American Midstream Reports First Quarter 2018 Results

American Midstream Reports First Quarter 2018 Results

HOUSTON, May 15, 2018 /PRNewswire/ -- American Midstream Partners, LP (NYSE: AMID) ("American Midstream" or the "Partnership") today reported financial results for the three months ended March 31, 2018.

In the first quarter of 2018, American Midstream produced strong results, driven by meaningful growth across its core segments. The Partnership continues to focus on simplifying the business while providing a platform to participate in future growth projects across the midstream value chain.

Highlights

Financial

    --  Net loss attributable to the Partnership was $13.9 million for the three
        months ended March 31, 2018 as compared to net loss of $30.2 million for
        the same period in 2017.
    --  Adjusted EBITDA of $52.4 million for the three months ended March 31,
        2018, an increase of 12% compared to the first quarter of 2017.
    --  Total segment gross margin was $64.0 million for the three months ended
        March 31, 2018, an increase of 5% compared to the first quarter of 2017.
    --  The Partnership maintained a quarterly distribution of $0.4125 per
        common unit, or $1.65 per common unit on an annualized basis,
        representing distribution coverage of approximately 1.0x.
    --  The first quarter 2018 distribution represents the Partnership's
        twenty-seventh consecutive quarterly distribution since its initial
        public offering.

Operational

    --  Record throughput of over 835 MMcf/d drove 75% gross margin growth
        across the Partnership's natural gas transmission assets compared to the
        first quarter of 2017, supported by record demand and the acquisition of
        Trans-Union, further solidifying the Partnership's core Southeast
        transmission asset footprint.
    --  Increased activity in the deepwater Gulf of Mexico drove a 10% increase
        in throughput volumes on the Okeanos pipeline.
    --  Continued increases in producer activity and operational efficiencies
        contributed to 12% gross margin growth across the gathering and
        processing segment compared to the first quarter of 2017.
    --  Commenced deliveries on the Cayenne pipeline, which coupled with
        increased producer activity drove 10% gross margin growth across the
        liquids pipeline segment compared to the first quarter of 2017.
    --  Successfully completed the extension of the Silver Dollar pipeline,
        providing the ability to add 10,000 Bbl/d of new throughput to the
        system.
    --  Continuing to organically grow American Midstream through systematic
        capital redeployment to facilitate additional cash flow.

EXECUTIVE COMMENTARY

"We had a tremendous first quarter, with strong Adjusted EBITDA and meaningful gross margin growth across our core operating segments, which will provide positive momentum as we progress through 2018. We continue to witness significant increases in producer activity across our systems and combined with the Southcross assets, have identified numerous commercial opportunities that we expect to further drive both volume and EBITDA growth in 2018 and 2019. Positive drilling trends in our key Eagle Ford and Permian Basins translates directly into growth for our demand driven position along the Gulf Coast and specifically Corpus Christi. We remain focused on prudently growing the business by redeploying capital and aligning assets that connect supply with demand, allowing us to focus on developing higher return projects that will create additional scale along the Gulf Coast," stated Lynn Bordon III, President and Chief Executive Officer.

SEGMENT PERFORMANCE


                                   Segment Gross Margin

                                      (In thousands)


                               Three months ended March 31,

                               2018                        2017
                               ----                        ----


    Offshore Pipelines and
     Services                          $25,316                    $25,802

    Gas Gathering and
     Processing Services     12,652                        11,251

    Liquid Pipelines and
     Services                 7,271                         6,634

    Natural Gas
     Transportation Services 10,688                         6,119

    Terminalling Services     8,053                        11,160
                              -----                        ------

         Total (1)                     $63,980                    $60,966
                                       -------                    -------


    (1) Non-GAAP supplemental
     financial measure.  Please read
     "Note About Non-GAAP Financial
     Measures" in Appendix A.

