Chevron revealed on Tuesday it had signed a domestic gas sales agreement with Alinta for the supply of 20 petajoules per year over a seven-year period, starting 2020.

"We are committed to being a safe, competitive and reliable supplier of domestic gas for Western Australia’s future energy needs and pleased to strengthen our long-standing relationship with Alinta Energy,” Chevron Australia managing director Roy Krzywosinski said.

“This