WILLBROS

Management of pipeline systems, onshore contract rotary drilling, production and other hydrocarbon related facilities for others; [ operating oil and gas wells and other oil and gas related facilities for others; ] project management for others in the field of pipeline systems, oil and gas wells and other oil and gas related facilities

Construction and maintenance of pipeline systems, onshore contract rotary drilling, production and other hydrocarbon related facilities for others; drilling oil and gas wells and other oil and gas related facilities for others

[ Transporting crude and refined petroleum and natural gas by way of pipeline for others ]

Engineering of pipeline systems, onshore contract rotary drilling, production and other hydrocarbon related facilities for others; exploration for and development of oil and gas and other hydrocarbons; engineering services