From the 10K, link below:
The number of regular employees was 74.9 thousand, 71.0 thousand, and 69.6 thousand at years ended 2019, 2018, and 2017, respectively. Regular employees are defined as active executive, management, professional, technical and wage employees who work full time or part time for the Corporation and are covered by the Corporation’s benefit plans and programs.
https://ir.exxonmobil.com/static-files/cbe9b88a-c23b-43e4-b059-8aa9405596b2
Archived at: https://outline.com/EPxkj6