Oil stocks rally as US pushes oil majors to invest big in Venezuela

Shares of energy companies rally premarket after U.S. military intervention in oil-rich Venezuela late last week

Government officials tell oil executives to invest in country to revive Venezuelan oil sector, sources say

SLB SLB.N up 8.7%, Halliburton HAL.N up 7.5%, Exxon Mobil XOM.N up 3.4%

Chevron CVX.N, Baker Hughes BKR.O, ConocoPhillips COP.N and Valero Energy VLO.N up about 6% each

J.P.Morgan's head of global commodities strategy Natasha Kaneva says "combined oil reserves from Venezuela, Guyana and the US could give the US about 30% of global oil reserves if consolidated under its influence"

Kaneva expects Chevron, ExxonMobil and ConocoPhillips to be involved in Venezuela

JPM sees oil output expanding to 2.5 mln barrels/day over the next decade if there is a political transition, new investments and reforms

Crude prices down about 0.3% on the day; JPM says oil prices yet to price in bearish impact O/R