MNRL Sub (MNRL) 10-K 28 Feb 20 2019 FY Annual report Financial data

Document and Entity Information

Document and Entity Information - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Feb. 27, 2020	Jun. 30, 2019
Document Information [Line Items]
Document Type	10-K
Amendment Flag	false
Document Period End Date	Dec. 31, 2019
Document Fiscal Year Focus	2019
Document Fiscal Period Focus	FY
Entity Registrant Name	Brigham Minerals, Inc.
Entity Central Index Key	0001745797
Current Fiscal Year End Date	--12-31
Entity Filer Category	Non-accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	true
Entity Ex Transition Period	false
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Well-known Seasoned Issuer	No
Entity Voluntary Filers	No
Entity Shell Company	false
Entity Public Float			$ 431.9
Common Class A
Document Information [Line Items]
Entity Common Stock, Shares Outstanding		34,181,268
Class B Common Stock
Document Information [Line Items]
Entity Common Stock, Shares Outstanding		22,706,711

Consolidated and Combined Balan

Consolidated and Combined Balance Sheets - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Current assets:
Cash and cash equivalents	$ 51,133	$ 31,985
Restricted cash	0	474
Accounts receivable	30,291	20,695
Prepaid expenses and other	1,688	7,103
Short-term derivative assets	0	1,057
Total current assets	83,112	61,314
Non-current assets:
Unevaluated property	291,664	228,151
Evaluated property	449,061	289,851
Less accumulated depreciation, depletion, and amortization	(61,103)	(27,628)
Total oil and gas properties, net	679,622	490,374
Other property and equipment	5,095	5,408
Less accumulated depreciation	(3,703)	(3,115)
Other property and equipment - net	1,392	2,293
Deferred tax asset	18,823	0
Other assets, net	1,213	45
Total assets	784,162	554,026
Current liabilities:
Accounts payable and accrued liabilities	11,533	5,662
Current portion of debt	0	2,188
Total current liabilities	11,533	7,850
Long-term debt	0	168,517
Deferred tax liability	0	3,684
Other non-current liabilities	803	27
Temporary equity	454,507	0
Shareholders' and members' equity:
Members' contributed capital	0	208,728
Preferred stock, $0.01 par value; 50,000,000 authorized; no shares issued and outstanding	0	0
Additional paid-in capital	323,578	(3,057)
Accumulated (deficit) earnings	(6,599)	168,277
Total shareholders' equity attributable to Brigham Minerals, Inc. and members' equity	317,319	373,948
Total liabilities and shareholders' and members' equity	784,162	554,026
Class A Common Stock
Shareholders' and members' equity:
Common stock	340	0
Class B Common Stock
Shareholders' and members' equity:
Common stock	$ 0	$ 0

Consolidated and Combined Bal_2

Consolidated and Combined Balance Sheets (Parenthetical) - $ / shares	Dec. 31, 2019	Dec. 31, 2018
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
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)	34,040,934
Common stock, shares outstanding (in shares)	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)	22,847,045
Common stock, shares outstanding (in shares)	22,847,045

Consolidated and Combined State

Consolidated and Combined Statements of Operations - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
REVENUES
Mineral and royalty revenues	$ 97,886	$ 59,758	$ 30,066
Lease bonus and other revenues	3,629	7,506	10,842
Total revenues	101,515	67,264	40,908
OTHER OPERATING INCOME:
Gain on sale of oil and gas properties, net	0	0	94,551
OPERATING EXPENSES
Gathering, transportation and marketing	4,985	3,944	1,754
Severance and ad valorem taxes	6,409	3,536	1,601
Depreciation, depletion, and amortization	30,940	13,915	6,955
General and administrative	21,963	6,638	3,935
Total operating expenses	64,297	28,033	14,245
NET INCOME FROM OPERATIONS	37,218	39,231	121,214
(Loss) gain on derivative instruments, net	(568)	424	(121)
Interest expense, net	(5,609)	(7,446)	(556)
Loss on extinguishment of debt	(6,892)	0	0
Gain (loss) on sale and distribution of equity securities	0	823	(4,222)
Other income, net	169	110	305
Income before income taxes	24,318	33,142	116,620
Income tax expense	2,679	327	1,008
NET INCOME	(21,639)	(32,815)	(115,612)
Less: Net income attributable to temporary equity	(5,092)	(30,976)	(115,612)
Less: Net income attributable to temporary equity	(9,646)	0	0
Net income attributable to common shareholders	$ 6,901	$ 1,839	$ 0
NET INCOME PER COMMON SHARE
Basic (in dollars per share)	$ 0.26	$ 0	$ 0
Diluted (in dollars per share)	$ 0.26	$ 0	$ 0
WEIGHTED AVERAGE COMMON SHARES OUTSTANDING
Basic (in shares)	22,870	0	0
Diluted (in shares)	22,870	0	0

Consolidated and Combined Sta_2

Consolidated and Combined Statement of Comprehensive Income - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Statement of Comprehensive Income [Abstract]
NET INCOME	$ 21,639	$ 32,815	$ 115,612
Other comprehensive income
Unrealized gains (losses) on available for sale equity securities, net	0	141	(3,540)
Reclassification of (gains) losses on sale and distribution of available for sale equity securities	0	(823)	4,222
Other comprehensive income	0	(682)	682
COMPREHENSIVE INCOME	21,639	32,133	116,294
Comprehensive income attributable to Predecessor	(5,092)	(30,294)	(116,294)
Comprehensive income attributable to temporary equity	(9,646)	0	0
Comprehensive income attributable to shareholders	$ 6,901	$ 1,839	$ 0

Consolidated and Combined Sta_3

Consolidated and Combined Statement of Changes in Shareholders' and Members' Equity - USD ($) $ in Thousands	Total	Members' Contributed Capital	Additional Paid-In Capital	AOCI	[1]	Retained Earnings	Class A Common Stock	Class A Common StockCommon Stock	Class B Common Stock	Class B Common StockCommon Stock	December Offering	December OfferingAdditional Paid-In Capital	December OfferingClass A Common StockCommon Stock	December OfferingClass B Common StockCommon Stock
Beginning balance at Dec. 31, 2016	$ 300,498	$ 280,648				$ 19,850
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Contributions	37,600	37,600
Distributions	(152,218)	(152,218)
Other comprehensive income	682			$ 682
NET INCOME	115,612					115,612
Net income attributable to predecessor	115,612
Net income attributable to shareholders	0
Ending balance at Dec. 31, 2017	302,174	166,030		682		135,462
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Contributions	45,078	45,078
Distributions	(3,313)	(3,313)
Other comprehensive income	(682)			$ (682)
NET INCOME	32,815
Net income attributable to predecessor	30,976					30,976
Deferred tax liability arising from corporate reorganization	(3,057)		$ (3,057)
Proceeds from sale of equity securities	933	933
Net income attributable to shareholders	1,839					1,839
Ending balance at Dec. 31, 2018	373,948	208,728	(3,057)			168,277
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income attributable to predecessor	5,092					5,092
Net income attributable to shareholders	848					848
Ending balance at Apr. 16, 2019	379,888	208,728	(3,057)			174,217
Beginning balance at Dec. 31, 2018	373,948	208,728	(3,057)			168,277
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Other comprehensive income	0
NET INCOME	21,639
Net income attributable to predecessor	5,092
Net income attributable to shareholders	6,901
Ending balance at Dec. 31, 2019	317,319		323,578			(6,599)		$ 340
Ending balance (in shares) at Dec. 31, 2019							34,040,934	34,041,000	22,847,045	22,847,000
Beginning balance at Apr. 16, 2019	379,888	208,728	(3,057)			174,217
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 cost (in shares)								16,675,000					6,000,000
Issuance of common stock in IPO, net of offering cost	273,448		273,281					$ 167			$ 102,680	$ 102,620	$ 60
Deferred tax asset arising from the IPO	13,664		13,664								9,508	9,508
Reclassification of noncontrolling interests to temporary equity	(518,000)		(518,000)
Share-based compensation expense (in shares)								124,000
Share-based compensation expense	12,633		12,632					$ 1
Dividends paid	(14,663)					(14,663)
Dividend equivalent rights	(676)					(676)
Net income attributable to shareholders	6,053					6,053
Adjustment of temporary equity to redemption amount	(51,572)		(51,572)
Conversion of Class B shares to Class A shares (in shares)													5,931,000	(5,931,000)
Conversion of Class B shares to Class A shares	104,390		104,331										$ 59
Restricted stock forfeited (in shares)													(11,000)
Restricted stock forfeited											$ (34)	$ (34)
Ending balance at Dec. 31, 2019	$ 317,319		$ 323,578			$ (6,599)		$ 340
Ending balance (in shares) at Dec. 31, 2019							34,040,934	34,041,000	22,847,045	22,847,000
[1]	AOCI - Accumulated other comprehensive income

Consolidated and Combined Sta_4

Consolidated and Combined Statement of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
CASH FLOWS FROM OPERATING ACTIVITIES
NET INCOME	$ 21,639	$ 32,815	$ 115,612
Adjustments to reconcile net earnings to net cash provided by operating activities:
Depreciation and amortization	30,940	13,915	6,955
Share-based compensation expense	10,049	0	0
Loss on extinguishment of debt	6,892	0	0
Amortization of debt issue costs	433	690	121
Deferred income taxes	665	237	295
Loss (gain) on derivative instruments, net	568	(424)	121
Net cash received (paid) for derivative settlements	470	(754)	0
(Gain) loss on sale and distribution of equity securities	0	(823)	4,222
Bad debt expense	669	382	0
(Gain) on sale of oil and gas properties	0	0	(94,551)
Changes in operating assets and liabilities:
(Increase)/Decrease in accounts receivable	(10,246)	(8,022)	(6,787)
(Increase)/Decrease in other current assets	1,787	(6,116)	(44)
Increase/(Decrease) in accounts payable and accrued liabilities	5,112	(484)	3,956
Increase/(Decrease) in other long-term liabilities	47	28	0
Other operating	0	0	(499)
Net cash provided by (used in) operating activities	69,025	31,444	29,401
CASH FLOWS FROM INVESTING ACTIVITIES
Additions to oil and gas properties	(219,481)	(195,603)	(101,437)
Additions to other fixed assets	(474)	(723)	(1,311)
Proceeds from sale of oil and gas properties, net	3,123	125	111,024
Proceeds from sale of equity securities	0	933	17,896
Net cash provided by (used in) investing activities	(216,832)	(195,268)	26,172
CASH FLOWS FROM FINANCING ACTIVITIES
Payments of short-term related party loan	0	(7,000)	0
Borrowing of short-term related party loan	0	7,000	0
Payments of short-term debt	(4,596)	0	0
Payments of long-term debt	(275,404)	(70,000)	(15,000)
Borrowing of long-term debt	105,000	218,000	27,000
Payment of debt extinguishment fees	(2,091)	0	0
Proceeds from issuance of Class A common stock sold in initial public offering, net of offering costs	277,075	0	0
Proceeds from issuance of Class A common stock, net of offering costs	102,680	0	0
Capital contributions	0	46,011	37,000
Capital distributions	(441)	0	(131,544)
Dividends paid	(14,663)	0	0
Distributions to holders of temporary equity	(19,731)	0	0
Loan closing costs	(1,348)	(4,614)	(103)
Net cash provided by (used in) financing activities	166,481	189,397	(82,647)
Increase/Decrease in cash, cash equivalents and restricted cash	18,674	25,573	(27,074)
Cash, cash equivalents and restricted cash, beginning of period	32,459	6,886	33,960
Cash, cash equivalents and restricted cash end of period	51,133	32,459	6,886
Supplemental disclosure of non-cash activity:
Equity securities received	0	0	45,633
Equity securities distributed	0	3,313	(20,092)
Accrued capital expenditures	63	1,426	73
Vesting of A-M units	0	0	600
Capitalized share-based compensation cost	3,818	0	0
Temporary equity cumulative adjustment to fair value	51,572	0	0
Supplemental cash flow information:
Cash paid for interest	6,192	6,123	458
Cash paid for taxes	$ 832	$ 604	$ 2

Business and Basis of Presentat

Business and Basis of Presentation	12 Months Ended
	Dec. 31, 2019
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 an initial public offering of 16,675,000 shares of Class A common stock at a price to the public of $18.00 per share (the “IPO”). This resulted in net proceeds of approximately $273.4 million , after deducting underwriting commissions and discounts and offering expenses. As a result of the IPO and the corporate restructuring described below, 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. In connection with the IPO, • all of the outstanding membership interests in Brigham LLC were converted into a single class of common units in Brigham LLC (the “Brigham LLC Units”); • Brigham Minerals issued shares of Class A common stock to certain of our Original Owners in exchange for incentive units in Brigham Equity Holdings; • Brigham Equity Holdings distributed all of its equity interests in Brigham LLC, other than its interests in Brigham LLC attributable to certain unvested incentive units in Brigham Equity Holdings, to the Original Owners and Brigham Minerals (which resulted in the ownership in Brigham LLC of our Original Owners with respect to unvested incentive units remaining consolidated in Brigham Equity Holdings); • Brigham Minerals issued 16,675,000 shares of Class A common stock, including the Underwriters' overallotment, to purchasers in the IPO in exchange for the cash proceeds of the IPO; • each holder of Brigham LLC Units following the restructuring (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; and • 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 holds, 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. After the transactions discussed above and after the IPO, • the Original Owners own all of Brigham Minerals' Class B common stock, representing 56.7% of Brigham Minerals' capital stock; • the Original Owners own 5,322,197 , or 24.2% , of Brigham Minerals' Class A common stock, representing 10.5% of Brigham Minerals' capital stock; • investors in the IPO own 16,675,000 shares, or 75.8% , of Brigham Minerals' Class A common stock, representing 32.8% of Brigham Minerals' capital stock; • Brigham Minerals owns an approximate 43.3% interest in Brigham LLC; and • the Original Owners own directly an approximate 56.7% interest in Brigham LLC (in addition to the 10.5% interest in Brigham LLC the Original Owners own indirectly through their ownership of shares of Brigham Minerals' Class A common stock). Following the IPO, and prior to December 31, 2019 , Brigham Resources: • fully repaid the $200.0 million outstanding balance under the Owl Rock credit facility (as defined below) on May 7, 2019; • wrote-off $4.0 million of capitalized debt issuance cost and incurred $2.1 million in prepayment fees and $0.8 million in accrued legal fees resulting in a loss on extinguishment of debt of approximately $6.9 million in its statement of operations; • applied capitalized issuance cost of $8.7 million as a reduction of additional paid-in-capital of which $3.6 million was incurred in 2018 and $5.1 million was incurred in 2019 ; • recognized a cumulative effect adjustment of $2.0 million of share-based compensation cost related to the Incentive Units (as defined below), pertaining to the period from the grant date through the IPO; • recognized an additional charge for share-based compensation cost of approximately $11.9 million related to the estimated fair value of the restricted stock awards (“RSAs”), restricted stock units subject to time-based vesting (“RSUs”) and restricted stock units subject to performance based vesting (“PSUs”), net of $3.8 million of capitalized share-based compensation expense, all of which was non-cash. In addition, as the vesting conditions of the Incentive Units, RSAs, RSUs and PSUs are satisfied, Brigham Minerals will recognize additional non-cash charges for share-based compensation cost of approximately $19.3 million , a portion of which will be capitalized; • entered into a credit agreement on May 16, 2019 with a banking syndicate, including Wells Fargo Bank, N.A., as administrative agent for a new revolving credit facility (as defined below) with a borrowing base of $135.0 million and subsequently increased to $150.0 million as of December 31, 2019 ; and • received a full refund of the cash collateral related to the existing WTI fixed price swap contracts, which was $1.6 million as of May 2019, upon entering into the new revolving credit facility. 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 Brigham LLC units, 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 under our revolving credit agreement and will be used 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. Following the completion of the December 2019 Offering and certain redemptions of Class B shares and an equivalent number of Brigham LLC units to Class A shares completed during November and December 2019, Brigham Minerals owned a 59.8% interest in Brigham LLC and the Sponsors collectively owned 39.1% of the outstanding voting stock of Brigham Minerals as of December 31, 2019 . 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 consolidates 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 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 our Predecessor beginning in 2018. The accompanying consolidated and combined financial statements of Brigham Minerals have been prepared in accordance with accounting principles generally accepted in the United States of America (“GAAP”). The consolidated and combined financial statements reflect all normal recurring adjustments that, in the opinion of management, are necessary for a fair representation. Brigham Minerals operates in one segment: oil and natural gas exploration and production. Brigham Resources has historically owned and operated two distinct lines of business through its subsidiaries: • the Minerals Business through the Minerals Subsidiaries; and • an upstream oil and gas exploration and production business (the “Upstream Business”) in the Southern Delaware Basin of West Texas (including interests in certain related gathering systems) through Brigham Resources Operating, LLC (“Brigham Operating”). In February 2017, Brigham Operating completed the sale of substantially all of its oil and natural gas properties to an unrelated third-party purchaser, following which Brigham Operating’s only material assets consisted of an ownership interest in Oryx Southern Delaware Holdings, LLC (“Oryx”), an entity that operates a crude oil gathering system located in the southern Delaware Basin. Immediately prior to the IPO, Brigham Resources distributed to its members or their affiliates 100% of the equity interests in Brigham Operating. Subsequent to such distribution Brigham Resources no longer had any direct or indirect ownership interest in Brigham Operating. Accordingly, the accompanying consolidated financial statements of Brigham Minerals exclude the assets, liabilities and results of operations of Brigham Operating. Subsequent to the issuance of our December 31, 2017 consolidated financial statements, we corrected the amount of equity securities distributed, included in the supplemental disclosure of non-cash activity, from $37,988 to $20,092 (in thousands) for the year ended December 31, 2017 . Additionally, we corrected the presentation of gains and losses on sales of assets, and we included these gains and losses in other operating income for all periods presented. This resulted in a $94.6 million increase to previously reported operating expenses and a corresponding increase to previously reported operating income for the year ended December 31, 2017 . These corrections did not impact the previously reported consolidated balance sheet as of December 31, 2017 or statements of comprehensive income, members’ equity or cash flows and have been accounted for as immaterial corrections of errors.

