On March 23, 2020, K. Phil Yoo gave notice to Antero Midstream Corporation (“Antero Midstream”) and Antero Resources Corporation (“Antero Resources”) of his intent to retire as Vice President, Accounting and Chief Accounting Officer of each company. Mr. Yoo's retirement is expected to take effect on May 15, 2020. Mr. Yoo's retirement is not the result of any disagreement with Antero Midstream or Antero Resources.

Mr. Yoo will be succeeded by Sheri Pearce, who will begin serving as Antero Midstream's and Antero Resources' Chief Accounting Officer following the effectiveness of Mr. Yoo's resignation. Ms. Pearce (age 53) joined Antero Midstream and Antero Resources in November 2018 to serve as Director of SEC Reporting at both companies. Prior to joining Antero Midstream and Antero Resources, Ms. Pearce worked as an independent consultant after retiring from KPMG LLP in March 2015.

Ms. Pearce was an audit partner with KPMG where she principally served publicly traded clients in the energy and mining industries for 25 years. Ms. Pearce joined KPMG in 1990 and was elected to the partnership in 2000.