An authorization for expenditure is the cost estimate an operator circulates to its working interest partners before undertaking a well or a major operation. Partners approve or decline, and the AFE becomes the reference point against which actual costs billed on the joint interest statement are later compared.
Partners commonly check a joint interest bill against the AFE they approved. Being able to produce the relevant statement quickly is the difference between a two-minute call and a two-week dispute.
See alsoJoint interest billingCash call