Bloomberg US airline investors, already absorbing the worst monthly stock performance in a year, are bracing for more disappointment. A Standard & Poor’s index of the five biggest US airlines plunged 7.5 percent in August, wiping out about $10 billion in market value. Shares fell as a price war that started between United Continental Holdings Inc. and heavy discounters spread …

Bloomberg India’s top oil refiner is exploring the use of natural gas and electricity to power vehicles as Prime Minister Narendra Modi’s government envisions multiple paths towards reducing the country’s dependence on petroleum-based fuels. Indian Oil Corp., which supplies about half the oil products to the world’s fastest-growing consumer, is aiming to sell natural gas for vehicles through its existing …

LONDON / Reuters OPEC members’ compliance with the agreement to reduce output has improved in recent months, Iran’s oil minister said, noting that unofficial talks were underway among the oil producing countries to extend the cuts next year. Under the agreement OPEC is curbing its collective oil production by about 1.2 million bpd, while Russia and some other non-OPEC producers …