The National Oil Corporation subsidiaries carry out oil and Gas E&P. These activities cover vast areas both onshore and offshore. The NOC has a grid of onshore oil, gas and product pipelines, crude oil export facilities and a gas pipeline.

The NOC companies cover exploring, developing, and producing oil and gas and internal and external marketing companies. It also has joint contracts with international companies specializing in these fields.

Consequently, the NOC has a group of companies to refine and manufacture oil and natural gas, operating several refineries. The most important are Ras Al Anouf Refinery as well as Al Zawia Refinery, and a group of factories that produce ammonia, urea and methanol at the Brega petrochemical complex. These complexes also include a natural gas liquification plant, the ethylene plant and the polyethylene plant high density and low-density complex at Ras Lanuf.

Moreover, the NOC owns service companies that drill and maintain oil wells, provide all materials and tools used in drilling operations, supply, install and maintain oil and gas pipelines. Additionally, the NOC establish and maintain oil and gas reservoirs, conduct technical and economic studies, procurement of materials, equipment and training.

In addition, the NOC follows the Libyan Oil Institute, which conducts technical tests and tests for the stages of exploration and production of oil and its derivatives. The NOC also performs quality-control tests and issues certificates, evaluates patents of inventions and licenses, as well as local and international scientific publishing tools.

The NOC also supports the oil industry with qualified national standards in human resources development. We are able to provide the formation of specialized and technical facilities for the operation and maintenance units through its institutes and centres, the most important of which is the Petroleum Institute for Rehabilitation and Training and the Qualified Training Center.