Exhibit 99.1

Non-GAAP Financial Measures

NuStar Energy L.P. utilizes two financial measures, EBITDA from continuing operations and distributable cash flow from continuing operations, neither of which is defined in U.S. generally accepted accounting principles (“GAAP”).  Management uses these financial measures because they are widely accepted financial indicators used by investors to compare partnership performance.  In addition, management believes that these measures provide investors an enhanced perspective of the operating performance of the partnership’s assets and the cash that the business is generating.  Neither EBITDA from continuing operations nor distributable cash flow from continuing operations are intended to represent cash flows for the period, nor are they presented as an alternative to net income from continuing operations.  They should not be considered in isolation or as substitutes for a measure of performance prepared in accordance with GAAP.

The following is a reconciliation of NuStar Energy’s income (loss) from continuing operations to EBITDA from continuing operations:

(1) 2012 asset and goodwill impairment loss of $266 million related to asphalt operations.

The following is a reconciliation of NuStar Energy’s income (loss) from continuing operations to EBITDA from continuing operations and distributable cash flow from continuing operations:

(a)         Other non-cash items for 2013 relate to the reduction of the contingent consideration recorded in association with the December 2012 crude oil asset acquisition from TexStar Midstream Services, LP and certain of its affiliates.  The amount for 2012 primarily consists of $271.8 million of long-lived asset impairment charges mainly related to our asphalt operations, including fixed assets, goodwill and intangible assets.  The 2012 impairment charges were partially offset by an $18.7 million gain, net of tax, resulting from a legal settlement.

(b)         Distributable cash flow from continuing operations excludes the impact of unrealized mark-to-market gains and lossesthat arise from valuing certain derivative contracts, as well as the associated hedged inventory.  The gain or loss associated with these contracts is realized in distributable cash flow from continuing operations when the contracts are settled.

EBITDA in the following reconciliations relate to our business segments.  For purposes of segment reporting we do not allocate general and administrative expenses to our reported business segments because those expenses relate primarily to the overall management at the entity level.  Therefore, EBITDA reflected in the following reconciliations exclude any allocation of general and administrative expenses consistent with our policy for determining segmental operating income, the most directly comparable GAAP measure.

The following table reconciles operating income (loss) to EBITDA for our Fuels Marketing Segment, removing the historical financial information for our asphalt operations from the segment results:

The following is a reconciliation of operating income to EBITDA for the Storage Segment:

The following is a reconciliation of operating income to EBITDA for the Pipeline Segment: