Exxon Mobil is laying off nearly 400 employees in Texas after a recent merger with fellow oil and gas company Pioneer Natural.

The Texas Workforce Commission, a state agency that oversees workforce development services, made the announcement in a Worker Adjustment and Retraining Notification or WARN notice. 

WARN notices are issued when mass layoffs are announced, according to the U.S. Department of Labor.

According to the notice, 397 employees at five different locations in Big Lake, Irving and Midland, Texas will be impacted. Layoffs will take place over the next two years between Dec. 31 and May 2026. 

The biggest impact will be at a store located on Hidden Ridge in Irving, about 16 miles northwest of Dallas.

When asked about the layoffs, Exxon Mobil said in a statement to USA TODAY Friday that impacted employees were offered “transition roles” and some turned the offers down.

“Our employment strategy has not changed,” the company said in the statement. “The success of this merger depends heavily on the retention of Pioneer’s talented workforce, and more than 1,900 Pioneer employees were offered jobs as part of the merger.”

Which locations will experience layoffs?

According to the announcement, employees at five different locations will be laid off between December 31 and May 2026. Layoffs will occur in waves.

Layoffs include:

777 Hidden Ridge in Irving - 376 employees total

• 103 employees on Dec. 31, 2024
• 46 employees on March 31, 2025
• 82 employees on June 30, 2025
• 28 employees on Sept. 30, 2025
• 11 employees on December 31, 2025
• 74 employees on March 31, 2026
• 32 employees on  May 3, 2026

2011 N Crescent in Midland - 3 employees total

• 3 employees on June 30, 2025

1921 US Highway 67 in Big Lake - 3 employees total

• 1 employee on Dec. 31, 2024
• 2 employees on March 31, 2025

4815 E. Highway 80 in Midland - 6 employees total

• 2 employees on Dec. 31, 2024
• 3 employees on June 30, 2025
• 1 employee on March 31, 2026

3617 N Big Spring St. in Midland - 9 employees total

• 4 employees  on Dec. 31, 2024
• 2 employees on March 31, 2025
• 1 employee on June 30, 2025
• 2 employees on March 31, 2026

Saleen Martin is a reporter on USA TODAY's NOW team. She is from Norfolk, Virginia – the 757. Follow her on Twitter at@SaleenMartin or email her at[email protected].