The pipeline group is led by U.S. major Chevron and includes Russian pipeline company Transneft, ExxonMobil , Royal Dutch Shell and LUKOIL .
The group exports CPC Blend CPC-E from a terminal near the Russian port of Novorossiisk. Russian companies such as Rosneft, Surgutneftegas and TNK-BP, also ship crude via CPC.
In 2008, CPC transported 32.2 million tonnes of oil, down from 32.6 million tonnes in 2007.
CPC state shareholders Russia and Kazakhstan own 31 percent and 19 percent in CPC, respectively.
BP is leaving the group over disagreement about its expansion terms approved in December by all other consortium members.