This is the Congressional Budget Office (CBO) Cost Estimate as ordered reported by the House Committee on Foreign Affairs on September 30, 2021. From the Document: "H.R. 1311 would authorize the Department of State to establish an Assistant Secretary for Energy Resources. That official would be responsible for promoting U.S. energy interests abroad and for coordinating associated policies within the department. The legislation would also require the department to ensure that a sufficient number of staff are available to formulate policy, provide analysis, and coordinate with other federal and international entities on energy policies. [...] On the basis of information about the Bureau's organizational structure, CBO estimates that the addition of a Senate confirmed appointee would cost less than $500,000 each year and total $1 million over the 2022-2026 period. Additional personnel requirements prescribed by H.R. 1311 would be satisfied by the current staffing level of the Bureau of Energy Resources. Such spending would be subject to the availability of appropriated funds."
Congressional Budget Office: http://www.cbo.gov/