| Published | Title | Open |
|---|---|---|
| 20 January 2021 | Lower operating profit in 2019 due to declining oil and gas extraction | Article |
| 12 December 2019 | Oil and gas extraction remain the dominant industry | Article |
| 22 December 2017 | Decline in operating profit for public non-financial corporations | Article |
| 20 December 2016 | Decline in oil and gas extraction leads to lower operating profit | Article |