Offshore Northern Seas or ONS as it's more commonly known in Stavanger is one of my personal favourite events in the calendar. Occurring every two years, ONS is a must attend for anyone working in the oil industry in Europe and beyond. The last time I visited I could not help but be impressed by the spirit of innovation and the positive buzz around Stavanger for the duration of the show. Indeed, it is so popular that many locals leave the city for vacations and rent out their houses to visiting oil professionals in order to accommodate all the exhibitors and delegates who travel to the city for the show.

This year's event does not show any signs of being hit by the depressed oil price with 1,392 exhibitors confirmed and an additional conference arena being added this year. So why is it that the world's oil and gas industry home in on this event as a must attend in the calendar? Here are four reasons it should be on your agenda.