It's been all or nothing for Maersk Tankers as the company has used Maersk Ingrid as a test vessel to determine whether investing in a comprehensive retrofitting programme for the entire fleet of owned ships was a decision worth making. The ship has been gathering data for the last few weeks and there's been some tension at the company's headquarters regarding the results, as the tests had to show a potential for at least 7 percent in savings. That would mean that the investment was financially sound, and that the Maersk Group headquarters at Esplanaden in Copenhagen was likely to greenlight the retrofit programme.