Exxon Mobil Corp. released emissions data on customers’ use of its petroleum products for the first time after coming under pressure from investors.

Exxon Mobil Corp. announced several new emissions targets and said it would begin publishing pollution information related to customers’ use of its products for the first time, just days after activist investors criticized the oil giant for its environmental record.

Exxon Mobil Corp. warned it may take up to $30 billion in writedowns on natural gas fields as crashing energy demand and prices spurred a historic losing streak.

America’s oil production will never again reach the record 13 million barrels a day set earlier this year, just before the pandemic devastated global demand, according to Occidental Petroleum Corp.

Chevron Corp. overtook Exxon Mobil Corp. as the largest oil company in America by market value, the first time the Texas-based giant has been dethroned since it began as Standard Oil more than a century ago.

Occidental Petroleum Corp. will have just a single oil rig in the Permian Basin in the second half of the year, illustrating the scale of the shale industry’s pullback and the company’s debt woes.

Abundant natural gas resources, an all-electric plant and just a nine-day hop to energy-hungry Asian markets were not enough to persuade Chevron Corp. to pursue its Kitimat gas export project in western Canada, marking a further blow to the country’s beleaguered fossil fuel industry.

BP Plc agreed to sell its entire business in Alaska to closely held Hilcorp Energy Co. for $5.6 billion, ending a six-decade presence in the state as oil production there declines.

Chevron Corp. posted strong production growth from the Permian Basin combined with a stabilization in its refining operations to beat earnings estimates in the second quarter.

Exxon Mobil Corp. and Chevron Corp.’s unwillingness to venture beyond their core oil and gas business will face a test May 29 when shareholders vote on climate change proposals at both oil companies’ annual meetings.