{"transactions":[{"id":3456743,"issuer":{"id":155869,"kind":"organization","name":"Third Coast Midstream, LLC","symbol":"AMID"},"owners":[{"id":155870,"kind":"person","name":"ARCLIGHT ENERGY PARTNERS FUND V, L.P.","position":1,"cik":"0001502553","reported_name":"ARCLIGHT ENERGY PARTNERS FUND V, L.P.","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":true,"other_text":"SEE REMARKS"}},{"id":155871,"kind":"person","name":"Magnolia Infrastructure Holdings, LLC","position":2,"cik":"0001673060","reported_name":"Magnolia Infrastructure Holdings, LLC","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}},{"id":155872,"kind":"person","name":"Magnolia Infrastructure Partners, LLC","position":3,"cik":"0001638285","reported_name":"Magnolia Infrastructure Partners, LLC","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}},{"id":155873,"kind":"person","name":"American Midstream GP, LLC","position":4,"cik":"0001526603","reported_name":"American Midstream GP, LLC","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}},{"id":155874,"kind":"person","name":"High Point Infrastructure Partners, LLC","position":5,"cik":"0001575227","reported_name":"High Point Infrastructure Partners, LLC","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}},{"id":155875,"kind":"person","name":"AMID GP Holdings, LLC","position":6,"cik":"0001715051","reported_name":"AMID GP Holdings, LLC","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}},{"id":155876,"kind":"person","name":"ArcLight Capital Holdings, LLC","position":7,"cik":"0001441290","reported_name":"ArcLight Capital Holdings, LLC","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}},{"id":106425,"kind":"organization","name":"ArcLight Capital Partners, LLC","position":8,"cik":"0001502945","reported_name":"ArcLight Capital Partners, LLC","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}},{"id":96039,"kind":"person","name":"Revers Daniel R","position":9,"cik":"0001405456","reported_name":"Revers Daniel R","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Common Units (limited partner interests)","published_at":"2019-07-24T16:52:52.000Z","date":"2019-07-23","kind":"disposition_to_issuer","acquired":false,"shares":42514126,"price":0,"value":0.0,"ownership":{"direct":false,"nature":"See footnote"},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Represents common units representing limited partnership interests (the \"Common Units\") of Third Coast Midstream, LLC (f/k/a American Midstream Partners, LP), a Delaware limited liability company (the \"Issuer\")."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Pursuant to that certain Master Contribution Agreement, dated July 22, 2019, by and among Anchor Midstream Acquisition, LLC, a Delaware limited liability company (\"Anchor Acquisition\"), 3CM Holdings, LLC (f/k/a High Point Infrastructure Partners, LLC), a Delaware limited liability company (\"3CM\"), Third Coast Midstream Holdings, LLC (f/k/a/ American Midstream GP, LLC), a Delaware limited liability company (the \"General Partner\"), Magnolia Infrastructure Holdings, LLC, a Delaware limited liability company (\"Magnolia Holdings\"), Magnolia Infrastructure Partners, LLC, a Delaware limited liability company (\"Magnolia\"), AMID GP Holdings, LLC, a Delaware limited liability company (\"AMID GP\"), JP Energy Development, L.P., a Delaware limited partnership (\"JP Energy\"), Busbar II, LLC, a Delaware limited liability company (\"Busbar\"), High Point Energy, LLC, a Texas limited liability company, ArcLight Energy Partners Fund V, L.P.,"},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F3","text":"(continued from footnote 2) a Delaware limited partnership (\"Fund V\"), Stephen W. Bergstrom, individually (\"Bergstrom\") and Daniel C. Campbell, individually, (i) JP Energy, as holder of 422,805 Common Units, transferred all of its Common Units to Magnolia Holdings, (ii) Magnolia Holdings, as holder of 20,372,720 Common Units, transferred all of its Common Units to the General Partner, (iii) Magnolia, as holder of 5,108,669 Common Units, transferred all of its Common Units to the General Partner, (iv) Busbar, as holder of 2,853,482 Common Units, transferred all of its Common Units to the General Partner and (v) Bergstrom, as holder of 64,221 Common Units, transferred all of his Common Units to the General Partner. Immediately following the preceding transactions, the General Partner, as holder of 41,209,117 Common Units, transferred all of its Common Units to Anchor Acquisition."