After years of restructuring and cost-cutting efforts, UK-listed oilfield services group Petrofac on Monday filed for administration, following the termination of its biggest contract. Petrofac’s directors have applied to the High Court of England and Wales to appoint administrators to Petrofac, said the company, which provides infrastructure and engineering services to the oil and gas, renewables, and power supply industries. When appointed, administrators will work alongside Executive Management to preserve value, operational…