Oberhelman was raised in Woodstock, Illinois, where his father was a John Deere salesman.

[8] Oberhelman attended Millikin University, where he was a member of Sigma Alpha Epsilon.

[2][9] He succeeded Jim Owens as CEO on July 1, 2010 and as Executive Chairman of the Board on November 1, 2010.

[12][13] In September 2009, he was elected to the Board of Directors of World Resources Institute.

of $16.9 million, a sixty percent increase from his earnings the previous year.