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F4","text":"On July 23, 2019, pursuant to a Plan of Conversion adopted by the Issuer, the Issuer converted into a Delaware limited liability company named \"Third Coast Midstream, LLC\" (\"Third Coast Midstream\" and, such conversion, the \"AMID Conversion\"). In connection with the AMID Conversion, each Common Unit issued and outstanding immediately prior to the AMID Conversion was converted into one limited liability company unit of Third Coast Midstream. Magnolia Holdings also beneficially owns 1,369,230 Common Units issuable upon exercise of the warrants issued to Magnolia Holdings by the Issuer, dated July 18, 2019. After the AMID Conversion, all of the outstanding warrants converted into the right to receive 1,369,230 limited liability company units of Third Coast Midstream. As a result of the AMID Conversion, all Common Units were cancelled and ceased to be outstanding and none of JP Energy, Magnolia Holdings, Magnolia and Busbar beneficially own any Common Units."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F1","text":"Represents common units representing limited partnership interests (the \"Common Units\") of Third Coast Midstream, LLC (f/k/a American Midstream Partners, LP), a Delaware limited liability company (the \"Issuer\")."}],"balance_after":0,"source":{"system":"sec-edgar","filing":"0000899243-19-020240","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1715051/000089924319020240/doc4.xml","form_type":"4"}},{"id":3526143,"issuer":{"id":155869,"kind":"organization","name":"Third Coast Midstream, LLC","symbol":"AMID"},"owners":[{"id":155870,"kind":"person","name":"ARCLIGHT ENERGY PARTNERS FUND V, L.P.","position":1,"cik":"0001502553","reported_name":"ARCLIGHT ENERGY PARTNERS FUND V, L.P.","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":true,"other_text":"SEE REMARKS"}},{"id":155871,"kind":"person","name":"Magnolia Infrastructure Holdings, LLC","position":2,"cik":"0001673060","reported_name":"Magnolia Infrastructure Holdings, LLC","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}},{"id":155872,"kind":"person","name":"Magnolia Infrastructure Partners, LLC","position":3,"cik":"0001638285","reported_name":"Magnolia Infrastructure Partners, LLC","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}},{"id":155873,"kind":"person","name":"American Midstream GP, LLC","position":4,"cik":"0001526603","reported_name":"American Midstream GP, LLC","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}},{"id":155874,"kind":"person","name":"High Point Infrastructure Partners, LLC","position":5,"cik":"0001575227","reported_name":"High Point Infrastructure Partners, LLC","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":true,"other_text":"See Remarks"}},{"id":155875,"kind":"person","name":"AMID GP Holdings, LLC","position":6,"cik":"0001715051","reported_name":"AMID GP Holdings, LLC","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}},{"id":155876,"kind":"person","name":"ArcLight Capital Holdings, LLC","position":7,"cik":"0001441290","reported_name":"ArcLight Capital Holdings, LLC","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}},{"id":106425,"kind":"organization","name":"ArcLight Capital Partners, LLC","position":8,"cik":"0001502945","reported_name":"ArcLight Capital Partners, LLC","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}},{"id":96039,"kind":"person","name":"Revers Daniel R","position":9,"cik":"0001405456","reported_name":"Revers Daniel R","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Series C Convertible Preferred Units","published_at":"2019-05-15T17:22:32.000Z","date":"2019-05-13","kind":"grant","acquired":true,"shares":280734,"price":13.98,"value":3924661.32,"ownership":{"direct":false,"nature":"(3)"},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F3","text":"Represents Series C Convertible Preferred Units (the \"Series C Units\") held by Magnolia Infrastructure Holdings, LLC (\"Magnolia Holdings\") received on a quarterly basis as payment-in-kind in lieu of cash distributions on the Series C Units owned on the distribution record date.  The Series C Units have no expiration date and are convertible in whole or part into Common Units at a conversion ratio of 1:1.0014 at any time."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F3","text":"Represents Series C Convertible Preferred Units (the \"Series C Units\") held by Magnolia Infrastructure Holdings, LLC (\"Magnolia Holdings\") received on a quarterly basis as payment-in-kind in lieu of cash distributions on the Series C Units owned on the distribution record date.  The Series C Units have no expiration date and are convertible in whole or part into Common Units at a conversion ratio of 1:1.0014 at any time."