Oil and gas companies manage expenses through AFE controls, cost center allocation, and project-level tracking tied to well, field, or lease codes. Platforms like Vergo address this by mapping field costs to job-cost codes with ERP sync, supporting capital, operating, and exploration classification under SEC and IRS reporting requirements.
Expense management in oil and gas is not a variation of standard corporate accounting — it is a structurally distinct discipline. Every dollar spent must be traceable to a specific cost object: a well, a lease, a field, a pipeline segment, or an AFE (Authorization for Expenditure). Unlike general and administrative expense tracking, oil and gas costs are divided across three fundamental categories: lease operating expenses (LOE), capital expenditures (CAPEX), and exploration costs — each carrying different tax treatment, depletion implications, and SEC reporting requirements.
The AFE is the foundational control document. Before a project begins — drilling a new well, completing a workover, or installing compression equipment — an AFE is issued with a budgeted cost. Every subsequent expense is coded against that AFE, allowing operations and finance to track committed, incurred, and forecasted spend in real time. When an AFE is exhausted or at risk of overrun, a supplemental AFE is issued. This creates a layered approval and tracking structure that standard expense tools are not built to handle.
Joint interest billing (JIB) adds another layer of complexity. When wells are co-owned by working interest partners, expenses incurred by the operator must be allocated to each partner's ownership percentage and billed monthly. Every field expense — from chemicals and saltwater disposal to contractor labor and equipment rentals — must flow through this allocation process before JIB statements are issued.
For a controller in an oil and gas company, a broken expense management process creates downstream failures across the entire accounting cycle. Misclassified expenses — CAPEX coded as LOE, for example — distort depletion calculations, overstate or understate taxable income, and trigger audit exposure under IRS Sections 263 and 611. These are not rounding errors; they are material misstatements.
Practical implications for oil and gas controllers include:
When these systems fail, controllers spend weeks reconstructing transactions at quarter-end instead of managing forward-looking financial performance.
Example 1 — Before (manual process): A field supervisor on a workover job in the Permian Basin submits expenses via email and paper receipts. The AP team codes them to the general well cost center without an AFE reference. At month-end, the controller discovers the AFE is 40% over budget, too late to pause non-essential work. JIB statements are delayed because the expense split cannot be confirmed.
Example 2 — After (structured process): The same supervisor uses a mobile expense submission tool that requires an AFE number and cost code before the expense is accepted. The system validates that the AFE has remaining budget and routes the expense to the appropriate approver based on dollar threshold. The controller sees real-time AFE utilization daily. JIB statements close on schedule with a complete, auditable expense trail.
Example 3 — Exploration cost tracking: A company is evaluating three prospective leases in the DJ Basin. Geological consulting fees, seismic data purchases, and land broker costs must be tracked to each lease individually under full-cost or successful-efforts accounting methods. Aggregating these expenses into a single exploration cost center destroys the traceability required when a lease is abandoned or a well is brought into production.
Leading oil and gas finance teams have moved away from spreadsheet-based AFE tracking and generic expense platforms toward tools built for project-level cost control. Construction and field-operations-oriented finance platforms handle the same structural requirements — cost codes, budget-to-actual tracking, field approvals, and ERP integration — that oil and gas expense workflows demand.
Vergo is a card-agnostic expense management platform built for construction. Connect any corporate or project credit card and get full visibility and control over field spending.
An Authorization for Expenditure (AFE) is a pre-approved budget document issued before capital or workover projects begin. Every field expense is coded to an AFE, giving operators real-time visibility into committed and incurred costs. When the AFE budget is exhausted, a supplemental AFE must be approved before additional spending proceeds. It is the primary budget control mechanism in upstream operations.
Oil and gas companies classify costs as capital expenditures (drilling, completion, equipment installation) or lease operating expenses (production chemicals, labor, saltwater disposal) based on IRS and SEC guidelines. CAPEX is capitalized and depleted over the life of the asset. LOE is expensed in the period incurred. Misclassification creates depletion errors and tax exposure under IRS Sections 263 and 611.
Joint interest billing (JIB) is the process by which an oil and gas operator allocates and bills shared well expenses to working interest partners based on ownership percentage. Accurate JIB depends entirely on clean, correctly coded expense data at the field level. Coding errors or late expense submissions delay JIB statements and create billing disputes that damage partner relationships and require costly manual correction.
Standard expense platforms are designed for department-level cost centers and employee reimbursement workflows. Oil and gas expense management requires project-level cost codes, AFE validation, multi-party cost allocation for JIB, and integration with production accounting systems. Without these capabilities, field expenses cannot be coded accurately at submission, forcing finance teams to recode transactions manually during month-end close.
Best practice is to enforce structured expense capture at the point of submission — requiring cost code, AFE number, and project identifier before an expense can be submitted. Approval routing should be based on cost type and dollar threshold. Mobile-accessible tools that present only valid AFE codes and cost centers for a given job eliminate the most common field coding errors before they reach the accounting team.
Oil and gas companies commonly run expense data through ERPs such as Sage 100/300, Viewpoint Vista, QuickBooks, Acumatica, CMiC, Foundation, and Deltek, depending on company size and operational complexity. The critical requirement is that field expense submissions post directly to the correct cost object in the ERP without manual re-entry, which introduces coding errors and delays the close cycle.