A high-stakes corporate clash is unfolding between Chevron (CVX) and ExxonMobil (XOM) — two of the world’s largest oil companies. At the heart of the dispute is Guyana’s offshore Stabroek Block, a massive oil field with over 11 billion barrels of recoverable reserves. Chevron’s planned $53 billion acquisition of Hess Corporation (HES) , which owns a 30% stake in the block, is now facing fierce resistance from ExxonMobil, the project’s operator and 45% stakeholder. ExxonMobil, along with its Chinese partner ...