Source: The Conversation
Sarah Duffy Lecturer, School of Business, Western Sydney University
& Christopher Wright Professor of Organisational Studies, University of Sydney
The Great Australian Bight is home to a unique array of marine life. More than 85% of species in this remote stretch of rocky coastline are not found anywhere else in the world. It’s also potentially one of “Australia’s largest untapped oil reserves”, according to Norwegian energy company Equinor.

Equinor has proposed to drill a deepwater oil well 370km offshore to a depth of more than two kilometres in search of oil.

But a recent poll showed seven out of ten South Australian voters are against drilling in the Bight. And hundreds of people recently gathered on an Adelaide beach in protest.

Their main concerns include the lack of economic benefits for local communities, more fossil fuel investment, weak regulation and the potential for an oil spill, devastating our “Great Southern Reef”.

Drilling in the Great Australian Bight has occurred since the 1960s, but never as deep as what Equinor has proposed.

The Coalition government argues the project will improve energy security and bring money and jobs to the region. Labor announced recently that, if elected, it would commission a study on the consequences of a spill in the region.

So what’s the worst that could happen?
A spill could leak between 4.3 million barrels and 7.9 million barrels – the largest oil spill in history, according to estimates from the 2016 Worst Credible Discharge report, authored by Equinor and its former joint-venture partner, BP.

The Bight is a wild place, with violent storms and strong winds and waves. The geography is remote, unmonitored, largely unpopulated and lacks physical infrastructure to respond effectively to an oil spill.

In such an event, Equinor has said it would take 17 days to respond in a best-case scenario. The worst-case scenario is 39 days, and the goal scenario is 26 days.

In modelling for the worst-case scenario, the company predicts the oil from a spill could even reach from Albany in Western Australia to Port Macquarie in New South Wales.

How likely is an oil spill?
Reports from Norwegian regulators, compiled by Greenpeace, reveal Equinor had more than 50 safety and control breaches, including ten oil leaks, in the last three-and-a-half years. Each incident occurred in regulatory environments with stricter conditions than in Australia.

Our independent regulator, NOPSEMA, does not require inspections of wells during construction to ensure they meet safety standards.

This can be disastrous. For instance, the failure to properly construct the Montara Well in the North West Shelf caused the worst oil spill in Australian history. …