MNRL Sub (MNRL) 10-Q 6 Nov 20 2020 Q3 Quarterly report Financial data

Cover

Cover - shares	9 Months Ended
	Sep. 30, 2020	Nov. 02, 2020
Document Information [Line Items]
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Sep. 30, 2020
Document Transition Report	false
Entity File Number	001-38870
Entity Registrant Name	Brigham Minerals, Inc.
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	83-1106283
Entity Address, Address Line One	5914 W. Courtyard Drive
Entity Address, Address Line Two	Suite 200
Entity Address, City or Town	Austin
Entity Address, State or Province	TX
Entity Address, Postal Zip Code	78730
City Area Code	512
Local Phone Number	220-6350
Title of 12(b) Security	Class A common stock, par value $0.01
Trading Symbol	MNRL
Security Exchange Name	NYSE
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Non-accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	true
Entity Ex Transition Period	false
Entity Shell Company	false
Amendment Flag	false
Document Fiscal Year Focus	2020
Document Fiscal Period Focus	Q3
Entity Central Index Key	0001745797
Current Fiscal Year End Date	--12-31
Class A Common Stock
Document Information [Line Items]
Entity Common Stock, Shares Outstanding		43,315,863
Class B Common Stock
Document Information [Line Items]
Entity Common Stock, Shares Outstanding		13,167,687

Condensed Consolidated Balance

Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Sep. 30, 2020	Dec. 31, 2019
Current assets:
Cash and cash equivalents	$ 8,182	$ 51,133
Restricted cash	338	0
Accounts receivable	19,680	30,291
Prepaid expenses and other	2,464	1,688
Total current assets	30,664	83,112
Non-current assets:
Unevaluated property	318,693	291,664
Evaluated property	472,687	449,061
Less accumulated depreciation, depletion, and amortization	(116,532)	(61,103)
Total oil and gas properties, net	674,848	679,622
Other property and equipment	5,435	5,095
Less accumulated depreciation	(4,570)	(3,703)
Other property and equipment, net	865	1,392
Deferred tax asset	16,750	18,823
Other assets, net	825	1,213
Total assets	723,952	784,162
Current liabilities:
Accounts payable and accrued liabilities	7,423	11,533
Total current liabilities	7,423	11,533
Long-term bank debt	5,000	0
Other non-current liabilities	1,813	803
Temporary equity	127,182	454,507
Shareholders' equity:
Preferred stock, $0.01 par value; 50,000,000 authorized; no shares issued and outstanding at September 30, 2020 and December 31, 2019	0	0
Additional paid-in capital	633,634	323,578
Accumulated deficit	(48,011)	(6,599)
Treasury stock, at cost; 436,630 shares at September 30, 2020 and no shares at December 31, 2019	(3,527)	0
Total shareholders' equity attributable to Brigham Minerals, Inc.	582,534	317,319
Total liabilities and shareholders' equity	723,952	784,162
Class A Common Stock
Shareholders' equity:
Common stock	438	340
Class B Common Stock
Shareholders' equity:
Common stock	$ 0	$ 0

Condensed Consolidated Balanc_2

Condensed Consolidated Balance Sheets (Parenthetical) - $ / shares	Sep. 30, 2020	Dec. 31, 2019
Preferred stock, par value (in dollars per share)	$ 0.01	$ 0.01
Preferred stock, shares authorized (in shares)	50,000,000	50,000,000
Preferred stock, shares issued (in shares)	0	0
Preferred stock, shares outstanding (in shares)	0	0
Treasury stock (in shares)	436,630	0
Class A Common Stock
Common stock, par value (in dollars per share)	$ 0.01	$ 0.01
Common stock, shares authorized (in shares)	400,000,000	400,000,000
Common stock, shares issued (in shares)	43,752,493	34,040,934
Common stock, shares outstanding (in shares)	43,315,863	34,040,934
Class B Common Stock
Common stock, par value (in dollars per share)	$ 0.01	$ 0.01
Common stock, shares authorized (in shares)	150,000,000	150,000,000
Common stock, shares issued (in shares)	13,167,687	22,847,045
Common stock, shares outstanding (in shares)	13,167,687	22,847,045

Condensed Consolidated and Comb

Condensed Consolidated and Combined Statement of Operations - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
REVENUES
Total revenues	$ 23,078	$ 25,107	$ 67,963	$ 67,901
OPERATING EXPENSES
Gathering, transportation and marketing	1,702	1,113	5,106	3,750
Severance and ad valorem taxes	1,393	1,377	4,179	4,206
Depreciation, depletion, and amortization	11,801	8,434	35,827	20,310
Impairment of oil and gas properties	18,905	0	18,905	0
General and administrative	5,162	5,068	16,562	16,779
Total operating expenses	38,963	15,992	80,579	45,045
(LOSS) INCOME FROM OPERATIONS	(15,885)	9,115	(12,616)	22,856
Gain (loss) on derivative instruments, net	0	91	0	(521)
Interest expense, net	(118)	(65)	(695)	(5,160)
Loss on extinguishment of debt	0	0	0	(6,933)
Other income, net	4	130	29	165
(Loss) income before income taxes	(15,999)	9,271	(13,282)	10,407
Income tax (benefit) expense	(2,982)	807	(2,250)	1,114
NET (LOSS) INCOME	(13,017)	8,464	(11,032)	9,293
Less: net income attributable to Predecessor	0	0	0	(5,092)
Less: net loss (income) attributable to temporary equity	3,552	(5,318)	2,223	(2,377)
Net (loss) income attributable to Brigham Minerals, Inc. shareholders	$ (9,465)	$ 3,146	$ (8,809)	$ 1,824
NET (LOSS) INCOME PER COMMON SHARE
Basic (in dollars per share)	$ (0.24)	$ 0.14	$ (0.24)	$ 0.07
Diluted (in dollars per share)	$ (0.24)	$ 0.14	$ (0.24)	$ 0.07
WEIGHTED AVERAGE COMMON SHARES OUTSTANDING
Basic (in shares)	40,124	21,838	36,475	13,299
Diluted (in shares)	40,124	21,926	36,475	13,346
Mineral and royalty revenues
REVENUES
Total revenues	$ 21,568	$ 24,135	$ 62,485	$ 64,774
Lease bonus and other revenues
REVENUES
Total revenues	$ 1,510	$ 972	$ 5,478	$ 3,127

Condensed Consolidated and Co_2

Condensed Consolidated and Combined Statement of Changes in Shareholders' and Members' Equity - USD ($) $ in Thousands	Total	Members' Contributed Capital	Additional Paid-in Capital	Accumulated Deficit	Treasury Stock	Class A Common Stock	Class A Common StockCommon Stock	Class B Common Stock	Class B Common StockCommon Stock
Beginning balance (in shares) at Dec. 31, 2018							0		0
Beginning balance at Dec. 31, 2018	$ 373,948		$ (3,057)	$ 168,277			$ 0		$ 0
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income attributable to shareholders	534			534
Ending balance (in shares) at Mar. 31, 2019							0		0
Ending balance at Mar. 31, 2019	377,984		(3,057)	172,313			$ 0		$ 0
Beginning balance at Dec. 31, 2018		$ 208,728
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income attributable to predecessor	3,502			3,502
Ending balance at Mar. 31, 2019		208,728
Beginning balance (in shares) at Dec. 31, 2018							0		0
Beginning balance at Dec. 31, 2018	373,948		(3,057)	168,277			$ 0		$ 0
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income attributable to shareholders	1,824
Ending balance (in shares) at Sep. 30, 2019							21,997,000		28,778,000
Ending balance at Sep. 30, 2019	59,478		63,203	(3,945)			$ 220		$ 0
Beginning balance at Dec. 31, 2018		208,728
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income attributable to predecessor	5,092
Ending balance at Sep. 30, 2019		0
Beginning balance (in shares) at Mar. 31, 2019							0		0
Beginning balance at Mar. 31, 2019	377,984		(3,057)	172,313			$ 0		$ 0
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income attributable to shareholders	314			314
Ending balance (in shares) at Apr. 16, 2019							0		0
Ending balance at Apr. 16, 2019	379,888		(3,057)	174,217			$ 0		$ 0
Beginning balance at Mar. 31, 2019		208,728
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income attributable to predecessor	1,590			1,590
Ending balance at Apr. 16, 2019		208,728
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Share-based compensation	7,505		7,505
Net income attributable to shareholders	(2,170)			(2,170)
Adjustment of temporary equity to carrying and redemption value	(97,344)		(97,344)
Ending balance (in shares) at Jun. 30, 2019							21,997,000		28,778,000
Ending balance at Jun. 30, 2019	58,456		57,719	517			$ 220		$ 0
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Conversion of PE Units for Class A Common Stock and Class B Common Stock	0	(208,728)	380,205	(171,530)			$ 53
Conversion of PE Units for Class A Common Stock and Class B Common Stock (in shares)							5,322,000		28,778,000
Issuance of common stock in IPO, net of offering costs (in shares)							16,675,000
Issuance of common stock	274,913		274,746				$ 167
Deferred tax asset arising from the IPO	13,664		13,664
Reclassification of noncontrolling interests to temporary equity	(518,000)		(518,000)
Ending balance at Jun. 30, 2019		0
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Share-based compensation	3,152		3,152
Dividends declared	(7,206)			(7,206)
Dividend equivalent rights declared	(402)			(402)
Net income attributable to shareholders	3,146			3,146
Adjustment of temporary equity to carrying and redemption value	3,797		3,797
Ending balance (in shares) at Sep. 30, 2019							21,997,000		28,778,000
Ending balance at Sep. 30, 2019	59,478		63,203	(3,945)			$ 220		$ 0
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income attributable to predecessor	0
Issuance of common stock	(1,465)		(1,465)
Ending balance at Sep. 30, 2019		$ 0
Beginning balance (in shares) at Dec. 31, 2019					0	34,040,934	34,041,000	22,847,045	22,847,000
Beginning balance at Dec. 31, 2019	317,319		323,578	(6,599)	$ 0		$ 340		$ 0
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Shares surrendered for tax withholdings on vested equity awards							(7,000)
Conversion of shares of Class B Common Stock to Class A Common Stock (in shares)							140,000		(140,000)
Conversion of shares of Class B Common Stock to Class A Common Stock	1,526		1,524				$ 2
Deferred tax asset arising from conversion of shares of Class B Common Stock to Class A Common Stock	204		204
Share-based compensation	3,402		3,402
Dividends declared	(12,945)			(12,945)
Dividend equivalent rights declared	(596)			(596)
Net income attributable to shareholders	4,706			4,706
Adjustment of temporary equity to carrying and redemption value	206,017		206,017
Ending balance (in shares) at Mar. 31, 2020					0		34,174,000		22,707,000
Ending balance at Mar. 31, 2020	519,633		534,725	(15,434)	$ 0		$ 342		$ 0
Beginning balance (in shares) at Dec. 31, 2019					0	34,040,934	34,041,000	22,847,045	22,847,000
Beginning balance at Dec. 31, 2019	317,319		323,578	(6,599)	$ 0		$ 340		$ 0
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income attributable to shareholders	(8,809)
Ending balance (in shares) at Sep. 30, 2020					437,000	43,315,863	43,316,000	13,167,687	13,168,000
Ending balance at Sep. 30, 2020	582,534		633,634	(48,011)	$ (3,527)		$ 438		$ 0
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income attributable to predecessor	0
Beginning balance (in shares) at Mar. 31, 2020					0		34,174,000		22,707,000
Beginning balance at Mar. 31, 2020	519,633		534,725	(15,434)	$ 0		$ 342		$ 0
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Shares surrendered for tax withholdings on vested equity awards							(11,000)
Shares surrendered for tax withholdings on vested equity awards	(185)		(185)
Conversion of shares of Class B Common Stock to Class A Common Stock (in shares)							5,094,000		(5,094,000)
Conversion of shares of Class B Common Stock to Class A Common Stock	51,569		51,518				$ 51
Deferred tax asset arising from conversion of shares of Class B Common Stock to Class A Common Stock	(780)		(780)
Share-based compensation (in shares)							50,000
Share-based compensation	3,332		3,332
Restricted stock forfeited (in shares)							(9,000)
Dividends declared	(12,710)			(12,710)
Dividend equivalent rights declared	(562)			(562)
Net income attributable to shareholders	(4,050)			(4,050)
Adjustment of temporary equity to carrying and redemption value	(37,445)		(37,445)
Ending balance (in shares) at Jun. 30, 2020					0		39,298,000		17,613,000
Ending balance at Jun. 30, 2020	518,802		551,165	(32,756)	$ 0		$ 393		$ 0
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Conversion of shares of Class B Common Stock to Class A Common Stock (in shares)							4,445,000		(4,445,000)
Conversion of shares of Class B Common Stock to Class A Common Stock	44,396		44,351				$ 45
Deferred tax asset arising from conversion of shares of Class B Common Stock to Class A Common Stock	(2,845)		(2,845)
Purchase of treasury stock (in shares)					437,000		(437,000)
Purchase of treasury stock	(3,527)				$ (3,527)
Share-based compensation (in shares)							10,000
Share-based compensation	3,518		3,518
Dividends declared	(5,567)			(5,567)
Dividend equivalent rights declared	(223)			(223)
Net income attributable to shareholders	(9,465)			(9,465)
Adjustment of temporary equity to carrying and redemption value	37,445		37,445
Ending balance (in shares) at Sep. 30, 2020					437,000	43,315,863	43,316,000	13,167,687	13,168,000
Ending balance at Sep. 30, 2020	582,534		$ 633,634	$ (48,011)	$ (3,527)		$ 438		$ 0
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income attributable to predecessor	$ 0

