** Shares of oil and gas companies rise premarket, tracking
crude prices O/R
** Brent crude LCOc1 up 1.1% at $78.43/bbl and U.S. West
Texas Intermediate crude CLc1 up 1.4% at $73.23/bbl, as Middle
East supply concerns arising from the Israel-Hamas war and the
shutdown of a top Libyan oilfield lifted crude prices
** Energy majors Exxon Mobil XOM.N and Chevron CVX.N
each up 0.4%
** Marathon Oil MRO.N , Devon Energy DVN.N , SM Energy
SM.N and Vital Energy VTLE.N up between 0.4% and 1.9%
** Oilfield services firms SLB SLB.N and Halliburton
HAL.N gain 0.6% and 0.1%, respectively
(Reporting by Vallari Srivastava)
((Srivastava.Vallari@thomsonreuters.com;))