Significant Accounting Policies

Significant Accounting Policies	12 Months Ended
	Dec. 31, 2019
Accounting Policies [Abstract]
Significant Accounting Policies	Significant Accounting Policies Emerging Growth Company Status As a company with less than $1.07 billion in revenues during its last fiscal year, Brigham Minerals qualifies as an “emerging growth company” as defined in the Jumpstart Our Business Startups Act of 2012 (the “JOBS Act”). An emerging growth company may take advantage of specified reduced reporting and other regulatory requirements. Brigham Minerals will remain an “emerging growth company” until as late as the last day of Brigham Minerals’ 2023 fiscal year, or until the earliest of (i) the last day of the fiscal year in which Brigham Minerals has $1.07 billion or more in annual revenues; (ii) the date on which Brigham Minerals becomes a “large accelerated filer” (the fiscal year-end on which the total market value of Brigham Minerals’ common equity securities held by non-affiliates is $700 million or more as of June 30); (iii) the date on which Brigham Minerals issues more than $1.0 billion of non-convertible debt over a three-year period. As a result of Brigham Minerals’ election to avail itself of certain provisions of the JOBS Act, the information that Brigham Minerals provides may be different than the information provided by other public companies. Use of Estimates The preparation of consolidated and combined financial statements in conformity 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 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 consolidated and combined financial statements are based on a number of significant estimates including quantities of oil, natural gas and NGLs 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’ reserve estimates are audited by Cawley, Gillespie & Associates, Inc. (“CG&A”), an independent petroleum engineering firm. 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 and revenue accruals. Cash and Cash Equivalents Brigham Minerals considers all highly liquid investments with an original maturity of three months or less to be cash equivalents. Restricted Cash Restricted cash includes cash that is contractually restricted for its use through an agreement with a non-related party. In 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 an increase in reported investing cash flow of $0.5 million for the year ended December 31, 2018 with a corresponding increase to the reported end of period cash balances. The December 31, 2018 accompanying statement of cash flow that was adjusted as a result of adoption of ASU 2016-18 is summarized below: Years Ended December 31, 2018 2018 (In thousands) As reported As adjusted Changes in restricted cash held in escrow for acquisitions $ (474 ) $ — Net cash provided by (used in) investing activities (195,742 ) (195,268 ) Increase in cash, cash equivalents and restricted cash $ 25,099 $ 25,573 Cash, cash equivalents and restricted cash, beginning of period 6,886 6,886 Cash, cash equivalents and restricted cash end of period 31,985 32,459 Accounts Receivables Receivables consist of royalty income due from operators for oil and gas sales to purchasers. Those purchasers remit payment for production to the operator of our properties and the operator, in turn, remits payment to us. Receivables from third parties for which we did not receive actual information, either due to timing delays or due to the unavailability of data at the time when revenues are recognized, are estimated. Volume estimates for wells with available historical actual data are based upon (i) the historical actual data for the months the data is available, or (ii) engineering estimates for the months the historical actual data is not available. We do not recognize revenues for wells with no historical actual data because we cannot conclude that it is probable that a significant revenue reversal will not occur in future periods. Pricing estimates are based upon actual prices realized in an area by adjusting the market price for the average basis differential from market on a basin-by-basin basis. Brigham Minerals routinely reviews outstanding balances, assesses the financial strength of its customers and records a reserve for amounts not expected to be fully recovered. We recorded an allowance for doubtful accounts of $0.6 million and $0.4 million for the year ended December 31, 2019 and December 31, 2018 , which was included in general and administrative expenses. At December 31, 2019 and 2018 , accounts receivable was comprised of the following: December 31, (In thousands) 2019 2018 Oil and gas sales $ 27,888 $ 19,769 Allowance for doubtful accounts (556 ) (382 ) Other 2,959 1,308 Total accounts receivables $ 30,291 $ 20,695 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 prior 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. For the year ended December 31, 2019 2018 2017 Occidental Petroleum Corp. 16 % 15 % — Continental Resources, Inc. 12 % 10 % 10 % XTO Energy, Inc. 10 % — — Noble Energy, Inc. 5 % 9 % 13 % 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. Investments in Equity Securities In January 2019, the Company adopted ASU 2016-01, Financial Instruments-Overall: Recognition and Measurement of Financial Assets and Financial Liabilities. The ASU changes to the current GAAP model primarily affects the accounting for equity investments, financial liabilities under the fair value option and the presentation and disclosure requirements for financial instruments. Under the new standard, all equity investments in unconsolidated entities (other than those accounted for using the equity method of accounting) will generally be measured at fair value through earnings. There will no longer be an available-for-sale classification (changes in fair value reported in other comprehensive income) for equity securities with readily determinable fair values. Prior to January 2019, Brigham Minerals classified its equity securities as available-for-sale, and as such, they were carried at fair value. Changes in fair value of available-for-sale securities were reported as a component of other comprehensive income. Losses were recognized within the consolidated and combined statement of operations when a decline in value is determined to be other-than-temporary. Brigham Minerals used the average cost method to determine the realized gain or loss for each sale or distribution of available-for-sale securities. Financial Instruments Brigham Minerals’ financial instruments consist of cash and cash equivalents, receivables, payables, derivative assets and liabilities, investments in equity securities and long-term debt. The carrying amounts of cash and cash equivalents, receivables and payables approximate fair value due to the highly liquid or short-term nature of these instruments. The equity securities are publicly traded and are valued using quoted market prices. The fair values of Brigham Minerals’ derivative assets and liabilities are based on 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, volatility factors and credit risk adjustments. The carrying amount of long-term debt associated with borrowings outstanding under Brigham Minerals’ revolving credit facility approximates fair value as borrowings bear interest at variable market rates. See “Note 5.—Derivative Instruments,” “Note 6.—Fair Value Measurements” and “Note 7.—Long-Term Debt.” Derivative Instruments In the normal course of business, Brigham Minerals is exposed to certain risks, including changes in the prices of oil, natural gas and NGLs and interest rates. Brigham Minerals has occasionally entered into derivative contracts to manage its exposure to these risks. Brigham Minerals’ risk management activity is generally accomplished through over-the-counter derivative contracts with large financial institutions. Brigham Minerals does not enter into derivative instruments for speculative purposes. Derivative instruments are recognized at fair value. If a right of offset exists under master netting arrangements and certain other criteria are met, derivative assets and liabilities with the same counterparty are netted on the consolidated and combined balance sheets. Brigham Minerals does not specifically designate derivative instruments as cash flow hedges, even though they reduce its exposure to changes in oil and natural gas prices; therefore, gains and losses arising from changes in the fair value of derivatives are recognized on a net basis in the accompanying consolidated and combined statements of operations within (loss) gain on derivative instruments, net. 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 and certain related employee costs are capitalized into a full cost pool. Costs associated with general corporate activities are expensed in the period incurred. Capitalized costs are amortized using the units-of-production method. Under this method, the provision for depletion is calculated by multiplying total production for the period by a depletion rate. The depletion rate is determined by dividing the total unamortized cost base by net equivalent proved reserves at the beginning of the period. Costs associated with unevaluated properties are excluded from the amortizable cost base until a determination has been made as to the existence of proved reserves. Unevaluated properties are reviewed periodically to determine whether the costs incurred should be reclassified to the full cost pool and subjected to amortization. The costs associated with unevaluated properties primarily consist of acquisition costs and capitalized general and administrative costs. Unevaluated properties are assessed for impairment on an individual basis or as a group if properties are individually insignificant. The assessment includes consideration of the following factors, among others: expectation of future drilling activity; past drilling results and activity; geological and geophysical evaluations; the assignment of proved reserves; and the economic viability of development if proved reserves are assigned. During any period in which these factors indicate an impairment, the cumulative acquisition costs incurred to date for such property are transferred to the full cost pool and are then subject to amortization. There was no impairment recorded for unevaluated properties in 2019 , 2018 and 2017 . Sales and abandonments of oil and natural gas properties being amortized are accounted for as adjustments to the full cost pool, with no gain or loss recognized unless the adjustments would significantly alter the relationship between capitalized costs and proved reserves. A significant alteration would not ordinarily be expected to occur upon the sale of reserves involving less than 25% of the reserve quantities of a cost center. Natural gas volumes are converted to barrels of oil equivalent (Boe) at the rate of six thousand cubic feet (Mcf) of natural gas to one barrel (Bbl) of oil. This convention is not an equivalent price basis and there may be a large difference in value between an equivalent volume of oil versus an equivalent volume of natural gas. 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, plus the lower of cost or fair value of unevaluated properties (the ceiling limitation). A ceiling limitation is calculated at each reporting period. If total capitalized costs, net of accumulated DD&A are greater than the ceiling limitation, a write-down or impairment of the full cost pool is required. A write-down of the carrying value of the full cost pool 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. Once incurred, a write-down cannot be reversed at a later date. The ceiling limitation calculation is prepared using the 12-month first day of the month oil and natural gas average prices, as adjusted for basis or location differentials, held constant over the life of the reserves (net wellhead prices). If applicable, these net wellhead prices would be further adjusted to include the effects of any fixed price arrangements for the sale of oil and natural gas. As of December 31, 2019 , 2018 and 2017 , the full cost ceiling value of our reserves was calculated based on the unweighted arithmetic average first-day-of-the-month price for the twelve months ended December 31, 2019 , 2018 and 2017 of $55.65 , $65.66 , and $51.34 , respectively, per barrel for oil, adjusted by area for energy content, transportation fees and regional price differentials, and the unweighted arithmetic average first-day-of-the-month price for the twelve months ended December 31, 2019 , 2018 and 2017 of $2.60 , $3.12 , and $2.99 , respectively, per MMBtu for natural gas, adjusted by area for energy content, transportation fees and regional price differentials. Using these prices, the net book value of oil and natural gas was below the ceiling limitation and no write-off was necessary. Share-Based Compensation Brigham Minerals accounts for its share-based compensation including grants of the Incentive Units, restricted stock awards, time-based restricted stock units and performance-based stock units in the consolidated and combined statements of operations based on their estimated fair values at grant date. Brigham Minerals uses a Monte Carlo simulation to determine the fair value of performance-based stock units. Brigham Minerals recognizes expense on a straight-line basis over the vesting period of the respective grant, which is generally the requisite service period. Brigham Minerals capitalizes a portion of the share-based compensation cost to oil and gas properties on the consolidated and combined balance sheets. Share-based compensation expense is included in general and administrative expenses in Brigham Minerals’ consolidated and combined statements of operations included within this Annual Report. There was approximately $19.3 million of unamortized compensation expense relating to outstanding awards at December 31, 2019 , a portion of which will be capitalized. The unrecognized share-based compensation expense will be recognized on a straight-line basis over the remaining vesting periods of the awards. Brigham Minerals accounts for forfeitures as they occur. Earnings Per Share Brigham Minerals uses the “if-converted” method to determine the potential dilutive effect of its Class B common stock and the treasury stock method to determine the potential dilutive effect of outstanding Incentive Units, RSAs, RSUs, and PSUs. Employee Benefit Plan We sponsor a 401(k) tax-deferred savings plan for our employees. We match 100% of each employee’s contributions, up to 6% of the employee’s total compensation. Brigham Resources may also contribute additional amounts at its discretion. Brigham Resources contributed $0.3 million , $0.2 million and $0.1 million , to the 401(k) plan for each of the years ended December 31, 2019 , 2018 , and 2017 . Income Taxes Brigham Minerals accounts for income taxes using the asset and liability method. Deferred tax assets and liabilities are recognized for the future tax consequences attributable to differences between the financial statement carrying amounts of existing assets and liabilities and their respective tax bases. Deferred tax assets and liabilities are calculated by applying existing tax laws and the rates expected to apply to taxable income in the years in which those temporary differences are expected to be recovered or settled. The effect of a change in tax rates on deferred tax assets and liabilities is recognized in income in the period that includes the enactment date. Brigham Minerals periodically assesses whether it is more likely than not that it will generate sufficient taxable income to realize its deferred income tax assets, including net operating losses. In making this determination, Brigham Minerals considers all available positive and negative evidence and makes certain assumptions. Brigham Minerals considers, among other things, its deferred tax liabilities, the overall business environment, its historical earnings and losses, current industry trends and its outlook for future years. Temporary Equity Brigham Minerals accounts for the Original Owners’ 40.2% interest in Brigham LLC as temporary equity as a result of certain redemption rights held by the Original Owners as discussed in “Note 9.—Temporary Equity.” As such, the Company adjusts temporary equity to its maximum redemption amount at the balance sheet date, if higher than the carrying amount. The redemption amount is based on the 10-day volume-weighted average closing price (“VWAP”) of Class A shares at the end of the reporting period. Changes in the redemption value are recognized immediately as they occur, as if the end of the reporting period was also the redemption date for the instrument, with an offsetting entry to additional paid-in capital. Revenue from Contracts with Customers On December 31, 2019 , the Company adopted Accounting Standards Codification Topic 606, Revenue from Contracts with Customers, ("ASC 606") using the modified retrospective approach, which only applied to contracts that were in effect as of the date of adoption. The adoption did not require an adjustment to opening retained earnings for the cumulative effect adjustment and did not impact the Company’s previously reported results of operations, nor its ongoing consolidated and combined balance sheets, statements of cash flow or statements of changes in shareholders' and members' equity. Overall, there were no material changes in the timing of the satisfaction of the Company’s performance obligations or the allocation of the transaction price to its performance obligations in applying the guidance in ASC 606 as compared to legacy U.S. GAAP. Oil and natural gas sales Oil, natural gas and NGLs sales revenues are generally 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. All of the Company’s oil, natural gas and NGL sales are made under contracts with customers (operators). The performance obligations for the Company’s contracts with customers are satisfied at a point in time through the delivery of oil and natural gas to its customers. Accordingly, the Company’s contracts do not give rise to contract assets or liabilities. The Company typically receives payment for oil, natural gas and NGL sales within 60 days of the month of delivery, which can extend up to 9 months after initial production from the well. The Company’s contracts for oil, natural gas and NGL sales are standard industry contracts that include variable consideration based on the monthly index price and adjustments that may include counterparty-specific provisions related to volumes, price differentials, discounts and other adjustments and deductions. As each unit of product represents a separate performance obligation and the consideration is variable as it relates to oil and natural gas prices, Brigham Minerals recognizes revenue from oil and natural gas sales using the allocation exception for variable consideration in ASC 606. Lease bonus and other income Brigham Minerals also earns revenue from lease bonuses, delay rentals, and right-of-way payments. We generate lease bonus revenue by leasing our mineral interests to exploration and production companies. A lease agreement represents our contract with a customer and generally transfers the rights to any oil or natural gas discovered, grants us a right to a specified royalty interest, and requires that drilling and completion operations commence within a specified time period. The Company recognizes lease bonus revenues when the lease agreement has been executed, payment has been received, and the Company has no further obligation to refund the payment. At the time Brigham Minerals executes the lease agreement, Brigham Minerals expects to receive the lease bonus payment within a reasonable time, though in no case more than one year, such that Brigham Minerals has not adjusted the expected amount of consideration for the effects of any significant financing component per the practical expedient in ASC 606. Brigham Minerals also recognizes revenue from delay rentals to the extent drilling has not started within the specified period, payment has been received, and we have no further obligation to refund the payment. Right-of-way payments are recorded by the Company when the agreement has been executed, payment is determined to be collectable, and the Company has no further obligation to refund the payment. Allocation of transaction price to remaining performance obligations Oil and natural gas sales Brigham Minerals’ right to royalty income does not originate until production occurs and, therefore, is not considered to exist beyond each day’s production. Therefore, there are no remaining performance obligation under any of our royalty income contracts. Lease bonus and other income Given that Brigham Minerals does not recognize lease bonus or other income until a lease agreement has been executed, at which point its performance obligation has been satisfied, and payment is received, Brigham Minerals does not record revenue for unsatisfied or partially unsatisfied performance obligations as of the end of the reporting period. Prior-period performance obligations Brigham Minerals records revenue in the month production is delivered to the purchaser. As a non-operator, Brigham Minerals has limited visibility into the timing of when new wells start producing and production statements may not be received for 30 to 90 days or more after the date production is delivered. As a result, Brigham Minerals 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 expected sales volumes and prices for these properties are estimated and recorded within the Accounts receivable line item in the accompanying consolidated and combined balance sheets. 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 years ended December 31, 2019 , 2018 and 2017 , revenue recognized in the reporting periods related to performance obligations satisfied in prior reporting periods was immaterial. Debt Issuance Cost Other assets include capitalized debt issuance costs of $1.2 million , net of accumulated amortization of $0.2 million as of December 31, 2019 . As of December 31, 2018 , capitalized debt issuance costs of $4.3 million , net of accumulated amortization of $0.3 million , was included in long-term debt on the consolidated and combined balance sheets. Debt issuance costs were incurred in connection with establishing and amending credit facilities for Brigham Resources and are amortized over the term of the credit facilities using the straight-line method, which approximates the effective interest rate method. Amortization expense for debt issue costs was $0.4 million , $0.7 million and $0.1 million for the years ended December 31, 2019 , 2018 , and 2017 . On July 27, 2018, the prior revolving credit facility was terminated and replaced with a new term loan facility. See further discussion in "Note 7.—Long-Term Debt" in our consolidated and combined financial statements. Recently Issued Accounting Standards Not Yet Adopted Brigham Minerals’ status as an emerging growth company under Section 107 of the JOBS Act 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, it 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, 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, 2021 and interim periods within the fiscal year ending December 31, 2022 and early adoption is permitted. We are currently evaluating the impact that the adoption of this update will have on our consolidated and combined financial statements and related disclosures.

Oil and Gas Properties

Oil and Gas Properties	12 Months Ended
	Dec. 31, 2019
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 consisted of the following: December 31, (In thousands) 2019 2018 Oil and gas properties, at cost, using the full cost method of accounting: Not subject to depletion $ 291,664 $ 228,151 Subject to depletion 449,061 289,851 Total oil and gas properties, at cost 740,725 518,002 Less accumulated depreciation, depletion, and amortization (61,103 ) (27,628 ) Total oil and gas properties, net $ 679,622 $ 490,374 Costs not subject to depletion are as follows, by the year in which such costs were incurred: By Year: Total 2019 2018 2017 2016 Prior (In thousands) Property Acquisition costs $ 291,664 $ 80,964 $ 73,002 $ 66,139 $ 10,745 $ 60,814 Capitalized costs are depleted on a unit of production basis based on proved oil and natural gas reserves. Depletion expense was $30.4 million , $13.3 million and $6.2 million for the years ended December 31, 2019 , 2018 and 2017 , respectively. Average depletion of proved properties was $11.22 , $9.38 and $7.25 per Boe for the years ended December 31, 2019 , 2018 and 2017 , respectively. The costs associated with unevaluated properties primarily consist of acquisition costs and capitalized general and administrative costs. 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 $7.4 million , $2.7 million and $2.1 million for the years ended December 31, 2019 , 2018 and 2017 , respectively.

Acquisitions and Divestitures

Acquisitions and Divestitures	12 Months Ended
	Dec. 31, 2019
Business Combinations [Abstract]
Acquisitions and Divestitures	Acquisitions and Divestitures In 2019, Brigham Minerals adopted ASU 2017-01, Clarifying the Definition of a Business, using a prospective approach. This guidance assists in determining whether a transaction should be accounted for as an acquisition of assets or as a business. This ASU provides a screen that when substantially all of the fair value of the gross assets acquired, or disposed of, are concentrated in a single identifiable asset, or a group of similar identifiable assets, the set will not be considered a business. If the screen is not met, a set must include an input and a substantive process that together significantly contribute to the ability to create an output to be considered a business. The adoption of the new standard did not have a material impact on the consolidated and combined financial statements. During the years ended December 31, 2019 and 2018 , Brigham Minerals entered into a number of individually insignificant acquisitions of mineral and royalty interests from various sellers in Texas, Oklahoma, Colorado, New Mexico, and North Dakota, as reflected in the table 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 were funded with borrowings under its Owl Rock credit facility, our revolving credit facility and proceeds from the IPO. Assets Acquired Cash Consideration Paid (In thousands) Evaluated Unevaluated Twelve months ended December 31, 2019 $ 140,025 $ 78,093 $ 218,118 Twelve months ended December 31, 2018 $ 115,589 $ 81,367 $ 196,956 In August 2017, Brigham Minerals acquired certain mineral and royalty interests in the Delaware Basin for $29.2 million . Brigham Minerals funded the acquisition with capital contributions. The allocation of the purchase price was $20.5 million to unevaluated properties and $8.7 million to evaluated properties. In addition, during 2017, Brigham Minerals entered into a number of individually insignificant acquisitions. The change in the oil and natural gas property balance is comprised of individually insignificant payments for acquisitions of minerals, land brokerage costs and capitalized general and administrative capital expenditures. On February 28, 2017, Brigham Operating and Brigham Resources Midstream, LLC, wholly owned subsidiaries of Brigham Resources, closed on the sale of substantially all of their Southern Delaware Basin leasehold and related assets, including certain mineral and royalty interests owned by Brigham Resources, to a third-party public entity. The proceeds for mineral and royalty interests represented $156.7 million of the net adjusted sales price and consisted of cash of $111.1 million and shares valued at $45.6 million The mineral and royalty interests sold represented approximately 12% in aggregate of Brigham Minerals’ total proved reserves as of December 31, 2016. As a result of the sale, the relationship between capitalized costs and proved reserves was altered significantly and Brigham Minerals recorded a gain of $94.6 million . Reserve and Related Financial Data (SMOG) -Unaudited Oil and Natural Gas Reserves Proved reserves represent quantities of oil, natural gas and NGLs which, by analysis of geoscience and engineering data, can be estimated with reasonable certainty to be recoverable in the future from known reservoirs under existing economic conditions, operating methods and government regulations. Proved developed reserves are proved reserves which can be expected to be recovered through existing wells with existing equipment, infrastructure and operating methods. Proved reserves were estimated in accordance with guidelines established by the SEC, which require that reserve estimates be prepared under existing economic and operating conditions based upon the 12-month unweighted average of the first-day-of-the-month prices. The reserves at December 31, 2019 and December 31, 2018 presented below were audited by CG&A and the reserves at December 31, 2017 presented below were prepared by CG&A. Estimates of proved reserves are inherently imprecise and are continually subject to revision based on production history, results of additional exploration and development, price changes and other factors. The reserves are located in various fields in Texas, New Mexico, Oklahoma, Colorado, Wyoming, North Dakota, Montana and Pennsylvania. All of the proved reserves are located in the continental United States. Crude Oil (MBbl) Natural Gas (Mmcf) NGL (MBbl) Total (MBoe) Proved reserve quantities, December 31, 2016 7,174 22,991 2,356 13,363 Sales of minerals-in-place (1,291 ) (815 ) (200 ) (1,627 ) Extensions and discoveries 1,548 6,012 709 3,259 Acquisitions 2,141 9,380 1,116 4,820 Revisions of previous estimates (394 ) 2,601 108 147 Production (454 ) (1,768 ) (109 ) (858 ) Proved reserve quantities, December 31, 2017 8,724 38,401 3,980 19,104 Sales of minerals-in-place — — — — Extensions and discoveries 1,765 5,285 562 3,208 Acquisitions 3,669 13,862 1,374 7,354 Revisions of previous estimates (390 ) (3,245 ) (577 ) (1,508 ) Production (777 ) (2,507 ) (222 ) (1,417 ) Proved reserve quantities, December 31, 2018 12,991 51,796 5,117 26,741 Sales of minerals-in-place (182 ) (697 ) (110 ) (409 ) Extensions and discoveries 1,997 7,780 817 4,110 Acquisitions 4,256 13,053 1,218 7,651 Revisions of previous estimates (586 ) (5,495 ) (797 ) (2,299 ) Production (1,515 ) (4,707 ) (407 ) (2,706 ) Proved reserve quantities, December 31, 2019 16,961 61,730 5,838 33,088 Proved reserve quantities at December 31, 2019 attributable to temporary equity 6,812 24,792 2,345 13,289 Proved developed reserve quantities: December 31, 2017 2,804 13,028 1,185 6,160 December 31, 2018 6,067 21,735 1,898 11,588 December 31, 2019 9,924 33,232 2,494 17,957 Proved developed reserves at December 31, 2019 attributable to temporary equity 3,986 13,346 1,002 7,212 Proved undeveloped reserve quantities: December 31, 2017 5,920 25,373 2,795 12,944 December 31, 2018 6,924 30,061 3,219 15,153 December 31, 2019 7,037 28,498 3,344 15,131 Proved undeveloped reserves at December 31, 2019 attributable to temporary equity 2,826 11,445 1,343 6,077 Changes in proved reserves that occurred during 2019 were primarily due to: • the acquisition of additional mineral interests located in the Permian, Anadarko, DJ and Williston Basins in multiple transactions, which included 7,242 MBoe of additional proved reserves which is comprised of 7,651 MBoe of acquired proved reserves and divestiture of 409 MBoe of proved reserves within the year; • well additions extensions and discoveries of approximately 4,110 MBoe, as approximately 900 gross horizontal well locations were converted from probable, possible and contingent resources to proved, due to continuous activity and delineation of additional zones on our mineral and royalty interests; and • net volume revisions of approximately 2,299 MBoe. These revisions were comprised of 902 MBoe of negative revisions attributable to pricing as well as approximately 1,397 MBoe attributable to operator development timing, unit configuration and EUR adjustments to existing proved locations. Changes in proved reserves that occurred during 2018 were primarily due to: • the acquisition of additional mineral and royalty interests located in the Permian, DJ, Anadarko and Williston Basins in multiple transactions, which included 7,354 MBoe of additional proved reserves; • well additions, extensions and discoveries of approximately 3,208 MBoe, as 555 gross horizontal well locations were converted from probable, possible and contingent resources to proved, due to continuous activity and delineation of additional zones on our mineral and royalty interests; and • net negative volume revisions of approximately 1,508 MBoe. These revisions were comprised of 536 MBoe of positive revisions attributable to pricing and were offset by negative revisions of 1,100 MBoe attributable to operator development timing as well as 944 MBoe of revisions associated with unit configuration and EUR adjustments to existing proved locations. Changes in proved reserves that occurred during 2017 were primarily due to: • the acquisition of additional mineral and royalty interests located in the Permian, DJ, Anadarko and Williston Basins in multiple transactions, which included 4,820 MBoe of additional proved reserves; • well additions, extensions and discoveries of approximately 3,259 MBoe, as 854 horizontal well locations were converted from probable, possible and contingent resources to proved, due to continuous activity and delineation of additional zones on our mineral and royalty interests; • the divestiture of 1,627 MBoe through one sale of mineral and royalty interests located in the Permian Basin; and • positive volume revisions of approximately 2,581 MBoe attributable primarily to increased recovery in close proximity to our mineral and royalty interests, partially offset by negative revisions of approximately 2,434 MBoe, attributable primarily to operator development timing and revision of existing proved locations. Standardized Measure of Discounted Future Net Cash Flows Guidelines prescribed in FASB’s Accounting Standards Codification (“ASC”) Topic 932 Extractive Industries—Oil and Gas, have been followed for computing a standardized measure of future net cash flows and changes therein relating to estimated proved reserves. Future cash inflows are determined by applying prices and costs, including transportation, quality, and basis differentials, to the year-end estimated quantities of oil, natural gas and NGLs to be produced in the future. The resulting future net cash flows are reduced to present value amounts by applying a ten percent annual discount factor. The assumptions used to compute the standardized measure are those prescribed by the FASB and the SEC. These assumptions do not necessarily reflect Brigham Resources’ expectations of actual revenues to be derived from those reserves, nor their present value. The limitations inherent in the reserve quantity estimation process, as discussed previously, are equally applicable to the standardized measure computations since these reserve quantity estimates are the basis for the valuation process. Reserve estimates are inherently imprecise and estimates of new discoveries and undeveloped locations are more imprecise than estimates of established proved producing oil and gas properties. Accordingly, these estimates are expected to change as future information becomes available. The following summary sets forth the future net cash flows relating to proved oil and gas reserves based on the standardized measure prescribed in ASC Topic 932: For the Year Ended December 31, (In thousands) 2019 2018 2017 Future crude oil, natural gas, and NGL sales $ 1,042,118 $ 1,049,141 $ 595,874 Future severance tax and ad valorem taxes (73,627 ) (70,248 ) (40,225 ) Future income tax expense (143,599 ) (144,421 ) (1,151 ) Future net cash flows 824,892 834,472 554,498 10% annual discount (359,258 ) (391,013 ) (238,030 ) Standardized measure of discounted future net cash flows $ 465,634 $ 443,459 $ 316,468 Standardized measure of discounted future net cash flows attributable to temporary equity $ 186,999 $ — $ — The following prices were used in the determination of standardized measure: For the Year Ended December 31, 2019 2018 2017 Oil (per Bbl) $ 51.01 $ 61.31 $ 47.80 Natural gas (per Mcf) 1.51 2.51 2.74 NGLs (per Bbl) 14.39 23.98 18.56 These prices were based on the 12-month arithmetic average first-of-month West Texas Intermediate (“WTI”) price of oil and Henry Hub price of natural gas. The NGL pricing varied by basin at 13% to 30% of WTI. All prices have been adjusted for transportation, quality, basis differentials and post-production costs. The principal sources of change in the standardized measure of discounted future net cash flows are: For the Year Ended December 31, (In thousands) 2019 2018 2017 Standardized measure of discounted future net cash flows, beginning of the year $ 443,459 $ 316,468 $ 185,752 Changes in the year resulting from: Sales, less production costs (86,492 ) (52,278 ) (26,711 ) Revisions of previous quantity estimates (41,539 ) (22,942 ) 4,894 Extensions, discoveries, and other additions 69,057 71,668 56,511 Net change in prices and production costs (99,660 ) 71,770 30,565 Accretion of discount 51,949 31,713 18,612 Purchase of reserves in place 137,819 148,580 79,190 Divestitures of reserves in place (5,783 ) — (26,742 ) Net change in taxes (5,739 ) (75,369 ) (298 ) Timing differences and other 2,563 (46,151 ) (5,305 ) Standardized measure of discounted future net cash flows, end of the year $ 465,634 $ 443,459 $ 316,468 Capitalized oil and natural gas costs The aggregate amounts of costs capitalized for oil and natural gas producing activities and related aggregate amounts of accumulated depletion follow: For the Year Ended December 31, (In thousands) 2019 2018 2017 Oil and gas properties, at cost, using full cost method of accounting: Not subject to depletion $ 291,664 $ 228,151 $ 168,691 Subject to depletion 449,061 289,851 152,354 Total oil and gas properties, at cost 740,725 518,002 321,045 Less accumulated depreciation, depletion, and amortization (61,103 ) (27,628 ) (14,210 ) Total oil and gas properties, net $ 679,622 $ 490,374 $ 306,835 Costs incurred in oil and natural gas activities The following costs were incurred in oil and natural gas producing activities: For the Year Ended December 31, (In thousands) 2019 2018 2017 Acquisition of properties Unevaluated $ 78,093 $ 59,460 $ 50,224 Evaluated 140,025 137,496 51,862 Total $ 218,118 $ 196,956 $ 102,086

