X0306 4 2021-01-31 0001647513 Noble Midstream Partners LP NBLX 0001683595 Christensen Thomas W. 1001 NOBLE ENERGY WAY HOUSTON TX 77070 1 Chief Financial Officer/CAO Common Units Representing Limited Partner Interests 2021-01-31 4 F 0 414 11.57 D 20434 D Common Units Representing Limited Partner Interests 2021-02-01 4 F 0 277 11.30 D 20157 D Reflects units relinquished to Noble Midstream Partners LP by the reporting person out of, and to cover estimated tax withholding for, restricted units granted on January 31, 2020. The unit price reflected in Table I Column 4 was determined based on "fair market value," defined in the 2016 Plan for this transaction as the closing trading price of Noble Midstream Partners LP common unit on the NASDQ on January 29, 2021. Reflects units relinquished to Noble Midstream Partners LP by the reporting person out of, and to cover estimated tax withholding for, restricted units granted on February 1, 2018, and vesting on February 1, 2019. The unit price reflected in Table I Column 4 was determined based on "fair market value," defined in the 2016 Plan for this transaction as the closing trading price of Noble Midstream Partners LP common unit on the NASDAQ on February 1, 2021. /s/ Aaron Carlson, attorney-in-fact for Thomas W. Christensen 2021-02-02