A network of pipelines, compressors, and facilities that collect hydrocarbons from wellheads and move them to processing points. Subcontractors frequently support construction, inspection, and maintenance work across these systems. Scopes can span remote multi-well pads, requiring strong logistics and crew coordination.
Gathering System
Related Terms
Major Projects Office (mpo)
IndustryA centralised owner or operator division that oversees large-scale capital projects and manages contractor relationships. Subcontractors typically submit bids, invoices, and compliance documents through the MPO rather than individual site teams. Knowing your MPO contact streamlines approvals, change orders, and payment processing.
JV (Joint Venture)
IndustryA formal business arrangement where two or more companies partner to pursue a specific project or contract, which can affect subcontractors by changing who issues purchase orders, approves invoices, or holds liability on site. Field service companies should confirm early which JV partner is the contracting entity to avoid payment delays or scope disputes.
Upstream Tie-in
IndustryA connection point where new pipeline or equipment is integrated into an existing live system closer to the wellhead or source. For subcontractors, this work typically requires strict hot-work permits and precise scheduling around production shutdowns. Delays at tie-in points directly impact your crew's standby time and invoice milestones.
Transmission Planning
IndustryThe long-term process of designing and expanding power grid infrastructure to meet future energy demand. For subcontractors, it drives project pipelines for line construction, right-of-way clearing, and equipment installation. Winning transmission work often requires early engagement with utilities and grid operators.
In-Situ
IndustryWork performed on-site without removing equipment or materials from their installed position. Subcontractors are often mobilised specifically for in-situ repairs, inspections, or testing. Scope and billing should clearly reflect the fixed work location.
Substation
IndustryA facility that converts high-voltage electrical power to usable levels for a job site or facility. Subcontractors in construction and oil & gas often work in, around, or on behalf of substations. Strict access controls and electrical safety certifications are typically required.
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