{"transactions":[{"id":760535,"issuer":{"id":8880,"kind":"organization","name":"NATURAL RESOURCE PARTNERS LP"},"owners":[{"id":43583,"kind":"person","name":"Craig Kevin J","position":1,"cik":"0001322654","reported_name":"Craig Kevin J","relationship":{"officer":true,"officer_title":"Executive Vice President"}}],"security":"COMMON UNITS","published_at":"2026-05-28T20:32:26.000Z","date":"2026-05-26","kind":"purchase","planned":false,"acquired":true,"shares":336,"price":102.18,"value":34332.48,"ownership":{"direct":true},"balance_after":47019,"source":{"system":"sec-edgar","filing":"0001437749-26-018760","document":"rdgdoc.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1171486/000143774926018760/rdgdoc.xml","form_type":"4"}},{"id":907975,"issuer":{"id":8880,"kind":"organization","name":"NATURAL RESOURCE PARTNERS LP"},"owners":[{"id":43583,"kind":"person","name":"Craig Kevin J","position":1,"cik":"0001322654","reported_name":"Craig Kevin J","relationship":{"officer":true,"officer_title":"Executive Vice President"}}],"security":"PHANTOM UNITS","published_at":"2026-02-12T22:13:23.000Z","date":"2026-02-10","kind":"exercise","planned":false,"acquired":true,"shares":377,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F5","text":"Phantom units representing the right to receive common units on a one-for-one basis, together with tandem distribution equivalent rights, were awarded in February 2025 under the issuer's LTIP. One-third of the phantom units vested on the first anniversary of the grant date and converted into common units on the reporting date. Accrued quarterly distributions made during the vesting period were paid in cash to the reporting person on the reporting date. The remaining phantom units under the 2025 award will vest in substantially equal installments on the second and third anniversaries of the grant date."},{"field":"price","element":"transactionPricePerShare","label":"F5","text":"Phantom units representing the right to receive common units on a one-for-one basis, together with tandem distribution equivalent rights, were awarded in February 2025 under the issuer's LTIP. One-third of the phantom units vested on the first anniversary of the grant date and converted into common units on the reporting date. Accrued quarterly distributions made during the vesting period were paid in cash to the reporting person on the reporting date. The remaining phantom units under the 2025 award will vest in substantially equal installments on the second and third anniversaries of the grant date."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F5","text":"Phantom units representing the right to receive common units on a one-for-one basis, together with tandem distribution equivalent rights, were awarded in February 2025 under the issuer's LTIP. One-third of the phantom units vested on the first anniversary of the grant date and converted into common units on the reporting date. Accrued quarterly distributions made during the vesting period were paid in cash to the reporting person on the reporting date. The remaining phantom units under the 2025 award will vest in substantially equal installments on the second and third anniversaries of the grant date."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F5","text":"Phantom units representing the right to receive common units on a one-for-one basis, together with tandem distribution equivalent rights, were awarded in February 2025 under the issuer's LTIP. One-third of the phantom units vested on the first anniversary of the grant date and converted into common units on the reporting date. Accrued quarterly distributions made during the vesting period were paid in cash to the reporting person on the reporting date. The remaining phantom units under the 2025 award will vest in substantially equal installments on the second and third anniversaries of the grant date."}],"balance_after":754,"derivative":{"underlying":"COMMON UNITS","underlying_shares":377},"source":{"system":"sec-edgar","filing":"0001437749-26-003968","document":"rdgdoc.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":6,"url":"https://www.sec.gov/Archives/edgar/data/1171486/000143774926003968/rdgdoc.xml","form_type":"4"}},{"id":907974,"issuer":{"id":8880,"kind":"organization","name":"NATURAL RESOURCE PARTNERS LP"},"owners":[{"id":43583,"kind":"person","name":"Craig Kevin J","position":1,"cik":"0001322654","reported_name":"Craig Kevin J","relationship":{"officer":true,"officer_title":"Executive Vice President"}}],"security":"PHANTOM UNITS","published_at":"2026-02-12T22:13:23.000Z","date":"2026-02-10","kind":"exercise","planned":false,"acquired":true,"shares":415,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F4","text":"Phantom units representing the right to receive common units on a one-for-one basis, together with tandem distribution equivalent rights, were awarded in February 2024 under the issuer's LTIP. One-third of the phantom units vested on the second anniversary of the grant date and converted into common units on the reporting date. Accrued quarterly distributions made during the vesting period were paid in cash to the reporting person on the reporting date. The remaining phantom units under the 2024 award will vest on the third anniversary of the grant date."},{"field":"price","element":"transactionPricePerShare","label":"F4","text":"Phantom units representing the right to receive common units on a one-for-one basis, together with tandem distribution equivalent rights, were awarded in February 2024 under the issuer's LTIP. One-third of the phantom units vested on the second anniversary of the grant date and converted into common units on the reporting date. Accrued quarterly distributions made during the vesting period were paid in cash to the reporting person on the reporting date. The remaining phantom units under the 2024 award will vest on the third anniversary of the grant date."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F4","text":"Phantom units representing the right to receive common units on a one-for-one basis, together with tandem distribution equivalent rights, were awarded in February 2024 under the issuer's LTIP. One-third of the phantom units vested on the second anniversary of the grant date and converted into common units on the reporting date. Accrued quarterly distributions made during the vesting period were paid in cash to the reporting person on the reporting date. The remaining phantom units under the 2024 award will vest on the third anniversary of the grant date."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F4","text":"Phantom units representing the right to receive common units on a one-for-one basis, together with tandem distribution equivalent rights, were awarded in February 2024 under the issuer's LTIP. One-third of the phantom units vested on the second anniversary of the grant date and converted into common units on the reporting date. Accrued quarterly distributions made during the vesting period were paid in cash to the reporting person on the reporting date. The remaining phantom units under the 2024 award will vest on the third anniversary of the grant date."}],"balance_after":415,"derivative":{"underlying":"COMMON UNITS","underlying_shares":415},"source":{"system":"sec-edgar","filing":"0001437749-26-003968","document":"rdgdoc.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/1171486/000143774926003968/rdgdoc.xml","form_type":"4"}},{"id":907973,"issuer":{"id":8880,"kind":"organization","name":"NATURAL RESOURCE PARTNERS LP"},"owners":[{"id":43583,"kind":"person","name":"Craig Kevin J","position":1,"cik":"0001322654","reported_name":"Craig Kevin J","relationship":{"officer":true,"officer_title":"Executive Vice President"}}],"security":"PHANTOM UNITS","published_at":"2026-02-12T22:13:23.000Z","date":"2026-02-10","kind":"exercise","planned":false,"acquired":true,"shares":4254,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F3","text":"Phantom units representing the right to receive common units on a one-for-one basis, together with tandem distribution equivalent rights, were awarded in February 2023 under the issuer's LTIP. One-third of the phantom units vested on the third anniversary of the grant date and converted into common units on the reporting date. Accrued quarterly distributions made during the vesting period were paid in cash to the reporting person on the reporting date."},{"field":"price","element":"transactionPricePerShare","label":"F3","text":"Phantom units representing the right to receive common units on a one-for-one basis, together with tandem distribution equivalent rights, were awarded in February 2023 under the issuer's LTIP. One-third of the phantom units vested on the third anniversary of the grant date and converted into common units on the reporting date. Accrued quarterly distributions made during the vesting period were paid in cash to the reporting person on the reporting date."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F3","text":"Phantom units representing the right to receive common units on a one-for-one basis, together with tandem distribution equivalent rights, were awarded in February 2023 under the issuer's LTIP. One-third of the phantom units vested on the third anniversary of the grant date and converted into common units on the reporting date. Accrued quarterly distributions made during the vesting period were paid in cash to the reporting person on the reporting date."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F3","text":"Phantom units representing the right to receive common units on a one-for-one basis, together with tandem distribution equivalent rights, were awarded in February 2023 under the issuer's LTIP. One-third of the phantom units vested on the third anniversary of the grant date and converted into common units on the reporting date. Accrued quarterly distributions made during the vesting period were paid in cash to the reporting person on the reporting date."