Construction, installation, laying, repair, refurbishment, modification and maintenance of pipes, pipelines, pipeline systems, pipeline terminals and storage facilities, pipe couplings, gaskets, and connectors; pipe fitting services, namely, the connection of pipelines and repair of pipelines and connectors; construction of compressor stations, cross-compressor installations, plant facilities, pumping stations, meter stations, and horsepower additions for pipelines and pipeline facilities; construction services, namely, site clearing, site restoration, and excavation; construction services, namely, trenching in the nature of excavation and boring services for underground utility systems; construction project management services in the field of pipeline construction, repair, and maintenance; construction project management services, namely, budgeting, constructability reviews, estimation and feasibility studies; construction dewatering, namely, the removal of surface waters and groundwater to facilitate the construction of pipelines; covering, coating, and maintenance of pipelines; under-water installation services, namely, underwater installation of pipelines and connectors; hydro excavation services; pipeline pigging and cleaning services; installation of grease traps; industrial vacuum cleaning services via vacuum trucks; mining services, namely, longwall mining

Information services, namely, providing information and advice relating to the transportation and distribution of materials and fuels by pipelines hub services, namely, terminaling services in the nature of providing natural gas pipelines that link to a network of natural gas pipelines to enable the transfer of natural gas into and out of pipeline systems for distribution to energy customers, terminaling services in the nature of providing petroleum pipelines that link to a network of petroleum pipelines to enable the transfer of petroleum into and out of pipeline systems for distribution to energy customers, and terminaling services in the nature of providing oil pipelines that link to a network of oil pipelines to enable the transfer of oil into and out of pipeline systems for distribution to energy customers

Research, design and developments of pipes, pipelines, connectors, gaskets and couplings for pipeline systems for others; engineering services relating to pipelines, namely, the design of pipes, pipelines, connectors, gaskets, and couplings; drawing of designs, research, electrical engineering and testing services; structural inspection of pipes, pipelines, and pipe connectors, gaskets and couplings; hydrostatic testing services, namely, weld testing and hydrotesting