Analyze the relationship between 'Kosmos Energy' and 'DALLAS' within the context of the input sentence.
Options: industry, product/material produced, headquarters location, brand

CHICAGO -- ADM Donates $325,000 to Promote Clean Waterways Source: Archer Daniels Midland Company TORRANCE, Calif. -- Phenomenex Raises $19,450 for American Red Cross in Soccer Charity Cup Source: Phenomenex, Inc. DALLAS -- Perot Museum of Nature and Science Announces Innovative Kosmos Energy STEM Teacher Institute to Empower Teachers in Science Instruction Source: Kosmos Energy CHICAGO -- Hyatt to Partner with Khan Academy to Bring Open-Source Global Learning to Colleagues and Communities Source: Hyatt
headquarters location