10-Q

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 10-Q

☑ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the quarterly period ended March 31, 2024

or

☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the transition period from _____ to _____

Commission File Number: 001-34991

 

TARGA RESOURCES CORP.

(Exact name of registrant as specified in its charter)

Delaware	20-3701075
(State or other jurisdiction of incorporation or organization)	(I.R.S. Employer Identification No.)
811 Louisiana Street, Suite 2100, Houston, Texas	77002
(Address of principal executive offices)	(Zip Code)

(713) 584-1000

(Registrant’s telephone number, including area code)

Securities registered pursuant to Section 12(b) of the Act:

Title of each class	Trading Symbol(s)	Name of exchange on which registered
Common Stock	TRGP	New York Stock Exchange

Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days. Yes ☑ No ☐

Indicate by check mark whether the registrant has submitted electronically every Interactive Data File required to be submitted pursuant to Rule 405 of Regulation S-T (§232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit such files). Yes ☑ No ☐

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, a smaller reporting company, or an emerging growth company. See the definitions of “large accelerated filer,” “accelerated filer,” “smaller reporting company,” and “emerging growth company” in Rule 12b-2 of the Exchange Act.

Large accelerated filer	☑	Accelerated filer	☐
Non-accelerated filer	☐	Smaller reporting company	☐
		Emerging growth company	☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act). Yes ☐ No ☑

As of April 26, 2024, there were 221,716,505 shares of the registrant’s common stock, $0.001 par value, outstanding.

TABLE OF CONTENTS

PART I—FINANCIAL INFORMATION
Item 1. Financial Statements	4
Consolidated Balance Sheets as of March 31, 2024 and December 31, 2023	4
Consolidated Statements of Operations for the three months ended March 31, 2024 and 2023	5
Consolidated Statements of Comprehensive Income (Loss) for the three months ended March 31, 2024 and 2023	6
Consolidated Statements of Changes in Owners’ Equity for the three months ended March 31, 2024 and 2023	7
Consolidated Statements of Cash Flows for the three months ended March 31, 2024 and 2023	9
Notes to Consolidated Financial Statements	10
Item 2. Management’s Discussion and Analysis of Financial Condition and Results of Operations	24
Item 3. Quantitative and Qualitative Disclosures About Market Risk	37
Item 4. Controls and Procedures	39
PART II—OTHER INFORMATION
Item 1. Legal Proceedings	40
Item 1A. Risk Factors	40
Item 2. Unregistered Sales of Equity Securities and Use of Proceeds	40
Item 3. Defaults Upon Senior Securities	40
Item 4. Mine Safety Disclosures	41
Item 5. Other Information	41
Item 6. Exhibits	41
SIGNATURES
Signatures	42

1

CAUTIONARY STATEMENT ABOUT FORWARD-LOOKING STATEMENTS

Targa Resources Corp.’s (together with its subsidiaries, including Targa Resources Partners LP (the “Partnership”), “we,” “us,” “our,” “Targa,” “TRGP,” or the “Company”) reports, filings and other public announcements may from time to time contain statements that do not directly or exclusively relate to historical facts. Such statements are “forward-looking statements.” You can typically identify forward-looking statements within the meaning of Section 27A of the Securities Act of 1933, as amended, and Section 21E of the Securities Exchange Act of 1934, as amended, by the use of forward-looking statements, such as “may,” “could,” “project,” “believe,” “anticipate,” “expect,” “estimate,” “potential,” “plan,” “forecast” and other similar words.

All statements that are not statements of historical facts, including statements regarding our future financial position, business strategy, budgets, projected costs and plans and objectives of management for future operations, are forward-looking statements.

These forward-looking statements reflect our intentions, plans, expectations, assumptions and beliefs about future events and are subject to risks, uncertainties and other factors, many of which are outside our control. Important factors that could cause actual results to differ materially from the expectations expressed or implied in the forward-looking statements include known and unknown risks. Known risks and uncertainties include, but are not limited to, the following risks and uncertainties:

•the level and success of crude oil and natural gas drilling around our assets, our success in connecting natural gas supplies to our gathering and processing systems, oil supplies to our gathering systems and natural gas liquid supplies to our logistics and transportation facilities and our success in connecting our facilities to transportation services and markets;

•actions taken by other countries with significant hydrocarbon production;

•the timing and extent of changes in natural gas, natural gas liquids, crude oil and other commodity prices, interest rates and demand for our services;

•our ability to grow through internal growth capital projects or acquisitions and the successful integration and future performance of such assets;

•the timing and success of business development efforts;

•our ability to timely obtain and maintain necessary licenses, permits and other approvals;

•industry changes, including the impact of consolidation, changes in competition and the drive to reduce fossil fuel use and substitute alternative forms of energy for oil and gas;

•downside commodity price volatility from a variety of potential factors that can result in lower activity in our areas of operation;

•our success in risk management activities, including the use of derivative instruments to hedge commodity price risks;

•general economic, market and business conditions;

•the impact of outbreaks of illnesses, pandemics or any other public health crises;

•weather and other natural phenomena, and related impacts;

•our ability to access the capital markets, which will depend on general market conditions, including the impact of increased interest rates, the potential for additional rate increases, associated Federal Reserve policies and potential economic recession, our credit ratings and leverage levels, and demand for our common equity, senior notes and commercial paper;

•the amount of collateral required to be posted from time to time in our transactions;

•the level of creditworthiness of counterparties to various transactions with us;

•the impact of disruptions in the bank and capital markets, including those resulting from lack of access to liquidity for banking and financial services firms;

•changes in laws and regulations, particularly with regard to taxes, safety and the protection of the environment; and

•the risks described in our Annual Report on Form 10-K for the year ended December 31, 2023 (“Annual Report”) and our reports and registration statements filed from time to time with the United States Securities and Exchange Commission (“SEC”).

2

Although we believe that the assumptions underlying our forward-looking statements are reasonable, any of the assumptions could be inaccurate, and, therefore, we cannot assure you that the forward-looking statements included in this Quarterly Report on Form 10-Q for the quarter ended March 31, 2024 (“Quarterly Report”) will prove to be accurate. Some of these and other risks and uncertainties that could cause actual results to differ materially from such forward-looking statements are more fully described in our Annual Report. Except as may be required by applicable law, we undertake no obligation to publicly update or advise of any change in any forward-looking statement, whether as a result of new information, future events or otherwise.

As generally used in the energy industry and in this Quarterly Report, the identified terms have the following meanings:

Bbl	Barrels (equal to 42 U.S. gallons)
BBtu	Billion British thermal units
Bcf	Billion cubic feet
Btu	British thermal units, a measure of heating value
/d	Per day
FERC	Federal Energy Regulatory Commission
GAAP	Accounting principles generally accepted in the United States of America
gal	U.S. gallons
LPG	Liquefied petroleum gas
MBbl	Thousand barrels
MMBbl	Million barrels
MMBtu	Million British thermal units
MMcf	Million cubic feet
MMgal	Million U.S. gallons
NGL(s)	Natural gas liquid(s)
NYMEX	New York Mercantile Exchange
NYSE	New York Stock Exchange
SCOOP	South Central Oklahoma Oil Province
SOFR	Secured Overnight Financing Rate
STACK	Sooner Trend, Anadarko, Canadian and Kingfisher

3

PART I – FINANCIAL INFORMATION

Item 1. Financial Statements.

TARGA RESOURCES CORP.

CONSOLIDATED BALANCE SHEETS

	March 31, 2024			December 31, 2023
	(Unaudited)
	(In millions)
ASSETS
Current assets:
Cash and cash equivalents	$	109.9		$	141.7
Trade receivables, net of allowances of $2.5 million and $2.5 million at March 31, 2024 and December 31, 2023		1,483.7			1,471.0
Inventories		224.5			371.5
Assets from risk management activities		72.6			111.9
Other current assets		82.3			98.5
Total current assets		1,973.0			2,194.6
Property, plant and equipment, net		16,282.8			15,806.4
Intangible assets, net		2,257.3			2,350.6
Long-term assets from risk management activities		17.1			33.3
Investments in unconsolidated affiliates		152.2			146.3
Other long-term assets		163.7			140.6
Total assets	$	20,846.1		$	20,671.8
LIABILITIES AND OWNERS’ EQUITY
Current liabilities:
Accounts payable	$	1,709.5		$	1,574.9
Accrued liabilities		295.9			281.7
Interest payable		186.2			229.6
Liabilities from risk management activities		76.8			54.0
Current debt obligations		546.1			620.7
Total current liabilities		2,814.5			2,760.9
Long-term debt		12,509.9			12,333.2
Long-term liabilities from risk management activities		39.8			16.8
Deferred income taxes, net		600.2			535.8
Other long-term liabilities		304.1			415.1
Contingencies (see Note 12)
Owners’ equity:
Targa Resources Corp. stockholders’ equity:
Common stock ($0.001 par value, 450,000,000 shares authorized as of March 31, 2024 and December 31, 2023)		0.2			0.2
Issued Outstanding
March 31, 2024 241,259,940 222,150,320
December 31, 2023 240,095,699 222,611,259
Additional paid-in capital		3,073.4			3,058.8
Retained earnings (deficit)		654.1			492.0
Accumulated other comprehensive income (loss)		33.9			85.6
Treasury stock, at cost (19,109,620 shares as of March 31, 2024 and 17,484,440 shares as of December 31, 2023)		(1,057.7	)		(896.9	)
Total Targa Resources Corp. stockholders’ equity		2,703.9			2,739.7
Noncontrolling interests		1,873.7			1,870.3
Total owners’ equity		4,577.6			4,610.0
Total liabilities and owners’ equity	$	20,846.1		$	20,671.8

See notes to consolidated financial statements.

4

TARGA RESOURCES CORP.

CONSOLIDATED STATEMENTS OF OPERATIONS

	Three Months Ended March 31,
	2024			2023
	(Unaudited)
	(In millions, except per share amounts)
Revenues:
Sales of commodities	$	3,953.0		$	4,025.0
Fees from midstream services		609.4			495.5
Total revenues		4,562.4			4,520.5
Costs and expenses:
Product purchases and fuel		3,218.0			3,019.0
Operating expenses		278.0			258.2
Depreciation and amortization expense		340.5			324.8
General and administrative expense		86.5			82.4
Other operating (income) expense		—			(0.6	)
Income (loss) from operations		639.4			836.7
Other income (expense):
Interest expense, net		(228.6	)		(168.0	)
Equity earnings (loss)		2.8			(0.2	)
Other, net		1.7			(3.0	)
Income (loss) before income taxes		415.3			665.5
Income tax (expense) benefit		(82.7	)		(110.3	)
Net income (loss)		332.6			555.2
Less: Net income (loss) attributable to noncontrolling interests		57.4			58.2
Net income (loss) attributable to Targa Resources Corp.		275.2			497.0
Premium on repurchase of noncontrolling interests, net of tax		—			490.7
Net income (loss) attributable to common shareholders	$	275.2		$	6.3
Net income (loss) per common share - basic	$	1.23		$	0.03
Net income (loss) per common share - diluted	$	1.22		$	0.03
Weighted average shares outstanding - basic		222.8			226.4
Weighted average shares outstanding - diluted		223.7			229.3

See notes to consolidated financial statements.

5

TARGA RESOURCES CORP.

CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS)

	Three Months Ended March 31,
	2024									2023
	Pre-Tax			Related Income Tax			After Tax			Pre-Tax			Related Income Tax			After Tax
	(Unaudited)
	(In millions)
Net income (loss)							$	332.6								$	555.2
Other comprehensive income (loss):
Commodity hedging contracts:
Change in fair value	$	(70.3	)	$	16.1			(54.2	)	$	83.9		$	(18.6	)		65.3
Settlements reclassified to revenues		3.2			(0.7	)		2.5			(45.2	)		10.0			(35.2	)
Other comprehensive income (loss)		(67.1	)		15.4			(51.7	)		38.7			(8.6	)		30.1
Comprehensive income (loss)								280.9									585.3
Less: Comprehensive income (loss) attributable to noncontrolling interests								57.4									58.2
Comprehensive income (loss) attributable to Targa Resources Corp.							$	223.5								$	527.1

See notes to consolidated financial statements.

6

TARGA RESOURCES CORP.

CONSOLIDATED STATEMENTS OF CHANGES IN OWNERS’ EQUITY

								Retained			Accumulated
						Additional		Earnings			Other			Treasury								Total
	Common Stock					Paid in		(Accumulated			Comprehensive			Shares					Noncontrolling			Owners’
	Shares			Amount		Capital		Deficit)			Income (Loss)			Shares		Amount			Interests			Equity
	(Unaudited)
	(In millions, except shares in thousands)
Balance, December 31, 2023		222,611		$	0.2	$	3,058.8	$	492.0		$	85.6			17,484	$	(896.9	)	$	1,870.3		$	4,610.0
Compensation on equity grants		—			—		14.6		—			—			—		—			—			14.6
Dividend equivalent rights		—			—		—		(0.7	)		—			—		—			—			(0.7	)
Shares issued under compensation program		1,165			—		—		—			—			—		—			—			—
Shares tendered for tax withholding obligations		(440	)		—		—		—			—			440		(36.5	)		—			(36.5	)
Repurchases of common stock		(1,186	)		—		—		—			—			1,186		(123.7	)		—			(123.7	)
Excise tax on repurchases of common stock		—			—		—		—			—			—		(0.6	)		—			(0.6	)
Common stock dividends
Dividends - $0.50 per share		—			—		—		(112.4	)		—			—		—			—			(112.4	)
Distributions to noncontrolling interests		—			—		—		—			—			—		—			(55.8	)		(55.8	)
Contributions from noncontrolling interests		—			—		—		—			—			—		—			1.8			1.8
Other comprehensive income (loss)		—			—		—		—			(51.7	)		—		—			—			(51.7	)
Net income (loss)		—			—		—		275.2			—			—		—			57.4			332.6
Balance, March 31, 2024		222,150		$	0.2	$	3,073.4	$	654.1		$	33.9			19,110	$	(1,057.7	)	$	1,873.7		$	4,577.6

See notes to consolidated financial statements.

7

TARGA RESOURCES CORP.

CONSOLIDATED STATEMENTS OF CHANGES IN OWNERS’ EQUITY

									Retained			Accumulated
						Additional			Earnings			Other		Treasury								Total
	Common Stock					Paid in			(Accumulated			Comprehensive		Shares					Noncontrolling			Owners’
	Shares			Amount		Capital			Deficit)			Income (Loss)		Shares		Amount			Interests			Equity
	(Unaudited)
	(In millions, except shares in thousands)
Balance, December 31, 2022		226,042		$	0.2	$	3,702.3		$	(626.8	)	$	54.7		11,897	$	(464.7	)	$	2,316.5		$	4,982.2
Compensation on equity grants		—			—		15.0			—			—		—		—			—			15.0
Dividend equivalent rights		—			—		(1.3	)		—			—		—		—			—			(1.3	)
Shares issued under compensation program		1,267			—		—			—			—		—		—			—			—
Shares tendered for tax withholding obligations		(449	)		—		—			—			—		449		(33.8	)		—			(33.8	)
Repurchases of common stock		(724	)		—		—			—			—		724		(52.0	)		—			(52.0	)
Common stock dividends
Dividends - $0.35 per share		—			—		—			(79.3	)		—		—		—			—			(79.3	)
Dividends in excess of retained earnings		—			—		(79.3	)		79.3			—		—		—			—			—
Distributions to noncontrolling interests		—			—		—			—			—		—		—			(56.1	)		(56.1	)
Contributions from noncontrolling interests		—			—		—			—			—		—		—			0.2			0.2
Repurchase of noncontrolling interests, net of tax		—			—		(490.7	)		—			—		—		—			(457.3	)		(948.0	)
Other comprehensive income (loss)		—			—		—			—			30.1		—		—			—			30.1
Net income (loss)		—			—		—			497.0			—		—		—			58.2			555.2
Balance, March 31, 2023		226,136		$	0.2	$	3,146.0		$	(129.8	)	$	84.8		13,070	$	(550.5	)	$	1,861.5		$	4,412.2

See notes to consolidated financial statements.

8

TARGA RESOURCES CORP.

CONSOLIDATED STATEMENTS OF CASH FLOWS

	Three Months Ended March 31,
	2024			2023
	(Unaudited)
	(In millions)
Cash flows from operating activities
Net income (loss)	$	332.6		$	555.2
Adjustments to reconcile net income (loss) to net cash provided by operating activities:
Amortization in interest expense		3.7			3.2
Compensation on equity grants		14.6			15.0
Depreciation and amortization expense		340.5			324.8
(Gain) loss on sale or disposition of assets		(1.1	)		(1.5	)
Write-downs of assets		1.0			0.9
Accretion of asset retirement obligations		1.6			1.6
Deferred income tax expense (benefit)		79.8			106.0
Equity (earnings) loss of unconsolidated affiliates		(2.8	)		0.2
Distributions of earnings received from unconsolidated affiliates		5.6			1.4
Risk management activities		22.0			(175.7	)
Changes in operating assets and liabilities, net of acquisitions:
Receivables and other assets		39.8			440.8
Inventories		147.0			237.5
Accounts payable, accrued liabilities and other liabilities		(64.5	)		(292.7	)
Interest payable		(43.4	)		(46.9	)
Net cash provided by operating activities		876.4			1,169.8
Cash flows from investing activities
Outlays for property, plant and equipment		(669.8	)		(475.7	)
Proceeds from sale of assets		0.9			0.2
Investments in unconsolidated affiliates		(9.4	)		(6.2	)
Return of capital from unconsolidated affiliates		0.7			1.2
Other, net		(0.3	)		(0.3	)
Net cash provided by (used in) investing activities		(677.9	)		(480.8	)
Cash flows from financing activities
Debt obligations:
Repayments of credit facilities		—			(290.0	)
Proceeds from borrowings of commercial paper notes		14,025.0			14,526.8
Repayments of commercial paper notes		(13,840.0	)		(15,230.5	)
Proceeds from borrowings under accounts receivable securitization facility		25.0			—
Repayments of accounts receivable securitization facility		(100.0	)		(96.0	)
Proceeds from issuance of senior notes		—			1,717.1
Principal payments of finance leases		(10.8	)		(9.4	)
Costs incurred in connection with financing arrangements		—			(4.1	)
Repurchase of shares		(160.2	)		(85.8	)
Contributions from noncontrolling interests		1.8			0.2
Distributions to noncontrolling interests		(53.2	)		(47.3	)
Repurchase of noncontrolling interests		(1.3	)		(1,091.9	)
Dividends paid to common shareholders		(116.6	)		(85.3	)
Net cash provided by (used in) financing activities		(230.3	)		(696.2	)
Net change in cash and cash equivalents		(31.8	)		(7.2	)
Cash and cash equivalents, beginning of period		141.7			219.0
Cash and cash equivalents, end of period	$	109.9		$	211.8

See notes to consolidated financial statements.

9

TARGA RESOURCES CORP.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

(Unaudited)

Except as noted within the context of each footnote disclosure, the dollar amounts presented in the tabular data within these footnote disclosures are stated in millions of dollars.

Note 1 — Organization and Operations

Our Organization

Targa Resources Corp. (NYSE: TRGP) is a publicly traded Delaware corporation formed in October 2005. Targa is a leading provider of midstream services and is one of the largest independent infrastructure companies in North America. We own, operate, acquire, and develop a diversified portfolio of complementary domestic midstream infrastructure assets.

In this Quarterly Report, unless the context requires otherwise, references to “we,” “us,” “our,” “the Company,” “Targa” or “TRGP” are intended to mean our consolidated business and operations. TRGP controls the general partner of and owns all of the outstanding common units representing limited partner interests in Targa Resources Partners LP, referred to herein as the “Partnership”. Targa consolidates the Partnership and its subsidiaries under GAAP, and the accompanying consolidated financial statements have been prepared under the rules and regulations of the SEC. Targa’s consolidated financial statements include differences from the consolidated financial statements of the Partnership. The most noteworthy differences are:

•the inclusion of the TRGP senior revolving credit facility and term loan facility;

•the inclusion of the TRGP senior notes;

•the inclusion of the TRGP commercial paper notes; and

•the impacts of TRGP’s treatment as a corporation for U.S. federal income tax purposes.

Our Operations

The Company is primarily engaged in the business of:

•gathering, compressing, treating, processing, transporting, and purchasing and selling natural gas;

•transporting, storing, fractionating, treating, and purchasing and selling NGLs and NGL products, including services to LPG exporters; and

•gathering, storing, terminaling, and purchasing and selling crude oil.

See Note 16 – Segment Information for certain financial information regarding our business segments.

Note 2 — Basis of Presentation

The accompanying unaudited consolidated financial statements have been prepared in accordance with the instructions to Form 10-Q and do not include all information and disclosures required by GAAP. Therefore, this information should be read in conjunction with our consolidated financial statements and notes contained in our Annual Report. The information furnished herein reflects all adjustments that are, in the opinion of management, of a normal recurring nature and considered necessary for a fair statement of the results of the interim periods reported. All significant intercompany balances and transactions have been eliminated in consolidation. Certain amounts in prior periods have been reclassified to conform to the current year presentation. Operating results for the three months ended March 31, 2024 are not necessarily indicative of the results that may be expected for the year ending December 31, 2024.

10

Note 3 — Significant Accounting Policies

The accounting policies that we follow are set forth in Note 3 – Significant Accounting Policies of the Notes to Consolidated Financial Statements in our Annual Report. Other than the updates noted below, there were no significant updates or revisions to our accounting policies during the three months ended March 31, 2024.

Recently issued accounting pronouncements not yet adopted

Improvements to Reportable Segment Disclosures

In November 2023, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”) 2023-07, Segment Reporting (Topic 280): Improvements to Reportable Segment Disclosures. The amendments in this update require, among other items, that public entities disclose, on an annual and interim basis, significant segment expenses that are regularly provided to the chief operating decision maker (“CODM”) and included within each reported measure of segment profit or loss. Additionally, the amendments require annual disclosure of the title and position of the CODM and how that individual uses the reported measure(s) of segment profit or loss in assessing segment performance and how to allocate resources.

These amendments are effective for fiscal years beginning after December 15, 2023, and for interim periods within fiscal years beginning after December 15, 2024, with early adoption permitted. The disclosures required in the amendments apply retrospectively to all prior periods presented in the financial statements. We are evaluating the effect of the amendments on our consolidated financial statements and expect to disclose the required information for fiscal years beginning in the Annual Report on Form 10-K for the year ended December 31, 2024 and for interim periods beginning in the Quarterly Report on Form 10-Q for the quarter ended March 31, 2025.

Improvements to Income Tax Disclosures

In December 2023, the FASB issued ASU 2023-09, Income Taxes (Topic 740): Improvements to Income Tax Disclosures. The amendments in this update require, among other items, that public entities disclose, on an annual and interim basis, (i) specific categories of income taxes in the rate reconciliation, and (ii) a disaggregation of income taxes paid by federal, state, and foreign taxes.

These amendments are effective for fiscal years beginning after December 15, 2024, with early adoption permitted. The amendments are required to be applied prospectively with retrospective application permitted. We are evaluating the effect of the amendments on our consolidated financial statements and expect to disclose the required information beginning in the Annual Report on Form 10-K for the year ended December 31, 2025.

Note 4 — Acquisitions

In January 2023, we completed the acquisition of Blackstone Energy Partners’ 25% interest in the Grand Prix Joint Venture (the “Grand Prix Transaction”) for aggregate consideration of $1.05 billion in cash and a final closing adjustment of $41.9 million. Following the closing of the Grand Prix Transaction, we own 100% of the interest in Grand Prix. The change in our ownership interests was accounted for as an equity transaction representing the acquisition of noncontrolling interests. The amount of the redemption price in excess of the carrying amount, net of tax, was $490.7 million, which was accounted for as a premium on repurchase of noncontrolling interests, and resulted in a reduction to Net income (loss) attributable to common shareholders.

Note 5 — Property, Plant and Equipment and Intangible Assets

	March 31, 2024			December 31, 2023			Estimated Useful Lives (In Years)
Gathering systems	$	10,961.3		$	10,858.3		5 to 20
Processing and fractionation facilities		8,346.6			8,285.5		5 to 25
Terminaling and storage facilities		1,408.3			1,403.9		5 to 25
Transportation assets		3,366.0			3,294.0		10 to 50
Other property, plant and equipment		440.4			430.5		3 to 50
Land		184.7			185.0		—
Construction in progress		1,928.5			1,456.1		—
Finance lease right-of-use assets		348.1			351.9		5 to 14
Property, plant and equipment		26,983.9			26,265.2
Accumulated depreciation, amortization and impairment		(10,701.1	)		(10,458.8	)
Property, plant and equipment, net	$	16,282.8		$	15,806.4
Intangible assets		4,378.0			4,378.0		10 to 20
Accumulated amortization and impairment		(2,120.7	)		(2,027.4	)
Intangible assets, net	$	2,257.3		$	2,350.6

11

During the three months ended March 31, 2024 and 2023, depreciation expense was $247.2 million and $228.8 million, respectively.

Intangible Assets

Intangible assets consist of customer contracts and customer relationships acquired in prior business combinations. The fair value of these acquired intangible assets were determined at the date of acquisition based on the present values of estimated future cash flows. Amortization expense attributable to these assets is recorded over the periods in which we benefit from services provided to customers.

During the three months ended March 31, 2024 and 2023, amortization expense was $93.3 million and $96.0 million, respectively.

The estimated annual amortization expense for intangible assets is approximately $373.2 million, $326.0 million, $279.8 million, $252.2 million and $234.0 million for each of the years 2024 through 2028, respectively.

Note 6 — Debt Obligations

	March 31, 2024			December 31, 2023
Current:
Partnership accounts receivable securitization facility, due August 2024 (1)	$	500.0		$	575.0
Finance lease liabilities		46.1			45.7
Current debt obligations		546.1			620.7
Long-term:
Term loan facility, variable rate, due July 2025		500.0			500.0
TRGP senior revolving credit facility, variable rate, due February 2027 (2)		360.0			175.0
Senior unsecured notes issued by TRGP:
5.200% fixed rate, due July 2027		750.0			750.0
6.150% fixed rate, due March 2029		1,000.0			1,000.0
4.200% fixed rate, due February 2033		750.0			750.0
6.125% fixed rate, due March 2033		900.0			900.0
6.500% fixed rate, due March 2034		1,000.0			1,000.0
4.950% fixed rate, due April 2052		750.0			750.0
6.250% fixed rate, due July 2052		500.0			500.0
6.500% fixed rate, due February 2053		850.0			850.0
Unamortized discount		(29.7	)		(29.5	)
Senior unsecured notes issued by the Partnership: (3)
6.500% fixed rate, due July 2027		705.2			705.2
5.000% fixed rate, due January 2028		700.3			700.3
6.875% fixed rate, due January 2029		679.3			679.3
5.500% fixed rate, due March 2030		949.6			949.6
4.875% fixed rate, due February 2031		1,000.0			1,000.0
4.000% fixed rate, due January 2032		1,000.0			1,000.0
		12,364.7			12,179.9
Debt issuance costs, net of amortization		(87.8	)		(90.8	)
Finance lease liabilities		233.0			244.1
Long-term debt		12,509.9			12,333.2
Total debt obligations	$	13,056.0		$	12,953.9
Irrevocable standby letters of credit: (2)
Letters of credit outstanding under the TRGP senior revolving credit facility	$	32.5		$	22.3

(1)As of March 31, 2024, the Partnership had $500.0 million of qualifying receivables under its $600.0 million accounts receivable securitization facility (the “Securitization Facility”), resulting in $100.0 million of availability.

(2)We maintain an unsecured commercial paper note program (the “Commercial Paper Program”), the borrowings of which are supported through maintaining a minimum available borrowing capacity under our $2.75 billion TRGP senior revolving credit facility (the “TRGP Revolver”) equal to the aggregate amount outstanding under the Commercial Paper Program. As of March 31, 2024, the TRGP Revolver had no borrowings outstanding and the Commercial Paper Program had $360.0 million borrowings outstanding, resulting in approximately $2.4 billion of available liquidity, after accounting for outstanding letters of credit.

(3)We guarantee all of the Partnership’s outstanding senior unsecured notes.

12

The following table shows the range of interest rates and weighted average interest rate incurred on our variable-rate debt obligations during the three months ended March 31, 2024:

	Range of Interest Rates Incurred	Weighted Average Interest Rate Incurred
TRGP Revolver and Commercial Paper Program	5.9% - 6.2%	6.0%
Securitization Facility	6.3% - 6.4%	6.3%
Term Loan Facility	6.7% - 6.8%	6.8%

Compliance with Debt Covenants

As of March 31, 2024, we were in compliance with the covenants contained in our various debt agreements.

Note 7 — Other Long-term Liabilities

Other long-term liabilities are comprised of the following:

	March 31, 2024		December 31, 2023
Deferred revenue	$	119.1	$	248.8
Asset retirement obligations		104.6		103.0
Operating lease liabilities		76.6		56.5
Other liabilities		3.8		6.8
Total other long-term liabilities	$	304.1	$	415.1

Deferred Revenue

We have certain long-term contractual arrangements for which we have received consideration that we are not yet able to recognize as revenue. The resulting deferred revenue will be recognized once all conditions for revenue recognition have been met.

Deferred revenue as of March 31, 2024 and December 31, 2023, was $119.1 million and $248.8 million, respectively. Deferred revenue as of December 31, 2023 included $129.0 million of payments received from Vitol Americas Corp. (“Vitol”) (formerly known as Noble Americas Corp.), a subsidiary of Vitol US Holding Co., in 2016, 2017, and 2018 as part of an agreement (the “Splitter Agreement”) related to the construction and operation of a crude oil and condensate splitter. In December 2018, Vitol elected to terminate the Splitter Agreement. As a result of a legal ruling in April 2024, the $129.0 million payments from Vitol were reclassified to Accrued liabilities on our Consolidated Balance Sheets as of March 31, 2024. See Note 12 – Contingencies for further details.

Deferred revenue includes nonmonetary consideration received in a 2015 amendment to a gas gathering and processing agreement and consideration received for other construction activities of facilities connected to our systems. Deferred revenue also includes contributions in aid of construction received from customers for which revenue is recognized over the expected contract term.

The following table shows the components of deferred revenue:

	March 31, 2024		December 31, 2023
Contributions in aid of construction	$	86.9	$	86.4
Gas contract amendment		29.2		29.8
Splitter agreement		—		129.0
Other		3.0		3.6
Total deferred revenue	$	119.1	$	248.8

The following table shows the changes in deferred revenue:

Balance at December 31, 2023	$	248.8
Additions		3.6
Reclassification to accrued liabilities		(129.0	)
Revenue recognized		(4.3	)
Balance at March 31, 2024	$	119.1

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Note 8 — Common Stock and Related Matters

Common Share Repurchase Program

In October 2020, our Board of Directors approved a share repurchase program (the “2020 Share Repurchase Program”) for the repurchase of up to $500.0 million of our outstanding common stock. During the second quarter of 2023, we exhausted the 2020 Share Repurchase Program.

In May 2023, our Board of Directors approved a share repurchase program (the “2023 Share Repurchase Program”) for the repurchase of up to $1.0 billion of our outstanding common stock. For the three months ended March 31, 2024, we repurchased 1,186,444 shares of our common stock at a weighted average per share price of $104.26 for a total net cost of $123.7 million. For the three months ended March 31, 2023, we repurchased 724,140 shares of our common stock at a weighted average per share price of $71.82 for a total net cost of $52.0 million.

As of March 31, 2024, there was $646.4 million remaining under the 2023 Share Repurchase Program. We are not obligated to repurchase any specific dollar amount or number of shares under the 2023 Share Repurchase Program and may discontinue the program at any time.

Common Stock Dividends

In April 2024, we declared an increase to our common dividend to $0.75 per common share, or $3.00 per common share annualized effective for the first quarter of 2024.

The following table details the dividends declared and/or paid by us to common shareholders for the three months ended March 31, 2024:

Three Months Ended	Date Paid or To Be Paid	Total Common Dividends Declared		Amount of Common Dividends Paid or To Be Paid		Dividends on Share-Based Awards		Dividends Declared per Share of Common Stock
(In millions, except per share amounts)
March 31, 2024	May 15, 2024	$	168.1	$	166.3	$	1.8	$	0.75000
December 31, 2023	February 15, 2024		112.8		111.6		1.2		0.50000

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Note 9 — Earnings per Common Share

In March 2023, the Compensation Committee amended the Restricted Stock Units Grant Agreements that govern the Restricted Stock Unit awards (“RSUs”) that vest no later than three years following the RSUs’ grant date. The amendment resulted in quarterly cash dividend payments to RSU holders beginning with the common stock dividend paid in May 2023. As the amended RSUs and certain four-year retention awards participate in nonforfeitable dividends with the common equity owners of the Company, they are considered participating securities.

We calculate earnings per share using the two-class method. Earnings are allocated to common stock and participating securities based on the amount of dividends paid in the current period plus an allocation of the undistributed earnings to the extent that each security participates in earnings.

The following table sets forth a reconciliation of net income and weighted average shares outstanding used in computing basic and diluted net income per common share:

	Three Months Ended March 31,
	2024		2023
	(In millions, except per share amounts)
Net income (loss) attributable to Targa Resources Corp.	$	275.2	$	497.0
Less: Premium on repurchase of noncontrolling interests, net of tax (1)		—		490.7
Net income (loss) attributable to common shareholders		275.2		6.3
Less: Participating share-based earnings (2)		2.2		—
Net income (loss) allocated to common shareholders for basic earnings per share	$	273.0	$	6.3
Weighted average shares outstanding - basic		222.8		226.4
Dilutive effect of unvested stock awards		0.9		2.9
Weighted average shares outstanding - diluted		223.7		229.3
Net income (loss) available per common share - basic	$	1.23	$	0.03
Net income (loss) available per common share - diluted	$	1.22	$	0.03

(1)Represents premium paid on the Grand Prix Transaction. See Note 4 – Acquisitions.

