As reported by the AAA Texas Weekend Gas Watch, the average gas price across Texas was $2.82 per gallon for regular unleaded fuel on Thursday. This price is five cents less compared to last week and 41 cents less compared to the same day last year.

For years, Texas drillers were riding high, helping make the U.S. the top oil producer in the world. They backed Trump for cutting red tape and boosting oil-friendly policies. But now? His trade war and new tariffs are rattling the market. Oil prices have dropped to around $57 a barrel—not nearly enough for many companies to turn a profit.

The angry mutterings at the Permian Basin Petroleum Association’s “Spring Swing” golf tournament this week weren’t all about missed putts or lost balls. The Texas oilmen on the fairways had a more serious concern: The president they helped elect was tanking oil prices.