(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 ) .
What is the relationship between 'Marathon Oil' and 'Petroleum' in the context of the input sentence.
Options: product/material produced, original broadcaster, position held, business division