Energizing American Shipbuilding Act of 2021 This bill directs (1) the Federal Energy Regulatory Commission (FERC) to require specified percentages of liquefied natural gas exports to be transported on vessels built or retrofitted in the United States and documented under its laws, and (2) the President to require specified percentages of crude oil exports to be transported on vessels built or retrofitted in the United States and documented under its laws. FERC and the President may waive these requirements under specified circumstances. The Energy Information Administration must collect and publish information on exports of natural gas and crude oil by vessels, including forecasts and data on those exports.