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AFE: Definition, Budget Approval, and Non-Consent

What Is an AFE?

An AFE, or Authority for Expenditure, is the budget approval document an oil and gas operator sends before spending joint-account money on a specific job. It turns a drilling, completion, workover, or facilities plan into a partner decision: approve, question, or decline under the operating agreement.

Key Takeaways

  • An AFE is a commercial approval document, not a drilling permit.
  • The operator prepares it so working-interest partners can approve their share of a defined scope.
  • Common AFE scopes include drilling, completion, facilities, workover, and abandonment work.
  • Cost overruns are usually handled through a supplemental AFE when the agreement threshold is crossed.
  • Non-consent lets a partner decline some proposed operations, but usually at the cost of delayed production revenue if the job succeeds.

How an AFE Works

An AFE is easiest to understand as a shared estimate with consequences. If four companies own a well and one operates it, the operator cannot simply spend everyone else's money because the drilling team wants to move. It must explain the work and ask the other owners to approve their share.

A useful AFE names the well, field, legal location, operator, target formation, operation type, and ownership split. The cost section breaks the job into recognizable pieces: lease construction, rig move, drilling days, casing, cementing, logging, wellhead equipment, stimulation, flowback, tie-in, contingency, and cleanup.

That scope matters. A CAD 8 million drilling AFE for a Montney horizontal well is not the same thing as a CAD 8 million completion AFE. One covers the hole. The other may cover perforating, hydraulic fracturing, flowback, and tie-in.

After the operator sends the AFE, each partner reviews the plan. Engineers ask whether the operation makes technical sense. Land and commercial teams check the operating agreement. Accounting checks the budget. A partner with a 25% working interest is approving 25% of the cost.

In many North American operating agreements, a partner can go non-consent on certain proposed operations. The partner avoids the upfront cost, but gives up revenue until consenting partners recover a penalty amount from that partner's share of production.

Regulatory Approval Is Different

An AFE does not replace a regulator. In Alberta, AER Directive 056 governs energy development applications and schedules for wells, facilities, and pipelines. In the Gulf of Mexico, BSEE and BOEM handle offshore oversight. In Australia, NOPTA administers offshore titles while NOPSEMA handles offshore safety and environmental management. Those bodies decide whether the operation is allowed. The AFE decides whether partners will pay for it.

Fast Facts

  • A drilling AFE and a completion AFE are often separate approvals for the same well.
  • AFE cost lines usually separate tangible equipment from consumed services and materials.
  • A 10% overrun trigger is common language, but the actual threshold comes from the signed operating agreement.

Cost Categories and Supplemental AFEs

AFE cost categories matter after the job too. Tangible costs are physical items with lasting value, such as wellhead equipment, tubing, valves, tanks, meters, or a Christmas tree. Other costs are consumed during the job, such as rig time, drilling mud, cementing service, logging, and frac pumping.

A supplemental AFE is used when the original approval no longer fits the forecast cost or scope. The well may drill slower than planned, casing may need repair, or service costs may move. A good supplement says what changed, why it changed, and how much extra approval is needed.

Tip: A good AFE review starts with three plain questions: what work is being approved, what share does each partner owe, and what happens if the estimate is wrong?

AFE is also known as:

  • Authority for Expenditure: the full form used in many Canadian and US joint ventures.
  • Authorization for Expenditure: a common spelling variant.
  • Expenditure approval: plain internal approval wording.
  • Well program budget: a functional equivalent in some offshore and international ventures.
  • Supplemental AFE: a revised approval when the original AFE no longer covers cost or scope.

Related terms: authority for expenditure, working interest, operating agreement, completion, workover.

Frequently Asked Questions

Is an AFE the same as a drilling permit?

No. A permit or well licence is a regulatory approval. An AFE is a commercial approval between working-interest partners. A well may need both before work starts.

What happens if costs exceed the AFE?

If expected costs exceed the operating-agreement threshold, the operator circulates a supplemental AFE explaining the overrun and requesting additional approval.

Why AFE Matters in Oil and Gas

AFE matters because oil and gas projects spend money before the result is known. A clear AFE forces the operator to explain the job, the cost, the ownership split, the risk, and the rules before capital is committed. It will not make a poor well good, but it can prevent a difficult well from becoming a partner billing fight.

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