Caterpillar chairman and CEO Doug Oberhelman is retiring after more than 41 years with the company. This will become effective from March 31st, 2017. During his time as chairman and CEO, Oberhelman has boosted the company’s focus on serving customers while also driving a culture of quality and safety. Oberhelman led the company to its highest sales and revenue peak in its 91-year history in 2012, and, since that time, has successfully led the company through the unprecedented downturn affecting our key indu