(2)Represents the distributed and undistributed earnings of the Company attributable to the participating securities. The dilutive effect of the reallocation of participating securities to diluted net income attributable to common shareholders was immaterial.

The following potential common stock equivalents are excluded from the determination of diluted earnings per share because the inclusion of such shares would have been anti-dilutive (in millions on a weighted-average basis):

	Three Months Ended March 31,
	2024		2023
Unvested restricted stock awards		1.1		0.1

Note 10 — Derivative Instruments and Hedging Activities

The primary purpose of our commodity risk management activities is to manage our exposure to commodity price risk and reduce volatility in our operating cash flow due to fluctuations in commodity prices. We have entered into derivative instruments to hedge the commodity price risks associated with a portion of our expected (i) natural gas, NGL, and condensate equity volumes in our Gathering and Processing operations that result from percent-of-proceeds processing arrangements, (ii) future commodity purchases and sales in our Logistics and Transportation segment and (iii) natural gas transportation basis risk in our Logistics and Transportation segment. The hedge positions associated with (i) and (ii) above will move favorably in periods of falling commodity prices and unfavorably in periods of rising commodity prices and are primarily designated as cash flow hedges for accounting purposes.

The hedges generally match the NGL product composition and the NGL delivery points of our physical equity volumes. Our natural gas hedges are a mixture of specific gas delivery points and Henry Hub. The NGL hedges may be transacted as specific NGL hedges or as baskets of ethane, propane, normal butane, isobutane and natural gasoline based upon our expected equity NGL composition. We believe this approach avoids uncorrelated risks resulting from employing hedges on crude oil or other petroleum products as “proxy” hedges of NGL prices. Our natural gas and NGL hedges are settled using published index prices for delivery at various locations.

We hedge a portion of our condensate equity volumes using crude oil hedges that are based on the NYMEX futures contracts for West Texas Intermediate light, sweet crude, which approximates the prices received for condensate. This exposes us to a market differential risk if the NYMEX futures do not move in exact parity with the sales price of our underlying condensate equity volumes.

15

We also enter into derivative instruments to help manage other short-term commodity-related business risks and take advantage of market opportunities. We have not designated these derivatives as hedges and record changes in fair value and cash settlements to revenues as current income.

At March 31, 2024, the notional volumes of our commodity derivative contracts were:

Commodity	Instrument	Unit	2024		2025		2026		2027
Natural Gas	Swaps	MMBtu/d		100,136		63,156		29,623		—
Natural Gas	Basis Swaps	MMBtu/d		437,909		257,082		152,500		65,000
NGL	Swaps	Bbl/d		29,563		21,354		8,768		—
NGL	Futures	Bbl/d		8,585		4,682		—		—
Condensate	Swaps	Bbl/d		4,442		3,447		1,881		—

Our derivative contracts are subject to netting arrangements that permit our contracting subsidiaries to net cash settle offsetting asset and liability positions with the same counterparty within the same Targa entity. The master netting provisions reduced our maximum loss due to counterparty credit risk by $35.2 million as of March 31, 2024. The range of losses attributable to our individual counterparties would be between $0.1 million and $7.3 million, depending on the counterparty in default. We record derivative assets and liabilities on our Consolidated Balance Sheets on a gross basis, without considering the effect of master netting arrangements.

The following schedules reflect the fair value of our derivative instruments and their location on our Consolidated Balance Sheets as well as pro forma reporting assuming that we reported derivatives subject to master netting agreements on a net basis:

		Fair Value as of March 31, 2024					Fair Value as of December 31, 2023
	Balance Sheet	Derivative		Derivative			Derivative		Derivative
	Location	Assets		Liabilities			Assets		Liabilities
Derivatives designated as hedging instruments
Commodity contracts	Current	$	67.1	$	(36.8	)	$	103.5	$	(16.4	)
	Long-term		16.4		(12.9	)		29.0		(3.0	)
Total derivatives designated as hedging instruments		$	83.5	$	(49.7	)	$	132.5	$	(19.4	)
Derivatives not designated as hedging instruments
Commodity contracts	Current	$	5.5	$	(40.0	)	$	8.4	$	(37.6	)
	Long-term		0.7		(26.9	)		4.3		(13.8	)
Total derivatives not designated as hedging instruments		$	6.2	$	(66.9	)	$	12.7	$	(51.4	)
Total current position		$	72.6	$	(76.8	)	$	111.9	$	(54.0	)
Total long-term position			17.1		(39.8	)		33.3		(16.8	)
Total derivatives		$	89.7	$	(116.6	)	$	145.2	$	(70.8	)

16

The pro forma impact of reporting derivatives on our Consolidated Balance Sheets on a net basis is as follows:

		Gross Presentation								Pro Forma Net Presentation
March 31, 2024		Asset		Liability			Collateral			Asset		Liability
Current Position
	Counterparties with offsetting positions or collateral	$	72.6	$	(70.4	)	$	11.5		$	25.6	$	(11.9	)
	Counterparties without offsetting positions - assets		—		—			—			—		—
	Counterparties without offsetting positions - liabilities		—		(6.4	)		—			—		(6.4	)
			72.6		(76.8	)		11.5			25.6		(18.3	)
Long-Term Position
	Counterparties with offsetting positions or collateral		17.1		(36.1	)		5.2			3.1		(16.9	)
	Counterparties without offsetting positions - assets		—		—			—			—		—
	Counterparties without offsetting positions - liabilities		—		(3.7	)		—			—		(3.7	)
			17.1		(39.8	)		5.2			3.1		(20.6	)
Total Derivatives
	Counterparties with offsetting positions or collateral		89.7		(106.5	)		16.7			28.7		(28.8	)
	Counterparties without offsetting positions - assets		—		—			—			—		—
	Counterparties without offsetting positions - liabilities		—		(10.1	)		—			—		(10.1	)
		$	89.7	$	(116.6	)	$	16.7		$	28.7	$	(38.9	)
		Gross Presentation								Pro Forma Net Presentation
December 31, 2023		Asset		Liability			Collateral			Asset		Liability
Current Position
	Counterparties with offsetting positions or collateral	$	111.7	$	(54.0	)	$	3.6		$	69.2	$	(7.9	)
	Counterparties without offsetting positions - assets		0.2		—			—			0.2		—
	Counterparties without offsetting positions - liabilities		—		—			—			—		—
			111.9		(54.0	)		3.6			69.4		(7.9	)
Long-Term Position
	Counterparties with offsetting positions or collateral		31.7		(16.8	)		(0.1	)		17.0		(2.2	)
	Counterparties without offsetting positions - assets		1.6		—			—			1.6		—
	Counterparties without offsetting positions - liabilities		—		—			—			—		—
			33.3		(16.8	)		(0.1	)		18.6		(2.2	)
Total Derivatives
	Counterparties with offsetting positions or collateral		143.4		(70.8	)		3.5			86.2		(10.1	)
	Counterparties without offsetting positions - assets		1.8		—			—			1.8		—
	Counterparties without offsetting positions - liabilities		—		—			—			—		—
		$	145.2	$	(70.8	)	$	3.5		$	88.0	$	(10.1	)

Some of our hedges are futures contracts executed through brokers that clear the hedges through an exchange. We maintain a margin deposit with the brokers in an amount sufficient to cover the fair value of our open futures positions. The margin deposit is considered collateral, which is located within Other current assets on our Consolidated Balance Sheets and is not offset against the fair value of our derivative instruments. Our derivative instruments other than our futures contracts are executed under International Swaps and Derivatives Association agreements (“ISDAs”), which govern the key terms with our counterparties. Our ISDAs contain credit-risk related contingent features. Following the release of the collateral securing our TRGP Revolver, our derivative positions are no longer secured. As of March 31, 2024, we have outstanding net derivative positions that contain credit-risk related contingent features that are in a net liability position of $31.1 million. We have not been required to post any collateral related to these positions due to our credit rating. If our credit rating was to be downgraded one notch below investment grade by both Moody’s Investors Service, Inc. and Standard & Poor’s Financial Services LLC, as defined in our ISDAs, we estimate that as of March 31, 2024, we would not be required to post collateral to any counterparties per the terms of our ISDAs.

The fair value of our derivative instruments, depending on the type of instrument, was determined by the use of present value methods or standard option valuation models with assumptions about commodity prices based on those observed in underlying markets. The estimated fair value of our derivative instruments was a net liability of $26.9 million as of March 31, 2024. The estimated fair value is net of an adjustment for credit risk based on the default probabilities as indicated by market quotes for the counterparties’ credit default swap rates. The credit risk adjustment was immaterial for all periods presented. Our futures contracts that are cleared through an exchange are margined daily and do not require any credit adjustment.

The following tables reflect amounts recorded in Other comprehensive income (“OCI”) and amounts reclassified from OCI to revenue for the periods indicated:

	Gain (Loss) Recognized in OCI on Derivatives (Effective Portion)
Derivatives in Cash Flow	Three Months Ended March 31,
Hedging Relationships	2024			2023
Commodity contracts	$	(70.3	)	$	83.9

17

	Gain (Loss) Reclassified from OCI into Income (Effective Portion)
	Three Months Ended March 31,
Location of Gain (Loss)	2024			2023
Revenues	$	(3.2	)	$	45.2

Based on valuations as of March 31, 2024, we expect to reclassify commodity hedge-related deferred gains of $36.4 million included in accumulated other comprehensive income (loss) into earnings before income taxes through the end of 2026, with $32.8 million of gains to be reclassified over the next twelve months.

Our consolidated earnings are also affected by the use of the mark-to-market method of accounting for derivative instruments that do not qualify for hedge accounting or that have not been designated as hedges. The changes in fair value of these instruments are recorded on the balance sheet and through earnings rather than being deferred until the anticipated transaction settles. The use of mark-to-market accounting for financial assets and liabilities (“financial instruments”) can cause non-cash earnings volatility due to changes in the underlying commodity price indices. For the three months ended March 31, 2024, the unrealized mark-to-market losses are primarily attributable to unfavorable movements in natural gas forward basis prices, as compared to our positions.

	Location of Gain (Loss)	Gain (Loss) Recognized in Income on Derivatives
Derivatives Not Designated	Recognized in Income on	Three Months Ended March 31,
as Hedging Instruments	Derivatives	2024			2023
Commodity contracts	Revenue	$	(31.9	)	$	178.0

See Note 11 – Fair Value Measurements and Note 16 – Segment Information for additional disclosures related to derivative instruments and hedging activities.

Note 11 — Fair Value Measurements

Under GAAP, our Consolidated Balance Sheets reflect a mixture of measurement methods for financial instruments. Derivative financial instruments are reported at fair value on our Consolidated Balance Sheets. Other financial instruments are reported at historical cost or amortized cost on our Consolidated Balance Sheets. The following are additional qualitative and quantitative disclosures regarding fair value measurements of financial instruments.

Fair Value of Derivative Financial Instruments

Our derivative instruments consist of financially settled commodity swaps, futures, option contracts and fixed-price forward commodity contracts with certain counterparties. We determine the fair value of our derivative instruments using present value methods or standard option valuation models with assumptions about commodity prices based on those observed in underlying markets. We have consistently applied these valuation techniques in all periods presented and we believe we have obtained the most accurate information available for the types of derivative instruments we hold.

The fair values of our derivative instruments are sensitive to changes in forward pricing on natural gas, NGLs and crude oil. The derivatives at March 31, 2024, represent a net liability position of $26.9 million, and reflects the present value, adjusted for counterparty credit risk, of the amount we expect to receive or pay in the future on our derivative instruments. If forward pricing on natural gas, NGLs and crude oil were to increase by 10%, the result would be a fair value reflecting a net liability of $137.9 million. If forward pricing on natural gas, NGLs and crude oil were to decrease by 10%, the result would be a fair value reflecting a net asset of $84.2 million.

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Fair Value of Other Financial Instruments

Due to their cash or near-cash nature, the carrying value of other financial instruments included in working capital (i.e., cash and cash equivalents, accounts receivable, accounts payable) approximates their fair value. Long-term debt is primarily the other financial instrument for which carrying value could vary significantly from fair value. We determined the supplemental fair value disclosures for our long-term debt as follows:

•the TRGP Revolver, commercial paper notes, Securitization Facility and Term Loan Facility are based on carrying value, which approximates fair value as their interest rates are based on prevailing market rates; and

•the TRGP senior unsecured notes and the Partnership’s senior unsecured notes are based on quoted market prices derived from trades of the debt.

Fair Value Hierarchy

We categorize the inputs to the fair value measurements of financial assets and liabilities at each balance sheet reporting date using a three-tier fair value hierarchy that prioritizes the significant inputs used in measuring fair value:

•Level 1 – observable inputs such as quoted prices in active markets;

•Level 2 – inputs other than quoted prices in active markets that we can directly or indirectly observe to the extent that the markets are liquid for the relevant settlement periods; and

•Level 3 – unobservable inputs in which little or no market data exists, therefore we must develop our own assumptions.

The following table shows a breakdown by fair value hierarchy category for (i) financial instruments measurements included on our Consolidated Balance Sheets at fair value, and (ii) supplemental fair value disclosures for other financial instruments:

	March 31, 2024
	Carrying		Fair Value
	Value		Total		Level 1		Level 2		Level 3
Financial Instruments Recorded on Our Consolidated Balance Sheets at Fair Value:
Assets from commodity derivative contracts (1)	$	86.6	$	86.6	$	—	$	86.6	$	—
Liabilities from commodity derivative contracts (1)		113.5		113.5		—		113.5		—
Financial Instruments Recorded on Our Consolidated Balance Sheets at Carrying Value:
Cash and cash equivalents		109.9		109.9		—		—		—
TRGP Revolver and Commercial Paper Program		360.0		360.0		—		360.0		—
TRGP Senior unsecured notes		6,470.3		6,555.0		—		6,555.0		—
Term Loan Facility		500.0		500.0		—		500.0		—
Partnership’s Senior unsecured notes		5,034.4		4,907.3		—		4,907.3		—
Securitization Facility		500.0		500.0		—		500.0		—

	December 31, 2023
	Carrying		Fair Value
	Value		Total		Level 1		Level 2		Level 3
Financial Instruments Recorded on Our Consolidated Balance Sheets at Fair Value:
Assets from commodity derivative contracts (1)	$	144.6	$	144.6	$	—	$	144.6	$	—
Liabilities from commodity derivative contracts (1)		70.2		70.2		—		70.2		—
Financial Instruments Recorded on Our Consolidated Balance Sheets at Carrying Value:
Cash and cash equivalents		141.7		141.7		—		—		—
TRGP Revolver and Commercial Paper Program		175.0		175.0		—		175.0		—
TRGP Senior unsecured notes		6,470.5		6,598.7		—		6,598.7		—
Term Loan Facility		500.0		500.0		—		500.0		—
Partnership’s Senior unsecured notes		5,034.4		4,945.1		—		4,945.1		—
Securitization Facility		575.0		575.0		—		575.0		—

(1)The fair value of derivative contracts in this table is presented on a different basis than the Consolidated Balance Sheets presentation as disclosed in Note 10 – Derivative Instruments and Hedging Activities. The above fair values reflect the total value of each derivative contract taken as a whole, whereas the Consolidated Balance Sheets presentation is based on the individual maturity dates of estimated future settlements. As such, an individual contract could have both an asset and liability position when segregated into its current and long-term portions for Consolidated Balance Sheets classification purposes.

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Additional Information Regarding Level 3 Fair Value Measurements Included on Our Consolidated Balance Sheets

We have historically reported certain of our swaps and option contracts at fair value using Level 3 inputs due to such derivatives not having observable market prices or implied volatilities for substantially the full term of the derivative asset or liability. For valuations that include both observable and unobservable inputs, if the unobservable input was determined to be significant to the overall inputs, the entire valuation was categorized in Level 3. This included derivatives valued using indicative price quotations whose contract length extends into unobservable periods.

The fair value of these swaps was determined using a discounted cash flow valuation technique based on a commodity forward curve. For these derivatives, the primary input to the valuation model was the commodity forward curve, which was based on observable or public data sources and extrapolated when observable prices were not available.

The significant unobservable inputs used in the fair value measurements of our Level 3 derivatives were the forward natural gas liquids pricing curves, for which a significant portion of the derivative’s term is beyond available forward pricing. As of March 31, 2024 and December 31, 2023, we had no derivative contracts categorized as Level 3.

Note 12 — Contingencies

Legal Proceedings

We and the Partnership are parties to various legal, administrative and regulatory proceedings that have arisen in the ordinary course of our business. We and the Partnership are also parties to various proceedings with governmental environmental agencies, including, but not limited to the U.S. Environmental Protection Agency, Texas Commission on Environmental Quality, Oklahoma Department of Environmental Quality, New Mexico Environment Department, Louisiana Department of Environmental Quality and North Dakota Department of Environmental Quality, which assert monetary sanctions for alleged violations of environmental regulations, including air emissions, discharges into the environment and reporting deficiencies, related to events that have arisen at certain of our facilities in the ordinary course of our business.

On December 26, 2018, Vitol filed a lawsuit in the 80th District Court of Harris County (the “District Court”), Texas against Targa Channelview LLC, then a subsidiary of the Company (“Targa Channelview”), seeking recovery of $129.0 million in payments made to Targa Channelview, additional monetary damages, attorneys’ fees and costs. Vitol alleged that Targa Channelview breached the Splitter Agreement, which provided for Targa Channelview to construct a crude oil and condensate splitter (the “Splitter”) adjacent to a barge dock owned by Targa Channelview to provide services contemplated by the Splitter Agreement. In January 2018, Vitol acquired Noble Americas Corp. and on December 23, 2018, Vitol voluntarily elected to terminate the Splitter Agreement claiming that Targa Channelview failed to timely achieve start-up of the Splitter. Vitol’s lawsuit also alleged Targa Channelview made a series of misrepresentations about the capability of the barge dock that would service crude oil and condensate volumes to be processed by the Splitter and Splitter products. Vitol sought return of $129.0 million in payments made to Targa Channelview prior to the start-up of the Splitter, as well as additional damages. On the same date that Vitol filed its lawsuit, Targa Channelview filed a lawsuit against Vitol seeking a judicial determination that Vitol’s sole and exclusive remedy was Vitol’s voluntarily termination of the Splitter Agreement and, as a result, Vitol was not entitled to the return of any prior payments under the Splitter Agreement or other damages as alleged. Targa also sought recovery of its attorneys’ fees and costs in the lawsuit.

On October 15, 2020, the District Court awarded Vitol $129.0 million (plus interest) following a bench trial. In addition, the District Court awarded Vitol $10.5 million in damages for losses and demurrage on crude oil that Vitol purchased for start-up efforts. The Company appealed the award in the Fourteenth Court of Appeals in Houston, Texas. In October 2020, we sold Targa Channelview but, under the agreements governing the sale, we retained the liabilities associated with the Vitol proceedings. On September 13, 2022, the Fourteenth Court of Appeals upheld the trial court’s judgment in part with regard to the return of Vitol’s prior payments, but modified the judgment to delete Vitol’s ability to recover any damages related to losses or demurrage on crude oil. We filed a petition for review with the Supreme Court of Texas, which was denied on October 20, 2023. We then filed a petition for rehearing with the Supreme Court of Texas, which was denied on April 19, 2024. As a result of the April 2024 ruling, the $129.0 million payments from Vitol were reclassified from Other long-term liabilities to Accrued liabilities on our Consolidated Balance Sheets as of March 31, 2024. Additionally, cumulative interest on the award of $54.9 million was recorded in Interest expense, net on our Consolidated Statements of Operations for the three months ended March 31, 2024. See Note 7 – Other Long-term Liabilities.

On July 24, 2023, we received a Notice of Violation from the New Mexico Environment Department, Air Quality Bureau, relating to alleged air permit violations between August 1, 2021 and June 30, 2022 by Lucid Energy Delaware, LLC, an entity we subsequently acquired in July 2022 in the Delaware Basin Acquisition and whose assets are now integrated into Targa Northern Delaware LLC, a wholly-owned subsidiary of the Company. We have been engaging with the New Mexico Environment Department to resolve this matter. Although this matter is ongoing and management cannot predict its ultimate outcome, the resolution of this matter may result in

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a fine or penalty in excess of $0.3 million. We do not expect that any expenditures related to this matter will be material to our consolidated financial statements.

On October 26, 2023, we received a final judgment in a lawsuit alleging a breach of contract related to the major winter storm in February 2021. The damages awarded against us are approximately $6.9 million, not including pre-judgment interest. Both parties are appealing the judgment.

We are also a defendant in two other breach of contract cases related to force majeure events arising during the major winter storm in February 2021. We believe that the likelihood of a partial loss could be reasonably possible, and, while it is not possible to predict the ultimate outcome of these cases on an individual or consolidated basis, we estimate that the total range of potential loss resulting from all of these cases could be between $0 and $10.0 million in the aggregate. We intend to continue to vigorously defend these cases.

Note 13 — Revenue

Fixed consideration allocated to remaining performance obligations

The following table presents the estimated minimum revenue related to unsatisfied performance obligations at the end of the reporting period and is comprised of fixed consideration primarily attributable to contracts with minimum volume commitments, for which a guaranteed amount of revenue can be calculated. These contracts are comprised primarily of gathering and processing, fractionation, export, terminaling and storage agreements, with remaining contract terms ranging from 1 to 15 years.

	2024		2025		2026 and after
Fixed consideration to be recognized as of March 31, 2024	$	379.2	$	432.4	$	2,406.1

Based on the optional exemptions that we elected to apply, the amounts presented in the table above exclude remaining performance obligations for (i) variable consideration for which the allocation exception is met and (ii) contracts with an original expected duration of one year or less.

For disclosures related to disaggregated revenue, see Note 16 – Segment Information.

Note 14 — Income Taxes

We record income taxes using an estimated annual effective tax rate and recognize specific events discretely as they occur. Our effective tax rate for the three months ended March 31, 2024 is lower than the U.S. corporate statutory rate of 21% primarily due to income allocated to noncontrolling interests that is not taxable to the Company and excess tax-deductible stock compensation. The effective tax rate for the three months ended March 31, 2023 was lower than the U.S. corporate statutory rate of 21% primarily due to the release of a portion of our state tax valuation allowances in addition to income allocated to noncontrolling interests that is not taxable to the Company.

We regularly evaluate the realizable tax benefits of deferred tax assets and record a valuation allowance, if required, based on an estimate of the amount of deferred tax assets that we believe does not meet the more-likely-than-not criteria of being realized. As of March 31, 2024 and December 31, 2023, our valuation allowance was $7.1 million.

We are subject to tax in the U.S. and various state jurisdictions and we are subject to periodic audits and reviews by taxing authorities. As of March 31, 2024, Internal Revenue Service (“IRS”) examinations are currently in process for the 2019, 2020 and 2021 taxable years of certain wholly-owned and consolidated subsidiaries that are treated as partnerships for U.S. federal income tax purposes. We are responding to information requests from the IRS with respect to these audits. We are not aware of any potential audit findings that would give rise to adjustments to taxable income and do not anticipate material changes related to these audits.

Note 15 — Supplemental Cash Flow Information

	Three Months Ended March 31,
	2024		2023
Cash:
Interest paid, net of capitalized interest (1)	$	268.2	$	211.6
Income taxes (received) paid, net		0.3		0.1
Non-cash investing activities:
Impact of capital expenditure accruals on property, plant and equipment, net	$	54.4	$	(21.4	)
Non-cash financing activities:
Changes in accrued distributions to noncontrolling interests	$	2.6	$	8.8

(1)Interest capitalized on major projects was $16.2 million and $6.7 million for the three months ended March 31, 2024 and 2023.

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Note 16 — Segment Information

We operate in two primary segments: (i) Gathering and Processing, and (ii) Logistics and Transportation (also referred to as the Downstream Business). Our reportable segments include operating segments that have been aggregated based on the nature of the products and services provided.

Our Gathering and Processing segment includes assets used in the gathering and/or purchase and sale of natural gas produced from oil and gas wells, removing impurities and processing this raw natural gas into merchantable natural gas by extracting NGLs; and assets used for the gathering and terminaling and/or purchase and sale of crude oil. The Gathering and Processing segment’s assets are located in the Permian Basin of West Texas and Southeast New Mexico (including the Midland, Central and Delaware Basins); the Eagle Ford Shale in South Texas; the Barnett Shale in North Texas; the Anadarko, Ardmore, and Arkoma Basins in Oklahoma (including the SCOOP and STACK) and South Central Kansas; the Williston Basin in North Dakota (including the Bakken and Three Forks plays); and the onshore and near offshore regions of the Louisiana Gulf Coast and the Gulf of Mexico.

Our Logistics and Transportation segment includes the activities and assets necessary to convert mixed NGLs into NGL products and also includes other assets and value-added services such as transporting, storing, fractionating, terminaling, and marketing of NGLs and NGL products, including services to LPG exporters and certain natural gas supply and marketing activities in support of our other businesses. The Logistics and Transportation segment also includes Grand Prix, which connects our gathering and processing positions in the Permian Basin, Southern Oklahoma and North Texas with our Downstream facilities in Mont Belvieu, Texas. The associated assets are generally connected to and supplied in part by our Gathering and Processing segment and, except for pipelines and smaller terminals, are located predominantly in Mont Belvieu and Galena Park, Texas, and in Lake Charles, Louisiana.

Other contains the unrealized mark-to-market gains/losses related to derivative contracts that were not designated as cash flow hedges. Elimination of inter-segment transactions are reflected in the corporate and eliminations column.

Reportable segment information is shown in the following tables:

	Three Months Ended March 31, 2024
	Gathering and Processing			Logistics and Transportation		Other			Corporate and Eliminations			Total
Revenues
Sales of commodities	$	272.7		$	3,702.4	$	(22.1	)	$	—		$	3,953.0
Fees from midstream services		413.3			196.1		—			—			609.4
		686.0			3,898.5		(22.1	)		—			4,562.4
Intersegment revenues
Sales of commodities		1,130.6			46.9		—			(1,177.5	)		—
Fees from midstream services		(1.8	)		6.9		—			(5.1	)		—
		1,128.8			53.8		—			(1,182.6	)		—
Revenues	$	1,814.8		$	3,952.3	$	(22.1	)	$	(1,182.6	)	$	4,562.4
Operating margin (1)	$	556.4		$	532.1	$	(22.1	)
Other financial information:
Total assets (2)	$	12,815.6		$	7,870.1	$	3.1		$	157.3		$	20,846.1
Goodwill	$	45.2		$	—	$	—		$	—		$	45.2
Capital expenditures	$	435.0		$	293.6	$	—		$	1.1		$	729.7

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	Three Months Ended March 31, 2023
	Gathering and Processing		Logistics and Transportation		Other		Corporate and Eliminations			Total
Revenues
Sales of commodities	$	287.9	$	3,561.3	$	175.8	$	—		$	4,025.0
Fees from midstream services		320.4		175.1		—		—			495.5
		608.3		3,736.4		175.8		—			4,520.5
Intersegment revenues
Sales of commodities		1,347.0		78.2		—		(1,425.2	)		—
Fees from midstream services		0.5		10.8		—		(11.3	)		—
		1,347.5		89.0		—		(1,436.5	)		—
Revenues	$	1,955.8	$	3,825.4	$	175.8	$	(1,436.5	)	$	4,520.5
Operating margin (1)	$	538.4	$	529.1	$	175.8
Other financial information:
Total assets (2)	$	12,199.9	$	6,558.4	$	4.2	$	263.0		$	19,025.5
Goodwill	$	45.2	$	—	$	—	$	—		$	45.2
Capital expenditures	$	269.5	$	176.6	$	—	$	8.2		$	454.3

(1)Operating margin is calculated by subtracting Product purchases and fuel and Operating expenses from Revenues.

(2)Assets in the Corporate and Eliminations column primarily include tax-related assets, cash, prepaids and debt issuance costs for our revolving credit facility.

The following table shows our consolidated revenues disaggregated by product and service for the periods presented:

	Three Months Ended March 31,
	2024			2023
Sales of commodities:
Revenue recognized from contracts with customers:
Natural gas	$	494.6		$	816.1
NGL		3,356.3			2,864.5
Condensate and crude oil		137.2			121.2
		3,988.1			3,801.8
Non-customer revenue:
Derivative activities - Hedge		(3.2	)		45.2
Derivative activities - Non-hedge (1)		(31.9	)		178.0
		(35.1	)		223.2
Total sales of commodities		3,953.0			4,025.0
Fees from midstream services:
Revenue recognized from contracts with customers:
Gathering and processing		405.9			315.5
NGL transportation, fractionation and services		63.0			56.1
Storage, terminaling and export		125.7			108.8
Other		14.8			15.1
Total fees from midstream services		609.4			495.5
Total revenues	$	4,562.4		$	4,520.5

(1)Represents derivative activities that are not designated as hedging instruments under ASC 815.

The following table shows a reconciliation of reportable segment Operating margin to Income (loss) before income taxes for the periods presented:

	Three Months Ended March 31,
	2024			2023
Reconciliation of reportable segment operating margin to income (loss) before income taxes:
Gathering and Processing operating margin	$	556.4		$	538.4
Logistics and Transportation operating margin		532.1			529.1
Other operating margin		(22.1	)		175.8
Depreciation and amortization expense		(340.5	)		(324.8	)
General and administrative expense		(86.5	)		(82.4	)
Other operating income (expense)		—			0.6
Interest expense, net		(228.6	)		(168.0	)
Equity earnings (loss)		2.8			(0.2	)
Other, net		1.7			(3.0	)
Income (loss) before income taxes	$	415.3		$	665.5

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Item 2. Management’s Discussion and Analysis of Financial Condition and Results of Operations.

The following discussion and analysis of our financial condition and results of operations should be read in conjunction with Management’s Discussion and Analysis of Financial Condition and Results of Operations contained in our Annual Report on Form 10-K for the year ended December 31, 2023 (“Annual Report”), as well as the unaudited consolidated financial statements and notes hereto included in this Quarterly Report on Form 10-Q for the quarter ended March 31, 2024 (“Quarterly Report”).

Overview

Targa Resources Corp. (NYSE: TRGP) is a publicly traded Delaware corporation formed in October 2005. Targa is a leading provider of midstream services and is one of the largest independent midstream infrastructure companies in North America. We own, operate, acquire, and develop a diversified portfolio of complementary domestic midstream infrastructure assets.

Our Operations

We are engaged primarily in the business of:

•gathering, compressing, treating, processing, transporting, and purchasing and selling natural gas;

•transporting, storing, fractionating, treating, and purchasing and selling NGLs and NGL products, including services to LPG exporters; and

•gathering, storing, terminaling, and purchasing and selling crude oil.

To provide these services, we operate in two primary segments: (i) Gathering and Processing, and (ii) Logistics and Transportation (also referred to as the Downstream Business).

Our Gathering and Processing segment includes assets used in the gathering and/or purchase and sale of natural gas produced from oil and gas wells, removing impurities and processing this raw natural gas into merchantable natural gas by extracting NGLs; and assets used for the gathering and terminaling and/or purchase and sale of crude oil. The Gathering and Processing segment’s assets are located in the Permian Basin of West Texas and Southeast New Mexico (including the Midland, Central and Delaware Basins); the Eagle Ford Shale in South Texas; the Barnett Shale in North Texas; the Anadarko, Ardmore, and Arkoma Basins in Oklahoma (including the SCOOP and STACK) and South Central Kansas; the Williston Basin in North Dakota (including the Bakken and Three Forks plays); and the onshore and near offshore regions of the Louisiana Gulf Coast and the Gulf of Mexico.

Our Logistics and Transportation segment includes the activities and assets necessary to convert mixed NGLs into NGL products and also includes other assets and value-added services such as transporting, storing, fractionating, terminaling, and marketing of NGLs and NGL products, including services to LPG exporters and certain natural gas supply and marketing activities in support of our other businesses. The Logistics and Transportation segment also includes the Grand Prix NGL Pipeline (“Grand Prix”), which connects our gathering and processing positions in the Permian Basin, Southern Oklahoma and North Texas with our Downstream facilities in Mont Belvieu, Texas. Our Downstream facilities are located predominantly in Mont Belvieu and Galena Park, Texas, and in Lake Charles, Louisiana.

Other contains the unrealized mark-to-market gains/losses related to derivative contracts that were not designated as cash flow hedges.

Recent Developments

In response to increasing production and to meet the infrastructure needs of producers and our downstream customers, our major expansion projects include the following:

Permian Midland Processing Expansions

•In August 2023, we announced the construction of a new 275 MMcf/d cryogenic natural gas processing plant in Permian Midland (the “Greenwood II plant”). The Greenwood II plant is expected to begin operations in the fourth quarter of 2024.

•In May 2024, we announced the construction of a new 275 MMcf/d cryogenic natural gas processing plant in Permian Midland (the “Pembrook II plant”). The Pembrook II plant is expected to begin operations in the fourth quarter of 2025.

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Permian Delaware Processing Expansions

•In February 2023, we announced the transfer of an existing cryogenic natural gas processing plant acquired in the purchase of Southcross Energy Operating LLC and its subsidiaries to the Permian Delaware. The plant will be installed as a new 230 MMcf/d cryogenic natural gas processing plant (the “Roadrunner II plant”). The Roadrunner II plant is expected to begin operations in the second quarter of 2024.

•In August 2023, we announced the construction of a new 275 MMcf/d cryogenic natural gas processing plant in Permian Delaware (the “Bull Moose plant”). The Bull Moose plant is expected to begin operations in the second quarter of 2025.

