Table of Contents

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 10-Q

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

For the quarterly period ended March 31, 20222023 or

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

Commission file number:

 001-31465

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NATURAL RESOURCE PARTNERS LP

(Exact name of registrant as specified in its charter)

Delaware

35-2164875

Delaware35-2164875

(State or other jurisdiction of

incorporation or organization)

(I.R.S. Employer

Identification No.)

1201

1415 Louisiana Street, Suite 3400

3325

Houston, Texas 77002

(Address of principal executive offices)

(Zip Code)

(713) 751-7507

(Registrant’sRegistrants telephone number, including area code)

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

Title of each class

Trading Symbol(s)

Name of each exchange on which registered

Common Units representing limited partner interests

NRP

New York Stock Exchange

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

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

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

Large Accelerated Filer

Accelerated Filer

Non-accelerated Filer

  (Do not check if a smaller reporting company)

Smaller Reporting Company

Emerging Growth Company

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

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

APPLICABLE ONLY TO ISSUERS INVOLVED IN BANKRUPTCY PROCEEDINGS DURING THE PRECEDING FIVE YEARS:

Indicate by check mark whether the registrant has filed all documents and reports required to be filed by Section 12, 13 or 15(d) of the Securities Exchange Act of 1934 subsequent to the distribution of securities under a plan confirmed by a court.  Yes     No  

APPLICABLE ONLY TO CORPORATE ISSUERS

Indicate the number of shares outstanding of each of the issuer’s classes of common stock, as of the latest practicable date.







NATURAL RESOURCE PARTNERS, L.P.

TABLE OF CONTENTS

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Exhibits

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Signatures27

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i





PART I. FINANCIAL INFORMATION

ITEM 1. CONSOLIDATED FINANCIAL STATEMENTS


NATURAL RESOURCE PARTNERS L.P.

CONSOLIDATED BALANCE SHEETS

  

March 31,

  

December 31,

 
  2023  2022 

(In thousands, except unit data)

 

(Unaudited)

    

ASSETS

        

Current assets

        

Cash and cash equivalents

 $17,655  $39,091 

Accounts receivable, net

  36,513   42,701 

Other current assets, net

  3,216   1,822 

Total current assets

 $57,384  $83,614 

Land

  24,008   24,008 

Mineral rights, net

  408,371   412,312 

Intangible assets, net

  14,613   14,713 

Equity in unconsolidated investment

  295,361   306,470 

Long-term contract receivable, net

  28,309   28,946 

Other long-term assets, net

  7,622   7,068 

Total assets

 $835,668  $877,131 

LIABILITIES AND CAPITAL

        

Current liabilities

        

Accounts payable

 $1,452  $1,992 

Accrued liabilities

  3,466   11,916 

Accrued interest

  1,252   989 

Current portion of deferred revenue

  7,450   6,256 

Current portion of long-term debt, net

  39,055   39,076 

Total current liabilities

 $52,675  $60,229 

Deferred revenue

  38,833   40,181 

Long-term debt, net

  133,821   129,205 

Other non-current liabilities

  6,124   5,472 

Total liabilities

 $231,453  $235,087 

Commitments and contingencies (see Note 13)

          

Class A Convertible Preferred Units (202,501 and 250,000 units issued and outstanding at March 31, 2023 and December 31, 2022, respectively, at $1,000 par value per unit; liquidation preference of $1,850 per unit at March 31, 2023 and December 31, 2022) (See Note 3)

 $133,316  $164,587 

Partners’ capital

        

Common unitholders’ interest (12,634,642 and 12,505,996 units issued and outstanding at March 31, 2023 and December 31, 2022, respectively)

 $417,401  $404,799 

General partner’s interest

  6,400   5,977 

Warrant holders’ interest

  47,964   47,964 

Accumulated other comprehensive income (loss)

  (866)  18,717 

Total partners’ capital

 $470,899  $477,457 

Total liabilities and partners' capital

 $835,668  $877,131 

March 31,December 31,
(In thousands, except unit data)20222021
ASSETS(Unaudited)
Current assets
Cash and cash equivalents$135,590 $135,520 
Accounts receivable, net32,729 24,538 
Other current assets, net3,510 2,723 
Total current assets$171,829 $162,781 
Land24,008 24,008 
Mineral rights, net433,965 437,697 
Intangible assets, net16,019 16,130 
Equity in unconsolidated investment280,156 276,004 
Long-term contract receivable, net30,783 31,371 
Other long-term assets, net5,528 5,832 
Total assets$962,288 $953,823 
LIABILITIES AND CAPITAL
Current liabilities
Accounts payable$1,896 $1,956 
Accrued liabilities3,388 10,297 
Accrued interest8,463 1,213 
Current portion of deferred revenue15,420 11,817 
Current portion of long-term debt, net39,046 39,102 
Total current liabilities$68,213 $64,385 
Deferred revenue39,126 50,045 
Long-term debt, net378,163 394,443 
Other non-current liabilities4,803 5,018 
Total liabilities$490,305 $513,891 
Commitments and contingencies (see Note 12)00
Class A Convertible Preferred Units (250,000 and 269,321 units issued and outstanding at March 31, 2022 and December 31, 2021, respectively, at $1,000 par value per unit; liquidation preference of $1,850 per unit at March 31, 2022 and December 31, 2021)$164,587 $183,908 
Partners’ capital
Common unitholders’ interest (12,505,996 and 12,351,306 units issued and outstanding at March 31, 2022 and December 31, 2021, respectively)$250,767 $203,062 
General partner’s interest2,909 1,787 
Warrant holders’ interest47,964 47,964 
Accumulated other comprehensive income5,756 3,211 
Total partners’ capital$307,396 $256,024 
Total liabilities and partners' capital$962,288 $953,823 

The accompanying notes are an integral part of these consolidated financial statements.

1

NATURAL RESOURCE PARTNERS L.P.

CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME

(Unaudited)

  

For the Three Months Ended March 31,

 

(In thousands, except per unit data)

 

2023

  

2022

 

Revenues and other income

        

Royalty and other mineral rights

 $76,271  $71,083 

Transportation and processing services

  3,598   3,796 

Equity in earnings of Sisecam Wyoming

  19,254   14,837 

Gain on asset sales and disposals

  96    

Total revenues and other income

 $99,219  $89,716 
         

Operating expenses

        

Operating and maintenance expenses

 $7,163  $8,076 

Depreciation, depletion and amortization

  4,083   3,868 

General and administrative expenses

  5,845   4,467 

Asset impairments

     19 

Total operating expenses

 $17,091  $16,430 
         

Income from operations

 $82,128  $73,286 
         

Interest expense, net

 $(2,853) $(9,387)
         

Net income

 $79,275  $63,899 

Less: income attributable to preferred unitholders

  (6,661)  (7,500)

Less: redemption of preferred units

  (16,228)   

Net income attributable to common unitholders and the general partner

 $56,386  $56,399 
         

Net income attributable to common unitholders

 $55,258  $55,271 

Net income attributable to the general partner

  1,128   1,128 
         

Net income per common unit (see Note 5)

        

Basic

 $4.40  $4.45 

Diluted

  3.44   3.11 
         

Net income

 $79,275  $63,899 

Comprehensive income (loss) from unconsolidated investment and other

  (19,583)  2,545 

Comprehensive income

 $59,692  $66,444 
(Unaudited)
 For the Three Months Ended March 31,
(In thousands, except per unit data)20222021
Revenues and other income
Royalty and other mineral rights$71,083 $32,927 
Transportation and processing services3,796 2,192 
Equity in earnings of Sisecam Wyoming14,837 1,973 
Gain on asset sales and disposals— 59 
Total revenues and other income$89,716 $37,151 
Operating expenses
Operating and maintenance expenses$8,076 $5,552 
Depreciation, depletion and amortization3,868 5,092 
General and administrative expenses4,467 4,110 
Asset impairments19 4,043 
Total operating expenses$16,430 $18,797 
Income from operations$73,286 $18,354 
Interest expense, net$(9,387)$(9,973)
Net income$63,899 $8,381 
Less: income attributable to preferred unitholders(7,500)(7,727)
Net income attributable to common unitholders and the general partner$56,399 $654 
Net income attributable to common unitholders$55,271 $641 
Net income attributable to the general partner1,128 13 
Net income per common unit (see Note 4)
Basic$4.45 $0.05 
Diluted3.11 0.05 
Net income$63,899 $8,381 
Comprehensive income from unconsolidated investment and other2,545 732 
Comprehensive income$66,444 $9,113 

The accompanying notes are an integral part of these consolidated financial statements.

2

NATURAL RESOURCE PARTNERS L.P.

CONSOLIDATED STATEMENTS OF PARTNERS’PARTNERS CAPITAL

(Unaudited)

                  

Accumulated

     
                  

Other

  

Total

 
  

Common Unitholders

  

General

  

Warrant

  

Comprehensive

  

Partners'

 

(In thousands)

 

Units

  

Amounts

  

Partner

  

Holders

  

Income (Loss)

  

Capital

 

Balance at December 31, 2022

  12,506  $404,799  $5,977  $47,964  $18,717  $477,457 

Net income (1)

     77,690   1,585         79,275 

Redemption of preferred units

     (15,904)  (324)        (16,228)

Distributions to common unitholders and the general partner

     (40,082)  (818)        (40,900)

Distributions to preferred unitholders

     (7,924)  (162)        (8,086)

Issuance of unit-based awards

  129                

Unit-based awards amortization and vesting, net

     (1,178)           (1,178)

Capital contribution

        142         142 

Comprehensive loss from unconsolidated investment and other

              (19,583)  (19,583)

Balance at March 31, 2023

  12,635  $417,401  $6,400  $47,964  $(866) $470,899 
(Unaudited)

 Common UnitholdersGeneral PartnerWarrant HoldersAccumulated
Other
Comprehensive Income
Total Partners' Capital
 
(In thousands)UnitsAmounts
Balance at December 31, 202112,351 $203,062 $1,787 $47,964 $3,211 $256,024 
Net income (1)
— 62,621 1,278 — — 63,899 
Distributions to common unitholders and the general partner— (5,559)(113)— — (5,672)
Distributions to preferred unitholders— (7,603)(155)— — (7,758)
Issuance of unit-based awards155 — — — — — 
Unit-based awards amortization and vesting, net— (1,754)— — — (1,754)
Capital contribution— — 112 — — 112 
Comprehensive income from unconsolidated investment and other— — — — 2,545 2,545 
Balance at March 31, 202212,506 $250,767 $2,909 $47,964 $5,756 $307,396 

(1)

Net income includes $6.7 million of income attributable to preferred unitholders that accumulated during the period, of which $6.5 million is allocated to the common unitholders and $0.1 million is allocated to the general partner.

                  

Accumulated

     
                  

Other

  

Total

 
  

Common Unitholders

  

General

  

Warrant

  

Comprehensive

  

Partners'

 

(In thousands)

 

Units

  

Amounts

  

Partner

  

Holders

  

Income

  

Capital

 

Balance at December 31, 2021

  12,351  $203,062  $1,787  $47,964  $3,211  $256,024 

Net income (1)

     62,621   1,278         63,899 

Distributions to common unitholders and the general partner

     (5,559)  (113)        (5,672)

Distributions to preferred unitholders

     (7,603)  (155)        (7,758)

Issuance of unit-based awards

  155                

Unit-based awards amortization and vesting, net

     (1,754)           (1,754)

Capital contribution

        112         112 

Comprehensive income from unconsolidated investment and other

              2,545   2,545 

Balance at March 31, 2022

  12,506  $250,767  $2,909  $47,964  $5,756  $307,396 

(1)

Net income includes $7.5 million of income attributable to preferred unitholders that accumulated during the period, of which $7.4 million is allocated to the common unitholders and $0.2 million is allocated to the general partner.

(1)Net income includes $7.5 million of income attributable to preferred unitholders that accumulated during the period, of which $7.4 million is allocated to the common unitholders and $0.2 million is allocated to the general partner.
 Common UnitholdersGeneral PartnerWarrant HoldersAccumulated
Other
Comprehensive
Income
Total Partners' Capital
 
(In thousands)UnitsAmounts
Balance at December 31, 202012,261 $136,927 $459 $66,816 $322 $204,524 
Net income (1)
— 8,213 168 — — 8,381 
Distributions to common unitholders and the general partner— (5,517)(113)— — (5,630)
Distributions to preferred unitholders— (7,461)(152)— — (7,613)
Issuance of unit-based awards90 — — — — — 
Unit-based awards amortization and vesting, net— 215 — — — 215 
Capital contribution— — 32 — — 32 
Comprehensive income from unconsolidated investment and other— — — — 732 732 
Balance at March 31, 202112,351 $132,377 $394 $66,816 $1,054 $200,641 
(1)Net income includes $7.7 million of income attributable to preferred unitholders that accumulated during the period, of which $7.6 million is allocated to the common unitholders and $0.2 million is allocated to the general partner.



The accompanying notes are an integral part of these consolidated financial statements.

3

NATURAL RESOURCE PARTNERS L.P.

