MYRTLE BEACH, SC (WMBF) – Even with back-to-back weeks of increasing gas prices in Myrtle Beach, customers still aren’t feeling pain at the pumps. The average price of gas in the city is $2.78 per gallon after a 7-cent rise in the last week, according to GasBuddy. The previous week saw a 6.3-cent rise, GasBuddy said.