AG Barr has extended its franchising deal with Rockstar for the next 15 years.

The soft drinks supplier has made and distributed Rockstar energy drinks in the UK under license from the US company since 2007.

“This amendment to our existing agreement will extend the current contract through to 2024, further cementing the strong relationship between the two companies and highlighting the future growth potential of the Rockstar brand in the UK,” the company said in a statement.

In recent months AG Barr added to the brand’s roster with Rockstar Pink, the first energy drink to target women, and Rockstar Xdurance, a new 500ml beverage “designed to prepare shoppers for extreme mental and physical performance”.