CONSOLIDATED STATEMENTS OF CASH FLOWS

(Unaudited)

  

For the Three Months Ended March 31,

 

(In thousands)

 

2023

  

2022

 

Cash flows from operating activities

        

Net income

 $79,275  $63,899 

Adjustments to reconcile net income to net cash provided by operating activities:

        

Depreciation, depletion and amortization

  4,083   3,868 

Distributions from unconsolidated investment

  10,780   13,230 

Equity earnings from unconsolidated investment

  (19,254)  (14,837)

Gain on asset sales and disposals

  (96)   

Asset impairments

     19 

Bad debt expense

  (610)  1,028 

Unit-based compensation expense

  2,491   1,448 

Amortization of debt issuance costs and other

  25   375 

Change in operating assets and liabilities:

        

Accounts receivable

  7,061   (7,579)

Accounts payable

  (541)  (60)

Accrued liabilities

  (8,805)  (7,156)

Accrued interest

  263   7,250 

Deferred revenue

  (154)  (7,316)

Other items, net

  (1,618)  (1,838)

Net cash provided by operating activities

 $72,900  $52,331 
         

Cash flows from investing activities

        

Proceeds from asset sales and disposals

 $101  $ 

Return of long-term contract receivable

  598    

Capital expenditures

  (2)   

Net cash provided by investing activities

 $697  $ 
         

Cash flows from financing activities

        

Debt borrowings

 $94,200  $ 

Debt repayments

  (89,696)  (16,697)

Distributions to common unitholders and the general partner

  (40,900)  (5,672)

Distributions to preferred unitholders

  (7,500)  (7,500)

Redemption of preferred units

  (48,085)   

Redemption of preferred units paid-in-kind

     (19,579)

Other items, net

  (3,052)  (2,813)

Net cash used in financing activities

 $(95,033) $(52,261)
         

Net increase (decrease) in cash and cash equivalents

 $(21,436) $70 

Cash and cash equivalents at beginning of period

  39,091   135,520 

Cash and cash equivalents at end of period

 $17,655  $135,590 
         

Supplemental cash flow information:

        

Cash paid for interest

 $2,474  $1,644 
(Unaudited)


 For the Three Months Ended March 31,
(In thousands)20222021
Cash flows from operating activities
Net income$63,899 $8,381 
Adjustments to reconcile net income to net cash provided by operating activities of continuing operations:
Depreciation, depletion and amortization3,868 5,092 
Distributions from unconsolidated investment13,230 3,920 
Equity earnings from unconsolidated investment(14,837)(1,973)
Gain on asset sales and disposals— (59)
Asset impairments19 4,043 
Bad debt expense1,028 383 
Unit-based compensation expense1,448 1,126 
Amortization of debt issuance costs and other375 269 
Change in operating assets and liabilities:
Accounts receivable(7,579)(3,331)
Accounts payable(60)(10)
Accrued liabilities(7,156)(3,034)
Accrued interest7,250 7,133 
Deferred revenue(7,316)(146)
Other items, net(1,838)1,406 
Net cash provided by operating activities$52,331 $23,200 
Cash flows from investing activities
Proceeds from asset sales and disposals$— $59 
Return of long-term contract receivable— 541 
Net cash provided by investing activities$— $600 
Cash flows from financing activities
Debt repayments$(16,697)$(16,696)
Distributions to common unitholders and the general partner(5,672)(5,630)
Distributions to preferred unitholders(7,500)(3,806)
Redemption of preferred units paid-in-kind(19,579)— 
Other items(2,813)(691)
Net cash used in financing activities$(52,261)$(26,823)
Net increase (decrease) in cash and cash equivalents$70 $(3,023)
Cash and cash equivalents at beginning of period135,520 99,790 
Cash and cash equivalents at end of period$135,590 $96,767 
Supplemental cash flow information:
Cash paid for interest$1,644 $2,320 
Non-cash investing and financing activities:
Plant, equipment, mineral rights and other funded with accounts payable or accrued liabilities$— $992 
Preferred unit distributions paid-in-kind— 3,806 

The accompanying notes are an integral part of these consolidated financial statements.

4

NATURAL RESOURCE PARTNERS L.P.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

(Unaudited)

(Unaudited)


1.Basis of Presentation

Nature of Business

Natural Resource Partners L.P. (the "Partnership") engages principally in the business of owning, managing and leasing a diversified portfolio of mineral properties in the United States, including interests in coal and other natural resources and owns a non-controlling 49% interest in Sisecam Wyoming LLC ("Sisecam Wyoming"), a trona ore mining and soda ash production business. The Partnership is organized into 2two operating segments further described in Note 5.6. Segment Information. The Partnership’s operations are conducted through, and its operating assets are owned by, its subsidiaries. The Partnership owns its subsidiaries through one wholly owned operating company, NRP (Operating) LLC ("Opco"). As used in these Notes to Consolidated Financial Statements, the terms "NRP," "we," "us" and "our" refer to Natural Resource Partners L.P. and its subsidiaries, unless otherwise stated or indicated by context.

Principles of Consolidation and Reporting

The accompanying unaudited Consolidated Financial Statements of the Partnership have been prepared in accordance with generally accepted accounting principles in the United States of America ("GAAP") for interim financial information and with Rule 10-0110-01 of Regulation S-X.S-X. Accordingly, they do not include all of the information and footnotes required by GAAP for complete financial statements. These financial statements should be read in conjunction with the financial statements for the year ended December 31, 20212022 and notes thereto included in the Partnership's Annual Report on Form 10-K,10-K, which was filed with the SEC on March 15, 2022. Certain reclassifications3, 2023. 

Recently Adopted Accounting Standard

On January 1, 2023, NRP adopted Accounting Standards Update ("ASU") 2020-06, Debt – Debt with Conversion and Other Options (Subtopic 470-20) and Derivatives and Hedging – Contracts in Entity’s Own Equity (Subtopic 815-40) (“ASU 2020-06)”. The ASU includes targeted improvements to earnings per share, which the Partnership adopted on a modified retrospective basis. The adoption of this ASU did not have been made to prior year amounts ina material impact on the Notes toPartnership’s Consolidated Financial Statements to conform with current year presentation. These reclassifications had no impact on previously reported total assets, total liabilities, partners' capital,Statements. See Note 5. Net Income Per Common Unit for the calculations of our basic and diluted net income or cash flows from operating, investing or financing activities.per common unit. See Note 3. Class A Convertible Preferred Units and Warrants for disclosures related to our convertible preferred units and warrants.

5


NATURAL RESOURCE PARTNERS L.P.
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—CONTINUED
(Unaudited)

2.Revenues from Contracts with Customers

The following table presents the Partnership's Mineral Rights segment revenues by major source:

For the Three Months Ended March 31,
(In thousands)20222021
Coal royalty revenues$55,449 $15,365 
Production lease minimum revenues1,592 3,450 
Minimum lease straight-line revenues4,783 6,096 
Property tax revenues1,472 1,469 
Wheelage revenues3,717 1,781 
Coal overriding royalty revenues258 1,859 
Lease amendment revenues880 868 
Aggregates royalty revenues770 454 
Oil and gas royalty revenues1,814 1,366 
Other revenues348 219 
Royalty and other mineral rights revenues$71,083 $32,927 
Transportation and processing services revenues (1)
3,796 2,192 
Total Mineral Rights segment revenues$74,879 $35,119 

  

For the Three Months Ended March 31,

 

(In thousands)

 

2023

  

2022

 

Coal royalty revenues

 $58,023  $55,449 

Production lease minimum revenues

  613   1,592 

Minimum lease straight-line revenues

  4,503   4,783 

Carbon neutral initiative revenues

  2,118    

Property tax revenues

  1,470   1,472 

Wheelage revenues

  3,869   3,717 

Coal overriding royalty revenues

  188   258 

Lease amendment revenues

  851   880 

Aggregates royalty revenues

  753   770 

Oil and gas royalty revenues

  3,588   1,814 

Other revenues

  295   348 

Royalty and other mineral rights revenues

 $76,271  $71,083 

Transportation and processing services revenues (1)

  3,598   3,796 

Total Mineral Rights segment revenues

 $79,869  $74,879 
(1)

Transportation and processing services revenues from contracts with customers as defined under ASC 606 was $2.9 million and $3.1 million for the three months ended March 31, 2023 and 2022, respectively. The remaining transportation and processing services revenues of $0.7 million and $0.7 million for the three months ended March 31, 2023 and 2022, respectively, related to other NRP-owned infrastructure leased to and operated by third-party operators accounted for under other guidance. See Note 15. Financing Transactionfor more information.

(1)Transportation and processing services revenues from contracts with customers as defined under ASC 606 was $3.1 million and $1.2 million for the three months ended March 31, 2022 and 2021, respectively. The remaining transportation and processing services revenues of $0.7 million and $0.9 million for the three months ended March 31, 2022 and 2021, respectively, related to other NRP-owned infrastructure leased to and operated by third-party operators accounted for under other guidance. See Note 14. Financing Transaction for more information.




5

Table of Contents
NATURAL RESOURCE PARTNERS L.P.
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—CONTINUED
(Unaudited)

The following table details the Partnership's Mineral Rights segment receivables and liabilities resulting from contracts with customers:

March 31,December 31,
(In thousands)20222021
Receivables
Accounts receivable, net$29,131 $22,277 
Other current assets, net (1)
2,063 769 
Other long-term assets, net (2)
250 250 
Contract liabilities
Current portion of deferred revenue$15,420 $11,817 
Deferred revenue39,126 50,045 

  

March 31,

  

December 31,

 

(In thousands)

 

2023

  

2022

 

Receivables

        

Accounts receivable, net

 $32,706  $39,004 

Other current assets, net (1)

  1,947    

Other long-term assets, net (2)

  75   75 
         

Contract liabilities

        

Current portion of deferred revenue

 $7,450  $6,256 

Deferred revenue

  38,833   40,181 
(1)

Other current assets, net includes short-term notes receivables from contracts with customers.

(2)

Other long-term assets, net includes long-term lease amendment fee receivables from contracts with customers.

(1)Other current assets, net includes short-term notes receivables from contracts with customers.
(2)Other long-term assets, net includes long-term lease amendment fee receivables from contracts with customers.

The following table shows the activity related to the Partnership's Mineral Rights segment deferred revenue:

For the Three Months Ended
March 31,
(In thousands)20222021
Balance at beginning of period (current and non-current)$61,862 $61,554 
Increase due to minimums and lease amendment fees5,059 4,358 
Recognition of previously deferred revenue(12,375)(4,504)
Balance at end of period (current and non-current)$54,546 $61,408 

  

For the Three Months Ended March 31,

 

(In thousands)

 

2023

  

2022

 

Balance at beginning of period (current and non-current)

 $46,437  $61,862 

Increase due to minimums and lease amendment fees

  7,770   5,059 

Recognition of previously deferred revenue

  (7,924)  (12,375)

Balance at end of period (current and non-current)

 $46,283  $54,546 

The Partnership's non-cancelable annual minimum payments due under the lease terms of its coal and aggregates royalty leases are as follows as of March 31, 20222023 (in thousands):

Lease Term (1)

Weighted Average Remaining Years

Annual Minimum Payments

0 - 5 years

1.9$21,939

5 - 10 years

3.3 7,547

10+ years

12.3 27,121

Total

7.1$56,607
(1)

Lease term does not include renewal periods.

6

Lease Term (1)
Weighted Average Remaining YearsAnnual Minimum Payments
0 - 5 years2.4$19,021 
5 - 10 years3.96,772 
10+ years13.427,438 
Total8.3$53,231 
NATURAL RESOURCE PARTNERS L.P.
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—CONTINUED
(Unaudited)

3.      Class A Convertible Preferred Units and Warrants

On March 2, 2017, NRP issued $250 million of Class A Convertible Preferred Units representing limited partner interests in NRP (the "preferred units") to certain entities controlled by funds affiliated with The Blackstone Group Inc. (collectively referred to as "Blackstone") and certain affiliates of GoldenTree Asset Management LP (collectively referred to as "GoldenTree") (together the "preferred purchasers") pursuant to a Preferred Unit and Warrant Purchase Agreement. NRP issued 250,000 preferred units to the preferred purchasers at a price of $1,000 per preferred unit (the "per unit purchase price"), less a 2.5% structuring and origination fee. The preferred units entitle the preferred purchasers to receive cumulative distributions at a rate of 12% of the purchase price per year, up to one half of which NRP may pay in additional preferred units (such additional preferred units, the "PIK units"). The preferred units have a perpetual term, unless converted or redeemed as described below.

NRP also issued two tranches of warrants (the "warrants") to purchase common units to the preferred purchasers (warrants to purchase 1.75 million common units with a strike price of $22.81 and warrants to purchase 2.25 million common units with a strike price of $34.00). The warrants may be exercised by the holders thereof at any time before the eighth anniversary of the closing date. Upon exercise of the warrants, NRP may, at its option, elect to settle the warrants in common units or cash, each on a net basis.

After March 2, 2022 and prior to March 2, 2025, the holders of the preferred units may elect to convert up to 33% of the outstanding preferred units in any 12-month period into common units if the volume weighted average trading price of our common units (the "VWAP") for the 30 trading days immediately prior to date notice is provided is greater than $51.00. In such case, the number of common units to be issued upon conversion would be equal to the per unit purchase price plus the value of any accrued and unpaid distributions divided by an amount equal to a 7.5% discount to the VWAP for the 30 trading days immediately prior to the notice of conversion. Rather than have the preferred units convert to common units in accordance with the provisions of this paragraph, NRP would have the option to elect to redeem the preferred units proposed to be converted for cash at a price equal to the per unit purchase price plus the value of any accrued and unpaid distributions.

On or after March 2, 2025, the holders of the preferred units may elect to convert the preferred units to common units at a conversion rate equal to the Liquidation Value divided by an amount equal to a 10% discount to the VWAP for the 30 trading days immediately prior to the notice of conversion. The “liquidation value” will be an amount equal to the greater of: (1) (a) the per unit purchase price multiplied by (i) prior to March 2, 2020, 1.50, (ii) on or after March 2, 2020 and prior to March 2, 2021, 1.70 and (iii) on or after March 2, 2021, 1.85, less (b)(i) all preferred unit distributions previously made by NRP and (ii) all cash payments previously made in respect of redemption of any PIK units; and (2) the per unit purchase price plus the value of all accrued and unpaid distributions.

To the extent the holders of the preferred units have not elected to convert their preferred units before March 2, 2029, NRP has the right to force conversion of the preferred units at a price equal to the liquidation value divided by an amount equal to a 10% discount to the VWAP for the 30 trading days immediately prior to the notice of conversion.

In addition, NRP has the ability to redeem at any time (subject to compliance with its debt agreements) all or any portion of the preferred units and any outstanding PIK units for cash. The redemption price for each outstanding PIK unit is $1,000 plus the value of any accrued and unpaid distributions per PIK unit. The redemption price for each preferred unit is the liquidation value divided by the number of outstanding preferred units. The preferred units are redeemable at the option of the preferred purchasers only upon a change in control.

The terms of the preferred units contain certain restrictions on NRP's ability to pay distributions on its common units. To the extent that either (i) NRP's consolidated Leverage Ratio, as defined in the Partnership's Fifth Amended and Restated Partnership Agreement dated March 2, 2017 (the "restated partnership agreement"), is greater than (1)3.25x, or (ii) the ratio of NRP's Distributable Cash Flow (as defined in the Restated Partnership Agreement) to cash distributions made or proposed to be made is less than 1.2x (in each case, with respect to the most recently completed four-quarter period), NRP may not increase the quarterly distribution above $0.45 per quarter without the approval of the holders of a majority of the outstanding preferred units. In addition, if at any time after January 1, 2022, any PIK units are outstanding, NRP may not make distributions on its common units until it has redeemed all PIK units for cash.

The holders of the preferred units have the right to vote with holders of NRP’s common units on an as-converted basis and have other customary approval rights with respect to changes of the terms of the preferred units. In addition, Blackstone has certain approval rights over certain matters as identified in the restated partnership agreement. GoldenTree also has more limited approval rights that will expand once Blackstone's ownership goes below the minimum preferred unit threshold (as defined below). These approval rights are not transferrable without NRP's consent. In addition, the approval rights held by Blackstone and GoldenTree will terminate at such time that Blackstone (together with their affiliates) or GoldenTree (together with their affiliates), as applicable, no longer own at least 20% of the total number of preferred units issued on the closing date, together with all PIK units that have been issued but not redeemed (the "minimum preferred unit threshold").

