Investigators said the suspect walked into the convenience store at the 5500 block of Lockwood on Aug. 1 at about 11:20 a.m.
Surveillance video captured the suspect walking into the store and robbing a woman.
The woman, who police said was in her 60s, was at the store attempting to pay a bill, holding $220 at the counter.
The suspect snatched the cash from her hands and took off in a 2012 to 2017 Hyundai Accent hatchback, according to police.
Police describe the suspect as a Black man who was last seen wearing a black Calvin Klein sweater with light-colored pants.
Authorities urge you to contact Crime Stoppers of Houston directly if you have any information related to this investigation.
Information leading to the charging and/or arrest of any felony suspects may result in a cash payment up to $5,000.
Tipsters must contact Crime Stoppers directly to remain anonymous and to be considered for a cash payment by calling 713-222-TIPS (8477), submitting an online tip, or through the Crime Stoppers mobile app.