KNOT Offshore Partners has filed papers aimed at paving the way for up to $750m in future fundraising power.

The New York-listed spinoff of shuttle tanker giant Knutsen NYK Offshore Tankers (KNOT) filed a shelf registration with the US Securities and Exchange Commission (SEC).

Aberdeen-based KNOT Offshore's mixed filing smooths the path for the sale of shares, bonds and other securities "from time to time".