[[File:Refinery_Plain.png|400px500px]]

The Refinery building converts refines Crude Oil [[File:icon oil.png|16px|link=material]] to into barrels of Diesel /Chemicals [[File:icon diesel.png|16px|link=material]]. Crude Oil [[File:icon oil.png|16px|link=material]] is produced by '''[[Oil Wells]] ''' and needs to be transported to a Refinery in order to be converted into Diesel [[File:icon diesel.png|16px|link=material]]. This is then mainly used to produce Diesel Tokens [[File:token diesel.png|16px|link=token]]at the '''[[Factory]]'''. Also, Diesel [[File:icon diesel. png|16px|link=material]] is used as primary fuel in [[Oil Power Station|'''Oil Power Plant''']] and as secondary fuel at '''[[Steelworks]]'''. Furthermore, diesel can be converted into chemical fertilizers at the '''[[Farm]]''' if you have ''Chemical Fertilizers'' extension built. <br/> The Refinery is an [[Ages#EraIII|'''Era III ''']] building, therefore when transitioning from the [[Ages#EraII|'''Steam Era ''']] to the [[Ages#EraIII|'''Early Diesel Era ''']] several Refineries will appear in random locations across the map.

The base unit of the Refinery consumes 2 Crude Oil [[File:icon oil.png|16px|link=material]] and produces 1 barrel pf Diesel [[File:icon diesel.png|16px|link=material]] every [[Game tick]]. There are three extensions that can be added to the Refinery, two of which increase the conversion of Crude Oil [[File:icon oil.png|16px|link=material]] to Diesel[[File:icon diesel.png|16px|link=material]]. The third one, the ''Propane plant '' extension adds a new process to the Refinery that converts Crude Oil [[File:icon oil.png|16px|16px|link=Material]] into Goods [[File:icon goods.png|16px|link=Material]] and Money Diesel tokens [[File:token moneydiesel.png|16px|link=Token]]. With all extensions added to a single Refinery, it will consume 8 Crude Oil [[File:icon oil.png|16px|16px|link=Material]] while producing an average of 6 Diesel [[File:icon diesel.png|16px|link=Material]], 0.67 Goods [[File:icon goods.png|16px|link=Material]] and 0.67 Money 33 Diesel tokens [[File:token moneydiesel.png|16px|link=Token]] every '''[[Game tick]]'''.<br/>Some of the buildings can be connected to the electrical network [[File:E_energy.png| Tick16px|link=Electrification]]from [[Ages#EraV|'''Era 5''']] onward, which will further increase their production. The amount of electrification production bonus (if applicable) is shown in the brackets at each building. 

{| class="wikitable transformable " style=text-align:center!Image!Name!Consumes!Produces![[Game_tick|Ticks]] to<br/>complete!Bonus<br/>ouput!Bonus distance<br/>(tiles)!Building<br/>dimension (tiles)|-| [[File:Refinery.png|x120px]]| Refinery| 2 [[File:icon oil.png|16px|link=Material]]| 1 [[File:icon diesel.png|16px|link=Material]] + (1 [[File:icon diesel.png|16px|link=Material]])[[File:Refinery_Plain_DetailsE_energy.png|16px|link=Electrification]]| 1| 50| 2x3|} 

{| class="wikitabletransformable "style=text-align:center! Image! ExtensionName!Cost! Consumes! Produces! No. of [[Game_tick|Ticks ]] to Complete<br/>complete! Building Tile Sizedimension<br/>(tiles)!Unlocked<br/>at epoch

| [[File:Refinery_Propane_plantPropane_plant.png|200pxx120px]]| Propane plant| 500 [[File:Refinery_Propane_plant_Detailstoken money.png|16px|link=Token]]| 3 Crude Oil [[File:icon oil.png|16px|link=Material]]| 2 Goods [[File:icon goods.png|16px|link=Material]] + 1 Diesel Token [[File:token diesel.png|16px|link=Token]]| 3 Ticks| 2x11x2| -

| [[File:Refinery_Additional_fractionation_equipmentAdditional_fractionation_equipment.png|200pxx120px]]| Additional fractionation equipment| 250 [[File:Refinery_Additional_fractionation_equipment_Detailstoken money.png|16px|link=Token]]<br/>30 [[File:token iron.png|16px|link=Token]]| 3 Crude Oil [[File:icon oil.png|16px|link=Material]]| 2 Diesel 3 [[File:icon diesel.png|16px|link=Material]]| 1 Tick

| [[File:Refinery_Research_laboratoryResearch_laboratory.png|200pxx120px]]| Research laboratory| 100 [[File:Refinery_Research_laboratory_Detailstoken diesel.png|16px|link=Token]]| 2 Crude Oil [[File:icon oil.png|16px|link=Material]]| 2 Diesel [[File:icon diesel.png|16px|link=Material]] + (2 [[File:icon diesel.png|16px|link=Material]])[[File:E_energy.png|16px|link=Electrification]]| 1 Tick| 2x11x2| -