** U.S.-listed shares of oil firms rise premarket, tracking jump in oil prices O/R
** Brent Crude futures LCOc1 up 1.9% at $64.03/barrel; U.S. West Texas Intermediate crude CLc1 rises 2% to $61.12/barrel
** Oil prices rise as trade tensions between China and the United States showed signs of easing and Britain announced its own U.S. trade deal
** Energy majors Chevron CVX.N rises 1.4%, while Exxon XOM.N up 1.2%
** APA Corp APA.O gains 1.4%, EOG Resources EOG.N up 1.3%, Devon Energy DVN.N rises 1.2% and ConocoPhillips COP.N up 1.3%
** Oilfield service companies Halliburton HAL.N and SLB SLB.N rise 1.8% and 1.3%, respectively
** Refiners PBF Energy PBF.N up 1.2% and Marathon Petroleum MPC.N rises 1.1%
(Reporting by Sumit Saha in Bengaluru)
((Sumit.Saha@thomsonreuters.com;))