SecProbe.io

CORRESP
1
filename1.htm

corresp

NATURAL RESOURCE PARTNERS L.P.

601 JEFFERSON STREET, SUITE 3600

HOUSTON, TEXAS 77002

December 22, 2010

Ethan Horowitz

Division of Corporation Finance

United States Securities and Exchange Commission

100 F Street, N.E.

Washington, D.C. 20549

    Re:

     Natural Resource Partners L.P.

Form 10-K/A for Fiscal Year Ended December 31, 2009

Filed March 3, 2010

Form 10-Q for Fiscal Quarter Ended September 30, 2010

Filed November 5, 2010

File No. 001-31465

Dear Mr. Horowitz:

On behalf of Natural Resource Partners L.P. (the “Partnership”), set forth below are the
Partnership’s responses to the comments contained in the letter from the staff of the Division of
Corporation Finance (the “Staff”) of the Securities and Exchange Commission dated December
10, 2010, with respect to the above captioned filing. For your convenience, the exact text of the
comment provided by the Staff has been included in bold face type. The Partnership’s response to
the comment is set forth immediately below the text of the comment.

Form 10-Q for Fiscal Quarter Ended September 30, 2010

Financial Statements

Notes to Consolidated Financial Statements

2. Significant Accounting Policies Update

Intangible Assets. Page 7

    1.

    We note your disclosure of the change in method of amortization for your intangible assets to
use the greater of straight-line over the remaining useful life or the unit-of-production
method. It appears that you have accounted for this change in amortization method as a change
in accounting estimate under FASB ASC 250-10-45-18. A change in accounting estimate is
defined by the FASB as resulting from the receipt of new information. Please describe the new
information management became aware of that resulted in this change in amortization methods.
In addition, please support your statement that the change “more accurately reflects the
future benefits of the assets.” Your response should also address why the new method is based
on the

Securities and Exchange Commission

December 22, 2010

Page 2

    greater of the use of the straight-line method or unit-of-production method rather than the
use of a single method of amortization.

Response:

Upon receipt of the Staff’s comments, we reviewed the Partnership’s disclosure of the amortization
of intangible assets and believe that we could have better described the rationale for refining our
existing accounting policies to deal with circumstances not contemplated at the time we established
our policy. By way of background, in connection with several acquisitions, we identified and
recorded certain contract-based intangibles as above-market contracts on our financial statements
because the contractual transportation rates were deemed to be in excess of market on the date we
acquired the underlying property. Our ability to deliver services under the transportation
contracts is dependent upon fixed assets owned by the Partnership that are being depreciated on a
straight line basis. The values of these intangibles were determined by an independent valuation
company based upon the present value of cash flows generated by projected mining and related
transportation activity and had been amortized based on actual units of production for the period
as it relates to total estimated tons transported throughout the contract life. Historically,
under normal economic conditions, this amortization method has effectively matched amortization
with the related revenue and costs for both the tangible and intangible assets. However, in April
2010 we were notified by a lessee that it was temporarily idling one of its mines but planned to
continue development work in other areas of the mine. The lessee also informed us that it
intended to resume production in the future, but an exact date was not known. The idling was
disclosed in the Subsequent Events footnote of our first quarter 2010 10-Q, and updated through
discussion in the MD&A section of our second and third quarter 2010 10-Qs under Current Results.
Combined with the slowdown in the economy over the last year, the idling of the mine caused us to
recognize that in some cases the initial production estimates were not being met and raised the
possibility that total projected production would not be met during the term of the contract
related to the intangible asset.

As production from the underlying mine ceased, the Partnership considered whether amortization
should be suspended for the related intangible. In considering ASC 350-30-35-6, we noted the
presumption that finite lived intangible assets would be amortized and that absent a pattern of
economic benefits, straight-line amortization should be used. Consequently, we concluded that it
would not be prudent to cease amortizing the intangible asset and that in periods where uncertainty
in cash flows exist, a minimum amortization should be recorded and that minimum amortization should
be based on amortization that would have been recorded under the straight-line method. We believe
this refinement links the amortization of the intangible asset more closely with the underlying
tangible assets that are required to service the contract. The underlying tangible assets are
amortized on a straight-line basis over their estimated useful life, which is identical to the
contract life. Since the contracts that support the contract-based intangibles have finite lives,
we concluded that the related contract-based intangibles are expiring due to the passage of time as
well as the level of production, and that a decline in value should be systematically recognized.
As such, we concluded that refining our units-of-

Securities and Exchange Commission

December 22, 2010

Page 3

production policy to require a minimum amortization would best reflect the expiration of the
intangible asset over its useful life and would more accurately reflect the future costs and
benefits of the assets

We intend to supplement our disclosure in future filings to better explain the rationale for
refining our amortization policy as follows:

Intangible Assets

     The Partnership’s intangible assets consist of above-market contracts. Intangible assets are
identified related to contracts acquired when compared to the estimate of current market rates for
similar contracts. The estimated fair value of the above-market rate contracts are determined based
on the present value of future cash flow projections related to the underlying assets acquired.
Intangible assets are amortized on a unit-of-production basis. In April 2010, the Partnership was
notified by a lessee that its production would be temporarily idled but that the lessee would
continue its development work in other areas of the mine. As a result of these circumstances, the
Partnership refined its accounting policy to reflect a minimum amortization to be applied in each
period. For the year ended December 31, 2010, the Partnership recorded amortization expense of $X.X
million, or approximately $X.XX per unit, that relates to the minimum amortization.

     In connection with responding to the Staff’s comments the Partnership acknowledges that (i)
the Partnership is responsible for the adequacy and accuracy of the disclosure in the filing, (ii)
Staff comments or changes to disclosure in response to Staff comments do not foreclose the
Commission from taking any action with respect to the filing, and (iii) the Partnership may not
assert Staff comments as a defense in any proceeding initiated by the Commission or any person
under the federal securities laws of the United States.

Securities and Exchange Commission

December 22, 2010

Page 4

Please direct any questions that you have with respect to the foregoing to Dwight Dunlap at
713-751-7514. Also, Mr. Dunlap’s facsimile number has changed. Please send any future facsimile
correspondence to Mr. Dunlap at 281-657-8014.

    Very truly yours,

NATURAL RESOURCE PARTNERS L.P.

By: NRP (GP) LP, its general partner

    By:
    GP NATURAL RESOURCE

    PARTNERS LLC, its general partner

    By:
                       /s/ Dwight L. Dunlap

    Name:
    Dwight L. Dunlap

    Title:
    Chief Financial Officer and Treasurer

    cc:

     Shannon Buskirk (Commission)

Wyatt Hogan (Partnership)