}],"balance_after":0,"derivative":{"underlying":"COMMON UNITS","underlying_shares":4254},"source":{"system":"sec-edgar","filing":"0001437749-26-003968","document":"rdgdoc.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1171486/000143774926003968/rdgdoc.xml","form_type":"4"}},{"id":907972,"issuer":{"id":8880,"kind":"organization","name":"NATURAL RESOURCE PARTNERS LP"},"owners":[{"id":43583,"kind":"person","name":"Craig Kevin J","position":1,"cik":"0001322654","reported_name":"Craig Kevin J","relationship":{"officer":true,"officer_title":"Executive Vice President"}}],"security":"PERFORMANCE UNITS","published_at":"2026-02-12T22:13:23.000Z","date":"2026-02-10","kind":"exercise","planned":false,"acquired":true,"shares":6055,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F2","text":"Performance-based units representing the right to receive common units, together with tandem distribution equivalent rights, were awarded in February 2023 under the issuer's LTIP. The phantom units vested on the third anniversary of the grant date and converted into common units on the reporting date based upon the achievement of specified performance goals. Accrued quarterly distributions made during the vesting period were paid in cash to the reporting person on the reporting date."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"Performance-based units representing the right to receive common units, together with tandem distribution equivalent rights, were awarded in February 2023 under the issuer's LTIP. The phantom units vested on the third anniversary of the grant date and converted into common units on the reporting date based upon the achievement of specified performance goals. Accrued quarterly distributions made during the vesting period were paid in cash to the reporting person on the reporting date."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F2","text":"Performance-based units representing the right to receive common units, together with tandem distribution equivalent rights, were awarded in February 2023 under the issuer's LTIP. The phantom units vested on the third anniversary of the grant date and converted into common units on the reporting date based upon the achievement of specified performance goals. Accrued quarterly distributions made during the vesting period were paid in cash to the reporting person on the reporting date."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F2","text":"Performance-based units representing the right to receive common units, together with tandem distribution equivalent rights, were awarded in February 2023 under the issuer's LTIP. The phantom units vested on the third anniversary of the grant date and converted into common units on the reporting date based upon the achievement of specified performance goals. Accrued quarterly distributions made during the vesting period were paid in cash to the reporting person on the reporting date."}],"balance_after":0,"derivative":{"underlying":"COMMON UNITS","underlying_shares":6055},"source":{"system":"sec-edgar","filing":"0001437749-26-003968","document":"rdgdoc.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1171486/000143774926003968/rdgdoc.xml","form_type":"4"}},{"id":907971,"issuer":{"id":8880,"kind":"organization","name":"NATURAL RESOURCE PARTNERS LP"},"owners":[{"id":43583,"kind":"person","name":"Craig Kevin J","position":1,"cik":"0001322654","reported_name":"Craig Kevin J","relationship":{"officer":true,"officer_title":"Executive Vice President"}}],"security":"COMMON UNITS","published_at":"2026-02-12T22:13:23.000Z","date":"2026-02-10","kind":"tax_withholding","planned":false,"acquired":false,"shares":4923,"price":123.04,"value":605725.92,"ownership":{"direct":true},"balance_after":46683,"source":{"system":"sec-edgar","filing":"0001437749-26-003968","document":"rdgdoc.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1171486/000143774926003968/rdgdoc.xml","form_type":"4"}},{"id":907970,"issuer":{"id":8880,"kind":"organization","name":"NATURAL RESOURCE PARTNERS LP"},"owners":[{"id":43583,"kind":"person","name":"Craig Kevin J","position":1,"cik":"0001322654","reported_name":"Craig Kevin J","relationship":{"officer":true,"officer_title":"Executive Vice President"}}],"security":"COMMON UNITS","published_at":"2026-02-12T22:13:23.000Z","date":"2026-02-10","kind":"exercise","planned":false,"acquired":true,"shares":11101,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"Common units were issued upon conversion of phantom units previously awarded under the issuer's long-term incentive plan (\"LTIP\") as further described in notes (2), (3), (4) and (5) below."}],"balance_after":51606,"source":{"system":"sec-edgar","filing":"0001437749-26-003968","document":"rdgdoc.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1171486/000143774926003968/rdgdoc.xml","form_type":"4"}},{"id":916309,"issuer":{"id":8880,"kind":"organization","name":"NATURAL RESOURCE PARTNERS LP"},"owners":[{"id":43583,"kind":"person","name":"Craig Kevin J","position":1,"cik":"0001322654","reported_name":"Craig Kevin J","relationship":{"officer":true,"officer_title":"Executive Vice President"}}],"security":"PHANTOM UNITS","published_at":"2026-02-06T17:28:45.000Z","date":"2026-02-04","kind":"grant","planned":false,"acquired":true,"shares":1238,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"security","element":"securityTitle","label":"F1","text":"Represents phantom units awarded under the issuer's 2017 Long-Term Incentive Plan. Each phantom unit represents the right to receive one common unit upon vesting and includes the right to receive tandem distribution equivalent rights, pursuant to which the quarterly distributions paid by the partnership on each unit will be accrued over the vesting period and paid in cash upon vesting."},{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"Represents phantom units awarded under the issuer's 2017 Long-Term Incentive Plan. Each phantom unit represents the right to receive one common unit upon vesting and includes the right to receive tandem distribution equivalent rights, pursuant to which the quarterly distributions paid by the partnership on each unit will be accrued over the vesting period and paid in cash upon vesting."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F2","text":"The phantom units will vest in three substantially equal annual installments beginning on February 4, 2027."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F2","text":"The phantom units will vest in three substantially equal annual installments beginning on February 4, 2027."}],"balance_after":1238,"derivative":{"underlying":"COMMON UNITS","underlying_shares":1238},"source":{"system":"sec-edgar","filing":"0001437749-26-003309","document":"rdgdoc.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1171486/000143774926003309/rdgdoc.xml","form_type":"4"}},{"id":1272085,"issuer":{"id":8880,"kind":"organization","name":"NATURAL RESOURCE PARTNERS LP"},"owners":[{"id":43583,"kind":"person","name":"Craig Kevin J","position":1,"cik":"0001322654","reported_name":"Craig Kevin J","relationship":{"officer":true,"officer_title":"Executive Vice President"}}],"security":"PHANTOM UNITS","published_at":"2025-02-12T22:15:13.000Z","date":"2025-02-11","kind":"exercise","planned":false,"acquired":true,"shares":414,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F4","text":"Phantom units representing the right to receive common units on a one-for-one basis, together with tandem distribution equivalent rights, were awarded in February 2024 under the issuer's LTIP. One-third of the phantom units vested on the first anniversary of the grant date and converted into common units on the reporting date. Accrued quarterly distributions made during the vesting period were paid in cash to the reporting person on the reporting date. The remaining phantom units under the 2024 award will vest in substantially equal installments on the second and third anniversaries of the grant date."},{"field":"price","element":"transactionPricePerShare","label":"F4","text":"Phantom units representing the right to receive common units on a one-for-one basis, together with tandem distribution equivalent rights, were awarded in February 2024 under the issuer's LTIP. One-third of the phantom units vested on the first anniversary of the grant date and converted into common units on the reporting date. Accrued quarterly distributions made during the vesting period were paid in cash to the reporting person on the reporting date. The remaining phantom units under the 2024 award will vest in substantially equal installments on the second and third anniversaries of the grant date."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F4","text":"Phantom units representing the right to receive common units on a one-for-one basis, together with tandem distribution equivalent rights, were awarded in February 2024 under the issuer's LTIP. One-third of the phantom units vested on the first anniversary of the grant date and converted into common units on the reporting date. Accrued quarterly distributions made during the vesting period were paid in cash to the reporting person on the reporting date. The remaining phantom units under the 2024 award will vest in substantially equal installments on the second and third anniversaries of the grant date."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F4","text":"Phantom units representing the right to receive common units on a one-for-one basis, together with tandem distribution equivalent rights, were awarded in February 2024 under the issuer's LTIP. One-third of the phantom units vested on the first anniversary of the grant date and converted into common units on the reporting date. Accrued quarterly distributions made during the vesting period were paid in cash to the reporting person on the reporting date. The remaining phantom units under the 2024 award will vest in substantially equal installments on the second and third anniversaries of the grant date."