Market Pricing and Credits
Yellow grease and used cooking oil prices move with biofuel demand, freight, and the quality of the load. Fuel programs that pay for lower-carbon diesel are one reason refiners compete for used oil.
Grease.org publishes a historical pricing note and a cents-per-hundredweight comparison so buyers and sellers can read the public record. Those pages are references, not a live quote.
The historical pages show published figures from past markets. They are not an offer to buy or sell a load today, and they are not a rate card. A current conversation about a pickup starts on the schedule page.
Credits, contracts, and the number on an invoice
A renewable-fuel credit, such as a RIN under the United States biomass-based diesel rules, is earned by the fuel producer when qualifying fuel is made and blended or sold according to the program. The credit is not earned by the restaurant that fried the potatoes, and it is not a line a collector can invent on a grease invoice. The producer's credit is one reason the producer will pay more for a clean waste oil than for a fresh food oil that does not qualify, or more than for a dirty oil that fails the pathway. That premium shows up, indirectly, in what a collector can pay a kitchen. It shows up reduced by freight, by processing loss, and by the collector's own margin.
State low-carbon fuel programs add a second payment that follows the carbon score of the finished fuel. A lower score can be worth more. Used cooking oil often scores well in those models. The score still belongs to the fuel pathway, which includes transport and the plant. A kitchen that wants a share of that value has to be inside a contract that says so. A general claim that grease is low carbon does not move money.
Read a quote as a commodity contract. Name the product, the spec, the unit, the place, and the date. Dollars per hundredweight and cents per pound are easy to swap by mistake. Yellow grease, choice white grease, and brown grease are easy to swap by name. The charts on this site are historical pictures of those postings. They are not GREASE.ORG's offer. GREASE.ORG pays or charges under its own pickup agreement, which is about the oil and the service at the kitchen, not about selling a RIN.
If a broker offers a price that only works when a credit stays at today's level, ask what happens when the credit falls. Feedstock prices have moved hard when fuel policy moved. The historical series is the evidence. The protection is a spec and a unit written on the ticket, not a verbal tie to a credit you do not own.