Oil prices face mounting pressure as major energy companies including ExxonMobil and Chevron issue fresh warnings about weakening market conditions. Industry inventories sit at unusually low levels while operational challenges compound the uncertainty surrounding future demand and supply balances. According to a detailed analysis published by Fortune , these developments signal potential volatility ahead for crude markets already strained by shifting global economic signals. The warnings from Exxon and Chevron arrive at a sensitive moment. Both companies reported slower than expected refining margins and pointed to softer gasoline demand in key regions. ExxonMobil executives highlighted inventory draws that have left commercial stockpiles near multi-year lows in parts of the United States and Europe. These tight conditions leave the market vulnerable to any sudden supply disruption or unexpected demand swing.…