}],"balance_after":830,"derivative":{"underlying":"COMMON UNITS","underlying_shares":414},"source":{"system":"sec-edgar","filing":"0001567619-25-000141","document":"form4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/1171486/000156761925000141/form4.xml","form_type":"4"}},{"id":1272084,"issuer":{"id":8880,"kind":"organization","name":"NATURAL RESOURCE PARTNERS LP"},"owners":[{"id":43583,"kind":"person","name":"Craig Kevin J","position":1,"cik":"0001322654","reported_name":"Craig Kevin J","relationship":{"officer":true,"officer_title":"Executive Vice President"}}],"security":"PHANTOM UNITS","published_at":"2025-02-12T22:15:13.000Z","date":"2025-02-11","kind":"exercise","planned":false,"acquired":true,"shares":4252,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F3","text":"Phantom units representing the right to receive common units on a one-for-one basis, together with tandem distribution equivalent rights, were awarded in February 2023 under the issuer's LTIP. One-third of the phantom units vested on the second anniversary of the grant date and converted into common units on the reporting date. Accrued quarterly distributions made during the vesting period were paid in cash to the reporting person on the reporting date. The remaining phantom units under the 2023 award will vest on the third anniversary of the grant date."},{"field":"price","element":"transactionPricePerShare","label":"F3","text":"Phantom units representing the right to receive common units on a one-for-one basis, together with tandem distribution equivalent rights, were awarded in February 2023 under the issuer's LTIP. One-third of the phantom units vested on the second anniversary of the grant date and converted into common units on the reporting date. Accrued quarterly distributions made during the vesting period were paid in cash to the reporting person on the reporting date. The remaining phantom units under the 2023 award will vest on the third anniversary of the grant date."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F3","text":"Phantom units representing the right to receive common units on a one-for-one basis, together with tandem distribution equivalent rights, were awarded in February 2023 under the issuer's LTIP. One-third of the phantom units vested on the second anniversary of the grant date and converted into common units on the reporting date. Accrued quarterly distributions made during the vesting period were paid in cash to the reporting person on the reporting date. The remaining phantom units under the 2023 award will vest on the third anniversary of the grant date."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F3","text":"Phantom units representing the right to receive common units on a one-for-one basis, together with tandem distribution equivalent rights, were awarded in February 2023 under the issuer's LTIP. One-third of the phantom units vested on the second anniversary of the grant date and converted into common units on the reporting date. Accrued quarterly distributions made during the vesting period were paid in cash to the reporting person on the reporting date. The remaining phantom units under the 2023 award will vest on the third anniversary of the grant date."}],"balance_after":4254,"derivative":{"underlying":"COMMON UNITS","underlying_shares":4252},"source":{"system":"sec-edgar","filing":"0001567619-25-000141","document":"form4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1171486/000156761925000141/form4.xml","form_type":"4"}},{"id":1272083,"issuer":{"id":8880,"kind":"organization","name":"NATURAL RESOURCE PARTNERS LP"},"owners":[{"id":43583,"kind":"person","name":"Craig Kevin J","position":1,"cik":"0001322654","reported_name":"Craig Kevin J","relationship":{"officer":true,"officer_title":"Executive Vice President"}}],"security":"PHANTOM UNITS","published_at":"2025-02-12T22:15:13.000Z","date":"2025-02-11","kind":"exercise","planned":false,"acquired":true,"shares":4429,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F2","text":"Phantom units representing the right to receive common units on a one-for-one basis, together with tandem distribution equivalent rights, were awarded in February 2022 under the issuer's LTIP. One-third of the phantom units vested on the third anniversary of the grant date and converted into common units on the reporting date. Accrued quarterly distributions made during the vesting period were paid in cash to the reporting person on the reporting date."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"Phantom units representing the right to receive common units on a one-for-one basis, together with tandem distribution equivalent rights, were awarded in February 2022 under the issuer's LTIP. One-third of the phantom units vested on the third anniversary of the grant date and converted into common units on the reporting date. Accrued quarterly distributions made during the vesting period were paid in cash to the reporting person on the reporting date."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F2","text":"Phantom units representing the right to receive common units on a one-for-one basis, together with tandem distribution equivalent rights, were awarded in February 2022 under the issuer's LTIP. One-third of the phantom units vested on the third anniversary of the grant date and converted into common units on the reporting date. Accrued quarterly distributions made during the vesting period were paid in cash to the reporting person on the reporting date."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F2","text":"Phantom units representing the right to receive common units on a one-for-one basis, together with tandem distribution equivalent rights, were awarded in February 2022 under the issuer's LTIP. One-third of the phantom units vested on the third anniversary of the grant date and converted into common units on the reporting date. Accrued quarterly distributions made during the vesting period were paid in cash to the reporting person on the reporting date."}],"balance_after":0,"derivative":{"underlying":"COMMON UNITS","underlying_shares":4429},"source":{"system":"sec-edgar","filing":"0001567619-25-000141","document":"form4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1171486/000156761925000141/form4.xml","form_type":"4"}},{"id":1272082,"issuer":{"id":8880,"kind":"organization","name":"NATURAL RESOURCE PARTNERS LP"},"owners":[{"id":43583,"kind":"person","name":"Craig Kevin J","position":1,"cik":"0001322654","reported_name":"Craig Kevin J","relationship":{"officer":true,"officer_title":"Executive Vice President"}}],"security":"COMMON UNITS","published_at":"2025-02-12T22:15:13.000Z","date":"2025-02-11","kind":"tax_withholding","planned":false,"acquired":false,"shares":3852,"price":102.72,"value":395677.44,"ownership":{"direct":true},"balance_after":40505,"source":{"system":"sec-edgar","filing":"0001567619-25-000141","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1171486/000156761925000141/form4.xml","form_type":"4"}},{"id":1272081,"issuer":{"id":8880,"kind":"organization","name":"NATURAL RESOURCE PARTNERS LP"},"owners":[{"id":43583,"kind":"person","name":"Craig Kevin J","position":1,"cik":"0001322654","reported_name":"Craig Kevin J","relationship":{"officer":true,"officer_title":"Executive Vice President"}}],"security":"COMMON UNITS","published_at":"2025-02-12T22:15:13.000Z","date":"2025-02-11","kind":"exercise","planned":false,"acquired":true,"shares":9095,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"Common units were issued upon conversion of phantom units previously awarded under the issuer's long-term incentive plan (\"LTIP\") as further described in notes (2), (3) and (4) below."}],"balance_after":44357,"source":{"system":"sec-edgar","filing":"0001567619-25-000141","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1171486/000156761925000141/form4.xml","form_type":"4"}},{"id":1280543,"issuer":{"id":8880,"kind":"organization","name":"NATURAL RESOURCE PARTNERS LP"},"owners":[{"id":43583,"kind":"person","name":"Craig Kevin J","position":1,"cik":"0001322654","reported_name":"Craig Kevin J","relationship":{"officer":true,"officer_title":"Executive Vice President"}}],"security":"Phantom Units","published_at":"2025-02-06T17:02:38.000Z","date":"2025-02-05","kind":"grant","planned":false,"acquired":true,"shares":1131,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"security","element":"securityTitle","label":"F1","text":"Represents phantom units awarded under the issuer's 2017 Long-Term Incentive Plan. Each phantom unit represents the right to receive one common unit upon vesting and includes the right to receive tandem distribution equivalent rights, pursuant to which the quarterly distributions paid\nby the partnership on each unit will be accrued over the vesting period and paid in cash upon vesting."},{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"Represents phantom units awarded under the issuer's 2017 Long-Term Incentive Plan. Each phantom unit represents the right to receive one common unit upon vesting and includes the right to receive tandem distribution equivalent rights, pursuant to which the quarterly distributions paid\nby the partnership on each unit will be accrued over the vesting period and paid in cash upon vesting."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F2","text":"The phantom units will vest in three substantially equal annual installments beginning on February 5, 2026."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F2","text":"The phantom units will vest in three substantially equal annual installments beginning on February 5, 2026."