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IndustryGlossary Term

Paying Quantities

A legal threshold where a well produces enough oil or gas to justify continued operations and generate profit. For subcontractors, it determines whether a site stays active and whether ongoing service contracts remain in force. Loss of paying quantities can trigger contract suspension or early termination clauses.

Related Terms

Turnkey

Industry

A contract where the subcontractor delivers a fully completed scope for a fixed price, assuming all cost and schedule risk. The client pays only upon project completion, not for time or materials spent. This model demands tight cost control, as overruns come directly out of your margin.

MTPA (Million Tonnes Per Annum)

Industry

A measure of a facility's annual production or processing capacity, expressed in millions of tonnes. Larger MTPA ratings typically signal longer project durations and higher subcontractor labour demand. Knowing a site's MTPA helps field service companies anticipate scope size and resource requirements.

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.

Drillship

Industry

A self-propelled vessel equipped with a drilling rig used for offshore exploration and production in deepwater locations, which subcontractors may be mobilised to for specialised services such as equipment maintenance, inspection, or crew support under strict offshore safety and logistical requirements.

Cavern Storage

Industry

Underground storage facilities carved out of salt formations or rock, used to hold large volumes of natural gas, crude oil, or other hydrocarbons. Subcontractors handle construction, maintenance, inspection, and integrity testing at these sites, often needing confined-space and geotechnical certifications. Injection and withdrawal seasons create predictable maintenance windows, helping field service companies plan mobilisation.

Reactivation

Industry

The process of bringing a dormant well, pipeline, or piece of equipment back into active service, often requiring subcontractors to mobilise crews, conduct inspections, and complete compliance checks before full operations can resume. For field service companies, reactivation work can represent a significant surge in contract opportunities, particularly during periods of rising commodity prices.

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