Russia, the leader of the non-OPEC producers in the OPEC+ pact, is unlikely to deliver all the 100,000 bpd monthly increases under the agreement this year, analysts tell Bloomberg, in another bullish factor for oil market tightness and prices in the first half of 2022. Under the OPEC+ agreement, Russia, like Saudi Arabia, is allowed to increase its oil production by around 100,000 bpd each month out of the total OPEC+ monthly production growth of 400,000 bpd. Russia, however, has seen setbacks recently in its attempt to pump to its quota, and will…