Costco Southlake Gas Prices – State Highway 114
- Regular · today
- $3.639▼ −$0.020
- Premium · today
- $4.329▼ −$0.030
USD per gallon · Last updated September 30, 2026 · This station does not sell diesel
2601 E State Highway 114, Southlake, TX 76092-6668 · Open in Maps ↗
30-day range
where today sits- Regular$3.639 today · avg $3.571$3.359 low$3.749 high
- Premium$4.329 today · avg $4.251$4.089 low$4.399 high
Price history at Southlake
Last 30 days · USD per gallonView data as table
| Date | Regular | Premium |
|---|---|---|
| Sep 1 | $3.359 | $4.089 |
| Sep 2 | $3.359 | $4.089 |
| Sep 3 | $3.359 | $4.089 |
| Sep 4 | $3.359 | $4.089 |
| Sep 5 | $3.359 | $4.089 |
| Sep 6 | $3.359 | $4.089 |
| Sep 7 | $3.459 | $4.179 |
| Sep 8 | $3.459 | $4.179 |
| Sep 9 | $3.469 | $4.179 |
| Sep 10 | $3.469 | $4.179 |
| Sep 11 | $3.629 | $4.329 |
| Sep 12 | $3.629 | $4.329 |
| Sep 13 | $3.629 | $4.329 |
| Sep 14 | $3.629 | $4.329 |
| Sep 15 | $3.599 | $4.299 |
| Sep 16 | $3.589 | $4.269 |
| Sep 17 | $3.599 | $4.269 |
| Sep 18 | — | — |
| Sep 19 | $3.649 | $4.299 |
| Sep 20 | $3.649 | $4.299 |
| Sep 21 | $3.699 | $4.339 |
| Sep 22 | $3.699 | $4.319 |
| Sep 23 | $3.699 | $4.299 |
| Sep 24 | $3.699 | $4.279 |
| Sep 25 | $3.699 | $4.279 |
| Sep 26 | $3.749 | $4.319 |
| Sep 27 | $3.699 | $4.359 |
| Sep 28 | $3.699 | $4.399 |
| Sep 29 | $3.659 | $4.359 |
| Sep 30 | $3.639 | $4.329 |
Last updated September 30, 2026. Prices are collected once daily and can lag same-day changes at the pump.
Today’s price in context
At $3.639 for Regular, Southlake is tied for the 12th most expensive of 44 Costco gas stations in Texas today, in line with the Texas average of $3.619.
Lewisville, 9.4 mi away, is $0.010 cheaper.
- vs the US average
- $0.967 below, at $4.606
- Premium over Regular
- $0.690 — the Texas median is $0.570
- Over the last 30 days
- up $0.280
- Days the price changed
- 12 of 29 reported days
- Cheapest day in the window
- September 6, 2026, at $3.359
- 15-gallon fill
- $54.58, $4.20 more than at the 30-day low
- Nearest cheaper station
- Lewisville — 9.4 mi
Southlake is located at 2601 E State Highway 114, Southlake, TX 76092-6668, in Texas. The gas station sits in the warehouse parking lot and is open to Costco members, selling Regular and Premium — this location does not sell diesel. Gas station hours are 6 a.m. – 10 p.m. on weekdays, 6 a.m. – 8:30 p.m. on Saturdays and 6 a.m. – 7:30 p.m. on Sundays, in local time.
Station details
Southlake Gas station hours
- Mon–Fri
- 6 a.m. – 10 p.m.
- Saturday
- 6 a.m. – 8:30 p.m.
- Sunday
- 6 a.m. – 7:30 p.m.
Southlake Warehouse hours
- Mon–Fri
- 10 a.m. – 8:30 p.m.
- Saturday
- 9:30 a.m. – 7 p.m.
- Sunday
- 10 a.m. – 6 p.m.
Costco gas near Southlake
- 1LewisvilleLewisville, TX · 9.4 mi$3.629Regular
- 2N Fort WorthFort Worth, TX · 12.5 mi$3.649Regular
- 3W PlanoPlano, TX · 17.2 mi$3.579Regular
- 4ArlingtonArlington, TX · 17.8 mi$3.589Regular
- 5DallasDallas, TX · 20.0 mi$3.659Regular
Distances are straight-line. Prices across the border are shown in that country’s units (¢ per litre).
Cities near Southlake
- Costco gas prices Lewisville · TX · 9 mi$3.629
- Costco gas prices Arlington · TX · 18 mi$3.589
- Costco gas prices Fort Worth · TX · 18 mi$3.594
- Costco gas prices Dallas · TX · 20 mi$3.659
- Costco gas prices Plano · TX · 21 mi$3.574
- Costco gas prices Frisco · TX · 22 mi$3.549
- Costco gas prices Prosper · TX · 23 mi$3.579
- Costco gas prices Duncanville · TX · 25 mi$3.599
At this location
- Warehouse opened
- April 2001
- Warehouse phone
- (817) 749-2800
- Pumps open before the warehouse
- 4 hours on weekdays
Also at this warehouse: a food court, a pharmacy, an optical department and a tire center.
Costco publishes one number per warehouse; there is no separate line for the gas station.
Frequently asked questions
How much is gas at Costco Southlake today?
As of the September 30, 2026 reading: Regular $3.639 and Premium $4.329 per gallon. Prices are collected once a day, so the pump can differ.
What time does the Costco Southlake gas station open?
The pumps are open 6 a.m. – 10 p.m. weekdays, 6 a.m. – 8:30 p.m. Saturdays and 6 a.m. – 7:30 p.m. Sundays, in local time. The pumps open 4 hours before the warehouse on weekdays.
Does the Costco Southlake gas station sell diesel?
No — this station sells Regular and Premium, and has reported no diesel price in the last 30 days.
Is Costco Southlake cheaper than the average Costco station in Texas?
Not meaningfully: at $3.639, Regular here is level with the Texas Costco average of $3.619.
Where is the Costco Southlake gas station?
At 2601 E State Highway 114, Southlake, TX 76092-6668. It sits in the Costco warehouse parking lot and is open to members only.
Do you need a Costco membership to buy gas?
Yes — a Gold Star, Executive or Business membership card has to be scanned at the pump before it will dispense, though a Costco Shop Card also works for non-members.
What payment methods does the Costco gas station accept?
Visa, PIN debit and the Costco Shop Card; US Costco fuel pumps take no cash and no Mastercard, American Express or Discover.
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