A cluster of banks are considering the move over fears that the Eike Batista-controlled company could be close to filing for bankruptcy, Bloomberg reports citing unnamed sources.

However OSX is already in the market for buyers for the OSX-1 and OSX-2 which were used as collateral on loans, it says.

OSX-1 is currently operating in an oil field offshore Brazil while the OSX-2 is docked in Malaysia having just finished being converted at Keppel Shipyard in Singapore.