Maxx-Studio/Shutterstock Crude oil production by Opec-plus producers with a quota jumped by 360,000 b/d in February to 38.36 million b/d. The alliance’s oil production is now back to October’s level despite the agreement to slash output by 2 million b/d. Russia and Nigeria led the increase in monthly output, but these barrels could easily disappear. Save for later Print Download Share LinkedIn Twitter Including the four countries without a quota — Iran, Libya, Venezuela and Mexico — Opec-plus’ crude oil production in February came to 44.36 million barrels per day, according to Energy Intelligence’s assessment. This is a 450,000 b/d increase on January and a four-month high.