Condensed Consolidated and Co_3

Condensed Consolidated and Combined Statement of Cash Flows - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019
Cash flows from operating activities
Net income attributable to shareholders	$ (11,032)	$ 9,293
Adjustments to reconcile net earnings to net cash provided by operating activities:
Depreciation, depletion and amortization	35,827	20,310
Impairment of oil and gas properties	18,905	0
Share-based compensation expense	5,692	8,232
Loss on extinguishment of debt	0	6,933
Amortization of debt issuance costs	545	354
Deferred income taxes	(1,351)	2
Loss on derivative instruments, net	0	521
Net cash received for derivative settlements	0	356
Bad debt expense	299	293
Changes in operating assets and liabilities:
Decrease (increase) in accounts receivables	10,312	(2,612)
(Increase) decrease in other current assets	(776)	970
Decrease in other deferred charges	45	0
(Decrease) increase in accounts payables and accrued liabilities	(4,269)	1,827
(Decrease) increase in other long-term liabilities	(465)	46
Net cash provided by operating activities	53,732	46,525
CASH FLOWS FROM INVESTING ACTIVITIES
Additions to oil and gas properties	(45,996)	(181,484)
Additions to other fixed assets	(340)	(400)
Proceeds from sale of oil and gas properties, net	1,565	2,001
Net cash used in investing activities	(44,771)	(179,883)
CASH FLOWS FROM FINANCING ACTIVITIES
Payments of short-term debt	0	(4,596)
Payments of long-term debt	0	(195,404)
Borrowing of long-term debt	5,000	70,000
Payment of debt extinguishment fees	0	(2,091)
Proceeds from issuance of Class A common stock	0	277,075
Purchase of treasury stock	(3,527)	0
Dividends paid	(31,340)	(7,206)
Distribution to holders of temporary equity	(21,504)	(9,379)
Debt issuance costs	(203)	(1,211)
Net cash (used in) provided by financing activities	(51,574)	127,188
Decrease in cash and cash equivalents and restricted cash	(42,613)	(6,170)
Cash and cash equivalents and restricted cash, beginning of period	51,133	32,018
Cash and cash equivalents and restricted cash, end of period	8,520	25,848
Supplemental disclosure of noncash activity:
Accrued capital expenditures	163	286
Capitalized share-based compensation cost	4,560	2,425
Temporary equity cumulative adjustment to redemption value	(206,017)	93,546
Supplemental cash flow information:
Cash payments for loan commitment fees and interest	570	5,657
Cash taxes paid	$ 113	$ 1,014

Business and Basis of Presentat

Business and Basis of Presentation	9 Months Ended
	Sep. 30, 2020
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Business and Basis of Presentation	Business and Basis of Presentation Description of the Business Brigham Minerals, Inc. (together with its wholly owned subsidiaries, “Brigham Minerals” or the “Company”) is a Delaware corporation formed in June 2018 to become a holding company. Brigham Minerals acquired an indirect interest in Brigham Resources, LLC (“Brigham Resources”), our predecessor, on July 16, 2018 in a series of restructuring transactions pursuant to which certain entities affiliated with Warburg Pincus LLC (“Warburg Pincus”) contributed all of their respective interests in the entities through which they held interests in Brigham Resources to Brigham Minerals in exchange for all of the outstanding shares of common stock of Brigham Minerals (the “July 2018 Restructuring”). As a result of such restructuring transactions, Brigham Minerals became wholly owned by an entity affiliated with Warburg Pincus, and Brigham Minerals indirectly owned a 16.5% membership interest in Brigham Resources. The remaining outstanding membership interests of Brigham Resources remained with certain other entities affiliated with Warburg Pincus, Yorktown Partners LLC and Pine Brook Road Advisors, LP, Brigham Minerals’ management and its other investors (collectively, the “Original Owners”). On November 20, 2018, Brigham Resources underwent a second series of restructuring transactions (the “November 2018 Restructuring”). In the November 2018 Restructuring, Brigham Resources became a wholly owned subsidiary of Brigham Minerals Holdings, LLC (“Brigham LLC”), which was a wholly owned subsidiary of Brigham Equity Holdings, LLC (“Brigham Equity Holdings”), and Brigham Equity Holdings became wholly owned by the owners of Brigham Resources immediately prior to such restructuring, directly or indirectly, through Brigham Minerals. As a result of the foregoing transactions, there was no change in the control or economic interests of the Original Owners and Brigham Minerals in Brigham Resources, although their ownership became indirect through Brigham Equity Holdings and its wholly owned subsidiary, Brigham LLC. The July 2018 Restructuring and the November 2018 Restructuring are collectively referred to herein as the “2018 corporate reorganizations.” Brigham Resources wholly owns Brigham Minerals, LLC and Rearden Minerals, LLC (collectively, the “Minerals Subsidiaries”), which acquire and actively manage a portfolio of mineral and royalty interests. The Minerals Subsidiaries are Brigham Resources’ sole material assets. Initial Public Offering In April 2019, Brigham Minerals completed the initial public offering (the "IPO") of 16,675,000 shares of Class A common stock at a price to the public of $18.00 per share. This resulted in net proceeds of approximately $273.4 million, after deducting underwriting commissions and discounts and offering expenses, which proceeds were used to repay $200.0 million of existing indebtedness and to fund mineral and royalty acquisitions. As a result of the IPO and the corporate restructuring described in "Note 10—Temporary Equity", Brigham Minerals became a holding company whose sole material asset consisted of a 43.3% interest in Brigham LLC, which wholly owns Brigham Resources. Brigham Resources continues to wholly own the Minerals Subsidiaries, which own all of Brigham Resources’ operating assets. In connection with the IPO, Brigham Minerals became the sole managing member of Brigham LLC and is responsible for all operational, management and administrative decisions relating to Brigham LLC’s business and consolidates the financial results of Brigham LLC and its wholly owned subsidiary, Brigham Resources. December 2019 Offering On December 16, 2019, Brigham Minerals completed an offering of 12,650,000 shares of its Class A common stock (the "December 2019 Offering"), including 6,000,000 shares issued and sold by Brigham Minerals and an aggregate of 6,650,000 shares sold by certain shareholders of the Company (the "Selling Shareholders"), of which 5,496,813 represents shares issued upon redemption of an equivalent number of their common units in Brigham LLC (the "Brigham LLC Units") (together with a corresponding number of shares of Class B common stock in Brigham Minerals), at a price to the public of $18.10 per share ($17.376 per share net of underwriting discounts and commissions). After deducting underwriting discounts, commissions and offering expenses, Brigham Minerals received net proceeds of approximately $102.7 million which were used to repay $80.0 million of existing indebtedness and to fund future mineral and royalty acquisitions. Brigham Minerals did not receive any proceeds from the sale of shares of Class A common stock by the Selling Shareholders. June 2020 Secondary Offering On June 12, 2020, Brigham Minerals completed an offering of 6,600,000 shares of its Class A common stock (the "June 2020 Secondary Offering"), all of which were sold by certain shareholders of the Company (the “June 2020 Selling Shareholders”), and 4,872,669 of which represented shares issued upon redemption of an equivalent number of the June 2020 Selling Shareholders’ Brigham LLC Units (together with a corresponding number of shares of Class B common stock in Brigham Minerals), at a price to the public of $13.75 per share. Brigham Minerals did not sell any shares of its common stock in the June 2020 Secondary Offering and did not receive any proceeds pursuant to the June 2020 Secondary Offering. September 2020 Secondary Offering On September 15, 2020, Brigham Minerals completed an offering of 5,021,140 shares of its Class A common stock, including 654,931 shares issued pursuant to the option granted to the underwriter to purchase additional shares to cover over-allotments (the "September 2020 Secondary Offering"), all of which were sold by certain shareholders of the Company (the "September 2020 Selling Shareholders"), and 3,062,011 of which represented shares issued upon redemption of an equivalent number of the September 2020 Selling Shareholders’ Brigham LLC Units (together with a corresponding number of shares of Class B common stock in Brigham Minerals), at a price to the public of $8.20 per share. Brigham Minerals did not sell any shares of its Class A common stock in the September 2020 Secondary Offering and did not receive any proceeds pursuant to the September 2020 Secondary Offering. In addition, in connection with the September 2020 Secondary Offering, Brigham Minerals repurchased 436,630 shares of its Class A common stock from the September 2020 Selling Shareholders in a privately negotiated transaction at a price equal to the price per share at which the underwriter purchased shares from the September 2020 Selling Shareholders in the September 2020 Secondary Offering (and Brigham LLC redeemed a corresponding number of Brigham LLC Units held by Brigham Minerals). The repurchased shares are presented in the Company's condensed consolidated balance sheet as Treasury Stock, at cost. Following the completion of the September 2020 Secondary Offering and as of September 30, 2020, Brigham Minerals owned a 76.7% interest in Brigham LLC and the Original Owners owned 23.3% of the outstanding voting stock of Brigham Minerals. Certain other entities affiliated with Yorktown Partners LLC and Pine Brook Road Advisors, LP, which are a subset of the Company's Original Owners, collectively owned 17.0% of the outstanding voting stock of Brigham Minerals as of September 30, 2020. Basis of Presentation Subsequent to the July 2018 Restructuring and prior to the IPO, Brigham Minerals used the equity method of accounting for its investment in Brigham Resources, its predecessor, because its 16.5% ownership in Brigham Resources provided Brigham Minerals with significant influence, but not with a controlling financial interest or the ability to direct the most significant activities of Brigham Resources. Upon the completion of the IPO, Brigham Minerals indirectly owned an approximate 43.3% interest of Brigham Resources and 100% of the voting rights and consolidated the results of operations of Brigham Resources. In order to furnish comparative financial information, the accompanying consolidated and combined financial statements and related notes of Brigham Minerals for periods prior to the IPO, including the 2019 amounts presented, have been retrospectively recast to include the combined historical financial information of both Brigham Resources (at historical carrying values) and Brigham Minerals, taking into account state and federal income taxes and liabilities associated with Brigham Minerals. All intercompany transactions between Brigham Minerals and Brigham Resources have been eliminated. Because Brigham Minerals acquired an interest in Brigham Resources as part of certain reorganization transactions in 2018, net income is attributable to stockholders of Brigham Minerals in addition to its predecessor beginning in 2018. The accompanying unaudited condensed, consolidated and combined interim financial statements of Brigham Minerals have been prepared in accordance with accounting principles generally accepted in the United States of America (“GAAP”), except that, in accordance with the instructions to Form 10-Q, they do not include all of the notes required for financial statements prepared in conformity with U.S. GAAP. Accordingly, the accompanying unaudited interim financial statements should be read in conjunction with our audited financial statements included in our Annual Report on Form 10-K filed with the Securities and Exchange Commission (the "SEC") on February 28, 2020 (the "Annual Report"). The unaudited interim financial statements reflect all normal recurring adjustments that, in the opinion of management, are necessary for a fair representation. The results of operations for the three and nine months ended September 30, 2020 are not necessarily indicative of the results to be expected for the entire fiscal year ending December 31, 2020. Brigham Minerals operates in one segment: oil and natural gas exploration and production.

Summary of Significant Accounti

Summary of Significant Accounting Policies	9 Months Ended
	Sep. 30, 2020
Accounting Policies [Abstract]
Summary of Significant Accounting Policies	Summary of Significant Accounting Policies Use of Estimates These condensed, consolidated and combined financial statements and related notes are presented in accordance with GAAP. Preparation in accordance with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets, liabilities, revenues and expenses and the disclosure of contingent assets and liabilities in the condensed consolidated and combined financial statements and accompanying notes. Although management believes these estimates are reasonable, actual results could differ from these estimates. Changes in estimates are recorded prospectively. The accompanying condensed, consolidated and combined financial statements are based on a number of significant estimates including quantities of oil, natural gas and NGL reserves that are the basis for the calculations of depreciation, depletion, amortization (“DD&A”) and impairment of oil and natural gas properties. Reservoir engineering is a subjective process of estimating underground accumulations of oil and natural gas and there are numerous uncertainties inherent in estimating quantities of proved oil and natural gas reserves. The accuracy of any reserve estimate is a function of the quality of available data and of engineering and geological interpretation and judgment. As a result, reserve estimates may differ from the quantities of oil and natural gas that are ultimately recovered. Brigham Minerals’ year-end reserve estimates are audited by Cawley, Gillespie & Associates, Inc. (“CG&A”), an independent petroleum engineering firm. Quarterly reserve estimates are internally generated by our in-house engineering staff. Other items subject to significant estimates and assumptions include the carrying amount of oil and natural gas properties, valuation of derivative instruments, share-based compensation costs, and revenue accruals. Significant Accounting Policies Significant accounting policies are disclosed in Brigham Minerals' audited consolidated and combined financial statements and notes for the year ended December 31, 2019, presented in the Annual Report. There have been no changes in such policies or the application of such policies during the three and nine months ended September 30, 2020. Recently Adopted Accounting Standards Restricted cash includes cash that is contractually restricted for its use through an agreement with a non-related party. On December 31, 2019, the Company adopted ASU 2016-18, Statement of Cash Flows, which amends ASC 230 to add or clarify guidance on the classification and presentation of restricted cash in the statement of cash flows. The ASU requires entities to show the changes in the total of cash, cash equivalents, restricted cash and restricted cash equivalents in the statement of cash flows. As a result, entities will no longer present transfers between cash and cash equivalents and restricted cash and restricted cash equivalents in the statement of cash flows. The adoption resulted in a decrease in reported investing cash flow of $33,000 for the nine months ended September 30, 2019. The September 30, 2019 accompanying statement of cash flow that was adjusted as a result of adoption of ASU 2016-18 is summarized below: Nine Months Ended September 30, 2019 (In thousands) As reported As adjusted Changes in restricted cash held in escrow for acquisitions $ 33 $ — Net cash used in investing activities $ (179,850) $ (179,883) Decrease in cash, cash equivalents and restricted cash (6,137) (6,170) Cash, cash equivalents and restricted cash, beginning of period $ 31,985 $ 32,018 Accounts Receivables As of September 30, 2020 and December 31, 2019, accounts receivables was comprised of the following: (In thousands) September 30, 2020 December 31, 2019 Accounts receivables Oil and gas sales $ 17,727 $ 27,888 Reserve for bad debt (855) (556) Other 2,808 2,959 Total accounts receivables $ 19,680 $ 30,291 Concentration of Credit Risk and Significant Customers Financial instruments that potentially subject Brigham Minerals to concentrations of credit risk consist of cash, accounts receivable, commodity derivative financial instruments and its revolving credit facility. Cash and cash equivalents are held in a few financial institutions in amounts that may, at times, exceed federally insured limits. However, no losses have been incurred and management believes that counterparty risks are minimal based on the reputation and history of the institutions selected. Accounts receivable are concentrated among operators and purchasers engaged in the energy industry within the United States. Management periodically assesses the financial condition of these entities and institutions and considers any possible credit risk to be minimal. Concentrations of oil and gas sales to significant customers (operators) are presented in the table below. Three Months Ended September 30, Nine Months Ended September 30, Customer (Operator) Name 2020 2019 2020 2019 Continental Resources Inc 12 % 12 % 9 % 10 % Occidental Petroleum Corp 11 % 14 % 13 % 18 % Exxon Mobil Corp 10 % 15 % 9 % 8 % Royal Dutch Shell PLC 9 % 1 % 13 % 1 % Management does not believe that the loss of any customer would have a long-term material adverse effect on our financial position or the results of operations. For the three and nine months ended September 30, 2020, we received revenues from over 150 operators with approximately 63% of revenues for both periods coming from the top ten operators on our properties. Recently Issued Accounting Standards Not Yet Adopted Brigham Minerals’ status as an emerging growth company under Section 107 of the Jumpstart Our Business Startups Act of 2012 permits it to delay the adoption of certain accounting standards until those standards would otherwise apply to private companies. Brigham Minerals is choosing to take advantage of this extended transition period and, as a result, Brigham Minerals will comply with new or revised accounting standards on the relevant dates on which adoption of such standards is required for private companies. In February 2016, Financial Accounting Standards Board (the "FASB") issued ASU 2016-02, Leases, which requires all leasing arrangements to be presented in the balance sheet as liabilities along with a corresponding asset. ASU 2016-02 does not apply to leases of mineral rights to explore for or use crude oil and natural gas. The ASU will replace most existing lease guidance in GAAP when it becomes effective. In January 2018, the FASB issued ASU 2018-01, Land Easement Practical Expedient for Transition to Topic 842, to provide an optional practical expedient to not evaluate existing or expired land easements that were not previously accounted for as leases under Topic 840. In July 2018, the FASB issued ASU 2018-11 Leases (Topic 842): Targeted Improvements, which provides for another transition method, in addition to the existing transition method, by allowing entities to initially apply the new leases standard at the adoption date and recognize a cumulative-effect adjustment to the opening balance of retained earnings in the period of adoption (i.e. comparative periods presented in the financial statements will continue to be in accordance with current GAAP (Topic 840, Leases)). The new standard becomes effective for us during the fiscal year ending December 31, 2022 and interim periods within the fiscal year ending December 31, 2023 and early adoption is permitted. We are currently evaluating the impact that the adoption of this update will have on our condensed consolidated and combined financial statements and related disclosures.

