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IndustryGlossary Term

Pullback

A horizontal directional drilling (HDD) phase where the product pipe is pulled back through a pre-drilled bore. Subcontractors are often paid a separate pullback rate once this milestone is complete. Delays here directly affect crew scheduling and invoice timing.

Related Terms

Legacy Site

Industry

An older facility or work location operating on outdated infrastructure, systems, or equipment. Subcontractors often face non-standard conditions, ageing assets, and extra compliance requirements on these sites. Mobilisation and scoping costs can be higher due to undocumented or deteriorated site conditions.

Hydrostatic Testing

Industry

A pressure integrity test where pipelines, vessels, or equipment are filled with water and pressurised to detect leaks or weaknesses. Subcontractors are often hired to perform or witness these tests before commissioning. Proper documentation is critical, as clients and regulators require certified test records.

Transmission Line

Industry

A high-voltage power line that moves electricity over long distances between generation sources and distribution networks. Subcontractors often support transmission line projects through clearing, trenching, tower erection, and right-of-way maintenance work.

Stockpoint

Industry

A designated location where materials, parts, or equipment are staged for quick deployment to active job sites. Subcontractors often draw inventory from a client's stockpoint rather than sourcing independently. Knowing stockpoint locations reduces mobilisation delays and simplifies cost tracking.

Mineral Estate

Industry

The legal ownership of subsurface resources like oil, gas, and minerals on a property. Subcontractors work under operators who hold mineral rights, so understanding this ownership structure clarifies who controls site access and project authorisation. Disputes over mineral estates can halt work orders without warning.

Storage Cushion

Industry

A reserve volume of gas kept in an underground storage facility to maintain pressure and operability. For subcontractors, it affects seasonal work demand and mobilisation schedules near storage sites. Operators draw on or inject gas depending on market conditions, driving fluctuating service needs.

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