Shares of oil-and-gas companies fell alongside oil futures as oversupply fears persisted. Light, sweet crude for August delivery traded two cents lower at $50.89 a barrel on the New York Mercantile Exchange, near three-month lows. ConocoPhillips said it would shift capital-expenditure priorities, boosting its dividend at the expense of spending on deepwater drilling, to reflect lower oil prices. By Rob Curran, [email protected]