| Contributing firm | Author(s) |
| Australia | |
| Minter Ellison | Sam MacGibbon | Austria |
| STR Holding | Eduardo G Pereira | Canada |
| Norton Rose Canada LLP | Alan Harvie |
| Wylie Spicer | England |
| Akin Gump Strauss Hauer & Feld LLP | Anthony Martinez |
| Marc Hammerson | |
| Ashurst LLP | Nicholas Ross-McCall |
| Peter Roberts | |
| CMS Cameron McKenna LLP | Ben Holland |
| Ernst & Young | Robert Hodges |
| OSPAR Commission | Luisa Rodriguez Lucas |
| Reed Smith | Maricela Robles Garza |
| Nicholas Rock | |
| Standard Bank Plc | Charlie Houston |
| Stephenson Harwood | Simon Moore |
| University Of Aberdeen | John Paterson | Indonesia |
| Hiswara Bunjamin & Tanjung | Mira Fadhya | Malaysia |
| SKRINE | Faizah Jamaludin | Netherlands |
| Platform Brokers | Jan Groot | Nigeria |
| Aluko & Oyebode | Gbenga Oyebode | Norway |
| Arntzen de Besche Advokatfirma AS | Erlend Bakken |
| Karl Erik Aanjesen Navestad | |
| Merete Kristensen | Portugal |
| AVM Advogados | António Vicente Marques | Scotland |
| CMS Cameron McKenna (Scotland) LLP | Judith Aldersey-Williams |
| Decom North Sea | Brian Nixon |
| Marathon Oil Corp | Callum R Falconer |
| Robert Gordon University | Leon Moller | Singapore |
| Herbert Smith Freehills LLP | Jessica Raza | USA |
| Akin Gump Strauss Hauer & Feld LLP | Gabriel Joseph Procaccini |
| Steven Otillar |
