A lot longer than you might think! To make hydrocarbons, you need organic material and we know that there was marine life dating back 570 million years ago in the Cambrian period. Most of our hydrocarbon's origins do not go back this far, but there are many fields that are from the Paleozoic era (older than 250 million years ago). If organics were deposited 250 million years ago, and all conditions were right, it might take another 20 million years to transform these organics into hydrocarbons. See related link.
Forever
how long has oil been used for
how long has deforestation been around
As long as guns have been around.
how long has the london eye been around for
As long as So Random has been around.
If your lifters are sticking you can try some oil additive like Marvel Mystery oil Marvel Mystery oil has been around for a long time and it works pritty good.
They have always been around
boner
how long have boxing been around?
234 years fool
As long as there has been an ocean. Some pollution happens without the assistance of mankind. That includes volcanoes that erupt underwater, and oil deposits that leak out of the ground under or near water.