Seacor Marine Holdings, a global offshore service vessel company based in Houma, has acquired four foreign-flagged platform supply vessels for between $7 million and $9 million in cash.

Seacor said it had agreed to keep the exact price confidential.

The four vessels are midsize platform service vessels built between 2009 and 2010 with dynamic positioning class two systems. All the vessels are currently located in West Africa. Three of the four are employed on time charters.

"We believe the price represents strong value for the vessels and offers a compelling use of a portion of our cash reserves," said John Gellert, Seacor chief executive officer.