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The Phantom Shares vest on March 8, 2020 and have no expiration date."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F2","text":"The Phantom Shares are the economic equivalent of an equal number of Class A shares. 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The number of New HESM Class A Shares subject to each New HESM Phantom Share is equal to the number of Old HESM Common Units subject to such Phantom Unit immediately prior to the Effective Time.  Each New HESM Phantom Share will continue to be subject to the same terms and conditions as applied to the corresponding Phantom Unit immediately prior to the Effective Time."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F3","text":"Pursuant to the Merger Agreement,  each issued and outstanding Phantom Unit of Old HESM owned by the Reporting Person immediately prior to the Effective Time, whether vested or unvested, was automatically converted into an equal number of Phantom Shares of New HESM.  The number of New HESM Class A Shares subject to each New HESM Phantom Share is equal to the number of Old HESM Common Units subject to such Phantom Unit immediately prior to the Effective Time.  Each New HESM Phantom Share will continue to be subject to the same terms and conditions as applied to the corresponding Phantom Unit immediately prior to the Effective Time."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F3","text":"Pursuant to the Merger Agreement,  each issued and outstanding Phantom Unit of Old HESM owned by the Reporting Person immediately prior to the Effective Time, whether vested or unvested, was automatically converted into an equal number of Phantom Shares of New HESM.  The number of New HESM Class A Shares subject to each New HESM Phantom Share is equal to the number of Old HESM Common Units subject to such Phantom Unit immediately prior to the Effective Time.  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Each phantom unit is the economic equivalent of one common unit."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F2","text":"The 2018 phantom units vested on March 8,2019 and have no expiration date."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F2","text":"The 2018 phantom units vested on March 8,2019 and have no expiration date."}],"balance_after":0,"derivative":{"exercise_price":0,"underlying":"Common Units","underlying_shares":3169},"source":{"system":"sec-edgar","filing":"0001209191-19-018893","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1102903/000120919119018893/doc4.xml","form_type":"4"}},{"id":3599781,"issuer":{"id":16154,"kind":"organization","name":"Hess Midstream Partners LP","symbol":"HESM"},"owners":[{"id":61830,"kind":"person","name":"NIEMIEC DAVID W","position":1,"cik":"0001102903","reported_name":"NIEMIEC DAVID W","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Units","published_at":"2019-03-12T17:27:55.000Z","date":"2019-03-08","kind":"exercise","acquired":true,"shares":3169,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"Common units acquired upon settlement of phantom units granted in 2018 for service as a director. 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