Chevron Corp. has prevailed in a 20-month fight to buy Hess Corp. for $53 billion, overcoming a challenge by arch rival Exxon ...

The acquisition of Hess—and its stake in a generational oil find—helps clear up lingering doubts about Chevron’s growth ...

Block, the financial technology company formerly known as Square, will join the index before the start of trading on Wednesday, according to S&P Dow Jones Indices, which oversees the S&P 500.