I just did some maths on this period with average gold prices taken from:
https://www.macrotrends.net/1333/historical-gold-prices-100-year-chartbetween 2016-2018 they ran at a loss of $1.8M (80% ownership) yet paid $6.3M in taxes relating to Morila during the period to stay in good standing with the government according to Mystikal's post:
https://hotcopper.com.au/posts/50173033/single. 2017 specifically they earned about $950K.
I anticipate this is actually a tax refund given that according to mystikal's post Barrick overpaid taxes intentionally whilst sorting out the tax claim from the government expecting to receive a return of overpaid taxes.