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F3","text":"Represents Series C Convertible Preferred Units (the \"Series C Units\") held by Magnolia Infrastructure Holdings, LLC (\"Magnolia Holdings\") received on a quarterly basis as payment-in-kind in lieu of cash distributions on the Series C Units owned on the distribution record date.  The Series C Units have no expiration date and are convertible in whole or part into Common Units at a conversion ratio of 1:1.0014 at any time."}],"balance_after":9808777,"derivative":{"underlying":"Common Units (limited partner interests)","underlying_shares":281127},"source":{"system":"sec-edgar","filing":"0001513965-19-000065","document":"wf-form4_155795533660415.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1715051/000151396519000065/wf-form4_155795533660415.xml","form_type":"4"}},{"id":3526142,"issuer":{"id":155869,"kind":"organization","name":"Third Coast Midstream, LLC","symbol":"AMID"},"owners":[{"id":155870,"kind":"person","name":"ARCLIGHT ENERGY PARTNERS FUND V, L.P.","position":1,"cik":"0001502553","reported_name":"ARCLIGHT ENERGY PARTNERS FUND V, L.P.","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":true,"other_text":"SEE REMARKS"}},{"id":155871,"kind":"person","name":"Magnolia Infrastructure Holdings, LLC","position":2,"cik":"0001673060","reported_name":"Magnolia Infrastructure Holdings, LLC","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}},{"id":155872,"kind":"person","name":"Magnolia Infrastructure Partners, LLC","position":3,"cik":"0001638285","reported_name":"Magnolia Infrastructure Partners, LLC","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}},{"id":155873,"kind":"person","name":"American Midstream GP, LLC","position":4,"cik":"0001526603","reported_name":"American Midstream GP, LLC","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}},{"id":155874,"kind":"person","name":"High Point Infrastructure Partners, LLC","position":5,"cik":"0001575227","reported_name":"High Point Infrastructure Partners, LLC","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":true,"other_text":"See Remarks"}},{"id":155875,"kind":"person","name":"AMID GP Holdings, LLC","position":6,"cik":"0001715051","reported_name":"AMID GP Holdings, LLC","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}},{"id":155876,"kind":"person","name":"ArcLight Capital Holdings, LLC","position":7,"cik":"0001441290","reported_name":"ArcLight Capital Holdings, LLC","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}},{"id":106425,"kind":"organization","name":"ArcLight Capital Partners, LLC","position":8,"cik":"0001502945","reported_name":"ArcLight Capital Partners, LLC","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}},{"id":96039,"kind":"person","name":"Revers Daniel R","position":9,"cik":"0001405456","reported_name":"Revers Daniel R","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Series A-2 Convertible Preferred Units","published_at":"2019-05-15T17:22:32.000Z","date":"2019-05-13","kind":"grant","acquired":true,"shares":102729,"price":13.66,"value":1403278.14,"ownership":{"direct":false,"nature":"(2)"},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F2","text":"Represents Series A-2 Convertible Preferred Units (the \"Series A-2 Units\") held by Magnolia Infrastructure Partners, LLC (\"Magnolia\") received on a quarterly basis as payment-in-kind in lieu of cash distributions on the Series A-2 Units owned on the distribution record date.  The Series A-2 Units have no expiration date and are convertible in whole or part into Common Units at a conversion ratio of 1:1.2811 at any time."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F2","text":"Represents Series A-2 Convertible Preferred Units (the \"Series A-2 Units\") held by Magnolia Infrastructure Partners, LLC (\"Magnolia\") received on a quarterly basis as payment-in-kind in lieu of cash distributions on the Series A-2 Units owned on the distribution record date.  The Series A-2 Units have no expiration date and are convertible in whole or part into Common Units at a conversion ratio of 1:1.2811 at any time."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F2","text":"Represents Series A-2 Convertible Preferred Units (the \"Series A-2 Units\") held by Magnolia Infrastructure Partners, LLC (\"Magnolia\") received on a quarterly basis as payment-in-kind in lieu of cash distributions on the Series A-2 Units owned on the distribution record date.  The Series A-2 Units have no expiration date and are convertible in whole or part into Common Units at a conversion ratio of 1:1.2811 at any time."}],"balance_after":4489748,"derivative":{"underlying":"Common Units (limited partner interests)","underlying_shares":131606},"source":{"system":"sec-edgar","filing":"0001513965-19-000065","document":"wf-form4_155795533660415.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1715051/000151396519000065/wf-form4_155795533660415.xml","form_type":"4"}},{"id":3526141,"issuer":{"id":155869,"kind":"organization","name":"Third Coast Midstream, LLC","symbol":"AMID"},"owners":[{"id":155870,"kind":"person","name":"ARCLIGHT ENERGY PARTNERS FUND V, L.P.","position":1,"cik":"0001502553","reported_name":"ARCLIGHT ENERGY PARTNERS FUND V, L.P.","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":true,"other_text":"SEE REMARKS"}},{"id":155871,"kind":"person","name":"Magnolia Infrastructure Holdings, LLC","position":2,"cik":"0001673060","reported_name":"Magnolia Infrastructure Holdings, LLC","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}},{"id":155872,"kind":"person","name":"Magnolia Infrastructure Partners, LLC","position":3,"cik":"0001638285","reported_name":"Magnolia Infrastructure Partners, LLC","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}},{"id":155873,"kind":"person","name":"American Midstream GP, LLC","position":4,"cik":"0001526603","reported_name":"American Midstream GP, LLC","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}},{"id":155874,"kind":"person","name":"High Point Infrastructure Partners, LLC","position":5,"cik":"0001575227","reported_name":"High Point Infrastructure Partners, LLC","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":true,"other_text":"See Remarks"}},{"id":155875,"kind":"person","name":"AMID GP Holdings, LLC","position":6,"cik":"0001715051","reported_name":"AMID GP Holdings, LLC","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}},{"id":155876,"kind":"person","name":"ArcLight Capital Holdings, LLC","position":7,"cik":"0001441290","reported_name":"ArcLight Capital Holdings, LLC","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}},{"id":106425,"kind":"organization","name":"ArcLight Capital Partners, LLC","position":8,"cik":"0001502945","reported_name":"ArcLight Capital Partners, LLC","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}},{"id":96039,"kind":"person","name":"Revers Daniel R","position":9,"cik":"0001405456","reported_name":"Revers Daniel R","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Series A-1 Convertible Preferred Units","published_at":"2019-05-15T17:22:32.000Z","date":"2019-05-13","kind":"grant","acquired":true,"shares":239779,"price":13.66,"value":3275381.14,"ownership":{"direct":false,"nature":"(1)"},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"Represents Series A-1 Convertible Preferred Units (the \"Series A-1 Units) held directly by American Midstream GP, LLC (the \"General Partner\"), the general partner of American Midstream Partners, LP (the \"Issuer\") received on a quarterly basis as payment-in-kind in lieu of cash distributions on the Series A-1 Units owned on the distribution record date.  The Series A-1 Units have no expiration date and are convertible in whole or in part into common units of the Issuer (\"Common Units\") at a conversion ratio of 1:1.2811 at any time."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"Represents Series A-1 Convertible Preferred Units (the \"Series A-1 Units) held directly by American Midstream GP, LLC (the \"General Partner\"), the general partner of American Midstream Partners, LP (the \"Issuer\") received on a quarterly basis as payment-in-kind in lieu of cash distributions on the Series A-1 Units owned on the distribution record date.  The Series A-1 Units have no expiration date and are convertible in whole or in part into common units of the Issuer (\"Common Units\") at a conversion ratio of 1:1.2811 at any time."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F1","text":"Represents Series A-1 Convertible Preferred Units (the \"Series A-1 Units) held directly by American Midstream GP, LLC (the \"General Partner\"), the general partner of American Midstream Partners, LP (the \"Issuer\") received on a quarterly basis as payment-in-kind in lieu of cash distributions on the Series A-1 Units owned on the distribution record date.  The Series A-1 Units have no expiration date and are convertible in whole or in part into common units of the Issuer (\"Common Units\") at a conversion ratio of 1:1.2811 at any time."}],"balance_after":10479528,"derivative":{"underlying":"Common Units (limited partner interests)","underlying_shares":239779},"source":{"system":"sec-edgar","filing":"0001513965-19-000065","document":"wf-form4_155795533660415.