At the closing, pursuant to the Board Representation and Observation Rights Agreement, the Preferred Purchasers received certain board appointment and observation rights, and Blackstone appointed one director and one observer to the Board of Directors.

NRP also entered into a registration rights agreement (the "preferred unit and warrant registration rights agreement") with the preferred purchasers, pursuant to which NRP is required to file (i) a shelf registration statement to register the common units issuable upon exercise of the warrants and to cause such registration statement to become effective not later than 90 days following the closing date and (ii) a shelf registration statement to register the common units issuable upon conversion of the preferred units and to cause such registration statement to become effective not later than the earlier of the fifth anniversary of the closing date or 90 days following the first issuance of any common units upon conversion of preferred units (the "registration deadlines"). In addition, the preferred unit and warrant registration rights agreement gives the preferred purchasers piggyback registration and demand underwritten offering rights under certain circumstances. The shelf registration statement to register the common units issuable upon exercise of the warrants became effective on April 20, 2017. If the shelf registration statement to register the common units issuable upon conversion of the preferred units is not effective by the applicable registration deadline, NRP will be required to pay the preferred purchasers liquidated damages in the amounts and upon the term set forth in the preferred unit and warrant registration rights agreement.

7

NATURAL RESOURCE PARTNERS L.P.
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—CONTINUED
(Unaudited)

Accounting for the Preferred Units and Warrants

Classification

The preferred units are accounted for as temporary equity on NRP's Consolidated Balance Sheets due to certain contingent redemption rights that may be exercised at the election of preferred purchasers. The warrants are accounted for as equity on NRP's Consolidated Balance Sheets.

Initial Measurement

The net transaction price was allocated to the preferred units and warrants based on their relative fair values at inception date. NRP allocated the transaction issuance costs to the preferred units and warrants primarily on a pro-rata basis based on their relative inception date allocated values.

Subsequent Measurement

Preferred Units

Subsequent adjustment of the preferred units will not occur until NRP has determined that the conversion or redemption of all or a portion of the preferred units is probable of occurring. Once conversion or redemption becomes probable of occurring, the carrying amount of the preferred units will be accreted to their redemption value over the period from the date the feature is probable of occurring to the date the preferred units can first be converted or redeemed. 

In February 2023, the Partnership received a notice from holders of the Class A Preferred Units exercising their right to either convert or redeem, at the election of NRP, an aggregate of 47,499 Class A Preferred Units. The Partnership chose to redeem the preferred units for $47.5 million in cash rather than issuing common units. Of the originally issued 250,000 Class A Preferred Units, 202,501 Class A Preferred Units remain outstanding as of March 31, 2023.

Activity related to the preferred units is as follows:

  

Units

  

Financial

 

(In thousands, except unit data)

 

Outstanding

  

Position

 

Balance at December 31, 2021

  269,321  $183,908 

Redemption of preferred units paid-in-kind

  (19,321)  (19,321)

Balance at December 31, 2022

  250,000  $164,587 

Redemption of preferred units

  (47,499)  (31,271)

Balance at March 31, 2023

  202,501  $133,316 

Warrants

As of March 31, 2023 and December 31, 2022 there were 3.0 million warrants outstanding, which included warrants to purchase 0.75 million common units at a strike price of $22.81 and warrants to purchase 2.25 million common units with a strike price of $34.00. These warrants had a $48.0 million carrying value included in warrant holders' interest within partners' capital on the Partnership's Consolidated Balance Sheets at March 31, 2023 and December 31, 2022. Subsequent adjustment of the warrants will not occur until the warrants are exercised, at which time, NRP may, at its option, elect to settle the warrants in common units or cash, each on a net basis. The net basis will be equal to the difference between the Partnership's common unit price and the strike price of the warrant. Once warrant exercise occurs, the difference between the carrying amount of the warrants and the net settlement amount will be allocated on a pro-rata basis to the common unitholders and general partner.

Embedded Features

Certain embedded features within the preferred unit and warrant purchase agreement are accounted for at fair value and are remeasured each quarter. See Note 10.Lease term does not include renewal periods.Fair Value Measurements for further information regarding valuation of these embedded derivatives.

8


NATURAL RESOURCE PARTNERS L.P.
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—CONTINUED
3.    
(Unaudited)

4.Common and Preferred Unit Distributions

The Partnership makes cash distributions to common and preferred unitholders on a quarterly basis, subject to approval by the Board of Directors of GP Natural Resource Partners LLC (the "Board of Directors"). NRP recognizes both common unit and preferred unit distributions on the date the distribution is declared.

Distributions made on the common units and the general partner's general partner ("GP") interest are made on a pro-rata basis in accordance with their relative percentage interests in the Partnership. The general partner is entitled to receive 2% of such distributions.


Income available to common unitholders and the general partner is reduced by preferred unit distributions that accumulated during the period. NRP reduced net income available to common unitholders and the general partner by $7.5$6.7 million and $7.7$7.5 million during the three months ended March 31, 2022 2023 and 2021,2022, respectively, as a result of accumulated preferred unit distributions earned during the period.

6

Table Of the $6.7 million in accumulated preferred unit distributions earned during March 31, 2023, $0.6 million was paid in February 2023 in connection with the preferred units that were redeemed. Income available to common unitholders and the general partner is also reduced by the difference between the fair value of Contents
NATURAL RESOURCE PARTNERS L.P.
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—CONTINUED
(Unaudited)


the consideration paid upon redemption and the carrying value of the preferred units. As such, NRP reduced net income available to common unitholders and the general partner by $16.2 million during the three months ended March 31, 2023. 

The following table shows the cash distributions declared and paid to common and preferred unitholders during the three months ended March 31, 2022 2023 and 2021,2022, respectively:

Cash DistributionsPaid-in-kind Distributions
Common UnitsPreferred Units
Month PaidPeriod Covered by DistributionDistribution per Unit
Total Distribution (1)
(In thousands)
Distribution per UnitTotal Distribution
(In thousands)
Total Distribution
(In units)
2022
February 2022October 1 - December 31, 2021$0.45 $5,672 $30.00 $7,500 $— 
2021
February 2021October 1 - December 31, 2020$0.45 $5,630 $15.00 $3,806 3,806 

                   
    

Common Units

  

Preferred Units

 
        

Total Distribution (1)

      

Total Distribution

 

Month Paid

 

Period Covered by Distribution

 

Distribution per Unit

  

(In thousands)

  

Distribution per Unit

  

(In thousands)

 

2023

                  

February 2023

 

October 1 - December 31, 2022

 $0.75  $9,571  $30.00  $7,500 

February 2023 (2)

 

January 1 - February 8, 2023

        12.33   586 

March 2023 (3)

 

Special Distribution

  2.43   31,329       
                   

2022

                  

February 2022

 

October 1 - December 31, 2021

 $0.45  $5,672  $30.00  $7,500 
(1)

Totals include the amount paid to NRP's general partner in accordance with the general partner's 2% general partner interest.

(2)Relates to accrued distribution paid upon the redemption of 47,499 preferred units in February 2023.
(3)Special distribution was made to help cover unitholder tax liabilities associated with owning NRP's common units during 2022.

9

(1)Totals include the amount paid to NRP's general partner in accordance with the general partner's 2% general partner interest.
NATURAL RESOURCE PARTNERS L.P.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—CONTINUED
(Unaudited)
4.    

5.Net Income Per Common Unit

Basic net income per common unit is computed by dividing net income, after considering income attributable to preferred unitholders, the difference between the fair value of the consideration paid upon redemption and the carrying value of the preferred units and the general partner’s general partner interest, by the weighted average number of common units outstanding. Diluted net income per common unit includes the effect of NRP's preferred units, warrants, and unvested unit-based awards if the inclusion of these items is dilutive.

The dilutive effect of the preferred units is calculated using the if-converted method. Under the if-converted method, the preferred units are assumed to be converted at the beginning of the period, and the resulting common units are included in the denominator of the diluted net income per unit calculation for the period being presented. Distributions declared in the period and undeclared distributions on the preferred units that accumulated during the period are added back to the numerator for purposes of the if-converted calculation. The calculation of diluted net income per common unit for the three months ended March 31, 20222023 includes the assumed conversion of the remaining preferred units.units while it does not include the assumed conversion of the preferred units that were redeemed during the first quarter of 2023 as the inclusion of these units would be anti-dilutive. The calculation of diluted net income per common unit for the three months ended March 31, 2021 does not include2022 includes the assumed conversion of the preferred units because the impact would have been anti-dilutive.

units.

The dilutive effect of the warrants is calculated using the treasury stock method, which assumes that the proceeds from the exercise of these instruments are used to purchase common units at the average market price for the period. The calculation of diluted net income per common unit for the three months ended March 31, 2023 and 2022 includes the net settlement of warrants to purchase 0.75 million common common units at a strike price of $22.81 and the net settlement of warrants to purchase 2.25 million common units with a strike price of $34.00 whereas the calculation of diluted net income per common unit for the three months ended March 31, 2021 does not include the net settlement of warrants to purchase 1.75 million common units at a strike price of $22.81 or the net settlement of warrants to purchase 2.25 million common units with a strike price of $34.00 because the impact would have been anti-dilutive.

7

Table of Contents
NATURAL RESOURCE PARTNERS L.P.
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—CONTINUED
(Unaudited)

$34.00.

The following tables reconciletable reconciles the numerator and denominator of the basic and diluted net income per common unit computations and calculates basic and diluted net income per common unit:

 For the Three Months Ended March 31,
(In thousands, except per unit data)20222021
Allocation of net income
Net income$63,899 $8,381 
Less: income attributable to preferred unitholders(7,500)(7,727)
Net income attributable to common unitholders and the general partner$56,399 $654 
Less: net income attributable to the general partner(1,128)(13)
Net income attributable to common unitholders$55,271 $641 
Basic net income per common unit
Weighted average common units—basic12,415 12,292 
Basic net income per common unit$4.45 $0.05 
Diluted net income per common unit
Weighted average common units—basic12,415 12,292 
Plus: dilutive effect of preferred units6,974 — 
Plus: dilutive effect of warrants531 — 
Plus: dilutive effect of unvested unit-based awards240 116 
Weighted average common units—diluted20,160 12,408 
Net income$63,899 $8,381 
Less: income attributable to preferred unitholders— (7,727)
Diluted net income attributable to common unitholders and the general partner$63,899 $654 
Less: diluted net income attributable to the general partner(1,278)(13)
Diluted net income attributable to common unitholders$62,621 $641 
Diluted net income per common unit$3.11 $0.05 


  

For the Three Months Ended March 31,

 

(In thousands, except per unit data)

 

2023

  

2022

 

Basic net income per common unit

        

Net income attributable to common unitholders

 $55,258  $55,271 

Weighted average common units—basic

  12,570   12,415 

Basic net income per common unit

 $4.40  $4.45 
         

Diluted net income per common unit

        

Weighted average common units—basic

  12,570   12,415 

Plus: dilutive effect of preferred units

  3,778   6,974 

Plus: dilutive effect of warrants

  1,255   531 

Plus: dilutive effect of unvested unit-based awards

  209   240 

Weighted average common units—diluted

  17,812   20,160 
         

Net income

 $79,275  $63,899 

Less: income attributable to preferred unitholders

  (586)   

Less: redemption of preferred units

  (16,228)   

Diluted net income attributable to common unitholders and the general partner

 $62,461  $63,899 

Less: diluted net income attributable to the general partner

  (1,249)  (1,278)

Diluted net income attributable to common unitholders

 $61,212  $62,621 
         

Diluted net income per common unit

 $3.44  $3.11 

810

NATURAL RESOURCE PARTNERS L.P.
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—CONTINUED
(Unaudited)

5.    

6.Segment Information

The Partnership's segments are strategic business units that offer distinct products and services to different customers in different geographies within the U.S. and that are managed accordingly. NRP has the following 2two operating segments:

Mineral Rightsconsistsconsists of mineral interests and other subsurface rights across the United States. NRP's ownership provides critical inputs for the manufacturing of steel, electricity and basic building materials, as well as opportunities for carbon sequestration and renewable energy. The Partnership is working to strategically redefine its business as a key player in the transitional energy economy in the years to come.

Soda Ash—consists of the Partnership's 49% non-controlling equity interest in Sisecam Wyoming, a trona ore mining operation and soda ash refinery in the Green River Basin of Wyoming. Sisecam Wyoming mines trona and processes it into soda ash that is sold both domestically and internationally to the glass and chemicals industries.

Direct segment costs and certain other costs incurred at the corporate level that are identifiable and that benefit the Partnership's segments are allocated to the operating segments accordingly. These allocated costs generally include salaries and benefits, insurance, property taxes, legal, royalty, information technology and shared facilities services and are included in operating and maintenance expenses on the Partnership's Consolidated Statements of Comprehensive Income.

Corporate and Financing includes functional corporate departments that do not earn revenues. Costs incurred by these departments include interest and financing, corporate headquarters and overhead, centralized treasury, legal and accounting and other corporate-level activity not specifically allocated to a segment and are included in general and administrative expenses on the Partnership's Consolidated Statements of Comprehensive Income.

The following table summarizes certain financial information for each of the Partnership's business segments:

Operating Segments
(In thousands)Mineral RightsSoda AshCorporate and FinancingTotal
For the Three Months Ended March 31, 2022
Revenues$74,879 $14,837 $— $89,716 
Operating and maintenance expenses8,025 51 — 8,076 
Depreciation, depletion and amortization3,868 — — 3,868 
General and administrative expenses— — 4,467 4,467 
Asset impairments19 — — 19 
Interest expense, net— — 9,387 9,387 
Net income (loss)62,967 14,786 (13,854)63,899 
For the Three Months Ended March 31, 2021
Revenues$35,119 $1,973 $— $37,092 
Gain on asset sales and disposals59 — — 59 
Operating and maintenance expenses5,532 20 — 5,552 
Depreciation, depletion and amortization5,092 — — 5,092 
General and administrative expenses— — 4,110 4,110 
Asset impairments4,043 — — 4,043 
Interest expense, net23 — 9,950 9,973 
Net income (loss)20,488 1,953 (14,060)8,381 


  

Operating Segments

         

(In thousands)

 

Mineral Rights

  

Soda Ash

  

Corporate and Financing

  

Total

 

For the Three Months Ended March 31, 2023

                

Revenues

 $79,869  $19,254  $  $99,123 

Gain on asset sales and disposals

  96         96 

Operating and maintenance expenses

  7,005   158      7,163 

Depreciation, depletion and amortization

  4,079      4   4,083 

General and administrative expenses

        5,845   5,845 

Asset impairments

            

Interest expense, net

        2,853   2,853 

Net income (loss)

  68,881   19,096   (8,702)  79,275 
                 

For the Three Months Ended March 31, 2022

                

Revenues

 $74,879  $14,837  $  $89,716 

Operating and maintenance expenses

  8,025   51      8,076 

Depreciation, depletion and amortization

  3,868         3,868 

General and administrative expenses

        4,467   4,467 

Asset impairments

  19         19 

Interest expense, net

        9,387   9,387 

Net income (loss)

  62,967   14,786   (13,854)  63,899 

911

NATURAL RESOURCE PARTNERS L.P.
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—CONTINUED
(Unaudited)

6.    

