| SemGroup Corp10% owner · 1 transaction | — | 7.65Mas of Aug 2014 | — | — | 1.48M |
| Osterman Vincent JPresident, Eastern Retail, Director · 64 transactions | — | 3.98M†as of Jul 2018 | 208.1K | 30.0K | 120.2K |
| Calvert John G. +5 co-filers10% owner · 1 transaction | — | 3.70Mas of Jun 2013 | — | — | 2.00M |
| Coady Todd MSVP, Administration · 15 transactions | — | 3.66M†as of Apr 2015 | 1.17M | — | — |
| Krimbill H MichaelChief Executive Officer, Director · 73 transactions | — | 3.51M† | 1.67M | 2.76M | 300.0K |
| Hicks Oils & Hicksgas, IncReporting owner · 1 transaction | — | 1.84Mas of May 2011 | — | — | — |
| Porter Stuart D +1 co-filerDirector · 2 transactions | — | 1.81Mas of Jun 2012 | — | 545.6K | — |
| Parker Jared +1 co-filerDirector, 10% owner · 6 transactions | — | 1.55M†as of Apr 2019 | — | — | 228.8K |
| Highstar Capital GP IV Holdings +7 co-filers10% owner · 1 transaction | — | 1.46Mas of Apr 2019 | — | — | — |
| Oaktree Fund GP II, L.P. +4 co-filers10% owner · 1 transaction | — | 1.46Mas of Apr 2019 | — | — | — |
| Zartler William ADirector, 10% owner · 1 transaction | — | 1.26Mas of May 2011 | — | — | — |
| Collingsworth James MDirector · 32 transactions | — | 765.4K† | 200.0K | 548.9K | — |
| Atkinson Bradley KVP, Business Development · 9 transactions | — | 423.2K†as of Aug 2014 | 364.9K | — | — |
| Raymond John TDirector · 7 transactions | — | 376.6K | — | 376.6K | 2.70M |
| Pauling Brian KNGL Logistics President · 33 transactions | — | 372.0Kas of Mar 2013 | 30.0K | — | 47.2K |
| Ciolek JohnExecutive Vice President · 14 transactions | — | 307.3Kas of Dec 2021 | 150.0K | 129.0K | 2.0K |
| Highstar Capital IV, L.P.Director · 9 transactions | — | 285.0K†as of Jun 2017 | — | — | 607.7K |
| Tuttle Stephen DPresident, Midstream Division · 1 transaction | — | 268.1Kas of May 2011 | — | — | — |
| Karlovich Robert W IIICFO, Executive Vice President · 18 transactions | — | 264.1Kas of May 2021 | 307.5K | 20.0K | 10.7K |
| Burke James JPresident, Director · 15 transactions | — | 205.6K†as of Jul 2016 | 122.8K | — | 13.1K |
| Cooper Bradley PCFO & EVP · 1 transaction | — | 200.0Kas of Feb 2023 | — | 50.0K | — |
| Kehoe David CExec. VP NGL Crude Logistics · 15 transactions | — | 186.6Kas of Sep 2014 | 50.0K | — | 125.0K |
| Coady Shawn WDirector · 42 transactions | — | 184.6K†as of Nov 2023 | 1.39M | 22.0K | 18.8K |
| McMurray Kurston PatrickGen Counsel, Exec. VP & Sec · 21 transactions | — | 147.5Kas of Nov 2023 | 192.5K | 8.0K | — |
| Cropper Stephen LDirector · 15 transactions | — | 137.5K†as of Feb 2023 | 102.5K | 10.0K | — |
| Bridges Linda JCFO and EVP · 4 transactions | — | 126.6Kas of Nov 2022 | 15.0K | — | — |
| Reiners Derek SDirector · 11 transactions | — | 126.0Kas of Nov 2023 | 66.0K | 60.0K | — |
| Guderian Bryan KDirector · 15 transactions | — | 122.5Kas of Nov 2023 | 115.0K | 7.5K | — |
| Gognat Richard J.Sec of High Sierra Energy, LP · 1 transaction | — | 109.6Kas of Jun 2012 | — | — | — |
| Thuillier Lawrence J.Chief Accounting Officer · 27 transactions | — | 84.3Kas of Nov 2023 | 119.5K | — | 7.7K |
| Straight SharraVP & Comptroller · 5 transactions | — | 68.2Kas of Aug 2014 | 46.2K | — | — |
| Kneale James CDirector · 10 transactions | — | 56.0K†as of Nov 2019 | 49.0K | 7.0K | — |
| Atanasov Atanas HEVP, CFO and Treasurer · 15 transactions | — | 54.2Kas of Feb 2016 | 82.5K | — | — |
| Herbers Jeffrey AChief Accounting Officer · 13 transactions | — | 30.3Kas of Nov 2015 | 70.3K | — | — |
| Jones Craig SCFO & Secretary · 2 transactions | — | 29.2Kas of Jun 2012 | — | — | — |
| Armbruster Patrice ASenior VP Accounting · 5 transactions | — | 13.5K†as of Mar 2014 | — | — | — |
| Clement KevinDirector · 1 transaction | — | 5.0Kas of Dec 2012 | — | 5.0K | — |
| SemGroup Corp +2 co-filers10% owner · 2 transactions | — | 0as of Jun 2013 | — | — | — |