Derivative Instruments

Derivative Instruments	12 Months Ended
	Dec. 31, 2019
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 our revolving credit facility, as discussed in “Note 1.—Business and Basis of Presentation.” Brigham Minerals no longer has oil derivative contracts in place as of December 31, 2019 . Prior to December 31, 2019 , we had certain oil swap contracts based on the New York Mercantile Exchange ("NYMEX") futures index. Our derivative instruments were subject to master netting arrangements and are presented on a net basis in our consolidated and combined balance sheets. The following table summarizes the location and fair value of our derivative instruments as of December 31, 2018 (in thousands): Derivative Instruments Balance Sheet Classification Gross Amount Recognized Less Group Amount of Offset Net Amount Recognized (In thousands) As of December 31, 2018 Derivative assets: Commodity swaps Current derivative assets $ 1,057 $ — $ 1,057 The following table summarizes Brigham Minerals' (loss) gain on derivative instruments, net on its consolidated and combined statement of operations for the years ended December 31, 2019 , 2018 and 2017 (in thousands): Years Ended December 31, (In thousands) 2019 2018 2017 Realized gain (loss) $ 470 $ (754 ) $ — Unrealized gain (loss) (1,038 ) 1,178 (121 ) (Loss) gain on derivative instruments, net $ (568 ) $ 424 $ (121 )

Fair Value Measurements

Fair Value Measurements	12 Months Ended
	Dec. 31, 2019
Fair Value Disclosures [Abstract]
Fair Value Measurements	Fair Value Measurements We 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 Brigham Minerals had no financial assets or liabilities that were accounted for at fair value on a recurring basis at December 31, 2019 . Brigham Minerals' financial assets and liabilities that were accounted for at fair value on a recurring basis at December 31, 2018 are as follows (in thousands): December 31, 2018 Level 1 Level 2 Level 3 Total Assets-commodity derivative instruments $ — $ 1,057 $ — $ 1,057 Level 1 equity securities represent publicly traded securities valued using quoted market prices. During 2017, Brigham Minerals received shares of publicly traded securities as partial proceeds from the sale of oil and gas properties discussed in "Note 4 - Acquisitions and Divestitures" and classified them as available for sale. As of December 31, 2017, Brigham Minerals had remaining available for sale securities with aggregate cost basis of $3.4 million and unrealized gains of $0.7 million , which is included in accumulated other comprehensive income (“AOCI”). The fair value of available for sale securities held by Brigham Minerals as of December 31, 2017 was $4.1 million and is included in investment in equity securities on the accompanying consolidated and combined balance sheets. During the twelve months ended December 31, 2018 , Brigham Resources had unrealized gains on available for sale securities of $0.1 million . In addition, during the twelve months ended December 31, 2018 , Brigham Resources distributed securities valued at $3.3 million and sold the remaining securities for $0.9 million restricted for payment of tax liabilities resulting from the sale of oil and gas properties. As a result of the distribution and sale of securities, gains of $0.8 million were reclassified out of AOCI and included in gain on sale of equity investments on the accompanying consolidated and combined statement of operations. Our derivative instruments consist of oil swaps carried at fair value. 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 Resources had no transfers into or out of Level 1 and no transfers into or out of Level 2 for the twelve months ended December 31, 2019 , 2018 and 2017 . Assets and Liabilities Measured at Fair Value on a Non-Recurring Basis Certain nonfinancial 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 operating and development costs, future commodity prices and a risk-adjusted discount rates, and are classified within Level 3. Fair Value of Other Financial Instruments The carrying value of cash, trade and other receivables and trade payables are considered to be representative of their respective fair values due to the short-term nature of these instruments. The carrying amount of debt outstanding pursuant to our term loan and our prior revolving credit facility approximates fair value as interest rates on these instruments approximate current market rates. We categorized our long-term debt within Level 2 of the fair value hierarchy.

Long-Term Debt

Long-Term Debt	12 Months Ended
	Dec. 31, 2019
Debt Disclosure [Abstract]
Long-Term Debt	Long-Term Debt Prior Revolving Credit Facility Prior to its termination on July 27, 2018, the Minerals Subsidiaries maintained a secured revolving credit facility with a syndicate of financial institutions (the “prior revolving credit facility”), which had been amended periodically. The prior revolving credit facility had a commitment of $150 million , and a borrowing base and outstanding borrowings of $70 million each as of July 27, 2018. Brigham Minerals terminated the prior revolving credit facility on July 27, 2018 with proceeds from the Owl Rock credit facility (as defined below). Additionally, during the third quarter of 2018, Brigham Resources wrote off approximately $0.3 million of unamortized debt issuance costs that were related to the prior revolving credit facility. Owl Rock Credit Facility On July 27, 2018, the prior revolving credit facility was terminated in conjunction with the entry into a new 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 the 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 (“DDTL”) 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 paid off using a portion of the net 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 (the “closing date”) 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 new 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 was subject to redetermination on February 1, 2020, and semi-annually thereafter on May 1 and November 1 of each year, commencing with May 1, 2020. 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. As of December 31, 2019 , the borrowing base was $150.0 million and we had no outstanding borrowings under our revolving credit facility. On February 25, 2020 , the borrowing base on our revolving credit facility was increased to $180.0 million . See "Note.14—Subsequent Events" to the consolidated and combined financial statements of Brigham Minerals included elsewhere in this Annual Report for further discussion. 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, or if available to all lenders, twelve months. Interest is payable in arrears at the end of each interest period, but no less frequently than quarterly. A commitment fee is payable quarterly in arrears on the daily undrawn available commitments under our revolving credit facility in an amount ranging from 0.375% to 0.500% based on utilization of our revolving credit facility. Our revolving credit facility is subject to other customary fee, interest and expense reimbursement provisions. 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 December 31, 2019 , we were in compliance with all covenants in accordance with our revolving credit facility.

Shareholders' and Members' Equi

Shareholders' and Members' Equity	12 Months Ended
	Dec. 31, 2019
Equity [Abstract]
Shareholders' and Members' Equity	Shareholders' and Members' Equity Shareholders' Equity Class A Common Stock Brigham Minerals has approximately 34.0 million shares of its Class A common stock outstanding as of December 31, 2019 . 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 has approximately 22.8 million shares of its Class B common stock outstanding as of December 31, 2019 . 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 generally do not have any right to receive dividends or distributions upon a liquidation or winding up of Brigham Minerals. 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. 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 year ended December 31, 2019 , the Class B common stock, the Incentive Units, RSAs and RSUs were not recognized in dilutive EPS calculations as the effect would have been antidilutive. There were no shares of Class A or Class B common stock outstanding for the years ended December 31, 2018 and 2017 , therefore no earnings per share information has been presented for those periods. For the year ended December 31, 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 December 31, 2019 . The following table reflects the allocation of net income (loss) to common stockholders and EPS computations for the period indicated based on a weighted average number of common stock outstanding for the period: Years Ended December 31, (In thousands, except per share data) 2019 2018 2017 Basic EPS Numerator: Basic net income attributable to Brigham Minerals, Inc. shareholders $ 6,901 $ — $ — Less: net income attributable to Brigham Minerals, Inc. shareholders pre-IPO (848 ) — — Basic net income attributable to Brigham Minerals, Inc. shareholders post-IPO (1) 6,053 — — Denominator: Basic weighted average shares outstanding (1) 22,870 — — Basic EPS attributable to Brigham Minerals, Inc. shareholders $ 0.26 $ — $ — Diluted EPS Numerator: Basic net income attributable to Brigham Minerals, Inc. shareholders post-IPO (1) 6,053 — — Diluted net income attributable to Brigham Minerals, Inc. shareholders 6,053 — — Denominator: Basic weighted average shares outstanding (1) 22,870 — — Effect of dilutive securities: Diluted weighted average shares outstanding 22,870 — — Diluted EPS attributable to Brigham Minerals, Inc. shareholders $ 0.26 $ — $ — (1) - Represents earnings per share of Class A common stock and weighted average shares of Class A common stock for the period from April 17, 2019 through December 31, 2019, the period following the IPO. As of December 31, 2019 , there were 753,546 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 year ended December 31, 2019 , because the performance goals had not been met, assuming the end of the reporting period was the end of the contingency period. Members' Equity Series A Units On April 5, 2013, Brigham Resources received subscriptions to purchase 64,840,000 Series A Units at a price of $10 per unit. The Series A Units may be purchased within a five -year period from April 5, 2013 to April 5, 2018. Brigham Resources’ management had the right, subject to the approval of its Board of Directors and certain of its investors, to send notice to the Series A Unit holders specifying the need for additional capital. All outstanding Series A Units were sold prior to December 31, 2015. Series A Unit holders are entitled to one vote per share on voting matters and have certain rights with respect to distributions declared by Brigham Resources’ Board of Directors pursuant to a distribution waterfall set forth in the Brigham Resources LLC Agreement. The Series A Units have a liquidation preference equal to total invested capital, plus a 7% cumulative return, compounded daily. Series A-M Units Brigham Resources has authorized 460,000 Series A-M Units for issuance at a price of $10 per unit. On April 5, 2013, 160,000 Series A-M Units were issued in connection with the formation of Brigham Resources. The remaining 300,000 Series A-M Units were available for issuance to a related party if certain capital call funding thresholds were met (the “Contingent A-M Units”) and subject to achievement of certain time-based vesting conditions. During 2014, all 300,000 Contingent A-M Units were issued, and as of December 31, 2017, 100% of the Series A-M Units were vested. Series A-M Unit holders have no voting rights and have certain rights with respect to distributions declared by Brigham Resources’ Board of Directors pursuant to a distribution waterfall set forth in the Brigham Resources LLC Agreement. The Series A-M Units have a liquidation preference equal to the total invested capital, plus a 7% cumulative return, compounded daily. Series A-Z Units On May 8, 2015, Brigham Resources received subscriptions to purchase 41,176,471 Series A-Z Units at a price of $8.50 per unit. The Series A-Z Units were available to be issued at any time between May 8, 2015 and April 5, 2018. Brigham Resources’ management had the right, subject to the approval of its Board of Directors and certain of its investors, to send notice to the Series A-Z Unit holders specifying the need for additional capital (a “Series A-Z Capital Call”). During the years ended December 31, 2018 and 2017, Brigham Resources issued Series A-Z Capital Calls for gross proceeds of $45,999,995 , representing the sale of 5,411,764 Series A-Z Units, and of $37,000,002 , representing the sale of 4,352,941 Series A-Z Units, respectively. Series A-Z Unit holders are entitled to one vote per share on voting matters and have certain rights with respect to distributions declared by Brigham Resources’ Board of Directors pursuant to a distribution waterfall set forth in the Brigham Resources LLC Agreement. The Series A-Z Units have a liquidation preference equal to the total invested capital, plus a 7% cumulative return, compounded daily. In connection with the IPO, all of the outstanding membership interests in Brigham Resources were converted into a single class of common units in Brigham Resources and Brigham Resources became a wholly-owned subsidiary. Restricted Units Brigham Resources has authorized 120,000 restricted incentive units (“Restricted Units”) for issuance to management, independent directors, employees and consultants. The Restricted Units vest 20% upon issuance and 20% on each of the four anniversary dates following the date of issuance. The Restricted Units participate in certain distribution events following the sale, merger or other transaction involving Brigham Resources or its assets only after certain return thresholds are met by the holders of Series A Units, Series A-Z Units and Series A-M Units. There are eight classes of Restricted Units, including Series M-1, Series M-2, Series M-3 and Series M-4 (collectively, “Series M Units”) and Series Z-1, Series Z-2, Series Z-3 and Series Z-4 (collectively, “Series Z Units”). Brigham Resources is authorized to issue 10,000 units of each class of Series M Units and Series Z Units. A summary of the Restricted Units issued and outstanding is as follows: Series M Units M-1 M-2 M-3 M-4 Total Beginning balance 7,520 7,520 7,520 7,520 30,080 2017 issuances — — — — — 2017 forfeitures — — — — — Outstanding at December 31, 2017 7,520 7,520 7,520 7,520 30,080 2018 issuances 1,030 1,030 1,030 1,030 4,120 2018 forfeitures — — — — — Outstanding at December 31, 2018 8,550 8,550 8,550 8,550 34,200 Series Z Units Z-1 Z-2 Z-3 Z-4 Total Beginning balance 4,328 4,328 4,328 4,328 17,312 2017 issuances — — — — — 2017 forfeitures (15 ) (15 ) (15 ) (15 ) (60 ) Outstanding at December 31, 2017 4,313 4,313 4,313 4,313 17,252 2018 issuances 485 485 485 485 1,940 2018 forfeitures (105 ) (105 ) (105 ) (105 ) (420 ) Outstanding at December 31, 2018 4,693 4,693 4,693 4,693 18,772 As of December 31, 2018, 7,726 of each class of Series M Units ( 30,904 total) and 3,808 of each class of Series Z Units ( 15,232 total) had vested. As of December 31, 2017, 7,520 of each class of Series M Units ( 30,080 total) and 2,596 of each class of Series Z Units ( 10,386 total) had vested. The Series M-1 Units were issued with a threshold value of $0.00 ; the Series M-2 Units were issued with a threshold value of $2.25 ; the Series M-3 Units were issued with a threshold value of $6.50 ; and the Series M-4 Units were issued with a threshold value of $14.00 . The Series Z-1 Units were issued with a threshold value of $0.00 ; the Series Z-2 Units were issued with a threshold value of $1.91 ; the Series Z-3 Units were issued with a threshold value of $5.53 ; and the Series Z-4 Units were issued with a threshold value of $11.90 . In connection with the 2018 corporate reorganizations and the corporate reorganization consummated in connection with Brigham Minerals’ IPO, these Restricted Units were converted into Incentive Units. See "Note 10.—Share-Based Compensation— LLC Incentive Units" for further discussion of this transaction .

