Oil prices declined during Friday's trading session, reaching their lowest levels since early March.
Brent crude futures fell by $3.05, or 3.37 percent, at settlement to close at $87.33 per barrel.
US West Texas Intermediate (WTI) crude dropped by $2.83, or 3.23 percent, to settle at $84.88 per barrel, its lowest level since 17th April.
WAM