FieldNews
Subscribe
Industry Glossary Term

Lower-Tier Subcontractor

Related Terms

Call for Participation

Industry

A formal notice from an operator or prime contractor inviting subcontractors to express interest in an upcoming project or contract. It typically outlines scope, required certifications, and submission deadlines. Responding early can improve your chances of being shortlisted for the work.

Sources Sought

Industry

A notice issued by a client or prime contractor to identify qualified subcontractors before a formal tender is released. Responding helps get your company on the bidders list. It is not a contract offer, but skipping it can mean missing the actual bid.

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.

Proactive Maintenance

Industry

Scheduled inspections and repairs performed before equipment fails, reducing costly downtime on job sites. Subcontractors who offer proactive maintenance services can secure longer-term service agreements with operators. It also helps avoid liability tied to unexpected breakdowns during active contracts.

Crawler Crane

Industry

A large lifting crane mounted on tracked undercarriage, used for heavy lifts on unstable or soft ground at oil and gas and construction sites. Subcontractors often source these through specialised rigging firms on a day-rate or project basis. Confirm ground-bearing capacity and operator certifications before mobilising.

Lower 48

Industry

Refers to the contiguous United States, excluding Alaska and Hawaii. For subcontractors, it defines a common work jurisdiction with distinct regulatory, tax, and labour rules from Canadian or Alaskan operations. Mobilisation costs and compliance requirements differ significantly when crews cross into or out of this region.

Stay sharp on field operations

Industry news and insights, delivered to your inbox.

Subscribe to FieldNews
A community project by Aimsio