What follows is an opinion from a United States Court of Appeals. Your task is to identify the federal agency (if any) whose decision was reviewed by the court of appeals. If there was no prior agency action, choose "not applicable".

Opinion:
CONTINENTAL OIL COMPANY, Petitioner, v. FEDERAL POWER COMMISSION, Respondent.
No. 15678.
United States Court of Appeals Fifth Circuit.
June 30, 1956.
Wm. R. Choate, W. V. Ballew, Jr., Roland B. Voight, Wallace B. Clift, Jr., Houston, Tex., Baker, Botts, Andrews & Shepherd, Houston, Tex., of counsel, for petitioner.
Willard W. Gatchell, Gen. Counsel for Federal Power Commission, Lambert Mc-Allister, Asst. Gen. Counsel, Washington, D. C., Abraham R. Spalter, Atty., Washington, D. C., for respondent.
Before BORAH, RIVES and BROWN, Circuit Judges.
BORAH, Circuit Judge.
Due to the similarity of facts and identity of legal principles involved in this case with those in Stanolind Oil & Gas Co. v. Federal Power Commission, 236 F.2d 824, the petition for review herein is dismissed for lack of jurisdiction.
JOHN R. BROWN, Circuit Judge, dissenting. For dissenting opinion see 236 F.2d 785.

Question: What federal agency's decision was reviewed by the court of appeals?

Choices:
Benefits Review Board
Civil Aeronautics Board
Civil Service Commission
Federal Communications Commission
Federal Energy Regulatory Commission
Federal Power Commission
Federal Maritime Commission
Federal Trade Commission
Interstate Commerce Commission
National Labor Relations Board
Atomic Energy Commission
Nuclear Regulatory Commission
Securities & Exchange Commission
Other federal agency
Not ascertained or not applicable

Answer: 5