As of Friday morning, regular unleaded was $2.09 at a grocery store's pumps. (I'm still amazed how a grocery store generally sells gas at the cheapest price here in Texas. Of course, I still can't get over how gas prices in Austin are generally 10 cents or more lower than in Houston, the gas capital of the country).

By Friday night the price went to $2.15. On Sunday it went to $2.18.

This morning the same grocery store has regular unleaded for $2.27.

[edit: fixed typo]