}],"balance_after":1131,"derivative":{"underlying":"Common Units","underlying_shares":1131},"source":{"system":"sec-edgar","filing":"0001567619-25-000073","document":"form4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1171486/000156761925000073/form4.xml","form_type":"4"}},{"id":1634527,"issuer":{"id":8880,"kind":"organization","name":"NATURAL RESOURCE PARTNERS LP"},"owners":[{"id":43583,"kind":"person","name":"Craig Kevin J","position":1,"cik":"0001322654","reported_name":"Craig Kevin J","relationship":{"officer":true,"officer_title":"Executive Vice President"}}],"security":"PHANTOM UNITS","published_at":"2024-02-20T21:07:46.000Z","date":"2024-02-15","kind":"exercise","planned":false,"acquired":true,"shares":4252,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F4","text":"Phantom units representing the right to receive common units on a one-for-one basis, together with tandem distribution equivalent rights, were awarded in February 2023 under the issuer's LTIP. One-third of the phantom units vested on the first anniversary of the grant date and converted into common units on the reporting date. Accrued quarterly distributions made during the vesting period were paid in cash to the reporting person on the reporting date. The remaining phantom units under the 2023 award will vest in substantially equal installments on the second and third anniversaries of the grant date."},{"field":"price","element":"transactionPricePerShare","label":"F4","text":"Phantom units representing the right to receive common units on a one-for-one basis, together with tandem distribution equivalent rights, were awarded in February 2023 under the issuer's LTIP. One-third of the phantom units vested on the first anniversary of the grant date and converted into common units on the reporting date. Accrued quarterly distributions made during the vesting period were paid in cash to the reporting person on the reporting date. The remaining phantom units under the 2023 award will vest in substantially equal installments on the second and third anniversaries of the grant date."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F4","text":"Phantom units representing the right to receive common units on a one-for-one basis, together with tandem distribution equivalent rights, were awarded in February 2023 under the issuer's LTIP. One-third of the phantom units vested on the first anniversary of the grant date and converted into common units on the reporting date. Accrued quarterly distributions made during the vesting period were paid in cash to the reporting person on the reporting date. The remaining phantom units under the 2023 award will vest in substantially equal installments on the second and third anniversaries of the grant date."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F4","text":"Phantom units representing the right to receive common units on a one-for-one basis, together with tandem distribution equivalent rights, were awarded in February 2023 under the issuer's LTIP. One-third of the phantom units vested on the first anniversary of the grant date and converted into common units on the reporting date. Accrued quarterly distributions made during the vesting period were paid in cash to the reporting person on the reporting date. The remaining phantom units under the 2023 award will vest in substantially equal installments on the second and third anniversaries of the grant date."}],"balance_after":8506,"derivative":{"underlying":"COMMON UNITS","underlying_shares":4252},"source":{"system":"sec-edgar","filing":"0001171486-24-000051","document":"form4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/1171486/000117148624000051/form4.xml","form_type":"4"}},{"id":1634526,"issuer":{"id":8880,"kind":"organization","name":"NATURAL RESOURCE PARTNERS LP"},"owners":[{"id":43583,"kind":"person","name":"Craig Kevin J","position":1,"cik":"0001322654","reported_name":"Craig Kevin J","relationship":{"officer":true,"officer_title":"Executive Vice President"}}],"security":"PHANTOM UNITS","published_at":"2024-02-20T21:07:46.000Z","date":"2024-02-15","kind":"exercise","planned":false,"acquired":true,"shares":4429,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F3","text":"Phantom units representing the right to receive common units on a one-for-one basis, together with tandem distribution equivalent rights, were awarded in February 2022 under the issuer's LTIP. One-third of the phantom units vested on the second anniversary of the grant date and converted into common units on the reporting date. Accrued quarterly distributions made during the vesting period were paid in cash to the reporting person on the reporting date. The remaining phantom units under the 2022 award will vest on the third anniversary of the grant date."},{"field":"price","element":"transactionPricePerShare","label":"F3","text":"Phantom units representing the right to receive common units on a one-for-one basis, together with tandem distribution equivalent rights, were awarded in February 2022 under the issuer's LTIP. One-third of the phantom units vested on the second anniversary of the grant date and converted into common units on the reporting date. Accrued quarterly distributions made during the vesting period were paid in cash to the reporting person on the reporting date. The remaining phantom units under the 2022 award will vest on the third anniversary of the grant date."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F3","text":"Phantom units representing the right to receive common units on a one-for-one basis, together with tandem distribution equivalent rights, were awarded in February 2022 under the issuer's LTIP. One-third of the phantom units vested on the second anniversary of the grant date and converted into common units on the reporting date. Accrued quarterly distributions made during the vesting period were paid in cash to the reporting person on the reporting date. The remaining phantom units under the 2022 award will vest on the third anniversary of the grant date."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F3","text":"Phantom units representing the right to receive common units on a one-for-one basis, together with tandem distribution equivalent rights, were awarded in February 2022 under the issuer's LTIP. One-third of the phantom units vested on the second anniversary of the grant date and converted into common units on the reporting date. Accrued quarterly distributions made during the vesting period were paid in cash to the reporting person on the reporting date. The remaining phantom units under the 2022 award will vest on the third anniversary of the grant date."}],"balance_after":4429,"derivative":{"underlying":"COMMON UNITS","underlying_shares":4429},"source":{"system":"sec-edgar","filing":"0001171486-24-000051","document":"form4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1171486/000117148624000051/form4.xml","form_type":"4"}},{"id":1634525,"issuer":{"id":8880,"kind":"organization","name":"NATURAL RESOURCE PARTNERS LP"},"owners":[{"id":43583,"kind":"person","name":"Craig Kevin J","position":1,"cik":"0001322654","reported_name":"Craig Kevin J","relationship":{"officer":true,"officer_title":"Executive Vice President"}}],"security":"PHANTOM UNITS","published_at":"2024-02-20T21:07:46.000Z","date":"2024-02-15","kind":"exercise","planned":false,"acquired":true,"shares":5470,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F2","text":"Phantom units representing the right to receive common units on a one-for-one basis, together with tandem distribution equivalent rights, were awarded in February 2021 under the issuer's LTIP. One-third of the phantom units vested on the third anniversary of the grant date and converted into common units on the reporting date. Accrued quarterly distributions made during the vesting period were paid in cash to the reporting person on the reporting date."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"Phantom units representing the right to receive common units on a one-for-one basis, together with tandem distribution equivalent rights, were awarded in February 2021 under the issuer's LTIP. One-third of the phantom units vested on the third anniversary of the grant date and converted into common units on the reporting date. Accrued quarterly distributions made during the vesting period were paid in cash to the reporting person on the reporting date."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F2","text":"Phantom units representing the right to receive common units on a one-for-one basis, together with tandem distribution equivalent rights, were awarded in February 2021 under the issuer's LTIP. One-third of the phantom units vested on the third anniversary of the grant date and converted into common units on the reporting date. Accrued quarterly distributions made during the vesting period were paid in cash to the reporting person on the reporting date."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F2","text":"Phantom units representing the right to receive common units on a one-for-one basis, together with tandem distribution equivalent rights, were awarded in February 2021 under the issuer's LTIP. One-third of the phantom units vested on the third anniversary of the grant date and converted into common units on the reporting date. Accrued quarterly distributions made during the vesting period were paid in cash to the reporting person on the reporting date."