37 Operation of oil and gas fields; construction of structures for the production, storage and transportation of crude oil and gas; drilling of wells; extraction of oil; oil pipeline construction; oil pumping; natural resources extraction services; refuelling and fuelling services; vehicle service stations; maintenance, washing and repair of vehicles and vehicle parts; vehicle oil change services; assistance in case of vehicle breakdown (repair); greasing, lubrication and engine tuning; inflation, repair and fitting of tyres; road construction, maintenance and upkeep services; commissioning, maintenance, troubleshooting, repair of apparatus and installation of production, distribution and storage of energies; construction, maintenance and upkeep of refineries and structures for the production, distribution and storage of petroleum, gas and chemical products; rental of rigs and drilling equipment; construction, installation and maintenance of pipelines, oil and gas pipelines; recharging of batteries; recharging of electric vehicles; installation, repair and maintenance of installations for supplying power to and recharging batteries and vehicles; installation of telephone equipment; installation, programming and maintenance of home automation systems in the field of energy