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Financial Risk Management Activities
6 Months Ended
Jun. 30, 2023
Derivative Instruments and Hedging Activities Disclosure [Abstract]  
Financial Risk Management Activities
13.  Financial Risk Management Activities
In the normal course of our business, we are exposed to commodity risks related to changes in the prices of crude oil and natural gas, as well as changes in interest rates and foreign currency values. Financial risk management activities include transactions designed to reduce risk in the selling prices of crude oil or natural gas we produce or reduce our exposure to foreign currency or interest rate movements. Generally, futures, swaps or option strategies may be used to fix the forward selling price, or establish a floor price or a range banded with a floor and ceiling price, for a portion of our crude oil or natural gas production. Such strategies are subject to certain limitations under the Merger Agreement. Forward contracts or swaps may also be used to purchase certain currencies in which we conduct business with the intent of reducing exposure to foreign currency fluctuations. At June 30, 2024, these forward contracts and swaps relate to the British Pound and Malaysian Ringgit. Interest rate swaps may be used to convert interest payments on certain long-term debt from fixed to floating rates.
The notional amounts of outstanding financial risk management derivative contracts were as follows:
 June 30,
2024
December 31,
2023
 (In millions)
Foreign exchange forwards / swaps$232 $226 
Interest rate swaps$100 $100 
Derivative contracts designated as hedging instruments:
Crude oil derivatives designated as cash flow hedges:  Crude oil hedging contracts decreased Sales and other operating revenues by $52 million and $86 million in the three and six months ended June 30, 2023, respectively. There were no open crude oil hedging contracts at June 30, 2024 or December 31, 2023, or during the three and six months ended June 30, 2024.
Interest rate swaps designated as fair value hedges: At June 30, 2024 and December 31, 2023, we had interest rate swaps with gross notional amounts totaling $100 million, which were designated as fair value hedges and relate to debt where we have converted interest payments from fixed to floating rates. Changes in the fair value of interest rate swaps and the hedged fixed-rate debt are recorded in Interest expense in the Statement of Consolidated Income. The fair value of our interest rate swaps was nil at June 30, 2024 and a liability of $2 million at December 31, 2023.
Derivative contracts not designated as hedging instruments:
Foreign exchange:  Foreign exchange gains and losses, which are reported in Other, net in Revenues and non-operating income in the Statement of Consolidated Income, were gains of $1 million and losses of $1 million in the three and six months ended June 30, 2024, respectively, compared with losses of $2 million and nil in the three and six months ended June 30, 2023, respectively.  A component of foreign exchange gains and losses is the result of foreign exchange derivative contracts that are not designated as hedges, which amounted to nil and net gains of $5 million in the three and six months ended June 30, 2024, respectively, compared to net losses of nil and $2 million in the three and six months ended June 30, 2023, respectively. The fair value of our foreign exchange forwards and swaps was nil at June 30, 2024 and a liability of $6 million at December 31, 2023.
Fair Value Measurement:  
At June 30, 2024, our total long-term debt, which was substantially comprised of fixed-rate debt instruments, had a carrying value of $8,865 million and a fair value of $9,030 million based on Level 2 inputs in the fair value measurement hierarchy. We also have short-term financial instruments, primarily cash equivalents, accounts receivable and accounts payable, for which the carrying value approximated fair value at June 30, 2024 and December 31, 2023.