Analyze the relationship between 'Pemex' and 'MEXICO CITY' within the context of the input sentence.
Options: distributed by, product/material produced, headquarters location, member of

REUTERS/Edgard Garrido MEXICO CITY (Reuters) - Mexican state oil company Pemex (PEMX.UL) reached a $295 million settlement with a group including German industrial conglomerate Siemens (SIEGn.DE) in a longstanding dispute over a refinery project, a person familiar with the matter said on Monday.
headquarters location