Rosneft and BP today signed several agreements strengthening the long term strategic relationship between the two companies, at the St. Petersburg International Economic Forum.

Rosneft and China National Chemical Corporation (ChemChina) signed at the St. Petersburg International Economic Forum a contract for crude oil supplies to the Chinese company.

Total S.A. and Rosneft signed at the St. Petersburg International Economic Forum an agreement, confirming the execution of a sale and purchase agreement with regard to the 16.67% share in PCK Raffinerie GmbH. The document was signed by Rosneft Chairman of the Management Board Igor Sechin and Chief Executive Officer of Total Patrick Pouyanné.

Itera, a 100% Rosneft subsidiary, and General Electric signed an agreement of intent regarding natural gas processing cooperation at the St. Petersburg International Economic Forum.

BP could be close to a $700 million deal with Russia’s Rosneft for a 20% stake in a Siberian oilfield, the company led by Igor Sechin further showed how national companies can cope with sanctions, maintaining ties with Western companies and progressively switching to Asian markets.

"Uncertainty is the rule of the game in this industry," the head of France's Total Patrick Pouyanne said this month. "We are in the long-term business. This is why at Total we are keen to maintain our commitment to Russia."

Europe’s biggest oil groups are extending business deals with their Russian energy partners despite this month’s EU vote to continue imposing sanctions, highlighting how western companies are learning to live with the restrictions placed on Moscow.

Through a series of deals with Rosneft, the Russian state-controlled oil company, Trafigura exported almost 9m barrels of crude in April, worth more than $500m, according to port data compiled by Nefte Compass, an industry publication.

Venezuela and Russia's top oil producer, Rosneft, have agreed on around $14 billion in investment in the South American OPEC country's oil and gas sector, President Nicolas Maduro said on Wednesday evening.

OAO Rosneft may have to turn to competitors to buy natural gas and state aid to help honor a $50 billion contract it won away from OAO Novatek three years ago, according to two people with knowledge of the matter.