Fractionation Expansion

•In August 2022, we announced plans to construct a new 120 MBbl/d fractionation train in Mont Belvieu, Texas (“Train 9”). Train 9 is expected to begin operations in the second quarter of 2024.

•In January 2023, we reached an agreement with our partners in Gulf Coast Fractionators (“GCF”) to reactivate GCF’s 135 MBbl/d fractionation facility. The facility is expected to be operational in the second quarter of 2024.

•In May 2023, we announced plans to construct a new 120 MBbl/d fractionation train in Mont Belvieu, Texas (“Train 10”). Train 10 is expected to begin operations in the first quarter of 2025.

•In May 2024, we announced plans to construct a new 150 MBbl/d fractionation train in Mont Belvieu, Texas (“Train 11”). Train 11 is expected to begin operations in the third quarter of 2026.

NGL Pipeline Expansion

•In November 2022, we announced plans to construct a new NGL pipeline (the “Daytona NGL Pipeline”) as an addition to our common carrier Grand Prix system. The pipeline will transport NGLs from the Permian Basin and connect to the 30-inch diameter segment of Grand Prix in North Texas, where volumes will be transported to our fractionation and storage complex in the NGL market hub at Mont Belvieu, Texas. The Daytona NGL Pipeline is expected to be in service in the fourth quarter of 2024.

Capital Allocation

In April 2024, we declared an increase to our common dividend to $0.75 per common share, or $3.00 per common share annualized effective for the first quarter of 2024.

In May 2023, our Board of Directors authorized a $1.0 billion common share repurchase program (the “2023 Share Repurchase Program”). For the three months ended March 31, 2024, we repurchased 1,186,444 shares of our common stock at a weighted average per share price of $104.26 for a total net cost of $123.7 million. As of March 31, 2024, there was $646.4 million remaining under the 2023 Share Repurchase Program. We are not obligated to repurchase any specific dollar amount or number of shares under the 2023 Share Repurchase Program and may discontinue the program at any time.

Corporation Tax Matters

As of March 31, 2024, Internal Revenue Service (the “IRS”) examinations are currently in process for the 2019, 2020 and 2021 taxable years of certain wholly-owned and consolidated subsidiaries that are treated as partnerships for U.S federal income tax purposes. We are responding to information requests from the IRS with respect to these audits. We are not aware of any potential audit findings that would give rise to adjustments to taxable income and do not anticipate material changes related to these audits.

Federal statutes of limitations for returns filed in 2020 (for calendar year 2019) have expired, except for the 2019 returns under examination that have a statute extension to April 2025. For Texas, the statute of limitations has expired for 2019 returns (for calendar year 2018). Similarly, the statute of limitations expired on substantially all 2019 state income tax returns that were filed prior to October 15, 2020. However, tax authorities could review and adjust carryover attributes (e.g., net operating losses) generated in a closed tax year if utilized in an open tax year.

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Recent Accounting Pronouncements

For a discussion of recent accounting pronouncements that will affect us, see “Recent Accounting Pronouncements” included within Note 3 – Significant Accounting Policies to our Consolidated Financial Statements.

How We Evaluate Our Operations

The profitability of our business is a function of the difference between: (i) the revenues we receive from our operations, including fee-based revenues from services and revenues from the natural gas, NGLs, crude oil and condensate we sell, and (ii) the costs associated with conducting our operations, including the costs of wellhead natural gas, crude oil and mixed NGLs that we purchase as well as operating, general and administrative costs and the impact of our commodity hedging activities. Because commodity price movements tend to impact both revenues and costs, increases or decreases in our revenues alone are not necessarily indicative of increases or decreases in our profitability. Our contract portfolio, the prevailing pricing environment for crude oil, natural gas and NGLs, the impact of our commodity hedging program and its ability to mitigate exposure to commodity price movements, and the volumes of crude oil, natural gas and NGL throughput on our systems are important factors in determining our profitability. Our profitability is also affected by the NGL content in gathered wellhead natural gas, supply and demand for our products and services, utilization of our assets and changes in our customer mix.

Our profitability is also impacted by fee-based contracts. Our growing capital expenditures for pipelines and gathering and processing assets underpinned by fee-based margin, expansion of our Downstream facilities, continued focus on adding fee-based margin to our existing and future gathering and processing contracts, as well as third-party acquisitions of businesses and assets, will continue to increase the number of our contracts that are fee-based. Fixed fees for services such as gathering and processing, transportation, fractionation, storage, terminaling and crude oil gathering are not directly tied to changes in market prices for commodities. Nevertheless, a change in market dynamics such as available commodity throughput does affect profitability.

Management uses a variety of financial measures and operational measurements to analyze our performance. These include: (i) throughput volumes, facility efficiencies and fuel consumption, (ii) operating expenses, (iii) capital expenditures and (iv) the following non-GAAP measures: adjusted EBITDA, adjusted cash flow from operations, adjusted free cash flow and adjusted operating margin (segment).

Throughput Volumes, Facility Efficiencies and Fuel Consumption

Our profitability is impacted by our ability to add new sources of natural gas supply and crude oil supply to offset the natural decline of existing volumes from oil and natural gas wells that are connected to our gathering and processing systems. This is achieved by connecting new wells and adding new volumes in existing areas of production, as well as by capturing crude oil and natural gas supplies currently gathered by third parties. Similarly, our profitability is impacted by our ability to add new sources of mixed NGL supply, connected by third-party transportation and Grand Prix, to our Downstream Business fractionation facilities and at times to our export facilities. We fractionate NGLs generated by our gathering and processing plants, as well as by contracting for mixed NGL supply from third-party facilities.

In addition, we seek to increase adjusted operating margin by limiting volume losses, reducing fuel consumption and by increasing efficiency. With our gathering systems’ extensive use of remote monitoring capabilities, we monitor the volumes received at the wellhead or central delivery points along our gathering systems, the volume of natural gas received at our processing plant inlets and the volumes of NGLs and residue natural gas recovered by our processing plants. We also monitor the volumes of NGLs received, stored, fractionated and delivered across our logistics assets. This information is tracked through our processing plants and Downstream Business facilities to determine customer settlements for sales and volume related fees for service and helps us increase efficiency and reduce fuel consumption.

As part of monitoring the efficiency of our operations, we measure the difference between the volume of natural gas received at the wellhead or central delivery points on our gathering systems and the volume received at the inlet of our processing plants as an indicator of fuel consumption and line loss. We also track the difference between the volume of natural gas received at the inlet of the processing plant and the NGLs and residue gas produced at the outlet of such plant to monitor the fuel consumption and recoveries of our facilities. Similar tracking is performed for our crude oil gathering and logistics assets and our NGL pipelines. These volume, recovery and fuel consumption measurements are an important part of our operational efficiency analysis and safety programs.

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Operating Expenses

Operating expenses are costs associated with the operation of specific assets. Labor, contract services, repair and maintenance and ad valorem taxes comprise the most significant portion of our operating expenses. These expenses remain relatively stable and independent of the volumes through our systems, but may increase with system expansions and inflation, and will fluctuate depending on the scope of the activities performed during a specific period.

Capital Expenditures

Our capital expenditures are classified as growth capital expenditures and maintenance capital expenditures. Growth capital expenditures improve the service capability of the existing assets, extend asset useful lives, increase capacities from existing levels, add capabilities, and reduce costs or enhance revenues. Maintenance capital expenditures are those expenditures that are necessary to maintain the service capability of our existing assets, including the replacement of system components and equipment, which are worn, obsolete or completing their useful life and expenditures to remain in compliance with environmental laws and regulations.

Capital spending associated with growth and maintenance projects is closely monitored. Return on investment is analyzed before a capital project is approved, spending is closely monitored throughout the development of the project, and the subsequent operational performance is compared to the assumptions used in the economic analysis performed for the capital investment approval.

Non-GAAP Measures

We utilize non-GAAP measures to analyze our performance. Adjusted EBITDA, adjusted cash flow from operations, adjusted free cash flow and adjusted operating margin (segment) are non-GAAP measures. The GAAP measures most directly comparable to these non-GAAP measures are income (loss) from operations, Net income (loss) attributable to Targa Resources Corp. and segment operating margin. These non-GAAP measures should not be considered as an alternative to GAAP measures and have important limitations as analytical tools. Investors should not consider these measures in isolation or as a substitute for analysis of our results as reported under GAAP. Additionally, because our non-GAAP measures exclude some, but not all, items that affect income and segment operating margin, and are defined differently by different companies within our industry, our definitions may not be comparable with similarly titled measures of other companies, thereby diminishing their utility. Management compensates for the limitations of our non-GAAP measures as analytical tools by reviewing the comparable GAAP measures, understanding the differences between the measures and incorporating these insights into our decision-making processes.

Adjusted Operating Margin

We define adjusted operating margin for our segments as revenues less product purchases and fuel. It is impacted by volumes and commodity prices as well as by our contract mix and commodity hedging program.

Gathering and Processing adjusted operating margin consists primarily of:

•service fees related to natural gas and crude oil gathering, treating and processing; and

•revenues from the sale of natural gas, condensate, crude oil and NGLs less producer settlements, fuel and transport and our equity volume hedge settlements.

Logistics and Transportation adjusted operating margin consists primarily of:

•service fees (including the pass-through of energy costs included in certain fee rates);

•system product gains and losses; and

•NGL and natural gas sales, less NGL and natural gas purchases, fuel, third-party transportation costs and the net inventory change.

The adjusted operating margin impacts of mark-to-market hedge unrealized changes in fair value are reported in Other.

Adjusted operating margin for our segments provides useful information to investors because it is used as a supplemental financial measure by management and by external users of our financial statements, including investors and commercial banks, to assess:

•the financial performance of our assets without regard to financing methods, capital structure or historical cost basis;

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•our operating performance and return on capital as compared to other companies in the midstream energy sector, without regard to financing or capital structure; and

•the viability of capital expenditure projects and acquisitions and the overall rates of return on alternative investment opportunities.

Management reviews adjusted operating margin and operating margin for our segments monthly as a core internal management process. We believe that investors benefit from having access to the same financial measures that management uses in evaluating our operating results. The reconciliation of our adjusted operating margin to the most directly comparable GAAP measure is presented under “Management’s Discussion and Analysis of Financial Condition and Results of Operations – Results of Operations – By Reportable Segment.”

Adjusted EBITDA

We define adjusted EBITDA as Net income (loss) attributable to Targa Resources Corp. before interest, income taxes, depreciation and amortization, and other items that we believe should be adjusted consistent with our core operating performance. The adjusting items are detailed in the adjusted EBITDA reconciliation table and its footnotes. Adjusted EBITDA is used as a supplemental financial measure by us and by external users of our financial statements such as investors, commercial banks and others to measure the ability of our assets to generate cash sufficient to pay interest costs, support our indebtedness and pay dividends to our investors.

Adjusted Cash Flow from Operations and Adjusted Free Cash Flow

We define adjusted cash flow from operations as adjusted EBITDA less cash interest expense on debt obligations and cash tax (expense) benefit. We define adjusted free cash flow as adjusted cash flow from operations less maintenance capital expenditures (net of any reimbursements of project costs) and growth capital expenditures, net of contributions from noncontrolling interest and contributions to investments in unconsolidated affiliates. Adjusted cash flow from operations and adjusted free cash flow are performance measures used by us and by external users of our financial statements, such as investors, commercial banks and research analysts, to assess our ability to generate cash earnings (after servicing our debt and funding capital expenditures) to be used for corporate purposes, such as payment of dividends, retirement of debt or redemption of other financing arrangements.

Our Non-GAAP Financial Measures

The following tables reconcile the non-GAAP financial measures used by management to the most directly comparable GAAP measures for the periods indicated:

	Three Months Ended March 31,
	2024			2023
	(In millions)
Reconciliation of Net income (loss) attributable to Targa Resources Corp. to Adjusted EBITDA, Adjusted Cash Flow from Operations and Adjusted Free Cash Flow
Net income (loss) attributable to Targa Resources Corp.	$	275.2		$	497.0
Interest (income) expense, net		228.6			168.0
Income tax expense (benefit)		82.7			110.3
Depreciation and amortization expense		340.5			324.8
(Gain) loss on sale or disposition of assets		(1.1	)		(1.5	)
Write-down of assets		1.0			0.9
Equity (earnings) loss		(2.8	)		0.2
Distributions from unconsolidated affiliates		6.3			2.6
Compensation on equity grants		14.6			15.0
Risk management activities		22.0			(175.7	)
Noncontrolling interests adjustments (1)		(0.8	)		(1.0	)
Adjusted EBITDA	$	966.2		$	940.6
Interest expense on debt obligations (2)		(224.9	)		(165.1	)
Cash taxes		(2.9	)		(4.3	)
Adjusted Cash Flow from Operations	$	738.4		$	771.2
Maintenance capital expenditures, net (3)		(49.8	)		(41.8	)
Growth capital expenditures, net (3)		(685.8	)		(415.4	)
Adjusted Free Cash Flow	$	2.8		$	314.0

(1)Noncontrolling interest portion of depreciation and amortization expense.

(2)Excludes amortization of interest expense. The three months ended March 31, 2024 includes $54.9 million of interest expense associated with the Splitter Agreement ruling.

(3)Represents capital expenditures, net of contributions from noncontrolling interests and includes contributions to investments in unconsolidated affiliates.

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Consolidated Results of Operations

The following table and discussion is a summary of our consolidated results of operations:

	Three Months Ended March 31,
	2024			2023			2024 vs. 2023
	(In millions)
Revenues:
Sales of commodities	$	3,953.0		$	4,025.0		$	(72.0	)		(2	%)
Fees from midstream services		609.4			495.5			113.9			23	%
Total revenues		4,562.4			4,520.5			41.9			1	%
Product purchases and fuel		3,218.0			3,019.0			199.0			7	%
Operating expenses		278.0			258.2			19.8			8	%
Depreciation and amortization expense		340.5			324.8			15.7			5	%
General and administrative expense		86.5			82.4			4.1			5	%
Other operating (income) expense		—			(0.6	)		0.6			100	%
Income (loss) from operations		639.4			836.7			(197.3	)		(24	%)
Interest expense, net		(228.6	)		(168.0	)		(60.6	)		36	%
Equity earnings (loss)		2.8			(0.2	)		3.0		NM
Other, net		1.7			(3.0	)		4.7			157	%
Income tax (expense) benefit		(82.7	)		(110.3	)		27.6			25	%
Net income (loss)		332.6			555.2			(222.6	)		(40	%)
Less: Net income (loss) attributable to noncontrolling interests		57.4			58.2			(0.8	)		(1	%)
Net income (loss) attributable to Targa Resources Corp.		275.2			497.0			(221.8	)		(45	%)
Premium on repurchase of noncontrolling interests, net of tax		—			490.7			(490.7	)		(100	%)
Net income (loss) attributable to common shareholders	$	275.2		$	6.3		$	268.9		NM
Financial data:
Adjusted EBITDA (1)	$	966.2		$	940.6		$	25.6			3	%
Adjusted cash flow from operations (1)		738.4			771.2			(32.8	)		(4	%)
Adjusted free cash flow (1)		2.8			314.0			(311.2	)		(99	%)

(1)Adjusted EBITDA, adjusted cash flow from operations and adjusted free cash flow are non-GAAP financial measures and are discussed under “Management’s Discussion and Analysis of Financial Condition and Results of Operations – How We Evaluate Our Operations.”

NM Due to a low denominator, the noted percentage change is disproportionately high and as a result, considered not meaningful.

Three Months Ended March 31, 2024 Compared to Three Months Ended March 31, 2023

The decrease in commodity sales reflects lower natural gas and NGL prices ($589.0 million), the unfavorable impact of hedges ($258.4 million) and lower condensate volumes ($7.4 million), partially offset by higher NGL and natural gas volumes ($759.3 million) and higher condensate prices ($23.4 million).

The increase in fees from midstream services is primarily due to higher gas gathering and processing fees, and higher export volumes.

The increase in product purchases and fuel reflects higher NGL and natural gas volumes and higher condensate prices, partially offset by lower natural gas and NGL prices.

The increase in operating expenses is primarily due to higher rental and labor costs as a result of increased activity and system expansions.

See “—Results of Operations—By Reportable Segment” for additional information on a segment basis.

The increase in depreciation and amortization expense is primarily due to the impact of system expansions on our asset base, partially offset by the shortening of depreciable lives of certain assets that were idled in the second quarter of 2023 and subsequently shut down in the third quarter of 2023.

The increase in interest expense, net, is due to recognition of cumulative interest on a 2024 legal ruling associated with the Splitter Agreement and higher borrowings, partially offset by an increase in capitalized interest. See Note 12 – Contingencies for additional information related to the legal ruling.

The decrease in income tax expense is primarily due to a decrease in pre-tax book income.

The premium on repurchase of noncontrolling interests, net of tax is due to the acquisition of Blackstone Energy Partners’ 25% interest in the Grand Prix Joint Venture in 2023 (the “Grand Prix Transaction”).

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Results of Operations—By Reportable Segment

Our operating margins by reportable segment are:

	Gathering and Processing		Logistics and Transportation		Other
	(In millions)
Three Months Ended:
March 31, 2024	$	556.4	$	532.1	$	(22.1	)
March 31, 2023		538.4		529.1		175.8

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Gathering and Processing Segment

	Three Months Ended March 31,
	2024			2023		2024 vs. 2023
		(In millions, except operating statistics and price amounts)
Operating margin	$		556.4	$	538.4	$	18.0		3	%
Operating expenses			188.1		181.4		6.7		4	%
Adjusted operating margin	$		744.5	$	719.8	$	24.7		3	%
Operating statistics (1):
Plant natural gas inlet, MMcf/d (2) (3)
Permian Midland (4)			2,746.1		2,348.6		397.5		17	%
Permian Delaware			2,648.9		2,495.1		153.8		6	%
Total Permian			5,395.0		4,843.7		551.3		11	%
SouthTX (5)			304.9		355.9		(51.0	)	(14	%)
North Texas			184.5		195.5		(11.0	)	(6	%)
SouthOK (5)			357.2		383.9		(26.7	)	(7	%)
WestOK			210.1		204.1		6.0		3	%
Total Central			1,056.7		1,139.4		(82.7	)	(7	%)
Badlands (5) (6)			127.1		131.8		(4.7	)	(4	%)
Total Field			6,578.8		6,114.9		463.9		8	%
Coastal			524.7		509.2		15.5		3	%
Total			7,103.5		6,624.1		479.4		7	%
NGL production, MBbl/d (3)
Permian Midland (4)			392.8		335.0		57.8		17	%
Permian Delaware			307.0		320.8		(13.8	)	(4	%)
Total Permian			699.8		655.8		44.0		7	%
SouthTX (5)			28.9		38.4		(9.5	)	(25	%)
North Texas			21.9		23.0		(1.1	)	(5	%)
SouthOK (5)			28.1		38.8		(10.7	)	(28	%)
WestOK			11.7		13.1		(1.4	)	(11	%)
Total Central			90.6		113.3		(22.7	)	(20	%)
Badlands (5)			14.6		15.4		(0.8	)	(5	%)
Total Field			805.0		784.5		20.5		3	%
Coastal			39.1		36.2		2.9		8	%
Total			844.1		820.7		23.4		3	%
Crude oil, Badlands, MBbl/d			94.4		110.6		(16.2	)	(15	%)
Crude oil, Permian, MBbl/d			27.6		25.5		2.1		8	%
Natural gas sales, BBtu/d (3)			2,650.5		2,572.5		78.0		3	%
NGL sales, MBbl/d (3)			498.8		459.1		39.7		9	%
Condensate sales, MBbl/d			19.1		19.8		(0.7	)	(4	%)
Average realized prices (7):
Natural gas, $/MMBtu			1.50		2.63		(1.13	)	(43	%)
NGL, $/gal			0.48		0.52		(0.04	)	(8	%)
Condensate, $/Bbl			77.22		66.34		10.88		16	%

(1)Segment operating statistics include the effect of intersegment amounts, which have been eliminated from the consolidated presentation. For all volume statistics presented, the numerator is the total volume sold during the period and the denominator is the number of calendar days during the period.

(2)Plant natural gas inlet represents our undivided interest in the volume of natural gas passing through the meter located at the inlet of a natural gas processing plant, other than Badlands.

(3)Plant natural gas inlet volumes and gross NGL production volumes include producer take-in-kind volumes, while natural gas sales and NGL sales exclude producer take-in-kind volumes.

(4)Permian Midland includes operations in WestTX, of which we own a 72.8% undivided interest, and other plants that are owned 100% by us. Operating results for the WestTX undivided interest assets are presented on a pro-rata net basis in our reported financials.

(5)Operations include facilities that are not wholly owned by us.

(6)Badlands natural gas inlet represents the total wellhead volume and includes the Targa volumes processed at the Little Missouri 4 plant.

(7)Average realized prices, net of fees, include the effect of realized commodity hedge gain/loss attributable to our equity volumes. The price is calculated using total commodity sales plus the hedge gain/loss as the numerator and total sales volume as the denominator, net of fees.

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The following table presents the realized commodity hedge gain (loss) attributable to our equity volumes that are included in the adjusted operating margin of the Gathering and Processing segment:

	Three Months Ended March 31, 2024								Three Months Ended March 31, 2023
	(In millions, except volumetric data and price amounts)
	Volume Settled		Price Spread (1)			Gain (Loss)			Volume Settled		Price Spread (1)			Gain (Loss)
Natural gas (BBtu)		14.4	$	1.27		$	18.3			19.7	$	1.35		$	26.5
NGL (MMgal)		134.1		0.01			1.7			184.1		0.05			9.5
Crude oil (MBbl)		0.4		(7.25	)		(2.9	)		0.6		(4.67	)		(2.8	)
						$	17.1							$	33.2

(1)The price spread is the differential between the contracted derivative instrument pricing and the price of the corresponding settled commodity transaction.

Three Months Ended March 31, 2024 Compared to Three Months Ended March 31, 2023

The increase in adjusted operating margin was due to higher natural gas inlet volumes and higher fees in the Permian, partially offset by lower natural gas and NGL prices. The increase in natural gas inlet volumes in the Permian was attributable to the addition of the Legacy II plant during the first quarter of 2023, the Midway plant during the second quarter of 2023, the Greenwood and Wildcat II plants during the fourth quarter of 2023, and continued strong producer activity. Natural gas inlet volumes in the Central region decreased primarily due to lower volumes in SouthTX and lower producer activity in the first quarter of 2024.

The increase in operating expenses was primarily due to higher volumes in the Permian and the addition of the Legacy II, Midway, Greenwood and Wildcat II plants.

Logistics and Transportation Segment

	Three Months Ended March 31,
	2024		2023		2024 vs. 2023
	(In millions, except operating statistics)
Operating margin	$	532.1	$	529.1	$	3.0	1%
Operating expenses		90.0		76.5		13.5	18%
Adjusted operating margin	$	622.1	$	605.6	$	16.5	3%
Operating statistics MBbl/d (1):
NGL pipeline transportation volumes (2)		717.8		536.8		181.0	34%
Fractionation volumes		797.2		758.8		38.4	5%
Export volumes (3)		439.0		373.4		65.6	18%
NGL sales		1,227.6		1,007.6		220.0	22%

(1)Segment operating statistics include intersegment amounts, which have been eliminated from the consolidated presentation. For all volume statistics presented, the numerator is the total volume sold during the period and the denominator is the number of calendar days during the period.

(2)Represents the total quantity of mixed NGLs that earn a transportation margin.

(3)Export volumes represent the quantity of NGL products delivered to third-party customers at our Galena Park Marine Terminal that are destined for international markets.

Three Months Ended March 31, 2024 Compared to Three Months Ended March 31, 2023

The increase in adjusted operating margin was due to higher pipeline transportation and fractionation margin and higher LPG export margin, largely offset by lower marketing margin which benefited from greater seasonal optimization opportunities in the prior year. Pipeline transportation and fractionation volumes benefited from higher supply volumes primarily from our Permian Gathering and Processing systems and higher fees. LPG export margin increased due to higher volumes as the company benefited from the completion of its export expansion during the third quarter of 2023 and the Houston Ship Channel allowing night-time vessel transits.

The increase in operating expenses was due to higher system volumes, higher repairs and maintenance and higher compensation and benefits.

Other

	Three Months Ended March 31,
	2024			2023		2024 vs. 2023
	(In millions)
Operating margin	$	(22.1	)	$	175.8	$	(197.9	)
Adjusted operating margin	$	(22.1	)	$	175.8	$	(197.9	)

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Other contains the results of commodity derivative activity mark-to-market gains/losses related to derivative contracts that were not designated as cash flow hedges. We have entered into derivative instruments to hedge the commodity price associated with a portion of our future commodity purchases and sales and natural gas transportation basis risk within our Logistics and Transportation segment. See further details of our risk management program in “Item 3. – Quantitative and Qualitative Disclosures About Market Risk.”

Our Liquidity and Capital Resources

As of March 31, 2024, inclusive of our consolidated joint venture accounts, we had $109.9 million of Cash and cash equivalents on our Consolidated Balance Sheets. We believe our cash positions, our cash flows from operating activities, our free cash flow after dividends and remaining borrowing capacity on our credit facilities (discussed below in “Short-term Liquidity”) are adequate to allow us to manage our day-to-day cash requirements and anticipated obligations as discussed further below. Our liquidity and capital resources are managed on a consolidated basis.

On a consolidated basis, our ability to finance our operations, including funding capital expenditures and acquisitions, meeting our indebtedness obligations, refinancing or repaying our indebtedness, meeting our collateral requirements and to pay dividends declared by our Board of Directors will depend on our ability to generate cash in the future. Our ability to generate cash is subject to a number of factors, some of which are beyond our control. These include commodity prices and ongoing efforts to manage operating costs and maintenance capital expenditures, as well as general economic, financial, competitive, legislative, regulatory and other factors. For additional discussion on recent factors impacting our liquidity and capital resources, please see “Recent Developments.”

On a consolidated basis, our main sources of liquidity and capital resources are internally generated cash flows from operations, borrowings under the $2.75 billion TRGP senior revolving credit facility (the “TRGP Revolver”), unsecured commercial paper note program (the “Commercial Paper Program”), the Partnership’s accounts receivable securitization facility (the “Securitization Facility”), and access to debt and equity capital markets. We supplement these sources of liquidity with joint venture arrangements and proceeds from asset sales. Our exposure to adverse credit conditions includes our credit facilities, cash investments, hedging abilities, customer performance risks and counterparty performance risks.

Short-term Liquidity

Our short-term liquidity on a consolidated basis as of March 31, 2024, was:

	Consolidated Total
	(In millions)
Cash on hand (1)	$	109.9
Total availability under the Securitization Facility		600.0
Total availability under the TRGP Revolver and Commercial Paper Program		2,750.0
		3,459.9
Less: Outstanding borrowings under the Securitization Facility		(500.0	)
Outstanding borrowings under the TRGP Revolver and Commercial Paper Program		(360.0	)
Outstanding letters of credit under the TRGP Revolver		(32.5	)
Total liquidity	$	2,567.4

(1)Includes cash held in our consolidated joint venture accounts.

Other potential capital resources associated with our existing arrangements include our right to request an additional $500.0 million in commitment increases under the TRGP Revolver, subject to the terms therein. The TRGP Revolver matures on February 17, 2027.

A portion of our capital resources are allocated to letters of credit to satisfy certain counterparty credit requirements. As of March 31, 2024, we had $32.5 million in letters of credit outstanding under the TRGP Revolver. The letters of credit also reflect certain counterparties’ views of our financial condition and ability to satisfy our performance obligations, as well as commodity prices and other factors.

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Working Capital

Working capital is the amount by which current assets exceed current liabilities. On a consolidated basis, at the end of any given month, accounts receivable and payable tied to commodity sales and purchases are relatively balanced, with receivables from customers being offset by plant settlements payable to producers. The factors that typically cause overall variability in our reported total working capital are: (i) our cash position; (ii) liquids inventory levels, which we closely manage, as well as liquids valuations; (iii) changes in payables and accruals related to major growth capital projects; (iv) changes in the fair value of the current portion of derivative contracts; (v) monthly swings in borrowings under the Securitization Facility; and (vi) major structural changes in our asset base or business operations, such as certain organic growth capital projects and acquisitions or divestitures.

Working capital as of March 31, 2024 decreased $275.2 million compared to December 31, 2023. The decrease was primarily due to lower NGL inventory, higher product purchases and fuel payables due to higher NGL prices and volumes, reclassification of liabilities from long-term to current as a result of a 2024 legal ruling associated with the Splitter Agreement, and lower net liabilities for hedging activities, partially offset by lower net borrowings on the Securitization Facility.

Based on our anticipated levels of operations and absent any disruptive events, we believe that our internally generated cash flow, borrowings available under the TRGP Revolver, Commercial Paper Program, Securitization Facility, and proceeds from debt and equity offerings, as well as joint ventures and/or asset sales, should provide sufficient resources to finance our operations, capital expenditures, long-term debt obligations, collateral requirements and quarterly cash dividends for at least the next twelve months.

Long-term Financing

Our long-term financing consists of potentially raising funds through long-term debt obligations, the issuance of common stock, preferred stock, or joint venture arrangements.

In the future, we or the Partnership may redeem, purchase or exchange certain of our and/or the Partnership’s outstanding debt through redemption calls, cash purchases and/or exchanges for other debt, in open market purchases, privately negotiated transactions or otherwise. Such calls, repurchases, exchanges or redemptions, if any, will depend on prevailing market conditions, our liquidity requirements, contractual restrictions and other factors. The amounts involved may be material.

To date, our debt balances and our subsidiaries’ debt balances have not adversely affected our operations, ability to grow or ability to repay or refinance indebtedness.

For information about our debt obligations, see Note 6 – Debt Obligations to our Consolidated Financial Statements. For information about our interest rate risk, see “Item 3. Quantitative and Qualitative Disclosures About Market Risk—Interest Rate Risk.”

Compliance with Debt Covenants

As of March 31, 2024, both we and the Partnership were in compliance with the covenants contained in our various debt agreements.

Cash Flow Analysis

Cash Flows from Operating Activities

Three Months Ended March 31,
2024		2023		2024 vs. 2023
(In millions)
$	876.4	$	1,169.8	$	(293.4	)

The primary drivers of cash flows from operating activities are: (i) the collection of cash from customers from the sale of NGLs and natural gas, as well as fees for processing, gathering, export, fractionation, terminaling, storage and transportation; (ii) the payment of amounts related to the purchase of NGLs, natural gas and crude oil; (iii) changes in payables and accruals related to major growth capital projects; and (iv) the payment of other expenses, primarily field operating costs, general and administrative expense and interest expense. In addition, we use derivative instruments to manage our exposure to commodity price risk. Changes in the prices of the commodities we hedge impact our derivative settlements as well as our margin deposit requirements on unsettled futures contracts.

The decrease in net cash provided by operations was primarily due to lower collections from customers and lower settlements for hedge transactions, offset by a decrease in payments for product purchases and fuel.

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Cash Flows from Investing Activities

Three Months Ended March 31,
2024			2023			2024 vs. 2023
(In millions)
$	(677.9	)	$	(480.8	)	$	(197.1	)

The increase in net cash used in investing activities was primarily due to higher outlays for property, plant and equipment in 2024 primarily related to construction activities in the Permian region and Mont Belvieu, Texas.

Cash Flows from Financing Activities

	Three Months Ended March 31,
	2024			2023
	(In millions)
Source of Financing Activities, net
Debt, including financing costs	$	99.2		$	613.9
Repurchase of noncontrolling interests		(1.3	)		(1,091.9	)
Dividends		(116.6	)		(85.3	)
Contributions from (distributions to) noncontrolling interests		(51.4	)		(47.1	)
Repurchase of shares		(160.2	)		(85.8	)
Net cash provided by (used in) financing activities	$	(230.3	)	$	(696.2	)

The decrease in net cash used in financing activities was due to lower repurchases of noncontrolling interests primarily due to the Grand Prix Transaction in 2023, partially offset by lower borrowings of debt, higher repurchases of common stock and higher dividends paid in 2024.

Summarized Combined Financial Information for Guarantee of Securities of Subsidiaries

Our subsidiaries that guarantee our obligations under the TRGP Revolver (the “Obligated Group”) also fully and unconditionally guarantee, jointly and severally, the payment of TRGP’s senior notes, subject to certain limited exceptions.

In lieu of providing separate financial statements for the Obligated Group, we have presented the following supplemental summarized Combined Balance Sheet and Statement of Operations information for the Obligated Group based on Rule 13-01 of the SEC’s Regulation S-X.

All significant intercompany items among the Obligated Group have been eliminated in the supplemental summarized combined financial information. The Obligated Group’s investment balances in our non-guarantor subsidiaries have been excluded from the supplemental summarized combined financial information. Significant intercompany balances and activity for the Obligated Group with other related parties, including our non-guarantor subsidiaries (referred to as “affiliates”), are presented separately in the following supplemental summarized combined financial information.

