ELI5: Explain Like I'm 5

2010s oil glut

Oil glut means that there is too much oil being produced compared to how much oil people want to buy and use. In the 2010s, oil prices went down because there was a lot of oil and people weren't buying enough of it. This happened because there were new technologies that allowed countries to get access to lots of oil all at once, and they made more oil than people were buying.