Oil and Gas Properties

Oil and Gas Properties	9 Months Ended
	Sep. 30, 2020
Extractive Industries [Abstract]
Oil and Gas Properties	Oil and Gas Properties Brigham Minerals uses the full cost method of accounting for its oil and natural gas properties. Under this method, all acquisition costs incurred for the purpose of acquiring mineral and royalty interests, including certain internal costs, are capitalized into a full cost pool. Costs associated with general corporate activities are expensed in the period incurred. Oil and gas properties as of the dates shown consisted of the following: (In thousands) September 30, 2020 December 31, 2019 Oil and gas properties, at cost, using the full cost method of accounting: Unevaluated property $ 318,693 $ 291,664 Evaluated property 472,687 449,061 Total oil and gas properties, at cost 791,380 740,725 Less accumulated depreciation, depletion, and amortization (116,532) (61,103) Total oil and gas properties, net $ 674,848 $ 679,622 Capitalized costs are depleted on a unit of production basis based on proved oil and natural gas reserves. Depletion expense was $11.6 million and $8.3 million for the three months ended September 30, 2020 and 2019, respectively, and $35.0 million and $19.9 million for the nine months ended September 30, 2020 and 2019, respectively. Average depletion of proved properties was $13.58 per Boe and $11.49 per Boe for the three months ended September 30, 2020 and 2019, respectively, and $13.40 per Boe and $10.91 per Boe for the nine months ended September 30, 2020 and 2019, respectively. The costs associated with unevaluated properties primarily consist of acquisition costs and capitalized general and administrative costs. Under the full cost method of accounting, Brigham Minerals capitalizes certain overhead expenses and other internal costs attributable to the acquisition of mineral and royalty interests as part of its investment in oil and gas properties over the periods benefitted by these activities. Capitalized costs do not include any costs related to general corporate overhead or similar activities. Capitalized costs were $2.6 million and $2.3 million for the three months ended September 30, 2020 and 2019, respectively, and $7.6 million and $5.0 million for the nine months ended September 30, 2020 and 2019, respectively. Under the full cost method of accounting, total capitalized costs of oil and natural gas properties, net of accumulated depletion, may not exceed an amount equal to the present value of future net revenues from proved reserves, discounted at 10% per annum ("PV-10"), plus the cost of unevaluated properties (full cost ceiling limitation). A write-down of the carrying value of the full cost pool ("impairment charge") is a noncash charge that reduces earnings and impacts equity in the period of occurrence and typically results in lower depletion expense in future periods. A ceiling limitation is calculated at each reporting period. The ceiling limitation calculation is prepared using unweighted arithmetic average of oil price ("SEC oil price") and natural gas price ("SEC gas price") as of the first day of each month for the trailing 12-month period ended September 30, 2020, as required under the guidelines established by the SEC. As of September 30, 2020, the SEC oil price and SEC gas price used in the calculation of the ceiling test was $43.55 per barrel of oil and $1.98 per MMbtu of natural gas, respectively. Using these prices, the net book value of oil and natural gas properties exceeded the ceiling limitation resulting in an impairment charge of $18.9 million to oil and gas properties, net during the three and nine months ended September 30, 2020. There was no impairment charge during the three and nine months ended September 30, 2019. Based on the decline subsequent to September 30, 2020 in the unweighted arithmetic average SEC oil prices used in the full cost ceiling test, an additional impairment charge may be necessary in the fourth quarter of 2020 and such amount could be material. In addition to the impact of lower prices, any changes in the fourth quarter of 2020 to assumptions of drilling and completion activity, development timing, acquisitions or divestitures of oil and gas properties, proved undeveloped locations, and production and other estimates may require revisions to estimates of total proved reserves which would impact the amount of any impairment charge. During the three months ended September 30, 2020, Brigham Minerals reduced its proved undeveloped reserves by 228 Mboe primarily due to conversion from proved undeveloped reserves to proved developed reserves within the quarter as well as the 8% reduction in SEC oil pricing over the quarter. During the nine months ended September 30, 2020, Brigham Minerals reduced its proved undeveloped reserves by 5,279 Mboe primarily as a result of a 22% reduction in SEC oil prices over the period, conversion from proved undeveloped reserves to proved developed reserves and a decrease in rig activity. The reduction in rig activity led to changes in the development timing and a reduction of the number of proved undeveloped locations that Brigham Minerals expects will be developed within five years after the date of booking.

Acquisitions and Divestitures

Acquisitions and Divestitures	9 Months Ended
	Sep. 30, 2020
Business Combinations [Abstract]
Acquisitions and Divestitures	Acquisitions and Divestitures During the nine months ended September 30, 2020 and 2019, Brigham Minerals entered into a number of acquisitions of mineral and royalty interests from various sellers in Texas, Oklahoma, Colorado, New Mexico, and North Dakota, as reflected in the tables below. The change in the oil and natural gas property balance is comprised of payments for acquisitions of minerals, land brokerage costs and capitalized general and administrative expenses that for the nine months ended September 30, 2020 were funded with proceeds from the December 2019 Offering and our revolving credit facility (as defined below). The changes in the oil and natural gas property balance for the nine months ended September 30, 2019 were funded with proceeds from the Owl Rock credit facility (as defined below), our revolving credit facility, and the IPO. Oil and Gas Properties Acquired Cash Consideration Paid (In thousands) Evaluated Unevaluated Quarter Ended March 31, 2020 $ 9,471 $ 15,947 $ 25,418 Quarter Ended June 30, 2020 805 2,493 3,298 Quarter Ended September 30, 2020 6,881 10,499 17,380 Total $ 17,157 $ 28,939 $ 46,096 Oil and Gas Properties Acquired Cash Consideration Paid (In thousands) Evaluated Unevaluated Quarter Ended March 31, 2019 $ 27,929 $ 13,403 $ 41,332 Quarter Ended June 30, 2019 25,050 14,925 39,975 Quarter Ended September 30, 2019 63,787 35,251 99,038 Total $ 116,766 $ 63,579 $ 180,345

Revenue from contracts with cus

Revenue from contracts with customers	9 Months Ended
	Sep. 30, 2020
Revenue from Contract with Customer [Abstract]
Revenue from contracts with customers	Revenue from contracts with customers Contract Balances Oil, natural gas and NGLs sales revenues are recognized when control of the product is transferred to the customer, the performance obligations under the terms of the contracts with customers are satisfied and collectability is reasonably assured. Lease bonus and other revenues are recognized when the lease agreement has been executed, payment has been received, and the Company has no further obligation to refund the payment. Accordingly, the Company’s contracts do not give rise to contract assets or liabilities. As of September 30, 2020, accounts receivable from oil and gas sales of $17.7 million represent rights to payment for which Brigham Minerals has satisfied its obligations under contracts with customers. Prior-period performance obligations As a non-operator, Brigham Minerals has limited visibility into the timing of when new wells start producing and is required to estimate the amount of production delivered to the purchaser and the price that will be received for the sale of the product. The amount of production delivered to the purchaser is estimated on the basis of state-reported production data or production statements from operators. The difference between the Company’s estimates and the actual amounts received for oil and natural gas sales is recorded in the month that payment is received from the third party. For the three and nine months ended September 30, 2020 and 2019, revenue recognized in the reporting periods related to performance obligations satisfied in prior reporting periods was immaterial. Allocation of transaction price to remaining performance obligations

Derivative Instruments

Derivative Instruments	9 Months Ended
	Sep. 30, 2020
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Derivative Instruments	Derivative Instruments Brigham Minerals periodically uses commodity derivative instruments to reduce its exposure to commodity price volatility for a portion of its forecasted crude oil and natural gas sales and thereby achieve a more predictable level of cash flows. None of the derivative instruments are designated as hedges. Brigham Minerals does not enter into derivative instruments for speculative or trading purposes. Because the counterparties to Brigham Minerals derivative instruments have investment grade credit ratings, Brigham Minerals believes it does not have significant credit risk and does not anticipate nonperformance from its counterparties. Brigham Minerals continually monitors the credit ratings of its counterparties. Concurrent with the termination of its prior revolving credit facility in July 2018, Brigham Resources posted cash collateral of $1.4 million for its existing WTI fixed price swap contracts. The cash collateral was $1.6 million in May 2019 prior to the termination of the Owl Rock credit facility and was returned to Brigham Resources upon entering into the revolving credit facility. See "Note 8—Long-Term Debt." Brigham Minerals had no derivative contracts in place as of September 30, 2020 and December 31, 2019. Prior to December 31, 2019, we had certain oil swap contracts based on the NYMEX futures index. The following table summarizes Brigham Minerals' gain (loss) on derivative instruments, net on its condensed consolidated and combined statement of operations for the three and nine months ended September 30, 2020 and 2019: Three Months Ended September 30, Nine Months Ended September 30, (In thousands) 2020 2019 2020 2019 Realized gain $ — $ 119 $ — $ 356 Unrealized gain (loss) — (28) — (877) Combined - realized/unrealized gain (loss) $ — $ 91 $ — $ (521)

Fair Value Measurements

Fair Value Measurements	9 Months Ended
	Sep. 30, 2020
Fair Value Disclosures [Abstract]
Fair Value Measurements	Fair Value MeasurementsWe classify financial assets and liabilities that are measured and reported at fair value on a recurring basis using a hierarchy based on the inputs used in measuring fair value. GAAP defines fair value as the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date (exit price). We classify the inputs used to measure fair value into the following hierarchy: • Level 1: Inputs based on quoted market prices in active markets for identical assets or liabilities at the measurement date. • Level 2: Inputs based on quoted prices for similar assets or liabilities in active markets, quoted prices for identical or similar assets and liabilities in markets that are not active or other inputs that are observable and can be corroborated by observable market data. • Level 3: Inputs that reflect management’s best estimates and assumptions of what market participants would use in pricing the asset or liability at the measurement date. The inputs are unobservable in the market and significant to the valuation of the instruments. Changes in economic conditions or model-based valuation techniques may require the transfer of financial instruments from one fair value level to another. In such instances, the transfer would be reported at the beginning of the period in which the change occurs. Assets and Liabilities Measured at Fair Value on a Recurring Basis We had no financial assets and liabilities that were accounted for at fair value on a recurring basis at September 30, 2020 and December 31, 2019. Brigham Minerals had no derivative contracts in place as of September 30, 2020 and December 31, 2019 as disclosed in "Note 6—Derivative Instruments." Commodity derivative instruments are valued using a third-party industry-standard pricing model using contract terms and prices and assumptions and inputs that are substantially observable in active markets throughout the full term of the instruments, including forward oil and gas price curves, discount rates and volatility factors. The fair values are also compared to the values provided by the counterparties for reasonableness and are adjusted for the counterparties’ credit quality for derivative assets and our credit quality for derivative liabilities. As such, these derivative contracts are classified within Level 2. Brigham Minerals had no transfers into or out of Level 1 and no transfers into or out of Level 2 for the nine months ended September 30, 2020 and September 30, 2019. Assets and Liabilities Measured at Fair Value on a Non-Recurring Basis Certain non-financial assets and liabilities, such as assets and liabilities acquired in a business combination, are measured at fair value on a nonrecurring basis on the acquisition date and are subject to fair value adjustments under certain circumstances. The inputs used to determine such fair value are primarily based upon internally developed cash flow models and include factors such as estimates of economic reserves, future commodity prices and a risk-adjusted discount rates, and are classified within Level 3. Fair Value of Other Financial Instruments

