE:AEP), ConocoPhillips (NYSE:COP), Magellan Midstream Partners, L.P. (NYSE: MMP), Buckeye Partners LP (NYSE:BPL), Phillips 66 (NYSE:PSX), Andeavor (NYSE:ANDV), Phillips 66 Partners (NYSE:PSXP), DCP Midstream (NYSE:DCP), Buckeye Partners LP (NYSE:BPL), Marathon Petroleum (NYSE:MPC), Phillips 66 (NYSE:PSX)