Offshore Pipelines and Services

Segment gross margin was $25.3 million for the three months ended March 31, 2018, a decrease of 2% compared to the same period in 2017. Quarterly cash distributions were $21.6 million for the three months ended March 31, 2018, a 6% increase compared to the same period in 2017 primarily related to additional equity ownership interests in Delta House to 35.7% and Destin to 66.7%. The Partnership also benefited from the acquisition and consolidation of Main Pass Oil Gathering and Panther Operating in the third quarter of 2017.

In the fourth quarter of 2017, the Partnership was notified by the operator of the Delta House FPS that certain third-party owned upstream infrastructure would require remedial work, resulting in a temporary delay of production volumes flowing into Delta House. This work is progressing ahead of schedule and is expected to be completed in the coming weeks, at which time full production is anticipated to resume flowing into Delta House. To offset the impact to cash distributions from Delta House resulting from the delay in volumes, the Partnership and an affiliate of ArcLight entered into an agreement providing for the contribution of additional capital to the Partnership. For the first quarter of 2018, the Partnership received a $9.4 million contribution to offset the reduced Delta House distributions.

Once full production resumes, along with four new well tie backs planned for connection to Delta House in the second half of 2018, the Partnership anticipates Delta House to run near nameplate capacity into 2019 and beyond.

Gas Gathering and Processing Services

Segment gross margin was $12.7 million for the three months ended March 31, 2018, an increase of 12% compared to the same period in 2017. The increase reflected additional NGL volumes and higher prices on the Partnership's East Texas and Permian Basin assets, continued increase in producer development activity and improved operational efficiencies across the segment. In the first quarter the Partnership's anchor producer in the Eagle Ford brought on line 13 new wells, with plans to bring on line an additional 40-45 wells in the remainder of 2018, which is expected to drive volume growth by 125% over 2017. The Partnership anticipates further growth across its entire Gas Gathering and Processing Services segment throughout 2018 as producer activity is forecast to continue increasing, primarily in the Permian and Eagle Ford Basins.

Liquid Pipelines and Services

Segment gross margin was $7.3 million for the three months ended March 31, 2018, an increase of 10% as compared to the same period in 2017. Quarterly cash distributions were $2.2 million, a 67% increase compared to the same period in 2017. The increase was driven by increased distribution from the Partnership's Tri-States and Wilprise equity investments, along with slightly higher volumes on these assets. The Partnership's interest in the Cayenne pipeline, which commenced operation in January of 2018, will provide additional growth for this segment in 2018 and beyond. Producer activity continues to increase around the Partnership's Permian Basin and Bakken assets and the Partnership is currently evaluating organic growth projects which would add incremental volumes across these assets.

Natural Gas Transportation Services

Segment gross margin was $10.7 million for the three months ended March 31, 2018, a 75% increase compared to the same period in 2017. The increase was primarily attributable to the acquisition of Trans-Union pipeline in November 2017 that further strengthened the Partnership's growing Southeast gas transmission assets. First quarter throughput volumes grew 115% to set a record, surpassing 835 MMcf/d, supported by the acquisition of Trans-Union, continued strong industrial and residential demand within the rapidly growing Southeast markets as well as significantly colder weather driving regional demand.

Terminalling Services

Segment gross margin was $8.1 million for the three months ended March 31, 2018, a decrease of 28% compared to the same period in 2017. The decrease in gross margin was primarily attributable to reduced market rates for storage and utilization at the Partnership's Cushing terminal, as well as required tank inspections. This decline was partially offset by an increase in throughput revenue at the Partnership's refined products terminals as a result of facility enhancements.

CAPITAL MANAGEMENT

As of March 31, 2018, the Partnership had approximately $1.2 billion of total debt outstanding, comprising of $713 million outstanding under its revolving credit facility, $418 million outstanding under its 8.50% senior unsecured notes and $85 million outstanding in non-recourse senior secured notes. The Partnership had a consolidated total leverage ratio of approximately 5.2 times at March 31, 2018. The Partnership is focused on long-term deleveraging by prudently managing the balance sheet through the evaluation of additional non-core asset sales. The Partnership expects to deploy proceeds from these asset sales towards accretive capital projects.

