FieldNews
Subscribe

Daily oil & gas and construction news for subcontractors

IndustryGlossary Term

Wellhead-To-Water

A scope-of-work term covering all field service activities from the producing wellhead to the point of water disposal or treatment. For subcontractors, it defines mobilisation boundaries and billable work limits on produced-water handling projects. Knowing this scope prevents disputes over who owns each task segment.

Related Terms

Alternative Delivery

Industry

A project procurement model where design and construction are bundled under one contract, such as design-build or EPC. Subcontractors often engage through a prime contractor rather than directly with the owner. Scope, risk, and payment terms can differ significantly from traditional bid-build arrangements.

Lean Construction

Industry

A project delivery approach that eliminates wasted time, materials, and labour on job sites. Subcontractors use lean methods to tighten scheduling, reduce idle crew time, and improve handoffs between trades. It often involves short-interval planning tools like the Last Planner System.

Limited Notice To Proceed

Industry

An LNTP (Limited Notice to Proceed) authorises subcontractors to begin a defined scope of work before the full contract is executed. It typically covers early mobilisation, procurement, or site prep activities up to a specified dollar limit. Work performed beyond that limit is at the subcontractor's own risk until full NTP is issued.

Design-Bid-Build

Industry

A project delivery method where design is completed before subcontractors are invited to bid. Scope is fully defined upfront, reducing ambiguity in your quote. Common in construction; less flexible once awarded, so price your bid carefully.

Integrity Management

Industry

A structured programme for inspecting, maintaining, and documenting assets to ensure they remain safe and operational. Subcontractors are often hired to perform integrity work such as corrosion inspection, NDT, and pipeline assessments. Accurate recordkeeping is critical, as clients and regulators require full audit trails.

Epc (engineering, Procurement, and Construction) Contractor

Industry

A company hired to deliver a project from design through build, acting as the main contractor above subcontractors. As a subcontractor, your client and contract holder is typically the EPC, not the asset owner. They control scope, scheduling, and invoice approval on site.

Stay sharp on field operations

Industry news and insights, delivered to your inbox.

Subscribe to FieldNews
A community project byAimsio