PARIS—France will announce potential sanctions over energy prices and trade “by the end of the week” in its fishing dispute with the United Kingdom, the government spokesman said Wednesday. France vehemently protested the decision last month by the UK and the Channel Island of Jersey to refuse dozens of French fishing boats a license to operate in their territorial waters. Paris called the move “unacceptable.” France considers the restrictions as contrary to the post-Brexit agreement that the British government signed when it left the European Union. “We are obviously in a position to take sanctions if the agreement is not respected,” French government spokesperson Gabriel Attal said. “There are several types of sanctions that are possible: energy prices, access to [French] ports, tariffs issues.” Jersey, which is only 14 miles (22 kilometers) off the French coast, is a British Crown dependency outside of the UK. As such, it has its …