Forecasts for a surplus of supply Oversupply in West African and European markets help to push the Brent benchmark down Movement.down.loss 13 % January , despite geopolitical war Geopolitical.tension in Russia , United States and Ukraine .

Forecasts for a supply surplus Oversupply in West African and European markets help to push the Brent benchmark down Movement.down.loss 5 percent last month , despite geopolitical war Geopolitical.tension in Russia , Saudi Arabia and Ukraine .

Forecasts for a glut in supply Oversupply in West African and European markets help to push the Brent benchmark down Movement.down.loss more than 20 % last month , despite geopolitical war Geopolitical.tension in Russia , Yemen and Ukraine .

Iran and Iraq were engaged in an eight-year all-out war Geopolitical.tension .

Forecasts for a oversupply Oversupply in West African and European markets help to push the Brent benchmark down Movement.down.loss more than 20 % January , despite geopolitical war Geopolitical.tension in Iraq , Libya and Ukraine .

`` We 're gyrating between two stories -- a trade war trade.financial.tension and a shooting war Geopolitical.tension , '' said Helima Croft , chief commodities strategist at RBC Capital Markets in New York .

Forecasts for a supply overhang Oversupply in West African and European markets help to push the Brent benchmark down Movement.down.loss 9 percent the prior month , despite geopolitical war Geopolitical.tension in Russia , United States and Ukraine .