Companies Phillips 66 American energy and logistics companyfounded 1 May 2012 Owned byBerkshire Hathawayfounded 1955TThe Vanguard Groupfounded 1 May 1975SState Street Investment Managementfounded 1978BlackRockfounded 1988OwnsConocofounded 1875, dissolved 2002 From Wikipedia and Wikidata (public domain), updated daily.