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“Derivatives and Fair Value Measurements” to the accompanying unaudited condensed consolidated financial statements.
−Removed: As of March 31, 2020 , the Company had currency options outstanding with an aggregate notional amount of $550.0 million Australian dollars to hedge currency risk associated with anticipated Australian dollar expenditures over the six-month period ending September 30, 2020.
+Added: As of June 30, 2020, the Company had currency options outstanding with an aggregate notional amount of $613.0 million Australian dollars to hedge currency risk associated with anticipated Australian dollar expenditures over the six-month period ending December 31, 2020.
Assuming we had no foreign currency hedging instruments in place, our exposure in operating costs and expenses due to a $0.10 change in the Australian dollar/U.S.
−Removed: dollar exchange rate is approximately $145 to $155 million for the next twelve months.
+Added: dollar exchange rate is approximately $125 million for the next twelve months.
Based upon the Australian dollar/U.S.
−Removed: dollar exchange rate at March 31, 2020 , the currency option contracts outstanding at that date would not materially limit our net exposure to a $0.10 unfavorable change in the exchange rate for the next twelve months.
+Added: dollar exchange rate at June 30, 2020, the currency option contracts outstanding at that date would limit our net exposure to a $0.10 unfavorable change in the exchange rate to approximately $95 million for the next twelve months.
Other Non-Coal Trading Activities — Diesel Fuel Price Risk
1 unchanged sentence
Previously, we managed price risk of the diesel fuel used in our mining activities through the use of derivatives, primarily swaps.
−Removed: As of March 31, 2020 , we did not have any diesel fuel derivative instruments in place.
+Added: As of June 30, 2020, we did not have any diesel fuel derivative instruments in place.
We also manage the price risk of diesel fuel through the use of cost pass-through contacts with certain customers.
2 unchanged sentences
Compared sentence by sentence after normalising whitespace, quotation marks, case and digits, so re-formatting and restated figures do not read as changed language. Wording changes appear as one removal and one addition. The current filing and the prior one are authoritative.