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IndustryGlossary Term

Ngl (natural Gas Liquids) Value Chain

The full sequence of extracting, processing, transporting, and selling natural gas liquids such as propane, butane, and ethane. Subcontractors work across multiple stages, including plant turnarounds, pipeline installation, and fractionation facility maintenance. Activity levels and contract demand shift depending on which part of the chain is seeing investment.

Related Terms

Deferred Maintenance

Industry

Upkeep or repair work that has been postponed by an asset owner due to budget constraints or scheduling conflicts. For subcontractors, deferred maintenance often triggers urgent, high-volume scopes when work is finally released. Expect compressed timelines, ageing equipment, and increased safety hazards on these jobs.

Spillway

Industry

A controlled channel or outlet designed to safely redirect excess water away from a work site. Subcontractors may be responsible for installing, maintaining, or working around spillways during site grading, civil, or environmental scopes.

AGC (Associated General Contractors of America)

Industry

A U.S. trade association representing general contractors in construction. Subcontractors working with AGC members often encounter standardised contract templates and safety compliance expectations tied to membership. Knowing AGC standards helps subs align bids and prequalification documents with GC requirements.

Npr-A (national Petroleum Reserve in Alaska)

Industry

A federally managed exploration zone on Alaska's North Slope, open to oil and gas development. Subcontractors working here face strict federal permitting, remote logistics, and seasonal access limitations. Mobilisation costs and compliance requirements are significantly higher than standard onshore projects.

Long-Span Structural Systems

Industry

Structural frameworks that cover large distances without intermediate supports, such as trusses, arches, or space frames. Subcontractors encounter these in industrial buildings, processing facilities, and modular plant construction. Work in these areas often requires specialised rigging, elevated access planning, and load-path awareness.

Feedgas

Industry

Raw natural gas supplied to a processing plant or facility for treatment and conditioning. Feedgas volumes and composition directly affect how long subcontractors are mobilised on-site. Changes to feedgas quality can trigger scope adjustments and additional service orders.

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