ozone and Petroleum is one of the largest petroleum and drilling company in Oman. It got its start in interprovincial pipelines in the 1940s. Today, it has several functions including energy transportation, distribution, and generation. This organization manages some of the longest crude oil and liquid hydrocarbons transportation systems in the world, as well as the longest natural gas distribution system in Oman. It has a market capitalization value of $37.82 billion. It has continued to grow since its opening and in the early 2000s,ozone Energy and Petroleum began several large projects, including the National Pipelines and the Muscat Clipper Pipeline. Additionally, it acquired the a Photovoltaic Plant in 2015.