The largest producers of petcoke in the world are typically countries with extensive oil refining capacities. The United States, China, India, Saudi Arabia, Brazil, Russia, Canada, and the European Union are prominent producers. Major oil companies such as ExxonMobil, Sinopec, Saudi Aramco, Petrobras, Rosneft, and others play significant roles in the production of petcoke. These producers cater to the growing demand for petcoke in various industrial applications, including energy production, Cement manufacturing, and Metals processing. 

The U.S. has one of the largest refining capacities in the world, with numerous refineries producing significant quantities of petcoke. Major companies like ExxonMobil, Chevron, BP, and Valero are significant producers of petcoke in the United States. China has a large industrial sector that requires substantial energy inputs, and its refineries produce a considerable amount of petcoke to meet this demand. State-owned enterprises like Sinopec and China National Petroleum Corporation (CNPC) are among the top producers.

India's refining capacity has been expanding rapidly, making it one of the major producers of petcoke. Reliance Industries, Indian Oil Corporation (IOC), and Bharat Petroleum Corporation Limited (BPCL) are significant producers. Saudi Arabia, home to some of the world's largest oil reserves, has significant refining capacity, contributing to substantial petcoke production. Saudi Aramco is the primary producer of petcoke in Saudi Arabia. Several countries within the EU have substantial refining capacities, contributing to the region's petcoke production. Companies like Royal Dutch Shell, BP, and TotalEnergies operate refineries that produce petcoke.

While the Middle east is a significant producer of petroleum and has substantial refining capacities, it is not the largest producer of Petroleum coke (petcoke) in the world. The largest producers of petcoke are primarily countries with extensive oil refining capacities, such as the United States, China, India, and several others. The Middle East region, including countries like Saudi Arabia, Iran, Iraq, Kuwait, and the United Arab Emirates, does contribute to global petcoke production, but it is not the leading producer. These countries have significant refining operations and produce petcoke as a byproduct of their oil refining processes. However, their production levels may vary over time based on factors such as oil production, refining capacity utilization, and market demand.

Meanwhile, Chinese companies Sino Steel about 140 thousand tons, Petro china about 60 thousand tons and Baosteel, They produced about 50,000 tons of acerate coke. The United States, China, and Japan are the world's largest producers of acerate coke, followed by India, Russia, Germany, and the United Kingdom, the major producers of acerate coke and graphite electrodes. There are two companies in the world that produce needle coke from Bitumen and Coal tar. Both companies are located in Japan.

Brazil has a well-developed oil refining industry, with Petrobras being a major player in petcoke production. Petrobras is the leading producer of petcoke in Brazil. Russia's extensive oil refining industry also produces large quantities of petcoke. Major Russian oil companies like Rosneft and Lukoil are key producers of petcoke. Canada’s oil sands operations produce a significant amount of petcoke as a byproduct. Companies like Suncor Energy and Canadian Natural Resources are notable producers.