Long-Term Debt

Long-Term Debt	9 Months Ended
	Sep. 30, 2020
Debt Disclosure [Abstract]
Long-Term Debt	Long-Term Debt Owl Rock Credit Facility On July 27, 2018, Brigham Resources entered into a credit facility (the “Owl Rock credit facility”) with Owl Rock Capital Corporation as administrative agent and collateral agent. Brigham Resources used the proceeds from the Owl Rock credit facility to repay the outstanding $70 million of principal under its prior revolving credit facility and to fund mineral and royalty acquisitions. The Owl Rock credit facility was subject to customary fees, guarantees of subsidiaries, restrictions and covenants, including certain restricted payments, and was collateralized by certain oil and natural gas properties of Brigham Resources. The Owl Rock credit facility provided for a $125 million initial term loan, a $75 million delayed draw term loan and a $10 million revolving credit facility, bore interest at a rate per annum equal to, at Brigham Resources’ option, (a) the base rate plus 4.50%, or (b) the adjusted LIBOR rate for such interest period (subject to a 1.00% floor) plus 5.50%, matured on July 27, 2024 and required Brigham Resources to maintain compliance with certain financial and collateral coverage ratios. On May 7, 2019, the Owl Rock credit facility was terminated and the outstanding balance of $200.0 million was fully repaid using the proceeds generated from the IPO. As a result of the debt repayment, Brigham Minerals recognized a loss on extinguishment of debt of $6.9 million, which consisted of a $4.0 million write-off of capitalized debt issuance costs, a $2.1 million prepayment fee and legal fees of $0.8 million. Revolving Credit Facility On May 16, 2019 Brigham Resources entered into a credit agreement with Wells Fargo Bank, N.A., as administrative agent for the various lenders from time to time party thereto, providing for a revolving credit facility (our “revolving credit facility”). Our revolving credit facility is guaranteed by Brigham Resources’ domestic subsidiaries and is collateralized by a lien on substantially all of Brigham Resources and its domestic subsidiaries’ assets, including substantially all of their respective royalty and mineral properties. Availability under our revolving credit facility is governed by a borrowing base, which is subject to redetermination semi-annually in May and November of each year. In addition, lenders holding two-thirds of the aggregate commitments may request one additional redetermination each year. Brigham Resources can also request one additional redetermination each year, and such other redeterminations as appropriate when significant acquisition opportunities arise. The borrowing base is subject to further adjustments for asset dispositions, material title deficiencies, certain terminations of hedge agreements and issuances of permitted additional indebtedness. Increases to the borrowing base require unanimous approval of the lenders, while decreases only require approval of lenders holding two-thirds of the aggregate commitments at such time. We fully repaid the $80.0 million of outstanding borrowings under our revolving credit facility in December 2019 using a portion of the net proceeds from the December 2019 Offering. As of September 30, 2020, the borrowing base on our revolving credit facility was $135.0 million, with outstanding borrowings of $5.0 million, resulting in $130.0 million availability for future borrowings. Our revolving credit facility bears interest at a rate per annum equal to, at our option, the adjusted base rate or the adjusted LIBOR rate plus an applicable margin. The applicable margin is based on utilization of our revolving credit facility and ranges from (a) in the case of adjusted base rate loans, 0.750% to 1.750% and (b) in the case of adjusted LIBOR rate loans, 1.750% to 2.750%. Brigham Resources may elect an interest period of one two three six twelve Our revolving credit facility matures on May 16, 2024. Loans drawn under our revolving credit facility may be prepaid at any time without premium or penalty (other than customary LIBOR breakage) and must be prepaid in the event that exposure exceeds the lesser of the borrowing base and the elected availability at such time. The principal amount of loans that are prepaid are required to be accompanied by accrued and unpaid interest and fees on such amounts. Loans that are prepaid may be reborrowed. In addition, Brigham Resources may permanently reduce or terminate in full the commitments under our revolving credit facility prior to maturity. Any excess exposure resulting from such permanent reduction or termination must be prepaid. Upon the occurrence of an event of default under our revolving credit facility, the administrative agent acting at the direction of the lenders holding a majority of the aggregate commitments at such time may accelerate outstanding loans and terminate all commitments under our revolving credit facility, provided that such acceleration and termination occurs automatically upon the occurrence of a bankruptcy or insolvency event of default. Our revolving credit facility contains customary affirmative and negative covenants, including, without limitation, reporting obligations, restrictions on asset sales, restrictions on additional debt and lien incurrence and restrictions on making distributions (subject only to no default or borrowing base deficiency) and investments. In addition, our revolving credit facility requires us to maintain (a) a current ratio of not less than 1.00 to 1.00 and (b) a ratio of total net funded debt to consolidated EBITDA of not more than 4.00 to 1.00. As of September 30, 2020, we were in compliance with all covenants in accordance with our revolving credit facility.

Shareholders' Equity

Shareholders' Equity	9 Months Ended
	Sep. 30, 2020
Equity [Abstract]
Shareholders' Equity	Shareholders' Equity Class A Common Stock Brigham Minerals had approximately 43.3 million shares of its Class A common stock outstanding as of September 30, 2020. Holders of Class A common stock are entitled to one vote per share on all matters to be voted upon by the stockholders and are entitled to ratably receive dividends when and if declared by the Company’s board of directors. Upon liquidation, dissolution, distribution of assets or other winding up, the holders of Class A common stock are entitled to receive ratably the assets available for distribution to the stockholders after payment of liabilities. Class B Common Stock Brigham Minerals had approximately 13.2 million shares of its Class B common stock outstanding as of September 30, 2020. Holders of the Class B common stock are entitled to one vote per share on all matters to be voted upon by the stockholders. Holders of Class A common stock and Class B common stock generally vote together as a single class on all matters presented to Brigham Minerals’ stockholders for their vote or approval. Holders of Class B common stock do not have any right to receive dividends or distributions upon a liquidation or winding up of Brigham Minerals. Treasury Stock Brigham Minerals repurchased 436,630 shares of its Class A common stock from the September 2020 Selling Shareholders at a price of $8.08 per share (and Brigham LLC redeemed a corresponding number of Brigham LLC Units held by Brigham Minerals). See "Note 1—Business and Basis of Presentation." As of September 30, 2020, there were 436,630 shares of Class A common stock held in treasury. Earnings per Share Basic earnings per share (“EPS”) measures the performance of an entity over the reporting period. Diluted earnings per share measures the performance of an entity over the reporting period while giving effect to all potentially dilutive common shares that were outstanding during the period. Brigham Minerals uses the “if-converted” method to determine the potential dilutive effect of exchanges of outstanding shares of Class B common stock (and corresponding Brigham LLC Units), and the treasury stock method to determine the potential dilutive effect of vesting of its outstanding RSAs, RSUs, PSUs and unvested Incentive Units (each as defined in "Note 11—Share-Based Compensation"). Brigham Minerals does not use the two-class method because the Class B common stock and the unvested share-based awards are nonparticipating securities. For the three and nine months ended September 30, 2020, the Incentive Units, RSUs, RSAs, and shares of Class B common stock were not recognized in dilutive EPS calculations as the effects would have been antidilutive. For the three and nine months ended September 30, 2019, the Incentive Units and shares of Class B common stock were not recognized in dilutive EPS calculations as the effect would have been antidilutive. For the nine months ended September 30, 2019, the RSAs were not recognized in dilutive EPS calculations as the effect would have been antidilutive. As of September 30, 2020, there were 1,187,811 shares related to PSUs (based on target), that could vest in the future dependent on predetermined performance goals. These units were not included in the computation of EPS for the three and nine months ended September 30, 2020, because the performance goals had not been met, assuming the end of the reporting period was the end of the contingency period. For the nine months ended September 30, 2019, Brigham Minerals' EPS calculation includes only its share of net income for the period subsequent to the IPO, and omits income or loss prior to the IPO. In addition, the basic weighted average shares outstanding calculation is based on the actual days in which the shares were outstanding from the IPO through September 30, 2019. The following table reflects the allocation of net income to common shareholders and EPS computations for the period indicated based on a weighted average number of common stock outstanding for the period: Three Months Ended September 30, Nine Months Ended September 30, (In thousands, except per share data) 2020 2019 2020 2019 Basic EPS Numerator: Basic net (loss) income attributable to Brigham Minerals, Inc. shareholders $ (9,465) $ 3,146 $ (8,809) $ 1,824 Less: net income attributable to Brigham Minerals, Inc. shareholders pre-IPO — — — (848) Basic net (loss) income attributable to Brigham Minerals, Inc. shareholders post-IPO $ (9,465) $ 3,146 $ (8,809) $ 976 Denominator: Basic weighted average shares outstanding 40,124 21,838 36,475 13,299 Basic EPS attributable to Brigham Minerals, Inc. shareholders $ (0.24) $ 0.14 $ (0.24) $ 0.07 Diluted EPS Numerator: Basic net (loss) income attributable to Brigham Minerals, Inc. shareholders $ (9,465) $ 3,146 $ (8,809) $ 976 Effects of dilutive securities: Effect of time-based restricted stock awards — — — — Diluted net (loss) income attributable to Brigham Minerals, Inc. shareholders $ (9,465) $ 3,146 $ (8,809) $ 976 Denominator: Basic weighted average shares outstanding 40,124 21,838 36,475 13,299 Effects of dilutive securities: Time-based restricted stock awards — 88 — 47 Diluted weighted average shares outstanding 40,124 21,926 36,475 13,346 Diluted EPS attributable to Brigham Minerals, Inc. shareholders $ (0.24) $ 0.14 $ (0.24) $ 0.07

Temporary Equity

Temporary Equity	9 Months Ended
	Sep. 30, 2020
Temporary Equity Disclosure [Abstract]
Temporary Equity	Temporary Equity Temporary equity represents the Original Owners' 23.3% ownership of Brigham LLC, as of September 30, 2020. Each share of Class B common stock does not have any economic rights but entitles its holder to one vote on all matters to be voted on by our stockholders generally, and holders of Brigham LLC Units (and Class B common stock) have a redemption right into shares of Class A common stock. As discussed below, following the IPO: • Each holder of Brigham LLC Units (each a "Brigham Unit Holder") other than Brigham Minerals and its subsidiaries, received a number of shares of Class B common stock equal to the number of Brigham LLC Units held by such Brigham Unit Holder following the IPO; • Brigham Minerals contributed, directly or indirectly, the net proceeds of the IPO to Brigham LLC in exchange for an additional number of Brigham LLC Units such that Brigham Minerals held, directly or indirectly, a total number of Brigham LLC Units equal to the number of shares of Class A common stock outstanding following the IPO; and • Under the Amended and Restated Limited Liability Company Agreement of Brigham LLC (the "Brigham LLC Agreement"), each Brigham Unit Holder, subject to certain limitations, has a right (the "Redemption Right") to cause Brigham LLC to acquire all or a portion of its Brigham LLC Units for, at Brigham LLC’s election, (i) shares of our Class A common stock at a redemption ratio of one share of Class A common stock for each Brigham LLC Unit redeemed, subject to conversion rate adjustments for stock splits, stock dividends and reclassification and other similar transactions or (ii) an equivalent amount of cash. We will determine whether to issue shares of Class A common stock or cash based on facts in existence at the time of the decision, which we expect would include the relative value of the Class A common stock (including trading prices for the Class A common stock at the time), the cash purchase price, the availability of other sources of liquidity (such as an issuance of preferred stock) to acquire the Brigham LLC Units and alternative uses for such cash. Alternatively, upon the exercise of the Redemption Right, Brigham Minerals (instead of Brigham LLC) will have a call right to, for administrative convenience, acquire each tendered Brigham LLC Unit directly from the redeeming Brigham Unit Holder for, at its election, (x) one share of Class A common stock or (y) an equivalent amount of cash (the "Call Right"). The decision to make a cash payment upon a Brigham Unit Holder's exercise of its Redemption Right is required to be made by the Company's directors who are independent under Section 10A-3 of the Securities Act and do not hold any Brigham LLC Units subject to such redemption. In connection with any redemption of Brigham LLC Units pursuant to the Redemption Right or acquisition pursuant to our Call Right, the corresponding number of shares of Class B common stock will be cancelled. Class B common stock is classified as temporary equity in the condensed consolidated balance sheet as, pursuant to the Brigham LLC Agreement, the Redemption Rights of each Brigham Unit Holder for either shares of Class A common stock or an equivalent amount of cash is not solely within Brigham Minerals' control. This is due to the fact that the holders of Class B common stock control a majority of the votes of the board of directors through direct representation on the board of directors, which allows the holders of Class B common stock to control the determination of whether to make a cash payment upon a Brigham Unit Holder's exercise of its Redemption Right. Temporary equity is recorded at the greater of the carrying value or redemption amount with a corresponding adjustment to additional paid-in capital. At March 31, 2020, the redemption amount was lower than its carrying value and as a result, the cumulative adjustment of temporary equity to redemption amount was reversed and temporary equity was presented at its carrying value. At June 30, 2020, temporary equity was adjusted to redemption value based on 17,612,638 shares of Class B common stock outstanding and Class A common stock 10-day volume-weighted average closing price of $12.16. This was subsequently reversed at September 30, 2020 because the redemption amount was lower than its carrying value, and as a result, temporary equity was presented at its carrying value. For the nine months ended September 30, 2020, the Company recorded adjustments to the value of temporary equity as presented in the table below: (In thousands) Temporary Equity Adjustments Balance - December 31, 2019 (1) $ 454,507 Conversion of Class B common stock to Class A common stock (1,526) Net income attributable to temporary equity 4,095 Distribution to holders of temporary equity (10,240) Adjustment of temporary equity to carrying value (2) (206,017) Balance - March 31, 2020 $ 240,819 Conversion of Class B common stock to Class A common stock (51,569) Net loss attributable to temporary equity (2,766) Distribution to holders of temporary equity (9,783) Adjustment of temporary equity to redemption value (3) 37,445 Balance - June 30, 2020 $ 214,146 Conversion of Class B common stock to Class A common stock (44,396) Net loss attributable to temporary equity (3,552) Distribution to holders of temporary equity (1,571) Adjustment of temporary equity to carrying value (4) (37,445) Balance - September 30, 2020 $ 127,182 (1) Based on 22,847,045 shares of Class B common stock outstanding and Class A common stock 10-day volume-weighted average closing price of $19.89 at December 31, 2019. (2) In connection with the IPO, the balance transferred from additional paid-in capital to temporary equity was the greater of redemption value or carrying value of the shares of Class B common stock at IPO and included an initial upward adjustment to redemption amount totaling $194.5 million. The redemption amount was lower than the carrying value as of March 31, 2020, and as such, Brigham Minerals adjusted temporary equity to equal carrying value. (3) Based on 17,612,638 shares of Class B common stock outstanding and Class A common stock 10-day volume-weighted average closing price of $12.16 at June 30, 2020. (4) The redemption amount was lower than the carrying value as of September 30, 2020, and as such, Brigham Minerals adjusted temporary equity to equal carrying value.