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Summarized Combined Balance Sheet and Statement of Operations information for the Obligated Group as of the end of the most recent period presented follows:

Summarized Combined Balance Sheet Information
	March 31, 2024		December 31, 2023
	(In millions)
ASSETS
Current assets	$	766.5	$	966.3
Current assets - affiliates		10.0		11.2
Long-term assets		15,528.5		15,267.6
Total assets	$	16,305.0	$	16,245.1
LIABILITIES AND OWNERS’ EQUITY
Current liabilities	$	2,256.7	$	2,107.9
Current liabilities - affiliates		34.8		26.2
Long-term liabilities		13,432.0		13,278.8
Targa Resources Corp. stockholders’ equity		581.5		832.2
Total liabilities and owners’ equity	$	16,305.0	$	16,245.1
Summarized Combined Statement of Operations Information
	Three Months Ended		Year Ended
	March 31, 2024		December 31, 2023
	(In millions)
Revenues	$	4,448.6	$	15,737.0
Operating income (loss)		499.4		2,134.2
Net income (loss)		192.2		1,100.1

Common Stock Dividends

The following table details the dividends on common stock declared and/or paid by us for the three months ended March 31, 2024:

Three Months Ended	Date Paid or To Be Paid	Total Common Dividends Declared		Amount of Common Dividends Paid or To Be Paid		Dividends on Share-Based Awards		Dividends Declared per Share of Common Stock
(In millions, except per share amounts)
March 31, 2024	May 15, 2024	$	168.1	$	166.3	$	1.8	$	0.75000
December 31, 2023	February 15, 2024		112.8		111.6		1.2		0.50000

The actual amount we declare as dividends in the future depends on our consolidated financial condition, results of operations, cash flow, the level of our capital expenditures, future business prospects, compliance with our debt covenants and any other matters that our Board of Directors deems relevant.

Capital Expenditures

The following table details cash outlays for capital projects for the three months ended March 31, 2024 and 2023:

	Three Months Ended March 31,
	2024			2023
	(In millions)
Capital expenditures:
Growth (1)	$	677.9		$	410.3
Maintenance (2)		51.8			44.0
Gross capital expenditures		729.7			454.3
Change in capital project payables and accruals, net		(59.9	)		21.4
Cash outlays for capital projects	$	669.8		$	475.7

(1)Growth capital expenditures, net of contributions from noncontrolling interests and including contributions to investments in unconsolidated affiliates, were $685.8 million and $415.4 million for the three months ended March 31, 2024 and 2023.

(2)Maintenance capital expenditures, net of contributions from noncontrolling interests, were $49.8 million and $41.8 million for the three months ended March 31, 2024 and 2023.

The increase in total growth capital expenditures was primarily due to system expansions in the Permian region in response to forecasted production growth and higher activity levels, and expansions in our downstream business. The increase in total maintenance capital expenditures was primarily due to our growing infrastructure footprint.

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With our announced natural gas processing additions currently under construction in the Permian region, coupled with the construction of our Daytona NGL Pipeline and Train 9, 10 and 11 fractionators in Mont Belvieu, we currently estimate that in 2024 we will invest between $2.3 billion to $2.5 billion in net growth capital expenditures for announced projects. Future growth capital expenditures may vary based on investment opportunities. We expect that 2024 maintenance capital expenditures, net of noncontrolling interests, will be approximately $225 million.

Off-Balance Sheet Arrangements

As of March 31, 2024, there were $87.1 million in surety bonds outstanding related to various performance obligations. These are in place to support various performance obligations as required by (i) statutes within the regulatory jurisdictions where we operate, and (ii) counterparty support. Obligations under these surety bonds are not normally called, as we typically comply with the underlying performance requirement.

Item 3. Quantitative and Qualitative Disclosures About Market Risk.

Our principal market risks are our exposure to changes in commodity prices, particularly to the prices of natural gas, NGLs and crude oil, changes in interest rates, as well as nonperformance by our risk management counterparties and customers.

Risk Management

We evaluate counterparty risks related to our commodity derivative contracts and trade credit. All of our commodity derivatives are with major financial institutions or major energy companies. Should any of these financial counterparties not perform, we may not realize the benefit of some of our hedges under lower commodity prices, which could have a material adverse effect on our results of operations. We sell our natural gas, NGLs and condensate to a variety of purchasers. Non-performance by a trade creditor could result in losses.

Crude oil, NGL and natural gas prices are volatile. In an effort to reduce the variability of our cash flows, we have entered into derivative instruments to hedge the commodity price associated with a portion of our expected natural gas, NGL and condensate equity volumes, future commodity purchases and sales, and transportation basis risk through 2027. Market conditions may also impact our ability to enter into future commodity derivative contracts.

Commodity Price Risk

A portion of our revenues are derived from percent-of-proceeds contracts under which we receive a portion of the proceeds from the sale of commodities as payment for services. The prices of natural gas, NGLs and crude oil are subject to fluctuations in response to changes in supply, demand, market uncertainty and a variety of additional factors beyond our control. We monitor these risks and enter into hedging transactions designed to mitigate the impact of commodity price fluctuations on our business. Cash flows from a derivative instrument designated as a hedge are classified in the same category as the cash flows from the item being hedged.

The primary purpose of our commodity risk management activities is to hedge some of the exposure to commodity price risk and reduce fluctuations in our operating cash flow due to fluctuations in commodity prices. In an effort to reduce the variability of our cash flows, as of March 31, 2024, we have hedged the commodity price associated with a portion of our expected (i) natural gas, NGL, and condensate equity volumes in our Gathering and Processing operations that result from our percent-of-proceeds processing arrangements, (ii) future commodity purchases and sales in our Logistics and Transportation segment and (iii) natural gas transportation basis risk in our Logistics and Transportation segment. We hedge a higher percentage of our expected equity volumes in the current year compared to future years, for which we hedge incrementally lower percentages of expected equity volumes. We also enter into commodity financial instruments to help manage other short-term commodity-related business risks of our ongoing operations and in conjunction with marketing opportunities available to us in the operations of our logistics and transportation assets. With swaps, we typically receive an agreed fixed price for a specified notional quantity of commodities and we pay the hedge counterparty a floating price for that same quantity based upon published index prices. Since we receive from our customers substantially the same floating index price from the sale of the underlying physical commodity, these transactions are designed to effectively lock-in the agreed fixed price in advance for the volumes hedged. In order to avoid having a greater volume hedged than our actual equity volumes, we typically limit our use of swaps to hedge the prices of less than our expected equity volumes. We utilize purchased puts (or floors) and calls (or caps) to hedge additional expected equity commodity volumes without creating volumetric risk. We may buy calls in connection with swap positions to create a price floor with upside. We intend to continue to manage our exposure to commodity prices in the future by entering into derivative transactions using swaps, collars, purchased puts (or floors), futures or other derivative instruments as market conditions permit.

37

When entering into new hedges, we intend to generally match the NGL product composition and the NGL and natural gas delivery points to those of our physical equity volumes. The NGL hedges cover specific NGL products based upon the expected equity NGL composition. We believe this strategy avoids uncorrelated risks resulting from employing hedges on crude oil or other petroleum products as “proxy” hedges of NGL prices. The fair values of our natural gas and NGL hedges are based on published index prices for delivery at various locations, which closely approximate the actual natural gas and NGL delivery points. A portion of our condensate sales are hedged using crude oil hedges that are based on the NYMEX futures contracts for West Texas Intermediate light, sweet crude.

A majority of these commodity price hedges are documented pursuant to a standard International Swaps and Derivatives Association (“ISDA”) form with customized credit and legal terms. The principal counterparties (or, if applicable, their guarantors) have investment grade credit ratings. While we have no current obligation to post cash, letters of credit or other additional collateral to secure these hedges so long as we maintain our current credit rating, we could be obligated to post collateral to secure the hedges in the event of an adverse change in our creditworthiness where a counterparty’s exposure to our credit increases over the term of the hedge as a result of higher commodity prices. A purchased put (or floor) transaction does not expose our counterparties to credit risk, as we have no obligation to make future payments beyond the premium paid to enter into the transaction; however, we are exposed to the risk of default by the counterparty, which is the risk that the counterparty will not honor its obligation under the put transaction.

We also enter into commodity price hedging transactions using futures contracts on futures exchanges. Exchange traded futures are subject to exchange margin requirements, so we may have to increase our cash deposit due to a rise in natural gas, NGL or crude oil prices. Unlike bilateral hedges, we are not subject to counterparty credit risks when using futures on futures exchanges.

These contracts may expose us to the risk of financial loss in certain circumstances. Generally, our hedging arrangements provide us protection on the hedged volumes if prices decline below the prices at which these hedges are set. If prices rise above the prices at which they have been hedged, we will receive less revenue on the hedged volumes than we would receive in the absence of hedges (other than with respect to purchased calls).

To analyze the risk associated with our derivative instruments, we utilize a sensitivity analysis. The sensitivity analysis measures the change in fair value of our derivative instruments based on a hypothetical 10% change in the underlying commodity prices, but does not reflect the impact that the same hypothetical price movement would have on the related hedged items. The financial statement impact on the fair value of a derivative instrument resulting from a change in commodity price would normally be offset by a corresponding gain or loss on the hedged item under hedge accounting. The fair values of our derivative instruments are also influenced by changes in market volatility for option contracts and the discount rates used to determine the present values.

The following table shows the effect of hypothetical price movements on the estimated fair value of our derivative instruments as of March 31, 2024:

	Fair Value			Result of 10% Price Decrease		Result of 10% Price Increase
	(In millions)
Natural gas	$	(7.4	)	$	24.0	$	(38.8	)
NGLs		(2.3	)		54.7		(59.3	)
Crude oil		(17.2	)		5.5		(39.8	)
Total	$	(26.9	)	$	84.2	$	(137.9	)

The table above contains all derivative instruments outstanding as of the stated date for the purpose of hedging commodity price risk, which we are exposed to due to our equity volumes and future commodity purchases and sales, as well as basis differentials related to our gas transportation arrangements.

Our operating revenues increased (decreased) by $(35.1) million and $223.2 million during the three months ended March 31, 2024 and 2023, respectively, as a result of transactions accounted for as derivatives. The estimated fair value of our risk management position has moved from a net asset position of $74.4 million at December 31, 2023 to a net liability position of $26.9 million at March 31, 2024. Forward commodity prices have increased relative to the fixed prices on our derivative contracts creating the net liability position.

38

Interest Rate Risk

We are exposed to the risk of changes in interest rates, primarily as a result of variable rate borrowings under the TRGP Revolver, the Commercial Paper Program, the Securitization Facility, and the Term Loan Facility. As of March 31, 2024, we do not have any interest rate hedges. However, we may enter into interest rate hedges in the future with the intent to mitigate the impact of changes in interest rates on cash flows. To the extent that interest rates increase, interest expense for the TRGP Revolver, the Commercial Paper Program, the Securitization Facility and the Term Loan Facility will also increase. As of March 31, 2024, we had $1.4 billion in outstanding variable rate borrowings. A hypothetical change of 100 basis points in the rate of our variable interest rate debt would impact our consolidated annual interest expense by $13.6 million based on our March 31, 2024 debt balances.

Counterparty Credit Risk

We are subject to risk of losses resulting from nonpayment or nonperformance by our counterparties. The credit exposure related to commodity derivative instruments is represented by the fair value of the asset position (i.e. the fair value of expected future receipts) at the reporting date. Our futures contracts have limited credit risk since they are cleared through an exchange and are margined daily. Should the creditworthiness of one or more of the counterparties decline, our ability to mitigate nonperformance risk is limited to a counterparty agreeing to either a voluntary termination and subsequent cash settlement or a novation of the derivative contract to a third party. In the event of a counterparty default, we may sustain a loss and our cash receipts could be negatively impacted. We have master netting provisions in the ISDA agreements with our derivative counterparties. These netting provisions allow us to net settle asset and liability positions with the same counterparties within the same Targa entity, and would reduce our maximum loss due to counterparty credit risk by $35.2 million as of March 31, 2024. The range of losses attributable to our individual counterparties as of March 31, 2024 would be between $0.1 million and $7.3 million, depending on the counterparty in default.

For more information about our hedging activities, see Note 10 – Derivative Instruments and Hedging Activities and Note 11 – Fair Value Measurements to our Consolidated Financial Statements.

Customer Credit Risk

We extend credit to customers and other parties in the normal course of business. We have established various procedures to manage our credit exposure, including performing initial and subsequent credit risk analyses, setting maximum credit limits and terms and requiring credit enhancements when necessary. We use credit enhancements including (but not limited to) letters of credit, prepayments, parental guarantees and rights of offset to limit credit risk to ensure that our established credit criteria are followed and financial loss is mitigated or minimized.

We have an active credit management process, which is focused on controlling loss exposure due to bankruptcies or other liquidity issues of counterparties. Our allowance for credit losses was $2.5 million as of both March 31, 2024 and December 31, 2023.

During the three months ended March 31, 2024 and 2023, no customer comprised 10% or greater of our consolidated revenues.

Item 4. Controls and Procedures.

Evaluation of Disclosure Controls and Procedures

Management, with the participation of our Chief Executive Officer and Chief Financial Officer, has evaluated the design and effectiveness of our disclosure controls and procedures, as such term is defined in Rules 13a-15(e) and 15d-15(e) under the Securities Exchange Act of 1934, as amended (the “Exchange Act”) as of the end of the period covered in this Quarterly Report. Based on such evaluation, our Chief Executive Officer and Chief Financial Officer have concluded that, as of March 31, 2024, the design and operation of our disclosure controls and procedures were effective to provide reasonable assurance that information required to be disclosed in our reports filed or submitted under the Exchange Act is (i) recorded, processed, summarized and reported within the time periods specified in the rules and forms of the SEC, and (ii) accumulated and communicated to management, including our Chief Executive Officer and Chief Financial Officer, as appropriate, to allow for timely decisions regarding required disclosure.

Changes in Internal Control Over Financial Reporting

There have been no changes in our internal control over financial reporting during the quarter ended March 31, 2024, that have materially affected, or are reasonably likely to materially affect, our internal control over financial reporting.

39

PART II – OTHER INFORMATION

Item 1. Legal Proceedings.

On December 26, 2018, Vitol Americas Corp. (“Vitol”) filed a lawsuit in the 80th District Court of Harris County (the “District Court”), Texas against Targa Channelview LLC, then a subsidiary of the Company (“Targa Channelview”), seeking recovery of $129.0 million in payments made to Targa Channelview, additional monetary damages, attorneys’ fees and costs. Vitol alleged that Targa Channelview breached an agreement, dated December 27, 2015, for crude oil and condensate between Targa Channelview and Noble Americas Corp. (the “Splitter Agreement”), which provided for Targa Channelview to construct a crude oil and condensate splitter (the “Splitter”) adjacent to a barge dock owned by Targa Channelview to provide services contemplated by the Splitter Agreement. In January 2018, Vitol acquired Noble Americas Corp. and on December 23, 2018, Vitol voluntarily elected to terminate the Splitter Agreement claiming that Targa Channelview failed to timely achieve start-up of the Splitter. Vitol’s lawsuit also alleged Targa Channelview made a series of misrepresentations about the capability of the barge dock that would service crude oil and condensate volumes to be processed by the Splitter and Splitter products. Vitol sought return of $129.0 million in payments made to Targa Channelview prior to the start-up of the Splitter, as well as additional damages. On the same date that Vitol filed its lawsuit, Targa Channelview filed a lawsuit against Vitol seeking a judicial determination that Vitol’s sole and exclusive remedy was Vitol’s voluntarily termination of the Splitter Agreement and, as a result, Vitol was not entitled to the return of any prior payments under the Splitter Agreement or other damages as alleged. Targa also sought recovery of its attorneys’ fees and costs in the lawsuit.

On October 15, 2020, the District Court awarded Vitol $129.0 million (plus interest) following a bench trial. In addition, the District Court awarded Vitol $10.5 million in damages for losses and demurrage on crude oil that Vitol purchased for start-up efforts. The Company appealed the award in the Fourteenth Court of Appeals in Houston, Texas. In October 2020, we sold Targa Channelview, but under the agreements governing the sale, we retained the liabilities associated with the Vitol proceedings. On September 13, 2022, the Fourteenth Court of Appeals upheld the trial court’s judgment in part with regard to the return of Vitol’s prior payments, but modified the judgment to delete Vitol’s ability to recover any damages related to losses or demurrage on crude oil. We filed a petition for review with the Supreme Court of Texas, which was denied on October 20, 2023. We then filed a petition for rehearing with the Supreme Court of Texas, which was denied on April 19, 2024. The cumulative amount of interest on the award through March 31, 2024 was $54.9 million.

Additional information required for this item is provided in Note 12 – Contingencies, under the heading “Legal Proceedings” included in the Notes to Consolidated Financial Statements included under Part I, Item 1 of this Quarterly Report, which is incorporated by reference into this item.

Item 1A. Risk Factors.

For an in-depth discussion of our risk factors, see “Part I—Item 1A. Risk Factors” of our Annual Report. All of these risks and uncertainties could adversely affect our business, financial condition and/or results of operations.

Item 2. Unregistered Sales of Equity Securities and Use of Proceeds.

Recent Sales of Unregistered Equity Securities.

None.

Repurchase of Equity by Targa Resources Corp, or Affiliated Purchasers.

Period	Total number of shares purchased (1)		Average price per share		Total number of shares purchased as part of publicly announced plans (2)		Maximum approximate dollar value of shares that may yet be purchased under the plan (in thousands) (2)
January 1, 2024 - January 31, 2024		527,679	$	83.01		117,880	$	760,083
February 1, 2024 - February 29, 2024		14,319	$	87.90		—	$	760,083
March 1, 2024 - March 31, 2024		1,083,182	$	106.31		1,068,564	$	646,384

(1)Includes 1,186,444 shares purchased under our 2023 Share Repurchase Program, as well as 438,736 shares that were withheld by us to satisfy tax withholding obligations of certain of our officers, directors and key employees that arose upon the lapse of restrictions on restricted stock.

(2)In May 2023, our Board of Directors approved the 2023 Share Repurchase Program for the repurchase of up to $1.0 billion of our outstanding common stock. We are not obligated to repurchase any specific dollar amount or number of shares under the 2023 Share Repurchase Program and may discontinue the program at any time.

Item 3. Defaults Upon Senior Securities.

Not applicable.

40

Item 4. Mine Safety Disclosures.

Not applicable.

Item 5. Other Information.

Rule 10b-5 Trading Plans.

On February 28, 2024, Robert M. Muraro, our Chief Commercial Officer, adopted a Rule 10b5-1 trading arrangement that is intended to satisfy the affirmative defense of Rule 10b5-1(c) for the sale of up to 47,500 shares of our common stock until February 3, 2025.

Item 6. Exhibits.

Number	Description
3.1	Amended and Restated Certificate of Incorporation of Targa Resources Corp. (incorporated by reference to Exhibit 3.1 to Targa Resources Corp.’s Current Report on Form 8-K filed December 16, 2010 (File No. 001-34991)).
3.2	Certificate of Amendment to the Amended and Restated Certificate of Incorporation of Targa Resources Corp. (incorporated by reference to Exhibit 3.1 to Targa Resources Corp.’s Current Report on Form 8-K filed May 26, 2021 (File No. 001-34991)).
3.3	Certificate of Designations of Series A Preferred Stock of Targa Resources Corp., filed with the Secretary of State of the State of Delaware on March 16, 2016 (incorporated by reference to Exhibit 3.1 to Targa Resources Corp.’s Current Report on Form 8-K/A filed March 17, 2016 (File No. 001-34991)).
3.4	Third Amended and Restated Bylaws of Targa Resources Corp. (incorporated by reference to Exhibit 3.1 to Targa Resources Corp.’s Current Report on Form 8-K filed December 12, 2023 (File No. 001-34991)).
4.1	Specimen Common Stock Certificate (incorporated by reference to Exhibit 4.1 to Targa Resources Corp.’s Registration Statement on Form S-1/A filed November 12, 2010 (File No. 333-169277)).
10.1	Form of Restricted Stock Unit Agreement, dated as of January 18, 2024 under Targa Resources Corp. 2010 Stock Incentive Plan (incorporated by reference to Exhibit 10.12 to Targa Resources Corp.’s Annual Report on Form 10-K filed February 15, 2024 (File No. 001-34991).
10.2	Form of Restricted Stock Unit Agreement under Targa Resources Corp. 2010 Stock Incentive Plan (incorporated by reference to Exhibit 10.13 to Targa Resources Corp.’s Annual Report on Form 10-K filed February 15, 2024 (File No. 001-34991).
22.1*	List of Subsidiary Guarantors.
31.1*	Certification Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.
31.2*	Certification Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.
32.1**	Certification of the Chief Executive Officer pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.
32.2**	Certification of the Chief Financial Officer pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.
101.INS*	Inline XBRL Instance Document – The instance document does not appear in the interactive data file because its XBRL tags are embedded within the Inline XBRL document
101.SCH*	Inline XBRL Taxonomy Extension Schema With Embedded Linkbase Documents
104*	The cover page from this Quarterly Report on Form 10-Q for the quarter ended March 31, 2024, formatted in Inline XBRL (included with Exhibit 101 attachments).

* Filed herewith

** Furnished herewith

+ Management contract or compensatory plan or arrangement

41

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized.

	Targa Resources Corp.
	(Registrant)
Date: May 2, 2024	By:	/s/ Jennifer R. Kneale
		Jennifer R. Kneale
		Chief Financial Officer
		(Principal Financial Officer)

42

EX-22.1

Exhibit 22.1

List of Subsidiary Guarantors

Name	State of Incorporation or Organization
Arkoma Newco LLC	Delaware
Delaware-Permian Pipeline LLC	Delaware
FCPP Pipeline, LLC	Delaware
Flag City Processing Partners, LLC	Delaware
Grand Prix Development LLC	Delaware
Grand Prix Pipeline LLC	Delaware
Lasso Acquiror LLC	Delaware
Midland-Permian Pipeline LLC	Delaware
Setting Sun Pipeline Corporation	Delaware
Slider WestOk Gathering, LLC	Delaware
Targa Capital LLC	Delaware
Targa Cayenne LLC	Delaware
Targa Chaney Dell LLC	Delaware
Targa Cogen LLC	Delaware
Targa Condensate Marketing LLC	Delaware
Targa Delaware LLC	Delaware
Targa Delaware QOF LLC	Delaware
Targa Delaware QOZB LLC	Delaware
Targa Downstream LLC	Delaware
Targa Energy GP LLC	Delaware
Targa Energy LP	Delaware
Targa Frio LaSalle GP LLC	Texas
Targa Frio LaSalle Pipeline LP	Texas
Targa Gas Marketing LLC	Delaware
Targa Gas Pipeline LLC	Delaware
Targa Gas Processing LLC	Delaware
Targa GP Inc.	Delaware
Targa Gulf Coast NGL Pipeline LLC	Delaware
Targa Intrastate Pipeline LLC	Delaware
Targa LA Holdings LLC	Delaware
Targa LA Operating LLC	Delaware
Targa Liquids Marketing and Trade LLC	Delaware
Targa Louisiana Intrastate LLC	Delaware
Targa LP Inc.	Delaware
Targa Midkiff LLC	Delaware
Targa Midland Crude LLC	Delaware
Targa Midland LLC	Delaware
Targa Midstream Services LLC	Delaware
Targa MLP Capital LLC	Delaware
Targa NGL Pipeline Company LLC	Delaware
Targa Northern Delaware LLC	Delaware
Targa Permian Condensate Pipeline LLC	Delaware
Targa Pipeline Mid-Continent Holdings LLC	Delaware
Targa Pipeline Mid-Continent LLC	Delaware
Targa Pipeline Mid-Continent WestOk LLC	Delaware
Targa Pipeline Mid-Continent WestTex LLC	Delaware
Targa Pipeline Operating Partnership LP	Delaware
Targa Pipeline Partners GP LLC	Delaware
Targa Pipeline Partners LP	Delaware
Targa Resources Finance Corporation	Delaware
Targa Resources GP LLC	Delaware
Targa Resources LLC	Delaware
Targa Resources Operating GP LLC	Delaware
Targa Resources Operating LLC	Delaware
Targa Resources Partners LP	Delaware

Targa Rich Gas Services GP LLC	Texas
Targa Rich Gas Services LP	Texas
Targa Rich Gas Utility GP LLC	Texas
Targa Rich Gas Utility LP	Texas
Targa Southern Delaware LLC	Delaware
Targa SouthOk NGL Pipeline LLC	Oklahoma
Targa SouthTex CCNG Gathering Ltd.	Texas
Targa SouthTex Energy GP LLC	Delaware
Targa SouthTex Energy LP LLC	Delaware
Targa SouthTex Energy Operating LLC	Delaware
Targa SouthTex Gathering Ltd.	Texas
Targa SouthTex Midstream Company LP	Texas
Targa SouthTex Midstream Marketing Company Ltd.	Texas
Targa SouthTex Midstream T/U GP LLC	Texas
Targa SouthTex Midstream Utility LP	Texas
Targa SouthTex Mustang Transmission Ltd.	Texas
Targa SouthTex NGL Pipeline Ltd.	Texas
Targa SouthTex Processing LLC	Delaware
Targa Train 6 LLC	Delaware
Targa Train 8 LLC	Delaware
Targa Train 9 LLC	Delaware
Targa Transport LLC	Delaware
TPL Arkoma Midstream LLC	Delaware
TPL Gas Treating LLC	Delaware
TPL SouthTex Gas Utility Company LP	Texas
TPL SouthTex Midstream Holding Company LP	Texas
TPL SouthTex Midstream LLC	Delaware
TPL SouthTex Pipeline Company LLC	Texas
TPL SouthTex Processing Company LP	Texas
TPL SouthTex Transmission Company LP	Texas
T2 Eagle Ford Gathering Company LLC	Delaware
T2 Gas Utility LLC	Texas
T2 LaSalle Gas Utility LLC	Texas
T2 LaSalle Gathering Company LLC	Delaware
Velma Gas Processing Company, LLC	Delaware
Velma Intrastate Gas Transmission Company, LLC	Delaware
Versado Gas Processors, L.L.C.	Delaware

EX-31.1

Exhibit 31.1

CERTIFICATION OF CHIEF EXECUTIVE OFFICER

PURSUANT TO RULE 13A-14(A) AND RULE 15D-14(A)

OF THE SECURITIES EXCHANGE ACT OF 1934, AS AMENDED

I, Matthew J. Meloy, certify that:

1. I have reviewed this Quarterly Report on Form 10-Q of Targa Resources Corp. (the “registrant”);

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4. The registrant’s other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

(a) Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

(b) Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

(c) Evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

(d) Disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter (the registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and

5. The registrant’s other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of the registrant’s board of directors (or persons performing the equivalent functions):

(a) All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and

(b) Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.

Date: May 2, 2024

By: /s/ Matthew J. Meloy

Name: Matthew J. Meloy

Title: Chief Executive Officer of Targa Resources Corp.

(Principal Executive Officer)

EX-31.2

Exhibit 31.2

CERTIFICATION OF CHIEF FINANCIAL OFFICER

PURSUANT TO RULE 13A-14(A) AND RULE 15D-14(A)

OF THE SECURITIES EXCHANGE ACT OF 1934, AS AMENDED

I, Jennifer R. Kneale, certify that:

1. I have reviewed this Quarterly Report on Form 10-Q of Targa Resources Corp. (the “registrant”);

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4. The registrant’s other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

(a) Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

(b) Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

(c) Evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

(d) Disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter (the registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and

5. The registrant’s other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of the registrant’s board of directors (or persons performing the equivalent functions):

(a) All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and

(b) Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.

Date: May 2, 2024

By: /s/ Jennifer R. Kneale

Name: Jennifer R. Kneale

Title: Chief Financial Officer of Targa Resources Corp.

(Principal Financial Officer)

EX-32.1

Exhibit 32.1

CERTIFICATION OF CHIEF EXECUTIVE OFFICER PURSUANT TO

18 U.S.C. SECTION 1350,

AS ADOPTED PURSUANT TO

SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

In connection with the Quarterly Report on Form 10-Q of Targa Resources Corp., for the three months ended March 31, 2024 as filed with the Securities and Exchange Commission on the date hereof (the “Report”), Matthew J. Meloy, as Chief Executive Officer of Targa Resources Corp., hereby certifies, pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that, to his knowledge:

(1) The Report fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934, as amended; and

(2) The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of Targa Resources Corp.

By: /s/ Matthew J. Meloy

Name: Matthew J. Meloy

Title: Chief Executive Officer of Targa Resources Corp.

Date: May 2, 2024

A signed original of this written statement required by Section 906, or other document authenticating, acknowledging, or otherwise adopting the signature that appears in typed form within the electronic version of this written statement required by Section 906, has been provided to Targa and will be retained by Targa and furnished to the Securities and Exchange Commission or its staff upon request.

EX-32.2

Exhibit 32.2

CERTIFICATION OF CHIEF FINANCIAL OFFICER PURSUANT TO

18 U.S.C. SECTION 1350,

AS ADOPTED PURSUANT TO

SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

In connection with the Quarterly Report on Form 10-Q of Targa Resources Corp., for the three months ended March 31, 2024 as filed with the Securities and Exchange Commission on the date hereof (the “Report”), Jennifer R. Kneale, as Chief Financial Officer of Targa Resources Corp., hereby certifies, pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that, to her knowledge:

(1) The Report fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934, as amended; and

(2) The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of Targa Resources Corp.

By: /s/ Jennifer R. Kneale

Name: Jennifer R. Kneale

Title: Chief Financial Officer of Targa Resources Corp.

Date: May 2, 2024

A signed original of this written statement required by Section 906, or other document authenticating, acknowledging, or otherwise adopting the signature that appears in typed form within the electronic version of this written statement required by Section 906, has been provided to Targa and will be retained by Targa and furnished to the Securities and Exchange Commission or its staff upon request.

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Document and Entity Information - shares	3 Months Ended
	Mar. 31, 2024	Apr. 26, 2024
Cover [Abstract]
Entity Registrant Name	TARGA RESOURCES CORP.
Trading Symbol	TRGP
Entity Central Index Key	0001389170
Current Fiscal Year End Date	--12-31
Entity Filer Category	Large Accelerated Filer
Entity Common Stock, Shares Outstanding		221,716,505
Document Fiscal Year Focus	2024
Document Fiscal Period Focus	Q1
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Mar. 31, 2024
Entity Small Business	false
Entity Shell Company	false
Entity Emerging Growth Company	false
Entity Current Reporting Status	Yes
Entity Tax Identification Number	20-3701075
Entity File Number	001-34991
Entity Address, Address Line One	811 Louisiana Street
Entity Address, Address Line Two	Suite 2100
Entity Address, City or Town	Houston
Entity Address, State or Province	TX
Entity Address, Postal Zip Code	77002
City Area Code	713
Local Phone Number	584-1000
Entity Interactive Data Current	Yes
Title of 12(b) Security	Common Stock
Security Exchange Name	NYSE
Entity Incorporation, State or Country Code	DE
Document Quarterly Report	true
Document Transition Report	false

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CONSOLIDATED BALANCE SHEETS (Unaudited) - USD ($) $ in Millions	Mar. 31, 2024	Dec. 31, 2023
Current assets:
Cash and cash equivalents	$ 109.9	$ 141.7
Trade receivables, net of allowances of $2.5 million and $2.5 million at March 31, 2024 and December 31, 2023	1,483.7	1,471.0
Inventories	224.5	371.5
Assets from risk management activities	72.6	111.9
Other current assets	82.3	98.5
Total current assets	1,973.0	2,194.6
Property, plant and equipment, net	16,282.8	15,806.4
Intangible assets, net	2,257.3	2,350.6
Long-term assets from risk management activities	17.1	33.3
Investments in unconsolidated affiliates	152.2	146.3
Other long-term assets	163.7	140.6
Total assets	20,846.1	20,671.8
Current liabilities:
Accounts payable	1,709.5	1,574.9
Accrued liabilities	295.9	281.7
Interest payable	186.2	229.6
Liabilities from risk management activities	76.8	54.0
Current debt obligations	546.1	620.7
Total current liabilities	2,814.5	2,760.9
Long-term debt	12,509.9	12,333.2
Long-term liabilities from risk management activities	39.8	16.8
Deferred income taxes, net	600.2	535.8
Other long-term liabilities	304.1	415.1
Contingencies (see Note 12)	0.0	0.0
Targa Resources Corp. stockholders' equity:
Common stock ($0.001 par value, 450,000,000 shares authorized as of March 31, 2024 and December 31, 2023)	0.2	0.2
Additional paid-in capital	3,073.4	3,058.8
Retained earnings (deficit)	654.1	492.0
Accumulated other comprehensive income (loss)	33.9	85.6
Treasury stock, at cost (19,109,620 shares as of March 31, 2024 and 17,484,440 shares as of December 31, 2023)	(1,057.7)	(896.9)
Total Targa Resources Corp. stockholders' equity	2,703.9	2,739.7
Noncontrolling interests	1,873.7	1,870.3
Total owners' equity	4,577.6	4,610.0
Total liabilities and owners' equity	$ 20,846.1	$ 20,671.8

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CONSOLIDATED BALANCE SHEETS (Unaudited) (Parenthetical) - USD ($) $ in Millions	Mar. 31, 2024	Dec. 31, 2023
Current assets:
Trade receivables, allowances	$ 2.5	$ 2.5
Targa Resources Corp. stockholders' equity:
Common stock, par value (in dollars per share)	$ 0.001	$ 0.001
Common stock, shares authorized (in shares)	450,000,000	450,000,000
Common stock, shares issued (in shares)	241,259,940	240,095,699
Common stock, shares outstanding (in shares)	222,150,320	222,611,259
Treasury stock, shares (in shares)	19,109,620	17,484,440

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CONSOLIDATED STATEMENTS OF OPERATIONS (Unaudited) - USD ($) shares in Millions, $ in Millions		3 Months Ended
		Mar. 31, 2024	Mar. 31, 2023
Revenues:
Total revenues		$ 4,562.4	$ 4,520.5
Costs and expenses:
Product purchases and fuel		3,218.0	3,019.0
Operating expenses		278.0	258.2
Depreciation and amortization expense		340.5	324.8
General and administrative expense		86.5	82.4
Other operating (income) expense			(0.6)
Income (loss) from operations		639.4	836.7
Other income (expense):
Interest expense, net		(228.6)	(168.0)
Equity earnings (loss)		2.8	(0.2)
Other, net		1.7	(3.0)
Income (loss) before income taxes		415.3	665.5
Income tax (expense) benefit		(82.7)	(110.3)
Net income (loss)		332.6	555.2
Less: Net income (loss) attributable to noncontrolling interests		57.4	58.2
Net income (loss) attributable to Targa Resources Corp.		275.2	497.0
Premium on repurchase of noncontrolling interests, net of tax	[1]		490.7
Net income (loss) attributable to common shareholders		$ 275.2	$ 6.3
Net income (loss) per common share - basic		$ 1.23	$ 0.03
Net income (loss) per common share - diluted		$ 1.22	$ 0.03
Weighted average shares outstanding - basic		222.8	226.4
Weighted average shares outstanding - diluted		223.7	229.3
Sales of Commodities [Member]
Revenues:
Total revenues		$ 3,953.0	$ 4,025.0
Fees from Midstream Services [Member]
Revenues:
Total revenues		$ 609.4	$ 495.5

[1] Represents premium paid on the Grand Prix Transaction. See Note 4 – Acquisitions.