To mitigate the potential negative impact of rising interest rates and promote more predictable and stable cash flow, the Partnership has a series of interest rate swap agreements for approximately $550 million at an average rate of LIBOR plus 130 basis points extending through 2022.

For the three months ended March 31, 2018, capital expenditures totaled approximately $25.9 million, including approximately $4.5 million of maintenance capital expenditures.

CONFERENCE CALL INFORMATION

The Partnership will host a conference call at 10:00 AM Eastern Time on Tuesday, May 15, 2018 to discuss these results. The call will be webcast and archived on the Partnership's website for a limited time.


    Date:            Tuesday, May 15, 2018

    Time:            10:00 AM ET / 9:00 AM CT

    Dial-In Numbers: (888) 317-6003 (Domestic toll-free)

                     (412) 317-6061 (International)


    Conference ID:                                                9574074


    Webcast URL:     www.AmericanMidstream.com/investor-relations

Non-GAAP Financial Measures

This press release and the accompanying tables include supplemental non-GAAP financial measures, including "Adjusted EBITDA," "Total Segment Gross Margin," "Operating Margin," and "Distributable Cash Flow." For definitions and required reconciliations of supplemental non-GAAP financial measures to the nearest comparable GAAP financial measures, please read a "Note About Non-GAAP Financial Measures" set forth in a later section of this press release.

About American Midstream Partners, LP

American Midstream Partners, LP is a growth-oriented limited partnership formed to provide critical midstream infrastructure that links producers of natural gas, crude oil, NGLs, condensate and specialty chemicals to end-use markets. American Midstream's assets are strategically located in some of the most prolific offshore and onshore basins in the Permian, Eagle Ford, East Texas, Bakken and Gulf Coast. American Midstream owns or has an ownership interest in approximately 5,100 miles of interstate and intrastate pipelines, as well as ownership in gas processing plants, fractionation facilities, an offshore semisubmersible floating production system with nameplate processing capacity of 90 MBbl/d of crude oil and 220 MMcf/d of natural gas; and terminal sites with approximately 6.7 MMBbls of storage capacity.

For more information about American Midstream Partners, LP, visit: www.americanmidstream.com. The content of our website is not part of this release.

Forward-Looking Statements

This press release includes "forward-looking statements" within the meaning of the Private Securities Litigation Reform Act of 1995, Section 27A of the Securities Act and Section 21E of the Securities Exchange Act of 1934, as amended, including statements related to the Partnership's expectations regarding the timing of the proposed offering and use of proceeds. We have used the words "could," "expect," "intend," "may," "will," "poised," "potential," "promote," "would" and similar terms and phrases to identify forward-looking statements in this press release. Although we believe the assumptions upon which these forward-looking statements are based are reasonable, any of these assumptions could prove to be inaccurate and the forward-looking statements based on these assumptions could be incorrect. Many of the factors that will determine these results are beyond our ability to control or predict. These factors include the risk factors described in Part I, Item 1A. in our Annual Report on Form 10-K for the year ended December 31, 2017, filed with the SEC on April 9, 2018, and our other filings with the SEC. All future written and oral forward-looking statements attributable to us or persons acting on our behalf are expressly qualified in their entirety by the previous statements. The forward-looking statements herein speak as of the date of this press release. We undertake no obligation to update such statements for any reason, except as required by law.

The preliminary financial results for the Partnership's first quarter ended March 31, 2018 included in this press release represent the most current information available to management. The Partnership's actual results when disclosed in our Quarterly Report on Form 10-Q for the quarter ended March 31, 2018 may differ from these preliminary results as a result of the completion of the Partnership's financial statement closing procedures, final adjustments, completion of the independent registered public accounting firm's review, and other developments that may arise between now and the disclosure of the final results and audited financials.

