(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 ) .
Refer to the input text as context and select the correct relationship between 'Marathon Oil' and 'Petroleum' from the available options.
Options: original broadcaster, position held, product/material produced, business division