The US-listed company has filed a $500m shelf registration with the US Securities and Exchange Commission (SEC).

Net proceeds from any sale of shares would go towards paying down debt and funding working capital, capital expenditures or acquisitions.

In mid-May Teekay Offshore tapped the bond market when it raised $275m from a five-year senior unsecured notes due 2019.

The company has been in expansion mode recently with moves into the floating accommodation sector and deepsea towage.

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