Risk-management Activities - We are sensitive to changes in natural gas, NGLs and crude oil prices, principally as a result of contractual terms under which these commodities are processed, purchased and sold. As a result of the Magellan Acquisition, we are also sensitive to changes in Refined Products prices. We are also subject to the risk of interest-rate fluctuation in the normal course of business. We use physical-forward purchases and sales and financial derivatives to secure a certain price for a

portion of our natural gas, NGLs, Refined Products, condensate and crude oil purchases and sales; to reduce our exposure to commodity price and interest-rate fluctuations; and to achieve more predictable cash flows. Additionally, we may use physical-forward purchases and financial derivatives to reduce commodity price risk associated with power and natural gas used to operate our facilities. We follow established policies and procedures to assess risk and approve, monitor and report our risk-management activities. We have not used these instruments for trading purposes.

Commodity price risk - Commodity price risk refers to the risk of loss in cash flows and future earnings arising from adverse changes in the price of natural gas, NGLs, Refined Products, condensate and crude oil. We may use the following commodity derivative instruments to reduce the near-term commodity price risk associated with a portion of our forecasted purchases and sales of these commodities:

•Forward contracts - Nonstandardized commitments between two parties to purchase or sell natural gas, NGLs, Refined Products, condensate and crude oil for future physical delivery. These contracts are typically nontransferable and can only be canceled with the consent of both parties;

•Swaps - Exchange of one or more payments based on the value of one or more commodities. These instruments transfer the financial risk associated with a future change in value between the counterparties of the transaction, without also conveying ownership interest in the asset or liability;

•Options - Contractual agreements that give the holder the right, but not the obligation, to buy or sell a fixed quantity of a commodity at a fixed price within a specified period of time. Options may either be standardized and exchange-traded or customized and nonexchange-traded; and

In our Natural Gas Gathering and Processing segment, we are exposed to commodity price risk as a result of retaining a portion of the commodity sales proceeds associated with our fee with POP contracts. Under certain fee with POP contracts, our fees and POP percentage may increase or decrease if production volumes, delivery pressures or commodity prices change relative to specified thresholds. We also are exposed to basis risk between the various production and market locations where we buy and sell commodities. As part of our hedging strategy, we use the previously described commodity derivative financial instruments and physical-forward contracts to reduce the impact of price fluctuations related to natural gas, NGLs and condensate.

In our Natural Gas Liquids segment, we are primarily exposed to commodity price risk resulting from the relative values of the various Purity NGLs to each other, the value of NGLs in storage and the relative value of NGLs to natural gas. We are also exposed to location price differential risk as a result of the relative value of NGL purchases at one location and sales at another location, primarily related to our optimization and marketing business. As part of our hedging strategy, we utilize physical-forward contracts and commodity derivative financial instruments to reduce the impact of price fluctuations related to NGLs.

In our Natural Gas Pipelines segment, we are primarily exposed to commodity price risk on our intrastate pipelines because they consume natural gas in operations and retain natural gas from our customers for operations or as part of our fee for compression services provided. When the amount consumed in operations differs from the amount provided by our customers, our pipelines must buy or sell natural gas, or store or use natural gas inventory, which can expose this segment to commodity price risk depending on the regulatory treatment for this activity. To the extent that commodity price risk in our Natural Gas Pipelines segment is not mitigated by fuel cost-recovery mechanisms, we may use physical-forward sales or purchases to reduce the impact of natural gas price fluctuations. At December 31, 2023 and 2022, there were no financial derivative instruments with respect to our natural gas pipeline operations.

In our Refined Products and Crude segment, we are primarily exposed to commodity price risk from our liquids blending and marketing activities, as well as product retained during the operations of our pipelines and terminals. As part of our hedging strategy, we use the previously described commodity derivative financial instruments and physical-forward contracts to reduce the impact of price fluctuations related to NGLs, Refined Products and crude oil.

Interest-rate risk - We may manage interest-rate risk through the use of fixed-rate debt, floating-rate debt, Treasury locks and interest-rate swaps. Treasury locks are agreements to pay the difference between the benchmark Treasury rate and the rate that is designated in the terms of the agreement. In the second quarter of 2023, we entered into $1.1 billion of Treasury locks to hedge the variability of interest payments on a portion of our forecasted debt issuances. In the third quarter of 2023, we settled all of our $1.1 billion Treasury locks related to our underwritten public offering of $5.25 billion senior unsecured notes

associated with the Magellan Acquisition resulting in a gain of $43 million, which is included in accumulated other comprehensive loss and amortized into interest expense over the term of the related debt. All of our Treasury locks were designated as cash flow hedges.

Interest-rate swaps are agreements to exchange interest payments at some future point based on specified notional amounts. In 2023, we settled all of our $0.4 billion forward-starting interest-rate swaps related to our underwritten public offerings of $5.25 billion senior unsecured notes associated with the Magellan Acquisition resulting in a gain of $44 million, which is included in accumulated other comprehensive loss and amortized into interest expense over the term of the related debt. All of our interest-rate swaps were designated as cash flow hedges.