Share-Based Compensation

Share-Based Compensation	9 Months Ended
	Sep. 30, 2020
Share-based Payment Arrangement [Abstract]
Stock-Based Compensation	Share-Based Compensation LLC Incentive Units As part of the Second Amended and Restated Limited Liability Company Agreement of Brigham Resources, LLC dated May 8, 2015, Brigham Resources authorized 120,000 restricted incentive units for issuance to management, independent directors, employees, and consultants (such incentive units, as converted as described below, the "Incentive Units”). Brigham Resources granted Incentive Units in April 2013 and September 2015 and 2018. In connection with the 2018 corporate reorganizations and the corporate reorganization consummated in connection with Brigham Minerals' IPO (collectively with the 2018 corporate reorganizations, the "corporate reorganization"), these Incentive Units were converted into units in Brigham Equity Holdings, LLC with equivalent rights, responsibilities, and preferences. The Incentive Units are subject to vesting as follows: 20% of the Incentive Units were vested on the date of grant and 20% of the Incentive Units vest on each anniversary of the date of grant if the holder remains continuously employed by Brigham Resources or its affiliates through the applicable vesting date. In connection with our IPO, holders of Incentive Units that were vested at such time received one share of Brigham Minerals' Class B common stock and one Brigham LLC Unit for each vested Incentive Unit. Upon vesting of the Incentive Units following the IPO, holders of the Incentive Units will receive one share of Brigham Minerals' Class B common stock and one Brigham LLC Unit for each vested Incentive Unit. In connection with the completion of the IPO, Brigham LLC and Brigham Equity Holdings discontinued granting new Incentive Units; however Brigham Equity Holdings will continue to administer the existing awards that remain outstanding until they are fully vested. As discussed in "Note 10—Temporary Equity," participants may receive one share of Brigham Minerals' Class A common stock in exchange for one share of Class B common stock and one Brigham LLC Unit, or cash at the option of Brigham Minerals. Brigham Minerals accounts for the Incentive Units as compensation cost measured at the fair value of the award on the date of grant. No compensation expense was recognized prior to the IPO because the IPO was not considered probable. A summary of Incentive Unit activity for the nine months ended September 30, 2020 is as follows: Incentive Units Number of Incentive Units Grant-date Fair Value Outstanding—January 1, 2020 212,733 $ 10.04 Vested 70,911 $ 10.04 Outstanding—September 30, 2020 141,822 $ 10.04 Brigham LLC used the Black-Scholes option pricing valuation model to assist management in its estimation of the grant-date fair value of the Incentive Units on the respective grant dates during 2013, 2015 and 2018. Long Term Incentive Plan In connection with the IPO, Brigham Minerals adopted the Brigham Minerals, Inc. 2019 Long Term Incentive Plan (“LTIP”) for employees, consultants and directors who perform services for Brigham Minerals. The LTIP provides for issuance of awards based on shares of Class A common stock. Brigham Minerals has issued restricted stock awards ("RSAs"), restricted stock units subject to time-based vesting ("RSUs") and restricted stock units subject to performance-based vesting ("PSUs") under the LTIP. The shares to be delivered under the LTIP shall be made available from (i) authorized but unissued shares, (ii) shares held as treasury stock or (iii) previously issued shares reacquired by Brigham Minerals including shares purchased on the open market. A total of 5,999,600 shares of Class A common stock have been authorized for issuance under the LTIP. At September 30, 2020, 3,466,893 shares of Class A common stock remained available for future grants. Currently, all RSAs, RSUs and PSUs granted under the LTIP are entitled to receive dividends (in the case of RSAs) or have dividend equivalent rights (“DERs”), which entitle holders of RSUs and PSUs to the same dividend value per share as holders of the Company's Class A common stock. Such dividends and DERs are subject to the same vesting and other terms and conditions as the corresponding unvested RSAs, RSUs, and PSUs. Dividends and DERs are accumulated and paid when the underlying shares vest. The fair value of the RSA awards granted with the right to receive dividends and RSU awards granted with the right to receive DERs are generally based on the trading price of the Company’s Class A common stock as of the date of grant. Brigham Minerals accounts for the awards granted under the LTIP as compensation cost measured at the fair value of the award on the date of grant. Brigham Minerals accounts for forfeitures as they occur. RSAs are grants of shares of Class A common stock subject to a risk of forfeiture and restrictions on transferability. The share-based compensation expense of such RSAs was determined using the closing price of Class A common stock on April 23, 2019, the date of grant, of $21.25. On April 23, 2019, 312,189 RSAs were granted and 152,742 RSAs vested immediately. During the three months ended March 31, 2020, the compensation committee of the Board of Directors of Brigham Minerals approved the accelerated vesting of 30,174 RSAs for certain employees who retired in February 2020. For the nine months ended September 30, 2020, the Company remitted $0.2 million in respect of the employee portion of applicable payroll tax withholding associated with vested RSAs which was satisfied through the surrender of 18,651 RSAs, both of which are presented as an adjustment to additional paid-in-capital and Class A common stock, respectively, included in the Company's condensed consolidated and combined statement of changes in shareholders' and members' equity included within this Quarterly Report. The remaining unvested RSAs generally vest in one-third increments on each of April 23, 2021 and 2022 and are subject to restrictions on transfer and are generally subject to a risk of forfeiture if the award recipient ceases providing services to Brigham Minerals prior to the lapse of such restrictions. The following table summarizes activity related to RSAs for the nine months ended September 30, 2020. Restricted Stock Awards Number of RSAs Grant Date Fair Value Unvested at January 1, 2020 148,456 $ 21.25 Vested (69,601) $ 21.25 Forfeited (9,390) $ 21.25 Unvested at September 30, 2020 69,465 $ 21.25 RSUs represent the right to receive shares of Class A common stock at the end of the vesting period in an amount equal to the number of RSUs that vest. The RSUs generally vest in one-third increments over a three-year period and are subject to restrictions on transfer and are generally subject to a risk of forfeiture if the award recipient ceases providing services to Brigham Minerals prior to the date the award vests. The share-based compensation cost of such RSUs was determined using the closing price on the applicable date of grant, which is then applied to the total number of RSUs granted. During the three months ended September 30, 2020, the compensation committee of the Board of Directors of Brigham Minerals approved the accelerated vesting of 10,598 RSUs for certain board members who resigned in September 2020. The following table summarizes activity related to RSUs for the nine months ended September 30, 2020. Restricted Stock Units Number of RSUs Weighted-Average Grant Date Fair Value Unvested at January 1, 2020 415,815 $ 21.25 Granted 544,045 $ 16.52 Vested (60,242) $ 19.84 Forfeited (12,086) $ 20.82 Unvested at September 30, 2020 887,532 $ 18.45 The Company has granted PSUs to certain officers and managers, which vest based on continuous employment and satisfaction of a performance metric based on the absolute total shareholder return of the Company’s common stock, including paid dividends, over an approximate three-year performance period. The terms and conditions of the PSUs allow for vesting of the awards ranging between 0% (or forfeiture) and 200% of target. Expense related to these PSUs is recognized on a straight-line basis over the length of the applicable performance period. All compensation cost related to the market-based awards will be recognized if the requisite service period is fulfilled, even if the market condition is not achieved. The grant date fair value of such PSUs was determined using a Monte Carlo simulation model that utilizes multiple input variables that determine the probability of satisfying the market condition stipulated in the award to calculate the fair value of the award. Expected volatilities in the model were estimated on the basis of historical volatility of a group of publicly traded oil and gas companies with a performance period of approximately three years. The risk-free interest rate was based on the United States Treasury rate for a term commensurate with the expected life of the grant. The following table summarizes activity related to PSUs for the nine months ended September 30, 2020. In addition, no PSUs became vested or were forfeited during the nine months ended September 30, 2020: Performance-Based Restricted Stock Units Target PSUs Estimated Earned PSUs Grant Date Fair Value Unvested at January 1, 2020 753,546 450,836 $ 20.36 Granted 434,265 174,106 $ 15.98 Unvested at September 30, 2020 1,187,811 624,942 $ 19.14 Share-Based Compensation Expense Share-based compensation expense is included in general and administrative expense in the Company's condensed consolidated and combined statement of operations included within this Quarterly Report. Share-based compensation expense recorded for each type of share-based compensation award for the three and nine months ended September 30, 2020 and 2019 is summarized in the table below. No share-based compensation expense was incurred prior to the IPO. Three Months Ended September 30, Nine Months Ended September 30, (In thousands) 2020 2019 2020 2019 Incentive Units (1) (4) $ 178 $ 559 $ 534 $ 2,726 RSAs (1) (5) 186 285 1,076 3,741 RSUs (1) 2,052 1,686 5,486 2,932 PSUs (2) 1,102 622 3,156 1,258 Capitalized share-based compensation (3) (1,562) (1,415) (4,560) (2,425) Total share-based compensation expense $ 1,956 $ 1,737 $ 5,692 $ 8,232 (1) Share-based compensation expense relating to Incentive Units, RSAs and RSUs with ratable vesting is recognized on a straight-line basis over the requisite service period for the entire award. (2) Share-based compensation expense relating to PSUs with cliff-vesting is recognized on a straight-line basis over the performance period for the entire award. (3) During the three and nine months ended September 30, 2020, Brigham Minerals capitalized $0.8 million and $2.6 million, respectively, of share-based compensation cost to unevaluated property and $0.7 million and $1.9 million, respectively, of share-based compensation cost to evaluated property. (4) Includes $2.0 million recorded at IPO. No compensation expense was recorded prior to the IPO because the IPO was not considered probable. (5) Includes $3.2 million recorded at grant date, associated with 152,742 RSAs, which vested immediately. Future Share-Based Compensation Expense The following table reflects the future share-based compensation expense expected to be recorded for the share-based compensation awards that were outstanding at September 30, 2020, a portion of which will be capitalized: (In thousands) Incentive Units RSAs RSUs PSUs Total Year 2020 $ 178 $ 186 $ 1,925 $ 1,103 $ 3,392 2021 712 738 6,770 4,374 12,594 2022 534 228 2,662 966 4,390 Total $ 1,424 $ 1,152 $ 11,357 $ 6,443 $ 20,376

Income Taxes

Income Taxes	9 Months Ended
	Sep. 30, 2020
Income Tax Disclosure [Abstract]
Income Taxes	Income Taxes The Company computes its quarterly taxes under the effective tax rate method based on applying an anticipated annual effective rate to its year-to-date income, except for discrete items. Income taxes for discrete items are computed and recorded in the period that the specific transaction occurs. Income tax expense was as follows for the periods indicated: Three Months Ended September 30, Nine Months Ended September 30, (In thousands, except for tax rate) 2020 2019 2020 2019 Income tax (benefit) expense $ (2,982) $ 807 $ (2,250) $ 1,114 Effective tax rate 18.6 % 8.7 % 16.9 % 10.7 % Total income tax expense for the three and nine months ended September 30, 2020 and 2019 differed from amounts computed by applying the U.S. federal statutory tax rate of 21% due to the impact of the temporary equity, net income attributable to predecessor, state taxes (net of the anticipated federal benefit), and percentage depletion in excess of basis. The effective tax rate for the three and nine months ended September 30, 2019 reflects the Company’s indirect 16.5% interest in Brigham Resources as a result of the 2018 corporate reorganizations. The effective tax rate for the three and nine months ended September 30, 2020 reflects the Company’s 76.7% ownership interest in Brigham LLC as a result of the IPO, the corporate reorganization, all subsequent primary and secondary equity offerings and redemptions of Brigham LLC Units and shares of Class B common stock for shares of Class A common stock completed subsequent to the IPO and prior to September 30, 2020.

Commitments and Contingencies

Commitments and Contingencies	9 Months Ended
	Sep. 30, 2020
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies	Commitments and Contingencies Commitments Brigham Minerals leases office space under operating leases. Rent expense for the three months ended September 30, 2020 and 2019 was $0.3 million and $0.2 million, respectively. Rent expense for the nine months ended September 30, 2020 and 2019 was $0.8 million and $0.4 million, respectively. Future minimum lease commitments under noncancelable operating leases at September 30, 2020 are presented below: (In thousands) Commitment Year 2020 (remainder of) $ 321 2021 1,345 2022 1,419 2023 1,498 2024 1,581 Thereafter 4,445 Total $ 10,609 Contingencies Brigham Minerals may, from time to time, be a party to certain lawsuits and claims arising in the ordinary course of business. The outcome of such lawsuits and claims cannot be estimated with certainty and management may not be able to estimate the range of possible losses. Brigham Minerals records reserves for contingencies when information available indicates that a loss is

Related Party Transactions

Related Party Transactions	9 Months Ended
	Sep. 30, 2020
Related Party Transactions [Abstract]
Related Party Transactions	Related-Party TransactionsBrigham Exploration Company, partially owned by Ben M. Brigham, on occasion leases some of our acreage at market rates. Brigham Minerals did not lease any acreage to Brigham Exploration Company during the three and nine months ended September 30, 2020 and therefore did not receive any payment for those periods. We did not receive payments for the three months ended September 30, 2019 from Brigham Exploration Company and for the nine months ended September 30, 2019, we received payments of $0.4 million.The Company is party to a services agreement with RS Energy Group, which provides the Company with certain software and services that assist in evaluating the acquisition of mineral interests. Warburg Pincus owned a controlling stake in RS Energy Group until February 2020. The service fees incurred under this agreement were $0.1 million for the three and nine months ended September 30, 2020 and 2019, respectively.

COVID-19 Pandemic and Impact on

COVID-19 Pandemic and Impact on Global Demand for Oil and Natural Gas	9 Months Ended
	Sep. 30, 2020
Commitments and Contingencies Disclosure [Abstract]
COVID-19 Pandemic and Impact on Global Demand for Oil and Natural Gas	COVID-19 Pandemic and Impact on Global Demand for Oil and Natural Gas The ongoing global spread of a novel strain of coronavirus (SARS-Cov-2), which causes COVID-19, has caused a continuing disruption to the oil and natural gas industry and to our business by, among other things, contributing to a significant decrease in global crude oil demand and the price for oil beginning in the first quarter of 2020 and continuing through the third quarter of 2020. The declining commodity prices have adversely affected the revenues the Company receives for its royalty interests and could affect its ability to access the capital markets on terms favorable to the Company. Additionally, in response to the decline in commodity prices, many operators on the Company's properties have announced reductions in their estimated capital expenditures for 2020 and beyond, which has and will adversely affect the near-term development of the Company's properties during the second half of the year and into 2021. While these lower commodity prices initially resulted in some of the Company's operators shutting in or curtailing production from wells on its properties during the second quarter of 2020, the Company saw a majority of its operators resume production for previously curtailed and shut in wells in connection with the improvement of commodity prices in the third quarter of 2020. In response to the COVID-19 pandemic, the potential risk to Brigham Minerals' workforce and in compliance with stay at home orders, the Company successfully implemented policies and the technological infrastructure for all of its employees to work from home in the first quarter of 2020 and ceased all business travel. In compliance with the requirements for the re-opening of the Texas economy, the Company is currently operating its office at 75% capacity while continuing to support remote working for its employees that are considered high-risk pursuant to the Center for Disease Control and Prevention guidelines or have household members meeting the criteria of those guidelines. Due to these efforts, the Company has not experienced material disruptions to its operations or the health of its workforce and has maintained the engagement and connectivity of its personnel.

