Dozens of cars wrap around the the building at the H-E-B on Wurzbach as people wait to fill up on gas. Down the street at the Shell station, cars pour into the I-10 frontage lanes ensnaring traffic.
Pictures on Facebook, and other websites of queuing cars and stations without gas sent thousands of San Antonians scrambling to fill up.
"They've just gone paranoid. They think we're gonna run out of gas. I mean they're running out everywhere," says Daniel Hernandez, a local cook who has been waiting 10 minutes to fill up, and has another 20 before he fills up.
He says it was a call from his wife had him leaving work early.
"My wife told me the Walmart near our house on Bandera and Guilebeau, they ran out when she was next in line. The 7-Eleven ran out."
After traveling to two stations unsuccessfully Cindy Rareco waited another 30 minutes to finally fill up.
"It feels great," she says as the driver behind her glares, waiting.
She says she got a text from her daughter, who said places were running out of gas.
"I'm afraid that if I waited till four, five o'clock, maybe there wouldn't be any," she says.
Head of Communications for H-E-B, Dya Campos says Texans should not panic.
"The state of Texas will experience some short-term and sporadic gas outages throughout the state. Every gas retailer will be impacted," Campos says.
She says there is a temporary supply and demand issue stemming from the devastating flooding in and around Houston. People should expect continued outages.
"There will not be outages at every single gas location. If there's a gas outage at one location, I would try something down the street. I think it is gonna be pretty unpredictable and sporadic, but definitely not anything that is long term."
H-E-B and other providers are replenishing their supplies as quickly as they can she says.