SHARES OF U.S. OIL COMPANIES DECLINE PREMARKET AS OIL PRICES FALL MORE THAN 2%
SLB DOWN 1.6%, HALLIBURTON FALLS 2.5%, OCCIDENTAL PETROLEUM DECLINES 3.7%
EXXON MOBIL DOWN 3.1%, CHEVRON FALLS 2.6%, CONOCOPHILLIPS OFF 2.6%
APA DOWN 4.3%, MARATHON PETROLEUM OFF 3.1%, DIAMOND BACK ENERGY FALLS 3.2%