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at Nasdaq.com (Dec 15, 2014)
at MarketWatch.com (Oct 15, 2014)
at MarketWatch.com (Jan 29, 2013)
at MarketWatch.com (Aug 31, 2011)
GLF vs. ETF Alternatives
GulfMark Offshore Inc provides offshore marine services to companies involved in offshore exploration and production of oil & natural gas. It transports materials, supplies and personnel to offshore facilities and move or position drilling structures.
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