It happened Tuesday night just after nine o'clock at 11701 Interstate 30.
Police say the men held up an Exxon station after one of them walked in and jumped onto the counter.
The woman working the register told officers the man pointed a handgun at her and demanded that she empty the register.
She said he then made her crawl to the office and demanded that she open the safe. When the clerk told the suspect she had no key to the safe, he and the other suspect left the store.