Chevron cut 575 positions in the Houston area after it completed its $55 billion merger with Hess, a Texas Workforce Commission filing revealed on Wednesday.

IT staff from both Chevron and Hess worked together to plan the integration. Affected Hess employees were given the option to request severance packages. The layoffs are expected

Chevron will lay off nearly 600 legacy Hess workers after its $55 billion acquisition July 18, according to the Texas Workforce Commission.