Integrated Oil & Gas Companies in Houston

Integrated oil companies, often called supermajors, are among the most capital-intensive businesses on Earth. These vertically integrated giants manage every stage of the petroleum lifecycle: geological exploration, drilling and well completion, crude oil production, pipeline transportation, refinery processing, petrochemical manufacturing, and retail fuel distribution.

Houston's integrated sector is anchored by ExxonMobil and Chevron — two of the five global supermajors. ExxonMobil relocated to its 385-acre campus in Spring, TX, in 2015, while Chevron moved from San Ramon, California, in 2022. Together, these two companies alone employ over 100,000 people and generate more than $500 billion in annual revenue.

The integrated model provides resilience against oil price volatility. When crude prices drop, refining and chemical margins often rise, providing a natural hedge. This is why integrated companies have survived and thrived through every boom-and-bust cycle since the early 1900s.