Share-Based Compensation

Share-Based Compensation	12 Months Ended
	Dec. 31, 2019
Share-based Payment Arrangement [Abstract]
Share-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 (“Brigham Equity Holdings”) 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. Upon vesting of the Incentive Units, holders of the Incentive Units 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. As discussed in “Note 9.—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 the Incentive Unit activity for the year ended December 31, 2019 is as follows: Incentive Units (In thousands) Number of Incentive Units Grant-date Fair Value Outstanding—January 1, 2019 3,272 $ 1.49 Vested (3,060 ) $ 0.89 Outstanding—December 31, 2019 212 $ 10.04 A summary of the Incentive Unit activity for the year ended December 31, 2018 is as follows: Incentive Units (In thousands) Number of Incentive Units Grant-date Fair Value Outstanding—January 1, 2018 2,918 $ 0.45 Granted 354 10.04 Vested — — Outstanding—December 31, 2018 3,272 $ 1.49 Brigham LLC used a third-party valuation specialist 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. Brigham LLC used the Black-Scholes option pricing valuation model with the following weighted-average assumptions Incentive Units 2018 Awards 2015 Awards 2013 Awards Expected volatility 28 % 33 % 40 % Expected dividend yield — — — Expected term (in years) 0.7 3.7 6.2 Risk-free interest rates 2.45 % 1.07 % 0.94 % Weighted-average grant date fair value per Incentive Unit $10.04 $0.03 $1.51 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 ("RSUs") and performance-based vesting units ("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 December 31, 2019 , 4,416,069 shares of Class A common stock remained available for future grants. Currently, all outstanding 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. 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. The remaining unvested RSAs generally vest in one-third increments on each of April 23, 2020, 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. During the year ended December 31, 2019 , 10,991 RSAs were forfeited. Brigham Minerals accounts for forfeitures as they occur. 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 that have been granted generally vest in one-third increments on each of the first three anniversaries of the grant date 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 expense of such RSUs was determined using the closing price on April 23, 2019, the date of grant, of $21.25 applied to the total number of 598,891 RSUs granted. Brigham Minerals accounts for forfeitures as they occur. During the year ended December 31, 2019 , 183,082 RSUs vested and no RSUs were forfeited. Brigham Minerals withheld 59,111 RSUs to satisfy employee tax withholding obligations related to the RSUs that vested in 2019 . PSUs represent the right to receive shares of Class A common stock on at the end of a specified performance period. 753,546 PSUs (based on target) were granted on April 23, 2019, with a performance period that ends on December 31, 2021. The terms and conditions of the PSUs allow for vesting of the awards ranging between 0% (or forfeiture) and 200% of target. The vesting level is calculated based on the actual total stockholder return achieved during the performance period including projected dividends. The fair value of such PSUs was determined using a Monte Carlo simulation and will be recognized over the applicable performance period. The Monte Carlo simulation model 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 using a historical period consistent with the 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. Using the assumptions in the table below, Brigham Minerals estimated the fair value of PSUs at the date of grant to be $20.36 . Performance-Based Restricted Stock Units Expected dividend yield 8.1 % Risk-free interest rate 2.3 % Volatility 30 % The number of PSUs that will be earned is estimated quarterly and as of December 31, 2019 , we estimated that 451,933 PSUs will be earned. No PSUs were forfeited or vested during the year ended December 31, 2019 . Share-Based Compensation Expense Share-based compensation expense is included in general and administrative expense in the Company’s consolidated and combined statement of operations included within this Annual Report. Share-based compensation cost recorded for each type of share-based compensation award, was as follows for the periods indicated: Years Ended December 31, (In thousands) 2019 2018 2017 Incentive Units (1) (3) $ 2,904 $ — $ — RSAs (2) (3) 3,972 — — RSUs (3) 4,630 — — PSUs (4) 2,361 — — Capitalized share-based compensation (5) (3,818 ) — — Total share-based compensation expense $ 10,049 $ — $ — (1) Includes a cumulative effect adjustment to share-based compensation cost of $2.0 million pertaining to the period from the grant date through the IPO date. No compensation expense was recorded prior to the IPO because the IPO was not considered probable. (2) Includes $3.2 million recorded at grant date of April 23, 2019, associated with 152,742 RSAs, which vested immediately. (3) Share-based compensation expense relating to Incentive Units, restricted stock awards and time-based restricted stock units with ratable vesting is recognized on a straight-line basis over the requisite service period for the entire award. (4) 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. (5) During the year ended December 31, 2019 , Brigham Minerals capitalized $3.8 million of the share-based compensation to unevaluated property on its balance sheet. In addition to the time-based vesting conditions described above, the Incentive Units could be earned upon the completion of an initial public offering or another liquidity event, considered a performance condition, which was not deemed probable and therefore no compensation expense was recognized prior to December 31, 2018. Future Share-Based Compensation Expense The following table reflects the future share-based compensation expense to be recorded for the share-based compensation awards that were outstanding at December 31, 2019 , a portion of which will be capitalized: (In thousands) Incentive Units RSAs RSUs PSUs Total 2020 $ 712 $ 1,052 $ 4,217 $ 3,419 $ 9,400 2021 712 1,052 3,890 3,419 9,073 2022 534 326 — — 860 Total $ 1,958 $ 2,430 $ 8,107 $ 6,838 $ 19,333

Temporary Equity

Temporary Equity	12 Months Ended
	Dec. 31, 2019
Temporary Equity Disclosure [Abstract]
Temporary Equity	Temporary Equity Temporary equity represents the Original Owners’ 40.2% ownership of Brigham LLC, as of December 31, 2019 . In addition, the Original Owners own all of our Class B common stock. 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 a redemption right into Class A shares. As discussed in “Note 1.— Business and Basis of Presentation,” following the IPO: • Each holder of Brigham LLC Units following the restructuring, 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 holds, 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 consolidated and combined 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 majority of the members of the board of directors are holders of the Class B common stock, which allows the holders of Class B common stock to elect the members of the board of directors of the Company, including those directors that determine 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 book value or redemption amount. From the date of the IPO through December 31, 2019 , the Company recorded adjustments to the value of temporary equity as presented in the table below: (In thousands) Temporary Equity Adjustments Balance - April 17, 2019 (1) $ 518,000 Conversion of Class B shares to Class A shares (104,390 ) Net income attribution 9,646 Distribution to holders of temporary equity (20,321 ) Adjustment of temporary equity to redemption amount (2) 51,572 Balance - December 31, 2019 $ 454,507 (1) Based on 28,777,802 shares of Class B common stock outstanding and Class A share price of $18.00 . (2) Based on 22,847,045 shares of Class B common stock outstanding and Class A share 10-day VWAP of $19.89 at December 31, 2019 .

Income Taxes

Income Taxes	12 Months Ended
	Dec. 31, 2019
Income Tax Disclosure [Abstract]
Income Taxes	Income Taxes The Company accounts for income taxes using the asset and liability method. Deferred tax assets and liabilities are recognized for the future tax consequences attributable to differences between the financial statement carrying amounts of existing assets and liabilities and their respective tax bases. Deferred tax assets and liabilities are calculated by applying existing tax laws and the rates expected to apply to taxable income in the years in which those temporary differences are expected to be recovered or settled. The effect of a change in tax rates on deferred tax assets and liabilities is recognized in income in the period that includes the enactment date. Brigham Minerals periodically assesses whether it is more likely than not that it will generate sufficient taxable income to realize its deferred income tax assets, including net operating losses. In making this determination, Brigham Minerals considers all available positive and negative evidence and makes certain assumptions. Brigham Minerals considers, among other things, its deferred tax liabilities, the overall business environment, its historical earnings and losses, current industry trends and its outlook for future years. Brigham Minerals did not record a valuation allowance at December 31, 2019 and 2018 . Brigham Minerals has evaluated all tax positions for which the statute of limitations remains open and believes that the material positions taken would more likely than not be sustained by examination. Therefore, at December 31, 2019, Brigham Minerals had not established any reserves for, nor recorded any unrecognized benefits related to, uncertain tax positions. Brigham Resources, the Company’s predecessor, is a limited liability company that is not subject to U.S. federal income tax, but is subject to the Texas Margin Tax and state income taxes in Oklahoma, North Dakota, and Colorado. As part of the corporate reorganization, certain entities affiliated with Warburg Pincus contributed all of their respective interests in certain wholly owned “blocker” 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. On the date of the corporate reorganization, a corresponding “first day” tax charge of approximately $3.1 million was recorded to establish a net deferred tax liability for differences between the tax and book basis of the investment in Brigham Resources. The offset of the deferred tax liability was recorded to additional paid-in-capital. Brigham Minerals is a corporation and is subject to U.S. federal income tax. In April 2019, Brigham Minerals completed the IPO of 16,675,000 shares of Class A common stock at a price to the public of $18.00 per share. The tax implications of the July 2018 restructuring, initial public IPO and the tax impact of the Company’s status as a taxable corporation subject to U.S. federal income tax have been reflected in the accompanying consolidated and combined financial statements. On IPO date, a corresponding tax benefit of approximately $13.7 million was recorded associated with the differences between the tax and book basis of the investment in Brigham Resources, LLC. The offset of the deferred tax asset was recorded to additional paid-in capital. Brigham Minerals completed the December 2019 Offering of 12,650,000 shares of its Class A common stock, 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, of which 5,496,813 represents shares issued upon redemption of an equivalent number of their Brigham LLC units, at a price to the public of $18.10 per share. After the December 2019 Offering and redemption, a corresponding tax benefit of approximately $9.5 million was recorded associated with the differences between the tax and book basis of the investment in Brigham Resources, LLC. The offset of the deferred tax asset was recorded to additional paid-in capital. The effective combined U.S. federal and state income tax rate for the year ended December 31, 2019 was 11.0% . During the twelve months ended December 31, 2019 , 2018 and 2017 , the Company recognized income tax expense of $2.7 million , $0.3 million and $1.0 million , respectively. Total income tax expense for the twelve months ended December 31, 2019 and 2018 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. Years Ended December 31, (In thousands) 2019 2018 2017 State Income Tax Current (benefit)/expense $ 692 $ (23 ) $ 713 Deferred (benefit)/expense 63 (138 ) 295 Federal Income Tax Current expense 1,322 114 — Deferred expense 602 374 — Totals: $ 2,679 $ 327 $ 1,008 Total current income taxes $ 2,014 $ 91 $ 713 Total deferred income taxes 665 236 295 Totals: $ 2,679 $ 327 $ 1,008 The following table reconciles the income tax provision with income tax expense at the federal statutory rate for the periods indicated: Years Ended December 31, (In thousands) 2019 2018 2017 Income before income taxes $ 24,318 $ 33,142 $ 116,620 Less: income before income taxes attributable to predecessor (5,118 ) (30,805 ) (116,620 ) Less: income before income taxes attributable to temporary equity (9,858 ) — — Income before income taxes attributable to shareholders $ 9,342 $ 2,337 $ — Income tax at the federal statutory rate $ 1,962 $ 491 $ — State income taxes, net of federal benefit 717 (150 ) 1,008 Percentage depletion in excess of basis — (14 ) — Total income tax provision $ 2,679 $ 327 $ 1,008 Brigham Minerals had $18.8 million recorded as deferred tax asset as of December 31, 2019 , and $3.7 million recorded as deferred tax liability at December 31, 2018 . The tax effects of temporary differences that give rise to significant portions of the deferred tax assets and deferred tax liabilities were are follows: Years Ended December 31, (In thousands) 2019 2018 Deferred tax assets: Investment in subsidiary $ 19,021 $ — Total deferred tax assets: $ 19,021 $ — Deferred tax liabilities: Oil and gas properties (198 ) (208 ) Investment in subsidiary — (3,476 ) Total deferred tax liabilities $ (198 ) $ (3,684 )

Commitments and Contingencies

Commitments and Contingencies	12 Months Ended
	Dec. 31, 2019
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies	Commitments and Contingencies Commitments Brigham Minerals leases office space under operating leases. Rent expense for the years ended December 31, 2019 , 2018 , and 2017 was $0.6 million , $0.3 million , and $0.2 million , respectively. Future minimum lease commitments under noncancelable operating leases at December 31, 2019 are presented below (in thousands): Year Commitment 2020 $ 1,000 2021 1,345 2022 1,419 2023 1,492 2024 1,566 2025 and Thereafter $ 4,312 Total $ 11,134 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 probable and the amount of the loss can be reasonably estimated. Brigham Minerals had no reserves for contingencies at December 31, 2019 and December 31, 2018 .

Related Party Transactions

Related Party Transactions	12 Months Ended
	Dec. 31, 2019
Related Party Transactions [Abstract]
Related Party Transactions	Related-Party Transactions Brigham Land Management (“BLM”) occasionally provides us with land brokerage services. The services are provided at market prices and are periodically verified by third-party quotes. BLM is owned by Vince Brigham, an advisor to us and brother of Ben M. Brigham, founder and Executive Chairman of the Board. For the years ended December 31, 2019 , 2018 and 2017 , the amounts paid to BLM for land brokerage services were $0.1 million , $0.1 million and $0.6 million , respectively. At December 31, 2019 , 2018 , and 2017 , the liabilities recorded for services performed by BLM during the respective periods were immaterial. Brigham Exploration Company, partially owned by Ben M. Brigham, on occasion leases some of our acreage at market rates. In connection with such leases, we received $0.4 million and $0.6 million for the year ended December 31, 2019 and 2017 . There were no payments for the year ended December 31, 2018 . During the year ended December 31, 2018 , Brigham Resources borrowed $7.0 million from Brigham Operating, at an interest rate of 7.00% and repaid the loan prior to December 31, 2018 .

Quarterly Financial Information

Quarterly Financial Information-Unaudited Quarterly Financial Information-Unaudited	12 Months Ended
	Dec. 31, 2019
Quarterly Financial Information Disclosure [Abstract]
Quarterly Financial Information-Unaudited	Quarterly Financial Information-Unaudited Summarized quarterly financial data for the years ended December 31, 2019 and 2018 are presented in the following tables. During the periods presented below, earnings per share information is not available due to no shares being recognized for accounting purposes for periods prior to the IPO. Three Months Ended (In thousands, except per share amount) March 31, June 30, September 30, December 31, 2019 Total revenues $ 18,265 $ 24,529 $ 25,107 $ 33,614 Income from operations 8,707 5,034 9,115 14,362 Net income 4,036 (3,207 ) 8,464 12,346 Net income attributable to Brigham Minerals (2) 534 (1,856 ) 3,146 5,077 Basic EPS attributable to Brigham Minerals, Inc. shareholders - (1) — (0.12 ) 0.14 0.20 Diluted EPS attributable to Brigham Minerals, Inc. shareholders - (1) — (0.12 ) 0.14 0.20 2018 Total revenues $ 14,083 $ 16,889 $ 18,701 $ 17,591 Income from operations 8,219 10,564 11,716 8,732 Net income 8,197 9,351 8,153 7,114 Net income attributable to Brigham Minerals (2) — — 891 948 Basic EPS attributable to Brigham Minerals, Inc. shareholders - (1) — — — — Diluted EPS attributable to Brigham Minerals, Inc. shareholders - (1) — — — — (1) - Represents earnings per share of Class A common stock and Class B common stock and weighted average shares of Class A common stock and Class B common stock for the period from April 17, 2019 through December 31, 2019, the period following the IPO. See "Note 8.— Shareholders' and Members' Equity" for further discussion of this transaction. (2) - Represents net income attributable to Brigham Minerals for the period starting with the completion of the July 2018 restructuring. See "Note 1.—Business and Basis of Presentation" for further discussion of this transaction.

Subsequent Events

Subsequent Events	12 Months Ended
	Dec. 31, 2019
Subsequent Events [Abstract]
Subsequent Events	Subsequent Events On February 27, 2020 , Brigham Minerals declared a dividend of $0.38 per Class A common stock payable on March 19, 2020 , to unitholders of record at the close of business on March 12, 2020 . On February 25, 2020 , the borrowing base on our revolving credit facility was increased to $180.0 million .

Reserve and Related Financial D

Reserve and Related Financial Data (SMOG) - Unaudited	12 Months Ended
	Dec. 31, 2019
Extractive Industries [Abstract]
Reserve and Related Financial Data (SMOG) - Unaudited	Acquisitions and Divestitures In 2019, Brigham Minerals adopted ASU 2017-01, Clarifying the Definition of a Business, using a prospective approach. This guidance assists in determining whether a transaction should be accounted for as an acquisition of assets or as a business. This ASU provides a screen that when substantially all of the fair value of the gross assets acquired, or disposed of, are concentrated in a single identifiable asset, or a group of similar identifiable assets, the set will not be considered a business. If the screen is not met, a set must include an input and a substantive process that together significantly contribute to the ability to create an output to be considered a business. The adoption of the new standard did not have a material impact on the consolidated and combined financial statements. During the years ended December 31, 2019 and 2018 , Brigham Minerals entered into a number of individually insignificant acquisitions of mineral and royalty interests from various sellers in Texas, Oklahoma, Colorado, New Mexico, and North Dakota, as reflected in the table 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 were funded with borrowings under its Owl Rock credit facility, our revolving credit facility and proceeds from the IPO. Assets Acquired Cash Consideration Paid (In thousands) Evaluated Unevaluated Twelve months ended December 31, 2019 $ 140,025 $ 78,093 $ 218,118 Twelve months ended December 31, 2018 $ 115,589 $ 81,367 $ 196,956 In August 2017, Brigham Minerals acquired certain mineral and royalty interests in the Delaware Basin for $29.2 million . Brigham Minerals funded the acquisition with capital contributions. The allocation of the purchase price was $20.5 million to unevaluated properties and $8.7 million to evaluated properties. In addition, during 2017, Brigham Minerals entered into a number of individually insignificant acquisitions. The change in the oil and natural gas property balance is comprised of individually insignificant payments for acquisitions of minerals, land brokerage costs and capitalized general and administrative capital expenditures. On February 28, 2017, Brigham Operating and Brigham Resources Midstream, LLC, wholly owned subsidiaries of Brigham Resources, closed on the sale of substantially all of their Southern Delaware Basin leasehold and related assets, including certain mineral and royalty interests owned by Brigham Resources, to a third-party public entity. The proceeds for mineral and royalty interests represented $156.7 million of the net adjusted sales price and consisted of cash of $111.1 million and shares valued at $45.6 million The mineral and royalty interests sold represented approximately 12% in aggregate of Brigham Minerals’ total proved reserves as of December 31, 2016. As a result of the sale, the relationship between capitalized costs and proved reserves was altered significantly and Brigham Minerals recorded a gain of $94.6 million . Reserve and Related Financial Data (SMOG) -Unaudited Oil and Natural Gas Reserves Proved reserves represent quantities of oil, natural gas and NGLs which, by analysis of geoscience and engineering data, can be estimated with reasonable certainty to be recoverable in the future from known reservoirs under existing economic conditions, operating methods and government regulations. Proved developed reserves are proved reserves which can be expected to be recovered through existing wells with existing equipment, infrastructure and operating methods. Proved reserves were estimated in accordance with guidelines established by the SEC, which require that reserve estimates be prepared under existing economic and operating conditions based upon the 12-month unweighted average of the first-day-of-the-month prices. The reserves at December 31, 2019 and December 31, 2018 presented below were audited by CG&A and the reserves at December 31, 2017 presented below were prepared by CG&A. Estimates of proved reserves are inherently imprecise and are continually subject to revision based on production history, results of additional exploration and development, price changes and other factors. The reserves are located in various fields in Texas, New Mexico, Oklahoma, Colorado, Wyoming, North Dakota, Montana and Pennsylvania. All of the proved reserves are located in the continental United States. Crude Oil (MBbl) Natural Gas (Mmcf) NGL (MBbl) Total (MBoe) Proved reserve quantities, December 31, 2016 7,174 22,991 2,356 13,363 Sales of minerals-in-place (1,291 ) (815 ) (200 ) (1,627 ) Extensions and discoveries 1,548 6,012 709 3,259 Acquisitions 2,141 9,380 1,116 4,820 Revisions of previous estimates (394 ) 2,601 108 147 Production (454 ) (1,768 ) (109 ) (858 ) Proved reserve quantities, December 31, 2017 8,724 38,401 3,980 19,104 Sales of minerals-in-place — — — — Extensions and discoveries 1,765 5,285 562 3,208 Acquisitions 3,669 13,862 1,374 7,354 Revisions of previous estimates (390 ) (3,245 ) (577 ) (1,508 ) Production (777 ) (2,507 ) (222 ) (1,417 ) Proved reserve quantities, December 31, 2018 12,991 51,796 5,117 26,741 Sales of minerals-in-place (182 ) (697 ) (110 ) (409 ) Extensions and discoveries 1,997 7,780 817 4,110 Acquisitions 4,256 13,053 1,218 7,651 Revisions of previous estimates (586 ) (5,495 ) (797 ) (2,299 ) Production (1,515 ) (4,707 ) (407 ) (2,706 ) Proved reserve quantities, December 31, 2019 16,961 61,730 5,838 33,088 Proved reserve quantities at December 31, 2019 attributable to temporary equity 6,812 24,792 2,345 13,289 Proved developed reserve quantities: December 31, 2017 2,804 13,028 1,185 6,160 December 31, 2018 6,067 21,735 1,898 11,588 December 31, 2019 9,924 33,232 2,494 17,957 Proved developed reserves at December 31, 2019 attributable to temporary equity 3,986 13,346 1,002 7,212 Proved undeveloped reserve quantities: December 31, 2017 5,920 25,373 2,795 12,944 December 31, 2018 6,924 30,061 3,219 15,153 December 31, 2019 7,037 28,498 3,344 15,131 Proved undeveloped reserves at December 31, 2019 attributable to temporary equity 2,826 11,445 1,343 6,077 Changes in proved reserves that occurred during 2019 were primarily due to: • the acquisition of additional mineral interests located in the Permian, Anadarko, DJ and Williston Basins in multiple transactions, which included 7,242 MBoe of additional proved reserves which is comprised of 7,651 MBoe of acquired proved reserves and divestiture of 409 MBoe of proved reserves within the year; • well additions extensions and discoveries of approximately 4,110 MBoe, as approximately 900 gross horizontal well locations were converted from probable, possible and contingent resources to proved, due to continuous activity and delineation of additional zones on our mineral and royalty interests; and • net volume revisions of approximately 2,299 MBoe. These revisions were comprised of 902 MBoe of negative revisions attributable to pricing as well as approximately 1,397 MBoe attributable to operator development timing, unit configuration and EUR adjustments to existing proved locations. Changes in proved reserves that occurred during 2018 were primarily due to: • the acquisition of additional mineral and royalty interests located in the Permian, DJ, Anadarko and Williston Basins in multiple transactions, which included 7,354 MBoe of additional proved reserves; • well additions, extensions and discoveries of approximately 3,208 MBoe, as 555 gross horizontal well locations were converted from probable, possible and contingent resources to proved, due to continuous activity and delineation of additional zones on our mineral and royalty interests; and • net negative volume revisions of approximately 1,508 MBoe. These revisions were comprised of 536 MBoe of positive revisions attributable to pricing and were offset by negative revisions of 1,100 MBoe attributable to operator development timing as well as 944 MBoe of revisions associated with unit configuration and EUR adjustments to existing proved locations. Changes in proved reserves that occurred during 2017 were primarily due to: • the acquisition of additional mineral and royalty interests located in the Permian, DJ, Anadarko and Williston Basins in multiple transactions, which included 4,820 MBoe of additional proved reserves; • well additions, extensions and discoveries of approximately 3,259 MBoe, as 854 horizontal well locations were converted from probable, possible and contingent resources to proved, due to continuous activity and delineation of additional zones on our mineral and royalty interests; • the divestiture of 1,627 MBoe through one sale of mineral and royalty interests located in the Permian Basin; and • positive volume revisions of approximately 2,581 MBoe attributable primarily to increased recovery in close proximity to our mineral and royalty interests, partially offset by negative revisions of approximately 2,434 MBoe, attributable primarily to operator development timing and revision of existing proved locations. Standardized Measure of Discounted Future Net Cash Flows Guidelines prescribed in FASB’s Accounting Standards Codification (“ASC”) Topic 932 Extractive Industries—Oil and Gas, have been followed for computing a standardized measure of future net cash flows and changes therein relating to estimated proved reserves. Future cash inflows are determined by applying prices and costs, including transportation, quality, and basis differentials, to the year-end estimated quantities of oil, natural gas and NGLs to be produced in the future. The resulting future net cash flows are reduced to present value amounts by applying a ten percent annual discount factor. The assumptions used to compute the standardized measure are those prescribed by the FASB and the SEC. These assumptions do not necessarily reflect Brigham Resources’ expectations of actual revenues to be derived from those reserves, nor their present value. The limitations inherent in the reserve quantity estimation process, as discussed previously, are equally applicable to the standardized measure computations since these reserve quantity estimates are the basis for the valuation process. Reserve estimates are inherently imprecise and estimates of new discoveries and undeveloped locations are more imprecise than estimates of established proved producing oil and gas properties. Accordingly, these estimates are expected to change as future information becomes available. The following summary sets forth the future net cash flows relating to proved oil and gas reserves based on the standardized measure prescribed in ASC Topic 932: For the Year Ended December 31, (In thousands) 2019 2018 2017 Future crude oil, natural gas, and NGL sales $ 1,042,118 $ 1,049,141 $ 595,874 Future severance tax and ad valorem taxes (73,627 ) (70,248 ) (40,225 ) Future income tax expense (143,599 ) (144,421 ) (1,151 ) Future net cash flows 824,892 834,472 554,498 10% annual discount (359,258 ) (391,013 ) (238,030 ) Standardized measure of discounted future net cash flows $ 465,634 $ 443,459 $ 316,468 Standardized measure of discounted future net cash flows attributable to temporary equity $ 186,999 $ — $ — The following prices were used in the determination of standardized measure: For the Year Ended December 31, 2019 2018 2017 Oil (per Bbl) $ 51.01 $ 61.31 $ 47.80 Natural gas (per Mcf) 1.51 2.51 2.74 NGLs (per Bbl) 14.39 23.98 18.56 These prices were based on the 12-month arithmetic average first-of-month West Texas Intermediate (“WTI”) price of oil and Henry Hub price of natural gas. The NGL pricing varied by basin at 13% to 30% of WTI. All prices have been adjusted for transportation, quality, basis differentials and post-production costs. The principal sources of change in the standardized measure of discounted future net cash flows are: For the Year Ended December 31, (In thousands) 2019 2018 2017 Standardized measure of discounted future net cash flows, beginning of the year $ 443,459 $ 316,468 $ 185,752 Changes in the year resulting from: Sales, less production costs (86,492 ) (52,278 ) (26,711 ) Revisions of previous quantity estimates (41,539 ) (22,942 ) 4,894 Extensions, discoveries, and other additions 69,057 71,668 56,511 Net change in prices and production costs (99,660 ) 71,770 30,565 Accretion of discount 51,949 31,713 18,612 Purchase of reserves in place 137,819 148,580 79,190 Divestitures of reserves in place (5,783 ) — (26,742 ) Net change in taxes (5,739 ) (75,369 ) (298 ) Timing differences and other 2,563 (46,151 ) (5,305 ) Standardized measure of discounted future net cash flows, end of the year $ 465,634 $ 443,459 $ 316,468 Capitalized oil and natural gas costs The aggregate amounts of costs capitalized for oil and natural gas producing activities and related aggregate amounts of accumulated depletion follow: For the Year Ended December 31, (In thousands) 2019 2018 2017 Oil and gas properties, at cost, using full cost method of accounting: Not subject to depletion $ 291,664 $ 228,151 $ 168,691 Subject to depletion 449,061 289,851 152,354 Total oil and gas properties, at cost 740,725 518,002 321,045 Less accumulated depreciation, depletion, and amortization (61,103 ) (27,628 ) (14,210 ) Total oil and gas properties, net $ 679,622 $ 490,374 $ 306,835 Costs incurred in oil and natural gas activities The following costs were incurred in oil and natural gas producing activities: For the Year Ended December 31, (In thousands) 2019 2018 2017 Acquisition of properties Unevaluated $ 78,093 $ 59,460 $ 50,224 Evaluated 140,025 137,496 51,862 Total $ 218,118 $ 196,956 $ 102,086

