Construction services; repair; installation services; construction, installation, maintenance and repair of gas transport infrastructure, including pipelines and liquefied gas terminals; repair and maintenance of machinery for mining, quarrying and construction and consultancy and maintenance relating thereto; services in the field of mining extraction; services of installation and repair of heating, gas and ventilation installations; vehicle maintenance and repair services; services of petrol stations and autogas stations; services in the field of exploitation of crude oil and natural gas reserves; construction and maintenance of pipelines and gas pipelines; construction services for linear structures, pipelines, electricity lines, electric tractions and telecommunication supply lines; consultancy services with respect to the above services

Storage, transmission and distribution of natural gas, liquefied natural gas, gaseous and liquid fuels, crude oil; transport and storage of goods; distribution and transport of fuel, energy, heat, natural gas, liquid gas, crude oil derivatives and gas derivatives; pipeline transport services; services of tankless storage of natural gas and underground waste storage

Scientific and technical services and research and design relating thereto; industrial analysis and research services; design and development of computer hardware and software; engineering services, in particular in the field of gas transport, supply of gas, heat and energy and the use of natural gas; technical project preparation; technical consultancy with regard to transport and storage of gases and liquids; energy consulting; services related to scientific and technical tests, research and analysis and engineering, construction and technological design; town planning