Exxon, Chevron Q2 earnings preview: Eyes on Venezuela assets and margin boosts (XOM:NYSE)

Exxon Mobil and Chevron are set to release their Q2 earnings, with analysts expecting strong year-over-year growth in EPS and revenue for both. Key factors to watch include improved refining margins, the impact of international developments like Chevron's expansion in Venezuela, and the potential influence of oil price volatility and political scrutiny on future performance.