Brent, WTI Decline

Oil prices fell on Sunday at the start of the session, extending last week's decline, as a US official said Russia was showing signs it might be willing to have substantive negotiations over Ukraine.
Brent crude futures fell $1.82, or 1.6%, to $110.85 a barrel. WTI crude futures fell $2.41, or 2.2%, to $106.92 a barrel, Finance.yahoo.com reported.
Russia's invasion of Ukraine in late February, which Moscow calls a "special operation", has roiled energy markets globally. Brent last week was down 4.8% after hitting $139.13 on March 7. 
US crude recorded a weekly drop of 5.7% after touching a high of $130.50 on March 7. 
Both contracts last touched those price peaks in 2008. Investors have been concerned about a tighter oil market following Russia's action. 
Prices fell last week as traders assessed potential improvements to the supply outlook that has been disrupted by the Ukraine crisis.
“Russia is showing signs it might be willing to have substantive negotiations over Ukraine, even as Moscow is intent on ‘destroying’ its neighbor,” US Deputy Secretary of State Wendy Sherman said on Sunday.
“Russia-Ukraine talks are not taking place right now but will continue on Monday,” Kremlin Spokesman Dmitry Peskov was quoted as saying on Sunday by the RIA news agency.