This article documents the use and disclosure of derivatives in the Australian extractives industry. We find that derivatives are used by 23 per cent of our sample, with mitigation of commodity risk and foreign exchange risk being the most common purposes for which derivatives are used. The most common types of derivatives used in the sector for hedging purposes are forward rate agreements and options. Results indicate that derivative use is positively associated with financial risk and firm size. We also examine the relation between firm characteristics and the extent of financial instrument disclosure, using a disclosure index based on the additional requirements in IFRS 7 Financial Instruments: Disclosures. Empirical results reveal that large firms with higher leverage, which use derivatives, and are audited by a Big 4 auditor provide more extensive disclosure of financial instruments.