Fair Values of Derivative Instruments - See Note A for a discussion of the inputs associated with our fair value measurements. The following table sets forth the fair values of our derivative instruments presented on a gross basis as of the dates indicated:


		December 31, 2023				December 31, 2022
	Location in our Consolidated Balance Sheets	Assets		(Liabilities)		Assets		(Liabilities)
		(Millions of dollars)
Derivatives designated as hedging instruments
Commodity contracts (a)	Other current assets	$	163	$	(78)	$	160	$	(123)
	Other assets	—		—		6		(1)
Interest-rate contracts	Other current assets	—		—		11		—

Total derivatives designated as hedging instruments		163		(78)		177		(124)
Derivatives not designated as hedging instruments
Commodity contracts (a)	Other current assets	14		(6)		1		(1)
Total derivatives not designated as hedging instruments		14		(6)		1		(1)
Total derivatives		$	177	$	(84)	$	178	$	(125)

(a) - Derivative assets and liabilities are presented in our Consolidated Balance Sheets on a net basis when a legally enforceable master-netting arrangement exists between the counterparty to a derivative contract and us.


		December 31, 2023		December 31, 2022
	Contract Type	Net Purchased/Payor (Sold/Receiver)
Derivatives designated as hedging instruments:
Cash flow hedges
Fixed price
-Natural gas (Bcf)	Futures	(16.0)		(39.3)
-NGLs, Refined Products and crude oil (MMBbl)	Futures and swaps	(14.5)		(8.4)
-Power (GWh)	Futures	22.1		—
Basis
-Natural gas (Bcf)	Futures	(16.0)		(39.3)

Interest-rate contracts (Billions of dollars)	Swaps	$	—	$	0.4

Derivatives not designated as hedging instruments:
Fixed price
-Natural gas (Bcf)	Futures	(0.7)		(0.1)
-NGLs, Refined Products and crude oil (MMBbl)	Futures and swaps	0.1		0.1
Basis
-Natural gas (Bcf)	Futures	(0.7)		(0.1)
-NGLs, Refined Products, and crude oil (MMBbl)	Futures and swaps	(0.1)		—

Cash Flow Hedges - At December 31, 2023 and 2022, the accumulated other comprehensive income (loss) relating to risk-management assets and liabilities, net of taxes, was $31 million and $(58) million, respectively. The following table sets forth information about the balance of accumulated other comprehensive loss at December 31, 2023, representing unrealized gains (losses) related to risk-management assets and liabilities, net of tax:


	Risk- Management Assets/Liabilities
	(Millions of dollars)
Commodity derivative instruments expected to be realized within the next 36 months (a)	$	63
Settled interest-rate swaps and Treasury locks to be recognized over the life of the long-term, fixed-rate debt (b)	(32)

Accumulated other comprehensive income at December 31, 2023	$	31

(a) - Based on commodity prices on December 31, 2023, we expect net gains of $63 million, net of tax, will be reclassified into earnings during the next 12 months. The remaining forecasted gains and losses have offsetting positions and are immaterial.


	Years Ended December 31,
	2023		2022		2021
	(Millions of dollars)
Commodity contracts	$	147	$	(85)	$	(323)
Interest-rate contracts	54		206		58
Total unrealized change in fair value of cash flow hedges in other comprehensive income (loss)	$	201	$	121	$	(265)


Derivatives in Cash Flow Hedging Relationships	Location of Gain (Loss) Reclassified from Accumulated Other Comprehensive Loss into Net Income
		Years Ended December 31,
		2023		2022		2021
		(Millions of dollars)
Commodity contracts	Commodity sales revenues	$	201	$	(484)	$	(732)
	Cost of sales and fuel	(93)		257		474
Interest-rate contracts	Interest expense	(21)		(34)		(40)
Total change in fair value of cash flow hedges reclassified from accumulated other comprehensive loss into net income on derivatives		$	87	$	(261)	$	(298)

Credit Risk - We monitor the creditworthiness of our counterparties and compliance with policies and limits established by our Risk Oversight and Strategy Committee. We maintain credit policies with regard to our counterparties that we believe minimize credit risk. These policies include an evaluation of potential counterparties’ financial condition (including credit ratings, bond yields and credit default swap rates), collateral requirements under certain circumstances and the use of standardized master-netting agreements that allow us to net the positive and negative exposures associated with a single counterparty. We use internally developed credit ratings for counterparties that do not have a credit rating.

Our financial commodity derivatives are primarily settled through a NYMEX or ICE clearing broker account with daily margin requirements. However, we may enter into financial derivative instruments that contain provisions that require us to maintain an investment-grade credit rating from S&P, Fitch and/or Moody’s. If our credit ratings on our senior unsecured long-term debt were to decline below investment grade, the counterparties to the derivative instruments could request collateralization on derivative instruments in net liability positions. There were no financial derivative instruments with contingent features related to credit risk at December 31, 2023.

The counterparties to our derivative contracts typically consist of major energy companies, financial institutions and commercial and industrial end users. This concentration of counterparties may affect our overall exposure to credit risk, either positively or negatively, in that the counterparties may be affected similarly by changes in economic, regulatory or other conditions. Based on our policies, exposures, credit and other reserves, we do not anticipate a material adverse effect on our financial position or results of operations as a result of counterparty nonperformance.