U.S. shale companies, including Pioneer's CEO, are facing allegations of collusion over oil pricing, according to reports from the Financial Times. This news follows a Wall Street Journal article discussing similar claims against Pioneer's CEO, highlighting the illegal nature of price fixing, especially when supported by government actions that limit competition. Despite these allegations, it was noted that Pioneer had significantly increased its oil production. Additionally, Microsoft is set to face EU competition charges related to its Teams software, as the EU raises concerns about potential anti-competitive practices, even though Microsoft had previously offered concessions.