[12] In 2009, the company purchased Harvest Operations for US$1.7 billion, along with its subsidiary North Atlantic Refining and its refinery in Come By Chance, Newfoundland and Labrador.

That same year, the company acquired a 50% stake in privately held Petro-Tech, an oil firm with offshore assets in Peru.

[14] On 2 July 2010, KNOC confirmed preliminary discussions regarding a US$2.9 billion offer for the entire issued and to-be-issued share capital of Aberdeen-based Dana Petroleum.

[15][16] In September 2010, Dana's management had continued to reject the takeover approach, but 64% of shares had already been bought by KNOC.

[17][18][19] The takeover was official in October 2010, when KNOC secured 90% of Dana Petroleum's shares by going straight to the shareholders.