Investor Contact
American Midstream Partners, LP
Mark Schuck
Director of Investor Relations
(346) 241-3497
ir@americanmidstream.com


                                        American Midstream Partners, LP and Subsidiaries

                                              Condensed Consolidated Balance Sheets

                                                    (Unaudited, in thousands)


                                                               March 31,                 December 31,
                                                                    2018                           2017
                                                                    ----                           ----

    Assets


    Cash and cash equivalents                                                  $8,191                         $8,782

    Restricted cash                                               18,269                           20,352

    Accounts receivable, net of allowance
     for doubtful accounts of $312 and $225
     as of March 31, 2018 and December 31,
     2017, respectively                                           87,418                           98,132

    Inventory and other current assets                            30,060                           26,386

    Assets held for sale                                         129,247                                -
                                                                 -------

    Total current assets                                         273,185                          153,652

    Property, plant and equipment, net                         1,080,897                        1,095,585

    Restricted cash - long term                                    5,048                            5,045

    Other assets, net                                             25,249                           17,874

    Investment in unconsolidated affiliates                      339,271                          348,434

    Intangible and other assets, net                             141,627                          174,010

    Goodwill                                                      67,985                          128,866

    Total assets                                                           $1,933,262                     $1,923,466
                                                                           ==========                     ==========

    Liabilities, Equity and Partners' Capital

    Total current liabilities                                    164,128                          137,493

    Revolving credit facility                                    712,600                          697,900

    3.77% Senior notes (non-recourse)                             54,682                           55,198

    3.97% Senior notes (non-recourse)                             29,486                           29,937

    8.50% Senior notes                                           418,078                          418,421

    Asset retirement obligations                                  66,894                           66,194

    Other liabilities                                             15,542                            2,080

    Deferred tax liability                                         8,274                            8,123

    Total liabilities                                          1,469,684                        1,415,346

    Convertible preferred units                                  317,180                          317,180

    Equity and partners' capital                                 146,398                          190,940

    Total liabilities, equity and partners'
     capital                                                               $1,933,262                     $1,923,466
                                                                           ==========                     ==========


                                          American Midstream Partners, LP and Subsidiaries

                                          Condensed Consolidated Statements of Operations

                                       (Unaudited, in thousands, except for per unit amounts)


                                                                       Three Months ended March 31,

                                                                     2018                              2017
                                                                     ----                              ----


    Revenues                                                                 $205,829                           $164,078

    Operating expenses:

         Cost of sales                                            150,166                             115,468

         Direct operating expenses                                 23,446                              17,405

         Corporate expenses                                        22,692                              30,113

         Depreciation, amortization and accretion
          expense                                                  21,997                              25,570

    Gain on sale of assets, net                                      (95)                               (21)

    Total operating expenses                                      218,206                             188,535
                                                                  -------                             -------

    Operating Loss                                               (12,377)                           (24,457)

    Other income (expense):

         Interest expense                                        (13,876)                           (17,956)

    Other income (expense), net                                        22                                (37)

    Earnings in unconsolidated affiliates                          12,673                              15,402

    Loss from continuing operations before
     income taxes                                                (13,558)                           (27,048)

    Income tax expense                                              (280)                            (1,123)
                                                                     ----                              ------

    Loss from continuing operations                              (13,838)                           (28,171)

    Discontinued operations:

    Loss from discontinued operations, net
     of tax                                                             -                              (710)
                                                                      ---                               ----

    Net loss                                                     (13,838)                           (28,881)

    Net income attributable to
     noncontrolling interests                                          45                               1,303
                                                                      ---                               -----

    Net loss attributable to the Partnership                                $(13,883)                         $(30,184)
                                                                             ========                           ========


    Distribution declared per common unit                                     $0.4125                            $0.4125

    Basic and diluted:

    Loss from continuing operations                                           $(0.42)                           $(0.74)

    Income (loss) from discontinued
     operations                                                         -                             (0.01)
                                                                      ---                              -----

    Net loss                                                                  $(0.42)                           $(0.75)
                                                                               ======                             ======

    Weighted average number of common units
     outstanding

    Basic and diluted                                              52,769                              51,451


