Fortune Global 500 list heavy on oil

Wal-Mart took the No. 1 spot on Fortune’s annual rankings of the world’s largest companies based on revenue, but the top of the list was sloshing with oil.

Royal Dutch Shell dropped to No. 2 behind the world’s largest retailer, while Chinese oil companies rose in the rankings. China can now claim 95 companies on the list, six more than 2013, with Sinopec and China National Petroleum each moving up one spot from 2013. America still leads the world with 128 companies.

Texas landed a number a companies in the list, which is heavy with state owned oil giants. Exxon landed at No. 3, while Phillips 66 and Valero made the top 100. Houston oil field service giants Schlumberger and Halliburton also made the list at 228 and 412 respectively.

See the slideshow above for a closer look at the energy and oil companies that ranked among the 100 biggest in the world.