Shell is under pressure to reduce carbon emissions, with its own plans being thrown out by a court in The Netherlands, which told the oil major to speed up the process. The joint venture, Aera, produces about 125,000 barrels of oil and 32mln cubic feet of natural gas each day or about 25% of California's oil and gas production, which has some of the strictest emission controls in the US. Shell has been steadily reducing its presence in the US and has sold refinery assets in Washington and Texas, having already disposed of its California oil refining operations, as it pivots towards renewable energy.