Construction, installation, laying, repair, refurbishment, modification and maintenance of pipes, pipelines, pipeline systems, and 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, and horsepower additions for pipelines and pipeline facilities; 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; horizontal directional drilling for installing underground pipelines; excavation services

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

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