Significant Accounting Polici_2

Significant Accounting Policies (Policies)	12 Months Ended
	Dec. 31, 2019
Accounting Policies [Abstract]
Use of Estimates	Use of Estimates The preparation of consolidated and combined financial statements in conformity 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 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 consolidated and combined financial statements are based on a number of significant estimates including quantities of oil, natural gas and NGLs 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’ reserve estimates are audited by Cawley, Gillespie & Associates, Inc. (“CG&A”), an independent petroleum engineering firm. 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 and revenue accruals.
Cash and Cash Equivalents	Cash and Cash Equivalents Brigham Minerals considers all highly liquid investments with an original maturity of three months or less to be cash equivalents.
Restricted Cash	Restricted Cash Restricted cash includes cash that is contractually restricted for its use through an agreement with a non-related party. In 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.
Accounts Receivables	Accounts Receivables Receivables consist of royalty income due from operators for oil and gas sales to purchasers. Those purchasers remit payment for production to the operator of our properties and the operator, in turn, remits payment to us. Receivables from third parties for which we did not receive actual information, either due to timing delays or due to the unavailability of data at the time when revenues are recognized, are estimated. Volume estimates for wells with available historical actual data are based upon (i) the historical actual data for the months the data is available, or (ii) engineering estimates for the months the historical actual data is not available. We do not recognize revenues for wells with no historical actual data because we cannot conclude that it is probable that a significant revenue reversal will not occur in future periods. Pricing estimates are based upon actual prices realized in an area by adjusting the market price for the average basis differential from market on a basin-by-basin basis. Brigham Minerals routinely reviews outstanding balances, assesses the financial strength of its customers and records a reserve for amounts not expected to be fully recovered.
Concentration of Credit Risk and Significant Customers	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 prior 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.
Investments in Equity Securities	Investments in Equity Securities In January 2019, the Company adopted ASU 2016-01, Financial Instruments-Overall: Recognition and Measurement of Financial Assets and Financial Liabilities. The ASU changes to the current GAAP model primarily affects the accounting for equity investments, financial liabilities under the fair value option and the presentation and disclosure requirements for financial instruments. Under the new standard, all equity investments in unconsolidated entities (other than those accounted for using the equity method of accounting) will generally be measured at fair value through earnings. There will no longer be an available-for-sale classification (changes in fair value reported in other comprehensive income) for equity securities with readily determinable fair values. Prior to January 2019, Brigham Minerals classified its equity securities as available-for-sale, and as such, they were carried at fair value. Changes in fair value of available-for-sale securities were reported as a component of other comprehensive income. Losses were recognized within the consolidated and combined statement of operations when a decline in value is determined to be other-than-temporary. Brigham Minerals used the average cost method to determine the realized gain or loss for each sale or distribution of available-for-sale securities.
Financial Instruments	Financial Instruments Brigham Minerals’ financial instruments consist of cash and cash equivalents, receivables, payables, derivative assets and liabilities, investments in equity securities and long-term debt. The carrying amounts of cash and cash equivalents, receivables and payables approximate fair value due to the highly liquid or short-term nature of these instruments. The equity securities are publicly traded and are valued using quoted market prices. The fair values of Brigham Minerals’ derivative assets and liabilities are based on 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, volatility factors and credit risk adjustments. The carrying amount of long-term debt associated with borrowings outstanding under Brigham Minerals’ revolving credit facility approximates fair value as borrowings bear interest at variable market rates.
Derivative Instruments	Derivative Instruments In the normal course of business, Brigham Minerals is exposed to certain risks, including changes in the prices of oil, natural gas and NGLs and interest rates. Brigham Minerals has occasionally entered into derivative contracts to manage its exposure to these risks. Brigham Minerals’ risk management activity is generally accomplished through over-the-counter derivative contracts with large financial institutions. Brigham Minerals does not enter into derivative instruments for speculative purposes. Derivative instruments are recognized at fair value. If a right of offset exists under master netting arrangements and certain other criteria are met, derivative assets and liabilities with the same counterparty are netted on the consolidated and combined balance sheets. Brigham Minerals does not specifically designate derivative instruments as cash flow hedges, even though they reduce its exposure to changes in oil and natural gas prices; therefore, gains and losses arising from changes in the fair value of derivatives are recognized on a net basis in the accompanying consolidated and combined statements of operations within (loss) gain on derivative instruments, net.
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 and certain related employee costs are capitalized into a full cost pool. Costs associated with general corporate activities are expensed in the period incurred. Capitalized costs are amortized using the units-of-production method. Under this method, the provision for depletion is calculated by multiplying total production for the period by a depletion rate. The depletion rate is determined by dividing the total unamortized cost base by net equivalent proved reserves at the beginning of the period. Costs associated with unevaluated properties are excluded from the amortizable cost base until a determination has been made as to the existence of proved reserves. Unevaluated properties are reviewed periodically to determine whether the costs incurred should be reclassified to the full cost pool and subjected to amortization. The costs associated with unevaluated properties primarily consist of acquisition costs and capitalized general and administrative costs. Unevaluated properties are assessed for impairment on an individual basis or as a group if properties are individually insignificant. The assessment includes consideration of the following factors, among others: expectation of future drilling activity; past drilling results and activity; geological and geophysical evaluations; the assignment of proved reserves; and the economic viability of development if proved reserves are assigned. During any period in which these factors indicate an impairment, the cumulative acquisition costs incurred to date for such property are transferred to the full cost pool and are then subject to amortization. There was no impairment recorded for unevaluated properties in 2019 , 2018 and 2017 . Sales and abandonments of oil and natural gas properties being amortized are accounted for as adjustments to the full cost pool, with no gain or loss recognized unless the adjustments would significantly alter the relationship between capitalized costs and proved reserves. A significant alteration would not ordinarily be expected to occur upon the sale of reserves involving less than 25% of the reserve quantities of a cost center. Natural gas volumes are converted to barrels of oil equivalent (Boe) at the rate of six thousand cubic feet (Mcf) of natural gas to one barrel (Bbl) of oil. This convention is not an equivalent price basis and there may be a large difference in value between an equivalent volume of oil versus an equivalent volume of natural gas. 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, plus the lower of cost or fair value of unevaluated properties (the ceiling limitation). A ceiling limitation is calculated at each reporting period. If total capitalized costs, net of accumulated DD&A are greater than the ceiling limitation, a write-down or impairment of the full cost pool is required. A write-down of the carrying value of the full cost pool 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. Once incurred, a write-down cannot be reversed at a later date. The ceiling limitation calculation is prepared using the 12-month first day of the month oil and natural gas average prices, as adjusted for basis or location differentials, held constant over the life of the reserves (net wellhead prices). If applicable, these net wellhead prices would be further adjusted to include the effects of any fixed price arrangements for the sale of oil and natural gas.
Share-Based Compensation	Share-Based Compensation Brigham Minerals accounts for its share-based compensation including grants of the Incentive Units, restricted stock awards, time-based restricted stock units and performance-based stock units in the consolidated and combined statements of operations based on their estimated fair values at grant date. Brigham Minerals uses a Monte Carlo simulation to determine the fair value of performance-based stock units. Brigham Minerals recognizes expense on a straight-line basis over the vesting period of the respective grant, which is generally the requisite service period. Brigham Minerals capitalizes a portion of the share-based compensation cost to oil and gas properties on the consolidated and combined balance sheets. Share-based compensation expense is included in general and administrative expenses in Brigham Minerals’ consolidated and combined statements of operations included within this Annual Report. There was approximately $19.3 million of unamortized compensation expense relating to outstanding awards at December 31, 2019 , a portion of which will be capitalized. The unrecognized share-based compensation expense will be recognized on a straight-line basis over the remaining vesting periods of the awards. Brigham Minerals accounts for forfeitures as they occur.
Earnings Per Share	Earnings Per Share Brigham Minerals uses the “if-converted” method to determine the potential dilutive effect of its Class B common stock and the treasury stock method to determine the potential dilutive effect of outstanding Incentive Units, RSAs, RSUs, and PSUs.
Employee Benefit Plan	Employee Benefit Plan We sponsor a 401(k) tax-deferred savings plan for our employees. We match 100% of each employee’s contributions, up to 6% of the employee’s total compensation. Brigham Resources may also contribute additional amounts at its discretion.
Income Taxes	Income Taxes Brigham Minerals accounts for income taxes using the asset and liability method. Deferred tax assets and liabilities are recognized for the future tax consequences attributable to differences between the financial statement carrying amounts of existing assets and liabilities and their respective tax bases. Deferred tax assets and liabilities are calculated by applying existing tax laws and the rates expected to apply to taxable income in the years in which those temporary differences are expected to be recovered or settled. The effect of a change in tax rates on deferred tax assets and liabilities is recognized in income in the period that includes the enactment date. Brigham Minerals periodically assesses whether it is more likely than not that it will generate sufficient taxable income to realize its deferred income tax assets, including net operating losses. In making this determination, Brigham Minerals considers all available positive and negative evidence and makes certain assumptions. Brigham Minerals considers, among other things, its deferred tax liabilities, the overall business environment, its historical earnings and losses, current industry trends and its outlook for future years.
Temporary Equity	Temporary Equity Brigham Minerals accounts for the Original Owners’ 40.2% interest in Brigham LLC as temporary equity as a result of certain redemption rights held by the Original Owners as discussed in “Note 9.—Temporary Equity.” As such, the Company adjusts temporary equity to its maximum redemption amount at the balance sheet date, if higher than the carrying amount. The redemption amount is based on the 10-day volume-weighted average closing price (“VWAP”) of Class A shares at the end of the reporting period. Changes in the redemption value are recognized immediately as they occur, as if the end of the reporting period was also the redemption date for the instrument, with an offsetting entry to additional paid-in capital.
Revenue from Contracts with Customers	Revenue from Contracts with Customers On December 31, 2019 , the Company adopted Accounting Standards Codification Topic 606, Revenue from Contracts with Customers, ("ASC 606") using the modified retrospective approach, which only applied to contracts that were in effect as of the date of adoption. The adoption did not require an adjustment to opening retained earnings for the cumulative effect adjustment and did not impact the Company’s previously reported results of operations, nor its ongoing consolidated and combined balance sheets, statements of cash flow or statements of changes in shareholders' and members' equity. Overall, there were no material changes in the timing of the satisfaction of the Company’s performance obligations or the allocation of the transaction price to its performance obligations in applying the guidance in ASC 606 as compared to legacy U.S. GAAP. Oil and natural gas sales Oil, natural gas and NGLs sales revenues are generally 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. All of the Company’s oil, natural gas and NGL sales are made under contracts with customers (operators). The performance obligations for the Company’s contracts with customers are satisfied at a point in time through the delivery of oil and natural gas to its customers. Accordingly, the Company’s contracts do not give rise to contract assets or liabilities. The Company typically receives payment for oil, natural gas and NGL sales within 60 days of the month of delivery, which can extend up to 9 months after initial production from the well. The Company’s contracts for oil, natural gas and NGL sales are standard industry contracts that include variable consideration based on the monthly index price and adjustments that may include counterparty-specific provisions related to volumes, price differentials, discounts and other adjustments and deductions. As each unit of product represents a separate performance obligation and the consideration is variable as it relates to oil and natural gas prices, Brigham Minerals recognizes revenue from oil and natural gas sales using the allocation exception for variable consideration in ASC 606. Lease bonus and other income Brigham Minerals also earns revenue from lease bonuses, delay rentals, and right-of-way payments. We generate lease bonus revenue by leasing our mineral interests to exploration and production companies. A lease agreement represents our contract with a customer and generally transfers the rights to any oil or natural gas discovered, grants us a right to a specified royalty interest, and requires that drilling and completion operations commence within a specified time period. The Company recognizes lease bonus revenues when the lease agreement has been executed, payment has been received, and the Company has no further obligation to refund the payment. At the time Brigham Minerals executes the lease agreement, Brigham Minerals expects to receive the lease bonus payment within a reasonable time, though in no case more than one year, such that Brigham Minerals has not adjusted the expected amount of consideration for the effects of any significant financing component per the practical expedient in ASC 606. Brigham Minerals also recognizes revenue from delay rentals to the extent drilling has not started within the specified period, payment has been received, and we have no further obligation to refund the payment. Right-of-way payments are recorded by the Company when the agreement has been executed, payment is determined to be collectable, and the Company has no further obligation to refund the payment. Allocation of transaction price to remaining performance obligations Oil and natural gas sales Brigham Minerals’ right to royalty income does not originate until production occurs and, therefore, is not considered to exist beyond each day’s production. Therefore, there are no remaining performance obligation under any of our royalty income contracts. Lease bonus and other income Given that Brigham Minerals does not recognize lease bonus or other income until a lease agreement has been executed, at which point its performance obligation has been satisfied, and payment is received, Brigham Minerals does not record revenue for unsatisfied or partially unsatisfied performance obligations as of the end of the reporting period. Prior-period performance obligations Brigham Minerals records revenue in the month production is delivered to the purchaser. As a non-operator, Brigham Minerals has limited visibility into the timing of when new wells start producing and production statements may not be received for 30 to 90 days or more after the date production is delivered. As a result, Brigham Minerals 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 expected sales volumes and prices for these properties are estimated and recorded within the Accounts receivable line item in the accompanying consolidated and combined balance sheets. 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.
Debt Issuance Cost	Debt issuance costs were incurred in connection with establishing and amending credit facilities for Brigham Resources and are amortized over the term of the credit facilities using the straight-line method, which approximates the effective interest rate method.
Recently Issued Accounting Standards Not Yet Adopted	Recently Issued Accounting Standards Not Yet Adopted Brigham Minerals’ status as an emerging growth company under Section 107 of the JOBS Act 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, it 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, 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, 2021 and interim periods within the fiscal year ending December 31, 2022 and early adoption is permitted. We are currently evaluating the impact that the adoption of this update will have on our consolidated and combined financial statements and related disclosures.
Fair Value Measurement	We 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.

Significant Accounting Polici_3

Significant Accounting Policies (Tables)	12 Months Ended
	Dec. 31, 2019
Accounting Policies [Abstract]
Restrictions on Cash and Cash Equivalents	The December 31, 2018 accompanying statement of cash flow that was adjusted as a result of adoption of ASU 2016-18 is summarized below: Years Ended December 31, 2018 2018 (In thousands) As reported As adjusted Changes in restricted cash held in escrow for acquisitions $ (474 ) $ — Net cash provided by (used in) investing activities (195,742 ) (195,268 ) Increase in cash, cash equivalents and restricted cash $ 25,099 $ 25,573 Cash, cash equivalents and restricted cash, beginning of period 6,886 6,886 Cash, cash equivalents and restricted cash end of period 31,985 32,459
Schedule of Accounts Receivable	At December 31, 2019 and 2018 , accounts receivable was comprised of the following: December 31, (In thousands) 2019 2018 Oil and gas sales $ 27,888 $ 19,769 Allowance for doubtful accounts (556 ) (382 ) Other 2,959 1,308 Total accounts receivables $ 30,291 $ 20,695
Schedules of Concentration of Risk, by Risk Factor	Concentrations of oil and gas sales to significant customers (operators) are presented in the table below. For the year ended December 31, 2019 2018 2017 Occidental Petroleum Corp. 16 % 15 % — Continental Resources, Inc. 12 % 10 % 10 % XTO Energy, Inc. 10 % — — Noble Energy, Inc. 5 % 9 % 13 %

Oil and Gas Properties (Tables)

Oil and Gas Properties (Tables)	12 Months Ended
	Dec. 31, 2019
Extractive Industries [Abstract]
Schedule of Oil and Gas Properties	Costs associated with general corporate activities are expensed in the period incurred. Oil and gas properties consisted of the following: December 31, (In thousands) 2019 2018 Oil and gas properties, at cost, using the full cost method of accounting: Not subject to depletion $ 291,664 $ 228,151 Subject to depletion 449,061 289,851 Total oil and gas properties, at cost 740,725 518,002 Less accumulated depreciation, depletion, and amortization (61,103 ) (27,628 ) Total oil and gas properties, net $ 679,622 $ 490,374 Costs not subject to depletion are as follows, by the year in which such costs were incurred: By Year: Total 2019 2018 2017 2016 Prior (In thousands) Property Acquisition costs $ 291,664 $ 80,964 $ 73,002 $ 66,139 $ 10,745 $ 60,814 The aggregate amounts of costs capitalized for oil and natural gas producing activities and related aggregate amounts of accumulated depletion follow: For the Year Ended December 31, (In thousands) 2019 2018 2017 Oil and gas properties, at cost, using full cost method of accounting: Not subject to depletion $ 291,664 $ 228,151 $ 168,691 Subject to depletion 449,061 289,851 152,354 Total oil and gas properties, at cost 740,725 518,002 321,045 Less accumulated depreciation, depletion, and amortization (61,103 ) (27,628 ) (14,210 ) Total oil and gas properties, net $ 679,622 $ 490,374 $ 306,835

Acquisitions and Divestitures (

Acquisitions and Divestitures (Tables)	12 Months Ended
	Dec. 31, 2019
Business Combinations [Abstract]
Schedule of Asset Acquisitions	During the years ended December 31, 2019 and 2018 , Brigham Minerals entered into a number of individually insignificant acquisitions of mineral and royalty interests from various sellers in Texas, Oklahoma, Colorado, New Mexico, and North Dakota, as reflected in the table 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 were funded with borrowings under its Owl Rock credit facility, our revolving credit facility and proceeds from the IPO. Assets Acquired Cash Consideration Paid (In thousands) Evaluated Unevaluated Twelve months ended December 31, 2019 $ 140,025 $ 78,093 $ 218,118 Twelve months ended December 31, 2018 $ 115,589 $ 81,367 $ 196,956 The following costs were incurred in oil and natural gas producing activities: For the Year Ended December 31, (In thousands) 2019 2018 2017 Acquisition of properties Unevaluated $ 78,093 $ 59,460 $ 50,224 Evaluated 140,025 137,496 51,862 Total $ 218,118 $ 196,956 $ 102,086