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CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) (Unaudited) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Net income (loss)	$ 332.6	$ 555.2
Commodity hedging contracts:
Other comprehensive income (loss), pre-tax	(67.1)	38.7
Other comprehensive income (loss), related income tax	15.4	(8.6)
Other comprehensive income (loss), after tax	(51.7)	30.1
Comprehensive income (loss)	280.9	585.3
Less: Comprehensive income (loss) attributable to noncontrolling interests	57.4	58.2
Comprehensive income (loss) attributable to Targa Resources Corp.	223.5	527.1
Commodity Contracts [Member]
Commodity hedging contracts:
Change in fair value, pre-tax	(70.3)	83.9
Change in fair value, related income tax	16.1	(18.6)
Change in fair value, after tax	(54.2)	65.3
Settlements reclassified to revenues, pre-tax	3.2	(45.2)
Settlements reclassified to revenues, related income tax	(0.7)	10.0
Settlements reclassified to revenues, after tax	$ 2.5	$ (35.2)

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CONSOLIDATED STATEMENTS OF CHANGES IN OWNERS' EQUITY (Unaudited) - USD ($) $ in Millions	Total	Common Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings (Accumulated Deficit) [Member]	Accumulated Other Comprehensive Income (Loss) [Member]	Treasury Stock [Member]	Noncontrolling Interests [Member]
Balance at Dec. 31, 2022	$ 4,982.2	$ 0.2	$ 3,702.3	$ (626.8)	$ 54.7	$ (464.7)	$ 2,316.5
Balance (in shares) at Dec. 31, 2022		226,042,000				11,897,000
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Compensation on equity grants	15.0		15.0
Dividend equivalent rights	(1.3)		(1.3)
Shares issued under compensation program (in shares)		1,267,000
Shares tendered for tax withholding obligations	(33.8)					$ (33.8)
Shares tendered for tax withholding obligations (in shares)		(449,000)				449,000
Repurchases of common stock	$ (52.0)					$ (52.0)
Repurchases of common stock (in shares)	(724,140)	(724,000)				724,000
Series A Preferred Stock dividends
Dividends in excess of retained earnings			(79.3)	79.3
Common stock dividends
Common stock dividends	$ (79.3)			(79.3)
Distributions to noncontrolling interests	(56.1)						(56.1)
Contributions from noncontrolling interests	0.2						0.2
Repurchase of noncontrolling interests, net of tax	(948.0)		(490.7)				(457.3)
Other comprehensive income (loss)	30.1				30.1
Net income (loss)	555.2			497.0			58.2
Balance at Mar. 31, 2023	4,412.2	$ 0.2	3,146.0	(129.8)	84.8	$ (550.5)	1,861.5
Balance (in shares) at Mar. 31, 2023		226,136,000				13,070,000
Balance at Dec. 31, 2023	4,610.0	$ 0.2	3,058.8	492.0	85.6	$ (896.9)	1,870.3
Balance (in shares) at Dec. 31, 2023		222,611,000				17,484,000
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Compensation on equity grants	14.6		14.6
Dividend equivalent rights	(0.7)			(0.7)
Shares issued under compensation program (in shares)		1,165,000
Shares tendered for tax withholding obligations	(36.5)					$ (36.5)
Shares tendered for tax withholding obligations (in shares)		(440,000)				440,000
Repurchases of common stock	$ (123.7)					$ (123.7)
Repurchases of common stock (in shares)	(1,186,444)	(1,186,000)				1,186,000
Excise tax on repurchases of common stock	$ (0.6)					$ (0.6)
Common stock dividends
Common stock dividends	(112.4)			(112.4)
Distributions to noncontrolling interests	(55.8)						(55.8)
Contributions from noncontrolling interests	1.8						1.8
Other comprehensive income (loss)	(51.7)				(51.7)
Net income (loss)	332.6			275.2			57.4
Balance at Mar. 31, 2024	$ 4,577.6	$ 0.2	$ 3,073.4	$ 654.1	$ 33.9	$ (1,057.7)	$ 1,873.7
Balance (in shares) at Mar. 31, 2024		222,150,000				19,110,000

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CONSOLIDATED STATEMENTS OF CHANGES IN OWNERS' EQUITY (Unaudited) (Parenthetical) - $ / shares	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Statement of Stockholders' Equity [Abstract]
Common stock dividends, per share	$ 0.5	$ 0.35

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CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Cash flows from operating activities
Net income (loss)	$ 332.6	$ 555.2
Adjustments to reconcile net income (loss) to net cash provided by operating activities:
Amortization in interest expense	3.7	3.2
Compensation on equity grants	14.6	15.0
Depreciation and amortization expense	340.5	324.8
(Gain) loss on sale or disposition of assets	(1.1)	(1.5)
Write-downs of assets	1.0	0.9
Accretion of asset retirement obligations	1.6	1.6
Deferred income tax expense (benefit)	79.8	106.0
Equity (earnings) loss of unconsolidated affiliates	(2.8)	0.2
Distributions of earnings received from unconsolidated affiliates	5.6	1.4
Risk management activities	22.0	(175.7)
Changes in operating assets and liabilities, net of acquisitions:
Receivables and other assets	39.8	440.8
Inventories	147.0	237.5
Accounts payable, accrued liabilities and other liabilities	(64.5)	(292.7)
Interest payable	(43.4)	(46.9)
Net cash provided by operating activities	876.4	1,169.8
Cash flows from investing activities
Outlays for property, plant and equipment	(669.8)	(475.7)
Proceeds from sale of assets	0.9	0.2
Investments in unconsolidated affiliates	(9.4)	(6.2)
Return of capital from unconsolidated affiliates	0.7	1.2
Other, net	(0.3)	(0.3)
Net cash provided by (used in) investing activities	(677.9)	(480.8)
Debt obligations:
Repayments of credit facilities	0.0	(290.0)
Proceeds from borrowings of commercial paper notes	14,025.0	14,526.8
Repayments of commercial paper notes	(13,840.0)	(15,230.5)
Proceeds from borrowings under accounts receivable securitization facility	25.0	0.0
Repayments of accounts receivable securitization facility	(100.0)	(96.0)
Proceeds from issuance of senior notes	0.0	1,717.1
Principal payments of finance leases	(10.8)	(9.4)
Costs incurred in connection with financing arrangements	0.0	(4.1)
Repurchase of shares	(160.2)	(85.8)
Contributions from noncontrolling interests	1.8	0.2
Distributions to noncontrolling interests	(53.2)	(47.3)
Repurchase of noncontrolling interests	(1.3)	(1,091.9)
Dividends paid to common and Series A Preferred shareholders	(116.6)	(85.3)
Net cash provided by (used in) financing activities	(230.3)	(696.2)
Net change in cash and cash equivalents	(31.8)	(7.2)
Cash and cash equivalents, beginning of period	141.7	219.0
Cash and cash equivalents, end of period	$ 109.9	$ 211.8

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Pay vs Performance Disclosure - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Pay vs Performance Disclosure
Net Income (Loss)	$ 275.2	$ 497.0

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Insider Trading Arrangements

Feb. 28, 2024

shares

Trading Arrangements, by Individual

Material Terms of Trading Arrangement

On February 28, 2024, Robert M. Muraro, our Chief Commercial Officer, adopted a Rule 10b5-1 trading arrangement that is intended to satisfy the affirmative defense of Rule 10b5-1(c) for the sale of up to 47,500 shares of our common stock until February 3, 2025.

Robert M. Muraro [Member]

Trading Arrangements, by Individual

Name

Robert M. Muraro

Title

Chief Commercial Officer

Rule 10b5-1 Arrangement Adopted

true

Adoption Date

February 28, 2024

Termination Date

February 3, 2025

Aggregate Available

47,500

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Organization and Operations

3 Months Ended

Mar. 31, 2024

Organization [Abstract]

Organization and Operations

Note 1 — Organization and Operations

Our Organization

Targa Resources Corp. (NYSE: TRGP) is a publicly traded Delaware corporation formed in October 2005. Targa is a leading provider of midstream services and is one of the largest independent infrastructure companies in North America. We own, operate, acquire, and develop a diversified portfolio of complementary domestic midstream infrastructure assets.

In this Quarterly Report, unless the context requires otherwise, references to “we,” “us,” “our,” “the Company,” “Targa” or “TRGP” are intended to mean our consolidated business and operations. TRGP controls the general partner of and owns all of the outstanding common units representing limited partner interests in Targa Resources Partners LP, referred to herein as the “Partnership”. Targa consolidates the Partnership and its subsidiaries under GAAP, and the accompanying consolidated financial statements have been prepared under the rules and regulations of the SEC. Targa’s consolidated financial statements include differences from the consolidated financial statements of the Partnership. The most noteworthy differences are:

•the inclusion of the TRGP senior revolving credit facility and term loan facility;

•the inclusion of the TRGP senior notes;

•the inclusion of the TRGP commercial paper notes; and

•the impacts of TRGP’s treatment as a corporation for U.S. federal income tax purposes.

Our Operations

The Company is primarily engaged in the business of:

•gathering, compressing, treating, processing, transporting, and purchasing and selling natural gas;

•transporting, storing, fractionating, treating, and purchasing and selling NGLs and NGL products, including services to LPG exporters; and

•gathering, storing, terminaling, and purchasing and selling crude oil.

See Note 16 – Segment Information for certain financial information regarding our business segments.

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Basis of Presentation

3 Months Ended

Mar. 31, 2024

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Basis of Presentation

Note 2 — Basis of Presentation

The accompanying unaudited consolidated financial statements have been prepared in accordance with the instructions to Form 10-Q and do not include all information and disclosures required by GAAP. Therefore, this information should be read in conjunction with our consolidated financial statements and notes contained in our Annual Report. The information furnished herein reflects all adjustments that are, in the opinion of management, of a normal recurring nature and considered necessary for a fair statement of the results of the interim periods reported. All significant intercompany balances and transactions have been eliminated in consolidation. Certain amounts in prior periods have been reclassified to conform to the current year presentation. Operating results for the three months ended March 31, 2024 are not necessarily indicative of the results that may be expected for the year ending December 31, 2024.

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Significant Accounting Policies

3 Months Ended

Mar. 31, 2024

Accounting Policies [Abstract]

Significant Accounting Policies

Note 3 — Significant Accounting Policies

The accounting policies that we follow are set forth in Note 3 – Significant Accounting Policies of the Notes to Consolidated Financial Statements in our Annual Report. Other than the updates noted below, there were no significant updates or revisions to our accounting policies during the three months ended March 31, 2024.

Recently issued accounting pronouncements not yet adopted

Improvements to Reportable Segment Disclosures

In November 2023, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”) 2023-07, Segment Reporting (Topic 280): Improvements to Reportable Segment Disclosures. The amendments in this update require, among other items, that public entities disclose, on an annual and interim basis, significant segment expenses that are regularly provided to the chief operating decision maker (“CODM”) and included within each reported measure of segment profit or loss. Additionally, the amendments require annual disclosure of the title and position of the CODM and how that individual uses the reported measure(s) of segment profit or loss in assessing segment performance and how to allocate resources.

These amendments are effective for fiscal years beginning after December 15, 2023, and for interim periods within fiscal years beginning after December 15, 2024, with early adoption permitted. The disclosures required in the amendments apply retrospectively to all prior periods presented in the financial statements. We are evaluating the effect of the amendments on our consolidated financial statements and expect to disclose the required information for fiscal years beginning in the Annual Report on Form 10-K for the year ended December 31, 2024 and for interim periods beginning in the Quarterly Report on Form 10-Q for the quarter ended March 31, 2025.

Improvements to Income Tax Disclosures

In December 2023, the FASB issued ASU 2023-09, Income Taxes (Topic 740): Improvements to Income Tax Disclosures. The amendments in this update require, among other items, that public entities disclose, on an annual and interim basis, (i) specific categories of income taxes in the rate reconciliation, and (ii) a disaggregation of income taxes paid by federal, state, and foreign taxes.

These amendments are effective for fiscal years beginning after December 15, 2024, with early adoption permitted. The amendments are required to be applied prospectively with retrospective application permitted. We are evaluating the effect of the amendments on our consolidated financial statements and expect to disclose the required information beginning in the Annual Report on Form 10-K for the year ended December 31, 2025.

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Acquisitions

3 Months Ended

Mar. 31, 2024

Business Combinations [Abstract]

Acquisitions

Note 4 — Acquisitions

In January 2023, we completed the acquisition of Blackstone Energy Partners’ 25% interest in the Grand Prix Joint Venture (the “Grand Prix Transaction”) for aggregate consideration of $1.05 billion in cash and a final closing adjustment of $41.9 million. Following the closing of the Grand Prix Transaction, we own 100% of the interest in Grand Prix. The change in our ownership interests was accounted for as an equity transaction representing the acquisition of noncontrolling interests. The amount of the redemption price in excess of the carrying amount, net of tax, was $490.7 million, which was accounted for as a premium on repurchase of noncontrolling interests, and resulted in a reduction to Net income (loss) attributable to common shareholders.

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Property, Plant and Equipment and Intangible Assets

3 Months Ended

Mar. 31, 2024

Property Plant And Equipment And Intangible Assets [Abstract]

Property, Plant and Equipment and Intangible Assets

Note 5 — Property, Plant and Equipment and Intangible Assets

	March 31, 2024			December 31, 2023			Estimated Useful Lives (In Years)
Gathering systems	$	10,961.3		$	10,858.3		5 to 20
Processing and fractionation facilities		8,346.6			8,285.5		5 to 25
Terminaling and storage facilities		1,408.3			1,403.9		5 to 25
Transportation assets		3,366.0			3,294.0		10 to 50
Other property, plant and equipment		440.4			430.5		3 to 50
Land		184.7			185.0		—
Construction in progress		1,928.5			1,456.1		—
Finance lease right-of-use assets		348.1			351.9		5 to 14
Property, plant and equipment		26,983.9			26,265.2
Accumulated depreciation, amortization and impairment		(10,701.1	)		(10,458.8	)
Property, plant and equipment, net	$	16,282.8		$	15,806.4
Intangible assets		4,378.0			4,378.0		10 to 20
Accumulated amortization and impairment		(2,120.7	)		(2,027.4	)
Intangible assets, net	$	2,257.3		$	2,350.6

During the three months ended March 31, 2024 and 2023, depreciation expense was $247.2 million and $228.8 million, respectively.

Intangible Assets

Intangible assets consist of customer contracts and customer relationships acquired in prior business combinations. The fair value of these acquired intangible assets were determined at the date of acquisition based on the present values of estimated future cash flows. Amortization expense attributable to these assets is recorded over the periods in which we benefit from services provided to customers.

During the three months ended March 31, 2024 and 2023, amortization expense was $93.3 million and $96.0 million, respectively.

The estimated annual amortization expense for intangible assets is approximately $373.2 million, $326.0 million, $279.8 million, $252.2 million and $234.0 million for each of the years 2024 through 2028, respectively.

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Debt Obligations

3 Months Ended

Mar. 31, 2024

Debt Disclosure [Abstract]

Debt Obligations

Note 6 — Debt Obligations

	March 31, 2024			December 31, 2023
Current:
Partnership accounts receivable securitization facility, due August 2024 (1)	$	500.0		$	575.0
Finance lease liabilities		46.1			45.7
Current debt obligations		546.1			620.7
Long-term:
Term loan facility, variable rate, due July 2025		500.0			500.0
TRGP senior revolving credit facility, variable rate, due February 2027 (2)		360.0			175.0
Senior unsecured notes issued by TRGP:
5.200% fixed rate, due July 2027		750.0			750.0
6.150% fixed rate, due March 2029		1,000.0			1,000.0
4.200% fixed rate, due February 2033		750.0			750.0
6.125% fixed rate, due March 2033		900.0			900.0
6.500% fixed rate, due March 2034		1,000.0			1,000.0
4.950% fixed rate, due April 2052		750.0			750.0
6.250% fixed rate, due July 2052		500.0			500.0
6.500% fixed rate, due February 2053		850.0			850.0
Unamortized discount		(29.7	)		(29.5	)
Senior unsecured notes issued by the Partnership: (3)
6.500% fixed rate, due July 2027		705.2			705.2
5.000% fixed rate, due January 2028		700.3			700.3
6.875% fixed rate, due January 2029		679.3			679.3
5.500% fixed rate, due March 2030		949.6			949.6
4.875% fixed rate, due February 2031		1,000.0			1,000.0
4.000% fixed rate, due January 2032		1,000.0			1,000.0
		12,364.7			12,179.9
Debt issuance costs, net of amortization		(87.8	)		(90.8	)
Finance lease liabilities		233.0			244.1
Long-term debt		12,509.9			12,333.2
Total debt obligations	$	13,056.0		$	12,953.9
Irrevocable standby letters of credit: (2)
Letters of credit outstanding under the TRGP senior revolving credit facility	$	32.5		$	22.3

(1)As of March 31, 2024, the Partnership had $500.0 million of qualifying receivables under its $600.0 million accounts receivable securitization facility (the “Securitization Facility”), resulting in $100.0 million of availability.

(2)We maintain an unsecured commercial paper note program (the “Commercial Paper Program”), the borrowings of which are supported through maintaining a minimum available borrowing capacity under our $2.75 billion TRGP senior revolving credit facility (the “TRGP Revolver”) equal to the aggregate amount outstanding under the Commercial Paper Program. As of March 31, 2024, the TRGP Revolver had no borrowings outstanding and the Commercial Paper Program had $360.0 million borrowings outstanding, resulting in approximately $2.4 billion of available liquidity, after accounting for outstanding letters of credit.

(3)We guarantee all of the Partnership’s outstanding senior unsecured notes.

The following table shows the range of interest rates and weighted average interest rate incurred on our variable-rate debt obligations during the three months ended March 31, 2024:

	Range of Interest Rates Incurred	Weighted Average Interest Rate Incurred
TRGP Revolver and Commercial Paper Program	5.9% - 6.2%	6.0%
Securitization Facility	6.3% - 6.4%	6.3%
Term Loan Facility	6.7% - 6.8%	6.8%

Compliance with Debt Covenants

As of March 31, 2024, we were in compliance with the covenants contained in our various debt agreements.

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Other Long-term Liabilities

3 Months Ended

Mar. 31, 2024

Other Liabilities, Noncurrent [Abstract]

Other Long-term Liabilities

Note 7 — Other Long-term Liabilities

Other long-term liabilities are comprised of the following:

	March 31, 2024		December 31, 2023
Deferred revenue	$	119.1	$	248.8
Asset retirement obligations		104.6		103.0
Operating lease liabilities		76.6		56.5
Other liabilities		3.8		6.8
Total other long-term liabilities	$	304.1	$	415.1

Deferred Revenue

We have certain long-term contractual arrangements for which we have received consideration that we are not yet able to recognize as revenue. The resulting deferred revenue will be recognized once all conditions for revenue recognition have been met.

Deferred revenue as of March 31, 2024 and December 31, 2023, was $119.1 million and $248.8 million, respectively. Deferred revenue as of December 31, 2023 included $129.0 million of payments received from Vitol Americas Corp. (“Vitol”) (formerly known as Noble Americas Corp.), a subsidiary of Vitol US Holding Co., in 2016, 2017, and 2018 as part of an agreement (the “Splitter Agreement”) related to the construction and operation of a crude oil and condensate splitter. In December 2018, Vitol elected to terminate the Splitter Agreement. As a result of a legal ruling in April 2024, the $129.0 million payments from Vitol were reclassified to Accrued liabilities on our Consolidated Balance Sheets as of March 31, 2024. See Note 12 – Contingencies for further details.

Deferred revenue includes nonmonetary consideration received in a 2015 amendment to a gas gathering and processing agreement and consideration received for other construction activities of facilities connected to our systems. Deferred revenue also includes contributions in aid of construction received from customers for which revenue is recognized over the expected contract term.

The following table shows the components of deferred revenue:

	March 31, 2024		December 31, 2023
Contributions in aid of construction	$	86.9	$	86.4
Gas contract amendment		29.2		29.8
Splitter agreement		—		129.0
Other		3.0		3.6
Total deferred revenue	$	119.1	$	248.8

The following table shows the changes in deferred revenue:

Balance at December 31, 2023	$	248.8
Additions		3.6
Reclassification to accrued liabilities		(129.0	)
Revenue recognized		(4.3	)
Balance at March 31, 2024	$	119.1

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Common Stock and Related Matters

3 Months Ended

Mar. 31, 2024

Class of Stock Disclosures [Abstract]

Common Stock and Related Matters

Note 8 — Common Stock and Related Matters

Common Share Repurchase Program

In October 2020, our Board of Directors approved a share repurchase program (the “2020 Share Repurchase Program”) for the repurchase of up to $500.0 million of our outstanding common stock. During the second quarter of 2023, we exhausted the 2020 Share Repurchase Program.

In May 2023, our Board of Directors approved a share repurchase program (the “2023 Share Repurchase Program”) for the repurchase of up to $1.0 billion of our outstanding common stock. For the three months ended March 31, 2024, we repurchased 1,186,444 shares of our common stock at a weighted average per share price of $104.26 for a total net cost of $123.7 million. For the three months ended March 31, 2023, we repurchased 724,140 shares of our common stock at a weighted average per share price of $71.82 for a total net cost of $52.0 million.

As of March 31, 2024, there was $646.4 million remaining under the 2023 Share Repurchase Program. We are not obligated to repurchase any specific dollar amount or number of shares under the 2023 Share Repurchase Program and may discontinue the program at any time.

Common Stock Dividends

In April 2024, we declared an increase to our common dividend to $0.75 per common share, or $3.00 per common share annualized effective for the first quarter of 2024.

The following table details the dividends declared and/or paid by us to common shareholders for the three months ended March 31, 2024:

Three Months Ended	Date Paid or To Be Paid	Total Common Dividends Declared		Amount of Common Dividends Paid or To Be Paid		Dividends on Share-Based Awards		Dividends Declared per Share of Common Stock
(In millions, except per share amounts)
March 31, 2024	May 15, 2024	$	168.1	$	166.3	$	1.8	$	0.75000
December 31, 2023	February 15, 2024		112.8		111.6		1.2		0.50000

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Earnings per Common Share

3 Months Ended

Mar. 31, 2024

Earnings Per Share [Abstract]

Earnings per Common Share

Note 9 — Earnings per Common Share

In March 2023, the Compensation Committee amended the Restricted Stock Units Grant Agreements that govern the Restricted Stock Unit awards (“RSUs”) that vest no later than three years following the RSUs’ grant date. The amendment resulted in quarterly cash dividend payments to RSU holders beginning with the common stock dividend paid in May 2023. As the amended RSUs and certain four-year retention awards participate in nonforfeitable dividends with the common equity owners of the Company, they are considered participating securities.

We calculate earnings per share using the two-class method. Earnings are allocated to common stock and participating securities based on the amount of dividends paid in the current period plus an allocation of the undistributed earnings to the extent that each security participates in earnings.

The following table sets forth a reconciliation of net income and weighted average shares outstanding used in computing basic and diluted net income per common share:

	Three Months Ended March 31,
	2024		2023
	(In millions, except per share amounts)
Net income (loss) attributable to Targa Resources Corp.	$	275.2	$	497.0
Less: Premium on repurchase of noncontrolling interests, net of tax (1)		—		490.7
Net income (loss) attributable to common shareholders		275.2		6.3
Less: Participating share-based earnings (2)		2.2		—
Net income (loss) allocated to common shareholders for basic earnings per share	$	273.0	$	6.3
Weighted average shares outstanding - basic		222.8		226.4
Dilutive effect of unvested stock awards		0.9		2.9
Weighted average shares outstanding - diluted		223.7		229.3
Net income (loss) available per common share - basic	$	1.23	$	0.03
Net income (loss) available per common share - diluted	$	1.22	$	0.03

(1)Represents premium paid on the Grand Prix Transaction. See Note 4 – Acquisitions.

(2)Represents the distributed and undistributed earnings of the Company attributable to the participating securities. The dilutive effect of the reallocation of participating securities to diluted net income attributable to common shareholders was immaterial.

The following potential common stock equivalents are excluded from the determination of diluted earnings per share because the inclusion of such shares would have been anti-dilutive (in millions on a weighted-average basis):

	Three Months Ended March 31,
	2024		2023
Unvested restricted stock awards		1.1		0.1

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Derivative Instruments and Hedging Activities

3 Months Ended

Mar. 31, 2024

Derivative Instruments and Hedging Activities Disclosure [Abstract]

Derivative Instruments and Hedging Activities

Note 10 — Derivative Instruments and Hedging Activities

The primary purpose of our commodity risk management activities is to manage our exposure to commodity price risk and reduce volatility in our operating cash flow due to fluctuations in commodity prices. We have entered into derivative instruments to hedge the commodity price risks associated with a portion of our expected (i) natural gas, NGL, and condensate equity volumes in our Gathering and Processing operations that result from percent-of-proceeds processing arrangements, (ii) future commodity purchases and sales in our Logistics and Transportation segment and (iii) natural gas transportation basis risk in our Logistics and Transportation segment. The hedge positions associated with (i) and (ii) above will move favorably in periods of falling commodity prices and unfavorably in periods of rising commodity prices and are primarily designated as cash flow hedges for accounting purposes.

The hedges generally match the NGL product composition and the NGL delivery points of our physical equity volumes. Our natural gas hedges are a mixture of specific gas delivery points and Henry Hub. The NGL hedges may be transacted as specific NGL hedges or as baskets of ethane, propane, normal butane, isobutane and natural gasoline based upon our expected equity NGL composition. We believe this approach avoids uncorrelated risks resulting from employing hedges on crude oil or other petroleum products as “proxy” hedges of NGL prices. Our natural gas and NGL hedges are settled using published index prices for delivery at various locations.

We hedge a portion of our condensate equity volumes using crude oil hedges that are based on the NYMEX futures contracts for West Texas Intermediate light, sweet crude, which approximates the prices received for condensate. This exposes us to a market differential risk if the NYMEX futures do not move in exact parity with the sales price of our underlying condensate equity volumes.

We also enter into derivative instruments to help manage other short-term commodity-related business risks and take advantage of market opportunities. We have not designated these derivatives as hedges and record changes in fair value and cash settlements to revenues as current income.

At March 31, 2024, the notional volumes of our commodity derivative contracts were:

Commodity	Instrument	Unit	2024		2025		2026		2027
Natural Gas	Swaps	MMBtu/d		100,136		63,156		29,623		—
Natural Gas	Basis Swaps	MMBtu/d		437,909		257,082		152,500		65,000
NGL	Swaps	Bbl/d		29,563		21,354		8,768		—
NGL	Futures	Bbl/d		8,585		4,682		—		—
Condensate	Swaps	Bbl/d		4,442		3,447		1,881		—

Our derivative contracts are subject to netting arrangements that permit our contracting subsidiaries to net cash settle offsetting asset and liability positions with the same counterparty within the same Targa entity. The master netting provisions reduced our maximum loss due to counterparty credit risk by $35.2 million as of March 31, 2024. The range of losses attributable to our individual counterparties would be between $0.1 million and $7.3 million, depending on the counterparty in default. We record derivative assets and liabilities on our Consolidated Balance Sheets on a gross basis, without considering the effect of master netting arrangements.

The following schedules reflect the fair value of our derivative instruments and their location on our Consolidated Balance Sheets as well as pro forma reporting assuming that we reported derivatives subject to master netting agreements on a net basis:

		Fair Value as of March 31, 2024					Fair Value as of December 31, 2023
	Balance Sheet	Derivative		Derivative			Derivative		Derivative
	Location	Assets		Liabilities			Assets		Liabilities
Derivatives designated as hedging instruments
Commodity contracts	Current	$	67.1	$	(36.8	)	$	103.5	$	(16.4	)
	Long-term		16.4		(12.9	)		29.0		(3.0	)
Total derivatives designated as hedging instruments		$	83.5	$	(49.7	)	$	132.5	$	(19.4	)
Derivatives not designated as hedging instruments
Commodity contracts	Current	$	5.5	$	(40.0	)	$	8.4	$	(37.6	)
	Long-term		0.7		(26.9	)		4.3		(13.8	)
Total derivatives not designated as hedging instruments		$	6.2	$	(66.9	)	$	12.7	$	(51.4	)
Total current position		$	72.6	$	(76.8	)	$	111.9	$	(54.0	)
Total long-term position			17.1		(39.8	)		33.3		(16.8	)
Total derivatives		$	89.7	$	(116.6	)	$	145.2	$	(70.8	)

The pro forma impact of reporting derivatives on our Consolidated Balance Sheets on a net basis is as follows:

		Gross Presentation								Pro Forma Net Presentation
March 31, 2024		Asset		Liability			Collateral			Asset		Liability
Current Position
	Counterparties with offsetting positions or collateral	$	72.6	$	(70.4	)	$	11.5		$	25.6	$	(11.9	)
	Counterparties without offsetting positions - assets		—		—			—			—		—
	Counterparties without offsetting positions - liabilities		—		(6.4	)		—			—		(6.4	)
			72.6		(76.8	)		11.5			25.6		(18.3	)
Long-Term Position
	Counterparties with offsetting positions or collateral		17.1		(36.1	)		5.2			3.1		(16.9	)
	Counterparties without offsetting positions - assets		—		—			—			—		—
	Counterparties without offsetting positions - liabilities		—		(3.7	)		—			—		(3.7	)
			17.1		(39.8	)		5.2			3.1		(20.6	)
Total Derivatives
	Counterparties with offsetting positions or collateral		89.7		(106.5	)		16.7			28.7		(28.8	)
	Counterparties without offsetting positions - assets		—		—			—			—		—
	Counterparties without offsetting positions - liabilities		—		(10.1	)		—			—		(10.1	)
		$	89.7	$	(116.6	)	$	16.7		$	28.7	$	(38.9	)
		Gross Presentation								Pro Forma Net Presentation
December 31, 2023		Asset		Liability			Collateral			Asset		Liability
Current Position
	Counterparties with offsetting positions or collateral	$	111.7	$	(54.0	)	$	3.6		$	69.2	$	(7.9	)
	Counterparties without offsetting positions - assets		0.2		—			—			0.2		—
	Counterparties without offsetting positions - liabilities		—		—			—			—		—
			111.9		(54.0	)		3.6			69.4		(7.9	)
Long-Term Position
	Counterparties with offsetting positions or collateral		31.7		(16.8	)		(0.1	)		17.0		(2.2	)
	Counterparties without offsetting positions - assets		1.6		—			—			1.6		—
	Counterparties without offsetting positions - liabilities		—		—			—			—		—
			33.3		(16.8	)		(0.1	)		18.6		(2.2	)
Total Derivatives
	Counterparties with offsetting positions or collateral		143.4		(70.8	)		3.5			86.2		(10.1	)
	Counterparties without offsetting positions - assets		1.8		—			—			1.8		—
	Counterparties without offsetting positions - liabilities		—		—			—			—		—
		$	145.2	$	(70.8	)	$	3.5		$	88.0	$	(10.1	)

Some of our hedges are futures contracts executed through brokers that clear the hedges through an exchange. We maintain a margin deposit with the brokers in an amount sufficient to cover the fair value of our open futures positions. The margin deposit is considered collateral, which is located within Other current assets on our Consolidated Balance Sheets and is not offset against the fair value of our derivative instruments. Our derivative instruments other than our futures contracts are executed under International Swaps and Derivatives Association agreements (“ISDAs”), which govern the key terms with our counterparties. Our ISDAs contain credit-risk related contingent features. Following the release of the collateral securing our TRGP Revolver, our derivative positions are no longer secured. As of March 31, 2024, we have outstanding net derivative positions that contain credit-risk related contingent features that are in a net liability position of $31.1 million. We have not been required to post any collateral related to these positions due to our credit rating. If our credit rating was to be downgraded one notch below investment grade by both Moody’s Investors Service, Inc. and Standard & Poor’s Financial Services LLC, as defined in our ISDAs, we estimate that as of March 31, 2024, we would not be required to post collateral to any counterparties per the terms of our ISDAs.

The fair value of our derivative instruments, depending on the type of instrument, was determined by the use of present value methods or standard option valuation models with assumptions about commodity prices based on those observed in underlying markets. The estimated fair value of our derivative instruments was a net liability of $26.9 million as of March 31, 2024. The estimated fair value is net of an adjustment for credit risk based on the default probabilities as indicated by market quotes for the counterparties’ credit default swap rates. The credit risk adjustment was immaterial for all periods presented. Our futures contracts that are cleared through an exchange are margined daily and do not require any credit adjustment.

