Just sit back and play things out. Barring a epic disaster were not going to lose money on this. I've been in since $30.38 per share, I added some on the last big pull back. I won't be selling this any time soon.
I have all 3 as well. I bought up more PSX after the split and kept all my of COP. Only spent about 4 grand on PSXP on the IPO. But the Conoco family of stocks has been rock solid, so I'll stay with all 3.
I bought COP 2 years ago. Added more after the split off.... selling it for that slop? Haha no thanks. I'm up 48% on my COP holdings and another 89% on my PSX split off. You can keep that garbage to yourself.