$14.12-$14.16 has been a general line of Support in August 2015, Resistance in December 2015, Support again in September through November 2016, Support in March and May 2017, and then acting as Resistance for a couple weeks in October 2017. Due to that activity I believe it possible for MRO to retrace to that area again; and because of that I have targeted that area as my sell point. I expect it to take no longer than three weeks to reach that area of Support.
If you draw lines of Support at $14.12/$14.16 and Resistance at $16.60ish I can see a channel/rolling pattern from August to November 2016 and briefly from March to April 2017. If MRO does hit my estimated Support I will wait a few days to see if once again it rises in price to repeat that pattern and becomes ripe for a "double dip," or the opportunity to enter a Bullish/Call play almost immediately after exiting a Bearish/Put play.