}],"balance_after":0,"derivative":{"underlying":"COMMON UNITS","underlying_shares":5470},"source":{"system":"sec-edgar","filing":"0001171486-24-000051","document":"form4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1171486/000117148624000051/form4.xml","form_type":"4"}},{"id":1634524,"issuer":{"id":8880,"kind":"organization","name":"NATURAL RESOURCE PARTNERS LP"},"owners":[{"id":43583,"kind":"person","name":"Craig Kevin J","position":1,"cik":"0001322654","reported_name":"Craig Kevin J","relationship":{"officer":true,"officer_title":"Executive Vice President"}}],"security":"COMMON UNITS","published_at":"2024-02-20T21:07:46.000Z","date":"2024-02-15","kind":"tax_withholding","planned":false,"acquired":false,"shares":5993,"price":86.91,"value":520851.63,"ownership":{"direct":true},"balance_after":35262,"source":{"system":"sec-edgar","filing":"0001171486-24-000051","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1171486/000117148624000051/form4.xml","form_type":"4"}},{"id":1634523,"issuer":{"id":8880,"kind":"organization","name":"NATURAL RESOURCE PARTNERS LP"},"owners":[{"id":43583,"kind":"person","name":"Craig Kevin J","position":1,"cik":"0001322654","reported_name":"Craig Kevin J","relationship":{"officer":true,"officer_title":"Executive Vice President"}}],"security":"COMMON UNITS","published_at":"2024-02-20T21:07:46.000Z","date":"2024-02-15","kind":"exercise","planned":false,"acquired":true,"shares":14151,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"Common units were issued upon conversion of phantom units previously awarded under the issuer's long-term incentive plan (\"LTIP\") as further described in notes (2), (3) and (4) below."}],"balance_after":41255,"source":{"system":"sec-edgar","filing":"0001171486-24-000051","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1171486/000117148624000051/form4.xml","form_type":"4"}},{"id":1653834,"issuer":{"id":8880,"kind":"organization","name":"NATURAL RESOURCE PARTNERS LP"},"owners":[{"id":43583,"kind":"person","name":"Craig Kevin J","position":1,"cik":"0001322654","reported_name":"Craig Kevin J","relationship":{"officer":true,"officer_title":"Executive Vice President"}}],"security":"Phantom Units","published_at":"2024-02-08T19:44:27.000Z","date":"2024-02-07","kind":"grant","planned":false,"acquired":true,"shares":1244,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"security","element":"securityTitle","label":"F1","text":"Represents phantom units awarded under the issuer's 2017 Long-Term Incentive Plan. Each phantom unit represents the right to receive one common unit upon vesting and includes the right to receive tandem distribution equivalent rights, pursuant to which the quarterly distributions paid by the partnership on each unit will be accrued over the vesting period and paid in cash upon vesting."},{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"Represents phantom units awarded under the issuer's 2017 Long-Term Incentive Plan. Each phantom unit represents the right to receive one common unit upon vesting and includes the right to receive tandem distribution equivalent rights, pursuant to which the quarterly distributions paid by the partnership on each unit will be accrued over the vesting period and paid in cash upon vesting."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F2","text":"The phantom units will vest in three substantially equal annual installments beginning on February 7, 2025."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F2","text":"The phantom units will vest in three substantially equal annual installments beginning on February 7, 2025."}],"balance_after":1244,"derivative":{"underlying":"Common Units","underlying_shares":1244},"source":{"system":"sec-edgar","filing":"0001171486-24-000012","document":"form4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1171486/000117148624000012/form4.xml","form_type":"4"}},{"id":2011420,"issuer":{"id":8880,"kind":"organization","name":"NATURAL RESOURCE PARTNERS LP"},"owners":[{"id":43583,"kind":"person","name":"Craig Kevin J","position":1,"cik":"0001322654","reported_name":"Craig Kevin J","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Executive Vice President"}}],"security":"Phantom Units","published_at":"2023-02-16T22:23:06.000Z","date":"2023-02-15","kind":"exercise","acquired":true,"shares":4428,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F4","text":"Phantom units representing the right to receive common units on a one-for-one basis, together with tandem distribution equivalent rights, were awarded in February 2022 under the issuer's LTIP.   One-third of the phantom units vested on the first anniversary of the grant date and converted into common units on the reporting date.  Accrued quarterly distributions made during the vesting period were paid in cash to the reporting person on the reporting date.  The remaining phantom units under the 2022 award will vest in substantially equal installments on the second and third anniversaries of the grant date."},{"field":"price","element":"transactionPricePerShare","label":"F4","text":"Phantom units representing the right to receive common units on a one-for-one basis, together with tandem distribution equivalent rights, were awarded in February 2022 under the issuer's LTIP.   One-third of the phantom units vested on the first anniversary of the grant date and converted into common units on the reporting date.  Accrued quarterly distributions made during the vesting period were paid in cash to the reporting person on the reporting date.  The remaining phantom units under the 2022 award will vest in substantially equal installments on the second and third anniversaries of the grant date."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F4","text":"Phantom units representing the right to receive common units on a one-for-one basis, together with tandem distribution equivalent rights, were awarded in February 2022 under the issuer's LTIP.   One-third of the phantom units vested on the first anniversary of the grant date and converted into common units on the reporting date.  Accrued quarterly distributions made during the vesting period were paid in cash to the reporting person on the reporting date.  The remaining phantom units under the 2022 award will vest in substantially equal installments on the second and third anniversaries of the grant date."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F4","text":"Phantom units representing the right to receive common units on a one-for-one basis, together with tandem distribution equivalent rights, were awarded in February 2022 under the issuer's LTIP.   One-third of the phantom units vested on the first anniversary of the grant date and converted into common units on the reporting date.  Accrued quarterly distributions made during the vesting period were paid in cash to the reporting person on the reporting date.  The remaining phantom units under the 2022 award will vest in substantially equal installments on the second and third anniversaries of the grant date."}],"balance_after":8858,"derivative":{"underlying":"Common Units","underlying_shares":4428},"source":{"system":"sec-edgar","filing":"0001567619-23-003201","document":"doc1.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/1171486/000156761923003201/doc1.xml","form_type":"4"}},{"id":2011419,"issuer":{"id":8880,"kind":"organization","name":"NATURAL RESOURCE PARTNERS LP"},"owners":[{"id":43583,"kind":"person","name":"Craig Kevin J","position":1,"cik":"0001322654","reported_name":"Craig Kevin J","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Executive Vice President"}}],"security":"Phantom Units","published_at":"2023-02-16T22:23:06.000Z","date":"2023-02-15","kind":"exercise","acquired":true,"shares":5470,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F3","text":"Phantom units representing the right to receive common units on a one-for-one basis, together with tandem distribution equivalent rights, were awarded in February 2021 under the issuer's LTIP.   One-third of the phantom units vested on the second anniversary of the grant date and converted into common units on the reporting date.  Accrued quarterly distributions made during the vesting period were paid in cash to the reporting person on the reporting date.  The remaining phantom units under the 2021 award will vest on the third anniversary of the grant date."},{"field":"price","element":"transactionPricePerShare","label":"F3","text":"Phantom units representing the right to receive common units on a one-for-one basis, together with tandem distribution equivalent rights, were awarded in February 2021 under the issuer's LTIP.   One-third of the phantom units vested on the second anniversary of the grant date and converted into common units on the reporting date.  Accrued quarterly distributions made during the vesting period were paid in cash to the reporting person on the reporting date.  The remaining phantom units under the 2021 award will vest on the third anniversary of the grant date."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F3","text":"Phantom units representing the right to receive common units on a one-for-one basis, together with tandem distribution equivalent rights, were awarded in February 2021 under the issuer's LTIP.   One-third of the phantom units vested on the second anniversary of the grant date and converted into common units on the reporting date.  Accrued quarterly distributions made during the vesting period were paid in cash to the reporting person on the reporting date.  The remaining phantom units under the 2021 award will vest on the third anniversary of the grant date."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F3","text":"Phantom units representing the right to receive common units on a one-for-one basis, together with tandem distribution equivalent rights, were awarded in February 2021 under the issuer's LTIP.   One-third of the phantom units vested on the second anniversary of the grant date and converted into common units on the reporting date.  Accrued quarterly distributions made during the vesting period were paid in cash to the reporting person on the reporting date.  The remaining phantom units under the 2021 award will vest on the third anniversary of the grant date."}],"balance_after":5470,"derivative":{"underlying":"Common Units","underlying_shares":5470},"source":{"system":"sec-edgar","filing":"0001567619-23-003201","document":"doc1.