RE:RE:CEO Leadership TransitionIt appears the board of directors decided it was time for a new CEO so they pushed him out.
This is suggested by the phrase in the announcement that the CEO has stepped down to "pursue other opportunities". I worked at senior levels in many well known organizations and every time an executive was let go, that "pursuing other opportunity" phrase appeared in the announcement.
As to potential reasons, it could be the CEO fell out of sync with the rest of the board or perhaps with the big plans Pembina has already announced for expansion, the board felt someone else would be better suited for the role.