(DNR) $3.76 -7.39% Marathon Oil Corp. (MRO) $16.25 -7.04% Anadarko Petroleum Corp. (APC) $72.39 -5.55% Sandisk Corp (NasdaqGS: SNDK - news ) .
In the context of the input sentence, determine the relationship between 'Marathon Oil' and 'Petroleum'.
Options: original broadcaster, business division, product/material produced, position held