The sector of companies and subcontractors that provide specialised labour, equipment, and technical services to oil and gas operators. This includes drilling, completions, maintenance, and production support work. Most field subcontractors operate within the OFS sector, working under Tier 1 service companies or directly for operators.
OFS (Oilfield Field Services)
Related Terms
Switchgear
IndustryElectrical equipment used to control, protect, and isolate power systems on job sites. Subcontractors working near switchgear must follow strict lockout/tagout procedures. Installation and maintenance work often requires certified electricians and site-specific safety permits.
Rotary Rig Count
IndustryA weekly tally of active drilling rigs operating across a region, published by companies like Baker Hughes. Subcontractors use it to gauge market demand and anticipate work volumes. A rising count typically signals increased opportunities for drilling-related field services.
Waterway Crossing
IndustryA section of pipeline, conduit, or cable routed beneath or across a river, creek, or other body of water. Crossings typically use methods like horizontal directional drilling (HDD) or open-cut trenching. Subcontractors must meet strict environmental permits and inspection requirements before and after installation.
Call for Interest
IndustryA formal notice from an operator or prime contractor inviting subcontractors to express interest in upcoming work. It is not a binding tender but helps owners build a qualified vendor list. Responding early can position your company for the actual bid process.
Thermal Resource Fleet
IndustryA subcontractor's collection of heat-generating equipment, such as steam generators, line heaters, and freeze protection units. These assets are mobilised for cold-weather operations, pipeline conditioning, or process heating on oil and gas sites. Fleet size directly affects a subcontractor's capacity to bid on thermal service contracts.
Earn-In Agreement
IndustryA deal where a subcontractor gains equity or a stake in a project by completing defined work or spending milestones. Common in junior oil and gas ventures where cash is tight. Your services effectively buy you into the asset rather than just earning a fee.
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yesterdayRelated Guides
How Operator Mergers and Acquisitions Affect Your Subcontract Agreements
When operators merge, get acquired, or sell assets, subcontractor agreements are caught in the middle. Learn how M&A activity affects your MSA, payment terms, vendor status, and what to do before, during, and after a deal closes.
Industry GuideHow Rig Count Trends Affect Subcontractor Demand and What to Do About It
Rig counts are the earliest signal of where field service work is heading. Learn how to read drilling activity trends, anticipate demand shifts, and position your crew before the phone stops ringing.
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