Seadrill Partners, a subsidiary of Norwegian oil and gas equipment company Seadrill, with interests in three rigs and one drillship, filed on Friday with the SEC to raise up to $225 million in an initial public offering. The Hamilton, Bermuda-based company, which was founded in 1972, plans to list on the NYSE under the symbol SDLP. Citi is the sole bookrunner on the deal. No pricing terms were disclosed.