7.Equity Investment

The Partnership accounts for its 49% investment in Sisecam Wyoming using the equity method of accounting. Activity related to this investment is as follows:

For the Three Months Ended March 31,
(In thousands)20222021
Balance at beginning of period$276,004 $262,514 
Income allocation to NRP’s equity interests16,065 3,216 
Amortization of basis difference(1,228)(1,243)
Other comprehensive income2,545 732 
Distribution(13,230)(3,920)
Balance at end of period$280,156 $261,299 

  

For the Three Months Ended March 31,

 

(In thousands)

 

2023

  

2022

 

Balance at beginning of period

 $306,470  $276,004 

Income allocation to NRP’s equity interests (1)

  20,364   16,065 

Amortization of basis difference

  (1,110)  (1,228)

Other comprehensive income (loss)

  (19,583)  2,545 

Distribution

  (10,780)  (13,230)

Balance at end of period

 $295,361  $280,156 
(1)Amounts reclassified into income out of accumulated other comprehensive loss were $20.6 million and $1.7 million for the three months ended March 31, 2023 and 2022, respectively.

The following table represents summarized financial information for Sisecam Wyoming as derived from their respective unaudited financial statements for the three months ended March 31, 2022 2023 and 2021:2022:

  

For the Three Months Ended March 31,

 

(In thousands)

 

2023

  

2022

 

Net sales

 $207,128  $163,437 

Gross profit

  49,055   39,765 

Net income

  41,560   32,786 

For the Three Months Ended March 31,
(In thousands)20222021
Net sales$163,437 $127,791 
Gross profit39,765 12,700 
Net income32,786 6,563 

7.    

8.Mineral Rights, Net

The Partnership’s mineral rights consist of the following:

 March 31, 2022December 31, 2021
(In thousands)Carrying ValueAccumulated DepletionNet Book ValueCarrying ValueAccumulated DepletionNet Book Value
Coal properties$670,626 $(256,963)$413,663 $670,650 $(253,503)$417,147 
Aggregates properties8,747 (3,102)5,645 8,747 (2,975)5,772 
Oil and gas royalty properties12,354 (9,236)3,118 12,354 (9,115)3,239 
Other13,151 (1,612)11,539 13,151 (1,612)11,539 
Total mineral rights, net$704,878 $(270,913)$433,965 $704,902 $(267,205)$437,697 

  

March 31, 2023

  

December 31, 2022

 

(In thousands)

 

Carrying Value

  

Accumulated Depletion

  

Net Book Value

  

Carrying Value

  

Accumulated Depletion

  

Net Book Value

 

Coal properties

 $661,812  $(272,743) $389,069  $661,812  $(269,037) $392,775 

Aggregates properties

  8,655   (3,520)  5,135   8,655   (3,410)  5,245 

Oil and gas royalty properties

  12,354   (9,720)  2,634   12,354   (9,600)  2,754 

Other

  13,145   (1,612)  11,533   13,150   (1,612)  11,538 

Total mineral rights, net

 $695,966  $(287,595) $408,371  $695,971  $(283,659) $412,312 

Depletion expense related to the Partnership’s mineral rights is included in depreciation, depletion and amortization on its Consolidated Statements of Comprehensive Income and totaled $3.7$3.9 million and $4.7$3.7 million for the three months ended March 31, 2022 2023 and 2021,2022, respectively.


During the three ended March 31, 2022, the Partnership recorded $0.02 million of impairment expense. During the three months ended March 31, 2021, the Partnership recorded $4.0 million of expense primarily due to a lease termination that resulted in the full impairment of a coal property.

The Partnership has developed procedures to evaluate its long-lived assets for possible impairment periodically or whenever events or changes in circumstances indicate an asset's net book value may not be recoverable. Potential events or circumstances include, but are not limited to, specific events such as a reduction in economically recoverable reserves or production ceasing on a property for an extended period. This analysis is based on historic, current and future performance and considers both quantitative and qualitative information. WhileAs a result of the Partnership's impairment evaluation as of analysis, the Partnership did not have any asset impairments during the three months ended March 31, 2022 incorporated2023 and recorded an estimated impact ofimmaterial impairment expense during the global COVID-19 pandemic, there is significant uncertainty as to the severity and duration of this disruption. If the impact is worse than current estimates, an additional impairment charge may be recognized in future periods.


three months ended March 31, 2022.

1012

NATURAL RESOURCE PARTNERS L.P.
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—CONTINUED
(Unaudited)

8.    

9.Debt, Net

The Partnership's debt consists of the following:

March 31,December 31,
(In thousands)20222021
NRP LP debt:
9.125% senior notes, with semi-annual interest payments in June and December, due June 2025, issued at par ("2025 Senior Notes")$300,000 $300,000 
Opco debt:
Revolving credit facility$— $— 
Senior Notes
5.55% with semi-annual interest payments in June and December, with annual principal payments in June, due June 2023$4,730 $4,730 
4.73% with semi-annual interest payments in June and December, with annual principal payments in December, due December 202312,008 12,008 
5.82% with semi-annual interest payments in March and September, with annual principal payments in March, due March 202425,368 38,053 
8.92% with semi-annual interest payments in March and September, with annual principal payments in March, due March 20248,023 12,035 
5.03% with semi-annual interest payments in June and December, with annual principal payments in December, due December 202657,104 57,104 
5.18% with semi-annual interest payments in June and December, with annual principal payments in December, due December 202614,554 14,554 
Total Opco Senior Notes$121,787 $138,484 
Total debt at face value$421,787 $438,484 
Net unamortized debt issuance costs(4,578)(4,939)
Total debt, net$417,209 $433,545 
Less: current portion of long-term debt(39,046)(39,102)
Total long-term debt, net$378,163 $394,443 

NRP LP Debt
2025 Senior Notes
The 2025 Senior Notes were issued under an Indenture dated as of April 29, 2019 (the "2025 Indenture"), bear interest at 9.125% per year and mature on June 30, 2025. Interest is payable semi-annually on June 30 and December 30. NRP and NRP Finance have the option to redeem the 2025 Senior Notes, in whole or in part, at any time on or after October 30, 2021, at the redemption prices (expressed as percentages of principal amount) of 104.563% for the 12-month period beginning October 30, 2021, 102.281% for the 12-month period beginning October 30, 2022, and thereafter at 100.000%, together, in each case, with any accrued and unpaid interest to the date of redemption. Furthermore, before October 30, 2021, NRP may on any one or more occasions redeem up to 35% of the aggregate principal amount of the 2025 Senior Notes with the net proceeds of certain public or private equity offerings at a redemption price of 109.125% of the principal amount of 2025 Senior Notes, plus any accrued and unpaid interest, if any, to the date of redemption, if at least 65% of the aggregate principal amount of the 2025 Senior Notes issued under the 2025 Indenture remains outstanding immediately after such redemption and the redemption occurs within 180 days of the closing date of such equity offering. In the event of a change of control, as defined in the 2025 Indenture, the holders of the 2025 Senior Notes may require us to purchase their 2025 Senior Notes at a purchase price equal to 101% of the principal amount of the 2025 Senior Notes, plus accrued and unpaid interest, if any. The 2025 Senior Notes were issued at par.
11

Table of Contents
NATURAL RESOURCE PARTNERS L.P.
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—CONTINUED
(Unaudited)

The 2025 Senior Notes are the senior unsecured obligations of NRP and NRP Finance. The 2025 Senior Notes rank equal in right of payment to all existing and future senior unsecured debt of NRP and NRP Finance and senior in right of payment to any of NRP's subordinated debt. The 2025 Senior Notes are effectively subordinated in right of payment to all future secured debt of NRP and NRP Finance to the extent of the value of the collateral securing such indebtedness and are structurally subordinated in right of payment to all existing and future debt and other liabilities of our subsidiaries, including the Opco Credit Facility and each series of Opco’s existing senior notes. "Opco" refers to NRP (Operating) LLC, a wholly owned subsidiary of NRP, and its subsidiaries. None of NRP's subsidiaries guarantee the 2025 Senior Notes. As of March 31, 2022 and December 31, 2021, NRP and NRP Finance were in compliance with the terms of the Indenture relating to their 2025 Senior Notes.

  

March 31,

  

December 31,

 

(In thousands)

 

2023

  

2022

 

Opco credit facility

 $91,200  $70,000 

Opco Senior Notes

        

5.55% with semi-annual interest payments in June and December, with annual principal payments in June, due June 2023

 $2,366  $2,366 

4.73% with semi-annual interest payments in June and December, with annual principal payments in December, due December 2023

  6,004   6,004 

5.82% with semi-annual interest payments in March and September, with annual principal payments in March, due March 2024

  12,684   25,368 

8.92% with semi-annual interest payments in March and September, with annual principal payments in March, due March 2024

  4,011   8,023 

5.03% with semi-annual interest payments in June and December, with annual principal payments in December, due December 2026

  45,683   45,683 

5.18% with semi-annual interest payments in June and December, with annual principal payments in December, due December 2026

  11,643   11,643 

Total Opco Senior Notes

 $82,391  $99,087 

Total debt at face value

 $173,591  $169,087 

Net unamortized debt issuance costs

  (715)  (806)

Total debt, net

 $172,876  $168,281 

Less: current portion of long-term debt

  (39,055)  (39,076)

Total long-term debt, net

 $133,821  $129,205 

Opco Debt

All of Opco’s debt is guaranteed by its wholly owned subsidiaries and is secured by certain of the assets of Opco and its wholly owned subsidiaries, other than BRP LLC and NRP Trona LLC. As of March 31, 20222023 and December 31, 2021,2022, Opco was in compliance with the terms of the financial covenants contained in its debt agreements.

Opco Credit Facility

In April 2019, August 2022, the Partnership entered into the FourthFifth Amendment (the “Fourth Amendment”)"Fifth Amendment) to the Opco Credit Facility (the "Opco Credit Facility"). The FourthFifth Amendment extended the term of the Opco Credit Facility until April 2023. August 2027. Lender commitments under the Opco Credit Facility remain at $100.0increased to $130.0 million. The Opco Credit Facility contains financial covenants requiring Opco to maintain:

A leverage ratio of consolidated indebtedness to EBITDDA (in each case as defined in the Opco Credit Facility) not to exceed 3.0x; provided, and

an interest coverage ratio of consolidated EBITDDA to the sum of consolidated interest expense and consolidated lease expense (in each case as defined in the Opco Credit Facility) of not less than 3.5 to 1.0.

As of consolidated indebtedness to EBITDDA (as definedDecember 31, 2022, the Partnership had $70.0 million in borrowings outstanding under the Opco Credit Facility) not to exceed 4.0x; provided, however, that if Facility. During the three months ended March 31, 2023, the Partnership increases its quarterly distribution to its common unitholders above $0.45 per common unit, the maximum leverage ratioborrowed $94.2 million and repaid $73.0 million, resulting in $91.2 million in borrowings outstanding under the Opco Credit Facility will permanently decrease from 4.0x to 3.0x; and

a fixed charge coverage ratioas of consolidated EBITDDA to consolidated fixed charges (consisting of consolidatedMarch 31, 2023. The weighted average interest expense and consolidated lease expense) of not less than 3.5 to 1.0.
rate for the borrowings outstanding under the Opco Credit Facility for the three months ended March 31, 2023 was 8.14%. During the three months ended March 31, 2022, and 2021, the Partnership did not have any borrowings outstanding under the Opco Credit FacilityFacility. The Partnership had $38.8 million and had $100.0$60.0 million inof available borrowing capacity at both as of March 31, 2022 2023 and December 31, 2021.
2022, respectively.

The Opco Credit Facility is collateralized and secured by liens on certain of Opco’s assets with carrying values of $341.7$323.0 million and $345.0$326.4 million classified as mineral rights, net and other long-term assets, net on the Partnership’s ConsolidatedConsolidated Balance Sheets as of March 31, 20222023 and December 31, 2021,2022, respectively.

Opco Senior Notes

Opco has issued several series of private placement senior notes (the "Opco Senior Notes") with various interest rates and principal due dates. As of March 31, 20222023 and December 31, 2021,2022, the Opco Senior Notes had cumulative principal balances of $121.8$82.4 million and $138.5$99.1 million, respectively. Opco made mandatory principal payments of $16.7 million during the three months ended March 31, 2022 2023 and 2021.

2022.

The 8.92% Opco Senior Notes also provides that in the event that Opco’s leverage ratio of consolidated indebtedness to consolidated EBITDDA (as defined in the Note Purchase Agreements) exceeds 3.75 to 1.00 at the end of any fiscal quarter, then in addition to all other interest accruing on these notes, additional interest in the amount of 2.00% per annum shall accrue on the notes for the two succeeding quarters and for as long thereafter as the leverage ratio remains above 3.75 to 1.00. Opco has not exceeded the 3.75 to 1.00 ratio at the end of any fiscal quarter through March 31, 2022.

2023.

1213

NATURAL RESOURCE PARTNERS L.P.
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—CONTINUED
(Unaudited)

9.    

10.Fair Value Measurements

Fair Value of Financial Assets and Liabilities

The Partnership’s financial assets and liabilities consist of cash and cash equivalents, a contract receivable and debt. The carrying amounts reported on the Consolidated Balance Sheets for cash and cash equivalents approximate fair value due to their short-term nature. The Partnership uses available market data and valuation methodologies to estimate the fair value of its debt and contract receivable.

