https://www.youtube.com/watch?v=DQ7fTSirNDs if you want to watch a video all about the situation, and history, instead of having to read up on it.

TLDR though: To keep the borders they've had for like 100ish years, it's a low population poorer country that is now rising in wealth due to a lot of oil in their exclusive economic zone thanks to the current borders. Their neighbor wants 2/3 of their territory, and control to the large supply of quality oil.

I would still watch the video though, was very informative.