system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: Why have gas prices been dropping so sharply lately?
gpt
A big factor is that Saudi Arabia are keeping oil production high so allowing global prices to drop. This is in order to limit the competitiveness of further shale developments in the US and Canada. Oil reserves that are more difficult to access can't compete with the low prices so the Saudi's retain market share. They're expected to let it drop even further through 2015.