The following table shows the carrying value and estimated fair value of the Partnership's debt and contract receivable:

 March 31, 2022December 31, 2021
(In thousands)Fair Value Hierarchy LevelCarrying
Value
Estimated
Fair Value
Carrying
Value
Estimated
Fair Value
Debt:
NRP 2025 Senior Notes1$296,504 $304,500 $296,236 $300,000 
Opco Senior Notes (1)
3120,705 123,614 137,309 138,484 
Opco Credit Facility3— — — — 
Assets:
Contract receivable, net (current and
long-term) (2)
3$33,068 $25,732 $33,612 $26,010 

      

March 31, 2023

  

December 31, 2022

 
  

Fair Value

  

Carrying

  

Estimated

  

Carrying

  

Estimated

 

(In thousands)

 

Hierarchy Level

  

Value

  

Fair Value

  

Value

  

Fair Value

 

Debt:

                    

Opco Senior Notes (1)

  3  $81,676  $77,587  $98,281  $96,060 

Opco Credit Facility (2)

  3   91,200   91,200   70,000   70,000 
                     

Assets:

                    

Contract receivable, net (current and long-term) (3)

  3  $30,783  $25,615  $31,371  $24,833 
(1)The fair value of the Opco Senior Notes at March 31, 2023 and December 31, 2022 were estimated by management utilizing the present value replacement method incorporating the interest rate of the Opco Credit facility at March 31, 2023 and December 31, 2022, respectively.
(2)The fair value of the Opco Credit Facility approximates the outstanding borrowing amount because the interest rates are variable and reflective of market rates and the terms of the credit facility allow the Partnership to repay the debt at any time without penalty.

(3)

The fair value of the Partnership's contract receivable is determined based on the present value of future cash flow projections related to the underlying asset at a discount rate of 15% at March 31, 2023 and December 31, 2022.

(1)The fair value of the Opco Senior Notes are estimated by management using quotations obtained for the NRP 2025 Senior Notes on the closing trading prices near period end, which were at 102% and 100% of par value at March 31, 2022 and December 31, 2021, respectively.
(2)The fair value of the Partnership's contract receivable is determined based on the present value of future cash flow projections related to the underlying asset at a discount rate of 15% at March 31, 2022 and December 31, 2021.

NRP has embedded derivatives in the preferred units related to certain conversion options, redemption features and the change of control provision that are accounted for separately from the preferred units as assets and liabilities at fair value on the Partnership's Consolidated Balance Sheets. Level 3 valuation of the embedded derivatives are based on numerous factors including the likelihood of the event occurring. The embedded derivatives are revalued quarterly and changes in their fair value would be recorded in other expenses, net on the Partnership's Consolidated Statements of Comprehensive Income. The embedded derivatives had zero value as of March 31, 20222023 and December 31, 2021.2022.


10.    

11.Related Party Transactions

Affiliates of our General Partner

The Partnership’s general partner does not receive any management fee or other compensation for its management of NRP. However, in accordance with the partnership agreement, the general partner and its affiliates are reimbursed for services provided to the Partnership and for expenses incurred on the Partnership’s behalf. Employees of Quintana Minerals Corporation ("QMC") and Western Pocahontas Properties Limited Partnership ("WPPLP"), affiliates of the Partnership, provide their services to manage the Partnership's business. QMC and WPPLP charge the Partnership the portion of their employee salary and benefits costs related to their employee services provided to NRP. These QMC and WPPLP employee management service costs are presented as operating and maintenance expenses and general and administrative expenses on the Partnership's Consolidated Statements of Comprehensive Income. NRP also reimburses overhead costs incurred by its affiliates, including Quintana Infrastructure Development ("QID"), to manage the Partnership's business. These overhead costs include certain rent, information technology, administration of employee benefits and other corporate services incurred by or on behalf of the Partnership’s general partner and its affiliates and are presented as operating and maintenance expenses and general and administrative expenses on the Partnership's Consolidated Statements of Comprehensive Income.

13

Table of Contents
NATURAL RESOURCE PARTNERS L.P.
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—CONTINUED
(Unaudited)

Direct general and administrative expenses charged to the Partnership by QMC, WPPLP and QID are included on the Partnership's Consolidated Statement of Comprehensive Income as follows:

For the Three Months Ended March 31,
(In thousands)20222021
Operating and maintenance expenses$1,659 $1,607 
General and administrative expenses1,240 1,186 

  

For the Three Months Ended March 31,

 

(In thousands)

 

2023

  

2022

 

Operating and maintenance expenses

 $1,719  $1,659 

General and administrative expenses

  1,320   1,240 

The Partnership had accounts payable to QMC of $0.4 million on its Consolidated Balance Sheets of $0.4 million to QMC at both March 31, 20222023 and December 31, 20212022, and $0.8 million and $0.9$1.0 million of accounts payable to WPPLP at March 31, 20222023 and December 31, 2021,2022, respectively.

During the three months ended March 31, 2022 2023 and 2021,2022, the Partnership recognized $1.6$2.0 million and $0.2$1.6 million, respectively, in operating and maintenance expenses on its Consolidated Statements of Comprehensive Income related to an overriding royalty agreement with WPPLP.

Corbin J. Robertson, Jr. owns 85% of the general partner of Great Northern Properties Limited Partnership ("GNP"), a privately held company primarily engaged in owning and managing mineral properties and surface leases. As of At both March 31, 20222023 and December 31, 20212022 the Partnership had $0.0$0.03 million and $0.1 million, respectively, of accounts receivable from GNP included in accounts receivable, net on its Consolidated Balance Sheets related to amounts collected for surface leases that belong to NRP.

14

NATURAL RESOURCE PARTNERS L.P.
11.    
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—CONTINUED
(Unaudited)

12.Major Customers

Revenues from customers that exceeded 10 percent of total revenues for any of the periods presented below are as follows:

 For the Three Months Ended March 31,
 20222021
(In thousands)RevenuesPercentRevenuesPercent
Foresight Energy Resources LLC ("Foresight") (1) (2)
$11,250 13 %$8,572 23 %
Alpha Metallurgical Resources, Inc. (1)
27,743 31 %8,043 22 %

  

For the Three Months Ended March 31,

 
  

2023

  

2022

 

(In thousands)

 

Revenues

  

Percent

  

Revenues

  

Percent

 

Alpha Metallurgical Resources, Inc. (1)

 $24,218   24% $27,743   31%

Foresight Energy Resources LLC ("Foresight") (1)

 $12,529   13% $11,250   13%

(1)

Revenues from Alpha Metallurgical Resources, Inc. and Foresight are included within the Partnership's Mineral Rights segment.

(1)Revenues from Foresight and Alpha Metallurgical Resources, Inc. are included within the Partnership's Mineral Rights segment.
(2)Revenues from Foresight in 2021 were fixed as a result of the lease amendment the Partnership entered into with Foresight pursuant to which Foresight agreed to pay NRP fixed cash payments to satisfy all obligations arising out of the existing various coal mining leases and transportation infrastructure fee agreements between the Partnership and Foresight. Revenues from Foresight in 2022 represent traditional royalty and minimum payments.
12.    

13.Commitments and Contingencies

NRP is involved, from time to time, in various legal proceedings arising in the ordinary course of business. While the ultimate results of these proceedings cannot be predicted with certainty, Partnership management believes these ordinary course matters will not have a material effect on the Partnership’s financial position, liquidity or operations.

14

NATURAL RESOURCE PARTNERS L.P.
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—CONTINUED
(Unaudited)

13.    14.Unit-Based Compensation

During the three months ended March 31, 2023, the Partnership granted service, performance and market-based awards under its 2017 Long-Term Incentive Plan and during the three months ended March 31, 2022, the Partnership granted service-based awards. The Partnership's unit-basedservice and performance-based awards granted in 2022 and 2021 wereare valued using the closing price of NRP's common units as of the grant date.date while the Partnership's market-based awards are valued using a Monte Carlo simulation. The grant date fair value of these awards granted during the three months ended March 31, 2022 2023 and 2021 were $7.92022 was $15.9 million and $3.8$7.9 million, respectively. Total unit-based compensation expense associated with these awards was $1.4$2.5 million and $1.1$1.4 million for the three months ended March 31, 2022 2023 and 2021,2022, respectively, and is included in general and administrative expenses and operating and maintenance expenses on the Partnership's Consolidated Statements of Comprehensive Income. The unamortized cost associated with unvested outstanding awards as of March 31, 20222023 is $9.5$20.2 million, which is to be recognized over a weighted average period of 2.5 years. The unamortized cost associated with unvested outstanding awards as of December 31, 20212022 was $3.3$6.3 million.

A summary of the unit activity in the outstanding grants during 20222023 is as follows:

(In thousands)

 

Common Units

  

Weighted Average Grant Date Fair Value per Common Unit

 

Outstanding at January 1, 2023

  386  $28.96 

Granted

  278  $56.94 

Fully vested and issued

  (184) $26.30 

Outstanding at March 31, 2023

  480  $46.20 

15

(In thousands)Common UnitsWeighted Average Grant Date Fair Value per Common Unit
Outstanding at January 1, 2022411 $23.00 
Granted208 $38.29 
Fully vested and issued(233)$26.74 
Outstanding at March 31, 2022386 $28.96 
NATURAL RESOURCE PARTNERS L.P.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—CONTINUED
(Unaudited)
14.    

15.Financing Transaction

The Partnership owns rail loadout and associated infrastructure at the Sugar Camp mine in the Illinois Basin operated by a subsidiary of Foresight. The infrastructure at the Sugar Camp mine is leased to a subsidiary of Foresight and is accounted for as a financing transaction (the "Sugar Camp lease"). The Sugar Camp lease expires in 2032 with renewal options for up to 80 additional years. Minimum payments are $5.0 million per year through the end of the lease term. The Partnership is also entitled to variable payments in the form of throughput fees determined based on the amount of coal transported and processed utilizing the Partnership's assets. In the event the Sugar Camp lease is renewed beyond 2032, payments become a fixed $10 thousand per year for the remainder of the renewed term.


15.    

16.Credit Losses

The Partnership is exposed to credit losses through collection of its short-term trade receivables resulting from contracts with customers and a long-term receivable resulting from a financing transaction with a customer. The Partnership records an allowance for current expected credit losses on these receivables based on the loss-rate method. NRP assessed the likelihood of collection of its receivables utilizing historical loss rates, current market conditions, that included the estimated impact of the global COVID-19 pandemic, industry and macroeconomic factors, reasonable and supportable forecasts and facts or circumstances of individual customers and properties. Examples of these facts or circumstances include, but are not limited to, contract disputes or renegotiations with the customer and evaluation of short and long-term economic viability of the contracted property. For its long-term contract receivable, management reverts to the historical loss experience immediately after the reasonable and supportable forecast period ends.


As of March 31, 20222023 and December 31, 2021,2022, NRP had the following current expected credit loss (“CECL”) allowance related to its receivables and long-term contract receivable:

March 31, 2022December 31, 2021
(In thousands)GrossCECL AllowanceNetGrossCECL AllowanceNet
Receivables$39,403 $(4,361)$35,042 $28,869 $(3,312)$25,557 
Long-term contract receivable31,887 (1,104)30,783 32,497 (1,126)31,371 
Total$71,290 $(5,465)$65,825 $61,366 $(4,438)$56,928 

15

NATURAL RESOURCE PARTNERS L.P.
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—CONTINUED
(Unaudited)

  

March 31, 2023

  

December 31, 2022

 

(In thousands)

 

Gross

  

CECL Allowance

  

Net

  

Gross

  

CECL Allowance

  

Net

 

Receivables

 $42,410  $(3,874) $38,536  $47,237  $(4,461) $42,776 

Long-term contract receivable

  29,325   (1,016)  28,309   29,984   (1,038)  28,946 

Total

 $71,735  $(4,890) $66,845  $77,221  $(5,499) $71,722 

NRP recorded $1.0 million($0.6 million) and $0.4$1.0 million in operating and maintenance expenses on its Consolidated Statements of Comprehensive Income related to the change in the CECL allowance during the three months ended March 31, 2022 2023 and 2021,2022, respectively.


NRP has procedures in place to monitor its ongoing credit exposure through timely review of counterparty balances against contract terms and due dates, account and financing receivable reconciliation, bankruptcy monitoring, lessee audits and dispute resolution. The Partnership may employ legal counsel or collection specialists to pursue recovery of defaulted receivables.


16.    

17.Subsequent Events

The following represents material events that have occurred subsequent to March 31, 20222023 through the time of the Partnership’s filing of its Quarterly Report on Form 10-Q10-Q with the SEC:

Common Unit and Preferred Unit Distributions

In May 2022, 2023, the Board of Directors declared a distribution of $0.75 per common unit with respect to the first quarter of 2022.2023. The Board of Directors also declared a $6.1 million cash distribution on NRP's outstanding preferred units with respect to the first quarter of 2022 totaling $7.5 million in cash.2023.

16

ITEM 2. MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS

The following review of operations for the three month periods ended March 31, 20222023 and 20212022 should be read in conjunction with our Consolidated Financial Statements and the Notes to Consolidated Financial Statements included in this Form 10-Q and with the Consolidated Financial Statements, Notes to Consolidated Financial Statements and Management’s Discussion and Analysis included in the Natural Resource Partners L.P. Annual Report on Form 10-K for the year ended December 31, 2021.

2022.

As used herein, unless the context otherwise requires: "we," "our," "us" and the "Partnership" refer to Natural Resource Partners L.P. and, where the context requires, our subsidiaries. References to "NRP" and "Natural Resource Partners" refer to Natural Resource Partners L.P. only, and not to NRP (Operating) LLC or any of Natural Resource Partners L.P.’s subsidiaries. References to "Opco" refer to NRP (Operating) LLC, a wholly owned subsidiary of NRP, and its subsidiaries. NRP Finance Corporation ("NRP Finance") is a wholly owned subsidiary of NRP and was a co-issuer with NRP on the 9.125% senior notes due 2025 (the "2025 Senior Notes").

INFORMATION REGARDING FORWARD-LOOKING STATEMENTS

Statements included in this 10-Q may constitute forward-looking statements. In addition, we and our representatives may from time to time make other oral or written statements which are also forward-looking statements. Such forward-looking statements include, among other things, statements regarding: the effects of the global COVID-19 pandemic; future distributions on our common and preferred units; our business strategy; our liquidity and access to capital and financing sources; our financial strategy; prices of and demand for coal, trona and soda ash, and other natural resources; estimated revenues, expenses and results of operations; projected production levelsfuture performance by our lessees; Sisecam Wyoming LLC’s ("Sisecam Wyoming's") trona mining and soda ash refinery operations; distributions from our soda ash joint venture; the impact of governmental policies, laws and regulations, as well as regulatory and legal proceedings involving us, and of scheduled or potential regulatory or legal changes; and global and U.S. economic conditions.

These forward-looking statements speak only as of the date hereof and are made based upon our current plans, expectations, estimates, assumptions and beliefs concerning future events impacting us and involve a number of risks and uncertainties. We caution that forward-looking statements are not guarantees and that actual results could differ materially from those expressed or implied in the forward-looking statements. You should not put undue reliance on any forward-looking statements. See "Item 1A. Risk Factors" included in this Form 10-Q and in our Annual Report on Form 10-K for the year ended December 31, 20212022 for important factors that could cause our actual results of operations or our actual financial condition to differ.

