 Stolt vessel POLARIS installed all the flowlines and subsea structures in J-Lay and S-Lay pipelay modes.Production at the well was shut down for three weeks after 19 June 2008, after an attack by the Movement for the Emancipation of the Niger Delta.On 20 December 2011 an oil spill occurred that "likely was less than 40,000 barrels, or 1.68 million gallons [6.4 megalitres]".