Derivative Instruments (Tables)

Derivative Instruments (Tables)	12 Months Ended
	Dec. 31, 2019
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Offsetting Derivative Assets and Liabilities	The following table summarizes the location and fair value of our derivative instruments as of December 31, 2018 (in thousands): Derivative Instruments Balance Sheet Classification Gross Amount Recognized Less Group Amount of Offset Net Amount Recognized (In thousands) As of December 31, 2018 Derivative assets: Commodity swaps Current derivative assets $ 1,057 $ — $ 1,057
Schedule of Gain (Loss) On Derivative Instruments	The following table summarizes Brigham Minerals' (loss) gain on derivative instruments, net on its consolidated and combined statement of operations for the years ended December 31, 2019 , 2018 and 2017 (in thousands): Years Ended December 31, (In thousands) 2019 2018 2017 Realized gain (loss) $ 470 $ (754 ) $ — Unrealized gain (loss) (1,038 ) 1,178 (121 ) (Loss) gain on derivative instruments, net $ (568 ) $ 424 $ (121 )

Fair Value Measurements (Tables

Fair Value Measurements (Tables)	12 Months Ended
	Dec. 31, 2019
Fair Value Disclosures [Abstract]
Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis	Brigham Minerals' financial assets and liabilities that were accounted for at fair value on a recurring basis at December 31, 2018 are as follows (in thousands): December 31, 2018 Level 1 Level 2 Level 3 Total Assets-commodity derivative instruments $ — $ 1,057 $ — $ 1,057

Shareholders' and Members' Eq_2

Shareholders' and Members' Equity (Tables)	12 Months Ended
	Dec. 31, 2019
Equity [Abstract]
Schedule of Earnings Per Share, Basic and Diluted	The following table reflects the allocation of net income (loss) to common stockholders and EPS computations for the period indicated based on a weighted average number of common stock outstanding for the period: Years Ended December 31, (In thousands, except per share data) 2019 2018 2017 Basic EPS Numerator: Basic net income attributable to Brigham Minerals, Inc. shareholders $ 6,901 $ — $ — Less: net income attributable to Brigham Minerals, Inc. shareholders pre-IPO (848 ) — — Basic net income attributable to Brigham Minerals, Inc. shareholders post-IPO (1) 6,053 — — Denominator: Basic weighted average shares outstanding (1) 22,870 — — Basic EPS attributable to Brigham Minerals, Inc. shareholders $ 0.26 $ — $ — Diluted EPS Numerator: Basic net income attributable to Brigham Minerals, Inc. shareholders post-IPO (1) 6,053 — — Diluted net income attributable to Brigham Minerals, Inc. shareholders 6,053 — — Denominator: Basic weighted average shares outstanding (1) 22,870 — — Effect of dilutive securities: Diluted weighted average shares outstanding 22,870 — — Diluted EPS attributable to Brigham Minerals, Inc. shareholders $ 0.26 $ — $ — (1) - Represents earnings per share of Class A common stock and weighted average shares of Class A common stock for the period from April 17, 2019 through December 31, 2019, the period following the IPO.
Schedule of Restricted Incentive Unit Activity	A summary of the Restricted Units issued and outstanding is as follows: Series M Units M-1 M-2 M-3 M-4 Total Beginning balance 7,520 7,520 7,520 7,520 30,080 2017 issuances — — — — — 2017 forfeitures — — — — — Outstanding at December 31, 2017 7,520 7,520 7,520 7,520 30,080 2018 issuances 1,030 1,030 1,030 1,030 4,120 2018 forfeitures — — — — — Outstanding at December 31, 2018 8,550 8,550 8,550 8,550 34,200 Series Z Units Z-1 Z-2 Z-3 Z-4 Total Beginning balance 4,328 4,328 4,328 4,328 17,312 2017 issuances — — — — — 2017 forfeitures (15 ) (15 ) (15 ) (15 ) (60 ) Outstanding at December 31, 2017 4,313 4,313 4,313 4,313 17,252 2018 issuances 485 485 485 485 1,940 2018 forfeitures (105 ) (105 ) (105 ) (105 ) (420 ) Outstanding at December 31, 2018 4,693 4,693 4,693 4,693 18,772 A summary of the Incentive Unit activity for the year ended December 31, 2019 is as follows: Incentive Units (In thousands) Number of Incentive Units Grant-date Fair Value Outstanding—January 1, 2019 3,272 $ 1.49 Vested (3,060 ) $ 0.89 Outstanding—December 31, 2019 212 $ 10.04 A summary of the Incentive Unit activity for the year ended December 31, 2018 is as follows: Incentive Units (In thousands) Number of Incentive Units Grant-date Fair Value Outstanding—January 1, 2018 2,918 $ 0.45 Granted 354 10.04 Vested — — Outstanding—December 31, 2018 3,272 $ 1.49

Share-Based Compensation (Table

Share-Based Compensation (Tables)	12 Months Ended
	Dec. 31, 2019
Share-based Payment Arrangement [Abstract]
Schedule of Restricted Incentive Unit Activity	A summary of the Restricted Units issued and outstanding is as follows: Series M Units M-1 M-2 M-3 M-4 Total Beginning balance 7,520 7,520 7,520 7,520 30,080 2017 issuances — — — — — 2017 forfeitures — — — — — Outstanding at December 31, 2017 7,520 7,520 7,520 7,520 30,080 2018 issuances 1,030 1,030 1,030 1,030 4,120 2018 forfeitures — — — — — Outstanding at December 31, 2018 8,550 8,550 8,550 8,550 34,200 Series Z Units Z-1 Z-2 Z-3 Z-4 Total Beginning balance 4,328 4,328 4,328 4,328 17,312 2017 issuances — — — — — 2017 forfeitures (15 ) (15 ) (15 ) (15 ) (60 ) Outstanding at December 31, 2017 4,313 4,313 4,313 4,313 17,252 2018 issuances 485 485 485 485 1,940 2018 forfeitures (105 ) (105 ) (105 ) (105 ) (420 ) Outstanding at December 31, 2018 4,693 4,693 4,693 4,693 18,772 A summary of the Incentive Unit activity for the year ended December 31, 2019 is as follows: Incentive Units (In thousands) Number of Incentive Units Grant-date Fair Value Outstanding—January 1, 2019 3,272 $ 1.49 Vested (3,060 ) $ 0.89 Outstanding—December 31, 2019 212 $ 10.04 A summary of the Incentive Unit activity for the year ended December 31, 2018 is as follows: Incentive Units (In thousands) Number of Incentive Units Grant-date Fair Value Outstanding—January 1, 2018 2,918 $ 0.45 Granted 354 10.04 Vested — — Outstanding—December 31, 2018 3,272 $ 1.49
Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions	Performance-Based Restricted Stock Units Expected dividend yield 8.1 % Risk-free interest rate 2.3 % Volatility 30 % Brigham LLC used the Black-Scholes option pricing valuation model with the following weighted-average assumptions Incentive Units 2018 Awards 2015 Awards 2013 Awards Expected volatility 28 % 33 % 40 % Expected dividend yield — — — Expected term (in years) 0.7 3.7 6.2 Risk-free interest rates 2.45 % 1.07 % 0.94 % Weighted-average grant date fair value per Incentive Unit $10.04 $0.03 $1.51
Schedule of Share-Based Compensation Expense	Share-based compensation cost recorded for each type of share-based compensation award, was as follows for the periods indicated: Years Ended December 31, (In thousands) 2019 2018 2017 Incentive Units (1) (3) $ 2,904 $ — $ — RSAs (2) (3) 3,972 — — RSUs (3) 4,630 — — PSUs (4) 2,361 — — Capitalized share-based compensation (5) (3,818 ) — — Total share-based compensation expense $ 10,049 $ — $ — (1) Includes a cumulative effect adjustment to share-based compensation cost of $2.0 million pertaining to the period from the grant date through the IPO date. No compensation expense was recorded prior to the IPO because the IPO was not considered probable. (2) Includes $3.2 million recorded at grant date of April 23, 2019, associated with 152,742 RSAs, which vested immediately. (3) Share-based compensation expense relating to Incentive Units, restricted stock awards and time-based restricted stock units with ratable vesting is recognized on a straight-line basis over the requisite service period for the entire award. (4) 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. (5) During the year ended December 31, 2019 , Brigham Minerals capitalized $3.8 million of the share-based compensation to unevaluated property on its balance sheet. In addition to the time-based vesting conditions described above, the Incentive Units could be earned upon the completion of an initial public offering or another liquidity event, considered a performance condition, which was not deemed probable and therefore no compensation expense was recognized prior to December 31, 2018. Future Share-Based Compensation Expense The following table reflects the future share-based compensation expense to be recorded for the share-based compensation awards that were outstanding at December 31, 2019 , a portion of which will be capitalized: (In thousands) Incentive Units RSAs RSUs PSUs Total 2020 $ 712 $ 1,052 $ 4,217 $ 3,419 $ 9,400 2021 712 1,052 3,890 3,419 9,073 2022 534 326 — — 860 Total $ 1,958 $ 2,430 $ 8,107 $ 6,838 $ 19,333

Temporary Equity (Tables)

Temporary Equity (Tables)	12 Months Ended
	Dec. 31, 2019
Temporary Equity Disclosure [Abstract]
Temporary Equity	From the date of the IPO through December 31, 2019 , the Company recorded adjustments to the value of temporary equity as presented in the table below: (In thousands) Temporary Equity Adjustments Balance - April 17, 2019 (1) $ 518,000 Conversion of Class B shares to Class A shares (104,390 ) Net income attribution 9,646 Distribution to holders of temporary equity (20,321 ) Adjustment of temporary equity to redemption amount (2) 51,572 Balance - December 31, 2019 $ 454,507 (1) Based on 28,777,802 shares of Class B common stock outstanding and Class A share price of $18.00 . (2) Based on 22,847,045 shares of Class B common stock outstanding and Class A share 10-day VWAP of $19.89 at December 31, 2019 .

Income Taxes Income Taxes (Tabl

Income Taxes Income Taxes (Tables)	12 Months Ended
	Dec. 31, 2019
Income Tax Disclosure [Abstract]
Schedule of Components of Income Tax Expense (Benefit)	Years Ended December 31, (In thousands) 2019 2018 2017 State Income Tax Current (benefit)/expense $ 692 $ (23 ) $ 713 Deferred (benefit)/expense 63 (138 ) 295 Federal Income Tax Current expense 1,322 114 — Deferred expense 602 374 — Totals: $ 2,679 $ 327 $ 1,008 Total current income taxes $ 2,014 $ 91 $ 713 Total deferred income taxes 665 236 295 Totals: $ 2,679 $ 327 $ 1,008
Schedule of Income before Income Tax, Domestic and Foreign	The following table reconciles the income tax provision with income tax expense at the federal statutory rate for the periods indicated: Years Ended December 31, (In thousands) 2019 2018 2017 Income before income taxes $ 24,318 $ 33,142 $ 116,620 Less: income before income taxes attributable to predecessor (5,118 ) (30,805 ) (116,620 ) Less: income before income taxes attributable to temporary equity (9,858 ) — — Income before income taxes attributable to shareholders $ 9,342 $ 2,337 $ — Income tax at the federal statutory rate $ 1,962 $ 491 $ — State income taxes, net of federal benefit 717 (150 ) 1,008 Percentage depletion in excess of basis — (14 ) — Total income tax provision $ 2,679 $ 327 $ 1,008
Schedule of Deferred Tax Assets and Liabilities	The tax effects of temporary differences that give rise to significant portions of the deferred tax assets and deferred tax liabilities were are follows: Years Ended December 31, (In thousands) 2019 2018 Deferred tax assets: Investment in subsidiary $ 19,021 $ — Total deferred tax assets: $ 19,021 $ — Deferred tax liabilities: Oil and gas properties (198 ) (208 ) Investment in subsidiary — (3,476 ) Total deferred tax liabilities $ (198 ) $ (3,684 )

Commitments and Contingencies (

Commitments and Contingencies (Tables)	12 Months Ended
	Dec. 31, 2019
Commitments and Contingencies Disclosure [Abstract]
Schedule of Future Minimum Lease Commitments	Future minimum lease commitments under noncancelable operating leases at December 31, 2019 are presented below (in thousands): Year Commitment 2020 $ 1,000 2021 1,345 2022 1,419 2023 1,492 2024 1,566 2025 and Thereafter $ 4,312 Total $ 11,134

Quarterly Financial Informati_2

Quarterly Financial Information-Unaudited Quarterly Financial Information-Unaudited (Tables)	12 Months Ended
	Dec. 31, 2019
Quarterly Financial Information Disclosure [Abstract]
Quarterly Financial Information	Summarized quarterly financial data for the years ended December 31, 2019 and 2018 are presented in the following tables. During the periods presented below, earnings per share information is not available due to no shares being recognized for accounting purposes for periods prior to the IPO. Three Months Ended (In thousands, except per share amount) March 31, June 30, September 30, December 31, 2019 Total revenues $ 18,265 $ 24,529 $ 25,107 $ 33,614 Income from operations 8,707 5,034 9,115 14,362 Net income 4,036 (3,207 ) 8,464 12,346 Net income attributable to Brigham Minerals (2) 534 (1,856 ) 3,146 5,077 Basic EPS attributable to Brigham Minerals, Inc. shareholders - (1) — (0.12 ) 0.14 0.20 Diluted EPS attributable to Brigham Minerals, Inc. shareholders - (1) — (0.12 ) 0.14 0.20 2018 Total revenues $ 14,083 $ 16,889 $ 18,701 $ 17,591 Income from operations 8,219 10,564 11,716 8,732 Net income 8,197 9,351 8,153 7,114 Net income attributable to Brigham Minerals (2) — — 891 948 Basic EPS attributable to Brigham Minerals, Inc. shareholders - (1) — — — — Diluted EPS attributable to Brigham Minerals, Inc. shareholders - (1) — — — — (1) - Represents earnings per share of Class A common stock and Class B common stock and weighted average shares of Class A common stock and Class B common stock for the period from April 17, 2019 through December 31, 2019, the period following the IPO. See "Note 8.— Shareholders' and Members' Equity" for further discussion of this transaction. (2) - Represents net income attributable to Brigham Minerals for the period starting with the completion of the July 2018 restructuring. See "Note 1.—Business and Basis of Presentation" for further discussion of this transaction.

Reserve and Related Financial_2

Reserve and Related Financial Data (SMOG) - Unaudited (Tables)	12 Months Ended
	Dec. 31, 2019
Extractive Industries [Abstract]
Schedule of Proved Developed and Undeveloped Oil and Gas Reserve Quantities	The reserves at December 31, 2019 and December 31, 2018 presented below were audited by CG&A and the reserves at December 31, 2017 presented below were prepared by CG&A. Estimates of proved reserves are inherently imprecise and are continually subject to revision based on production history, results of additional exploration and development, price changes and other factors. The reserves are located in various fields in Texas, New Mexico, Oklahoma, Colorado, Wyoming, North Dakota, Montana and Pennsylvania. All of the proved reserves are located in the continental United States. Crude Oil (MBbl) Natural Gas (Mmcf) NGL (MBbl) Total (MBoe) Proved reserve quantities, December 31, 2016 7,174 22,991 2,356 13,363 Sales of minerals-in-place (1,291 ) (815 ) (200 ) (1,627 ) Extensions and discoveries 1,548 6,012 709 3,259 Acquisitions 2,141 9,380 1,116 4,820 Revisions of previous estimates (394 ) 2,601 108 147 Production (454 ) (1,768 ) (109 ) (858 ) Proved reserve quantities, December 31, 2017 8,724 38,401 3,980 19,104 Sales of minerals-in-place — — — — Extensions and discoveries 1,765 5,285 562 3,208 Acquisitions 3,669 13,862 1,374 7,354 Revisions of previous estimates (390 ) (3,245 ) (577 ) (1,508 ) Production (777 ) (2,507 ) (222 ) (1,417 ) Proved reserve quantities, December 31, 2018 12,991 51,796 5,117 26,741 Sales of minerals-in-place (182 ) (697 ) (110 ) (409 ) Extensions and discoveries 1,997 7,780 817 4,110 Acquisitions 4,256 13,053 1,218 7,651 Revisions of previous estimates (586 ) (5,495 ) (797 ) (2,299 ) Production (1,515 ) (4,707 ) (407 ) (2,706 ) Proved reserve quantities, December 31, 2019 16,961 61,730 5,838 33,088 Proved reserve quantities at December 31, 2019 attributable to temporary equity 6,812 24,792 2,345 13,289 Proved developed reserve quantities: December 31, 2017 2,804 13,028 1,185 6,160 December 31, 2018 6,067 21,735 1,898 11,588 December 31, 2019 9,924 33,232 2,494 17,957 Proved developed reserves at December 31, 2019 attributable to temporary equity 3,986 13,346 1,002 7,212 Proved undeveloped reserve quantities: December 31, 2017 5,920 25,373 2,795 12,944 December 31, 2018 6,924 30,061 3,219 15,153 December 31, 2019 7,037 28,498 3,344 15,131 Proved undeveloped reserves at December 31, 2019 attributable to temporary equity 2,826 11,445 1,343 6,077
Standardized Measure of Discounted Future Cash Flows Relating to Proved Reserves Disclosure	The following summary sets forth the future net cash flows relating to proved oil and gas reserves based on the standardized measure prescribed in ASC Topic 932: For the Year Ended December 31, (In thousands) 2019 2018 2017 Future crude oil, natural gas, and NGL sales $ 1,042,118 $ 1,049,141 $ 595,874 Future severance tax and ad valorem taxes (73,627 ) (70,248 ) (40,225 ) Future income tax expense (143,599 ) (144,421 ) (1,151 ) Future net cash flows 824,892 834,472 554,498 10% annual discount (359,258 ) (391,013 ) (238,030 ) Standardized measure of discounted future net cash flows $ 465,634 $ 443,459 $ 316,468 Standardized measure of discounted future net cash flows attributable to temporary equity $ 186,999 $ — $ —
Oil and Gas Net Production, Average Sales Price and Average Production Costs Disclosure	The following prices were used in the determination of standardized measure: For the Year Ended December 31, 2019 2018 2017 Oil (per Bbl) $ 51.01 $ 61.31 $ 47.80 Natural gas (per Mcf) 1.51 2.51 2.74 NGLs (per Bbl) 14.39 23.98 18.56
Schedule of Changes in Standardized Measure of Discounted Future Net Cash Flows	The principal sources of change in the standardized measure of discounted future net cash flows are: For the Year Ended December 31, (In thousands) 2019 2018 2017 Standardized measure of discounted future net cash flows, beginning of the year $ 443,459 $ 316,468 $ 185,752 Changes in the year resulting from: Sales, less production costs (86,492 ) (52,278 ) (26,711 ) Revisions of previous quantity estimates (41,539 ) (22,942 ) 4,894 Extensions, discoveries, and other additions 69,057 71,668 56,511 Net change in prices and production costs (99,660 ) 71,770 30,565 Accretion of discount 51,949 31,713 18,612 Purchase of reserves in place 137,819 148,580 79,190 Divestitures of reserves in place (5,783 ) — (26,742 ) Net change in taxes (5,739 ) (75,369 ) (298 ) Timing differences and other 2,563 (46,151 ) (5,305 ) Standardized measure of discounted future net cash flows, end of the year $ 465,634 $ 443,459 $ 316,468
Schedule of Capitalized Oil and Natural Gas Costs	Costs associated with general corporate activities are expensed in the period incurred. Oil and gas properties consisted of the following: December 31, (In thousands) 2019 2018 Oil and gas properties, at cost, using the full cost method of accounting: Not subject to depletion $ 291,664 $ 228,151 Subject to depletion 449,061 289,851 Total oil and gas properties, at cost 740,725 518,002 Less accumulated depreciation, depletion, and amortization (61,103 ) (27,628 ) Total oil and gas properties, net $ 679,622 $ 490,374 Costs not subject to depletion are as follows, by the year in which such costs were incurred: By Year: Total 2019 2018 2017 2016 Prior (In thousands) Property Acquisition costs $ 291,664 $ 80,964 $ 73,002 $ 66,139 $ 10,745 $ 60,814 The aggregate amounts of costs capitalized for oil and natural gas producing activities and related aggregate amounts of accumulated depletion follow: For the Year Ended December 31, (In thousands) 2019 2018 2017 Oil and gas properties, at cost, using full cost method of accounting: Not subject to depletion $ 291,664 $ 228,151 $ 168,691 Subject to depletion 449,061 289,851 152,354 Total oil and gas properties, at cost 740,725 518,002 321,045 Less accumulated depreciation, depletion, and amortization (61,103 ) (27,628 ) (14,210 ) Total oil and gas properties, net $ 679,622 $ 490,374 $ 306,835
Cost Incurred in Oil and Gas Property Acquisition, Exploration, and Development Activities Disclosure	During the years ended December 31, 2019 and 2018 , Brigham Minerals entered into a number of individually insignificant acquisitions of mineral and royalty interests from various sellers in Texas, Oklahoma, Colorado, New Mexico, and North Dakota, as reflected in the table 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 were funded with borrowings under its Owl Rock credit facility, our revolving credit facility and proceeds from the IPO. Assets Acquired Cash Consideration Paid (In thousands) Evaluated Unevaluated Twelve months ended December 31, 2019 $ 140,025 $ 78,093 $ 218,118 Twelve months ended December 31, 2018 $ 115,589 $ 81,367 $ 196,956 The following costs were incurred in oil and natural gas producing activities: For the Year Ended December 31, (In thousands) 2019 2018 2017 Acquisition of properties Unevaluated $ 78,093 $ 59,460 $ 50,224 Evaluated 140,025 137,496 51,862 Total $ 218,118 $ 196,956 $ 102,086

Business and Basis of Present_2

Business and Basis of Presentation (Details)