NON-GAAP FINANCIAL MEASURES

Adjusted EBITDA

Adjusted EBITDA is a non-GAAP financial measure that we define as net income (loss) less equity earnings from unconsolidated investment; plus total distributions from unconsolidated investment, interest expense, net, debt modification expense, loss on extinguishment of debt, depreciation, depletion and amortization and asset impairments. Adjusted EBITDA should not be considered an alternative to, or more meaningful than, net income or loss, net income or loss attributable to partners, operating income or loss, cash flows from operating activities or any other measure of financial performance presented in accordance with GAAP as measures of operating performance, liquidity or ability to service debt obligations. There are significant limitations to using Adjusted EBITDA as a measure of performance, including the inability to analyze the effect of certain recurring items that materially affect our net income, the lack of comparability of results of operations of different companies and the different methods of calculating Adjusted EBITDA reported by different companies. In addition, Adjusted EBITDA presented below is not calculated or presented on the same basis as Consolidated EBITDA as defined in our partnership agreement or Consolidated EBITDDA as defined in Opco's debt agreements. For a description of Opco's debt agreements, see Note 8.9. Debt, Net in the Notes to Consolidated Financial Statements included herein as well as in "Item 8. Financial Statements and Supplementary Data—Note 11. Debt, Net" in our Annual Report on Form 10-K for the year ended December 31, 2021.2022. Adjusted EBITDA is a supplemental performance measure used by our management and by external users of our financial statements, such as investors, commercial banks, research analysts and others to assess the financial performance of our assets without regard to financing methods, capital structure or historical cost basis.


17

Distributable Cash Flow

Distributable cash flow ("DCF") represents net cash provided by (used in) operating activities of continuing operations plus distributions from unconsolidated investment in excess of cumulative earnings, proceeds from asset sales and disposals, including sales of discontinued operations, and return of long-term contract receivables;receivable; less maintenance capital expenditures. DCF is not a measure of financial performance under GAAP and should not be considered as an alternative to cash flows from operating, investing or financing activities. DCF may not be calculated the same for us as for other companies. In addition, DCF presented below is not calculated or presented on the same basis as distributable cash flow as defined in our partnership agreement, which is used as a metric to determine whether we are able to increase quarterly distributions to our common unitholders. DCF is a supplemental liquidity measure used by our management and by external users of our financial statements, such as investors, commercial banks, research analysts and others to assesassess our ability to make cash distributions and repay debt.

Free Cash Flow

Free cash flow ("FCF") represents net cash provided by (used in) operating activities of continuing operations plus distributions from unconsolidated investment in excess of cumulative earnings and return of long-term contract receivables;receivable; less maintenance and expansion capital expenditures and cash flow used in acquisition costs classified as investing or financing activities. FCF is calculated before mandatory debt repayments. FCF is not a measure of financial performance under GAAP and should not be considered as an alternative to cash flows from operating, investing or financing activities. FCF may not be calculated the same for us as for other companies. FCF is a supplemental liquidity measure used by our management and by external users of our financial statements, such as investors, commercial banks, research analysts and others to assess our ability to make cash distributions and repay debt.

Leverage Ratio

Leverage ratio represents the outstanding principal of our debt at the end of the period divided by the last twelve months' Adjusted EBITDA as defined above. We believe that leverage ratio is a useful measure to management and investors to evaluate and monitor our indebtedness relative to our ability to generate income to service such debt and in understanding trends in our overall financial condition. Leverage ratio may not be calculated the same for us as for other companies and is not a substitute for, and should not be used in conjunction with, GAAP financial ratios. 

Introduction

The following discussion and analysis presents management's view of our business, financial condition and overall performance. Our discussion and analysis consists of the following subjects:

Executive Overview

Results of Operations

Liquidity and Capital Resources

Off-Balance Sheet Transactions

Related Party Transactions

Summary of Critical Accounting Estimates

Recent Accounting Standards

18

Executive Overview

We are a diversified natural resource company engaged principally in the business of owning, managing and leasing a diversified portfolio of mineral properties in the United States, including interests in coal and other natural resources and own a non-controlling 49% interest in Sisecam Wyoming, a trona ore mining and soda ash production business. Our common units trade on the New York Stock Exchange under the symbol "NRP." Our business is organized into two operating segments:

Mineral Rightsconsists of approximately 13 million acres of mineral interests and other subsurface rights across the United States. If combined in a single tract, our ownership would cover roughly 20,000 square miles. Our ownership provides critical inputs for the manufacturing of steel, electricity and basic building materials, as well as opportunities for carbon sequestration and renewable energy. We are working to strategically redefine our business as a key player in the transitional energy economy in the years to come.

Soda Ash—consists of our 49% non-controlling equity interest in Sisecam Wyoming, a trona ore mining and soda ash production business located in the Green River Basin of Wyoming. Sisecam Wyoming mines the trona and processes it into soda ash that is sold both domestically and internationally into the glass and chemicals industries.

Corporate and Financing includes functional corporate departments that do not earn revenues. Costs incurred by these departments include interest and financing, corporate headquarters and overhead, centralized treasury, legal and accounting and other corporate-level activity not specifically allocated to a segment.

Our financial results by segment for the three months ended March 31, 20222023 are as follows:

Operating Segments
(In thousands)Mineral RightsSoda AshCorporate and FinancingTotal
Revenues and other income$74,879 $14,837 $— $89,716 
Net income (loss)$62,967 $14,786 $(13,854)$63,899 
Adjusted EBITDA (1)
$66,854 $13,179 $(4,467)$75,566 
Cash flow provided by (used in) continuing operations
Operating activities$48,176 $13,195 $(9,040)$52,331 
Investing activities$— $— $— $— 
Financing activities$(614)$— $(51,647)$(52,261)
Distributable cash flow (1)
$48,176 $13,195 $(9,040)$52,331 
Free cash flow (1)
$48,176 $13,195 $(9,040)$52,331 

  

Operating Segments

         

(In thousands)

 

Mineral Rights

  

Soda Ash

  

Corporate and Financing

  

Total

 

Revenues and other income

 $79,965  $19,254  $  $99,219 

Net income (loss)

 $68,881  $19,096  $(8,702) $79,275 

Adjusted EBITDA (1)

 $72,960  $10,622  $(5,845) $77,737 
                 

Cash flow provided by (used in) continuing operations

                

Operating activities

 $73,858  $10,617  $(11,575) $72,900 

Investing activities

 $699  $  $(2) $697 

Financing activities

 $(583) $  $(94,450) $(95,033)

Distributable cash flow (1)

 $74,557  $10,617  $(11,577) $73,597 

Free cash flow (1)

 $74,456  $10,617  $(11,577) $73,496 

(1)

See "—Results of Operations" below for reconciliations to the most comparable GAAP financial measures.

(1)See "—Results of Operations" below for reconciliations to the most comparable GAAP financial measures.
19

Current Results/Market Commentary

Business OutlookCommentary

Financial Results and Quarterly Distributions


We generated $52.3$72.9 million of operating cash flow and $73.5 million of free cash flow during the three months ended March 31, 2022,2023, and ended the quarter with $235.6$56.5 million of liquidity consisting of $135.6$17.7 million of cash and cash equivalents and $100.0$38.8 million of borrowing capacity under our Opco Credit Facility.


Our liquidity has remained steady and As of March 31, 2023 our consolidated leverage ratio has decreased to 2.0x at March 31, 2022. Wewas 0.5 x.

In February 2023, we declared and paid a first quarter 2022 cash distribution of $0.75 per common unit of NRP an increase comparedwith respect to $0.45 paid lastthe fourth quarter andof 2022 as well as a $7.5 million cash distribution on the preferred units. The decisionunits with respect to increasethe fourth quarter of 2022. In March 2023, we declared and paid a special cash distribution of $2.43 per common unit distributions was based on our substantial free cash flow generation, solid liquidity and positive outlook for our business lines, coupledto help cover unitholder tax liabilities associated with higher expectedowning NRP's common unitholder income tax liability for 2022 resulting from our improved financial performance.units during 2022. Future distributions on our common and preferred units will be determined on a quarterly basis by the Board of Directors. The Board of Directors considers numerous factors each quarter in determining cash distributions, including profitability, cash flow, debt service obligations, market conditions and outlook, estimated unitholder income tax liability and the level of cash reserves that the Board determines is necessary for future operating and capital needs.

In February 2023, we received a notice from holders of our Class A Preferred Units exercising their right to either convert or redeem, at the election of NRP, an aggregate of 47,499 Class A Preferred Units. We chose to redeem the preferred units for $47.5 million in cash rather than issuing common units. Of the originally issued 250,000 Class A Preferred Units, 202,501 Class A Preferred Units remain outstanding.

Mineral Rights Business Segment

Metallurgical coal prices reached record levels during

Revenues and other income in the first quarter of 2022 driven by strong demand for steel and a relatively subdued supply response for coking coal which has yet2023 increased $5.1 million, or 7%, as compared to reach pre-pandemic production levelsthe prior year period primarily due to increased metallurgical coal sales volumes and revenue from carbon neutral initiatives. Cash provided by operating activities and free cash flow increased $25.7 million and $26.3 million, respectively, compared to the prior year quarter primarily due to the timing of minimum and royalty payments and prior year recoupments. 

 Metallurgical coal prices remain strong relative to historical norms, although pricing has declined from the record highs seen in 2022. Continued support for pricing is expected as operators are limited in their ability to increase production due to ongoing labor shortages, transportation and global supply chain interruptions. Despitelogistics challenges, difficulty of new mine permitting, and limited access to capital. While metallurgical prices have pulled back from the negative impact on steel production resulting from COVID-19 lockdowns in China,peaks reached last year, we expect the supply-demand balance for metallurgical coalcontinue to believe met prices will remain tightwell-supported for the foreseeable futurefuture. 

Thermal coal prices also reached record highs in 2022, but have declined significantly in recent months due to unusually warm weather in Europe and should provide furtherNorth America as well as lower natural gas prices. While we do not expect to see thermal prices rebound to last year’s levels, many of the factors that provided support for domestic and international prices.Our lessees sold 6.8 million tonsto prices over the last year still exist. Boycotts of Russian coal continue to force European buyers to source coal from our properties inother regions, including the first three months of 2022U.S. Operators will continue to be burdened by labor shortages, pressure from governments, regulators, activists, and we derived approximately 80% of our coal royalty revenues and approximately 50% of our coal royalty sales volumes from metallurgical coal during the same period.


Thermal coal demand and pricing remains strong due to the increased demand for electricity and constrained growth in thermal coal production. Labor shortages, global supply chain interruptions, and environmental and political pressures are limiting thecapital providers, which will limit ability of operators to increase thermal coal production to meet domestic and international demand. In addition, higher natural gas prices and boycottsChina appears to be relaxing its three-year ban on RussianAustralian coal caused byimports with the war in Ukraine are further amplifying the tightness in thermal coal markets. Duerecent approvals for several Chinese companies to buy Australian coal. Additional demand from a Chinese economy emerging from a zero-COVID policy should provide additional support for prices. We expect these factors to keep thermal prices elevated relative to historical levels for the near-term outlook for thermal coal prices is positive.
foreseeable future.

We continue to explore and identify alternativecarbon neutral revenue sourcesopportunities across our large portfolio of land, mineral, and timber assets. The types of opportunities includeassets, including the sequestration of carbon dioxide underground and in standing forests, and the generation of electricity using geothermal, solar, and wind energy. As announced previously, inIn the first quarter of 2023, we executed on our first subsurface carbon dioxide ("CO2") sequestration transaction by granting Denbury the right to develop a world-class subsurface CO2 sequestration project on 75,000 acres of underground pore space we own in southwest Alabama with the potential to store over 300 million metric tons of CO2. This project, if developed, will be the first subsurface CO2 sequestration project on the approximately 3.5 million acres where we own the rights to sequester CO2 underground across the United States. While the timing and likelihood of additional cash flows being realized from further subsurface carbon dioxide sequestration opportunities, or other transitional energy opportunities such as the generation of electricity using geothermal,new solar and wind energy activities is uncertain, we believe our large ownership footprint throughout the United States will provide additional opportunities to create value in this regard with minimal capital investment by us.

lease. 

Soda Ash Business Segment

Revenues and other income in the first three monthsquarter of 2022 were higher by $12.92023 increased $4.4 million, or 30%, as compared to the prior year period as a result ofprimarily due to increased sales prices as compared to the prior year period. Freeprices. Cash provided by operating activities and free cash flow in the first quarter of 2022 increased $9.32023 decreased $2.6 million as compared to the prior year period due toas Sisecam Wyoming reinstating itspaid a higher regular quarterly cash distributions beginning in the fourth quarter of 2021. Strong demand growth for soda ash, driven by global secular trends including the investments in renewable energy, the electrification of the global auto fleet, and urbanization, coupled with constrained soda ash supply in part due to COVID-19 flash lockdowns in China have allowed Sisecam Wyoming to successfully pass on input cost inflation resulting in improved financial resultsdistribution in the first quarter of 2022.

20

2023. 

International prices remained strong in the first quarter of 2023 reflecting a continued supply constrained market for soda ash. Domestic soda ash prices were also strong during the first quarter of 2023 versus the prior year quarter due to negotiated 2023 domestic prices converging to international soda ash prices.

