Russian Federation and Saudi Arabia have clinched a number of lucrative deals as King Salman paid the first official visit to Russian Federation by a Saudi monarch.
Both sides are involved in the conflict, but on opposing sides.
Saudi Arabia is a close US ally and does not have a history of warm relations with Russian Federation.
He said that the visit of King Salman will give a great impetus to the common relations.
Putin described his talk with the Saudi king as very productive, according to comments carried by state media.
Russian Federation agreed to help the kingdom develop its own military industries including a plan to "localise the manufacturing and sustainment of parts of the S-400" system and the of the Kalashnikov automatic rifle and its ammunition in Saudi Arabia, Sami said.
He also mentioned that Russian firms have been discussing possible future deals with energy giant Saudi Aramco, such as the provision of drilling services in Saudi Arabia and in crude trading.
The first thing that comes to mind when discussing the relations between the two countries is the Syrian issue.More news: Federation Internationale de Football Association poppy ban to be lifted for United Kingdom home nations
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In a significant intervention over organisation of the World Cup, Russian president Vladimir Putin has expressed concern over delays to preparations but says they are not yet "critical". Both are US allies, strong USA allies.
If Putin decides to run, he is widely expected to win a landslide victory in the first round, because he will face no strong challenge. It's called diplomacy. We do a lot of that, they do a lot of that.
Referring to the ongoing coercive rhetoric against Pyongyang by United States President Donald Trump, Putin said coercive rhetoric against Pyongyang and attempts "to speak from a position of strength" only give more power to the North Korean leadership.
Experts believe, however, that the alliance between Moscow and Riyadh may change the current situation on the world oil market.
Should the uptake of EVs rise to one-third of new cars by 2040, as many industry analysts expect, up from just 1 percent today, that could "affect oil demand by around 9 million bpd", Barclays said.
Saudi Arabia and Russian Federation produce nearly a quarter of all oil in the world.
Assessing the results of the Thursday talks, King Salman bin Abdulaziz al-Saud emphasized that the outlook of Moscow and Riyadh on many regional and global problems coincide. The heads of the countries of the Middle East maintain close ties with Moscow.