Helix Exploration (HEX.L) spudded the Ollie #1 well at the Rudyard field of its Rudyard helium project in Montana, US.
The well will have an estimated total depth of 5,500 feet and will be drilled in 21 days, according to a Wednesday filing.
The helium exploration and development company expects Ollie #1 to be the fourth production well at Rudyard.