Subsequent Events

Subsequent Events	9 Months Ended
	Sep. 30, 2020
Subsequent Events [Abstract]
Subsequent Events	Subsequent EventsOn November 4, 2020, the Board of Directors of Brigham Minerals declared a dividend of $0.24 per share of Class A common stock payable on December 7, 2020, to shareholders of record at the close of business on November 30, 2020.

Summary of Significant Accoun_2

Summary of Significant Accounting Policies (Policies)	9 Months Ended
	Sep. 30, 2020
Accounting Policies [Abstract]
Use of Estimates	Use of Estimates These condensed, consolidated and combined financial statements and related notes are presented in accordance with GAAP. Preparation in accordance with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets, liabilities, revenues and expenses and the disclosure of contingent assets and liabilities in the condensed consolidated and combined financial statements and accompanying notes. Although management believes these estimates are reasonable, actual results could differ from these estimates. Changes in estimates are recorded prospectively. The accompanying condensed, consolidated and combined financial statements are based on a number of significant estimates including quantities of oil, natural gas and NGL reserves that are the basis for the calculations of depreciation, depletion, amortization (“DD&A”) and impairment of oil and natural gas properties. Reservoir engineering is a subjective process of estimating underground accumulations of oil and natural gas and there are numerous uncertainties inherent in estimating quantities of proved oil and natural gas reserves. The accuracy of any reserve estimate is a function of the quality of available data and of engineering and geological interpretation and judgment. As a result, reserve estimates may differ from the quantities of oil and natural gas that are ultimately recovered. Brigham Minerals’ year-end reserve estimates are audited by Cawley, Gillespie & Associates, Inc. (“CG&A”), an independent petroleum engineering firm. Quarterly reserve estimates are internally generated by our in-house engineering staff. Other items subject to significant estimates and assumptions include the carrying amount of oil and natural gas properties, valuation of derivative instruments, share-based compensation costs, and revenue accruals.
Recently Issued Accounting Standards	Recently Adopted Accounting Standards Restricted cash includes cash that is contractually restricted for its use through an agreement with a non-related party. On December 31, 2019, the Company adopted ASU 2016-18, Statement of Cash Flows, which amends ASC 230 to add or clarify guidance on the classification and presentation of restricted cash in the statement of cash flows. The ASU requires entities to show the changes in the total of cash, cash equivalents, restricted cash and restricted cash equivalents in the statement of cash flows. As a result, entities will no longer present transfers between cash and cash equivalents and restricted cash and restricted cash equivalents in the statement of cash flows. Recently Issued Accounting Standards Not Yet Adopted Brigham Minerals’ status as an emerging growth company under Section 107 of the Jumpstart Our Business Startups Act of 2012 permits it to delay the adoption of certain accounting standards until those standards would otherwise apply to private companies. Brigham Minerals is choosing to take advantage of this extended transition period and, as a result, Brigham Minerals will comply with new or revised accounting standards on the relevant dates on which adoption of such standards is required for private companies. In February 2016, Financial Accounting Standards Board (the "FASB") issued ASU 2016-02, Leases, which requires all leasing arrangements to be presented in the balance sheet as liabilities along with a corresponding asset. ASU 2016-02 does not apply to leases of mineral rights to explore for or use crude oil and natural gas. The ASU will replace most existing lease guidance in GAAP when it becomes effective. In January 2018, the FASB issued ASU 2018-01, Land Easement Practical Expedient for Transition to Topic 842, to provide an optional practical expedient to not evaluate existing or expired land easements that were not previously accounted for as leases under Topic 840. In July 2018, the FASB issued ASU 2018-11 Leases (Topic 842): Targeted Improvements, which provides for another transition method, in addition to the existing transition method, by allowing entities to initially apply the new leases standard at the adoption date and recognize a cumulative-effect adjustment to the opening balance of retained earnings in the period of adoption (i.e. comparative periods presented in the financial statements will continue to be in accordance with current GAAP (Topic 840, Leases)). The new standard becomes effective for us during the fiscal year ending December 31, 2022 and interim periods within the fiscal year ending December 31, 2023 and early adoption is permitted. We are currently evaluating the impact that the adoption of this update will have on our condensed consolidated and combined financial statements and related disclosures.

Summary of Significant Accoun_3

Summary of Significant Accounting Policies (Tables)	9 Months Ended
	Sep. 30, 2020
Accounting Policies [Abstract]
Schedule of New Accounting Pronouncements and Changes in Accounting Principles	The September 30, 2019 accompanying statement of cash flow that was adjusted as a result of adoption of ASU 2016-18 is summarized below: Nine Months Ended September 30, 2019 (In thousands) As reported As adjusted Changes in restricted cash held in escrow for acquisitions $ 33 $ — Net cash used in investing activities $ (179,850) $ (179,883) Decrease in cash, cash equivalents and restricted cash (6,137) (6,170) Cash, cash equivalents and restricted cash, beginning of period $ 31,985 $ 32,018
Schedule of Accounts Receivable	As of September 30, 2020 and December 31, 2019, accounts receivables was comprised of the following: (In thousands) September 30, 2020 December 31, 2019 Accounts receivables Oil and gas sales $ 17,727 $ 27,888 Reserve for bad debt (855) (556) Other 2,808 2,959 Total accounts receivables $ 19,680 $ 30,291
Schedules of Concentration of Risk, by Risk Factor	Concentrations of oil and gas sales to significant customers (operators) are presented in the table below. Three Months Ended September 30, Nine Months Ended September 30, Customer (Operator) Name 2020 2019 2020 2019 Continental Resources Inc 12 % 12 % 9 % 10 % Occidental Petroleum Corp 11 % 14 % 13 % 18 % Exxon Mobil Corp 10 % 15 % 9 % 8 % Royal Dutch Shell PLC 9 % 1 % 13 % 1 %

Oil and Gas Properties (Tables)

Oil and Gas Properties (Tables)	9 Months Ended
	Sep. 30, 2020
Extractive Industries [Abstract]
Schedule of Oil and Gas Properties	Oil and gas properties as of the dates shown consisted of the following: (In thousands) September 30, 2020 December 31, 2019 Oil and gas properties, at cost, using the full cost method of accounting: Unevaluated property $ 318,693 $ 291,664 Evaluated property 472,687 449,061 Total oil and gas properties, at cost 791,380 740,725 Less accumulated depreciation, depletion, and amortization (116,532) (61,103) Total oil and gas properties, net $ 674,848 $ 679,622

Acquisitions and Divestitures (

Acquisitions and Divestitures (Tables)	9 Months Ended
	Sep. 30, 2020
Business Combinations [Abstract]
Schedule of Asset Acquisitions	During the nine months ended September 30, 2020 and 2019, Brigham Minerals entered into a number of acquisitions of mineral and royalty interests from various sellers in Texas, Oklahoma, Colorado, New Mexico, and North Dakota, as reflected in the tables below. The change in the oil and natural gas property balance is comprised of payments for acquisitions of minerals, land brokerage costs and capitalized general and administrative expenses that for the nine months ended September 30, 2020 were funded with proceeds from the December 2019 Offering and our revolving credit facility (as defined below). The changes in the oil and natural gas property balance for the nine months ended September 30, 2019 were funded with proceeds from the Owl Rock credit facility (as defined below), our revolving credit facility, and the IPO. Oil and Gas Properties Acquired Cash Consideration Paid (In thousands) Evaluated Unevaluated Quarter Ended March 31, 2020 $ 9,471 $ 15,947 $ 25,418 Quarter Ended June 30, 2020 805 2,493 3,298 Quarter Ended September 30, 2020 6,881 10,499 17,380 Total $ 17,157 $ 28,939 $ 46,096 Oil and Gas Properties Acquired Cash Consideration Paid (In thousands) Evaluated Unevaluated Quarter Ended March 31, 2019 $ 27,929 $ 13,403 $ 41,332 Quarter Ended June 30, 2019 25,050 14,925 39,975 Quarter Ended September 30, 2019 63,787 35,251 99,038 Total $ 116,766 $ 63,579 $ 180,345

Derivative Instruments (Tables)

Derivative Instruments (Tables)	9 Months Ended
	Sep. 30, 2020
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Schedule of Derivative Instruments	The following table summarizes Brigham Minerals' gain (loss) on derivative instruments, net on its condensed consolidated and combined statement of operations for the three and nine months ended September 30, 2020 and 2019: Three Months Ended September 30, Nine Months Ended September 30, (In thousands) 2020 2019 2020 2019 Realized gain $ — $ 119 $ — $ 356 Unrealized gain (loss) — (28) — (877) Combined - realized/unrealized gain (loss) $ — $ 91 $ — $ (521)

Shareholders' Equity (Tables)

Shareholders' Equity (Tables)	9 Months Ended
	Sep. 30, 2020
Equity [Abstract]
Schedule of Earnings Per Share, Basic and Diluted	The following table reflects the allocation of net income to common shareholders and EPS computations for the period indicated based on a weighted average number of common stock outstanding for the period: Three Months Ended September 30, Nine Months Ended September 30, (In thousands, except per share data) 2020 2019 2020 2019 Basic EPS Numerator: Basic net (loss) income attributable to Brigham Minerals, Inc. shareholders $ (9,465) $ 3,146 $ (8,809) $ 1,824 Less: net income attributable to Brigham Minerals, Inc. shareholders pre-IPO — — — (848) Basic net (loss) income attributable to Brigham Minerals, Inc. shareholders post-IPO $ (9,465) $ 3,146 $ (8,809) $ 976 Denominator: Basic weighted average shares outstanding 40,124 21,838 36,475 13,299 Basic EPS attributable to Brigham Minerals, Inc. shareholders $ (0.24) $ 0.14 $ (0.24) $ 0.07 Diluted EPS Numerator: Basic net (loss) income attributable to Brigham Minerals, Inc. shareholders $ (9,465) $ 3,146 $ (8,809) $ 976 Effects of dilutive securities: Effect of time-based restricted stock awards — — — — Diluted net (loss) income attributable to Brigham Minerals, Inc. shareholders $ (9,465) $ 3,146 $ (8,809) $ 976 Denominator: Basic weighted average shares outstanding 40,124 21,838 36,475 13,299 Effects of dilutive securities: Time-based restricted stock awards — 88 — 47 Diluted weighted average shares outstanding 40,124 21,926 36,475 13,346 Diluted EPS attributable to Brigham Minerals, Inc. shareholders $ (0.24) $ 0.14 $ (0.24) $ 0.07

Temporary Equity (Tables)

Temporary Equity (Tables)	9 Months Ended
	Sep. 30, 2020
Temporary Equity Disclosure [Abstract]
Temporary Equity	For the nine months ended September 30, 2020, the Company recorded adjustments to the value of temporary equity as presented in the table below: (In thousands) Temporary Equity Adjustments Balance - December 31, 2019 (1) $ 454,507 Conversion of Class B common stock to Class A common stock (1,526) Net income attributable to temporary equity 4,095 Distribution to holders of temporary equity (10,240) Adjustment of temporary equity to carrying value (2) (206,017) Balance - March 31, 2020 $ 240,819 Conversion of Class B common stock to Class A common stock (51,569) Net loss attributable to temporary equity (2,766) Distribution to holders of temporary equity (9,783) Adjustment of temporary equity to redemption value (3) 37,445 Balance - June 30, 2020 $ 214,146 Conversion of Class B common stock to Class A common stock (44,396) Net loss attributable to temporary equity (3,552) Distribution to holders of temporary equity (1,571) Adjustment of temporary equity to carrying value (4) (37,445) Balance - September 30, 2020 $ 127,182 (1) Based on 22,847,045 shares of Class B common stock outstanding and Class A common stock 10-day volume-weighted average closing price of $19.89 at December 31, 2019. (2) In connection with the IPO, the balance transferred from additional paid-in capital to temporary equity was the greater of redemption value or carrying value of the shares of Class B common stock at IPO and included an initial upward adjustment to redemption amount totaling $194.5 million. The redemption amount was lower than the carrying value as of March 31, 2020, and as such, Brigham Minerals adjusted temporary equity to equal carrying value. (3) Based on 17,612,638 shares of Class B common stock outstanding and Class A common stock 10-day volume-weighted average closing price of $12.16 at June 30, 2020. (4) The redemption amount was lower than the carrying value as of September 30, 2020, and as such, Brigham Minerals adjusted temporary equity to equal carrying value.