Results of Operations

First Three MonthsQuarter of 2023 and 2022 and 2021 Compared

Revenues and Other Income

The following table includes our revenues and other income by operating segment:

For the Three Months Ended March 31,IncreasePercentage
Change
Operating Segment (In thousands)20222021
Mineral Rights$74,879 $35,178 $39,701 113 %
Soda Ash14,837 1,973 12,864 652 %
Total$89,716 $37,151 $52,565 141 %

  

For the Three Months Ended March 31,

      

Percentage

 

Operating Segment (In thousands)

 

2023

  

2022

  

Increase

  

Change

 

Mineral Rights

 $79,965  $74,879  $5,086   7%

Soda Ash

  19,254   14,837   4,417   30%

Total

 $99,219  $89,716  $9,503   11%

The changes in revenues and other income isare discussed for each of the operating segments below:

21
19

Mineral Rights

The following table presents coal sales volumes, coal royalty revenue per ton and coal royalty revenues by major coal producing region, the significant categories of other revenues and other income:

 For the Three Months Ended March 31,Increase
(Decrease)
Percentage
Change
(In thousands, except per ton data)20222021
Coal sales volumes (tons)
Appalachia
Northern428 120 308 257 %
Central3,251 2,650 601 23 %
Southern361 100 261 261 %
Total Appalachia4,040 2,870 1,170 41 %
Illinois Basin1,502 2,658 (1,156)(43)%
Northern Powder River Basin1,238 1,059 179 17 %
Gulf Coast69 — 69 100 %
Total coal sales volumes6,849 6,587 262 %
Coal royalty revenue per ton
Appalachia
Northern$10.14 $3.64 $6.50 179 %
Central11.37 4.22 7.15 169 %
Southern17.56 5.28 12.28 233 %
Illinois Basin2.20 2.06 0.14 %
Northern Powder River Basin3.74 3.37 0.37 11 %
Gulf Coast0.55 — 0.55 100 %
Combined average coal royalty revenue per ton8.12 3.22 4.90 152 %
Coal royalty revenues
Appalachia
Northern$4,341 $437 $3,904 893 %
Central36,980 11,195 25,785 230 %
Southern6,340 528 5,812 1,101 %
Total Appalachia47,661 12,160 35,501 292 %
Illinois Basin3,303 5,483 (2,180)(40)%
Northern Powder River Basin4,632 3,573 1,059 30 %
Gulf Coast38 — 38 100 %
Unadjusted coal royalty revenues55,634 21,216 34,418 162 %
Coal royalty adjustment for minimum leases(185)(5,851)5,666 97 %
Total coal royalty revenues$55,449 $15,365 $40,084 261 %
Other revenues
Production lease minimum revenues$1,592 $3,450 $(1,858)(54)%
Minimum lease straight-line revenues4,783 6,096 (1,313)(22)%
Wheelage revenues3,717 1,781 1,936 109 %
Property tax revenues1,472 1,469 — %
Coal overriding royalty revenues258 1,859 (1,601)(86)%
Lease amendment revenues880 868 12 %
Aggregates royalty revenues770 454 316 70 %
Oil and gas royalty revenues1,814 1,366 448 33 %
Other revenues348 219 129 59 %
Total other revenues$15,634 $17,562 $(1,928)(11)%
Royalty and other mineral rights$71,083 $32,927 $38,156 116 %
Transportation and processing services revenues3,796 2,192 1,604 73 %
Gain on asset sales and disposals— 59 (59)(100)%
Total Mineral Rights segment revenues and other income$74,879 $35,178 $39,701 113 %

  

For the Three Months Ended March 31,

  

Increase

  

Percentage

 

(In thousands, except per ton data)

 

2023

  

2022

  

(Decrease)

  

Change

 

Coal sales volumes (tons)

                

Appalachia

                

Northern

  379   428   (49)  (11)%

Central

  3,609   3,251   358   11%

Southern

  582   361   221   61%

Total Appalachia

  4,570   4,040   530   13%

Illinois Basin

  1,310   1,502   (192)  (13)%

Northern Powder River Basin

  1,085   1,238   (153)  (12)%

Gulf Coast

  58   69   (11)  (16)%

Total coal sales volumes

  7,023   6,849   174   3%
                 

Coal royalty revenue per ton

                

Appalachia

                

Northern

 $9.86  $10.14  $(0.28)  (3)%

Central

  9.92   11.37   (1.45)  (13)%

Southern

  14.94   17.56   (2.62)  (15)%

Illinois Basin

  3.57   2.20   1.37   62%

Northern Powder River Basin

  4.68   3.74   0.94   25%

Gulf Coast

  0.57   0.55   0.02   4%

Combined average coal royalty revenue per ton

  8.26   8.12   0.14   2%
                 

Coal royalty revenues

                

Appalachia

                

Northern

 $3,737  $4,341  $(604)  (14)%

Central

  35,806   36,980   (1,174)  (3)%

Southern

  8,697   6,340   2,357   37%

Total Appalachia

  48,240   47,661   579   1%

Illinois Basin

  4,675   3,303   1,372   42%

Northern Powder River Basin

  5,075   4,632   443   10%

Gulf Coast

  33   38   (5)  (13)%

Unadjusted coal royalty revenues

  58,023   55,634   2,389   4%

Coal royalty adjustment for minimum leases

     (185)  185   100%

Total coal royalty revenues

 $58,023  $55,449  $2,574   5%
                 

Other revenues

                

Production lease minimum revenues

 $613  $1,592  $(979)  (61)%

Minimum lease straight-line revenues

  4,503   4,783   (280)  (6)%

Carbon neutral initiative revenues

  2,118      2,118   100%

Wheelage revenues

  3,869   3,717   152   4%

Property tax revenues

  1,470   1,472   (2)  (0)%

Coal overriding royalty revenues

  188   258   (70)  (27)%

Lease amendment revenues

  851   880   (29)  (3)%

Aggregates royalty revenues

  753   770   (17)  (2)%

Oil and gas royalty revenues

  3,588   1,814   1,774   98%

Other revenues

  295   348   (53)  (15)%

Total other revenues

 $18,248  $15,634  $2,614   17%

Royalty and other mineral rights

 $76,271  $71,083  $5,188   7%

Transportation and processing services revenues

  3,598   3,796   (198)  (5)%

Gain on asset sales and disposals

  96      96   100%

Total Mineral Rights segment revenues and other income

 $79,965  $74,879  $5,086   7%

22
20

Coal Royalty Revenues

Approximately 75% of coal royalty revenues and approximately 55% of coal royalty sales volumes were derived from metallurgical coal during the three months ended March 31, 2023. Total coal royaltyroyalty revenues increased $40.1$2.6 million as compared to the prior year quarter. The discussion by region is as follows:

Appalachia: Coal royalty revenues were essentially flat period-over-period as increased sales volumes more than offset the decrease in sales prices in the Southern Appalachia region. 

Illinois Basin: Coal royalty revenues increased $1.4 million primarily due to increased sales prices during the three months ended March 31, 2023, as compared to the prior year quarter.

Other Revenues

Total other revenues increased $2.6 million during the three months ended March 31, 20222023, as compared to the prior year period primarily as a result of higher sales prices and production volumes within the Appalachian Basin. The discussion by region is as follows:

Appalachia: Coal royalty revenues increased $35.5 million primarily due to significantly higher sales prices and a 41% increase in sales volumes as compared to the prior year period.
Illinois Basin: Coal royalty revenues decreased $2.2 millionquarter primarily due to a 43% decrease in sales volumes, partially offset by a 7% increase in sales prices as compared to the prior year period. Revenues recognized from Foresight in 2021 were fixed as a result of the lease amendment the Partnership entered into with Foresight pursuant to which Foresight agreed to pay NRP fixed cash payments to satisfy all obligations arising out of the existing various coal mining leases and transportation infrastructure fee agreements between the Partnership and Foresight. Revenues from Foresight in 2022 represent traditional royalty and minimum payments.
Northern Powder River Basin: Coal royalty revenues increased $1.1 million primarily due to a 17% increase in sales volumes and an 11% increase in sales prices as compared to the prior year period. 
Other Revenues
Other revenues decreased $1.9 million during the three months ended March 31, 2022 as compared to the prior year period primarily due to the following:
A $1.9 million decrease in production lease minimum revenues primarily as a result of breakage revenue recognized in the first quarter of 2021.
A $1.6 million decrease in coal overriding royalty revenues as a result of decreased production on the properties that pay us an override royalty fee.
A $1.3 million decrease in minimum lease straight-line revenues primarily as a result of lease modifications entered into in the first quarter of 2021.
These decreases were partially offset by a $1.9$2.1 million increase in wheelagecarbon neutral initiative revenues. Carbon neutral initiative revenues asrecognized in 2023 primarily related to a result of higher production from the properties that pay us a wheelage fee.
subsurface CO2 storage transaction.

Soda Ash


Revenues and other income related to our Soda Ash segment increased $12.9$4.4 million compared to the prior year quarter primarily as a result of increased sales prices as compared to the prior year period.


quarter.

Operating Expenses

The following table presents the significant categories of our consolidated operating expenses:

For the Three Months Ended March 31,Increase (Decrease)Percentage
Change
(In thousands)20222021
Operating expenses
Operating and maintenance expenses$8,076 $5,552 $2,524 45 %
Depreciation, depletion and amortization3,868 5,092 (1,224)(24)%
General and administrative expenses4,467 4,110 357 %
Asset impairments19 4,043 (4,024)(100)%
Total operating expenses$16,430 $18,797 $(2,367)(13)%

  

For the Three Months Ended March 31,

  

Increase

  

Percentage

 

(In thousands)

 

2023

  

2022

  

(Decrease)

  

Change

 

Operating expenses

                

Operating and maintenance expenses

 $7,163  $8,076  $(913)  (11)%

Depreciation, depletion and amortization

  4,083   3,868   215   6%

General and administrative expenses

  5,845   4,467   1,378   31%

Asset impairments

     19   (19)  (100)%

Total operating expenses

 $17,091  $16,430  $661   4%

Total operating expenses decreased $2.4were essentially flat period-over-period. The $1.4 million increase in general and administrative expenses, primarily duerelated to the following:

A $4.0increased incentive compensation expense, was partially offset by a $0.9 million decrease in asset impairmentsoperating and maintenance expenses, primarily driven by a decrease in bad debt expense.

Interest Expense, Net

Interest expense, net decreased $6.5 million as a result of less debt outstanding as compared to the prior year period. Asset impairments in the first three months of 2021 primarily related to a lease termination that resulted in the full impairment of a coal property.

quarter. 

23
21

A $1.2 million decrease in depreciation, depletion and amortization expense primarily as a result of decreased production at certain Illinois Basin coal properties.
These decreases were partially offset by a $2.5 million increase in operating and maintenance expenses as a result of an increase in bad debt expense in addition to higher costs related to an overriding royalty agreement with Western Pocahontas Properties Limited Partnership ("WPPLP"). The coal royalty expense NRP pays to WPPLP is fully offset by the coal royalty revenue NRP receives from this property.

Adjusted EBITDA (Non-GAAP Financial Measure)

The following table reconciles net income (loss) (the most comparable GAAP financial measure) to Adjusted EBITDA by business segment:

Operating Segments
For the Three Months Ended (In thousands)Mineral RightsSoda AshCorporate and FinancingTotal
March 31, 2022
Net income (loss)$62,967 $14,786 $(13,854)$63,899 
Less: equity earnings from unconsolidated investment— (14,837)— (14,837)
Add: total distributions from unconsolidated investment— 13,230 — 13,230 
Add: interest expense, net— — 9,387 9,387 
Add: depreciation, depletion and amortization3,868 — — 3,868 
Add: asset impairments19 — — 19 
Adjusted EBITDA$66,854 $13,179 $(4,467)$75,566 
March 31, 2021
Net income (loss)$20,488 $1,953 $(14,060)$8,381 
Less: equity earnings from unconsolidated investment— (1,973)— (1,973)
Add: total distributions from unconsolidated investment— 3,920 — 3,920 
Add: interest expense, net23 — 9,950 9,973 
Add: depreciation, depletion and amortization5,092 — — 5,092 
Add: asset impairments4,043 — — 4,043 
Adjusted EBITDA$29,646 $3,900 $(4,110)$29,436 

Adjusted EBITDA

  

Operating Segments

         

For the Three Months Ended (In thousands)

 

Mineral Rights

  

Soda Ash

  

Corporate and Financing

  

Total

 

March 31, 2023

                

Net income (loss)

 $68,881  $19,096  $(8,702) $79,275 

Less: equity earnings from unconsolidated investment

     (19,254)     (19,254)

Add: total distributions from unconsolidated investment

     10,780      10,780 

Add: interest expense, net

        2,853   2,853 

Add: depreciation, depletion and amortization

  4,079      4   4,083 

Add: asset impairments

            

Adjusted EBITDA

 $72,960  $10,622  $(5,845) $77,737 
                 

March 31, 2022

                

Net income (loss)

 $62,967  $14,786  $(13,854) $63,899 

Less: equity earnings from unconsolidated investment

     (14,837)     (14,837)

Add: total distributions from unconsolidated investment

     13,230      13,230 

Add: interest expense, net

        9,387   9,387 

Add: depreciation, depletion and amortization

  3,868         3,868 

Add: asset impairments

  19         19 

Adjusted EBITDA

 $66,854  $13,179  $(4,467) $75,566 

Net income increased $46.1$15.4 million primarily due to the decrease in interest expense, net and increase in revenues and other income, both discussed above. Adjusted EBITDA increased $2.2 million as compared to the prior year quarter primarily due to a $37.2$6.1 million increase in Adjusted EBITDA within our Mineral Rights segment as a result of higher revenues and other income asand lower operating and maintenance expenses, both discussed above,above. The increase in addition toAdjusted EBITDA within our Mineral Rights segment was partially offset by$9.3$2.6 million increasedecrease in Adjusted EBITDA within our Soda Ash segment as a result ofprimarily due to Sisecam Wyoming paying a higher cashquarterly distribution received from Sisecam Wyoming in the first three monthsquarter of 2022 as compareddiscussed above and a $1.4 decrease in Adjusted EBITDA within our Corporate and Financing segment due to the prior year period.

24

higher general and administrative expenses as discussed above.

