Energy Department spent $63,500 on upgraded flights for Rick Perry in first 6 months

The Energy Dept. spent $63,500 on upgraded flights for Rick Perry.

Moniz, who was an Energy Secretary under the Obama administration, also flew an upgraded class for what was approved by the department as "exceptional security circumstances" in his final months as secretary, spending more than $42,500 on premium flights during the last three months of 2016 before he departed the agency in January. The documents obtained by ABC did not include information on Moniz's flights prior to the 2017 fiscal year.

Moniz did not immediately respond to ABC News' request for comment. A department spokesman did not provide more detail on the security situation.

Federal rules say that federal officials should use the cheapest option when they travel but that first or business class tickets can be approved in "exceptional security circumstances" or trips longer than 14 hours. Agency officials determine exactly what qualifies as a situation where an official needs to fly business or first class.

The document also shows that Perry's wife, Anita Perry, also flew business class on two official trips that cost the department about $20,000. Agency spokeswoman Shaylyn Hynes said the department was reimbursed for all of Anita Perry's travel.

Last week, the Energy Department’s internal watchdog said the department should improve procedures Perry and other officials used to gain approval for trips on non-commercial aircraft. The Energy Department previously said that the department spent $56,000 for six flights on government or private planes for Perry.

Ultimately, the inspector general said flights on chartered and government jets did not violate any agency rules.

ABC News' Matt Mosk contributed to this report.