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Daily oil & gas and construction news for subcontractors

IndustryGlossary Term

Aeroderivative Turbine

A lightweight gas turbine adapted from jet engine technology, used for power generation and compression on oil and gas sites. Subcontractors are often called in for maintenance, hot-section inspections, and component exchanges. These units start up quickly and are common on remote or temporary installations.

Related Terms

Sealed Bid

Industry

A confidential tender submission where subcontractors submit pricing without knowing competitors' rates. All bids are opened simultaneously by the hiring company. This process is common in public sector and large operator contracts across oil and gas and construction.

Pipeline Open Season

Industry

A formal period when a pipeline operator solicits capacity commitments from shippers before building or expanding a line. For subcontractors, it signals upcoming construction and maintenance work. Winning bids during this phase often trigger mobilisation timelines and crew planning.

Early-Works

Industry

Preliminary site preparation activities awarded before a project's main contract is finalised. For subcontractors, this means mobilising early—often under a letter of intent—to handle clearing, grading, or utility work. Scope and payment terms can be limited, so review your agreement carefully before committing resources.

EPCM (Engineering, Procurement, Construction Management)

Industry

A project delivery model where one firm manages engineering, procurement, and construction on the owner's behalf. Subcontractors are hired directly by the owner, not the EPCM firm. Understanding this structure clarifies your contract chain, payment authority, and site reporting lines.

Transportation Electrification

Industry

The shift from diesel-powered trucks and equipment to electric or hybrid alternatives on job sites and haul routes. For subcontractors, this affects fleet investment decisions, charging infrastructure needs, and site logistics. Some client contracts now require or incentivise electrified transport to meet emissions targets.

Reinforcing Bar (rebar)

Industry

Steel bars embedded in concrete to add tensile strength in foundations, structures, and infrastructure builds. Subcontractors handling rebar must account for material costs, placement labour, and tie wire in their bids. Improper installation can trigger costly rework and inspection failures.

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