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1171486/000156761923003201/doc1.xml","form_type":"4"}},{"id":2011418,"issuer":{"id":8880,"kind":"organization","name":"NATURAL RESOURCE PARTNERS LP"},"owners":[{"id":43583,"kind":"person","name":"Craig Kevin J","position":1,"cik":"0001322654","reported_name":"Craig Kevin J","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Executive Vice President"}}],"security":"Phantom Units","published_at":"2023-02-16T22:23:06.000Z","date":"2023-02-15","kind":"exercise","acquired":true,"shares":3704,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F2","text":"Phantom units representing the right to receive common units on a one-for-one basis, together with tandem distribution equivalent rights, were awarded in February 2020 under the issuer's LTIP.   One-third of the phantom units vested on the third anniversary of the grant date and converted into common units on the reporting date.  Accrued quarterly distributions made during the vesting period were paid in cash to the reporting person on the reporting date."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"Phantom units representing the right to receive common units on a one-for-one basis, together with tandem distribution equivalent rights, were awarded in February 2020 under the issuer's LTIP.   One-third of the phantom units vested on the third anniversary of the grant date and converted into common units on the reporting date.  Accrued quarterly distributions made during the vesting period were paid in cash to the reporting person on the reporting date."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F2","text":"Phantom units representing the right to receive common units on a one-for-one basis, together with tandem distribution equivalent rights, were awarded in February 2020 under the issuer's LTIP.   One-third of the phantom units vested on the third anniversary of the grant date and converted into common units on the reporting date.  Accrued quarterly distributions made during the vesting period were paid in cash to the reporting person on the reporting date."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F2","text":"Phantom units representing the right to receive common units on a one-for-one basis, together with tandem distribution equivalent rights, were awarded in February 2020 under the issuer's LTIP.   One-third of the phantom units vested on the third anniversary of the grant date and converted into common units on the reporting date.  Accrued quarterly distributions made during the vesting period were paid in cash to the reporting person on the reporting date."}],"balance_after":0,"derivative":{"underlying":"Common Units","underlying_shares":3704},"source":{"system":"sec-edgar","filing":"0001567619-23-003201","document":"doc1.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1171486/000156761923003201/doc1.xml","form_type":"4"}},{"id":2011417,"issuer":{"id":8880,"kind":"organization","name":"NATURAL RESOURCE PARTNERS LP"},"owners":[{"id":43583,"kind":"person","name":"Craig Kevin J","position":1,"cik":"0001322654","reported_name":"Craig Kevin J","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Executive Vice President"}}],"security":"Common Units","published_at":"2023-02-16T22:23:06.000Z","date":"2023-02-15","kind":"tax_withholding","acquired":false,"shares":5000,"price":54.08,"value":270400.0,"ownership":{"direct":true},"balance_after":27104,"source":{"system":"sec-edgar","filing":"0001567619-23-003201","document":"doc1.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1171486/000156761923003201/doc1.xml","form_type":"4"}},{"id":2011416,"issuer":{"id":8880,"kind":"organization","name":"NATURAL RESOURCE PARTNERS LP"},"owners":[{"id":43583,"kind":"person","name":"Craig Kevin J","position":1,"cik":"0001322654","reported_name":"Craig Kevin J","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Executive Vice President"}}],"security":"Common Units","published_at":"2023-02-16T22:23:06.000Z","date":"2023-02-15","kind":"exercise","acquired":true,"shares":13602,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"Common units were issued upon conversion of phantom units previously awarded under the issuer's long-term incentive plan (\"LTIP\") as  further described in notes (2), (3) and (4) below."}],"balance_after":32104,"source":{"system":"sec-edgar","filing":"0001567619-23-003201","document":"doc1.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1171486/000156761923003201/doc1.xml","form_type":"4"}},{"id":2033569,"issuer":{"id":8880,"kind":"organization","name":"NATURAL RESOURCE PARTNERS LP"},"owners":[{"id":43583,"kind":"person","name":"Craig Kevin J","position":1,"cik":"0001322654","reported_name":"Craig Kevin J","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Executive Vice President"}}],"security":"Phantom Units","published_at":"2023-02-03T21:41:43.000Z","date":"2023-02-01","kind":"grant","acquired":true,"shares":12758,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"Represents phantom units awarded under the issuer's 2017 Long-Term Incentive Plan.  Each phantom unit represents the right to receive one common unit upon vesting and includes the right to receive tandem distribution equivalent rights, pursuant to which the quarterly distributions paid by the partnership on each unit will be accrued over the vesting period and paid in cash upon vesting."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F2","text":"The phantom units will vest in three substantially equal annual installments beginning on February 1, 2024."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F2","text":"The phantom units will vest in three substantially equal annual installments beginning on February 1, 2024."}],"balance_after":12758,"derivative":{"underlying":"Common Units","underlying_shares":12758},"source":{"system":"sec-edgar","filing":"0001567619-23-001831","document":"doc1.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1171486/000156761923001831/doc1.xml","form_type":"4"}},{"id":2372535,"issuer":{"id":8880,"kind":"organization","name":"NATURAL RESOURCE PARTNERS LP"},"owners":[{"id":43583,"kind":"person","name":"Craig Kevin J","position":1,"cik":"0001322654","reported_name":"Craig Kevin J","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Executive Vice President"}}],"security":"Phantom Units","published_at":"2022-02-25T21:16:03.000Z","date":"2022-02-23","kind":"exercise","acquired":true,"shares":5470,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F4","text":"Phantom units representing the right to receive common units on a one-for-one basis, together with tandem distribution equivalent rights, were awarded in February 2021 under the issuer's LTIP.   One-third of the phantom units vested on the first anniversary of the grant date and converted into common units on the reporting date.  Accrued quarterly distributions made during the vesting period were paid in cash to the reporting person on the reporting date.  The remaining phantom units under the 2021 award will vest in substantially equal installments on the second and third anniversaries of the grant date."},{"field":"price","element":"transactionPricePerShare","label":"F4","text":"Phantom units representing the right to receive common units on a one-for-one basis, together with tandem distribution equivalent rights, were awarded in February 2021 under the issuer's LTIP.   One-third of the phantom units vested on the first anniversary of the grant date and converted into common units on the reporting date.  Accrued quarterly distributions made during the vesting period were paid in cash to the reporting person on the reporting date.  The remaining phantom units under the 2021 award will vest in substantially equal installments on the second and third anniversaries of the grant date."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F4","text":"Phantom units representing the right to receive common units on a one-for-one basis, together with tandem distribution equivalent rights, were awarded in February 2021 under the issuer's LTIP.   One-third of the phantom units vested on the first anniversary of the grant date and converted into common units on the reporting date.  Accrued quarterly distributions made during the vesting period were paid in cash to the reporting person on the reporting date.  The remaining phantom units under the 2021 award will vest in substantially equal installments on the second and third anniversaries of the grant date."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F4","text":"Phantom units representing the right to receive common units on a one-for-one basis, together with tandem distribution equivalent rights, were awarded in February 2021 under the issuer's LTIP.   One-third of the phantom units vested on the first anniversary of the grant date and converted into common units on the reporting date.  Accrued quarterly distributions made during the vesting period were paid in cash to the reporting person on the reporting date.  The remaining phantom units under the 2021 award will vest in substantially equal installments on the second and third anniversaries of the grant date."}],"balance_after":10940,"derivative":{"underlying":"Common Units","underlying_shares":5470},"source":{"system":"sec-edgar","filing":"0001567619-22-005625","document":"doc1.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/1171486/000156761922005625/doc1.xml","form_type":"4"}},{"id":2372534,"issuer":{"id":8880,"kind":"organization","name":"NATURAL RESOURCE PARTNERS LP"},"owners":[{"id":43583,"kind":"person","name":"Craig Kevin J","position":1,"cik":"0001322654","reported_name":"Craig Kevin J","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Executive Vice President"}}],"security":"Phantom Units","published_at":"2022-02-25T21:16:03.000Z","date":"2022-02-23","kind":"exercise","acquired":true,"shares":3704,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F3","text":"Phantom units representing the right to receive common units on a one-for-one basis, together with tandem distribution equivalent rights, were awarded in February 2020 under the issuer's LTIP.   