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1715051/000151396519000065/wf-form4_155795533660415.xml","form_type":"4"}},{"id":4052230,"issuer":{"id":155869,"kind":"organization","name":"Third Coast Midstream, LLC","symbol":"AMID"},"owners":[{"id":155870,"kind":"person","name":"ARCLIGHT ENERGY PARTNERS FUND V, L.P.","position":1,"cik":"0001502553","reported_name":"ARCLIGHT ENERGY PARTNERS FUND V, L.P.","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":true,"other_text":"SEE REMARKS"}},{"id":155871,"kind":"person","name":"Magnolia Infrastructure Holdings, LLC","position":2,"cik":"0001673060","reported_name":"Magnolia Infrastructure Holdings, LLC","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}},{"id":155872,"kind":"person","name":"Magnolia Infrastructure Partners, LLC","position":3,"cik":"0001638285","reported_name":"Magnolia Infrastructure Partners, LLC","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}},{"id":155874,"kind":"person","name":"High Point Infrastructure Partners, LLC","position":4,"cik":"0001575227","reported_name":"High Point Infrastructure Partners, LLC","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":true,"other_text":"See Remarks"}},{"id":155875,"kind":"person","name":"AMID GP Holdings, LLC","position":5,"cik":"0001715051","reported_name":"AMID GP Holdings, LLC","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}},{"id":155876,"kind":"person","name":"ArcLight Capital Holdings, LLC","position":6,"cik":"0001441290","reported_name":"ArcLight Capital Holdings, LLC","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}},{"id":106425,"kind":"organization","name":"ArcLight Capital Partners, LLC","position":7,"cik":"0001502945","reported_name":"ArcLight Capital Partners, LLC","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}},{"id":96039,"kind":"person","name":"Revers Daniel R","position":8,"cik":"0001405456","reported_name":"Revers Daniel R","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Series C Convertible Preferred Units","published_at":"2018-02-16T17:04:33.000Z","date":"2018-02-14","kind":"grant","acquired":true,"shares":276195,"price":13.39,"value":3698251.05,"ownership":{"direct":false,"nature":"(3)"},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F3","text":"Represents Series C Convertible Preferred Units (the \"Series C Units\") held by Magnolia Infrastructure Holdings, LLC (\"Magnolia Holdings\") received on a quarterly basis as payment-in-kind in lieu of cash distributions on the Series C Units owned on the distribution record date.  The Series C Units have no expiration date and are convertible in whole or part into common units of American Midstream Partners, LP (the \"Issuer\") (\"Common Units\") at a conversion ratio of 1:1.0456 at any time."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F3","text":"Represents Series C Convertible Preferred Units (the \"Series C Units\") held by Magnolia Infrastructure Holdings, LLC (\"Magnolia Holdings\") received on a quarterly basis as payment-in-kind in lieu of cash distributions on the Series C Units owned on the distribution record date.  The Series C Units have no expiration date and are convertible in whole or part into common units of American Midstream Partners, LP (the \"Issuer\") (\"Common Units\") at a conversion ratio of 1:1.0456 at any time."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F3","text":"Represents Series C Convertible Preferred Units (the \"Series C Units\") held by Magnolia Infrastructure Holdings, LLC (\"Magnolia Holdings\") received on a quarterly basis as payment-in-kind in lieu of cash distributions on the Series C Units owned on the distribution record date.  The Series C Units have no expiration date and are convertible in whole or part into common units of American Midstream Partners, LP (the \"Issuer\") (\"Common Units\") at a conversion ratio of 1:1.0456 at any time."}],"balance_after":9241642,"derivative":{"underlying":"Common Units (limited partner interests)","underlying_shares":288789},"source":{"system":"sec-edgar","filing":"0001513965-18-000016","document":"wf-form4_151881865842671.