Share-Based Compensation (Table

Share-Based Compensation (Tables)	9 Months Ended
	Sep. 30, 2020
Share-based Payment Arrangement [Abstract]
Schedule of Restricted Incentive Unit Activity	A summary of Incentive Unit activity for the nine months ended September 30, 2020 is as follows: Incentive Units Number of Incentive Units Grant-date Fair Value Outstanding—January 1, 2020 212,733 $ 10.04 Vested 70,911 $ 10.04 Outstanding—September 30, 2020 141,822 $ 10.04 The following table summarizes activity related to RSAs for the nine months ended September 30, 2020. Restricted Stock Awards Number of RSAs Grant Date Fair Value Unvested at January 1, 2020 148,456 $ 21.25 Vested (69,601) $ 21.25 Forfeited (9,390) $ 21.25 Unvested at September 30, 2020 69,465 $ 21.25 The following table summarizes activity related to RSUs for the nine months ended September 30, 2020. Restricted Stock Units Number of RSUs Weighted-Average Grant Date Fair Value Unvested at January 1, 2020 415,815 $ 21.25 Granted 544,045 $ 16.52 Vested (60,242) $ 19.84 Forfeited (12,086) $ 20.82 Unvested at September 30, 2020 887,532 $ 18.45 The following table summarizes activity related to PSUs for the nine months ended September 30, 2020. In addition, no PSUs became vested or were forfeited during the nine months ended September 30, 2020: Performance-Based Restricted Stock Units Target PSUs Estimated Earned PSUs Grant Date Fair Value Unvested at January 1, 2020 753,546 450,836 $ 20.36 Granted 434,265 174,106 $ 15.98 Unvested at September 30, 2020 1,187,811 624,942 $ 19.14
Schedule of Share-Based Compensation Expense	Share-based compensation expense recorded for each type of share-based compensation award for the three and nine months ended September 30, 2020 and 2019 is summarized in the table below. No share-based compensation expense was incurred prior to the IPO. Three Months Ended September 30, Nine Months Ended September 30, (In thousands) 2020 2019 2020 2019 Incentive Units (1) (4) $ 178 $ 559 $ 534 $ 2,726 RSAs (1) (5) 186 285 1,076 3,741 RSUs (1) 2,052 1,686 5,486 2,932 PSUs (2) 1,102 622 3,156 1,258 Capitalized share-based compensation (3) (1,562) (1,415) (4,560) (2,425) Total share-based compensation expense $ 1,956 $ 1,737 $ 5,692 $ 8,232 (1) Share-based compensation expense relating to Incentive Units, RSAs and RSUs with ratable vesting is recognized on a straight-line basis over the requisite service period for the entire award. (2) Share-based compensation expense relating to PSUs with cliff-vesting is recognized on a straight-line basis over the performance period for the entire award. (3) During the three and nine months ended September 30, 2020, Brigham Minerals capitalized $0.8 million and $2.6 million, respectively, of share-based compensation cost to unevaluated property and $0.7 million and $1.9 million, respectively, of share-based compensation cost to evaluated property. (4) Includes $2.0 million recorded at IPO. No compensation expense was recorded prior to the IPO because the IPO was not considered probable. (5) Includes $3.2 million recorded at grant date, associated with 152,742 RSAs, which vested immediately. Future Share-Based Compensation Expense The following table reflects the future share-based compensation expense expected to be recorded for the share-based compensation awards that were outstanding at September 30, 2020, a portion of which will be capitalized: (In thousands) Incentive Units RSAs RSUs PSUs Total Year 2020 $ 178 $ 186 $ 1,925 $ 1,103 $ 3,392 2021 712 738 6,770 4,374 12,594 2022 534 228 2,662 966 4,390 Total $ 1,424 $ 1,152 $ 11,357 $ 6,443 $ 20,376

Income Taxes (Tables)

Income Taxes (Tables)	9 Months Ended
	Sep. 30, 2020
Income Tax Disclosure [Abstract]
Schedule of Income Tax Expense	Income tax expense was as follows for the periods indicated: Three Months Ended September 30, Nine Months Ended September 30, (In thousands, except for tax rate) 2020 2019 2020 2019 Income tax (benefit) expense $ (2,982) $ 807 $ (2,250) $ 1,114 Effective tax rate 18.6 % 8.7 % 16.9 % 10.7 %

Commitments and Contingencies (

Commitments and Contingencies (Tables)	9 Months Ended
	Sep. 30, 2020
Commitments and Contingencies Disclosure [Abstract]
Schedule of Future Minimum Rental Payments for Operating Leases	Future minimum lease commitments under noncancelable operating leases at September 30, 2020 are presented below: (In thousands) Commitment Year 2020 (remainder of) $ 321 2021 1,345 2022 1,419 2023 1,498 2024 1,581 Thereafter 4,445 Total $ 10,609

Business and Basis of Present_2

Business and Basis of Presentation (Details)	Sep. 15, 2020USD ($)$ / sharesshares	Jun. 12, 2020USD ($)$ / sharesshares	Dec. 16, 2019USD ($)$ / sharesshares	May 07, 2019USD ($)	Apr. 17, 2019USD ($)$ / sharesshares	Sep. 30, 2020segment	Jul. 31, 2018
Schedule of Equity Method Investments [Line Items]
Number of operating segments | segment						1
Brigham LLC
Schedule of Equity Method Investments [Line Items]
Ownership percentage by subsidiary					43.30%
Percentage of voting rights owned					100.00%
Brigham Resources
Schedule of Equity Method Investments [Line Items]
Equity method investment, ownership percentage							16.50%
Initial Public Offering
Schedule of Equity Method Investments [Line Items]
Consideration received | $					$ 273,400,000
Initial Public Offering | Class A Common Stock
Schedule of Equity Method Investments [Line Items]
Sale of stock, number of shares issued (in shares)					16,675,000
Share price (in dollars per share) | $ / shares					$ 18
December Offering | Class A Common Stock
Schedule of Equity Method Investments [Line Items]
Sale of stock, number of shares issued (in shares)			12,650,000
December Offering, Company
Schedule of Equity Method Investments [Line Items]
Consideration received | $			$ 102,700,000
December Offering, Company | Class A Common Stock
Schedule of Equity Method Investments [Line Items]
Sale of stock, number of shares issued (in shares)			6,000,000
December Offering, Selling Shareholders | Class A Common Stock
Schedule of Equity Method Investments [Line Items]
Sale of stock, number of shares issued (in shares)			6,650,000
Share price (in dollars per share) | $ / shares			$ 18.10
Share price, net (in dollars per share) | $ / shares			$ 17.376
December Offering, Equivalent Units Issued | Class A Common Stock
Schedule of Equity Method Investments [Line Items]
Sale of stock, number of shares issued (in shares)			5,496,813
June Offering | Class A Common Stock
Schedule of Equity Method Investments [Line Items]
Sale of stock, number of shares issued (in shares)		6,600,000
Share price (in dollars per share) | $ / shares		$ 13.75
Proceeds from issuance of common stock | $		$ 0
June Offering, Equivalent Units Issued By Selling Shareholders' | Class A Common Stock
Schedule of Equity Method Investments [Line Items]
Sale of stock, number of shares issued (in shares)		4,872,669
September Offering | Brigham LLC
Schedule of Equity Method Investments [Line Items]
Sale of stock, ownership percentage						76.70%
September Offering | Existing Owners of Brigham Minerals | Brigham LLC
Schedule of Equity Method Investments [Line Items]
Sale of stock, ownership percentage						23.30%
September Offering | Other Entities Affiliated with Yorktown Partners LLC and Pine Brook Road Advisors, LP | Brigham Minerals
Schedule of Equity Method Investments [Line Items]
Sale of stock, ownership percentage						17.00%
September Offering | Class A Common Stock
Schedule of Equity Method Investments [Line Items]
Sale of stock, number of shares issued (in shares)	5,021,140
Share price (in dollars per share) | $ / shares	$ 8.20
Proceeds from issuance of common stock | $	$ 0
Repurchase of common stock (in shares)	436,630
September Offering, Over-Allotment Option | Class A Common Stock
Schedule of Equity Method Investments [Line Items]
Sale of stock, number of shares issued (in shares)	654,931
September Offering, Equivalent Units Issued By Selling Shareholders' | Class A Common Stock
Schedule of Equity Method Investments [Line Items]
Sale of stock, number of shares issued (in shares)	3,062,011
New Revolving Credit Facility
Schedule of Equity Method Investments [Line Items]
Repayments of lines of credit | $			$ 80,000,000	$ 200,000,000

Summary of Significant Accoun_4

Summary of Significant Accounting Policies - Effect of Adoption on Cash Flow (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019
Restricted Cash and Cash Equivalents Items [Line Items]
Changes in restricted cash held in escrow for acquisitions		$ 0
Net cash used in investing activities	$ (44,771)	(179,883)
Decrease in cash, cash equivalents and restricted cash	(42,613)	(6,170)
Cash and cash equivalents and restricted cash, beginning of period	$ 51,133	32,018
Previously Reported
Restricted Cash and Cash Equivalents Items [Line Items]
Changes in restricted cash held in escrow for acquisitions		33
Net cash used in investing activities		(179,850)
Decrease in cash, cash equivalents and restricted cash		(6,137)
Cash and cash equivalents and restricted cash, beginning of period		$ 31,985

Summary of Significant Accounts

Summary of Significant Accounts Policies - Schedule of Accounts Receivable (Details) - USD ($) $ in Thousands	Sep. 30, 2020	Dec. 31, 2019
Accounting Policies [Abstract]
Oil and gas sales	$ 17,727	$ 27,888
Reserve for bad debt	(855)	(556)
Other	2,808	2,959
Total accounts receivables	$ 19,680	$ 30,291

Summary of Significant Accoun_5

Summary of Significant Accounting Policies - Concentration of Credit Risk (Details) - customer	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Concentration Risk [Line Items]
Concentration risk, number of customers	150		150
Revenue Benchmark | Continental Resources, Inc. | Customer Concentration Risk
Concentration Risk [Line Items]
Concentration risk (as a percentage)	12.00%	12.00%	9.00%	10.00%
Revenue Benchmark | Occidental Petroleum Corp | Customer Concentration Risk
Concentration Risk [Line Items]
Concentration risk (as a percentage)	11.00%	14.00%	13.00%	18.00%
Revenue Benchmark | Exxon Mobil Corp | Customer Concentration Risk
Concentration Risk [Line Items]
Concentration risk (as a percentage)	10.00%	15.00%	9.00%	8.00%
Revenue Benchmark | Royal Dutch Shell PLC | Customer Concentration Risk
Concentration Risk [Line Items]
Concentration risk (as a percentage)	9.00%	1.00%	13.00%	1.00%
Revenue Benchmark | Top Ten Operators | Customer Concentration Risk
Concentration Risk [Line Items]
Concentration risk (as a percentage)	63.00%		63.00%

Oil and Gas Properties - Schedu

Oil and Gas Properties - Schedule of Oil and Gas Properties (Details) - USD ($) $ in Thousands	Sep. 30, 2020	Dec. 31, 2019
Oil and gas properties, at cost, using the full cost method of accounting:
Unevaluated property	$ 318,693	$ 291,664
Evaluated property	472,687	449,061
Total oil and gas properties, at cost	791,380	740,725
Less accumulated depreciation, depletion, and amortization	(116,532)	(61,103)
Total oil and gas properties, net	$ 674,848	$ 679,622

Oil and Gas Properties - Narrat

Oil and Gas Properties - Narrative (Details) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020USD ($)MBoe$ / Boe	Sep. 30, 2019USD ($)$ / Boe	Sep. 30, 2020USD ($)	Sep. 30, 2020$ / Boe	Sep. 30, 2020$ / bbl	Sep. 30, 2020$ / MMBTU	Sep. 30, 2020MBoe	Sep. 30, 2019USD ($)$ / Boe
Extractive Industries [Abstract]
Depletion expense	$ 11,600	$ 8,300	$ 35,000					$ 19,900
Average depletion of proved properties (in dollars per Boe) | $ / Boe	13.58	11.49		13.40				10.91
Capitalized costs	$ 2,600	$ 2,300	7,600					$ 5,000
Ceiling limitation, oil price used (in dollars per BOE/MMbtu)					43.55	1.98
Impairment of oil and gas properties	$ 18,905	$ 0	$ 18,905					$ 0
Decrease in proved undeveloped reserves (in MBoe) | MBoe	228						5,279

Acquisitions and Divestitures -

Acquisitions and Divestitures - Schedule of Acquisitions (Details) - USD ($) $ in Thousands	3 Months Ended						9 Months Ended
	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Sep. 30, 2020	Sep. 30, 2019
Business Combinations [Abstract]
Assets acquired, evaluated	$ 6,881	$ 805	$ 9,471	$ 63,787	$ 25,050	$ 27,929	$ 17,157	$ 116,766
Assets acquired, unevaluated	10,499	2,493	15,947	35,251	14,925	13,403	28,939	63,579
Cash consideration paid	$ 17,380	$ 3,298	$ 25,418	$ 99,038	$ 39,975	$ 41,332	$ 46,096	$ 180,345

Revenue from contracts with c_2

Revenue from contracts with customers (Details) - USD ($) $ in Thousands	Sep. 30, 2020	Dec. 31, 2019
Revenue from Contract with Customer [Abstract]
Oil and gas sales	$ 17,727	$ 27,888

Derivative Instruments - Narrat

Derivative Instruments - Narrative (Details) - USD ($) $ in Millions	May 31, 2019	Jul. 31, 2018
Brigham Resources, LLC
Derivative [Line Items]
Cash collateral posted for existing swap contracts	$ 1.6	$ 1.4

Derivative Instruments - Schedu

Derivative Instruments - Schedule of Gains (Losses) on Derivatives (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Realized gain	$ 0	$ 119	$ 0	$ 356
Unrealized gain (loss)	0	(28)	0	(877)
Combined - realized/unrealized gain (loss)	$ 0	$ 91	$ 0	$ (521)

Long-Term Debt (Details)

Long-Term Debt (Details)	Dec. 16, 2019USD ($)	May 16, 2019	May 07, 2019USD ($)	Jul. 27, 2018USD ($)	Dec. 31, 2019USD ($)	Sep. 30, 2020USD ($)	Sep. 30, 2019USD ($)
Debt Instrument [Line Items]
Loss on extinguishment of debt			$ 6,900,000			$ 0	$ 6,933,000
Unamortized debt issuance costs written off			4,000,000
Prepayment premium paid			2,100,000			0	$ 2,091,000
Legal fees paid			800,000
Term Loan Facility
Debt Instrument [Line Items]
Line of credit, borrowing base				$ 125,000,000
Term Loan Facility | Base Rate
Debt Instrument [Line Items]
Basis spread on variable rate (as a percent)				4.50%
Term Loan Facility | London Interbank Offered Rate (LIBOR)
Debt Instrument [Line Items]
Basis spread on variable rate (as a percent)				5.50%
Term Loan Facility | London Interbank Offered Rate (LIBOR) | Minimum
Debt Instrument [Line Items]
Interest rate, floor (as a percent)				1.00%
Delayed Draw Term Loan
Debt Instrument [Line Items]
Line of credit, borrowing base				$ 75,000,000
New Revolving Credit Facility
Debt Instrument [Line Items]
Repayments of lines of credit	$ 80,000,000		$ 200,000,000
Revolving Credit Facility
Debt Instrument [Line Items]
Repayment of debt outstanding				70,000,000	$ 80,000,000
Line of credit, borrowing base						135,000,000
Line of credit, outstanding borrowings						5,000,000
Line of credit, availability for future borrowings						$ 130,000,000
Revolving Credit Facility | Term Loan Facility
Debt Instrument [Line Items]
Line of credit, borrowing base				$ 10,000,000
Brigham Resources, LLC | New Revolving Credit Facility
Debt Instrument [Line Items]
Debt instrument, covenant, current ratio, minimum		1
Debt instrument, covenant, total net funded debt to consolidated EBITDA ratio, maximum		4
Brigham Resources, LLC | New Revolving Credit Facility | Interest period, one month
Debt Instrument [Line Items]
Interest period (in months)		1 month
Brigham Resources, LLC | New Revolving Credit Facility | Interest period, two months
Debt Instrument [Line Items]
Interest period (in months)		2 months
Brigham Resources, LLC | New Revolving Credit Facility | Interest period, three months
Debt Instrument [Line Items]
Interest period (in months)		3 months
Brigham Resources, LLC | New Revolving Credit Facility | Interest period, four months
Debt Instrument [Line Items]
Interest period (in months)		6 months
Brigham Resources, LLC | New Revolving Credit Facility | Interest period, twelve months
Debt Instrument [Line Items]
Interest period (in months)		12 months
Brigham Resources, LLC | New Revolving Credit Facility | Minimum
Debt Instrument [Line Items]
Commitment fee, percentage		0.375%
Brigham Resources, LLC | New Revolving Credit Facility | Maximum
Debt Instrument [Line Items]
Commitment fee, percentage		0.50%
Brigham Resources, LLC | New Revolving Credit Facility | London Interbank Offered Rate (LIBOR) | Minimum
Debt Instrument [Line Items]
Basis spread on variable rate (as a percent)		1.75%
Brigham Resources, LLC | New Revolving Credit Facility | London Interbank Offered Rate (LIBOR) | Maximum
Debt Instrument [Line Items]
Basis spread on variable rate (as a percent)		2.75%
Brigham Resources, LLC | New Revolving Credit Facility | Adjusted Base Rate | Minimum
Debt Instrument [Line Items]
Basis spread on variable rate (as a percent)		0.75%
Brigham Resources, LLC | New Revolving Credit Facility | Adjusted Base Rate | Maximum
Debt Instrument [Line Items]
Basis spread on variable rate (as a percent)		1.75%