                                      American Midstream Partners, LP and Subsidiaries

                                      Condensed Consolidated Statements of Cash Flows

                                                 (Unaudited, in thousands)


                                                                Three Months ended March 31,

                                                               2018                    2017
                                                               ----                    ----


    Net cash provided by operating
     activities                                                        $14,847                           $8,847


    Net cash used in investing
     activities                                            (15,744)                           (12,928)


    Net cash used in financing
     activities                                             (1,774)                          (280,899)
                                                             ------                            --------


    Net decrease in Cash, Cash
     equivalents, and Restricted cash                       (2,671)                          (284,980)


    Cash, Cash equivalents and Restricted cash

    Beginning of period                                      34,179                             329,230
                                                             ------                             -------

    End of period                                                      $31,508                          $44,250
                                                                       =======                          =======


                                              American Midstream Partners, LP and Subsidiaries

                                   Reconciliation of Net income (loss) attributable to the Partnership to

                                                 Adjusted EBITDA and Distributable Cash Flow

                                                         (Unaudited, in thousands)


                                                                               Three Months ended March 31,

                                                                             2018                           2017
                                                                             ----                           ----

    Reconciliation of Net loss attributable to the
     Partnership to Adjusted EBITDA:

    Net loss attributable to the Partnership                                        $(13,883)                          $(30,184)

    Add backs and net impact of discontinued
     operations

    Depreciation, amortization and accretion                               21,997                           25,290

    Interest expense                                                       17,731                           14,925

    Debt issuance costs paid                                                1,085                            1,402

    Unrealized (gain) loss on derivatives, net                            (5,112)                             372

    Non-cash equity compensation expense                                    1,014                            4,038

    Transaction expenses                                                    8,877                            8,614

    Income tax expense                                                        280                            1,123

    Discontinued operations                                                     -                           4,489

    Distributions from unconsolidated affiliates                           23,853                           22,494

    General Partner contribution                                            9,417                            9,614

    Deductions

    Earnings in unconsolidated affiliates                                  12,673                           15,402

    Other                                                                     170                               49


    Adjusted EBITDA                                                                   $52,416                             $46,726
                                                                                      =======                             =======

    Deduct:

    Cash interest expense                                                  17,689                           14,898

    Maintenance capital                                                     4,502                            2,008

    Preferred distribution                                                  8,354                            6,707
                                                                            -----                            -----

    Distributable Cash Flow                                                           $21,871                             $23,113
                                                                                      =======                             =======


    Limited Partner Distributions                                                     $21,745                             $21,339


    Distribution Coverage                                                     1.0    x                         1.1 x
                                                                              ---    ---                       --- ---


                                      American Midstream Partners, LP and Subsidiaries

                      Reconciliation of Total Gross Margin to Net loss attributable to the Partnership

                                                  (Unaudited, in thousands)


                                                                Three Months ended March 31,
                                                                ----------------------------

                                                              2018                             2017
                                                              ----                             ----

    Reconciliation of Gross Margin to
     Net loss attributable to the
     Partnership

    Total Segment Gross Margin                                         $63,980                            $60,966

    Less:

    Direct operating expenses                               19,124                             14,332

    Add backs

    Gains on commodity derivatives,
     net                                                        60                                365

    Deducts

    Corporate expenses                                      22,692                             30,113

    Depreciation, amortization and
     accretion                                              21,997                             25,570

    Gain on sale of assets, net                               (95)                              (21)

    Interest expense                                        13,876                             17,956

    Other (income) expense                                    (22)                                37

    Other, net                                                  26                                392

    Income tax expense                                         280                              1,123

    Loss from discontinued
     operations, net of tax                                      -                               710

    Net income attributable to
     noncontrolling interest                                    45                              1,303
                                                               ---                              -----

    Net loss attributable to the
     Partnership                                                     $(13,883)                         $(30,184)
                                                                      ========                           ========


                                          American Midstream Partners, LP and Subsidiaries

                                                Segment Financial and Operating Data

                                  (Unaudited, in thousands, except for operating and pricing data)


