Rompetrol Rafinare, a member of Dutch-registered The Rompetrol Group, said total investment in Petromidia refinery reached $600 million in the past five years.

“Revamping the coker unit was part of The Rompetrol Group and its sole shareholder KazMunayGas’ strategy to align Petromidia’s installations to the latest European quality standards,” said Sorin Graure, general manager of Petromidia.

Modernization works began in 2008 and were developed in partnership with Rominserv, the general contractors of Rompetrol, and US ConocoPhillips. Construction and start-up of the project took place between 2010 and 2013, Rompetrol said.

Petromidia’s coker unit has a total processing capacity of 1.7 tons of residual oil a year.

Rompetrol is fully owned by Kazakh state-run company KazMunayGas.