Julia Collins, 40, and Ronald Holloran, 52, sat on top of the wooden tower in Habton Road, near the entrance to the hydraulic fracturing site after it was placed in the road at 6.40pm on Sunday, October 15 last year.
The pair refused to come down during the following morning and a specialist police team was called in to remove the tower safely, by erecting scaffolding around it.
The two protestors eventually dismounted the tower and were arrested at 5.40pm on the Monday.
Both Collins and Holloran were found guilty of wilfully obstructing the highway, at York Magistrates’ Court yesterday, following the first trial related to protest activity at Third Energy’s controversial Kirby Misperton fracking site.
They were each sentenced to a six-month conditional discharge and ordered to pay prosecution costs of £200 and a £20 victim surcharge.
Detective Constable Formosa, of North Yorkshire Police, said: “Police officers have been facilitating safe and peaceful protest for many months at Kirby Misperton. However, when the balance tips from peaceful protest to acts that go beyond what is reasonable, the public would rightly expect us to take action.”
Collins and Holloran, both from land near Kirby Misperton, were two of 85 arrests made by North Yorkshire Police related to protest activity at Kirby Misperton since September 2017.
Other trials are due to take place over the coming months.