Marathon Oil (MRO) Shares Cross Below 200 DMA By: Energy Stock Channel November 02, 2016 at 10:56 AM EDT In trading on Wednesday, shares of Marathon Oil Corp. (MRO) crossed below their 200 day moving average of $12.84, changing hands as low as $12.46 per share.. Read More >> Related Stocks: Marathon Oil Vaneck Unconventional Oil & Gas ETF