Oil investors must be getting dizzy. In the two months since OPEC began talking about capping production, speculators’ sentiment has swung wildly, with government and exchange data showing the four biggest weekly position changes ever for…

Oil and gas industry conditions stand to gain strength after 2017, in a confluence of growing demand and a collapse in no-shale capacity, according to an end-of-quarter report from Morningstar in Chicago. “We are increasingly bullish on oil…

Oil halted gains after rising above $50 a barrel in London for the first time in more than three weeks, as plans by some OPEC members to boost output raised doubts the group will be able to implement its production cut in November. Brent futures…