What We Do

Suppliers

As a leader in refining and marketing, we depend on strong supplier partnerships to support our operations and deliver quality fuels and petroleum products.

Want to work with CITGO?

Learn how to become part of our supplier network below.

Supplier Expectations

We require all our suppliers, vendors, and contractors to uphold the highest standards of compliance with anti-corruption, safety, and all CITGO policies. Compliance with all applicable laws and contractual obligations, including avoidance of conflicts of interest, is mandatory for doing business with us.

View FAQs

Code of Conduct

The CITGO Way

We lead with safety, integrity, respect, accountability, and care. Our Code of Conduct and Third-Party Expectations uphold these values in every decision, action, and partnership, ensuring an ethical and responsible business approach at every level.

Explore our Code of Conduct Review our Third-Party Expectations

California Transparency in Supply Chain Policy

In compliance with California’s Transparency in Supply Chain Act, we actively work to ensure that our suppliers uphold human rights, prohibit slavery and human trafficking, and meet high standards for labor and environmental practices.

This policy outlines our efforts to promote responsible sourcing and the measures we take to maintain a transparent, ethical supply chain.

Download the California Transparency in Supply Chain Policy

Become A

CITGO Supplier

Register as a CITGO Hydrocarbon Business Commercial Counterparty

Hydrocarbon suppliers include companies that provide crude oil, refined petroleum products, natural gas, petrochemicals, or related logistics and storage services.

By registering as a prospective CITGO commercial counterparty, you enable us to screen your organization for potential opportunities as a supplier or customer of hydrocarbons and related services. If you meet our initial criteria, we’ll share your information with the relevant CITGO business teams to ensure your opportunities are considered.

Register as a CITGO Non-Hydrocarbon Supplier

Non-hydrocarbon suppliers include businesses that provide products and services such as office supplies, IT equipment, construction materials, safety gear, catering, and professional services.

Registering as a CITGO supplier gives you the opportunity to be considered in our competitive bidding process. While this helps us conduct fair due diligence, it does not guarantee business with CITGO.

ISNetworld Registration

To be considered for doing business with CITGO, suppliers must meet CITGO standard qualification requirements, including technical, operational, and safety standards.

If you provide services in process-related areas or perform work that is potentially hazardous or requires a safe work permit, you must meet CITGO’s safety and insurance requirements.

CITGO uses ISNetworld, a third-party company, to verify insurance and safety requirements for a nominal fee. You will be required to provide insurance, safety, health, and security information to our authorized agent, including:

Standard Supplier Questionnaire
Insurance Certificates (e.g. General Liability, Employee Liability, Automobile Liability, Workers Compensation)
ccupational Safety and Health Administration (OSHA) logs for the last 3 years
Employee Modifier Rate (EMR) letters for the last 3 years
Operator Qualification Report (OQR), if applicable