Shareholders' Equity - Narrativ

Shareholders' Equity - Narrative (Details)	Sep. 15, 2020$ / sharesshares	Sep. 30, 2020voteshares	Dec. 31, 2019shares
Class of Stock [Line Items]
Treasury stock (in shares)		436,630	0
Class A Common Stock
Class of Stock [Line Items]
Common stock outstanding (in shares)		43,315,863	34,040,934
Number of votes per share (vote) | vote		1
Class A Common Stock | September Offering
Class of Stock [Line Items]
Purchase of treasury stock (in shares)	436,630
Common shares acquired (in dollars per share) | $ / shares	$ 8.08
Treasury stock (in shares)		436,630
Class B Common Stock
Class of Stock [Line Items]
Common stock outstanding (in shares)		13,167,687	22,847,045
Number of votes per share (vote) | vote		1
Performance-Based Restricted Stock Units
Class of Stock [Line Items]
Shares granted during period (in shares)		1,187,811

Shareholders' Equity - Schedule

Shareholders' Equity - Schedule of Earnings per Share, Basic and Diluted (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	1 Months Ended	2 Months Ended	3 Months Ended					9 Months Ended
	Apr. 16, 2019	Jun. 30, 2019	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Sep. 30, 2019	Mar. 31, 2019	Sep. 30, 2020	Sep. 30, 2019
Numerator:
Basic net (loss) income attributable to Brigham Minerals, Inc. shareholders	$ 314	$ (2,170)	$ (9,465)	$ (4,050)	$ 4,706	$ 3,146	$ 534	$ (8,809)	$ 1,824
Less: net income attributable to Brigham Minerals, Inc. shareholders pre-IPO			0			0		0	(848)
Basic net (loss) income attributable to Brigham Minerals, Inc. shareholders post-IPO			$ (9,465)			$ 3,146		$ (8,809)	$ 976
Denominator:
Basic weighted average shares outstanding (in shares)			40,124			21,838		36,475	13,299
Basic EPS attributable to Brigham Minerals, Inc. shareholders (in dollars per share)			$ (0.24)			$ 0.14		$ (0.24)	$ 0.07
Numerator:
Effect of time-based restricted stock awards			$ 0			$ 0		$ 0	$ 0
Diluted net (loss) income attributable to Brigham Minerals, Inc. shareholders			$ (9,465)			$ 3,146		$ (8,809)	$ 976
Denominator:
Basic weighted average shares outstanding (in shares)			40,124			21,838		36,475	13,299
Effects of dilutive securities:
Time-based restricted stock awards (in shares)			0			88		0	47
Diluted weighted average shares outstanding (in shares)			40,124			21,926		36,475	13,346
Diluted EPS attributable to Brigham Minerals, Inc. shareholders (in dollars per share)			$ (0.24)			$ 0.14		$ (0.24)	$ 0.07

Temporary Equity (Details)

Temporary Equity (Details) $ / shares in Units, $ in Thousands	Apr. 17, 2019USD ($)vote	Jun. 30, 2019USD ($)	Sep. 30, 2020USD ($)	Jun. 30, 2020USD ($)$ / sharesshares	Mar. 31, 2020USD ($)	Sep. 30, 2019USD ($)	Sep. 30, 2020USD ($)vote	Dec. 31, 2019$ / sharesshares
Increase (Decrease) in Temporary Equity [Roll Forward]
Beginning balance			$ 214,146	$ 240,819	$ 454,507		$ 454,507
Conversion of Class B common stock to Class A common stock			(44,396)	(51,569)	(1,526)
Net income attributable to temporary equity			(3,552)	(2,766)	4,095
Distribution to holders of temporary equity			(1,571)	(9,783)	(10,240)
Adjustment of temporary equity to redemption value	$ 194,500	$ 97,344	(37,445)	37,445	(206,017)	$ (3,797)
Ending balance			$ 127,182	$ 214,146	$ 240,819		$ 127,182
Class B Common Stock
Temporary Equity [Line Items]
Number of votes per share (vote) | vote							1
Conversion of shares, number of shares received | vote	1
Increase (Decrease) in Temporary Equity [Roll Forward]
Temporary equity (in shares) | shares				17,612,638				22,847,045
Temporary equity, share price (in dollars per share) | $ / shares				$ 12.16				$ 19.89
Class A Common Stock
Temporary Equity [Line Items]
Number of votes per share (vote) | vote							1
Conversion of shares, number of shares received | vote	1
Existing Owners of Brigham Minerals | Class B Common Stock
Temporary Equity [Line Items]
Number of votes per share (vote) | vote	1

Share-Based Compensation - Narr

Share-Based Compensation - Narrative (Details) $ / shares in Units, $ in Millions	Apr. 23, 2019$ / sharesshares	Apr. 17, 2019vote	Sep. 30, 2020shares	Mar. 31, 2020shares	Sep. 30, 2020USD ($)$ / sharesshares	May 08, 2015shares
Class B Common Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Conversion of shares, number of shares received | vote		1
Class A Common Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Conversion of shares, number of shares received | vote		1
Incentive Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares authorized (in shares)						120,000
Award vesting percentage at grant (as a percent)					20.00%
Award vesting percentage on each anniversary (as a percent)					20.00%
Conversion of shares, number of shares received | vote		1
Vested (in shares)					70,911
RSAs
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares granted during period, grant date fair value (in dollars per share) | $ / shares	$ 21.25
Shares granted during period (in shares)	312,189
Vested (in shares)	152,742				69,601
Accelerated vesting of RSAs (in shares)				30,174
Payment in payroll tax withholding | $					$ 0.2
Shares surrendered for tax withholdings on vesting equity awards (in shares)					18,651
RSAs | First anniversary
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting percentage at grant (as a percent)					33.34%
RSAs | Second anniversary
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting percentage at grant (as a percent)					33.34%
RSAs | Third anniversary
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting percentage at grant (as a percent)					33.34%
Performance-Based Restricted Stock Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares granted during period, grant date fair value (in dollars per share) | $ / shares					$ 15.98
Shares granted during period (in shares)					1,187,811
Period of expense recognition					3 years
Performance-Based Restricted Stock Units | Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting percentage at grant (as a percent)					0.00%
Performance-Based Restricted Stock Units | Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting percentage at grant (as a percent)					200.00%
RSUs
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares granted during period, grant date fair value (in dollars per share) | $ / shares					$ 16.52
Shares granted during period (in shares)					544,045
Vested (in shares)					60,242
Accelerated vesting of RSAs (in shares)			10,598
Award vesting period (in years)					3 years
RSUs | First anniversary
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting percentage at grant (as a percent)					33.34%
RSUs | Second anniversary
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting percentage at grant (as a percent)					33.34%
RSUs | Third anniversary
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting percentage at grant (as a percent)					33.34%
Long Term Incentive Plan | Class A Common Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares authorized (in shares)			5,999,600		5,999,600
Shares available for future grants (in shares)			3,466,893		3,466,893

Share-Based Compensation - Summ

Share-Based Compensation - Summary of Restricted Stock Unit Activity (Details) - $ / shares	Apr. 23, 2019	Sep. 30, 2020
Incentive Units
Number of Incentive Units
Beginning balance (in shares)		212,733
Vested (in shares)		(70,911)
Ending balance (in shares)		141,822
Grant-date Fair Value
Beginning balance (in dollars per share)		$ 10.04
Grant-date fair value, Vested (in dollars per share)		10.04
Ending balance (in dollars per share)		$ 10.04
RSAs
Number of Incentive Units
Beginning balance (in shares)		148,456
Granted (in shares)	312,189
Vested (in shares)	(152,742)	(69,601)
Forfeited (in shares)		(9,390)
Ending balance (in shares)		69,465
Grant-date Fair Value
Beginning balance (in dollars per share)		$ 21.25
Grant-date fair value, Granted (in dollars per share)	$ 21.25
Grant-date fair value, Vested (in dollars per share)		21.25
Grant-date fair value, Forfeited (in dollars per share)		21.25
Ending balance (in dollars per share)		$ 21.25
RSUs
Number of Incentive Units
Beginning balance (in shares)		415,815
Granted (in shares)		544,045
Vested (in shares)		(60,242)
Forfeited (in shares)		(12,086)
Ending balance (in shares)		887,532
Grant-date Fair Value
Beginning balance (in dollars per share)		$ 21.25
Grant-date fair value, Granted (in dollars per share)		16.52
Grant-date fair value, Vested (in dollars per share)		19.84
Grant-date fair value, Forfeited (in dollars per share)		20.82
Ending balance (in dollars per share)		$ 18.45
Target PSUs
Number of Incentive Units
Beginning balance (in shares)		753,546
Granted (in shares)		434,265
Ending balance (in shares)		1,187,811
Estimated Earned PSUs
Number of Incentive Units
Beginning balance (in shares)		450,836
Granted (in shares)		174,106
Ending balance (in shares)		624,942
Performance-Based Restricted Stock Units
Number of Incentive Units
Granted (in shares)		1,187,811
Grant-date Fair Value
Beginning balance (in dollars per share)		$ 20.36
Grant-date fair value, Granted (in dollars per share)		15.98
Ending balance (in dollars per share)		$ 19.14

Share-Based Compensation - Sche

Share-Based Compensation - Schedule of Compensation Expense and Future Stock Compensation Expense (Details) - USD ($) $ in Thousands	Apr. 23, 2019	Apr. 17, 2019	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Compensation expense		$ 2,000
Capitalized share-based compensation			$ (1,562)	$ (1,415)	$ (4,560)	$ (2,425)
Total share-based compensation expense			1,956	1,737	5,692	8,232
Future share-based compensation expense					20,376
2020
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Future share-based compensation expense					3,392
2021
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Future share-based compensation expense					12,594
2022
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Future share-based compensation expense					4,390
Incentive Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Compensation expense			178	559	534	2,726
Future share-based compensation expense					1,424
Incentive Units | 2020
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Future share-based compensation expense					178
Incentive Units | 2021
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Future share-based compensation expense					712
Incentive Units | 2022
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Future share-based compensation expense					534
RSAs
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Compensation expense	$ 3,200		186	285	1,076	3,741
Future share-based compensation expense					1,152
RSAs | 2020
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Future share-based compensation expense					186
RSAs | 2021
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Future share-based compensation expense					738
RSAs | 2022
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Future share-based compensation expense					228
RSUs
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Compensation expense			2,052	1,686	5,486	2,932
Future share-based compensation expense					11,357
RSUs | 2020
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Future share-based compensation expense					1,925
RSUs | 2021
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Future share-based compensation expense					6,770
RSUs | 2022
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Future share-based compensation expense					2,662
PSUs
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Compensation expense			1,102	$ 622	3,156	$ 1,258
Future share-based compensation expense					6,443
PSUs | 2020
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Future share-based compensation expense					1,103
PSUs | 2021
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Future share-based compensation expense					4,374
PSUs | 2022
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Future share-based compensation expense					966
Unevaluated Property
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Capitalized share-based compensation			(800)		(2,600)
Evaluated Property
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Capitalized share-based compensation			$ (700)		$ (1,900)

Income Taxes (Details)

Income Taxes (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019	Jul. 31, 2018
Operating Loss Carryforwards [Line Items]
Income tax (benefit) expense	$ (2,982)	$ 807	$ (2,250)	$ 1,114
Effective tax rate (as a percent)	18.60%	8.70%	16.90%	10.70%
September Offering | Brigham LLC
Operating Loss Carryforwards [Line Items]
Sale of stock, ownership percentage			76.70%
Brigham Resources
Operating Loss Carryforwards [Line Items]
Equity method investment, ownership percentage					16.50%

Commitments and Contingencies_2

Commitments and Contingencies (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Commitments and Contingencies Disclosure [Abstract]
Rent expense	$ 300	$ 200	$ 800	$ 400
2020 (remainder of)	321		321
2021	1,345		1,345
2022	1,419		1,419
2023	1,498		1,498
2024	1,581		1,581
Thereafter	4,445		4,445
Total	$ 10,609		$ 10,609

Related Party Transactions (Det

Related Party Transactions (Details) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Ben M. Brigham
Related Party Transaction [Line Items]
Amount received from related party	$ 0	$ 0	$ 0	$ 400,000
RS Energy Group | Service Agreement For Evaluating The Acquisition Of Mineral Interests | Maximum
Related Party Transaction [Line Items]
Service fees incurred under agreement	$ 100,000	$ 100,000	$ 100,000	$ 100,000

COVID-19 Pandemic and Impact _2

COVID-19 Pandemic and Impact on Global Demand for Oil and Natural Gas (Details)	9 Months Ended
	Sep. 30, 2020
Commitments and Contingencies Disclosure [Abstract]
Office capacity, percent reopened	75.00%

Subsequent Events (Details)

Subsequent Events (Details)	Nov. 04, 2020$ / shares
Class A Common Stock | Subsequent Event
Subsequent Event [Line Items]
Dividends declared (in dollars per share)	$ 0.24