The following tables reflect amounts recorded in Other comprehensive income (“OCI”) and amounts reclassified from OCI to revenue for the periods indicated:

	Gain (Loss) Recognized in OCI on Derivatives (Effective Portion)
Derivatives in Cash Flow	Three Months Ended March 31,
Hedging Relationships	2024			2023
Commodity contracts	$	(70.3	)	$	83.9

	Gain (Loss) Reclassified from OCI into Income (Effective Portion)
	Three Months Ended March 31,
Location of Gain (Loss)	2024			2023
Revenues	$	(3.2	)	$	45.2

Based on valuations as of March 31, 2024, we expect to reclassify commodity hedge-related deferred gains of $36.4 million included in accumulated other comprehensive income (loss) into earnings before income taxes through the end of 2026, with $32.8 million of gains to be reclassified over the next twelve months.

Our consolidated earnings are also affected by the use of the mark-to-market method of accounting for derivative instruments that do not qualify for hedge accounting or that have not been designated as hedges. The changes in fair value of these instruments are recorded on the balance sheet and through earnings rather than being deferred until the anticipated transaction settles. The use of mark-to-market accounting for financial assets and liabilities (“financial instruments”) can cause non-cash earnings volatility due to changes in the underlying commodity price indices. For the three months ended March 31, 2024, the unrealized mark-to-market losses are primarily attributable to unfavorable movements in natural gas forward basis prices, as compared to our positions.

	Location of Gain (Loss)	Gain (Loss) Recognized in Income on Derivatives
Derivatives Not Designated	Recognized in Income on	Three Months Ended March 31,
as Hedging Instruments	Derivatives	2024			2023
Commodity contracts	Revenue	$	(31.9	)	$	178.0

See Note 11 – Fair Value Measurements and Note 16 – Segment Information for additional disclosures related to derivative instruments and hedging activities.

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Fair Value Measurements

3 Months Ended

Mar. 31, 2024

Fair Value Disclosures [Abstract]

Fair Value Measurements

Note 11 — Fair Value Measurements

Under GAAP, our Consolidated Balance Sheets reflect a mixture of measurement methods for financial instruments. Derivative financial instruments are reported at fair value on our Consolidated Balance Sheets. Other financial instruments are reported at historical cost or amortized cost on our Consolidated Balance Sheets. The following are additional qualitative and quantitative disclosures regarding fair value measurements of financial instruments.

Fair Value of Derivative Financial Instruments

Our derivative instruments consist of financially settled commodity swaps, futures, option contracts and fixed-price forward commodity contracts with certain counterparties. We determine the fair value of our derivative instruments using present value methods or standard option valuation models with assumptions about commodity prices based on those observed in underlying markets. We have consistently applied these valuation techniques in all periods presented and we believe we have obtained the most accurate information available for the types of derivative instruments we hold.

The fair values of our derivative instruments are sensitive to changes in forward pricing on natural gas, NGLs and crude oil. The derivatives at March 31, 2024, represent a net liability position of $26.9 million, and reflects the present value, adjusted for counterparty credit risk, of the amount we expect to receive or pay in the future on our derivative instruments. If forward pricing on natural gas, NGLs and crude oil were to increase by 10%, the result would be a fair value reflecting a net liability of $137.9 million. If forward pricing on natural gas, NGLs and crude oil were to decrease by 10%, the result would be a fair value reflecting a net asset of $84.2 million.

Fair Value of Other Financial Instruments

Due to their cash or near-cash nature, the carrying value of other financial instruments included in working capital (i.e., cash and cash equivalents, accounts receivable, accounts payable) approximates their fair value. Long-term debt is primarily the other financial instrument for which carrying value could vary significantly from fair value. We determined the supplemental fair value disclosures for our long-term debt as follows:

•the TRGP Revolver, commercial paper notes, Securitization Facility and Term Loan Facility are based on carrying value, which approximates fair value as their interest rates are based on prevailing market rates; and

•the TRGP senior unsecured notes and the Partnership’s senior unsecured notes are based on quoted market prices derived from trades of the debt.

Fair Value Hierarchy

We categorize the inputs to the fair value measurements of financial assets and liabilities at each balance sheet reporting date using a three-tier fair value hierarchy that prioritizes the significant inputs used in measuring fair value:

•Level 1 – observable inputs such as quoted prices in active markets;

•Level 2 – inputs other than quoted prices in active markets that we can directly or indirectly observe to the extent that the markets are liquid for the relevant settlement periods; and

•Level 3 – unobservable inputs in which little or no market data exists, therefore we must develop our own assumptions.

The following table shows a breakdown by fair value hierarchy category for (i) financial instruments measurements included on our Consolidated Balance Sheets at fair value, and (ii) supplemental fair value disclosures for other financial instruments:

	March 31, 2024
	Carrying		Fair Value
	Value		Total		Level 1		Level 2		Level 3
Financial Instruments Recorded on Our Consolidated Balance Sheets at Fair Value:
Assets from commodity derivative contracts (1)	$	86.6	$	86.6	$	—	$	86.6	$	—
Liabilities from commodity derivative contracts (1)		113.5		113.5		—		113.5		—
Financial Instruments Recorded on Our Consolidated Balance Sheets at Carrying Value:
Cash and cash equivalents		109.9		109.9		—		—		—
TRGP Revolver and Commercial Paper Program		360.0		360.0		—		360.0		—
TRGP Senior unsecured notes		6,470.3		6,555.0		—		6,555.0		—
Term Loan Facility		500.0		500.0		—		500.0		—
Partnership’s Senior unsecured notes		5,034.4		4,907.3		—		4,907.3		—
Securitization Facility		500.0		500.0		—		500.0		—

	December 31, 2023
	Carrying		Fair Value
	Value		Total		Level 1		Level 2		Level 3
Financial Instruments Recorded on Our Consolidated Balance Sheets at Fair Value:
Assets from commodity derivative contracts (1)	$	144.6	$	144.6	$	—	$	144.6	$	—
Liabilities from commodity derivative contracts (1)		70.2		70.2		—		70.2		—
Financial Instruments Recorded on Our Consolidated Balance Sheets at Carrying Value:
Cash and cash equivalents		141.7		141.7		—		—		—
TRGP Revolver and Commercial Paper Program		175.0		175.0		—		175.0		—
TRGP Senior unsecured notes		6,470.5		6,598.7		—		6,598.7		—
Term Loan Facility		500.0		500.0		—		500.0		—
Partnership’s Senior unsecured notes		5,034.4		4,945.1		—		4,945.1		—
Securitization Facility		575.0		575.0		—		575.0		—

(1)The fair value of derivative contracts in this table is presented on a different basis than the Consolidated Balance Sheets presentation as disclosed in Note 10 – Derivative Instruments and Hedging Activities. The above fair values reflect the total value of each derivative contract taken as a whole, whereas the Consolidated Balance Sheets presentation is based on the individual maturity dates of estimated future settlements. As such, an individual contract could have both an asset and liability position when segregated into its current and long-term portions for Consolidated Balance Sheets classification purposes.

Additional Information Regarding Level 3 Fair Value Measurements Included on Our Consolidated Balance Sheets

We have historically reported certain of our swaps and option contracts at fair value using Level 3 inputs due to such derivatives not having observable market prices or implied volatilities for substantially the full term of the derivative asset or liability. For valuations that include both observable and unobservable inputs, if the unobservable input was determined to be significant to the overall inputs, the entire valuation was categorized in Level 3. This included derivatives valued using indicative price quotations whose contract length extends into unobservable periods.

The fair value of these swaps was determined using a discounted cash flow valuation technique based on a commodity forward curve. For these derivatives, the primary input to the valuation model was the commodity forward curve, which was based on observable or public data sources and extrapolated when observable prices were not available.

The significant unobservable inputs used in the fair value measurements of our Level 3 derivatives were the forward natural gas liquids pricing curves, for which a significant portion of the derivative’s term is beyond available forward pricing. As of March 31, 2024 and December 31, 2023, we had no derivative contracts categorized as Level 3.

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Contingencies

3 Months Ended

Mar. 31, 2024

Loss Contingency [Abstract]

Contingencies

Note 12 — Contingencies

Legal Proceedings

We and the Partnership are parties to various legal, administrative and regulatory proceedings that have arisen in the ordinary course of our business. We and the Partnership are also parties to various proceedings with governmental environmental agencies, including, but not limited to the U.S. Environmental Protection Agency, Texas Commission on Environmental Quality, Oklahoma Department of Environmental Quality, New Mexico Environment Department, Louisiana Department of Environmental Quality and North Dakota Department of Environmental Quality, which assert monetary sanctions for alleged violations of environmental regulations, including air emissions, discharges into the environment and reporting deficiencies, related to events that have arisen at certain of our facilities in the ordinary course of our business.

On December 26, 2018, Vitol filed a lawsuit in the 80th District Court of Harris County (the “District Court”), Texas against Targa Channelview LLC, then a subsidiary of the Company (“Targa Channelview”), seeking recovery of $129.0 million in payments made to Targa Channelview, additional monetary damages, attorneys’ fees and costs. Vitol alleged that Targa Channelview breached the Splitter Agreement, which provided for Targa Channelview to construct a crude oil and condensate splitter (the “Splitter”) adjacent to a barge dock owned by Targa Channelview to provide services contemplated by the Splitter Agreement. In January 2018, Vitol acquired Noble Americas Corp. and on December 23, 2018, Vitol voluntarily elected to terminate the Splitter Agreement claiming that Targa Channelview failed to timely achieve start-up of the Splitter. Vitol’s lawsuit also alleged Targa Channelview made a series of misrepresentations about the capability of the barge dock that would service crude oil and condensate volumes to be processed by the Splitter and Splitter products. Vitol sought return of $129.0 million in payments made to Targa Channelview prior to the start-up of the Splitter, as well as additional damages. On the same date that Vitol filed its lawsuit, Targa Channelview filed a lawsuit against Vitol seeking a judicial determination that Vitol’s sole and exclusive remedy was Vitol’s voluntarily termination of the Splitter Agreement and, as a result, Vitol was not entitled to the return of any prior payments under the Splitter Agreement or other damages as alleged. Targa also sought recovery of its attorneys’ fees and costs in the lawsuit.

On October 15, 2020, the District Court awarded Vitol $129.0 million (plus interest) following a bench trial. In addition, the District Court awarded Vitol $10.5 million in damages for losses and demurrage on crude oil that Vitol purchased for start-up efforts. The Company appealed the award in the Fourteenth Court of Appeals in Houston, Texas. In October 2020, we sold Targa Channelview but, under the agreements governing the sale, we retained the liabilities associated with the Vitol proceedings. On September 13, 2022, the Fourteenth Court of Appeals upheld the trial court’s judgment in part with regard to the return of Vitol’s prior payments, but modified the judgment to delete Vitol’s ability to recover any damages related to losses or demurrage on crude oil. We filed a petition for review with the Supreme Court of Texas, which was denied on October 20, 2023. We then filed a petition for rehearing with the Supreme Court of Texas, which was denied on April 19, 2024. As a result of the April 2024 ruling, the $129.0 million payments from Vitol were reclassified from Other long-term liabilities to Accrued liabilities on our Consolidated Balance Sheets as of March 31, 2024. Additionally, cumulative interest on the award of $54.9 million was recorded in Interest expense, net on our Consolidated Statements of Operations for the three months ended March 31, 2024. See Note 7 – Other Long-term Liabilities.

On July 24, 2023, we received a Notice of Violation from the New Mexico Environment Department, Air Quality Bureau, relating to alleged air permit violations between August 1, 2021 and June 30, 2022 by Lucid Energy Delaware, LLC, an entity we subsequently acquired in July 2022 in the Delaware Basin Acquisition and whose assets are now integrated into Targa Northern Delaware LLC, a wholly-owned subsidiary of the Company. We have been engaging with the New Mexico Environment Department to resolve this matter. Although this matter is ongoing and management cannot predict its ultimate outcome, the resolution of this matter may result in

a fine or penalty in excess of $0.3 million. We do not expect that any expenditures related to this matter will be material to our consolidated financial statements.

On October 26, 2023, we received a final judgment in a lawsuit alleging a breach of contract related to the major winter storm in February 2021. The damages awarded against us are approximately $6.9 million, not including pre-judgment interest. Both parties are appealing the judgment.

We are also a defendant in two other breach of contract cases related to force majeure events arising during the major winter storm in February 2021. We believe that the likelihood of a partial loss could be reasonably possible, and, while it is not possible to predict the ultimate outcome of these cases on an individual or consolidated basis, we estimate that the total range of potential loss resulting from all of these cases could be between $0 and $10.0 million in the aggregate. We intend to continue to vigorously defend these cases.

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Revenue

3 Months Ended

Mar. 31, 2024

Revenue from Contract with Customer [Abstract]

Revenue

Note 13 — Revenue

Fixed consideration allocated to remaining performance obligations

The following table presents the estimated minimum revenue related to unsatisfied performance obligations at the end of the reporting period and is comprised of fixed consideration primarily attributable to contracts with minimum volume commitments, for which a guaranteed amount of revenue can be calculated. These contracts are comprised primarily of gathering and processing, fractionation, export, terminaling and storage agreements, with remaining contract terms ranging from 1 to 15 years.

	2024		2025		2026 and after
Fixed consideration to be recognized as of March 31, 2024	$	379.2	$	432.4	$	2,406.1

Based on the optional exemptions that we elected to apply, the amounts presented in the table above exclude remaining performance obligations for (i) variable consideration for which the allocation exception is met and (ii) contracts with an original expected duration of one year or less.

For disclosures related to disaggregated revenue, see Note 16 – Segment Information.

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Income Taxes

3 Months Ended

Mar. 31, 2024

Income Tax Disclosure [Abstract]

Income Taxes

Note 14 — Income Taxes

We record income taxes using an estimated annual effective tax rate and recognize specific events discretely as they occur. Our effective tax rate for the three months ended March 31, 2024 is lower than the U.S. corporate statutory rate of 21% primarily due to income allocated to noncontrolling interests that is not taxable to the Company and excess tax-deductible stock compensation. The effective tax rate for the three months ended March 31, 2023 was lower than the U.S. corporate statutory rate of 21% primarily due to the release of a portion of our state tax valuation allowances in addition to income allocated to noncontrolling interests that is not taxable to the Company.

We regularly evaluate the realizable tax benefits of deferred tax assets and record a valuation allowance, if required, based on an estimate of the amount of deferred tax assets that we believe does not meet the more-likely-than-not criteria of being realized. As of March 31, 2024 and December 31, 2023, our valuation allowance was $7.1 million.

We are subject to tax in the U.S. and various state jurisdictions and we are subject to periodic audits and reviews by taxing authorities. As of March 31, 2024, Internal Revenue Service (“IRS”) examinations are currently in process for the 2019, 2020 and 2021 taxable years of certain wholly-owned and consolidated subsidiaries that are treated as partnerships for U.S. federal income tax purposes. We are responding to information requests from the IRS with respect to these audits. We are not aware of any potential audit findings that would give rise to adjustments to taxable income and do not anticipate material changes related to these audits.

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Supplemental Cash Flow Information

3 Months Ended

Mar. 31, 2024

Supplemental Cash Flow Information [Abstract]

Supplemental Cash Flow Information

Note 15 — Supplemental Cash Flow Information

	Three Months Ended March 31,
	2024		2023
Cash:
Interest paid, net of capitalized interest (1)	$	268.2	$	211.6
Income taxes (received) paid, net		0.3		0.1
Non-cash investing activities:
Impact of capital expenditure accruals on property, plant and equipment, net	$	54.4	$	(21.4	)
Non-cash financing activities:
Changes in accrued distributions to noncontrolling interests	$	2.6	$	8.8

(1)Interest capitalized on major projects was $16.2 million and $6.7 million for the three months ended March 31, 2024 and 2023.

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Segment Information

3 Months Ended

Mar. 31, 2024

Segment Reporting [Abstract]

Segment Information

Note 16 — Segment Information

We operate in two primary segments: (i) Gathering and Processing, and (ii) Logistics and Transportation (also referred to as the Downstream Business). Our reportable segments include operating segments that have been aggregated based on the nature of the products and services provided.

Our Gathering and Processing segment includes assets used in the gathering and/or purchase and sale of natural gas produced from oil and gas wells, removing impurities and processing this raw natural gas into merchantable natural gas by extracting NGLs; and assets used for the gathering and terminaling and/or purchase and sale of crude oil. The Gathering and Processing segment’s assets are located in the Permian Basin of West Texas and Southeast New Mexico (including the Midland, Central and Delaware Basins); the Eagle Ford Shale in South Texas; the Barnett Shale in North Texas; the Anadarko, Ardmore, and Arkoma Basins in Oklahoma (including the SCOOP and STACK) and South Central Kansas; the Williston Basin in North Dakota (including the Bakken and Three Forks plays); and the onshore and near offshore regions of the Louisiana Gulf Coast and the Gulf of Mexico.

Our Logistics and Transportation segment includes the activities and assets necessary to convert mixed NGLs into NGL products and also includes other assets and value-added services such as transporting, storing, fractionating, terminaling, and marketing of NGLs and NGL products, including services to LPG exporters and certain natural gas supply and marketing activities in support of our other businesses. The Logistics and Transportation segment also includes Grand Prix, which connects our gathering and processing positions in the Permian Basin, Southern Oklahoma and North Texas with our Downstream facilities in Mont Belvieu, Texas. The associated assets are generally connected to and supplied in part by our Gathering and Processing segment and, except for pipelines and smaller terminals, are located predominantly in Mont Belvieu and Galena Park, Texas, and in Lake Charles, Louisiana.

Other contains the unrealized mark-to-market gains/losses related to derivative contracts that were not designated as cash flow hedges. Elimination of inter-segment transactions are reflected in the corporate and eliminations column.

Reportable segment information is shown in the following tables:

	Three Months Ended March 31, 2024
	Gathering and Processing			Logistics and Transportation		Other			Corporate and Eliminations			Total
Revenues
Sales of commodities	$	272.7		$	3,702.4	$	(22.1	)	$	—		$	3,953.0
Fees from midstream services		413.3			196.1		—			—			609.4
		686.0			3,898.5		(22.1	)		—			4,562.4
Intersegment revenues
Sales of commodities		1,130.6			46.9		—			(1,177.5	)		—
Fees from midstream services		(1.8	)		6.9		—			(5.1	)		—
		1,128.8			53.8		—			(1,182.6	)		—
Revenues	$	1,814.8		$	3,952.3	$	(22.1	)	$	(1,182.6	)	$	4,562.4
Operating margin (1)	$	556.4		$	532.1	$	(22.1	)
Other financial information:
Total assets (2)	$	12,815.6		$	7,870.1	$	3.1		$	157.3		$	20,846.1
Goodwill	$	45.2		$	—	$	—		$	—		$	45.2
Capital expenditures	$	435.0		$	293.6	$	—		$	1.1		$	729.7

	Three Months Ended March 31, 2023
	Gathering and Processing		Logistics and Transportation		Other		Corporate and Eliminations			Total
Revenues
Sales of commodities	$	287.9	$	3,561.3	$	175.8	$	—		$	4,025.0
Fees from midstream services		320.4		175.1		—		—			495.5
		608.3		3,736.4		175.8		—			4,520.5
Intersegment revenues
Sales of commodities		1,347.0		78.2		—		(1,425.2	)		—
Fees from midstream services		0.5		10.8		—		(11.3	)		—
		1,347.5		89.0		—		(1,436.5	)		—
Revenues	$	1,955.8	$	3,825.4	$	175.8	$	(1,436.5	)	$	4,520.5
Operating margin (1)	$	538.4	$	529.1	$	175.8
Other financial information:
Total assets (2)	$	12,199.9	$	6,558.4	$	4.2	$	263.0		$	19,025.5
Goodwill	$	45.2	$	—	$	—	$	—		$	45.2
Capital expenditures	$	269.5	$	176.6	$	—	$	8.2		$	454.3

(1)Operating margin is calculated by subtracting Product purchases and fuel and Operating expenses from Revenues.

(2)Assets in the Corporate and Eliminations column primarily include tax-related assets, cash, prepaids and debt issuance costs for our revolving credit facility.

The following table shows our consolidated revenues disaggregated by product and service for the periods presented:

	Three Months Ended March 31,
	2024			2023
Sales of commodities:
Revenue recognized from contracts with customers:
Natural gas	$	494.6		$	816.1
NGL		3,356.3			2,864.5
Condensate and crude oil		137.2			121.2
		3,988.1			3,801.8
Non-customer revenue:
Derivative activities - Hedge		(3.2	)		45.2
Derivative activities - Non-hedge (1)		(31.9	)		178.0
		(35.1	)		223.2
Total sales of commodities		3,953.0			4,025.0
Fees from midstream services:
Revenue recognized from contracts with customers:
Gathering and processing		405.9			315.5
NGL transportation, fractionation and services		63.0			56.1
Storage, terminaling and export		125.7			108.8
Other		14.8			15.1
Total fees from midstream services		609.4			495.5
Total revenues	$	4,562.4		$	4,520.5

(1)Represents derivative activities that are not designated as hedging instruments under ASC 815.

The following table shows a reconciliation of reportable segment Operating margin to Income (loss) before income taxes for the periods presented:

	Three Months Ended March 31,
	2024			2023
Reconciliation of reportable segment operating margin to income (loss) before income taxes:
Gathering and Processing operating margin	$	556.4		$	538.4
Logistics and Transportation operating margin		532.1			529.1
Other operating margin		(22.1	)		175.8
Depreciation and amortization expense		(340.5	)		(324.8	)
General and administrative expense		(86.5	)		(82.4	)
Other operating income (expense)		—			0.6
Interest expense, net		(228.6	)		(168.0	)
Equity earnings (loss)		2.8			(0.2	)
Other, net		1.7			(3.0	)
Income (loss) before income taxes	$	415.3		$	665.5

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Significant Accounting Policies (Policies)

3 Months Ended

Mar. 31, 2024

Accounting Policies [Abstract]

Recently issued accounting pronouncements not yet adopted

Recently issued accounting pronouncements not yet adopted

Improvements to Reportable Segment Disclosures

In November 2023, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”) 2023-07, Segment Reporting (Topic 280): Improvements to Reportable Segment Disclosures. The amendments in this update require, among other items, that public entities disclose, on an annual and interim basis, significant segment expenses that are regularly provided to the chief operating decision maker (“CODM”) and included within each reported measure of segment profit or loss. Additionally, the amendments require annual disclosure of the title and position of the CODM and how that individual uses the reported measure(s) of segment profit or loss in assessing segment performance and how to allocate resources.

These amendments are effective for fiscal years beginning after December 15, 2023, and for interim periods within fiscal years beginning after December 15, 2024, with early adoption permitted. The disclosures required in the amendments apply retrospectively to all prior periods presented in the financial statements. We are evaluating the effect of the amendments on our consolidated financial statements and expect to disclose the required information for fiscal years beginning in the Annual Report on Form 10-K for the year ended December 31, 2024 and for interim periods beginning in the Quarterly Report on Form 10-Q for the quarter ended March 31, 2025.

Improvements to Income Tax Disclosures

In December 2023, the FASB issued ASU 2023-09, Income Taxes (Topic 740): Improvements to Income Tax Disclosures. The amendments in this update require, among other items, that public entities disclose, on an annual and interim basis, (i) specific categories of income taxes in the rate reconciliation, and (ii) a disaggregation of income taxes paid by federal, state, and foreign taxes.

These amendments are effective for fiscal years beginning after December 15, 2024, with early adoption permitted. The amendments are required to be applied prospectively with retrospective application permitted. We are evaluating the effect of the amendments on our consolidated financial statements and expect to disclose the required information beginning in the Annual Report on Form 10-K for the year ended December 31, 2025.

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Property, Plant and Equipment and Intangible Assets (Tables)

3 Months Ended

Mar. 31, 2024

Property Plant And Equipment And Intangible Assets [Abstract]

Property Plant and Equipment and Intangible Assets

	March 31, 2024			December 31, 2023			Estimated Useful Lives (In Years)
Gathering systems	$	10,961.3		$	10,858.3		5 to 20
Processing and fractionation facilities		8,346.6			8,285.5		5 to 25
Terminaling and storage facilities		1,408.3			1,403.9		5 to 25
Transportation assets		3,366.0			3,294.0		10 to 50
Other property, plant and equipment		440.4			430.5		3 to 50
Land		184.7			185.0		—
Construction in progress		1,928.5			1,456.1		—
Finance lease right-of-use assets		348.1			351.9		5 to 14
Property, plant and equipment		26,983.9			26,265.2
Accumulated depreciation, amortization and impairment		(10,701.1	)		(10,458.8	)
Property, plant and equipment, net	$	16,282.8		$	15,806.4
Intangible assets		4,378.0			4,378.0		10 to 20
Accumulated amortization and impairment		(2,120.7	)		(2,027.4	)
Intangible assets, net	$	2,257.3		$	2,350.6

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Debt Obligations (Tables)

3 Months Ended

Mar. 31, 2024

Debt Disclosure [Abstract]

Schedule of Outstanding Debt

	March 31, 2024			December 31, 2023
Current:
Partnership accounts receivable securitization facility, due August 2024 (1)	$	500.0		$	575.0
Finance lease liabilities		46.1			45.7
Current debt obligations		546.1			620.7
Long-term:
Term loan facility, variable rate, due July 2025		500.0			500.0
TRGP senior revolving credit facility, variable rate, due February 2027 (2)		360.0			175.0
Senior unsecured notes issued by TRGP:
5.200% fixed rate, due July 2027		750.0			750.0
6.150% fixed rate, due March 2029		1,000.0			1,000.0
4.200% fixed rate, due February 2033		750.0			750.0
6.125% fixed rate, due March 2033		900.0			900.0
6.500% fixed rate, due March 2034		1,000.0			1,000.0
4.950% fixed rate, due April 2052		750.0			750.0
6.250% fixed rate, due July 2052		500.0			500.0
6.500% fixed rate, due February 2053		850.0			850.0
Unamortized discount		(29.7	)		(29.5	)
Senior unsecured notes issued by the Partnership: (3)
6.500% fixed rate, due July 2027		705.2			705.2
5.000% fixed rate, due January 2028		700.3			700.3
6.875% fixed rate, due January 2029		679.3			679.3
5.500% fixed rate, due March 2030		949.6			949.6
4.875% fixed rate, due February 2031		1,000.0			1,000.0
4.000% fixed rate, due January 2032		1,000.0			1,000.0
		12,364.7			12,179.9
Debt issuance costs, net of amortization		(87.8	)		(90.8	)
Finance lease liabilities		233.0			244.1
Long-term debt		12,509.9			12,333.2
Total debt obligations	$	13,056.0		$	12,953.9
Irrevocable standby letters of credit: (2)
Letters of credit outstanding under the TRGP senior revolving credit facility	$	32.5		$	22.3

(1)As of March 31, 2024, the Partnership had $500.0 million of qualifying receivables under its $600.0 million accounts receivable securitization facility (the “Securitization Facility”), resulting in $100.0 million of availability.

(2)We maintain an unsecured commercial paper note program (the “Commercial Paper Program”), the borrowings of which are supported through maintaining a minimum available borrowing capacity under our $2.75 billion TRGP senior revolving credit facility (the “TRGP Revolver”) equal to the aggregate amount outstanding under the Commercial Paper Program. As of March 31, 2024, the TRGP Revolver had no borrowings outstanding and the Commercial Paper Program had $360.0 million borrowings outstanding, resulting in approximately $2.4 billion of available liquidity, after accounting for outstanding letters of credit.

(3)We guarantee all of the Partnership’s outstanding senior unsecured notes.

Range of Interest Rates and Weighted Average Interest Rate Incurred on Variable Rate Debt Obligations

The following table shows the range of interest rates and weighted average interest rate incurred on our variable-rate debt obligations during the three months ended March 31, 2024:

	Range of Interest Rates Incurred	Weighted Average Interest Rate Incurred
TRGP Revolver and Commercial Paper Program	5.9% - 6.2%	6.0%
Securitization Facility	6.3% - 6.4%	6.3%
Term Loan Facility	6.7% - 6.8%	6.8%

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Other Long-term Liabilities (Tables)

3 Months Ended

Mar. 31, 2024

Other Liabilities, Noncurrent [Abstract]

Schedule of Other Long-term Liabilities

Other long-term liabilities are comprised of the following:

	March 31, 2024		December 31, 2023
Deferred revenue	$	119.1	$	248.8
Asset retirement obligations		104.6		103.0
Operating lease liabilities		76.6		56.5
Other liabilities		3.8		6.8
Total other long-term liabilities	$	304.1	$	415.1

Components of deferred revenue

The following table shows the components of deferred revenue:

	March 31, 2024		December 31, 2023
Contributions in aid of construction	$	86.9	$	86.4
Gas contract amendment		29.2		29.8
Splitter agreement		—		129.0
Other		3.0		3.6
Total deferred revenue	$	119.1	$	248.8

Changes in Deferred revenue

The following table shows the changes in deferred revenue:

Balance at December 31, 2023	$	248.8
Additions		3.6
Reclassification to accrued liabilities		(129.0	)
Revenue recognized		(4.3	)
Balance at March 31, 2024	$	119.1

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Common Stock and Related Matters (Tables)

3 Months Ended

Mar. 31, 2024

Class of Stock Disclosures [Abstract]

Dividends Declared and/or Paid

The following table details the dividends declared and/or paid by us to common shareholders for the three months ended March 31, 2024:

Three Months Ended	Date Paid or To Be Paid	Total Common Dividends Declared		Amount of Common Dividends Paid or To Be Paid		Dividends on Share-Based Awards		Dividends Declared per Share of Common Stock
(In millions, except per share amounts)
March 31, 2024	May 15, 2024	$	168.1	$	166.3	$	1.8	$	0.75000
December 31, 2023	February 15, 2024		112.8		111.6		1.2		0.50000

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Earnings per Common Share (Tables)

3 Months Ended

Mar. 31, 2024

Earnings Per Share [Abstract]

Reconciliation of Net Income and Weighted Average Shares Outstanding Used in Computing Basic and Diluted Net Income Per Common Share

The following table sets forth a reconciliation of net income and weighted average shares outstanding used in computing basic and diluted net income per common share:

	Three Months Ended March 31,
	2024		2023
	(In millions, except per share amounts)
Net income (loss) attributable to Targa Resources Corp.	$	275.2	$	497.0
Less: Premium on repurchase of noncontrolling interests, net of tax (1)		—		490.7
Net income (loss) attributable to common shareholders		275.2		6.3
Less: Participating share-based earnings (2)		2.2		—
Net income (loss) allocated to common shareholders for basic earnings per share	$	273.0	$	6.3
Weighted average shares outstanding - basic		222.8		226.4
Dilutive effect of unvested stock awards		0.9		2.9
Weighted average shares outstanding - diluted		223.7		229.3
Net income (loss) available per common share - basic	$	1.23	$	0.03
Net income (loss) available per common share - diluted	$	1.22	$	0.03

(1)Represents premium paid on the Grand Prix Transaction. See Note 4 – Acquisitions.

(2)Represents the distributed and undistributed earnings of the Company attributable to the participating securities. The dilutive effect of the reallocation of participating securities to diluted net income attributable to common shareholders was immaterial.