Dec. 17, 2019

Dec. 16, 2019USD ($)$ / sharesshares

May 07, 2019USD ($)

Apr. 17, 2019USD ($)$ / sharesshares

Sep. 30, 2019USD ($)

Dec. 30, 2019USD ($)

Dec. 31, 2019USD ($)segmentbusiness

Dec. 31, 2018USD ($)

Dec. 31, 2017USD ($)

May 31, 2019USD ($)

Jul. 27, 2018USD ($)

Jul. 16, 2018

Schedule of Equity Method Investments [Line Items]

Number of operating segments | segment

1

Number of distinct lines of business | business

2

Equity securities distributed

$ 0

$ 3,313,000

$ (20,092,000)

Unamortized debt issuance costs written off

$ 4,000,000

Prepayment premium paid

2,091,000

0

0

Gain (loss) on debt extinguishment

(6,900,000)

(6,892,000)

0

0

Adjustment to APIC, stock issuance costs

$ 8,700,000

5,100,000

3,600,000

Share based compensation, additional charge

11,900,000

Capitalized share based compensation

3,818,000

$ 0

0

Share based compensation expense

19,333,000

Brigham Minerals LLC

Schedule of Equity Method Investments [Line Items]

Ownership percentage by subsidiary

43.30%

Percentage of voting rights owned

100.00%

Brigham Resources, LLC

Schedule of Equity Method Investments [Line Items]

Cash collateral posted for existing swap contracts

$ 1,600,000

$ 1,400,000

Brigham Resources

Schedule of Equity Method Investments [Line Items]

Equity method investment, ownership percentage

16.50%

Class A Common Stock

Schedule of Equity Method Investments [Line Items]

Share price (in dollars per share) | $ / shares

$ 18

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) | shares

16,675,000

Share price (in dollars per share) | $ / shares

$ 18

Sale of stock, ownership percentage

75.80%

December Offering | Class A Common Stock

Schedule of Equity Method Investments [Line Items]

Sale of stock, number of shares issued (in shares) | shares

12,650,000

December Offering, Company

Schedule of Equity Method Investments [Line Items]

Consideration received

$ 102,700,000

Sale of stock, ownership percentage

59.80%

December Offering, Company | Class A Common Stock

Schedule of Equity Method Investments [Line Items]

Sale of stock, number of shares issued (in shares) | 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) | 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) | shares

5,496,813

Term Loan Facility

Schedule of Equity Method Investments [Line Items]

Prepayment premium paid

2,100,000

Legal fees paid

800,000

Line of credit, borrowing base

$ 125,000,000

New Revolving Credit Facility

Schedule of Equity Method Investments [Line Items]

Repayments of lines of credit

$ 80,000,000

$ 200,000,000

New Revolving Credit Facility | Brigham Resources, LLC

Schedule of Equity Method Investments [Line Items]

Line of credit, borrowing base

$ 135,000,000

$ 150,000,000

Existing Owners of Brigham Minerals

Schedule of Equity Method Investments [Line Items]

Sale of stock, ownership percentage

10.50%

Existing Owners of Brigham Minerals | Class A Common Stock

Schedule of Equity Method Investments [Line Items]

Number of shares owned after transaction (in shares) | shares

5,322,197

Sale of stock, ownership percentage

24.20%

Existing Owners of Brigham Minerals | Class B Common Stock

Schedule of Equity Method Investments [Line Items]

Sale of stock, ownership percentage

40.20%

56.70%

Existing Owners of Brigham Minerals | December Offering, Company

Schedule of Equity Method Investments [Line Items]

Sale of stock, ownership percentage

39.10%

Investors in Offering

Schedule of Equity Method Investments [Line Items]

Sale of stock, ownership percentage

32.80%

Previously Reported

Schedule of Equity Method Investments [Line Items]

Equity securities distributed

37,988,000

Operating expenses

$ 94,600,000

Incentive Units

Schedule of Equity Method Investments [Line Items]

Compensation expense, cumulative effect adjustment at IPO

$ 2,000,000

Share based compensation expense

$ 1,958,000

Significant Accounting Polici_4

Significant Accounting Policies - Narrative (Details) $ in Thousands	Apr. 17, 2019	Sep. 30, 2019USD ($)	Dec. 31, 2019USD ($)	Dec. 31, 2019USD ($)$ / bbl$ / MMBTU	Dec. 31, 2018USD ($)$ / bbl$ / MMBTU	Dec. 31, 2017USD ($)$ / bbl$ / MMBTU
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Increase in investing cash flow				$ (216,832)	$ (195,268)	$ 26,172
Allowance for doubtful accounts			$ 556	556	382
Share based compensation expense				$ 19,333
Employer matching contribution, percent of match				100.00%
Employer matching contribution, percent of employees' total compensation				6.00%
Contributions				$ 300	200	100
Deferred tax asset arising from the IPO		$ 13,700	13,664
Timing of satisfaction of performance obligation and payment				The Company typically receives payment for oil, natural gas and NGL sales within 60 days of the month of delivery, which can extend up to 9 months after initial production from the well.
Debt issuance costs			1,200	$ 1,200	4,300
Accumulated amortization of debt issuance costs			$ 200	200	300
Amortization of debt issuance costs				$ 433	690	$ 121
Existing Owners of Brigham Minerals
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Sale of stock, ownership percentage	10.50%
Existing Owners of Brigham Minerals | Class B Common Stock
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Sale of stock, ownership percentage	40.20%			56.70%
Accounting Standards Update 2016-18
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Increase in investing cash flow					$ 500
Crude Oil (MBbl)
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Average sales prices (in dollars per share) | $ / bbl				55.65	65.66	51.34
Natural gas (per Mcf)
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Average sales prices (in dollars per share) | $ / MMBTU				2.60	3.12	2.99

Significant Accounting Polici_5

Significant Accounting Policies - Schedule of Restricted Cash (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Restricted Cash and Cash Equivalents Items [Line Items]
Changes in restricted cash held in escrow for acquisitions		$ 0
Net cash provided by (used in) investing activities	$ (216,832)	(195,268)	$ 26,172
Increase in cash, cash equivalents and restricted cash	18,674	25,573	(27,074)
Cash, cash equivalents and restricted cash, beginning of period	32,459	6,886	33,960
Cash, cash equivalents and restricted cash end of period	51,133	32,459	6,886
Previously Reported
Restricted Cash and Cash Equivalents Items [Line Items]
Changes in restricted cash held in escrow for acquisitions		(474)
Net cash provided by (used in) investing activities		(195,742)
Increase in cash, cash equivalents and restricted cash		25,099
Cash, cash equivalents and restricted cash, beginning of period	$ 31,985	6,886
Cash, cash equivalents and restricted cash end of period		$ 31,985	$ 6,886

Significant Accounting Polici_6

Significant Accounting Policies - Schedule of Accounts Receivable (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Accounting Policies [Abstract]
Oil and gas sales	$ 27,888	$ 19,769
Allowance for doubtful accounts	(556)	(382)
Other	2,959	1,308
Total accounts receivables	$ 30,291	$ 20,695

Significant Accounting Polici_7

Significant Accounting Policies - Schedule of Concentration Risk (Details) - Sales Revenue, Product Line - Customer Concentration Risk	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Occidental Petroleum Corp.
Concentration Risk [Line Items]
Concentration risk (as a percentage)	16.00%	15.00%	0.00%
Continental Resources, Inc.
Concentration Risk [Line Items]
Concentration risk (as a percentage)	12.00%	10.00%	10.00%
XTO Energy, Inc.
Concentration Risk [Line Items]
Concentration risk (as a percentage)	10.00%	0.00%	0.00%
Noble Energy, Inc.
Concentration Risk [Line Items]
Concentration risk (as a percentage)	5.00%	9.00%	13.00%

Oil and Gas Properties - Schedu

Oil and Gas Properties - Schedule of Oil and Gas Properties (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Oil and gas properties, at cost, using the full cost method of accounting:
Not subject to depletion	$ 291,664	$ 228,151
Subject to depletion	449,061	289,851
Total oil and gas properties, at cost	740,725	518,002
Less accumulated depreciation, depletion, and amortization	(61,103)	(27,628)
Total oil and gas properties, net	679,622	490,374
Costs not subject to depletion, cost per year	$ 80,964	$ 73,002	$ 66,139	$ 10,745	$ 60,814

Oil and Gas Properties - Narrat

Oil and Gas Properties - Narrative (Details) $ in Millions	12 Months Ended
	Dec. 31, 2019USD ($)$ / Boe	Dec. 31, 2018USD ($)$ / Boe	Dec. 31, 2017USD ($)$ / Boe
Extractive Industries [Abstract]
Depletion expense	$ 30.4	$ 13.3	$ 6.2
Full cost pool depletion per barrel of oil equivalent | $ / Boe	11.22	9.38	7.25
Capitalized costs	$ 7.4	$ 2.7	$ 2.1

Acquisitions and Divestitures -

Acquisitions and Divestitures - Schedule of Acquisitions (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Business Acquisition [Line Items]
Assets acquired, evaluated	$ 140,025	$ 137,496	$ 51,862
Assets acquired, unevaluated	78,093	59,460	50,224
Total	218,118	196,956	$ 102,086
Texas, Oklahoma, Colorado, New Mexico, North Dakota
Business Acquisition [Line Items]
Assets acquired, evaluated	140,025	115,589
Assets acquired, unevaluated	78,093	81,367
Total	$ 218,118	$ 196,956

Acquisitions and Divestitures_2

Acquisitions and Divestitures - Narrative (Details) - USD ($) $ in Thousands	Feb. 28, 2017	Aug. 31, 2017	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Business Acquisition [Line Items]
Cash consideration paid			$ 218,118	$ 196,956	$ 102,086
Assets acquired, unevaluated			78,093	59,460	50,224
Assets acquired, evaluated			140,025	137,496	51,862
Proceeds from sale of oil and gas properties, net			3,123	125	111,024
Gain on sale of oil and gas properties, net			$ 0	$ 0	94,551
Delaware Basin
Business Acquisition [Line Items]
Cash consideration paid		$ 29,200
Assets acquired, unevaluated		20,500
Assets acquired, evaluated		$ 8,700
Southern Delaware Basin
Business Acquisition [Line Items]
Proceeds from sale of oil and gas properties, net	$ 156,700
Proceeds from sale of oil and gas properties, cash portion	111,100
Proceeds from sale of oil and gas properties, value of shares	$ 45,600
Sale of oil and gas properties, percentage of total proved reserves	12.00%
Gain on sale of oil and gas properties, net					$ 94,600

Derivative Instruments - Narrat

Derivative Instruments - Narrative (Details) - USD ($) $ in Millions	May 31, 2019	Jul. 27, 2018
Brigham Resources, LLC
Derivative [Line Items]
Cash collateral posted for existing swap contracts	$ 1.6	$ 1.4

Derivative Instruments - Summar

Derivative Instruments - Summary of Location and Fair Value of Derivative Instruments (Details) - Commodity swaps - Current derivative assets $ in Thousands	Dec. 31, 2018USD ($)
Derivative assets:
Gross Amount Recognized	$ 1,057
Less Group Amount of Offset	0
Net Amount Recognized	$ 1,057

Derivative Instruments - Schedu

Derivative Instruments - Schedule of Gains (Losses) on Derivatives (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Realized gain (loss)	$ 470	$ (754)	$ 0
Unrealized gain (loss)	(1,038)	1,178	(121)
(Loss) gain on derivative instruments, net	$ (568)	$ 424	$ (121)

Fair Value Measurements - Sched

Fair Value Measurements - Schedule of Assets and Liabilities Measured at Fair Value (Details) - Fair Value, Measurements, Recurring $ in Thousands	Dec. 31, 2018USD ($)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative assets	$ 1,057
Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative assets	0
Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative assets	1,057
Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative assets	$ 0

Fair Value Measurements - Narra

Fair Value Measurements - Narrative (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Fair Value Disclosures [Abstract]
Available for sale securities, aggregate cost			$ 3,400
Available-for-sale securities, unrealized gains		$ 100	700
Fair value of available for sale securities			4,100
Available for sale securities distributed		3,300
Proceeds from sale of equity securities	$ 0	933	17,896
Gain on sale and distribution of equity securities	$ 0	$ 823	$ (4,222)

Long-Term Debt (Details)

Long-Term Debt (Details)	May 16, 2019	May 07, 2019USD ($)	Jul. 27, 2018USD ($)	Sep. 30, 2018USD ($)	Dec. 31, 2019USD ($)	Dec. 31, 2018USD ($)	Dec. 31, 2017USD ($)	Feb. 25, 2020USD ($)	Apr. 17, 2019USD ($)	Jul. 26, 2018USD ($)
Debt Instrument [Line Items]
Unamortized debt issuance costs written off		$ 4,000,000
Loss on extinguishment of debt		6,900,000			$ 6,892,000	$ 0	$ 0
Prepayment premium paid					2,091,000	$ 0	$ 0
Term Loan Facility
Debt Instrument [Line Items]
Line of credit, borrowing base			$ 125,000,000
Prepayment premium paid		2,100,000
Legal fees paid		$ 800,000
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
Revolving Credit Facility
Debt Instrument [Line Items]
Line of credit, borrowing base										$ 150,000,000
Line of credit facility available			70,000,000
Unamortized debt issuance costs written off				$ 300,000
Long-term debt outstanding			70,000,000
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]
Line of credit, borrowing base					$ 150,000,000				$ 135,000,000
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 | 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%
Subsequent Event | New Revolving Credit Facility
Debt Instrument [Line Items]
Line of credit, borrowing base								$ 180,000,000

Shareholders' and Members' Eq_3

Shareholders' and Members' Equity - Narrative (Details)	Apr. 23, 2019shares	May 08, 2015vote$ / sharesshares	Apr. 05, 2013vote$ / sharesshares	Dec. 31, 2019vote$ / sharesshares	Dec. 31, 2018USD ($)classshares	Dec. 31, 2017USD ($)shares	Apr. 17, 2019$ / shares	Dec. 31, 2014shares
Class A Common Stock
Class of Stock [Line Items]
Common stock outstanding (in shares)				34,040,934
Number of votes per share (vote) | vote				1
Share price (in dollars per share) | $ / shares							$ 18
Class B Common Stock
Class of Stock [Line Items]
Common stock outstanding (in shares)				22,847,045
Number of votes per share (vote) | vote				1
Series A Common Units
Class of Stock [Line Items]
Number of votes per share (vote) | vote			1
Units subscriptions issued (in shares)			64,840,000
Share price (in dollars per share) | $ / shares			$ 10
Purchase period of units			5 years
Liquidation preference cumulative return in addition to total invested capital (as a percent)			7.00%
Series A-M Units
Class of Stock [Line Items]
Share price (in dollars per share) | $ / shares				$ 10
Sale of stock, number of shares issued (in shares)			160,000	460,000
Units available for issuance (in shares)			300,000
Units issued (in shares)								300,000
Liquidation preference cumulative return in addition to total invested capital (as a percent)			7.00%
Award vesting percentage at grant (as a percent)						100.00%
Series A-Z Units
Class of Stock [Line Items]
Number of votes per share (vote) | vote		1
Units subscriptions issued (in shares)		41,176,471
Share price (in dollars per share) | $ / shares		$ 8.50
Units issued (in shares)					5,411,764	4,352,941
Proceeds from issuance of common limited partners units | $					$ 45,999,995	$ 37,000,002
Liquidation preference cumulative return in addition to total invested capital (as a percent)		7.00%
Performance-Based Restricted Stock Units
Class of Stock [Line Items]
Shares granted during period (in shares)	753,546			753,546
Restricted Incentive Units
Class of Stock [Line Items]
Award vesting percentage at grant (as a percent)					20.00%
Number of classes of restricted units | class					8
Restricted units, shares authorized				120,000
Restricted Incentive Units | Series M Units
Class of Stock [Line Items]
Restricted units, shares authorized					10,000
Shares vested during period (in shares)					30,904	30,080
Restricted Incentive Units | Series M Units, M 1-4
Class of Stock [Line Items]
Shares vested during period (in shares)					7,726	7,520
Restricted Incentive Units | Series Z Units, Z 1-4
Class of Stock [Line Items]
Shares vested during period (in shares)					3,808	2,596
Restricted Incentive Units | Series Z Units
Class of Stock [Line Items]
Shares vested during period (in shares)					15,232	10,386
Restricted Incentive Units | Series M Units, M-1
Class of Stock [Line Items]
Restricted units, threshold value | $					$ 0
Restricted Incentive Units | Series M Units, M-2
Class of Stock [Line Items]
Restricted units, threshold value | $					2.25
Restricted Incentive Units | Series M Units, M-3
Class of Stock [Line Items]
Restricted units, threshold value | $					6.50
Restricted Incentive Units | Series M Units, M-4
Class of Stock [Line Items]
Restricted units, threshold value | $					14
Restricted Incentive Units | Series Z Units, Z-1
Class of Stock [Line Items]
Restricted units, threshold value | $					0
Restricted Incentive Units | Series Z Units, Z-2
Class of Stock [Line Items]
Restricted units, threshold value | $					1.91
Restricted Incentive Units | Series Z Units, Z-3
Class of Stock [Line Items]
Restricted units, threshold value | $					5.53
Restricted Incentive Units | Series Z Units, Z-4
Class of Stock [Line Items]
Restricted units, threshold value | $					$ 11.90

Shareholders' and Members' Eq_4

Shareholders' and Members' Equity - Schedule of Earnings per Share, Basic and Diluted (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended								4 Months Ended	8 Months Ended	12 Months Ended
	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Apr. 16, 2019	Dec. 31, 2019	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Numerator:
Basic net income attributable to Brigham Minerals, Inc. shareholders									$ 848	$ 6,053	$ 6,901	$ 1,839	$ 0
Less: net income attributable to Brigham Minerals, Inc. shareholders pre-IPO											(848)	0	0
Basic net income attributable to Brigham Minerals, Inc. shareholders post-IPO											$ 6,053	$ 0	$ 0
Denominator:
Basic weighted average shares outstanding (in shares)											22,870	0	0
Basic EPS attributable to Brigham Minerals, Inc. stockholders (in dollars per share)	$ 0.20	$ 0.14	$ (0.12)	$ 0	$ 0	$ 0	$ 0	$ 0			$ 0.26	$ 0	$ 0
Numerator:
Diluted net income attributable to Brigham Minerals, Inc. shareholders											$ 6,053	$ 0	$ 0
Denominator:
Basic weighted average shares outstanding (in shares)											22,870	0	0
Diluted weighted average shares outstanding (in shares)											22,870	0	0
Diluted EPS attributable to Brigham Minerals, Inc. stockholders (in dollars per share)	$ 0.20	$ 0.14	$ (0.12)	$ 0	$ 0	$ 0	$ 0	$ 0			$ 0.26	$ 0	$ 0

Shareholders' and Members' Eq_5

Shareholders' and Members' Equity - Schedule of Restricted Stock Activity (Details) - Restricted Incentive Units - shares	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017
Series M Units, M-1
Number of Incentive Units
Beginning balance (in shares)	7,520	7,520
Issuances (in shares)	1,030	0
Forfeitures (in shares)	0	0
Ending balance (in shares)	8,550	7,520
Series M Units, M-2
Number of Incentive Units
Beginning balance (in shares)	7,520	7,520
Issuances (in shares)	1,030	0
Forfeitures (in shares)	0	0
Ending balance (in shares)	8,550	7,520
Series M Units, M-3
Number of Incentive Units
Beginning balance (in shares)	7,520	7,520
Issuances (in shares)	1,030	0
Forfeitures (in shares)	0	0
Ending balance (in shares)	8,550	7,520
Series M Units, M-4
Number of Incentive Units
Beginning balance (in shares)	7,520	7,520
Issuances (in shares)	1,030	0
Forfeitures (in shares)	0	0
Ending balance (in shares)	8,550	7,520
Series M Units
Number of Incentive Units
Beginning balance (in shares)	30,080	30,080
Issuances (in shares)	4,120	0
Forfeitures (in shares)	0	0
Ending balance (in shares)	34,200	30,080
Series Z Units, Z-1
Number of Incentive Units
Beginning balance (in shares)	4,313	4,328
Issuances (in shares)	485	0
Forfeitures (in shares)	(105)	(15)
Ending balance (in shares)	4,693	4,313
Series Z Units, Z-2
Number of Incentive Units
Beginning balance (in shares)	4,313	4,328
Issuances (in shares)	485	0
Forfeitures (in shares)	(105)	(15)
Ending balance (in shares)	4,693	4,313
Series Z Units, Z-3
Number of Incentive Units
Beginning balance (in shares)	4,313	4,328
Issuances (in shares)	485	0
Forfeitures (in shares)	(105)	(15)
Ending balance (in shares)	4,693	4,313
Series Z Units, Z-4
Number of Incentive Units
Beginning balance (in shares)	4,313	4,328
Issuances (in shares)	485	0
Forfeitures (in shares)	(105)	(15)
Ending balance (in shares)	4,693	4,313
Series Z Units
Number of Incentive Units
Beginning balance (in shares)	17,252	17,312
Issuances (in shares)	1,940	0
Forfeitures (in shares)	(420)	(60)
Ending balance (in shares)	18,772	17,252

Share-Based Compensation - Narr

Share-Based Compensation - Narrative (Details) - $ / shares	Apr. 23, 2019	Apr. 17, 2019	Dec. 31, 2019	Dec. 31, 2018	May 08, 2015
Class B Common Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Conversion of stock, shares received (in shares)		1
Class A Common Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Conversion of stock, shares received (in shares)		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 stock, shares received (in shares)		1
Shares granted during period, grant date fair value (in dollars per share)				$ 10.04
Shares granted during period (in shares)				354,000
Shares vested during period (in shares)			3,060,000	0
RSAs
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares granted during period, grant date fair value (in dollars per share)	$ 21.25
Shares granted during period (in shares)	312,189
Shares vested during period (in shares)	152,742
Shares forfeited or converted (in shares)			10,991
Vesting increments	0.3334%
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)	$ 21.25
Shares granted during period (in shares)	598,891
Shares vested during period (in shares)			183,082
Shares forfeited (in shares)			0
Shares withheld to satisfy employee tax withholding obligations (in shares)			59,111
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)	$ 20.36
Shares granted during period (in shares)	753,546		753,546
Performance shares earned (in shares)			451,933
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%
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
Shares available for future grants (in shares)			4,416,069

