There is no UK Energy Minister as such, it's a responsibility that is held by the Secretary of State for Trade and Industry. In 1994 it was Michael Hestletine.
The UK is a monarchy so doesn't have a President. The monarch in 1994 was Queen Elizabeth II and the Prime Minister was John Major.
This depends on the country. Reask your question or see related questions. Canada: Jean Chretien was the Prime Minister in 1994. UK: John Major was the prime minister of the UK in 1994.
John Strachey was the Minister of Food in the UK in 1948.
The current Prime Minister of the UK is David Cameron. Every Thursday, the Queen of the UK meets the Prime Minister.
Keith Mitchell is the Minister of Energy for Grenada.
Aleksandr Ozerets is the Minister of Energy for Belarus.
Zeyar Aung is the Minister of Energy for Burma.
Hamid Chitchian is the Minister of Energy for Iran.
Jaroslav Neverovic is the Minister of Energy for Lithuania.
Salvador Namburete is the Minister of Energy for Mozambique.
Mishig Sonompil is the Minister of Energy for Mongolia.
Richard Fienena is the Minister of Energy for Madagascar.