Distributable Cash Flow ("DCF") and Free Cash Flow ("FCF") (Non-GAAP Financial Measures)

The following table presents the three major categories of the statement of cash flows by business segment:

  

Operating Segments

         

For the Three Months Ended (In thousands)

 

Mineral Rights

  

Soda Ash

  

Corporate and Financing

  

Total

 

March 31, 2023

                

Cash flow provided by (used in)

                

Operating activities

 $73,858  $10,617  $(11,575) $72,900 

Investing activities

  699      (2)  697 

Financing activities

  (583)     (94,450)  (95,033)
                 

March 31, 2022

                

Cash flow provided by (used in)

                

Operating activities

 $48,176  $13,195  $(9,040) $52,331 

Investing activities

            

Financing activities

  (614)     (51,647)  (52,261)

22

Operating Segments
For the Three Months Ended (In thousands)Mineral RightsSoda AshCorporate and FinancingTotal
March 31, 2022
Cash flow provided by (used in) continuing operations
Operating activities$48,176 $13,195 $(9,040)$52,331 
Investing activities— — — — 
Financing activities(614)— (51,647)(52,261)
March 31, 2021
Cash flow provided by (used in) continuing operations
Operating activities$25,962 $3,888 $(6,650)$23,200 
Investing activities600 — — 600 
Financing activities(132)— (26,691)(26,823)

The following table reconciles net cash provided by (used in) operating activities of continuing operations (the most comparable GAAP financial measure) by business segment to DCF and FCF:

Operating Segments
For the Three Months Ended (In thousands)Mineral RightsSoda AshCorporate and FinancingTotal
March 31, 2022
Net cash provided by (used in) operating activities of continuing operations$48,176 $13,195 $(9,040)$52,331 
Add: proceeds from asset sales and disposals— — — — 
Add: return of long-term contract receivable— — — — 
Distributable cash flow$48,176 $13,195 $(9,040)$52,331 
Less: proceeds from asset sales and disposals— — — — 
Free cash flow$48,176 $13,195 $(9,040)$52,331 
March 31, 2021
Net cash provided by (used in) operating activities of continuing operations$25,962 $3,888 $(6,650)$23,200 
Add: proceeds from asset sales and disposals59 — — 59 
Add: return of long-term contract receivable541 — — 541 
Distributable cash flow$26,562 $3,888 $(6,650)$23,800 
Less: proceeds from asset sales and disposals(59)— — (59)
Free cash flow$26,503 $3,888 $(6,650)$23,741 

25

  

Operating Segments

         

For the Three Months Ended (In thousands)

 

Mineral Rights

  

Soda Ash

  

Corporate and Financing

  

Total

 

March 31, 2023

                

Net cash provided by (used in) operating activities

 $73,858  $10,617  $(11,575) $72,900 

Add: proceeds from asset sales and disposals

  101         101 

Add: return of long-term contract receivable

  598         598 

Less: maintenance capital expenditures

        (2)  (2)

Distributable cash flow

 $74,557  $10,617  $(11,577) $73,597 

Less: proceeds from asset sales and disposals

  (101)        (101)

Free cash flow

 $74,456  $10,617  $(11,577) $73,496 
                 

March 31, 2022

                

Net cash provided by (used in) operating activities

 $48,176  $13,195  $(9,040) $52,331 

Add: proceeds from asset sales and disposals

            

Add: return of long-term contract receivable

            

Distributable cash flow

 $48,176  $13,195  $(9,040) $52,331 

Less: proceeds from asset sales and disposals

            

Free cash flow

 $48,176  $13,195  $(9,040) $52,331 

Operating cash flow, DCF and FCF increased $28.5$20.6 million, $21.3 million and $28.6$21.2 million, respectively, primarily due to the following:

an increase in cash flow within our Mineral Rights Segment
DCF and FCF increased $21.6 million and $21.7 million, respectively, primarily due to the segment's increase in revenues and other income as discussed above.
Soda Ash Segment
DCF and FCF increased $9.3 million as a result of the higher cash distribution received from Sisecam Wyoming in the first three months of 2022 as compared to the prior year period.
These increases weresegment, partially offset by a $2.4 million decrease in DCF and FCFcash flow within our Soda Ash and Corporate and Financing Segment primarily due to higher incentive compensation expense paid out in the first three months of 2022segments. The discussion by segment is as compared to the prior year period as a result of the Partnership's significantly improved operating performance during the year ended December 31, 2021, partially offset by lower cash paid for interest as our debt balance continues to decline.
follows:

Mineral Rights Segment

Operating cash flow, DCF and FCF increased $25.7 million, $26.4 million and $26.3 million, respectively, primarily due to the timing of minimum and royalty payments and prior year recoupments. 

Soda Ash Segment

Operating cash flow, DCF and FCF decreased $2.6 million primarily due to Sisecam Wyoming paying a higher quarterly distribution in the first quarter of 2022 as discussed above. 

Corporate and Financing Segment 

Operating cash flow, DCF and FCF decreased $2.5 million primarily due to increased cash paid for incentive compensation in the first quarter of 2023 because of the improved business performance in 2022 and higher cash paid for interest on credit facility borrowings in 2023. 

Liquidity and Capital Resources

Current Liquidity

As of March 31, 2022,2023, we had total liquidity of $235.6$56.5 million, consisting of $135.6$17.7 million of cash and cash equivalents and $100.0$38.8 million of borrowing capacity under our Opco Credit Facility. We have significant debt service obligations, including approximately $23 millionmillion of principal repayments on Opco’s senior notes, throughout the remainder of 2022. We believe2023. The following table calculates our liquidity position provides us with the flexibility to continue paying down debt and manage our business through the current market environment.leverage ratio as of March 31, 2023: 

  

For the Three Months Ended

     

(In thousands)

 

June 30, 2022

  

September 30, 2022

  

December 31, 2022

  

March 31, 2023

  

Last 12 Months

 

Net income

 $66,820  $74,555  $63,218  $79,275  $283,868 

Less: equity earnings from unconsolidated investment

  (14,643)  (14,556)  (15,759)  (19,254)  (64,212)

Add: total distributions from unconsolidated investment

  10,486   10,339   10,780   10,780   42,385 

Add: interest expense, net

  8,108   5,141   3,638   2,853   19,740 

Add: loss on extinguishment of debt

  4,048   2,484   3,933      10,465 

Add: depreciation, depletion and amortization

  5,847   6,850   5,954   4,083   22,734 

Add: asset impairments

  43   812   3,583      4,438 

Adjusted EBITDA

 $80,709  $85,625  $75,347  $77,737  $319,418 
                     

Debt—at March 31, 2023

                 $173,591 
                     

Leverage Ratio

                 

0.5 x

 

Cash Flows

Cash flows provided by operating activities increased $29.1$20.6 million, from $23.2 million in the three months ended March 31, 2021 to $52.3 million in the three months ended March 31, 2022 to $72.9 million in the three months ended March 31, 2023, primarily relateddue to increased revenues and other incomecash provided by operating activities within our Mineral Rights segment, partially offset by decreased cash provided by operating activities within our Soda Ash and $9.3 million of a higher cash distributions received from Sisecam Wyoming in the first three months of 2022 as compared to the prior year period.

Corporate and Financing segments, all discussed above. 

Cash flows used in financing activities increased $25.4$42.8 million, from $26.8 million used in the three months ended March 31, 2021 to $52.3 million used in the three months ended March 31, 2022 to $95.0 million used in the three months ended March 31, 2023, primarily due to the following:

$73.0 million of cash used to repay a portion of the Opco Credit Facility in the first quarter of 2023;

$48.1 million of cash used to redeem the preferred units the first quarter of 2023; and

$35.2 million of increased cash distributions to common unitholders and the general partner as a result of increasing our quarterly cash distribution to $0.75/unit beginning in the second quarter of 2022 in addition to the special distribution paid in the first quarter of 2023.

These increases in cash flow used were partially offset by $94.2 million of borrowings on our Opco Credit Facility in the first quarter of 2023 and $19.6 million redemption of cash used to redeem the preferred units paid-in-kind during the first quarter of 2022 in addition to $3.7 million of increased cash used for preferred unit distributions as a result of paying all of our preferred unit distributions in cash as compared to half in kind during the three months ended March 31, 2021.

2022. 

Capital Resources and Obligations

Debt, Net

We had the following debt outstanding as of March 31, 20222023 and December 31, 2021:

March 31,December 31,
(In thousands)20222021
Current portion of long-term debt, net$39,046 $39,102 
Long-term debt, net378,163 394,443 
Total debt, net$417,209 $433,545 
2022:

  

March 31,

  

December 31,

 

(In thousands)

 

2023

  

2022

 

Current portion of long-term debt, net

 $39,055  $39,076 

Long-term debt, net

  133,821   129,205 

Total debt, net

 $172,876  $168,281 

We have been and continue to be in compliance with the terms of the financial covenants contained in our debt agreements. For additional information regarding our debt and the agreements governing our debt, including the covenants contained therein, see Note 8.9. Debt, Net to the Consolidated Financial Statements included elsewhere in this Quarterly Report on Form 10-Q.


Off-Balance Sheet Transactions

We do not have any off-balance sheet arrangements with unconsolidated entities or related parties and accordingly, there are no off-balance sheet risks to our liquidity and capital resources from unconsolidated entities.

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Related Party Transactions

The information required set forth under Note 10.11. Related Party Transactions to the Consolidated Financial Statements is incorporated herein by reference.


Summary of Critical Accounting Estimates

The preparation of Consolidated Financial Statements in conformity with generally accepted accounting principles in the United States of America requires management to make certain estimates and assumptions that affect the amounts reported in the Consolidated Financial Statements and the accompanying notes. There have been no significant changes to our critical accounting estimates from those disclosed in our Annual Report on Form 10-K for the year ended December 31, 2021.

2022.

Recent Accounting Standards

We do not believe that any other recently issued, but not yet effective, accounting standards, if currently adopted, would have a material effect on our financial statements.

24


ITEM 3. QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK

As

We are exposed to market risk, which includes adverse changes in commodity prices and interest rates as discussed below:

Commodity Price Risk

Our revenues, operating results, financial condition and ability to borrow funds or obtain additional capital depend substantially on prevailing commodity prices. Historically, coal prices have been volatile, with prices fluctuating widely, and are likely to continue to be volatile. Depressed prices in the future would have a smaller reporting company, wenegative impact on our future financial results. In particular, substantially lower prices would significantly reduce revenues and could potentially trigger an impairment of our coal properties or a violation of certain financial debt covenants. Because substantially all our reserves are not requiredcoal, changes in coal prices have a more significant impact on our financial results. 

We are dependent upon the effective marketing of the coal mined by our lessees. Our lessees sell the coal under various long-term and short-term contracts as well as on the spot market. Current conditions in the coal industry may make it difficult for our lessees to include this disclosureextend existing contracts or enter into supply contracts with terms of one year or more. Our lessees' failure to negotiate long-term contracts could adversely affect the stability and profitability of our lessees' operations and adversely affect our future financial results. If more coal is sold on the spot market, coal royalty revenues may become more volatile due to fluctuations in spot coal prices. 

The market price of soda ash and energy costs directly affects the profitability of Sisecam Wyoming's operations. If the market price for soda ash declines, Sisecam Wyoming's sales revenues will decrease. Historically, the global market and, to a lesser extent, the domestic market for soda ash have been volatile and are likely to remain volatile in the future. 

Interest Rate Risk

Our exposure to changes in interest rates results from our Form 10-Q forborrowings under the quarterly period endedOpco Credit Facility, which is subject to variably interest rates based upon SOFR. At March 31, 2022.


2023, we had $91.2 million in borrowings outstanding under the Opco Credit Facility. If interest rates were to increase by 1%, annual interest expense would increase approximately $0.9 million, assuming the same principal amount remained outstanding during the year.

ITEM 4. CONTROLS AND PROCEDURES

Evaluation of Disclosure Controls and Procedures

Procedures

NRP carried out an evaluation of the effectiveness of the design and operation of its disclosure controls and procedures (as defined in Rules 13a-15(e) and 15d-15(e) of the Securities Exchange Act of 1934, as amended (the “Exchange Act”)) as of the end of the period covered by this report. This evaluation was performed under the supervision and with the participation of NRP management, including the Chief Executive Officer and Chief Financial Officer of the general partner of the general partner of NRP. Based upon that evaluation, the Chief Executive Officer and Chief Financial Officer concluded that these disclosure controls and procedures are effective in providing reasonable assurance that (a) the information required to be disclosed by us in the reports that we file or submit under the Exchange Act is recorded, processed, summarized and reported within the time periods specified in the Securities and Exchange Commission’s rules and forms, and (b) such information is accumulated and communicated to our management, including our CEO and CFO, as appropriate to allow timely decisions regarding required disclosure.

Changes in the Partnership’sPartnerships Internal Control Over Financial Reporting

There were no material changes in the Partnership’s internal control over financial reporting during the first three months of 20222023 that materially affected, or were reasonably likely to materially affect, the Partnership’s internal control over financial reporting.



ITEM 1. LEGAL PROCEEDINGS

From time to time, we are involved in various legal proceedings arising in the ordinary course of business. While the ultimate results of these proceedings cannot be predicted with certainty, we believe these ordinary course matters will not have a material effect on our financial position, liquidity or operations.

ITEM 1A. RISK FACTORS

During the period covered by this report, there were no material changes from the risk factors previously disclosed in Natural Resource Partners L.P.’s Annual Report on Form 10-K for the year ended December 31, 2021.

2022.

ITEM 2. UNREGISTERED SALES OF EQUITY SECURITIES AND USE OF PROCEEDS

None.


ITEM 3. DEFAULTS UPON SENIOR SECURITIES

None. 


ITEM 4. MINE SAFETY DISCLOSURES

None.


ITEM 5. OTHER INFORMATION

None.

28

ITEM 6. EXHIBITS

Exhibit

Number

Description

Exhibit
Number
3.1

Description

Fifth Amended and Restated Agreement of Limited Partnership of Natural Resource Partners L.P., dated as of March 2, 2017 (incorporated by reference to Exhibit 3.1 to Current Report on Form 8-K filed on March 6, 2017).

Fifth Amended and Restated Agreement of Limited Partnership of NRP (GP) LP, dated as of December 16, 2011 (incorporated by reference to Exhibit 3.1 to Current Report on Form 8-K filed on December 16, 2011).

Fifth Amended and Restated Limited Liability Company Agreement of GP Natural Resource Partners LLC, dated as of October 31, 2013 (incorporated by reference to Exhibit 3.1 to Current Report on Form 8-K filed on October 31, 2013).

Certificate of Limited Partnership of Natural Resource Partners L.P. (incorporated by reference to Exhibit 3.1 to the Registration Statement on Form S-1 filed April 19, 2002, File No. 333-86582).

Certification of Chief Executive Officer pursuant to Section 302 of Sarbanes-Oxley.
Certification of Chief Financial Officer pursuant to Section 302 of Sarbanes-Oxley.
Certification of Chief Executive Officer pursuant to 18 U.S.C. § 1350.
Certification of Chief Financial Officer pursuant to 18 U.S.C. § 1350.

101.INS*

Inline XBRL Instance Document

101.SCH*

Inline XBRL Taxonomy Extension Schema Document

101.CAL*

Inline XBRL Taxonomy Extension Calculation Linkbase Document

101.DEF*

Inline XBRL Taxonomy Extension Definition Linkbase Document

101.LAB*

Inline XBRL Taxonomy Extension Labels Linkbase Document

101.PRE*

Inline XBRL Taxonomy Extension Presentation Linkbase Document

104*

Cover Page Interactive Data File (formatted as inline XBRL with applicable taxonomy extension information contained in Exhibits 101)

*

Filed herewith

**

Furnished herewith




29
26

SIGNATURES

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

NATURAL RESOURCE PARTNERS L.P.

By:

NRP (GP) LP, its general partner

By:

GP NATURAL RESOURCE

PARTNERS LLC, its general partner

Date: May 5, 20224, 2023

By:

/s/ CORBIN J. ROBERTSON, JR.
Corbin J. Robertson, Jr.

Corbin J. Robertson, Jr.

Chairman of the Board and

Chief Executive Officer

(Principal Executive Officer)

Date: May 5, 20224, 2023

By:

/s/ CHRISTOPHER J. ZOLAS

Christopher J. Zolas

Christopher J. Zolas

Chief Financial Officer and Treasurer

(Principal Financial and Accounting Officer)



30
27