The World Bank has said that commodity prices are expected to remain weak in 2015, despite a slight rebound in oil prices.

The World Bank is nudging up its 2015 forecast for crude oil prices from $ 53 in April to $ 57 per barrel after oil prices rose 17 percent in the Apr-Jun quarter.

This was contained in the Bank’s latest Commodity Markets Outlook, a quarterly update on the state of the international commodity markets.

According to the Bank, energy prices rose 12 percent in the quarter, with the surge in oil offset by declines in natural gas (down 13 percent) and coal prices (down 4 percent). However, the Bank said it expects energy prices to average 39 percent below 2014 levels.

Natural gas prices are projected to decline across all three main markets—U.S., Europe, and Asia—and coal prices to fall 17 percent. Excluding energy, the World Bank reports a 2 percent decline in prices for the quarter, and forecasts that non-energy prices will average 12 percent below 2014 levels this year.

“Demand for crude oil was higher than expected in the second quarter. Despite the marginal increase in the price forecast for 2015, large inventories and rising output from OPEC members suggest prices will likely remain weak in the medium-term,” said John Baffes, Senior Economist and lead author of Commodity Markets Outlook.