Summary of Potential Common Stock Equivalents Excluded from Determination of Diluted Earnings Per Share

The following potential common stock equivalents are excluded from the determination of diluted earnings per share because the inclusion of such shares would have been anti-dilutive (in millions on a weighted-average basis):

	Three Months Ended March 31,
	2024		2023
Unvested restricted stock awards		1.1		0.1

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Derivative Instruments and Hedging Activities (Tables)

3 Months Ended

Mar. 31, 2024

Derivative Instruments and Hedging Activities Disclosure [Abstract]

Notional Volume of Commodity Hedges

At March 31, 2024, the notional volumes of our commodity derivative contracts were:

Commodity	Instrument	Unit	2024		2025		2026		2027
Natural Gas	Swaps	MMBtu/d		100,136		63,156		29,623		—
Natural Gas	Basis Swaps	MMBtu/d		437,909		257,082		152,500		65,000
NGL	Swaps	Bbl/d		29,563		21,354		8,768		—
NGL	Futures	Bbl/d		8,585		4,682		—		—
Condensate	Swaps	Bbl/d		4,442		3,447		1,881		—

Fair Values of Derivative Instruments

The following schedules reflect the fair value of our derivative instruments and their location on our Consolidated Balance Sheets as well as pro forma reporting assuming that we reported derivatives subject to master netting agreements on a net basis:

		Fair Value as of March 31, 2024					Fair Value as of December 31, 2023
	Balance Sheet	Derivative		Derivative			Derivative		Derivative
	Location	Assets		Liabilities			Assets		Liabilities
Derivatives designated as hedging instruments
Commodity contracts	Current	$	67.1	$	(36.8	)	$	103.5	$	(16.4	)
	Long-term		16.4		(12.9	)		29.0		(3.0	)
Total derivatives designated as hedging instruments		$	83.5	$	(49.7	)	$	132.5	$	(19.4	)
Derivatives not designated as hedging instruments
Commodity contracts	Current	$	5.5	$	(40.0	)	$	8.4	$	(37.6	)
	Long-term		0.7		(26.9	)		4.3		(13.8	)
Total derivatives not designated as hedging instruments		$	6.2	$	(66.9	)	$	12.7	$	(51.4	)
Total current position		$	72.6	$	(76.8	)	$	111.9	$	(54.0	)
Total long-term position			17.1		(39.8	)		33.3		(16.8	)
Total derivatives		$	89.7	$	(116.6	)	$	145.2	$	(70.8	)

Pro Forma Impact of Derivatives Net in Consolidated Balance Sheet

The pro forma impact of reporting derivatives on our Consolidated Balance Sheets on a net basis is as follows:

		Gross Presentation								Pro Forma Net Presentation
March 31, 2024		Asset		Liability			Collateral			Asset		Liability
Current Position
	Counterparties with offsetting positions or collateral	$	72.6	$	(70.4	)	$	11.5		$	25.6	$	(11.9	)
	Counterparties without offsetting positions - assets		—		—			—			—		—
	Counterparties without offsetting positions - liabilities		—		(6.4	)		—			—		(6.4	)
			72.6		(76.8	)		11.5			25.6		(18.3	)
Long-Term Position
	Counterparties with offsetting positions or collateral		17.1		(36.1	)		5.2			3.1		(16.9	)
	Counterparties without offsetting positions - assets		—		—			—			—		—
	Counterparties without offsetting positions - liabilities		—		(3.7	)		—			—		(3.7	)
			17.1		(39.8	)		5.2			3.1		(20.6	)
Total Derivatives
	Counterparties with offsetting positions or collateral		89.7		(106.5	)		16.7			28.7		(28.8	)
	Counterparties without offsetting positions - assets		—		—			—			—		—
	Counterparties without offsetting positions - liabilities		—		(10.1	)		—			—		(10.1	)
		$	89.7	$	(116.6	)	$	16.7		$	28.7	$	(38.9	)
		Gross Presentation								Pro Forma Net Presentation
December 31, 2023		Asset		Liability			Collateral			Asset		Liability
Current Position
	Counterparties with offsetting positions or collateral	$	111.7	$	(54.0	)	$	3.6		$	69.2	$	(7.9	)
	Counterparties without offsetting positions - assets		0.2		—			—			0.2		—
	Counterparties without offsetting positions - liabilities		—		—			—			—		—
			111.9		(54.0	)		3.6			69.4		(7.9	)
Long-Term Position
	Counterparties with offsetting positions or collateral		31.7		(16.8	)		(0.1	)		17.0		(2.2	)
	Counterparties without offsetting positions - assets		1.6		—			—			1.6		—
	Counterparties without offsetting positions - liabilities		—		—			—			—		—
			33.3		(16.8	)		(0.1	)		18.6		(2.2	)
Total Derivatives
	Counterparties with offsetting positions or collateral		143.4		(70.8	)		3.5			86.2		(10.1	)
	Counterparties without offsetting positions - assets		1.8		—			—			1.8		—
	Counterparties without offsetting positions - liabilities		—		—			—			—		—
		$	145.2	$	(70.8	)	$	3.5		$	88.0	$	(10.1	)

Amounts Recorded in Other Comprehensive Income ("OCI") and Amounts Reclassified from OCI to Revenue

The following tables reflect amounts recorded in Other comprehensive income (“OCI”) and amounts reclassified from OCI to revenue for the periods indicated:

	Gain (Loss) Recognized in OCI on Derivatives (Effective Portion)
Derivatives in Cash Flow	Three Months Ended March 31,
Hedging Relationships	2024			2023
Commodity contracts	$	(70.3	)	$	83.9

	Gain (Loss) Reclassified from OCI into Income (Effective Portion)
	Three Months Ended March 31,
Location of Gain (Loss)	2024			2023
Revenues	$	(3.2	)	$	45.2

Gain (Loss) Recognized in Income on Derivatives

The use of mark-to-market accounting for financial assets and liabilities (“financial instruments”) can cause non-cash earnings volatility due to changes in the underlying commodity price indices. For the three months ended March 31, 2024, the unrealized mark-to-market losses are primarily attributable to unfavorable movements in natural gas forward basis prices, as compared to our positions.

	Location of Gain (Loss)	Gain (Loss) Recognized in Income on Derivatives
Derivatives Not Designated	Recognized in Income on	Three Months Ended March 31,
as Hedging Instruments	Derivatives	2024			2023
Commodity contracts	Revenue	$	(31.9	)	$	178.0

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Fair Value Measurements (Tables)

3 Months Ended

Mar. 31, 2024

Fair Value Disclosures [Abstract]

Breakdown by Fair Value Hierarchy Category for Financial Instruments Included in Consolidated Balance Sheets

The following table shows a breakdown by fair value hierarchy category for (i) financial instruments measurements included on our Consolidated Balance Sheets at fair value, and (ii) supplemental fair value disclosures for other financial instruments:

	March 31, 2024
	Carrying		Fair Value
	Value		Total		Level 1		Level 2		Level 3
Financial Instruments Recorded on Our Consolidated Balance Sheets at Fair Value:
Assets from commodity derivative contracts (1)	$	86.6	$	86.6	$	—	$	86.6	$	—
Liabilities from commodity derivative contracts (1)		113.5		113.5		—		113.5		—
Financial Instruments Recorded on Our Consolidated Balance Sheets at Carrying Value:
Cash and cash equivalents		109.9		109.9		—		—		—
TRGP Revolver and Commercial Paper Program		360.0		360.0		—		360.0		—
TRGP Senior unsecured notes		6,470.3		6,555.0		—		6,555.0		—
Term Loan Facility		500.0		500.0		—		500.0		—
Partnership’s Senior unsecured notes		5,034.4		4,907.3		—		4,907.3		—
Securitization Facility		500.0		500.0		—		500.0		—

	December 31, 2023
	Carrying		Fair Value
	Value		Total		Level 1		Level 2		Level 3
Financial Instruments Recorded on Our Consolidated Balance Sheets at Fair Value:
Assets from commodity derivative contracts (1)	$	144.6	$	144.6	$	—	$	144.6	$	—
Liabilities from commodity derivative contracts (1)		70.2		70.2		—		70.2		—
Financial Instruments Recorded on Our Consolidated Balance Sheets at Carrying Value:
Cash and cash equivalents		141.7		141.7		—		—		—
TRGP Revolver and Commercial Paper Program		175.0		175.0		—		175.0		—
TRGP Senior unsecured notes		6,470.5		6,598.7		—		6,598.7		—
Term Loan Facility		500.0		500.0		—		500.0		—
Partnership’s Senior unsecured notes		5,034.4		4,945.1		—		4,945.1		—
Securitization Facility		575.0		575.0		—		575.0		—

(1)The fair value of derivative contracts in this table is presented on a different basis than the Consolidated Balance Sheets presentation as disclosed in Note 10 – Derivative Instruments and Hedging Activities. The above fair values reflect the total value of each derivative contract taken as a whole, whereas the Consolidated Balance Sheets presentation is based on the individual maturity dates of estimated future settlements. As such, an individual contract could have both an asset and liability position when segregated into its current and long-term portions for Consolidated Balance Sheets classification purposes.

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Revenue (Tables)

3 Months Ended

Mar. 31, 2024

Revenue from Contract with Customer [Abstract]

Summary of Estimated Minimum Revenue Expected to be Recognized in Future Related to Unsatisfied Performance Obligations

The following table presents the estimated minimum revenue related to unsatisfied performance obligations at the end of the reporting period and is comprised of fixed consideration primarily attributable to contracts with minimum volume commitments, for which a guaranteed amount of revenue can be calculated. These contracts are comprised primarily of gathering and processing, fractionation, export, terminaling and storage agreements, with remaining contract terms ranging from 1 to 15 years.

	2024		2025		2026 and after
Fixed consideration to be recognized as of March 31, 2024	$	379.2	$	432.4	$	2,406.1

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Supplemental Cash Flow Information (Tables)

3 Months Ended

Mar. 31, 2024

Supplemental Cash Flow Information [Abstract]

Supplemental Cash Flow Information

	Three Months Ended March 31,
	2024		2023
Cash:
Interest paid, net of capitalized interest (1)	$	268.2	$	211.6
Income taxes (received) paid, net		0.3		0.1
Non-cash investing activities:
Impact of capital expenditure accruals on property, plant and equipment, net	$	54.4	$	(21.4	)
Non-cash financing activities:
Changes in accrued distributions to noncontrolling interests	$	2.6	$	8.8

(1)Interest capitalized on major projects was $16.2 million and $6.7 million for the three months ended March 31, 2024 and 2023.

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Segment Information (Tables)

3 Months Ended

Mar. 31, 2024

Segment Reporting [Abstract]

Reportable Segment Information

Reportable segment information is shown in the following tables:

	Three Months Ended March 31, 2024
	Gathering and Processing			Logistics and Transportation		Other			Corporate and Eliminations			Total
Revenues
Sales of commodities	$	272.7		$	3,702.4	$	(22.1	)	$	—		$	3,953.0
Fees from midstream services		413.3			196.1		—			—			609.4
		686.0			3,898.5		(22.1	)		—			4,562.4
Intersegment revenues
Sales of commodities		1,130.6			46.9		—			(1,177.5	)		—
Fees from midstream services		(1.8	)		6.9		—			(5.1	)		—
		1,128.8			53.8		—			(1,182.6	)		—
Revenues	$	1,814.8		$	3,952.3	$	(22.1	)	$	(1,182.6	)	$	4,562.4
Operating margin (1)	$	556.4		$	532.1	$	(22.1	)
Other financial information:
Total assets (2)	$	12,815.6		$	7,870.1	$	3.1		$	157.3		$	20,846.1
Goodwill	$	45.2		$	—	$	—		$	—		$	45.2
Capital expenditures	$	435.0		$	293.6	$	—		$	1.1		$	729.7

	Three Months Ended March 31, 2023
	Gathering and Processing		Logistics and Transportation		Other		Corporate and Eliminations			Total
Revenues
Sales of commodities	$	287.9	$	3,561.3	$	175.8	$	—		$	4,025.0
Fees from midstream services		320.4		175.1		—		—			495.5
		608.3		3,736.4		175.8		—			4,520.5
Intersegment revenues
Sales of commodities		1,347.0		78.2		—		(1,425.2	)		—
Fees from midstream services		0.5		10.8		—		(11.3	)		—
		1,347.5		89.0		—		(1,436.5	)		—
Revenues	$	1,955.8	$	3,825.4	$	175.8	$	(1,436.5	)	$	4,520.5
Operating margin (1)	$	538.4	$	529.1	$	175.8
Other financial information:
Total assets (2)	$	12,199.9	$	6,558.4	$	4.2	$	263.0		$	19,025.5
Goodwill	$	45.2	$	—	$	—	$	—		$	45.2
Capital expenditures	$	269.5	$	176.6	$	—	$	8.2		$	454.3

(1)Operating margin is calculated by subtracting Product purchases and fuel and Operating expenses from Revenues.

(2)Assets in the Corporate and Eliminations column primarily include tax-related assets, cash, prepaids and debt issuance costs for our revolving credit facility.

Revenues Disaggregated by Product and Service

The following table shows our consolidated revenues disaggregated by product and service for the periods presented:

	Three Months Ended March 31,
	2024			2023
Sales of commodities:
Revenue recognized from contracts with customers:
Natural gas	$	494.6		$	816.1
NGL		3,356.3			2,864.5
Condensate and crude oil		137.2			121.2
		3,988.1			3,801.8
Non-customer revenue:
Derivative activities - Hedge		(3.2	)		45.2
Derivative activities - Non-hedge (1)		(31.9	)		178.0
		(35.1	)		223.2
Total sales of commodities		3,953.0			4,025.0
Fees from midstream services:
Revenue recognized from contracts with customers:
Gathering and processing		405.9			315.5
NGL transportation, fractionation and services		63.0			56.1
Storage, terminaling and export		125.7			108.8
Other		14.8			15.1
Total fees from midstream services		609.4			495.5
Total revenues	$	4,562.4		$	4,520.5

(1)Represents derivative activities that are not designated as hedging instruments under ASC 815.

Reconciliation of Reportable Segment Operating Margin to Income (Loss) Before Income Taxes

The following table shows a reconciliation of reportable segment Operating margin to Income (loss) before income taxes for the periods presented:

	Three Months Ended March 31,
	2024			2023
Reconciliation of reportable segment operating margin to income (loss) before income taxes:
Gathering and Processing operating margin	$	556.4		$	538.4
Logistics and Transportation operating margin		532.1			529.1
Other operating margin		(22.1	)		175.8
Depreciation and amortization expense		(340.5	)		(324.8	)
General and administrative expense		(86.5	)		(82.4	)
Other operating income (expense)		—			0.6
Interest expense, net		(228.6	)		(168.0	)
Equity earnings (loss)		2.8			(0.2	)
Other, net		1.7			(3.0	)
Income (loss) before income taxes	$	415.3		$	665.5

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Acquisitions - Additional Information (Details) - USD ($) $ in Millions		1 Months Ended	3 Months Ended
		Jan. 31, 2023	Mar. 31, 2023
Business Acquisition [Line Items]
Premium on repurchase of noncontrolling interests, net of tax	[1]		$ 490.7
Blackstone Energy Partners [Member]
Business Acquisition [Line Items]
Ownership interest in assets		100.00%
Ownership interest		25.00%
Business acquisition, purchase price		$ 1,050.0
Business Acquisition Purchase Price Closing Adjustment		41.9
Premium on repurchase of noncontrolling interests, net of tax		$ 490.7

[1] Represents premium paid on the Grand Prix Transaction. See Note 4 – Acquisitions.

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Property, Plant and Equipment and Intangible Assets - Property, Plant and Equipment and Intangible Assets (Details) - USD ($) $ in Millions	Mar. 31, 2024	Dec. 31, 2023
Property, Plant and Equipment [Line Items]
Property, plant and equipment	$ 26,983.9	$ 26,265.2
Accumulated depreciation, amortization and impairment	(10,701.1)	(10,458.8)
Property, plant and equipment, net	16,282.8	15,806.4
Intangible assets	4,378.0	4,378.0
Accumulated amortization and impairment	(2,120.7)	(2,027.4)
Intangible assets, net	$ 2,257.3	2,350.6
Minimum [Member]
Property, Plant and Equipment [Line Items]
Estimated useful lives	10 years
Maximum [Member]
Property, Plant and Equipment [Line Items]
Estimated useful lives	20 years
Gathering Systems [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment	$ 10,961.3	10,858.3
Gathering Systems [Member] | Minimum [Member]
Property, Plant and Equipment [Line Items]
Estimated useful lives	5 years
Gathering Systems [Member] | Maximum [Member]
Property, Plant and Equipment [Line Items]
Estimated useful lives	20 years
Processing and Fractionation Facilities [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment	$ 8,346.6	8,285.5
Processing and Fractionation Facilities [Member] | Minimum [Member]
Property, Plant and Equipment [Line Items]
Estimated useful lives	5 years
Processing and Fractionation Facilities [Member] | Maximum [Member]
Property, Plant and Equipment [Line Items]
Estimated useful lives	25 years
Terminaling and Storage Facilities [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment	$ 1,408.3	1,403.9
Terminaling and Storage Facilities [Member] | Minimum [Member]
Property, Plant and Equipment [Line Items]
Estimated useful lives	5 years
Terminaling and Storage Facilities [Member] | Maximum [Member]
Property, Plant and Equipment [Line Items]
Estimated useful lives	25 years
Transportation Assets [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment	$ 3,366.0	3,294.0
Transportation Assets [Member] | Minimum [Member]
Property, Plant and Equipment [Line Items]
Estimated useful lives	10 years
Transportation Assets [Member] | Maximum [Member]
Property, Plant and Equipment [Line Items]
Estimated useful lives	50 years
Other Property, Plant and Equipment [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment	$ 440.4	430.5
Other Property, Plant and Equipment [Member] | Minimum [Member]
Property, Plant and Equipment [Line Items]
Estimated useful lives	3 years
Other Property, Plant and Equipment [Member] | Maximum [Member]
Property, Plant and Equipment [Line Items]
Estimated useful lives	50 years
Land [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment	$ 184.7	185.0
Construction in Progress [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment	1,928.5	1,456.1
Finance Lease Right-of-Use Assets [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment	$ 348.1	$ 351.9
Finance Lease Right-of-Use Assets [Member] | Minimum [Member]
Property, Plant and Equipment [Line Items]
Estimated useful lives	5 years
Finance Lease Right-of-Use Assets [Member] | Maximum [Member]
Property, Plant and Equipment [Line Items]
Estimated useful lives	14 years

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Property, Plant and Equipment and Intangible Assets - Additional Information (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Property Plant And Equipment And Intangible Assets [Abstract]
Depreciation expense	$ 247.2	$ 228.8
Amortization	93.3	$ 96.0
Estimated amortization expense for intangible assets [Abstract]
2024	373.2
2025	326.0
2026	279.8
2027	252.2
2028	$ 234.0

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Investments in Unconsolidated Affiliates - Activity Related to Partnership's Investments in Unconsolidated Affiliates (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Schedule Of Equity Method Investments [Line Items]
Balance at beginning of period	$ 146.3
Equity earnings (loss)	2.8	$ (0.2)
Balance at end of period	$ 152.2

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Debt Obligations - Summary Of Debt Obligations (Details) - USD ($) $ in Millions		Mar. 31, 2024	Dec. 31, 2023
Current:
Finance lease liabilities		$ 46.1	$ 45.7
Current debt obligations		546.1	620.7
Long-term [Abstract]
Long-term debt including Unamortized premium(discount) and Debt issuance costs		12,364.7	12,179.9
Debt issuance costs, net of amortization		(87.8)	(90.8)
Finance lease liabilities		233.0	244.1
Long-term debt		12,509.9	12,333.2
Total debt obligations		13,056.0	12,953.9
Senior Unsecured Notes [Member]
Long-term [Abstract]
Unamortized discount		(29.7)	(29.5)
Senior Unsecured Notes [Member] | Senior Unsecured 5.200% Fixed Rate, due July 2027 [Member]
Long-term [Abstract]
Long-term debt		750.0	750.0
Senior Unsecured Notes [Member] | Senior Unsecured 6.150% Fixed Rate, due March 2029 [Member]
Long-term [Abstract]
Long-term debt		1,000.0	1,000.0
Senior Unsecured Notes [Member] | Senior Unsecured 4.200% Notes due February 2033 [Member]
Long-term [Abstract]
Long-term debt		750.0	750.0
Senior Unsecured Notes [Member] | Senior Unsecured 6.125% Fixed Rate, due March 2033 [Member]
Long-term [Abstract]
Long-term debt		900.0	900.0
Senior Unsecured Notes [Member] | Senior Unsecured 6.500% Fixed Rate, due March 2034 [Member]
Long-term [Abstract]
Long-term debt		1,000.0	1,000.0
Senior Unsecured Notes [Member] | Senior Unsecured 4.950% Notes due April 2052 [Member]
Long-term [Abstract]
Long-term debt		750.0	750.0
Senior Unsecured Notes [Member] | Senior Unsecured 6.250% fixed rate, due July 2052 [Member]
Long-term [Abstract]
Long-term debt		500.0	500.0
Senior Unsecured Notes [Member] | Senior Unsecured 6.500% Fixed Rate, due February 2053 [Member]
Long-term [Abstract]
Long-term debt		850.0	850.0
Senior Unsecured Notes [Member] | Senior Unsecured 6.500% Fixed Rate, due July 2027 [Member] | Targa Resources Partners LP [Member]
Long-term [Abstract]
Long-term debt	[1]	705.2	705.2
Senior Unsecured Notes [Member] | Senior Unsecured 5.000% Notes due January 2028 [Member] | Targa Resources Partners LP [Member]
Long-term [Abstract]
Long-term debt	[1]	700.3	700.3
Senior Unsecured Notes [Member] | Senior Unsecured of 6.875% Senior Notes due January 2029 [Member] | Targa Resources Partners LP [Member]
Long-term [Abstract]
Long-term debt	[1]	679.3	679.3
Senior Unsecured Notes [Member] | Senior Unsecured of 5.500% Senior Notes due March 2030 [Member] | Targa Resources Partners LP [Member]
Long-term [Abstract]
Long-term debt	[1]	949.6	949.6
Senior Unsecured Notes [Member] | Senior Unsecured of 4.875% Senior Notes due February 2031 [Member] | Targa Resources Partners LP [Member]
Long-term [Abstract]
Long-term debt	[1]	1,000.0	1,000.0
Senior Unsecured Notes [Member] | Senior Unsecured of 4.000% Senior Notes due January 2032 [Member] | Targa Resources Partners LP [Member]
Long-term [Abstract]
Long-term debt	[1]	1,000.0	1,000.0
Revolving Credit Facility [Member] | TRGP Senior Revolving Credit Facility due February 2027 [Member]
Long-term [Abstract]
Long-term debt	[2]	360.0	175.0
Revolving Credit Facility [Member] | TRGP Senior Revolving Credit Facility due February 2027 [Member] | Targa Resources Partners LP [Member]
Long-term [Abstract]
Letters of credit outstanding	[2]	32.5	22.3
Term Loan Facility, Variable Rate, due July 2025
Long-term [Abstract]
Long-term debt		$ 500.0	$ 500.0

[1] e guarantee all of the Partnership’s outstanding senior unsecured notes.

[2] We maintain an unsecured commercial paper note program (the “Commercial Paper Program”), the borrowings of which are supported through maintaining a minimum available borrowing capacity under our $2.75 billion TRGP senior revolving credit facility (the “TRGP Revolver”) equal to the aggregate amount outstanding under the Commercial Paper Program. As of March 31, 2024, the TRGP Revolver had no borrowings outstanding and the Commercial Paper Program had $360.0 million borrowings outstanding, resulting in approximately $2.4 billion of available liquidity, after accounting for outstanding letters of credit.

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Debt Obligations - Summary Of Debt Obligations (Parenthetical) (Details) - USD ($)		3 Months Ended		12 Months Ended
		Mar. 31, 2024	Mar. 31, 2023	Dec. 31, 2023
Debt Instrument [Line Items]
Proceeds from borrowings under accounts receivable securitization facility		$ 25,000,000	$ 0
Partnership accounts receivable securitization facility, due August 2024	[1]	$ 500,000,000		$ 575,000,000
Senior Unsecured 6.150% Fixed Rate, due March 2029 [Member]
Debt Instrument [Line Items]
Interest rate on fixed rate debt		6.15%		6.15%
Commercial Paper Program [Member]
Debt Instrument [Line Items]
Aggregate principal amount issued		$ 2,750,000,000
Accounts Receivable Securitization Facility [Member]
Debt Instrument [Line Items]
Proceeds from borrowings under accounts receivable securitization facility		500,000,000
Partnership accounts receivable securitization facility, due August 2024		600,000,000
Remaining liquidity needs		$ 100,000,000
Revolving Credit Facility [Member] | TRGP Senior Revolving Credit Facility due February 2027 [Member]
Debt Instrument [Line Items]
Maturity date		Feb. 28, 2027		Feb. 28, 2027
Remaining liquidity needs		$ 0
Revolving Credit Facility [Member] | Commercial Paper Program [Member]
Debt Instrument [Line Items]
Remaining liquidity needs		360,000,000
Revolving Credit Facility [Member] | Letter of Credit [Member]
Debt Instrument [Line Items]
Remaining liquidity needs		$ 2,400,000,000
Term Loan Facility, Variable Rate, due July 2025
Debt Instrument [Line Items]
Maturity date		Jul. 31, 2025		Jul. 31, 2025
Senior Unsecured Notes [Member] | Senior Unsecured 5.200% Fixed Rate, due July 2027 [Member]
Debt Instrument [Line Items]
Maturity date		Jul. 31, 2027		Jul. 31, 2027
Interest rate on fixed rate debt		5.20%		5.20%
Senior Unsecured Notes [Member] | Senior Unsecured 6.150% Fixed Rate, due March 2029 [Member]
Debt Instrument [Line Items]
Maturity date		Mar. 31, 2029		Mar. 31, 2029
Senior Unsecured Notes [Member] | Senior Unsecured 4.200% Notes due February 2033 [Member]
Debt Instrument [Line Items]
Maturity date		Feb. 28, 2033		Feb. 28, 2023
Interest rate on fixed rate debt		4.20%		4.20%
Senior Unsecured Notes [Member] | Senior Unsecured 6.125% Fixed Rate, due March 2033 [Member]
Debt Instrument [Line Items]
Maturity date		Mar. 31, 2033		Mar. 31, 2033
Interest rate on fixed rate debt		6.125%		6.125%
Senior Unsecured Notes [Member] | Senior Unsecured 6.500% Fixed Rate, due March 2034 [Member]
Debt Instrument [Line Items]
Maturity date		Mar. 31, 2034		Mar. 31, 2034
Interest rate on fixed rate debt		6.50%		6.50%
Senior Unsecured Notes [Member] | Senior Unsecured 4.950% Notes due April 2052 [Member]
Debt Instrument [Line Items]
Maturity date		Apr. 30, 2052		Apr. 30, 2052
Interest rate on fixed rate debt		4.95%		4.95%
Senior Unsecured Notes [Member] | Senior Unsecured 6.250% fixed rate, due July 2052 [Member]
Debt Instrument [Line Items]
Maturity date		Jul. 31, 2052		Jul. 31, 2052
Interest rate on fixed rate debt		6.25%		6.25%
Senior Unsecured Notes [Member] | Senior Unsecured 6.500% Fixed Rate, due February 2053 [Member]
Debt Instrument [Line Items]
Maturity date		Feb. 28, 2053		Feb. 28, 2053
Interest rate on fixed rate debt		6.50%		6.50%
Targa Resources Partners LP [Member] | Accounts Receivable Securitization Facility [Member] | Accounts Receivable Securitization Facility, due August 2024 [Member]
Debt Instrument [Line Items]
Maturity date		Sep. 30, 2023		Sep. 30, 2023
Targa Resources Partners LP [Member] | Senior Unsecured Notes [Member] | Senior Unsecured 6.500% Fixed Rate, due July 2027 [Member]
Debt Instrument [Line Items]
Maturity date		Jul. 31, 2027		Jul. 31, 2027
Interest rate on fixed rate debt		6.50%		6.50%
Targa Resources Partners LP [Member] | Senior Unsecured Notes [Member] | Senior Unsecured 5.000% Notes due January 2028 [Member]
Debt Instrument [Line Items]
Maturity date		Jan. 31, 2028		Jan. 31, 2028
Interest rate on fixed rate debt		5.00%		5.00%
Targa Resources Partners LP [Member] | Senior Unsecured Notes [Member] | Senior Unsecured of 6.875% Senior Notes due January 2029 [Member]
Debt Instrument [Line Items]
Maturity date		Jan. 31, 2029		Jan. 31, 2029
Interest rate on fixed rate debt		6.875%		6.875%
Targa Resources Partners LP [Member] | Senior Unsecured Notes [Member] | Senior Unsecured of 5.500% Senior Notes due March 2030 [Member]
Debt Instrument [Line Items]
Maturity date		Mar. 31, 2030		Mar. 31, 2030
Interest rate on fixed rate debt		5.50%		5.50%
Targa Resources Partners LP [Member] | Senior Unsecured Notes [Member] | Senior Unsecured of 4.875% Senior Notes due February 2031 [Member]
Debt Instrument [Line Items]
Maturity date		Feb. 28, 2031		Feb. 28, 2031
Interest rate on fixed rate debt		4.875%		4.875%
Targa Resources Partners LP [Member] | Senior Unsecured Notes [Member] | Senior Unsecured of 4.000% Senior Notes due January 2032 [Member]
Debt Instrument [Line Items]
Maturity date		Jan. 31, 2032		Jan. 31, 2032
Interest rate on fixed rate debt		4.00%		4.00%

[1] As of March 31, 2024, the Partnership had $500.0 million of qualifying receivables under its $600.0 million accounts receivable securitization facility (the “Securitization Facility”), resulting in $100.0 million of availability.

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Debt Obligations - Range of Interest Rates and Weighted Average Interest Rate Incurred on Variable Rate Debt Obligations (Details)	Mar. 31, 2024
TRGP Revolver and Commercial Paper Program [Member]
Debt Instrument [Line Items]
Weighted average interest rate incurred	6.00%
Targa Resources Partners LP [Member] | Term Loan Facility [Member]
Debt Instrument [Line Items]
Weighted average interest rate incurred	6.80%
Targa Resources Partners LP [Member] | Securitization Facility [Member]
Debt Instrument [Line Items]
Weighted average interest rate incurred	6.30%
Minimum [Member] | TRGP Revolver and Commercial Paper Program [Member]
Debt Instrument [Line Items]
Range of interest rates incurred	5.90%
Minimum [Member] | Targa Resources Partners LP [Member] | Term Loan Facility [Member]
Debt Instrument [Line Items]
Range of interest rates incurred	6.70%
Minimum [Member] | Targa Resources Partners LP [Member] | Securitization Facility [Member]
Debt Instrument [Line Items]
Range of interest rates incurred	6.30%
Maximum [Member] | TRGP Revolver and Commercial Paper Program [Member]
Debt Instrument [Line Items]
Range of interest rates incurred	6.20%
Maximum [Member] | Targa Resources Partners LP [Member] | Term Loan Facility [Member]
Debt Instrument [Line Items]
Range of interest rates incurred	6.80%
Maximum [Member] | Targa Resources Partners LP [Member] | Securitization Facility [Member]
Debt Instrument [Line Items]
Range of interest rates incurred	6.40%

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Debt Obligations - Commercial Paper Program - Additional Information (Details)	Mar. 31, 2024 USD ($)
Commercial Paper Program [Member]
Debt Instrument [Line Items]
Amount outstanding	$ 2,750,000,000

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Other Long-term Liabilities - Schedule of Other Long-term Liabilities (Details) - USD ($) $ in Millions	Mar. 31, 2024	Dec. 31, 2023
Other Liabilities, Noncurrent [Abstract]
Deferred revenue	$ 119.1	$ 248.8
Asset retirement obligations	104.6	103.0
Operating lease liabilities	76.6	56.5
Other liabilities	3.8	6.8
Total other long-term liabilities	$ 304.1	$ 415.1

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Other Long-term Liabilities - Deferred Revenue (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2024	Dec. 31, 2023
Deferred Revenue and Other [Abstract]
Deferred revenue	$ 119.1	$ 248.8
Vitol [Member]
Deferred Revenue and Other [Abstract]
Deferred revenue		$ 129.0
Reclassification to accrued liabilities	$ 129.0

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Other Long-term Liabilities - Components of Deferred Revenue (Details) - USD ($) $ in Millions	Mar. 31, 2024	Dec. 31, 2023
Deferred Revenue Arrangement [Line Items]
Total deferred revenue	$ 119.1	$ 248.8
Contributions in Aid of Construction [Member]
Deferred Revenue Arrangement [Line Items]
Total deferred revenue	86.9	86.4
Gas Contract Amendment [Member]
Deferred Revenue Arrangement [Line Items]
Total deferred revenue	29.2	29.8
Splitter Agreement [Member]
Deferred Revenue Arrangement [Line Items]
Total deferred revenue		129.0
Other Deferred Revenue [Member]
Deferred Revenue Arrangement [Line Items]
Total deferred revenue	$ 3.0	$ 3.6

XML

Other Long-term Liabilities - Changes in Deferred Revenue (Details) $ in Millions	3 Months Ended
	Mar. 31, 2024 USD ($)
Deferred Revenue Arrangement [Line Items]
Balance at December 31, 2023	$ 248.8
Additions	3.6
Revenue recognized	(4.3)
Balance at March 31, 2024	119.1
Splitter Agreement [Member]
Deferred Revenue Arrangement [Line Items]
Balance at December 31, 2023	129.0
Reclassification to accrued liabilities	$ (129.0)

XML

Common Stock and Related Matters - Additional Information (Details) - USD ($) $ / shares in Units, $ in Millions	1 Months Ended	3 Months Ended
	Apr. 30, 2024	Mar. 31, 2024	Mar. 31, 2023	May 31, 2023	Oct. 31, 2020
Securities Financing Transaction [Line Items]
Stock repurchase program, authorized amount				$ 1,000.0	$ 500.0
Repurchases of common stock (in shares)		1,186,444	724,140
Weighted average per share price		$ 104.26	$ 71.82
Repurchase of common shares, Value		$ 123.7	$ 52.0
Remaining share repurchase amount		$ 646.4
Common stock dividends, per share		$ 0.5	$ 0.35
Common stock annualized dividends, per share		$ 3
Subsequent Event [Member]
Securities Financing Transaction [Line Items]
Common stock dividends, per share	$ 0.75

XML

Common Stock and Related Matters - Dividends Declared And Or Paid (Details) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended
	Mar. 31, 2024	Dec. 31, 2023	Mar. 31, 2023
Dividends Payable [Line Items]
Dividends Declared per Share of Common Stock	$ 0.5		$ 0.35
Dividend Declared [Member]
Dividends Payable [Line Items]
Date Paid or To Be Paid	May 15, 2024	Feb. 15, 2024
Total Common Dividends Declared	$ 168.1	$ 112.8
Dividends Declared per Share of Common Stock	$ 0.75	$ 0.5
Dividend Paid [Member]
Dividends Payable [Line Items]
Amount of Common Dividends Paid or To Be Paid	$ 166.3	$ 111.6
Dividends on Share-Based Awards	$ 1.8	$ 1.2

XML

Earnings per Common Share (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions		3 Months Ended
		Mar. 31, 2024	Mar. 31, 2023
Earnings Per Share [Abstract]
Net income (loss) attributable to Targa Resources Corp.		$ 275.2	$ 497.0
Less: Premium on repurchase of noncontrolling interests, net of tax	[1]		490.7
Net income (loss) attributable to common shareholders		275.2	6.3
Less: Participating share-based earnings	[2]	2.2
Net income (loss) allocated to common shareholders for basic earnings per share		$ 273.0	$ 6.3
Weighted average shares outstanding - basic		222.8	226.4
Dilutive effect of unvested stock awards		0.9	2.9
Weighted average shares outstanding - diluted (in shares)		223.7	229.3
Net income (loss) per common share - basic		$ 1.23	$ 0.03
Net income (loss) per common share - diluted		$ 1.22	$ 0.03

[1] Represents premium paid on the Grand Prix Transaction. See Note 4 – Acquisitions.

[2] Represents the distributed and undistributed earnings of the Company attributable to the participating securities. The dilutive effect of the reallocation of participating securities to diluted net income attributable to common shareholders was immaterial.

