Paying Quantities

A document created in the field that records work performed, equipment used, materials consumed, and time spent. Field tickets are the basis for invoicing and must typically be approved by the customer before payment.

A regional term covering oil and gas producing areas across Oklahoma, Kansas, and parts of Texas. For subcontractors, it represents a distinct operational market with its own labour rates, regulatory environment, and client base. Crews mobilising here should expect work tied to conventional plays and ageing infrastructure.

A bearing that uses rolling elements — balls or rollers — to reduce friction between moving parts. Common in pumps, motors, and rotating equipment on job sites. Subcontractors should inspect and replace these during scheduled maintenance to avoid unplanned downtime.

A facility that moves oil, gas, or water through a pipeline using mechanical pumps. Subcontractors are frequently mobilised here for maintenance, inspection, and equipment upgrades. Work scope often includes rotating equipment, instrumentation, and civil trades.

A method operators use to value oil and gas reserves by discounting future cash flows at 10% annually. Higher NPV10 signals a healthier client who can fund long-term projects and honour contracts. Subcontractors can use it to gauge whether a prospect client's asset base justifies pursuing work with them.

A network of pipelines, compressors, and facilities that collect hydrocarbons from wellheads and move them to processing points. Subcontractors frequently support construction, inspection, and maintenance work across these systems. Scopes can span remote multi-well pads, requiring strong logistics and crew coordination.

What Is an AFE in Oil and Gas and How Does It Affect Subcontractor Payments?

An AFE (Authorization for Expenditure) controls every dollar spent on an oilfield project. Learn how it affects your billing, change orders, and cash flow as a subcontractor.