Fellies/kubejs/server_scripts/fellies/kubejs/base/recipetypes/thermal/machine/refinery.js

// events.listen('recipes', (event) => {
//     event.recipes.thermal.refinery(
//         [
//             item.of('emendatusenigmatica:bitumen_gem').chance(0.1),
//             fluid.of('thermal:heavy_oil', 40),
//             fluid.of('thermal:light_oil', 60)
//         ],
//         fluid.of('pneumaticcraft:oil', 100)
//     );
// });