The Economic Coordination Committee (ECC) Tuesday approved the assignment of 34% working interest of M/s Pakistan Oilfields Limited (POL) and 6% of M/s Attock Oil Company Limited (AOC) to M/s Polskie Gornictwo Naftowe I Gazowinictwo S.A (Polish Oil and Gas Company) (POGC) in Kirthar South Block (Sindh)