One-third of the phantom units vested on the second anniversary of the grant date and converted into common units on the reporting date.  Accrued quarterly distributions made during the vesting period were paid in cash to the reporting person on the reporting date.  The remaining phantom units under the 2020 award will vest on the third anniversary of the grant date."},{"field":"price","element":"transactionPricePerShare","label":"F3","text":"Phantom units representing the right to receive common units on a one-for-one basis, together with tandem distribution equivalent rights, were awarded in February 2020 under the issuer's LTIP.   One-third of the phantom units vested on the second anniversary of the grant date and converted into common units on the reporting date.  Accrued quarterly distributions made during the vesting period were paid in cash to the reporting person on the reporting date.  The remaining phantom units under the 2020 award will vest on the third anniversary of the grant date."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F3","text":"Phantom units representing the right to receive common units on a one-for-one basis, together with tandem distribution equivalent rights, were awarded in February 2020 under the issuer's LTIP.   One-third of the phantom units vested on the second anniversary of the grant date and converted into common units on the reporting date.  Accrued quarterly distributions made during the vesting period were paid in cash to the reporting person on the reporting date.  The remaining phantom units under the 2020 award will vest on the third anniversary of the grant date."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F3","text":"Phantom units representing the right to receive common units on a one-for-one basis, together with tandem distribution equivalent rights, were awarded in February 2020 under the issuer's LTIP.   One-third of the phantom units vested on the second anniversary of the grant date and converted into common units on the reporting date.  Accrued quarterly distributions made during the vesting period were paid in cash to the reporting person on the reporting date.  The remaining phantom units under the 2020 award will vest on the third anniversary of the grant date."}],"balance_after":3704,"derivative":{"underlying":"Common Units","underlying_shares":3704},"source":{"system":"sec-edgar","filing":"0001567619-22-005625","document":"doc1.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1171486/000156761922005625/doc1.xml","form_type":"4"}},{"id":2372533,"issuer":{"id":8880,"kind":"organization","name":"NATURAL RESOURCE PARTNERS LP"},"owners":[{"id":43583,"kind":"person","name":"Craig Kevin J","position":1,"cik":"0001322654","reported_name":"Craig Kevin J","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Executive Vice President"}}],"security":"Phantom Units","published_at":"2022-02-25T21:16:03.000Z","date":"2022-02-23","kind":"exercise","acquired":true,"shares":10486,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F2","text":"Phantom units representing the right to receive common units on a one-for-one basis, together with tandem distribution equivalent rights, were awarded in February 2019 under the issuer's LTIP.   Phantom units vested on the third anniversary of the grant date and converted into common units on the reporting date.  Accrued quarterly distributions made during the vesting period were paid in cash to the reporting person on the reporting date."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"Phantom units representing the right to receive common units on a one-for-one basis, together with tandem distribution equivalent rights, were awarded in February 2019 under the issuer's LTIP.   Phantom units vested on the third anniversary of the grant date and converted into common units on the reporting date.  Accrued quarterly distributions made during the vesting period were paid in cash to the reporting person on the reporting date."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F2","text":"Phantom units representing the right to receive common units on a one-for-one basis, together with tandem distribution equivalent rights, were awarded in February 2019 under the issuer's LTIP.   Phantom units vested on the third anniversary of the grant date and converted into common units on the reporting date.  Accrued quarterly distributions made during the vesting period were paid in cash to the reporting person on the reporting date."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F2","text":"Phantom units representing the right to receive common units on a one-for-one basis, together with tandem distribution equivalent rights, were awarded in February 2019 under the issuer's LTIP.   Phantom units vested on the third anniversary of the grant date and converted into common units on the reporting date.  Accrued quarterly distributions made during the vesting period were paid in cash to the reporting person on the reporting date."}],"balance_after":0,"derivative":{"underlying":"Common Units","underlying_shares":10486},"source":{"system":"sec-edgar","filing":"0001567619-22-005625","document":"doc1.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1171486/000156761922005625/doc1.xml","form_type":"4"}},{"id":2372532,"issuer":{"id":8880,"kind":"organization","name":"NATURAL RESOURCE PARTNERS LP"},"owners":[{"id":43583,"kind":"person","name":"Craig Kevin J","position":1,"cik":"0001322654","reported_name":"Craig Kevin J","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Executive Vice President"}}],"security":"Common Units","published_at":"2022-02-25T21:16:03.000Z","date":"2022-02-23","kind":"tax_withholding","acquired":false,"shares":7598,"price":35.62,"value":270640.76,"ownership":{"direct":true},"balance_after":18502,"source":{"system":"sec-edgar","filing":"0001567619-22-005625","document":"doc1.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1171486/000156761922005625/doc1.xml","form_type":"4"}},{"id":2372531,"issuer":{"id":8880,"kind":"organization","name":"NATURAL RESOURCE PARTNERS LP"},"owners":[{"id":43583,"kind":"person","name":"Craig Kevin J","position":1,"cik":"0001322654","reported_name":"Craig Kevin J","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Executive Vice President"}}],"security":"Common Units","published_at":"2022-02-25T21:16:03.000Z","date":"2022-02-23","kind":"exercise","acquired":true,"shares":19660,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"Common units were issued upon conversion of phantom units previously awarded under the issuer's long-term incentive plan (\"LTIP\") as  further described in notes (2), (3) and (4) below."}],"balance_after":26100,"source":{"system":"sec-edgar","filing":"0001567619-22-005625","document":"doc1.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1171486/000156761922005625/doc1.xml","form_type":"4"}},{"id":2388950,"issuer":{"id":8880,"kind":"organization","name":"NATURAL RESOURCE PARTNERS LP"},"owners":[{"id":43583,"kind":"person","name":"Craig Kevin J","position":1,"cik":"0001322654","reported_name":"Craig Kevin J","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Executive Vice President"}}],"security":"Phantom Units","published_at":"2022-02-17T23:01:31.000Z","date":"2022-02-09","kind":"grant","acquired":true,"shares":13286,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"security","element":"securityTitle","label":"F1","text":"Represents phantom units awarded under the issuer's 2017 Long-Term Incentive Plan.  Each phantom unit represents the right to receive one common unit upon vesting and includes the right to receive tandem distribution equivalent rights, pursuant to which the quarterly distributions paid by the partnership on each unit will be accrued over the vesting period and paid in cash upon vesting."},{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"Represents phantom units awarded under the issuer's 2017 Long-Term Incentive Plan.  Each phantom unit represents the right to receive one common unit upon vesting and includes the right to receive tandem distribution equivalent rights, pursuant to which the quarterly distributions paid by the partnership on each unit will be accrued over the vesting period and paid in cash upon vesting."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F2","text":"The phantom units will vest in three substantially equal annual installments beginning on February 9, 2023."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F2","text":"The phantom units will vest in three substantially equal annual installments beginning on February 9, 2023."}],"balance_after":13286,"derivative":{"underlying":"Common Units","underlying_shares":13286},"source":{"system":"sec-edgar","filing":"0001567619-22-004976","document":"doc1.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1171486/000156761922004976/doc1.xml","form_type":"4"}},{"id":2821116,"issuer":{"id":8880,"kind":"organization","name":"NATURAL RESOURCE PARTNERS LP"},"owners":[{"id":43583,"kind":"person","name":"Craig Kevin J","position":1,"cik":"0001322654","reported_name":"Craig Kevin J","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Executive Vice President"}}],"security":"Phantom Units","published_at":"2021-03-02T21:35:37.000Z","date":"2021-03-01","kind":"exercise","acquired":true,"shares":3704,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F3","text":"Phantom units representing the right to receive common units on a one-for-one basis, together with tandem distribution equivalent rights, were awarded in February 2020 under the issuer's LTIP.   One-third of the phantom units vested on the first anniversary of the grant date and converted into common units on the reporting date.  Accrued quarterly distributions made during the vesting period were paid in cash to the reporting person on the reporting date.  