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1715051/000151396518000016/wf-form4_151881865842671.xml","form_type":"4"}},{"id":4052229,"issuer":{"id":155869,"kind":"organization","name":"Third Coast Midstream, LLC","symbol":"AMID"},"owners":[{"id":155870,"kind":"person","name":"ARCLIGHT ENERGY PARTNERS FUND V, L.P.","position":1,"cik":"0001502553","reported_name":"ARCLIGHT ENERGY PARTNERS FUND V, L.P.","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":true,"other_text":"SEE REMARKS"}},{"id":155871,"kind":"person","name":"Magnolia Infrastructure Holdings, LLC","position":2,"cik":"0001673060","reported_name":"Magnolia Infrastructure Holdings, LLC","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}},{"id":155872,"kind":"person","name":"Magnolia Infrastructure Partners, LLC","position":3,"cik":"0001638285","reported_name":"Magnolia Infrastructure Partners, LLC","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}},{"id":155874,"kind":"person","name":"High Point Infrastructure Partners, LLC","position":4,"cik":"0001575227","reported_name":"High Point Infrastructure Partners, LLC","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":true,"other_text":"See Remarks"}},{"id":155875,"kind":"person","name":"AMID GP Holdings, LLC","position":5,"cik":"0001715051","reported_name":"AMID GP Holdings, LLC","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}},{"id":155876,"kind":"person","name":"ArcLight Capital Holdings, LLC","position":6,"cik":"0001441290","reported_name":"ArcLight Capital Holdings, LLC","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}},{"id":106425,"kind":"organization","name":"ArcLight Capital Partners, LLC","position":7,"cik":"0001502945","reported_name":"ArcLight Capital Partners, LLC","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}},{"id":96039,"kind":"person","name":"Revers Daniel R","position":8,"cik":"0001405456","reported_name":"Revers Daniel R","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Series A-2 Convertible Preferred Units","published_at":"2018-02-16T17:04:33.000Z","date":"2018-02-14","kind":"grant","acquired":true,"shares":87079,"price":15.23,"value":1326213.17,"ownership":{"direct":false,"nature":"(2)"},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F2","text":"Represents Series A-2 Convertible Preferred Units (the \"Series A-2 Units\") held by Magnolia Infrastructure Partners, LLC (\"Magnolia\") received on a quarterly basis as payment-in-kind in lieu of cash distributions on the Series A-2 Units owned on the distribution record date. 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The Series A-1 Units have no expiration date and are convertible in whole or in part into common units of American Midstream Partners, LP (the \"Issuer\") (\"Common Units\") at a conversion ratio of 1:1.1154 at any time."},{"field":"kind","element":"transactionCoding","label":"F1","text":"Represents Series A-1 Convertible Preferred Units (the \"Series A-1 Units\") held directly by High Point Infrastructure Partners, LLC (\"HPIP\") received on a quarterly basis as payment-in-kind in lieu of cash distributions on the Series A-1 Units owned on the distribution record date. The Series A-1 Units have no expiration date and are convertible in whole or in part into common units of American Midstream Partners, LP (the \"Issuer\") (\"Common Units\") at a conversion ratio of 1:1.1154 at any time."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"Represents Series A-1 Convertible Preferred Units (the \"Series A-1 Units\") held directly by High Point Infrastructure Partners, LLC (\"HPIP\") received on a quarterly basis as payment-in-kind in lieu of cash distributions on the Series A-1 Units owned on the distribution record date. The Series A-1 Units have no expiration date and are convertible in whole or in part into common units of American Midstream Partners, LP (the \"Issuer\") (\"Common Units\") at a conversion ratio of 1:1.1154 at any time."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F1","text":"Represents Series A-1 Convertible Preferred Units (the \"Series A-1 Units\") held directly by High Point Infrastructure Partners, LLC (\"HPIP\") received on a quarterly basis as payment-in-kind in lieu of cash distributions on the Series A-1 Units owned on the distribution record date. The Series A-1 Units have no expiration date and are convertible in whole or in part into common units of American Midstream Partners, LP (the \"Issuer\") (\"Common Units\") at a conversion ratio of 1:1.1154 at any time."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Represents the aggregate number of Series A-1 Units held after the acquisition of Series A-1 Units reported in Column 5 of this line item."}],"balance_after":7376568,"derivative":{"underlying":"Common Units (limited partner interests)","underlying_shares":106745},"source":{"system":"sec-edgar","filing":"0001513965-17-000119","document":"wf-form4a_150343329349954.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1715051/000151396517000119/wf-form4a_150343329349954.xml","form_type":"4/A","original_submission_date":"2017-08-16"}}]}