                                                                         Three Months ended March 31,
                                                                         ----------------------------

                                                                       2018                     2017
                                                                       ----                     ----

    Segment Financial and Operating Data:


    Offshore Pipelines and Services Segment

    Financial data:

              Segment gross margin                                             $25,316                          $25,802

    Less:  Direct operating expenses                                  7,795                               2,579

                  Segment operating margin                           17,521                              23,223
                                                                     ------                              ------


    Distributions:

             Destin/Okeanos                                                    $15,113                           $9,925

             Delta House                                              6,524                              10,541
                                                                      -----                              ------

                  Total                                              21,637                              20,466
                                                                     ------                              ------


         Operating data:

              Average throughput (MMcf/d)                             274.0                               404.0

              Average Destin/Okeanos throughput (MMcf/
               d)                                                     982.8                             1,082.0

              Average Delta House throughput (MBoe/d)                  60.1                               107.0

              Average Other throughput (MBbls/d)                       24.0                                26.6


    Gas Gathering and Processing Services
     Segment

    Financial data:

    Segment gross margin                                                       $12,652                          $11,251

    Less:  Direct operating expenses                                  6,680                               8,065

                  Segment operating margin                            5,972                               3,186
                                                                      -----                               -----

    Operating data:

    Average throughput (MMcf/d)                                       160.5                               207.6


    Liquid Pipelines & Services

    Financial data:

             Segment gross margin                                               $7,271                           $6,634

    Less:  Direct operating expenses                                  2,976                               2,453

                  Segment operating margin                            4,295                               4,181
                                                                      -----                               -----


    Distributions:

             Tri-States/Wilprise                                                $2,217                           $1,328

             Operating data:

                 Average Tri-States/Wilprise throughput
                  (MBbls/d)                                            83.6                                80.8

                 Average Cayenne throughput (MBbls/d)                  20.4                                   -

                 Average Other Liquid Pipelines throughput
                  (MBbls/d)                                            35.1                                33.1





    Natural Gas Transportation Services
     Segment

    Financial data:

    Segment gross margin                                                       $10,688                           $6,119

    Less:  Direct operating expenses                                  1,673                               1,235
                                                                                                         -----

                  Segment operating margin                            9,015                               4,884
                                                                      -----                               -----

    Operating data:

    Average throughput (MMcf/d)                                       839.0                               390.0


    Terminalling Services Segment

    Financial data:

    Segment revenue                                                             $8,053                          $11,160

    Less:  Cost of sales                                              5,023                               4,393

               Direct operating expenses                              4,322                               3,073
                                                                      -----

                  Segment operating margin                          (1,292)                              3,694
                                                                     ------                               -----

    Operating data:

    Contracted Capacity (Bbls)                                    4,574,767                           5,299,667

    Design Capacity (Bbls)                                        5,400,800                           5,400,800

    Storage Utilization                                               84.7%                              98.1%

    Terminalling and storage throughput (Bbls/
     d)                                                              56,768                              56,279

Appendix A

Note About Non-GAAP Financial Measures

Total segment gross margin, operating margin and Adjusted EBITDA are performance measures that are non-GAAP financial measures. Each has important limitations as an analytical tool because they exclude some, but not all, items that affect the most directly comparable GAAP financial measures. Management compensates for the limitations of these non-GAAP measures as analytical tools by reviewing the comparable GAAP measures, understanding the differences between the measures and incorporating these data points into management's decision-making process.

You should not consider total segment gross margin, operating margin, or Adjusted EBITDA in isolation or as a substitute for, or more meaningful than analysis of, our results as reported under GAAP. Total segment gross margin, operating margin and Adjusted EBITDA may be defined differently by other companies in our industry. Our definitions of these non-GAAP financial measures may not be comparable to similarly titled measures of other companies, thereby diminishing their utility.

