Chevron vs. Exxon pairs play

These two companies move in step almost perfectly. This chart shows their historical movements:

The last couple of couple of days, they have begun to diverge:

A strong bet might be on the convergence of these two back to similar returns. Please note that these charts are percentage changes and not price so it is a little misleading.

I don't have nearly the capital to take advantage of this but someone probably could with the correct put on Chevron and call on Exxon.