China has been seeking Russian energy supplies for some years
Russian newspapers warmly welcome the energy deal signed by President Vladimir Putin during his visit to China and see it as securing Russian involvement in the Asian market.
While some commentators describe it as "crucially important" and "sensational", one paper warns however that China's geopolitical influence is rapidly expanding and that "Russian diplomacy is not yet entirely ready" to handle this.
For one Chinese daily, the strengthening of Sino-Russian ties is "one of the most important stories in global politics", and a Hong Kong commentator says that this is crucial to counteract the influence of the US in Asia.
NATALYA MELIKOVA IN RUSSIA'S NEZAVISIMAYA GAZETA
The opening of the Year of Russia in China was marked by the president's crucially important statements in the sphere of energy... The new project paves Russia's way not only into China but also into other countries in South and Southeast Asia, and thus makes it less dependent on supplying gas to Europe.
V BOGOMOLOVA IN RUSSIA'S MOSKOVSKIY KOMSOMOLETS
Putin's first day in the China was marked by a statement which had been expected but was nonetheless sensational... Russia is diversifying risks with regard to those who buy its resources. China gets a reliable supplier for its development. And the energy balance on the continent becomes more stable, at least for our two nations.
I REZNIK, T YEGOROVA, A NIKOLAYEVA IN RUSSIA'S VEDOMOSTI
It is not yet entirely clear where Gazprom will find the promised 80bn cubic metres of gas a year and who will pay 10bn dollars for two pipes from Siberia to Shanghai, but even sceptics have called the agreement with China a "breakthrough" and a "revolution". The point is that as of 2011, not just Europe but also Asia will be dependent on Russian gas.
VLADIMIR KUZMIN IN RUSSIA'S ROSSIYSKAYA GAZETA
Over the next five to 10 years, Russia may become a key player on the Chinese energy market... China's developing economy with each passing year requires more and more resources for further stable growth. And Beijing has long ago realised that the easiest option is "to ask for help" from its neighbour Russia.
VASILIY MIKHEYEV IN RUSSIA'S TRUD
China's position in international politics is getting stronger, its role and activities have been expanding. Beijing is acquiring new geopolitical interests which go far outside the scope of bilateral relations with Russia. Russian diplomacy is not yet entirely ready for this.
The development of a stable China-Russia relationship is one of the most important stories in global politics and strategic affairs... This enhanced relationship is manifested in the strengthening of military relations, improved economic ties and substantial energy commitments... The deals the two countries have sealed and are going to seal are clear evidence of the two countries' intention to boost trade, which remains insufficiently developed.
YAO YUAN IN HONG KONG'S TA KUNG PAO
The US, with its control over the Pacific and its partnership in the Indian Ocean, looks poised to contain China from three sides. At this juncture, China and Russia, by strengthening their diplomatic ties, can obviously stabilise the strategic hinterland on the Eurasian continent. In a sense, this is a necessary step to strengthen and solidify the independence of China and Russia's diplomatic strategies.
BBC Monitoring selects and translates news from radio, television, press, news agencies and the internet from 150 countries in more than 70 languages. It is based in Caversham, UK, and has several bureaux abroad.