Temporary Equity (Details)

Temporary Equity (Details) $ / shares in Units, $ in Thousands	Apr. 17, 2019USD ($)vote$ / sharesshares	Dec. 31, 2019USD ($)$ / sharesshares	Dec. 31, 2019USD ($)vote$ / sharesshares	Dec. 31, 2018USD ($)	Dec. 31, 2017USD ($)
Increase (Decrease) in Temporary Equity [Roll Forward]
Beginning balance	$ 518,000	$ 518,000
Conversion of Class B shares to Class A shares		(104,390)
Net income attribution		9,646	$ 9,858	$ 0	$ 0
Distribution to holders of temporary equity		(20,321)
Adjustment of temporary equity to redemption amount		51,572
Ending balance		$ 454,507	$ 454,507
Class B Common Stock
Temporary Equity [Line Items]
Number of votes per share (vote) | vote			1
Increase (Decrease) in Temporary Equity [Roll Forward]
Temporary equity (in shares) | shares	28,777,802	22,847,045	22,847,045
Temporary equity, share price (in dollars per share) | $ / shares		$ 19.89	$ 19.89
Common Class A
Temporary Equity [Line Items]
Number of votes per share (vote) | vote			1
Increase (Decrease) in Temporary Equity [Roll Forward]
Share price (in dollars per share) | $ / shares	$ 18
Existing Owners of Brigham Minerals
Temporary Equity [Line Items]
Sale of stock, ownership percentage	10.50%
Existing Owners of Brigham Minerals | Class B Common Stock
Temporary Equity [Line Items]
Sale of stock, ownership percentage	40.20%		56.70%
Number of votes per share (vote) | vote	1
Existing Owners of Brigham Minerals | Common Class A
Temporary Equity [Line Items]
Sale of stock, ownership percentage	24.20%
Initial Public Offering | Common Class A
Temporary Equity [Line Items]
Sale of stock, ownership percentage	75.80%
Increase (Decrease) in Temporary Equity [Roll Forward]
Share price (in dollars per share) | $ / shares	$ 18

Share-Based Compensation - Summ

Share-Based Compensation - Summary of Restricted Stock Unit Activity (Details) - Incentive Units - $ / shares shares in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Number of Incentive Units
Beginning balance (in shares)	3,272	2,918
Granted (in shares)		354
Vested (in shares)	(3,060)	0
Ending balance (in shares)	212	3,272
Grant-date Fair Value
Beginning balance (in dollars per share)	$ 1.49	$ 0.45
Grant-date fair value, Granted (in dollars per share)		10.04
Grant-date fair value, Vested (in dollars per share)	0.89	0
Ending balance (in dollars per share)	$ 10.04	$ 1.49

Share-Based Compensation - Weig

Share-Based Compensation - Weighted Average Assumptions (Details) - USD ($)	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Incentive Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Weighted-average grant date fair value per incentive unit (in dollars per share)	$ 10.04	$ 1.49	$ 0.45
Performance-Based Restricted Stock Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expected volatility (as a percent)	30.00%
Expected dividend yield	$ 0.081
Risk-free interest rates	2.30%
2018 Awards | Incentive Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expected volatility (as a percent)	28.00%
Expected dividend yield	$ 0
Expected term (in years)	8 months 12 days
Risk-free interest rates	2.45%
Weighted-average grant date fair value per incentive unit (in dollars per share)	$ 10.04
2015 Awards | Incentive Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expected volatility (as a percent)	33.00%
Expected dividend yield	$ 0
Expected term (in years)	3 years 8 months 12 days
Risk-free interest rates	1.07%
Weighted-average grant date fair value per incentive unit (in dollars per share)	$ 0.03
2013 Awards | Incentive Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expected volatility (as a percent)	40.00%
Expected dividend yield	$ 0
Expected term (in years)	6 years 2 months 12 days
Risk-free interest rates	0.94%
Weighted-average grant date fair value per incentive unit (in dollars per share)	$ 1.51

Share-Based Compensation - Sche

Share-Based Compensation - Schedule of Compensation Expense and Future Stock Compensation Expense (Details) - USD ($) $ in Thousands	Apr. 23, 2019	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Capitalized share-based compensation		$ (3,818)	$ 0	$ 0
Total share-based compensation expense		10,049	0	0
Future share-based compensation expense		19,333
2020
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Future share-based compensation expense		9,400
2021
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Future share-based compensation expense		9,073
2022
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Future share-based compensation expense		860
Incentive Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Compensation expense		2,904	$ 0	0
Compensation expense, cumulative effect adjustment at IPO		$ 2,000
Shares vested during period (in shares)		3,060,000	0
Future share-based compensation expense		$ 1,958
Incentive Units | 2020
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Future share-based compensation expense		712
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		3,972	$ 0	0
Compensation expense, cumulative effect adjustment at IPO		3,200
Shares vested during period (in shares)	152,742
Future share-based compensation expense		2,430
RSAs | 2020
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Future share-based compensation expense		1,052
RSAs | 2021
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Future share-based compensation expense		1,052
RSAs | 2022
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Future share-based compensation expense		326
RSUs
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Compensation expense		$ 4,630	0	0
Shares vested during period (in shares)		183,082
Future share-based compensation expense		$ 8,107
RSUs | 2020
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Future share-based compensation expense		4,217
RSUs | 2021
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Future share-based compensation expense		3,890
RSUs | 2022
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Future share-based compensation expense		0
PSUs
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Compensation expense		2,361	$ 0	$ 0
Future share-based compensation expense		6,838
PSUs | 2020
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Future share-based compensation expense		3,419
PSUs | 2021
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Future share-based compensation expense		3,419
PSUs | 2022
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Future share-based compensation expense		$ 0

Income Taxes - Narrative (Detai

Income Taxes - Narrative (Details) - USD ($) $ / shares in Units, $ in Thousands	Dec. 16, 2019	Apr. 17, 2019	Sep. 30, 2019	Dec. 31, 2019	Dec. 30, 2019	Sep. 30, 2019	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017	Jul. 31, 2018
Operating Loss Carryforwards [Line Items]
Net deferred tax liability resulting from corporate reorganization				$ 198			$ 198	$ 3,684		$ 3,100
Deferred tax asset arising from the IPO			$ 13,700	13,664
Effective income tax rate (as a percent)							11.00%
Total income tax provision							$ 2,679	$ 327	$ 1,008
Federal statutory tax rate (as a percent)						21.00%
Deferred tax assets				18,800			$ 18,800
December Offering
Operating Loss Carryforwards [Line Items]
Deferred tax asset arising from the IPO				$ 9,508
Deferred tax asset arising from issuance of common stock in the December 2019 Offering					$ 9,500
Class A Common Stock
Operating Loss Carryforwards [Line Items]
Share price (in dollars per share)		$ 18
Class A Common Stock | Initial Public Offering
Operating Loss Carryforwards [Line Items]
Sale of stock, number of shares issued (in shares)		16,675,000
Share price (in dollars per share)		$ 18
Class A Common Stock | December Offering
Operating Loss Carryforwards [Line Items]
Sale of stock, number of shares issued (in shares)	12,650,000
Class A Common Stock | December Offering, Company
Operating Loss Carryforwards [Line Items]
Sale of stock, number of shares issued (in shares)	6,000,000
Class A Common Stock | December Offering, Selling Shareholders
Operating Loss Carryforwards [Line Items]
Sale of stock, number of shares issued (in shares)	6,650,000
Share price (in dollars per share)	$ 18.10
Class A Common Stock | December Offering, Equivalent Units Issued
Operating Loss Carryforwards [Line Items]
Sale of stock, number of shares issued (in shares)	5,496,813

Income Taxes - Schedule of Comp

Income Taxes - Schedule of Components of Income Tax Expense (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Income Tax Disclosure [Abstract]
Current (benefit)/expense	$ 692	$ (23)	$ 713
Deferred (benefit)/expense	63	(138)	295
Current expense	1,322	114	0
Deferred expense	602	374	0
Total income tax provision	2,679	327	1,008
Total current income taxes	2,014	91	713
Total deferred income taxes	$ 665	$ 236	$ 295

Income Taxes - Reconciliation o

Income Taxes - Reconciliation of Income Tax Expense With Income Tax Provision (Details) - USD ($) $ in Thousands	8 Months Ended	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Income Tax Disclosure [Abstract]
Income before income taxes		$ (24,318)	$ (33,142)	$ (116,620)
Less: income before income taxes attributable to predecessor		(5,118)	(30,805)	(116,620)
Less: income before income taxes attributable to temporary equity	$ (9,646)	(9,858)	0	0
Income before income taxes attributable to shareholders		9,342	2,337	0
Income tax at the federal statutory rate		1,962	491	0
State income taxes, net of federal benefit		717	(150)	1,008
Percentage depletion in excess of basis		0	(14)	0
Total income tax provision		$ 2,679	$ 327	$ 1,008

Income Taxes - Schedule of Defe

Income Taxes - Schedule of Deferred Tax Assets and Liabilities (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018	Jul. 31, 2018
Deferred Tax Assets, Gross [Abstract]
Investment in subsidiary	$ 19,021	$ 0
Total deferred tax assets:	19,021	0
Deferred tax liabilities:
Oil and gas properties	(198)	(208)
Investment in subsidiary	0	(3,476)
Net noncurrent deferred tax liabilities	$ (198)	$ (3,684)	$ (3,100)

Commitments and Contingencies_2

Commitments and Contingencies (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Commitments and Contingencies Disclosure [Abstract]
Rent expense	$ 600	$ 300	$ 200
2020	1,000
2021	1,345
2022	1,419
2023	1,492
2024	1,566
2025 and Thereafter	4,312
Total	$ 11,134

Related Party Transactions (Det

Related Party Transactions (Details) - USD ($) $ in Millions	3 Months Ended	12 Months Ended
	Sep. 30, 2018	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Land Brokerage Services | Brigham Land Management
Related Party Transaction [Line Items]
Related party transaction, amount		$ 0.1	$ 0.1	$ 0.6
Leasing of Acreage Arrangement | Ben M. Brigham
Related Party Transaction [Line Items]
Amount received from related party		$ 0.4	0	$ 0.6
Borrowings From Related Party | Brigham Operating
Related Party Transaction [Line Items]
Related party transaction, amount			$ 7
Related party transaction, interest rate (as a percent)	7.00%

Quarterly Financial Informati_3

Quarterly Financial Information-Unaudited Quarterly Financial Information-Unaudited (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Quarterly Financial Information Disclosure [Abstract]
Total revenues	$ 33,614	$ 25,107	$ 24,529	$ 18,265	$ 17,591	$ 18,701	$ 16,889	$ 14,083	$ 101,515	$ 67,264	$ 40,908
Income from operations	14,362	9,115	5,034	8,707	8,732	11,716	10,564	8,219	37,218	39,231	121,214
Net income	12,346	8,464	(3,207)	4,036	7,114	8,153	9,351	8,197	$ 21,639	$ 32,815	$ 115,612
Net income attributable to shareholders	$ 5,077	$ 3,146	$ (1,856)	$ 534	$ 948	$ 891	$ 0	$ 0
Basic EPS attributable to Brigham Minerals, Inc. stockholders (in dollars per share)	$ 0.20	$ 0.14	$ (0.12)	$ 0	$ 0	$ 0	$ 0	$ 0	$ 0.26	$ 0	$ 0
Diluted EPS attributable to Brigham Minerals, Inc. stockholders (in dollars per share)	$ 0.20	$ 0.14	$ (0.12)	$ 0	$ 0	$ 0	$ 0	$ 0	$ 0.26	$ 0	$ 0

Subsequent Events (Details)

Subsequent Events (Details) - Subsequent Event - USD ($)	Feb. 27, 2020	Feb. 25, 2020
New Revolving Credit Facility
Subsequent Event [Line Items]
Line of credit, borrowing base		$ 180,000,000
Common Class A
Subsequent Event [Line Items]
Dividends declared (in dollars per share)	$ 0.38

Reserve and Related Financial_3

Reserve and Related Financial Data (SMOG) - Unaudited - Schedule of Proved Reserve Quantities (Details) MMcf in Thousands, MBoe in Thousands, MBbls in Thousands	12 Months Ended
	Dec. 31, 2019MBoeMBblsMMcf	Dec. 31, 2018MBoeMBblsMMcf	Dec. 31, 2017MBoeMBblsMMcf
Proved Developed and Undeveloped Reserve (Energy) [Roll Forward]
Beginning balance | MBoe	26,741	19,104	13,363
Sales of minerals-in-place | MBoe	(409)	0	(1,627)
Extensions and discoveries | MBoe	4,110	3,208	3,259
Acquisitions | MBoe	7,651	7,354	4,820
Revisions of previous estimates | MBoe	(2,299)	1,508	(147)
Production | MBoe	(2,706)	(1,417)	(858)
Ending balance | MBoe	33,088	26,741	19,104
Proved reserve quantities at December 31, 2019 attributable to temporary equity | MBoe	13,289
Proved developed reserve quantities | MBoe	17,957	11,588	6,160
Proved developed reserves at December 31, 2019 attributable to temporary equity | MBoe	7,212
Proved undeveloped reserve quantities | MBoe	15,131	15,153	12,944
Proved undeveloped reserves at December 31, 2019 attributable to temporary equity | MBoe	6,077
Crude Oil (MBbl)
Proved Developed and Undeveloped Reserves [Roll Forward]
Beginning balance	12,991	8,724	7,174
Sales of minerals-in-place	(182)	0	(1,291)
Extensions and discoveries	1,997	1,765	1,548
Acquisitions	4,256	3,669	2,141
Revisions of previous estimates	(586)	390	394
Production	(1,515)	(777)	(454)
Ending balance	16,961	12,991	8,724
Proved reserve quantities at December 31, 2019 attributable to temporary equity	6,812
Proved Developed and Undeveloped Reserve (Energy) [Roll Forward]
Proved developed reserve quantities	9,924	6,067	2,804
Proved developed reserves at December 31, 2019 attributable to temporary equity	3,986
Proved undeveloped reserve quantities	7,037	6,924	5,920
Proved undeveloped reserves at December 31, 2019 attributable to temporary equity	2,826
Natural Gas (Mmcf)
Proved Developed and Undeveloped Reserves [Roll Forward]
Beginning balance | MMcf	51,796	38,401	22,991
Sales of minerals-in-place | MMcf	(697)	0	(815)
Extensions and discoveries | MMcf	7,780	5,285	6,012
Acquisitions | MMcf	13,053	13,862	9,380
Revisions of previous estimates | MMcf	(5,495)	3,245	(2,601)
Production | MMcf	(4,707)	(2,507)	(1,768)
Ending balance | MMcf	61,730	51,796	38,401
Proved reserve quantities at December 31, 2019 attributable to temporary equity | MMcf	24,792
Proved Developed and Undeveloped Reserve (Energy) [Roll Forward]
Proved developed reserve quantities | MMcf	33,232	21,735	13,028
Proved developed reserves at December 31, 2019 attributable to temporary equity | MMcf	13,346
Proved undeveloped reserve quantities | MMcf	28,498	30,061	25,373
Proved undeveloped reserves at December 31, 2019 attributable to temporary equity | MMcf	11,445
NGL (MBbl)
Proved Developed and Undeveloped Reserves [Roll Forward]
Beginning balance	5,117	3,980	2,356
Sales of minerals-in-place	(110)	0	(200)
Extensions and discoveries	817	562	709
Acquisitions	1,218	1,374	1,116
Revisions of previous estimates	(797)	577	(108)
Production	(407)	(222)	(109)
Ending balance	5,838	5,117	3,980
Proved reserve quantities at December 31, 2019 attributable to temporary equity	2,345
Proved Developed and Undeveloped Reserve (Energy) [Roll Forward]
Proved developed reserve quantities	2,494	1,898	1,185
Proved developed reserves at December 31, 2019 attributable to temporary equity	1,002
Proved undeveloped reserve quantities	3,344	3,219	2,795
Proved undeveloped reserves at December 31, 2019 attributable to temporary equity	1,343

Reserve and Related Financial_4

Reserve and Related Financial Data (SMOG) - Unaudited - Narrative (Details) MBoe in Thousands	12 Months Ended
	Dec. 31, 2019MBoewell	Dec. 31, 2018MBoewell	Dec. 31, 2017MBoewell
Reserve Quantities [Line Items]
Proved developed reserve quantities	7,651	7,354	4,820
Divestiture through sale of mineral and royalty interests	409	0	1,627
Extensions and discoveries	4,110	3,208	3,259
Number of well locations | well	900	555	854
Revisions of previous estimates	2,299	(1,508)	147
Permian, DJ, Anadarko and Williston Basins
Reserve Quantities [Line Items]
Additional proved reserves	7,242
Proved developed reserve quantities	7,651	7,354	4,820
Divestiture through sale of mineral and royalty interests	409
Permian Basin
Reserve Quantities [Line Items]
Divestiture through sale of mineral and royalty interests			1,627
Revisions To Pricing
Reserve Quantities [Line Items]
Revisions of previous estimates	(902)	536
Revisions Attributable to Operator Development Timing
Reserve Quantities [Line Items]
Revisions of previous estimates	(1,397)	(1,100)	(2,434)
Revisions Associated With Unit Configuration and EUR Adjustments
Reserve Quantities [Line Items]
Revisions of previous estimates		(944)
Revisions Attributable to Increased Recovery
Reserve Quantities [Line Items]
Revisions of previous estimates			2,581
Minimum
Reserve Quantities [Line Items]
Average sales price, percent	13.00%
Maximum
Reserve Quantities [Line Items]
Average sales price, percent	30.00%

Reserve and Related Financial_5

Reserve and Related Financial Data (SMOG) - Unaudited - Standardized Measure of Discounted Future Net Cash Flow (Details) MBoe in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2019USD ($)MBoe$ / bbl$ / MMBTU	Dec. 31, 2018USD ($)MBoe$ / bbl$ / MMBTU	Dec. 31, 2017USD ($)MBoe$ / bbl$ / MMBTU	Dec. 31, 2016USD ($)
Discounted Future Net Cash Flows Relating to Proved Oil and Gas Reserves [Line Items]
Proved developed reserve quantities | MBoe	17,957	11,588	6,160
Future crude oil, natural gas, and NGL sales	$ 1,042,118	$ 1,049,141	$ 595,874
Future severance tax and ad valorem taxes	(73,627)	(70,248)	(40,225)
Future income tax expense	(143,599)	(144,421)	(1,151)
Future net cash flows	824,892	834,472	554,498
10% annual discount	(359,258)	(391,013)	(238,030)
Standardized measure of discounted future net cash flows	465,634	443,459	316,468	$ 185,752
Standardized measure of discounted future net cash flows attributable to temporary equity	$ 186,999	$ 0	$ 0
Oil (per Bbl)
Discounted Future Net Cash Flows Relating to Proved Oil and Gas Reserves [Line Items]
Prices used in determination of standardized measure (in dollars per unit) | $ / bbl	51.01	61.31	47.80
Natural gas (per Mcf)
Discounted Future Net Cash Flows Relating to Proved Oil and Gas Reserves [Line Items]
Prices used in determination of standardized measure (in dollars per unit) | $ / MMBTU	1.51	2.51	2.74
NGLs (per Bbl)
Discounted Future Net Cash Flows Relating to Proved Oil and Gas Reserves [Line Items]
Prices used in determination of standardized measure (in dollars per unit) | $ / bbl	14.39	23.98	18.56

Reserve and Related Financial_6

Reserve and Related Financial Data (SMOG) - Unaudited - Principal Sources of Change in Standardized Measure of Discounted Net Cash Flows (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Increase (Decrease) in Standardized Measure of Discounted Future Net Cash Flows Relating to Proved Oil and Gas Reserves [Roll Forward]
Standardized measure of discounted future net cash flows, beginning of the year	$ 443,459	$ 316,468	$ 185,752
Sales, less production costs	(86,492)	(52,278)	(26,711)
Revisions of previous quantity estimates	(41,539)	(22,942)	4,894
Extensions, discoveries, and other additions	69,057	71,668	56,511
Net change in prices and production costs	(99,660)	71,770	30,565
Accretion of discount	51,949	31,713	18,612
Purchase of reserves in place	137,819	148,580	79,190
Divestitures of reserves in place	(5,783)	0	(26,742)
Net change in taxes	(5,739)	(75,369)	(298)
Timing differences and other	2,563	(46,151)	(5,305)
Standardized measure of discounted future net cash flows, end of the year	$ 465,634	$ 443,459	$ 316,468

Reserve and Related Financial_7

Reserve and Related Financial Data (SMOG) - Unaudited - Capitalized Costs (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Extractive Industries [Abstract]
Not subject to depletion	$ 291,664	$ 228,151	$ 168,691
Subject to depletion	449,061	289,851	152,354
Total oil and gas properties, at cost	740,725	518,002	321,045
Less accumulated depreciation, depletion, and amortization	(61,103)	(27,628)	(14,210)
Total oil and gas properties, net	$ 679,622	$ 490,374	$ 306,835

Reserve and Related Financial_8

Reserve and Related Financial Data (SMOG) - Unaudited - Costs Incurred In Acquisition of Properties (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Extractive Industries [Abstract]
Unevaluated	$ 78,093	$ 59,460	$ 50,224
Evaluated	140,025	137,496	51,862
Total	$ 218,118	$ 196,956	$ 102,086