Billing & Office Operations Support

Since 1948, Al Warren Oil Company has been a trusted leader in fuel, lubricants, DEF, and petroleum-related services throughout Illinois, Indiana, Wisconsin, and beyond. As a family-owned and operated company, we’ve built our reputation on exceptional customer service, dependable delivery, and lasting relationships with both our customers and employees.

While our drivers and operations teams keep our customers moving, our office professionals are the backbone of everything we do. Their attention to detail, organization, and commitment to excellence ensure every order is processed accurately and every customer receives outstanding service.

We’re looking for a motivated, detail-oriented Clerical & Administrative Support Specialist to join our Bensenville team. If you enjoy working with numbers, solving problems, staying organized, and supporting a fast-paced business, we’d love to meet you

• Process and generate customer invoices for fuel, lubricant, and DEF deliveries with a high level of accuracy.
• Verify pricing, gallons, product codes, and delivery documentation before billing.
• Assist with resolving billing discrepancies by coordinating with sales, operations, and accounting.
• Maintain organized billing records and supporting documentation.
• Support Accounts Receivable with invoice copies, customer inquiries, and payment follow-ups as needed.
• Enter supplier invoices and verify costs when required.

• Accurately enter fuel and lubricant orders into internal systems.
• Maintain and update customer account information, tax exemptions, and pricing structures.
• Answer and direct incoming phone calls professionally.
• Assist walk-in drivers, customers, and staff at the service window.
• File, scan, copy, and maintain organized digital and physical records.
• Communicate internally with sales and operations teams regarding order details or corrections.
• Provide general office support to ensure smooth daily operations.

• Previous experience in clerical, administrative, billing, or office support roles.
• Strong attention to detail and ability to work with numbers accurately.
• Comfortable using Microsoft Office (Excel, Outlook, Word).
• Experience with accounting software or ERP systems is a plus.
• Ability to prioritize tasks and meet deadlines in a fast-paced environment.
• Strong communication skills and a professional, customer-focused attitude.
• Dependable, organized, and able to work independently while supporting a team.