Rominserv provided services to Rompetrol units worth $850 million in the last 10 years, the company said.
The Rompetrol Group is fully owned by Kazakhstan’s KazMunayGas.
Rominserv Valves Iaifo Zalau, the general contractor of Romania’s second-largest oil group Rompetrol, estimates total revenue of $200 million in 2011, slightly down from $217 million a year earlier, the company said Thursday.