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Earnings per Common Share - Summary of Potential Common Stock Equivalents Excluded from Determination of Diluted Earnings Per Share (Details) - shares shares in Millions	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Unvested Restricted Stock Awards [Member]
Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items]
Anti-dilutive shares excluded from the determination of diluted earnings per share (in shares)	1.1	0.1

XML

Derivative Instruments and Hedging Activities - Notional Volumes Of The Partnership's Commodity Derivative Contracts (Details) - Targa Resources Partners LP [Member]	3 Months Ended
	Mar. 31, 2024 MMBTU bbl
Swaps [Member] | Year 2024 [Member] | Natural Gas [Member]
Derivative [Line Items]
Notional volumes of commodity hedges (in MMBtu per day) | MMBTU	100,136
Swaps [Member] | Year 2024 [Member] | NGL [Member]
Derivative [Line Items]
Notional volumes of commodity hedges (in Bbl per day)	29,563
Swaps [Member] | Year 2025 [Member] | Natural Gas [Member]
Derivative [Line Items]
Notional volumes of commodity hedges (in MMBtu per day) | MMBTU	63,156
Swaps [Member] | Year 2025 [Member] | NGL [Member]
Derivative [Line Items]
Notional volumes of commodity hedges (in Bbl per day)	21,354
Swaps [Member] | Year 2026 [Member] | Natural Gas [Member]
Derivative [Line Items]
Notional volumes of commodity hedges (in MMBtu per day) | MMBTU	29,623
Swaps [Member] | Year 2026 [Member] | NGL [Member]
Derivative [Line Items]
Notional volumes of commodity hedges (in Bbl per day)	8,768
Swaps [Member] | Year 2027 [Member] | Natural Gas [Member]
Derivative [Line Items]
Notional volumes of commodity hedges (in MMBtu per day) | MMBTU	0
Swaps [Member] | Year 2027 [Member] | NGL [Member]
Derivative [Line Items]
Notional volumes of commodity hedges (in Bbl per day)	0
Basis Swaps [Member] | Year 2024 [Member] | Natural Gas [Member]
Derivative [Line Items]
Notional volumes of commodity hedges (in MMBtu per day) | MMBTU	437,909
Basis Swaps [Member] | Year 2025 [Member] | Natural Gas [Member]
Derivative [Line Items]
Notional volumes of commodity hedges (in MMBtu per day) | MMBTU	257,082
Basis Swaps [Member] | Year 2026 [Member] | Natural Gas [Member]
Derivative [Line Items]
Notional volumes of commodity hedges (in MMBtu per day) | MMBTU	152,500
Basis Swaps [Member] | Year 2027 [Member] | Natural Gas [Member]
Derivative [Line Items]
Notional volumes of commodity hedges (in MMBtu per day) | MMBTU	65,000
Future [Member] | Year 2024 [Member] | NGL [Member]
Derivative [Line Items]
Notional volumes of commodity hedges (in Bbl per day)	8,585
Future [Member] | Year 2025 [Member] | NGL [Member]
Derivative [Line Items]
Notional volumes of commodity hedges (in Bbl per day)	4,682
Future [Member] | Year 2026 [Member] | NGL [Member]
Derivative [Line Items]
Notional volumes of commodity hedges (in Bbl per day)	0
Future [Member] | Year 2027 [Member] | NGL [Member]
Derivative [Line Items]
Notional volumes of commodity hedges (in Bbl per day)	0
Options [Member] | Year 2024 [Member] | Condensate [Member]
Derivative [Line Items]
Notional volumes of commodity hedges (in Bbl per day)	4,442
Options [Member] | Year 2025 [Member] | Condensate [Member]
Derivative [Line Items]
Notional volumes of commodity hedges (in Bbl per day)	3,447
Options [Member] | Year 2026 [Member] | Condensate [Member]
Derivative [Line Items]
Notional volumes of commodity hedges (in Bbl per day)	1,881
Options [Member] | Year 2027 [Member] | Condensate [Member]
Derivative [Line Items]
Notional volumes of commodity hedges (in Bbl per day)	0

XML

Derivative Instruments and Hedging Activities, Fair Values Derivatives, Balance Sheet Location, by Derivative Contract Type (Details) - USD ($) $ in Millions	Mar. 31, 2024	Dec. 31, 2023
Derivatives, Fair Value [Line Items]
Derivative assets	$ 89.7	$ 145.2
Derivative assets	72.6	111.9
Derivative assets	17.1	33.3
Derivative liabilities	(116.6)	(70.8)
Derivative liabilities	(76.8)	(54.0)
Derivative liabilities	(39.8)	(16.8)
Designated as Hedging Instrument [Member]
Derivatives, Fair Value [Line Items]
Derivative assets	83.5	132.5
Derivative liabilities	(49.7)	(19.4)
Designated as Hedging Instrument [Member] | Commodity Contracts [Member] | Current Assets from Risk Management Activities [Member]
Derivatives, Fair Value [Line Items]
Derivative assets	67.1	103.5
Designated as Hedging Instrument [Member] | Commodity Contracts [Member] | Other Long-term Assets [Member]
Derivatives, Fair Value [Line Items]
Derivative assets	16.4	29.0
Designated as Hedging Instrument [Member] | Commodity Contracts [Member] | Current Liabilities from Risk Management Activities [Member]
Derivatives, Fair Value [Line Items]
Derivative liabilities	(36.8)	(16.4)
Designated as Hedging Instrument [Member] | Commodity Contracts [Member] | Long-term Position [Member]
Derivatives, Fair Value [Line Items]
Derivative liabilities	(12.9)	(3.0)
Not Designated as Hedging Instrument [Member]
Derivatives, Fair Value [Line Items]
Derivative assets	6.2	12.7
Derivative liabilities	(66.9)	(51.4)
Not Designated as Hedging Instrument [Member] | Commodity Contracts [Member] | Current Assets from Risk Management Activities [Member]
Derivatives, Fair Value [Line Items]
Derivative assets	5.5	8.4
Not Designated as Hedging Instrument [Member] | Commodity Contracts [Member] | Other Long-term Assets [Member]
Derivatives, Fair Value [Line Items]
Derivative assets	0.7	4.3
Not Designated as Hedging Instrument [Member] | Commodity Contracts [Member] | Current Liabilities from Risk Management Activities [Member]
Derivatives, Fair Value [Line Items]
Derivative liabilities	(40.0)	(37.6)
Not Designated as Hedging Instrument [Member] | Commodity Contracts [Member] | Long-term Position [Member]
Derivatives, Fair Value [Line Items]
Derivative liabilities	$ (26.9)	$ (13.8)

XML

Derivative Instruments and Hedging Activities - Pro Forma Impact Of Offsetting Assets (Details) - USD ($) $ in Millions	Mar. 31, 2024	Dec. 31, 2023
Derivative Asset [Abstract]
Derivative assets	$ 89.7	$ 145.2
Pro forma net presentation, asset, current	$ 25.6	$ 69.4
Derivative Asset, Current, Statement of Financial Position [Extensible Enumeration]	Assets from risk management activities	Assets from risk management activities
Pro forma net presentation, asset, noncurrent	$ 3.1	$ 18.6
Derivative Asset, Noncurrent, Statement of Financial Position [Extensible Enumeration]	Long-term assets from risk management activities	Long-term assets from risk management activities
Pro forma net presentation, asset, total	$ 28.7	$ 88.0
Counterparties with Offsetting Positions or Collateral [Member]
Derivative Asset [Abstract]
Derivative assets	89.7	143.4
Pro forma net presentation, asset, total	28.7	86.2
Counterparties without Offsetting Position [Member]
Derivative Asset [Abstract]
Derivative assets		1.8
Pro forma net presentation, asset, current		0.2
Pro forma net presentation, asset, noncurrent		1.6
Pro forma net presentation, asset, total		1.8
Current Assets from Risk Management Activities [Member]
Derivative Asset [Abstract]
Derivative assets	72.6	111.9
Current Assets from Risk Management Activities [Member] | Counterparties with Offsetting Positions or Collateral [Member]
Derivative Asset [Abstract]
Derivative assets	72.6	111.7
Pro forma net presentation, asset	25.6	69.2
Current Assets from Risk Management Activities [Member] | Counterparties without Offsetting Position [Member]
Derivative Asset [Abstract]
Derivative assets		0.2
Other Long-term Assets [Member]
Derivative Asset [Abstract]
Derivative assets	17.1	33.3
Other Long-term Assets [Member] | Counterparties with Offsetting Positions or Collateral [Member]
Derivative Asset [Abstract]
Derivative assets	17.1	31.7
Pro forma net presentation, asset	$ 3.1	17.0
Other Long-term Assets [Member] | Counterparties without Offsetting Position [Member]
Derivative Asset [Abstract]
Derivative assets		$ 1.6

XML

Derivative Instruments and Hedging Activities - Pro Forma Impact Of Offsetting Liabilities (Details) - USD ($) $ in Millions	Mar. 31, 2024	Dec. 31, 2023
Derivative Liability [Abstract]
Gross liability	$ (116.6)	$ (70.8)
Pro forma net presentation, liability, current	$ (18.3)	$ (7.9)
Derivative Liability, Current, Statement of Financial Position [Extensible Enumeration]	Derivative Liability Before Effects Of Master Netting Arrangements Current	Derivative Liability Before Effects Of Master Netting Arrangements Current
Pro forma net presentation, liability, noncurrent	$ (20.6)	$ (2.2)
Derivative Liability, Noncurrent, Statement of Financial Position [Extensible Enumeration]	Derivative Liability Before Effects Of Master Netting Arrangements Noncurrent	Derivative Liability Before Effects Of Master Netting Arrangements Noncurrent
Pro forma net presentation, liability, total	$ (38.9)	$ (10.1)
Counterparties with Offsetting Positions or Collateral [Member]
Derivative Liability [Abstract]
Gross liability	(106.5)	(70.8)
Pro forma net presentation, liability, current	(11.9)	(7.9)
Pro forma net presentation, liability, noncurrent	(16.9)	(2.2)
Pro forma net presentation, liability, total	(28.8)	(10.1)
Counterparties without Offsetting Position [Member]
Derivative Liability [Abstract]
Gross liability	(10.1)
Pro forma net presentation, liability, current	(6.4)
Pro forma net presentation, liability, noncurrent	(3.7)
Pro forma net presentation, liability, total	(10.1)
Current Liabilities from Risk Management Activities [Member]
Derivative Liability [Abstract]
Gross liability	(76.8)	(54.0)
Current Liabilities from Risk Management Activities [Member] | Counterparties with Offsetting Positions or Collateral [Member]
Derivative Liability [Abstract]
Gross liability	(70.4)	(54.0)
Current Liabilities from Risk Management Activities [Member] | Counterparties without Offsetting Position [Member]
Derivative Liability [Abstract]
Gross liability	(6.4)
Long-Term Liabilities from Risk Management Activities [Member]
Derivative Liability [Abstract]
Gross liability	(39.8)	(16.8)
Long-Term Liabilities from Risk Management Activities [Member] | Counterparties with Offsetting Positions or Collateral [Member]
Derivative Liability [Abstract]
Gross liability	(36.1)	$ (16.8)
Long-Term Liabilities from Risk Management Activities [Member] | Counterparties without Offsetting Position [Member]
Derivative Liability [Abstract]
Gross liability	$ (3.7)

XML

Derivative Instruments and Hedging Activities, Pro Forma Impact - Offsetting Collateral (Details) - USD ($) $ in Millions	Mar. 31, 2024	Dec. 31, 2023
Derivative Asset [Abstract]
Gross collateral	$ 16.7	$ 3.5
Counterparties with Offsetting Positions or Collateral [Member]
Derivative Asset [Abstract]
Gross collateral	16.7	3.5
Current Assets from Risk Management Activities [Member]
Derivative Asset [Abstract]
Gross collateral	11.5	3.6
Current Assets from Risk Management Activities [Member] | Counterparties with Offsetting Positions or Collateral [Member]
Derivative Asset [Abstract]
Gross collateral	11.5	3.6
Other Long-term Assets [Member]
Derivative Asset [Abstract]
Gross collateral	5.2	(0.1)
Other Long-term Assets [Member] | Counterparties with Offsetting Positions or Collateral [Member]
Derivative Asset [Abstract]
Gross collateral	$ 5.2	$ (0.1)

XML

Derivative Instruments and Hedging Activities - Additional Information (Details) - USD ($)	Mar. 31, 2024	Dec. 31, 2023
Derivative [Line Items]
Estimated fair value of derivative instruments, net liability	$ 26,900,000
Amount expected to reclassify commodity hedge related deferred losses to earnings before income taxes	36,400,000
Amount of deferred gains to be reclassified into earnings before income taxes over next twelve months	32,800,000
Loss contigency reduction of maximum loss due to counterparty credit risk by master netting provision	35,200,000
Derivative liability	38,900,000	$ 10,100,000
Derivative collateral amount	0
Credit Risk [Member]
Derivative [Line Items]
Derivative liability	31,100,000
Minimum [Member]
Derivative [Line Items]
Loss contigency estimate of possible loss	100,000
Maximum [Member]
Derivative [Line Items]
Loss contigency estimate of possible loss	$ 7,300,000

XML

Derivative Instruments and Hedging Activities - Amounts Included in OCI, Income and AOCI (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Derivative Instruments, Gain (Loss) [Line Items]
Gain (loss) reclassified from OCI into income (effective portion)	$ (3.2)	$ 45.2
Derivative Instrument, Gain (Loss) Reclassified from AOCI into Income, Effective Portion, Statement of Income or Comprehensive Income [Extensible Enumeration]	Total revenues	Total revenues
Commodity Contracts [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Gain (loss) recognized in OCI on derivatives (effective portion)	$ 3.2	$ (45.2)
Commodity Contracts [Member] | Revenues [Member] | Not Designated as Hedging Instrument [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Gain (loss) recognized in income on derivatives	(31.9)	178.0
Cash Flow Hedging [Member] | Commodity Contracts [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Gain (loss) recognized in OCI on derivatives (effective portion)	$ (70.3)	$ 83.9

XML

Fair Value Measurements - Additional Information (Details) $ in Millions	3 Months Ended	12 Months Ended
	Mar. 31, 2024 USD ($) Derivative	Dec. 31, 2023 Derivative
Fair Value Disclosures [Abstract]
Estimated fair value of derivative instruments, net liability	$ 26.9
Derivative fair value of net liability if commodity price increases by 10 percent	137.9
Derivative fair value of net asset if commodity price decreases by 10 percent	$ (84.2)
Derivative contract categorized as Level 3 | Derivative	0	0

XML

Fair Value Measurements - Breakdown by Fair Value Hierarchy Category for Financial Instruments (Details) - USD ($) $ in Millions		Mar. 31, 2024	Dec. 31, 2023
Financial Instruments Recorded on Our Consolidated Balance Sheets at Fair Value:
Assets from commodity derivative contracts		$ 28.7	$ 88.0
Derivative Asset, Statement of Financial Position [Extensible Enumeration]		Assets	Assets
Liabilities from commodity derivative contracts		$ 38.9	$ 10.1
Derivative Liability, Statement of Financial Position [Extensible Enumeration]		Liabilities, Current	Liabilities, Current
Carrying Value [Member]
Financial Instruments Recorded on Our Consolidated Balance Sheets at Fair Value:
Assets from commodity derivative contracts	[1]	$ 86.6	$ 144.6
Liabilities from commodity derivative contracts	[1]	113.5	70.2
Financial Instruments Recorded on Our Consolidated Balance Sheets at Carrying Value:
Cash and cash equivalents		109.9	141.7
Carrying Value [Member] | TRGP Revolver and Commercial Paper Program [Member]
Financial Instruments Recorded on Our Consolidated Balance Sheets at Carrying Value:
Long-term debt		360.0	175.0
Carrying Value [Member] | TRGP Senior Unsecured Notes [Member]
Financial Instruments Recorded on Our Consolidated Balance Sheets at Carrying Value:
Long-term debt		6,470.3	6,470.5
Carrying Value [Member] | Term Loan Facility [Member]
Financial Instruments Recorded on Our Consolidated Balance Sheets at Carrying Value:
Long-term debt		500.0	500.0
Carrying Value [Member] | Securitization Facility [Member]
Financial Instruments Recorded on Our Consolidated Balance Sheets at Carrying Value:
Long-term debt		500.0	575.0
Fair Value [Member]
Financial Instruments Recorded on Our Consolidated Balance Sheets at Fair Value:
Assets from commodity derivative contracts	[1]	86.6	144.6
Liabilities from commodity derivative contracts	[1]	113.5	70.2
Financial Instruments Recorded on Our Consolidated Balance Sheets at Carrying Value:
Cash and cash equivalents		109.9	141.7
Fair Value [Member] | Level 1 [Member]
Financial Instruments Recorded on Our Consolidated Balance Sheets at Fair Value:
Assets from commodity derivative contracts	[1]	0.0	0.0
Liabilities from commodity derivative contracts	[1]	0.0	0.0
Financial Instruments Recorded on Our Consolidated Balance Sheets at Carrying Value:
Cash and cash equivalents		0.0	0.0
Fair Value [Member] | Level 2 [Member]
Financial Instruments Recorded on Our Consolidated Balance Sheets at Fair Value:
Assets from commodity derivative contracts	[1]	86.6	144.6
Liabilities from commodity derivative contracts	[1]	113.5	70.2
Financial Instruments Recorded on Our Consolidated Balance Sheets at Carrying Value:
Cash and cash equivalents		0.0	0.0
Fair Value [Member] | Level 3 [Member]
Financial Instruments Recorded on Our Consolidated Balance Sheets at Fair Value:
Assets from commodity derivative contracts	[1]	0.0	0.0
Liabilities from commodity derivative contracts	[1]	0.0	0.0
Financial Instruments Recorded on Our Consolidated Balance Sheets at Carrying Value:
Cash and cash equivalents		0.0	0.0
Fair Value [Member] | TRGP Revolver and Commercial Paper Program [Member]
Financial Instruments Recorded on Our Consolidated Balance Sheets at Carrying Value:
Long-term debt		360.0	175.0
Fair Value [Member] | TRGP Revolver and Commercial Paper Program [Member] | Level 1 [Member]
Financial Instruments Recorded on Our Consolidated Balance Sheets at Carrying Value:
Long-term debt		0.0	0.0
Fair Value [Member] | TRGP Revolver and Commercial Paper Program [Member] | Level 2 [Member]
Financial Instruments Recorded on Our Consolidated Balance Sheets at Carrying Value:
Long-term debt		360.0	175.0
Fair Value [Member] | TRGP Revolver and Commercial Paper Program [Member] | Level 3 [Member]
Financial Instruments Recorded on Our Consolidated Balance Sheets at Carrying Value:
Long-term debt		0.0	0.0
Fair Value [Member] | TRGP Senior Unsecured Notes [Member]
Financial Instruments Recorded on Our Consolidated Balance Sheets at Carrying Value:
Long-term debt		6,555.0	6,598.7
Fair Value [Member] | TRGP Senior Unsecured Notes [Member] | Level 1 [Member]
Financial Instruments Recorded on Our Consolidated Balance Sheets at Carrying Value:
Long-term debt		0.0	0.0
Fair Value [Member] | TRGP Senior Unsecured Notes [Member] | Level 2 [Member]
Financial Instruments Recorded on Our Consolidated Balance Sheets at Carrying Value:
Long-term debt		6,555.0	6,598.7
Fair Value [Member] | TRGP Senior Unsecured Notes [Member] | Level 3 [Member]
Financial Instruments Recorded on Our Consolidated Balance Sheets at Carrying Value:
Long-term debt		0.0	0.0
Fair Value [Member] | Term Loan Facility [Member]
Financial Instruments Recorded on Our Consolidated Balance Sheets at Carrying Value:
Long-term debt		500.0	500.0
Fair Value [Member] | Term Loan Facility [Member] | Level 1 [Member]
Financial Instruments Recorded on Our Consolidated Balance Sheets at Carrying Value:
Long-term debt		0.0	0.0
Fair Value [Member] | Term Loan Facility [Member] | Level 2 [Member]
Financial Instruments Recorded on Our Consolidated Balance Sheets at Carrying Value:
Long-term debt		500.0	500.0
Fair Value [Member] | Term Loan Facility [Member] | Level 3 [Member]
Financial Instruments Recorded on Our Consolidated Balance Sheets at Carrying Value:
Long-term debt		0.0	0.0
Fair Value [Member] | Securitization Facility [Member]
Financial Instruments Recorded on Our Consolidated Balance Sheets at Carrying Value:
Long-term debt		500.0	575.0
Fair Value [Member] | Securitization Facility [Member] | Level 1 [Member]
Financial Instruments Recorded on Our Consolidated Balance Sheets at Carrying Value:
Long-term debt		0.0	0.0
Fair Value [Member] | Securitization Facility [Member] | Level 2 [Member]
Financial Instruments Recorded on Our Consolidated Balance Sheets at Carrying Value:
Long-term debt		500.0	575.0
Fair Value [Member] | Securitization Facility [Member] | Level 3 [Member]
Financial Instruments Recorded on Our Consolidated Balance Sheets at Carrying Value:
Long-term debt		0.0	0.0
Senior Unsecured Notes [Member] | Carrying Value [Member]
Financial Instruments Recorded on Our Consolidated Balance Sheets at Carrying Value:
Long-term debt		5,034.4	5,034.4
Senior Unsecured Notes [Member] | Fair Value [Member]
Financial Instruments Recorded on Our Consolidated Balance Sheets at Carrying Value:
Long-term debt		4,907.3	4,945.1
Senior Unsecured Notes [Member] | Fair Value [Member] | Level 1 [Member]
Financial Instruments Recorded on Our Consolidated Balance Sheets at Carrying Value:
Long-term debt		0.0	0.0
Senior Unsecured Notes [Member] | Fair Value [Member] | Level 2 [Member]
Financial Instruments Recorded on Our Consolidated Balance Sheets at Carrying Value:
Long-term debt		4,907.3	4,945.1
Senior Unsecured Notes [Member] | Fair Value [Member] | Level 3 [Member]
Financial Instruments Recorded on Our Consolidated Balance Sheets at Carrying Value:
Long-term debt		$ 0.0	$ 0.0

[1] The fair value of derivative contracts in this table is presented on a different basis than the Consolidated Balance Sheets presentation as disclosed in Note 10 – Derivative Instruments and Hedging Activities. The above fair values reflect the total value of each derivative contract taken as a whole, whereas the Consolidated Balance Sheets presentation is based on the individual maturity dates of estimated future settlements. As such, an individual contract could have both an asset and liability position when segregated into its current and long-term portions for Consolidated Balance Sheets classification purposes.

XML

Contingencies - Additional Information (Details) - USD ($) $ in Millions					3 Months Ended
	Oct. 26, 2023	Jul. 24, 2023	Oct. 15, 2020	Dec. 26, 2018	Mar. 31, 2024
Loss Contingencies [Line Items]
Cumulative interest on award					$ 54.9
Maximum [Member]
Loss Contingencies [Line Items]
Estimated potential loss					7.3
Minimum [Member]
Loss Contingencies [Line Items]
Estimated potential loss					0.1
Vitol [Member]
Loss Contingencies [Line Items]
Lawsuit filing date				December 26, 2018
Award date			October 15, 2020
Recovery seeking			$ 129.0	$ 129.0
Damages awarded			$ 10.5
Reclassification to accrued liabilities					129.0
New Mexico Environment Department [Member]
Loss Contingencies [Line Items]
Loss contingency amount predicted for fine or penalty		$ 0.3
Major Winter Storm [Member]
Loss Contingencies [Line Items]
Award date	October 26, 2023
Damages awarded	$ 6.9
Major Winter Storm [Member] | Maximum [Member]
Loss Contingencies [Line Items]
Estimated potential loss					10.0
Major Winter Storm [Member] | Minimum [Member]
Loss Contingencies [Line Items]
Estimated potential loss					$ 0.0

XML

Revenue - Additional Information (Details) - Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date: 2024-04-01	Mar. 31, 2024
Minimum [Member]
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Remaining duration of contracts	1 year
Maximum [Member]
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Remaining duration of contracts	15 years

XML

Revenue - Estimated Minimum Revenue Expected to be Recognized in Future Related to Unsatisfied Performance Obligations (Details) - Fixed-Price Contract [Member] $ in Millions	Mar. 31, 2024 USD ($)
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date: 2024-04-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Fixed consideration to be recognized	$ 379.2
Remaining duration of contracts	9 months
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date: 2025-01-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Fixed consideration to be recognized	$ 432.4
Remaining duration of contracts	1 year
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date: 2026-01-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Fixed consideration to be recognized	$ 2,406.1
Remaining duration of contracts	0 years

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Income Taxes - Additional Information (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023	Dec. 31, 2023
Income Tax Disclosure [Abstract]
U.S. statutory rate	21.00%	21.00%
Tax-effected valuation allowance	$ 7.1		$ 7.1

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Supplemental Cash Flow Information (Details) - USD ($) $ in Millions		3 Months Ended
		Mar. 31, 2024	Mar. 31, 2023
Cash:
Interest paid, net of capitalized interest	[1]	$ 268.2	$ 211.6
Income taxes (received) paid, net		0.3	0.1
Non-cash investing activities:
Impact of capital expenditure accruals on property, plant and equipment, net		54.4	(21.4)
Non-cash financing activities:
Changes in accrued distributions to noncontrolling interests		$ 2.6	$ 8.8

[1] Interest capitalized on major projects was $16.2 million and $6.7 million for the three months ended March 31, 2024 and 2023.

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Supplemental Cash Flow Information (Parenthetical) (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Supplemental Cash Flow Information [Abstract]
Interest capitalized on major projects	$ 16.2	$ 6.7

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Segment Information - Additional Information (Details)	3 Months Ended
	Mar. 31, 2024 Segment
Segment Reporting [Abstract]
Number of reportable segments	2

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Segment Information - Revenues and Operating Margin (Details) - USD ($) $ in Millions		3 Months Ended
		Mar. 31, 2024	Mar. 31, 2023
Revenues:
Revenues		$ 4,562.4	$ 4,520.5
Sales of Commodities [Member]
Revenues:
Revenues		3,953.0	4,025.0
Fees from Midstream Services [Member]
Revenues:
Revenues		609.4	495.5
Gathering and Processing [Member]
Revenues:
Revenues		1,814.8	1,955.8
Operating margin	[1]	556.4	538.4
Logistics and Transportation [Member]
Revenues:
Revenues		3,952.3	3,825.4
Operating margin	[1]	532.1	529.1
Other [Member]
Revenues:
Revenues		(22.1)	175.8
Operating margin	[1]	(22.1)	175.8
Corporate and Eliminations [Member]
Revenues:
Revenues		(1,182.6)	(1,436.5)
Operating Segments [Member]
Revenues:
Revenues		4,562.4	4,520.5
Operating Segments [Member] | Sales of Commodities [Member]
Revenues:
Revenues		3,953.0	4,025.0
Operating Segments [Member] | Fees from Midstream Services [Member]
Revenues:
Revenues		609.4	495.5
Operating Segments [Member] | Gathering and Processing [Member]
Revenues:
Revenues		686.0	608.3
Operating Segments [Member] | Gathering and Processing [Member] | Sales of Commodities [Member]
Revenues:
Revenues		272.7	287.9
Operating Segments [Member] | Gathering and Processing [Member] | Fees from Midstream Services [Member]
Revenues:
Revenues		413.3	320.4
Operating Segments [Member] | Logistics and Transportation [Member]
Revenues:
Revenues		3,898.5	3,736.4
Operating Segments [Member] | Logistics and Transportation [Member] | Sales of Commodities [Member]
Revenues:
Revenues		3,702.4	3,561.3
Operating Segments [Member] | Logistics and Transportation [Member] | Fees from Midstream Services [Member]
Revenues:
Revenues		196.1	175.1
Operating Segments [Member] | Other [Member]
Revenues:
Revenues		(22.1)	175.8
Operating Segments [Member] | Other [Member] | Sales of Commodities [Member]
Revenues:
Revenues		(22.1)	175.8
Intersegment Eliminations [Member] | Gathering and Processing [Member]
Revenues:
Revenues		1,128.8	1,347.5
Intersegment Eliminations [Member] | Gathering and Processing [Member] | Sales of Commodities [Member]
Revenues:
Revenues		1,130.6	1,347.0
Intersegment Eliminations [Member] | Gathering and Processing [Member] | Fees from Midstream Services [Member]
Revenues:
Revenues		(1.8)	0.5
Intersegment Eliminations [Member] | Logistics and Transportation [Member]
Revenues:
Revenues		53.8	89.0
Intersegment Eliminations [Member] | Logistics and Transportation [Member] | Sales of Commodities [Member]
Revenues:
Revenues		46.9	78.2
Intersegment Eliminations [Member] | Logistics and Transportation [Member] | Fees from Midstream Services [Member]
Revenues:
Revenues		6.9	10.8
Intersegment Eliminations [Member] | Corporate and Eliminations [Member]
Revenues:
Revenues		(1,182.6)	(1,436.5)
Intersegment Eliminations [Member] | Corporate and Eliminations [Member] | Sales of Commodities [Member]
Revenues:
Revenues		(1,177.5)	(1,425.2)
Intersegment Eliminations [Member] | Corporate and Eliminations [Member] | Fees from Midstream Services [Member]
Revenues:
Revenues		$ (5.1)	$ (11.3)

[1] Operating margin is calculated by subtracting Product purchases and fuel and Operating expenses from Revenues.

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Segment Information - Other Financial Information (Details) - USD ($) $ in Millions		3 Months Ended
		Mar. 31, 2024	Mar. 31, 2023	Dec. 31, 2023
Other financial information [Abstract]
Total assets		$ 20,846.1		$ 20,671.8
Operating Segments [Member]
Other financial information [Abstract]
Total assets	[1]	20,846.1	$ 19,025.5
Goodwill		45.2	45.2
Capital expenditures		729.7	454.3
Operating Segments [Member] | Gathering and Processing [Member]
Other financial information [Abstract]
Total assets	[1]	12,815.6	12,199.9
Goodwill		45.2	45.2
Capital expenditures		435.0	269.5
Operating Segments [Member] | Logistics and Transportation [Member]
Other financial information [Abstract]
Total assets	[1]	7,870.1	6,558.4
Capital expenditures		293.6	176.6
Operating Segments [Member] | Other [Member]
Other financial information [Abstract]
Total assets	[1]	3.1	4.2
Operating Segments [Member] | Corporate and Eliminations [Member]
Other financial information [Abstract]
Total assets	[1]	157.3	263.0
Capital expenditures		$ 1.1	$ 8.2

[1] Assets in the Corporate and Eliminations column primarily include tax-related assets, cash, prepaids and debt issuance costs for our revolving credit facility.

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Segment Information - Summary of Consolidated Revenues Disaggregated by Product and Service (Details) - USD ($) $ in Millions		3 Months Ended
		Mar. 31, 2024	Mar. 31, 2023
Revenue from External Customer [Line Items]
Revenue recognized		$ 3,988.1	$ 3,801.8
Total revenues		4,562.4	4,520.5
Derivative Activities - Hedge [Member]
Revenue from External Customer [Line Items]
Non-customer revenue		(3.2)	45.2
Derivative Activities - Non-hedge [Member]
Revenue from External Customer [Line Items]
Non-customer revenue	[1]	(31.9)	178.0
Natural Gas [Member]
Revenue from External Customer [Line Items]
Revenue recognized		494.6	816.1
NGL [Member]
Revenue from External Customer [Line Items]
Revenue recognized		3,356.3	2,864.5
Condensate and Crude Oil [Member]
Revenue from External Customer [Line Items]
Revenue recognized		137.2	121.2
Gathering and Processing [Member]
Revenue from External Customer [Line Items]
Revenue recognized		405.9	315.5
Sales of Commodities [Member]
Revenue from External Customer [Line Items]
Non-customer revenue		(35.1)	223.2
Total revenues		3,953.0	4,025.0
NGL Transportation, Fractionation and Services [Member]
Revenue from External Customer [Line Items]
Revenue recognized		63.0	56.1
Storage Terminaling and Export [Member]
Revenue from External Customer [Line Items]
Revenue recognized		125.7	108.8
Other [Member]
Revenue from External Customer [Line Items]
Revenue recognized		14.8	15.1
Fees from Midstream Services [Member]
Revenue from External Customer [Line Items]
Revenue recognized		609.4	495.5
Total revenues		$ 609.4	$ 495.5

[1] Represents derivative activities that are not designated as hedging instruments under ASC 815.

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Segment Information - Reconciliation of Reportable Segment Operating Margin to Income (Loss) Before Income Taxes (Details) - USD ($) $ in Millions		3 Months Ended
		Mar. 31, 2024	Mar. 31, 2023
Reconciliation of reportable segment operating margin to income (loss) before income taxes:
Depreciation and amortization expense		$ (340.5)	$ (324.8)
General and administrative expense		(86.5)	(82.4)
Other operating income (expense)			0.6
Interest expense, net		(228.6)	(168.0)
Equity earnings (loss)		2.8	(0.2)
Other, net		1.7	(3.0)
Income (loss) before income taxes		415.3	665.5
Gathering and Processing [Member]
Reconciliation of reportable segment operating margin to income (loss) before income taxes:
Operating margin	[1]	556.4	538.4
Logistics and Transportation [Member]
Reconciliation of reportable segment operating margin to income (loss) before income taxes:
Operating margin	[1]	532.1	529.1
Other [Member]
Reconciliation of reportable segment operating margin to income (loss) before income taxes:
Operating margin	[1]	$ (22.1)	$ 175.8

[1] Operating margin is calculated by subtracting Product purchases and fuel and Operating expenses from Revenues.