Used Cooking Oil Theft in Denver: What Restaurants Need to Know
Used cooking oil theft in Denver is an increasing problem as organized criminal groups target restaurant grease containers across the U.S., including the Front Range. These thefts are driven by the growing value of used cooking oil as a feedstock for renewable diesel and sustainable aviation fuel (SAF).
Restaurants in Denver store used cooking oil on-site, often in unsecured outdoor containers, making them attractive targets for theft.
Federal Investigation Highlights the Scale of Used Cooking Oil Theft
In December 2025, federal authorities charged 13 individuals involved in a multistate used cooking oil theft ring operating across at least 10 states. According to court records:
- Used cooking oil was stolen from restaurants and commercial kitchens
- The oil was transported across state lines
- Warehouses in Nevada, Iowa, Tennessee, Alabama, and Ohio were used to resell and launder profits
The defendants face charges including racketeering conspiracy, interstate transportation of stolen goods, and money laundering.
Why Used Cooking Oil Is a Target in Denver and the Front Range
Why are thieves stealing used cooking oil in Denver?
Because used cooking oil has become a high-value commodity.
Key factors include:
- Rapid growth in renewable diesel and SAF production
- Strong federal and state fuel credit incentives
- Limited oversight of secondary oil brokers
At Aspen Oil, a Denver-area used cooking oil recycling company, we have seen how increased demand has turned grease theft into organized crime.
How Stolen Used Cooking Oil Enters the Renewable Fuel Market
Stolen used cooking oil becomes profitable when it is reintroduced into the regulated biofuel supply chain.
This typically occurs when:
- Brokers falsify or alter chain-of-custody documentation
- Stolen oil is blended with legitimate used cooking oil
- Buyers fail to verify sourcing before resale
Once laundered, the oil may generate credits from:
- The U.S. Environmental Protection Agency (EPA)
- The Internal Revenue Service (IRS)
- The California Air Resources Board (CARB)
The Impact of Used Cooking Oil Theft on Denver Restaurants
For Denver restaurants, grease theft can result in:
- Loss of recycling revenue
- Damaged or vandalized oil storage containers
- Increased safety risks for staff
- Disruption to scheduled grease pickup
Neighborhoods with dense restaurant clusters—such as downtown Denver, RiNo, LoDo, Capitol Hill, and Cherry Creek—are particularly vulnerable.
How Denver Restaurants Can Prevent Used Cooking Oil Theft
Denver restaurants can reduce risk by:
- Partnering only with licensed, insured used cooking oil recyclers
- Using locked or tamper-resistant grease containers
- Scheduling regular, documented oil pickups
- Reporting suspicious activity promptly
A reputable Denver-based recycler should be able to clearly explain where the oil goes, how it is tracked, and how compliance is maintained.
Why Transparency Matters in Denver Used Cooking Oil Recycling
Transparency protects:
- Local restaurants
- Ethical recyclers
- Renewable fuel producers
- The integrity of clean energy programs
At Aspen Oil, we maintain full cradle-to-grave documentation and strict compliance protocols. Our experience collecting used cooking oil throughout Denver and the Front Range informs our commitment to responsible recycling and regulatory compliance.
Our Commitment to Denver and the Front Range
As a Colorado-based used cooking oil recycling company serving Denver, we are committed to:
- Lawful, traceable used cooking oil collection
- Supporting Denver restaurants and commercial kitchens
- Protecting the renewable fuels supply chain
Used cooking oil plays an important role in clean energy production. Protecting its integrity ensures that Denver businesses—and the broader community—benefit from a safe and ethical recycling system.
Call Aspen Oil Recycling today.