Adjusted EBITDA is a supplemental non-GAAP financial measure used by our management and external users of our financial statements, such as investors, commercial banks, research analysts and others, to assess: the financial performance of our assets without regard to financing methods, capital structure or historical cost basis; the ability of our assets to generate cash flow to make cash distributions to our unitholders and our General Partner; our operating performance and return on capital as compared to those of other companies in the midstream energy sector, without regard to financing or capital structure; and the attractiveness of capital projects and acquisitions and the overall rates of return on alternative investment opportunities.

We define Adjusted EBITDA as net income (loss) attributable to the Partnership, plus depreciation, amortization and accretion expense, interest expense, debt issuance costs, unrealized (gains) losses on derivatives, non-cash charges such as non-cash equity compensation expense, and charges that are unusual such as transaction expenses primarily associated with our acquisitions, income tax expense, distributions from unconsolidated affiliates and general partner's contribution, less earnings in unconsolidated affiliates, gains (losses) that are unusual such as gain on revaluation of equity interest, and gain on sale of the Propane Business, other, net, and gain (loss) on sale of assets, net.

Distributable cash flow ("DCF") is a significant performance metric used by us and by external users of the Partnership's financial statements, such as investors, commercial banks and research analysts, to compare basic cash flows generated by us to the cash distributions we expect to pay the Partnership's unitholders. Using this metric, management and external users of the Partnership's financial statements can quickly compute the coverage ratio of estimated cash flows to planned cash distributions. DCF is also an important financial measure for the Partnership's unitholders since it serves as an indicator of the Partnership's success in providing a cash return on investment. Specifically, this financial measure may indicate to investors whether we are generating cash flow at a level that can sustain or support an increase in the Partnership's quarterly distribution rates. DCF is also a quantitative standard used throughout the investment community with respect to publicly traded partnerships and limited liability companies because the value of a unit of such an entity is generally determined by the unit's yield (which in turn is based on the amount of cash distributions the entity pays to a unitholder). DCF will not reflect changes in working capital balances.

We define DCF as Adjusted EBITDA, less interest expense, normalized maintenance capital expenditures, and distributions related to the Series A and Series C convertible preferred units. The GAAP financial measure most comparable to DCF is Net income (loss) attributable to the Partnership.

Segment gross margin and total segment gross margin are metrics that we use to evaluate our performance.

We define segment gross margin in our Gas Gathering and Processing Services segment as total revenue plus unconsolidated affiliate earnings less unrealized gains or plus unrealized losses on commodity derivatives, construction and operating management agreement income and the cost of natural gas, and NGLs and condensate purchased.

We define segment gross margin in our Liquid Pipelines and Services segment as total revenue plus unconsolidated affiliate earnings less unrealized gains or plus unrealized losses on commodity derivatives and the cost of crude oil purchased in connection with fixed-margin arrangements. Substantially all of our gross margin in this segment is fee-based or fixed-margin, with little to no direct commodity price risk.

We define segment gross margin in our Natural Gas Transportation Services segment as total revenue plus unconsolidated affiliate earnings less the cost of natural gas purchased in connection with fixed-margin arrangements. Substantially all of our gross margin in this segment is fee-based or fixed-margin, with little to no direct commodity price risk.

We define segment gross margin in our Offshore Pipelines and Services segment as total revenue plus unconsolidated affiliate earnings less the cost of natural gas purchased in connection with fixed-margin arrangements. Substantially all of our gross margin in this segment is fee-based or fixed-margin, with little to no direct commodity price risk.

We define segment gross margin in our Terminalling Services segment as total revenue less direct operating expense which includes direct labor, general materials and supplies and direct overhead.

Total segment gross margin is a supplemental non-GAAP financial measure that we use to evaluate our performance. We define total segment gross margin as the sum of the segment gross margins for our Gas Gathering and Processing Services, Liquid Pipelines and Services, Natural Gas Transportation Services, Offshore Pipelines and Services and Terminalling Services segments. The GAAP measure most directly comparable to total segment gross margin is Net income (loss) attributable to the Partnership.

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SOURCE American Midstream Partners, LP