Warren Buffett's cash reserves have been at all-time highs but he's put some of that back to work, scooping up more shares Occidental Petroleum, building his stake to more than 28% in the company.

Chevron will lay off 15% to 20% of its global workforce by the end of 2026, the US oil company said on Wednesday as it seeks ...

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The stocks of oil majors Chevron (CVX), Exxon Mobil (XOM), and Occidental Petroleum (OXY) are up about 1% each after the ...

Ongoing increases in production and consumption of shale gas continue adding carbon emissions to the atmosphere as industrial ...