The remaining phantom units under the 2020 award will vest in substantially equal installments on the second and third anniversaries of the grant date."},{"field":"price","element":"transactionPricePerShare","label":"F3","text":"Phantom units representing the right to receive common units on a one-for-one basis, together with tandem distribution equivalent rights, were awarded in February 2020 under the issuer's LTIP.   One-third of the phantom units vested on the first anniversary of the grant date and converted into common units on the reporting date.  Accrued quarterly distributions made during the vesting period were paid in cash to the reporting person on the reporting date.  The remaining phantom units under the 2020 award will vest in substantially equal installments on the second and third anniversaries of the grant date."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F3","text":"Phantom units representing the right to receive common units on a one-for-one basis, together with tandem distribution equivalent rights, were awarded in February 2020 under the issuer's LTIP.   One-third of the phantom units vested on the first anniversary of the grant date and converted into common units on the reporting date.  Accrued quarterly distributions made during the vesting period were paid in cash to the reporting person on the reporting date.  The remaining phantom units under the 2020 award will vest in substantially equal installments on the second and third anniversaries of the grant date."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F3","text":"Phantom units representing the right to receive common units on a one-for-one basis, together with tandem distribution equivalent rights, were awarded in February 2020 under the issuer's LTIP.   One-third of the phantom units vested on the first anniversary of the grant date and converted into common units on the reporting date.  Accrued quarterly distributions made during the vesting period were paid in cash to the reporting person on the reporting date.  The remaining phantom units under the 2020 award will vest in substantially equal installments on the second and third anniversaries of the grant date."}],"balance_after":7408,"derivative":{"underlying":"Common Units","underlying_shares":3704},"source":{"system":"sec-edgar","filing":"0001567619-21-005378","document":"doc1.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1171486/000156761921005378/doc1.xml","form_type":"4"}},{"id":2821115,"issuer":{"id":8880,"kind":"organization","name":"NATURAL RESOURCE PARTNERS LP"},"owners":[{"id":43583,"kind":"person","name":"Craig Kevin J","position":1,"cik":"0001322654","reported_name":"Craig Kevin J","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Executive Vice President"}}],"security":"Phantom Units","published_at":"2021-03-02T21:35:37.000Z","date":"2021-03-01","kind":"exercise","acquired":true,"shares":4990,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F2","text":"Phantom units representing the right to receive common units on a one-for-one basis, together with tandem distribution equivalent rights, were awarded in February 2018 under the issuer's LTIP.   Phantom units vested on the third anniversary of the grant date and converted into common units on the reporting date.  Accrued quarterly distributions made during the vesting period were paid in cash to the reporting person on the reporting date."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"Phantom units representing the right to receive common units on a one-for-one basis, together with tandem distribution equivalent rights, were awarded in February 2018 under the issuer's LTIP.   Phantom units vested on the third anniversary of the grant date and converted into common units on the reporting date.  Accrued quarterly distributions made during the vesting period were paid in cash to the reporting person on the reporting date."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F2","text":"Phantom units representing the right to receive common units on a one-for-one basis, together with tandem distribution equivalent rights, were awarded in February 2018 under the issuer's LTIP.   Phantom units vested on the third anniversary of the grant date and converted into common units on the reporting date.  Accrued quarterly distributions made during the vesting period were paid in cash to the reporting person on the reporting date."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F2","text":"Phantom units representing the right to receive common units on a one-for-one basis, together with tandem distribution equivalent rights, were awarded in February 2018 under the issuer's LTIP.   Phantom units vested on the third anniversary of the grant date and converted into common units on the reporting date.  Accrued quarterly distributions made during the vesting period were paid in cash to the reporting person on the reporting date."}],"balance_after":0,"derivative":{"underlying":"Common Units","underlying_shares":4990},"source":{"system":"sec-edgar","filing":"0001567619-21-005378","document":"doc1.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1171486/000156761921005378/doc1.xml","form_type":"4"}},{"id":2821114,"issuer":{"id":8880,"kind":"organization","name":"NATURAL RESOURCE PARTNERS LP"},"owners":[{"id":43583,"kind":"person","name":"Craig Kevin J","position":1,"cik":"0001322654","reported_name":"Craig Kevin J","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Executive Vice President"}}],"security":"Common Units","published_at":"2021-03-02T21:35:37.000Z","date":"2021-03-01","kind":"tax_withholding","acquired":false,"shares":3204,"price":17.63,"value":56486.52,"ownership":{"direct":true},"balance_after":6440,"source":{"system":"sec-edgar","filing":"0001567619-21-005378","document":"doc1.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1171486/000156761921005378/doc1.xml","form_type":"4"}},{"id":2821113,"issuer":{"id":8880,"kind":"organization","name":"NATURAL RESOURCE PARTNERS LP"},"owners":[{"id":43583,"kind":"person","name":"Craig Kevin J","position":1,"cik":"0001322654","reported_name":"Craig Kevin J","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Executive Vice President"}}],"security":"Common Units","published_at":"2021-03-02T21:35:37.000Z","date":"2021-03-01","kind":"exercise","acquired":true,"shares":8694,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"Common units were issued upon conversion of phantom units previously awarded under the issuer's long-term incentive plan (\"LTIP\") as  further described in notes (2) and (3) below."}],"balance_after":9644,"source":{"system":"sec-edgar","filing":"0001567619-21-005378","document":"doc1.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1171486/000156761921005378/doc1.xml","form_type":"4"}},{"id":2863884,"issuer":{"id":8880,"kind":"organization","name":"NATURAL RESOURCE PARTNERS LP"},"owners":[{"id":43583,"kind":"person","name":"Craig Kevin J","position":1,"cik":"0001322654","reported_name":"Craig Kevin J","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Exec. Vice President - Coal"}}],"security":"Phantom Units","published_at":"2021-02-12T22:24:02.000Z","date":"2021-02-11","kind":"grant","acquired":true,"shares":16410,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"security","element":"securityTitle","label":"F1","text":"Represents phantom units awarded under the issuer's 2017 Long-Term Incentive Plan.  Each phantom unit represents the right to receive one common unit upon vesting and includes the right to receive tandem distribution equivalent rights, pursuant to which the quarterly distributions paid by the partnership on each unit will be accrued over the vesting period and paid in cash upon vesting."},{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"Represents phantom units awarded under the issuer's 2017 Long-Term Incentive Plan.  Each phantom unit represents the right to receive one common unit upon vesting and includes the right to receive tandem distribution equivalent rights, pursuant to which the quarterly distributions paid by the partnership on each unit will be accrued over the vesting period and paid in cash upon vesting."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F2","text":"The phantom units will vest in three substantially equal annual installments beginning on February 11, 2022."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F2","text":"The phantom units will vest in three substantially equal annual installments beginning on February 11, 2022."}],"balance_after":16410,"derivative":{"underlying":"Common Units","underlying_shares":16410},"source":{"system":"sec-edgar","filing":"0001567619-21-003613","document":"doc1.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1171486/000156761921003613/doc1.xml","form_type":"4"}},{"id":3270997,"issuer":{"id":8880,"kind":"organization","name":"NATURAL RESOURCE PARTNERS LP"},"owners":[{"id":43583,"kind":"person","name":"Craig Kevin J","position":1,"cik":"0001322654","reported_name":"Craig Kevin J","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"EVP - Coal"}}],"security":"Phantom Untis","published_at":"2020-02-14T21:07:23.000Z","date":"2020-02-13","kind":"grant","acquired":true,"shares":11112,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"security","element":"securityTitle","label":"F1","text":"Represents phantom units awarded under the issuer's 2017 Long-Term Incentive Plan.  Each phantom unit represents the right to receive one common unit upon vesting and includes the right to receive tandem distribution equivalent rights, pursuant to which the quarterly distributions paid by the partnership on each unit will be accrued over the vesting period and paid in cash upon vesting."},{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"Represents phantom units awarded under the issuer's 2017 Long-Term Incentive Plan.  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