RAWLINS, Wyo. (AP) — The Sinclair Oil refinery east of Rawlins is facing more safety violation citations and nearly $260,000 a fines.

The Wyoming Occupational Safety and Health Administration issued citations to the refinery at Sinclair in January for three incidents occurring last August. Some of the violations were categorized as "serious" along with six repeat violations.

A statement released by Sinclair Oil says the company is working urgently to make safety improvement and has hired five additional occupational safety professionals to address safety concerns.

Hayley Douglass of the Wyoming Department of Workforce Services tells the Associated Press that the citations resulted from a formal complaint made by an individual as well as a follow-up from earlier incidents.

The refinery has had numerous problems, including several fires last year.