Green Fuels Operating · owns and operates NZET clean refineries
A refinery your county can actually say YES to.
From American crude to American fuel — refined where the oil is. NZET separates crude without boiling it, so the flaring, benzene and particulates that stopped fifty years of refinery projects are never created. It permits on ordinary industrial land and is built for roughly half the capital cost of a plant that boils its oil.
Under construction in Duncan, Oklahoma · NZET process under U.S. Patent 11,214,743, owned by Clean Refineries Inc.
On a phone: tap any slide to open it full-screen. Slides open sideways so the small type is readable — or turn your phone to landscape.
The fuel America is short of
Why new capacity has to be builtThe capacity is going the wrong way
America is losing refineries, not building them.
The easiest answer — expand the plants we already own — is not available, because the companies that own them are closing them. New replacement capacity has to be built.
Recent U.S. refinery closures
Net capacity reflects closures and expansions. Crude-processing capacity is not finished-diesel production.
Source: EIA annual operable atmospheric crude-distillation capacity series.
The technology that changes where a refinery can go
NZET clean refiningWhy this technology changes the equation
The proposed separation process — and the evidence required at each installation.
Conventional refining
Distinct process stages
FlaringBenzeneSulfur oxidesParticulates
Source: EIA, “The refining process.”
GFO’s hydrocarbon separation process
- Low-temperature Low-pressure Atomization, Evaporation and Condensing of Fuels
- Vapor recovery in a closed loop for zero-toxic-emissons.
- Heater NOx target below 7 ppm; low-emission fast-track permits.
- Modular fabrication and containerized assembly options.
- About half the capital cost of conventional refineries that pollute.
- Small Refinery Exemption eligibility for <75,000 barrels per day.
Interactive companion
Explore the crude, state by state.
Select a state, search a basin, or filter for profiles describing heavy crude. Open a profile for its named crude streams, source quality ranges and metro-market estimates.
| State / area | Named streams in source | API | All-grade output barrels/day |
|---|
State-level screening, not a field inventory. The “Heavy” filter follows the supplied descriptions. API and sulfur ranges are retained as provided. Production figures are total crude, all grades—not heavy-crude volumes.
The profiles and source screening labels are carried over from the source dataset. Dates and estimates are not a live data feed. A missing refinery-capacity value is treated as missing information, not as zero.
Optional planning tools
Screening arithmetic for a candidate site, kept separate from the slides.
Blend-gravity illustration
Adjust the original tool’s light-crude share and blendstock selection.
Original linear API approximation
This retains the uploaded calculator’s arithmetic: (42 × light share) + (selected API × remaining share). It is an illustration, not a tested assay. API gravity alone does not establish diesel yield.
Freight-cost illustration
Change the supplied cost assumptions to inspect the original two-leg calculation.
Illustrative freight total
Default rates and equal-gallon allocation are retained from the uploaded tool. This is not a refinery-yield model or a guaranteed pump-price discount; local processing and distribution still have their own costs.
A distributed network, not another coastal mega-plant
Put the refinery where the crude is.
Build inland, near the crude and the customers
For a century refineries clustered on the Gulf Coast to meet tankers of imported crude. Today the oil is inland — and so are the farms and fleets burning the diesel.
Stop paying the two-way freight
Hauling crude a thousand miles to the coast and the finished fuel back is a transportation cost that lands on every gallon sold in the middle of the country.
More competitors, more resilient regional supply
A region served by one distant refinery has no cushion. Regional capacity adds buyers for local crude and sellers into the local fuel market.
Evidence, not promises
Public support should go to projects with verified emissions, tested yields and documented local market benefit. That is the standard GFO asks to be held to.
Proof, not a rendering
Duncan, Oklahoma
Green Fuels Operating broke ground on May 29, 2026 on a brownfield site that last refined product in 1983. It made aviation fuel from the 1920s until 1947, then general refined products until Tosco closed it. ConocoPhillips completed the required remediation, Stephens County took ownership in 2004, and the Oklahoma Department of Environmental Quality certified the property for brownfield redevelopment. The plant will produce asphalt, naphtha, kerosene, diesel, gasoline and aviation fuel.
A county site, a dead refinery footprint, and a plant that could be permitted on it. That is the whole argument for regional clean refining, built rather than described.
For states, counties, tribes, ports and landowners
Is your site a candidate?
Green Fuels Operating develops and operates the plants. If you hold or govern land that fits, the conversation starts with four questions.
Contact
Build the clean refineries America needs.
Green Fuels Operating develops and operates NZET clean refineries — sited where the crude is, permitted on ordinary industrial land, and built for roughly half the capital cost of a plant that boils its oil.
Talk to a person, not a form
Derek Williamson
Green Fuels Operating